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Rodrigo A Toledo Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Yuejuan Qin Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Subramanya Srikantan Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Nicole Paes Morales Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Qun Li Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Yilun Deng Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Sang-Woo Kim Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Maria Adelaide A Pereira Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Sergio P A Toledo Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Xiaoping Su Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Ricardo C T Aguiar Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA
Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Patricia L M Dahia Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA
Division of Hematology and Medical Oncology, Greehey Children Cancer Research Institute, University of São Paulo School of Medicine, Department of Bioinformatics and Computational Biology, Department of Medicine, Cancer Therapy and Research Center at the University of Texas Health Science Center, 7703 Floyd Curl Drive, MC 7880, San Antonio, Texas 78229-3900, USA

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Pheochromocytomas and paragangliomas are highly vascular tumors of the autonomic nervous system. Germline mutations, including those in hypoxia-related genes, occur in one third of the cases, but somatic mutations are infrequent in these tumors. Using exome sequencing of six paired constitutive and tumor DNA from sporadic pheochromocytomas and paragangliomas, we identified a somatic mutation in the HIF2A (EPAS1) gene. Screening of an additional 239 pheochromocytomas/paragangliomas uncovered three other HIF2A variants in sporadic (4/167, 2.3%) but not in hereditary tumors or controls. Three of the mutations involved proline 531, one of the two residues that controls HIF2α stability by hydroxylation. The fourth mutation, on Ser71, was adjacent to the DNA binding domain. No mutations were detected in the homologous regions of the HIF1A gene in 132 tumors. Mutant HIF2A tumors had increased expression of HIF2α target genes, suggesting an activating effect of the mutations. Ectopically expressed HIF2α mutants in HEK293, renal cell carcinoma 786-0, or rat pheochromocytoma PC12 cell lines showed increased stability, resistance to VHL-mediated degradation, target induction, and reduced chromaffin cell differentiation. Furthermore, mice injected with cells expressing mutant HIF2A developed tumors, and those with Pro531Thr and Pro531Ser mutations had shorter latency than tumors from mice with wild-type HIF2A. Our results support a direct oncogenic role for HIF2A in human neoplasia and strengthen the link between hypoxic pathways and pheochromocytomas and paragangliomas.

Article Type:
Research Article
DOI:
https://doi.org/10.1530/ERC-13-0101
Volume/Issue:
Volume 20: Issue 3
Free access
Rodrigo A Toledo Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Roxanne Hatakana Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Delmar M Lourenço Jr Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Susan C Lindsey Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Cleber P Camacho Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Marcio Almeida Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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José V Lima Jr Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Tomoko Sekiya Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Elena Garralda Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Michel S Naslavsky Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Guilherme L Yamamoto Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Monize Lazar Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Osorio Meirelles Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Tiago J P Sobreira Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Maria Lucia Lebrao Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Yeda A O Duarte Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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John Blangero Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Mayana Zatz Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Janete M Cerutti Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Rui M B Maciel Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Sergio P A Toledo Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil
Endocrine Genetics Unit (Laboratório de Investigação Médica/LIM-25) of Hospital das Clínicas, Nursing School, School of Public Health, Human Genome Research Center, Division of Genetics, Division of Endocrinology, Brazilian National Laboratory of Biosciences, Centro Integral Oncológico Clara Campal, Department of Genetics, Endocrinology Division, Laboratory of Epidemiology and Population Sciences, University of São Paulo School of Medicine, São Paulo, São Paulo 05403-010, Brazil

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Accurate interpretation of germline mutations of the rearranged during transfection (RET) proto-oncogene is vital for the proper recommendation of preventive thyroidectomy in medullary thyroid carcinoma (MTC)-prone carriers. To gain information regarding the most disputed variant of RET, ATA-A Y791F, we sequenced blood DNA samples from a cohort of 2904 cancer-free elderly individuals (1261 via Sanger sequencing and 1643 via whole-exome/genome sequencing). We also accessed the exome sequences of an additional 8069 individuals from non-cancer-related laboratories and public databanks as well as genetic results from the Catalogue of Somatic Mutations in Cancer (COSMIC) project. The mean allelic frequency observed in the controls was 0.0031, with higher occurrences in Central European populations (0.006/0.008). The prevalence of RET Y791F in the control databases was extremely high compared with the 40 known RET pathogenic mutations (P=0.00003), while no somatic occurrence has been reported in tumours. In this study, we report new, unrelated Brazilian individuals with germline RET Y791F-only: two tumour-free elderly controls; two individuals with sporadic MTC whose Y791F-carrying relatives did not show any evidence of tumours; and a 74-year-old phaeochromocytoma patient without MTC. Furthermore, we showed that the co-occurrence of Y791F with the strong RET C634Y mutation explains the aggressive MTC phenotypes observed in a large affected family that was initially reported as Y791F-only. Our literature review revealed that limited analyses have led to the misclassification of RET Y791F as a probable pathogenic variant and, consequently, to the occurrence of unnecessary thyroidectomies. The current study will have a substantial clinical influence, as it reveals, in a comprehensive manner, that RET Y791F only shows no association with MTC susceptibility.

Article Type:
Research Article
DOI:
https://doi.org/10.1530/ERC-14-0491
Volume/Issue:
Volume 22: Issue 1
Open access
Tomoko Sekiya Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Marcello D Bronstein Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Katiuscia Benfini Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Viviane C Longuini Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Raquel S Jallad Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Marcio C Machado Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Tatiana D Goncalves Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Luciana H Osaki Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Leonardo Higashi Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Jose Viana-Jr Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil
Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Claudio Kater Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Misu Lee Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Sara Molatore Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Guilherme Francisco Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Roger Chammas Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Michel S Naslavsky Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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David Schlesinger Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil
Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Patricia Gama Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Yeda A O Duarte Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Maria Lucia Lebrão Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Mayana Zatz Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Osorio Meirelles Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Bernardo Liberman Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Maria Candida B V Fragoso Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Sergio P A Toledo Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Natalia S Pellegata Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Rodrigo A Toledo Endocrine Genetics Unit LIM-25, Neuroendocrinology Unit, Adrenal Unit (LIM-42), Experimental Oncology Laboratory (LIM-24), Nursing School, School of Public Health, Endocrinology Division, Brigadeiro Hospital, Federal University of Sao Paulo, Human Genome Research Center, Department of Cell and Developmental Biology, Instituto do Cérebro, National Institute of Aging, Institute of Pathology, School of Medicine, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil

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Abstract

Germline mutations in p27 kip1 are associated with increased susceptibility to multiple endocrine neoplasias (MEN) both in rats and humans; however, the potential role of common polymorphisms of this gene in endocrine tumor susceptibility and tumorigenesis remains mostly unrecognized. To assess the risk associated with polymorphism rs2066827 (p27-V109G), we genotyped a large cohort of Brazilian patients with sporadic endocrine tumors (pituitary adenomas, n=252; pheochromocytomas, n=125; medullary thyroid carcinoma, n=51; and parathyroid adenomas, n=19) and 885 population-matched healthy controls and determined the odds ratios and 95% CIs. Significant associations were found for the group of patients with pituitary adenomas (P=0.01), particularly for those with ACTH-secreting pituitary adenomas (P=0.005). In contrast, no association was found with GH-secreting pituitary tumors alone or with the sporadic counterpart of MEN2-component neoplasias. Our in vitro analyses revealed increased colony formation and cell growth rate for an AtT20 corticotropin mouse cell line overexpressing the p27-V109G variant compared with cells transfected with the WT p27. However, the genotypic effects in genetic and in vitro approaches were divergent. In accordance with our genetic data showing specificity for ACTH-secreting pituitary tissues, the overexpression of p27-V109G in a GH3 somatotropin rat cell line resulted in no difference compared with the WT. Pituitary tumors are one of the major clinical components of syndromes associated with the p27 pathogenic mutations MENX and MEN4. Our genetic and in vitro data indicate that the common polymorphism rs2066827 may play a role in corticotropinoma susceptibility and tumorigenesis through a molecular mechanism not fully understood thus far.

Article Type:
Research Article
DOI:
https://doi.org/10.1530/ERC-13-0486
Volume/Issue:
Volume 21: Issue 3
Free access
Frederic Castinetti Department of Endocrinology Aix Marseille University, CNRS UMR7286 La Conception Hospital, Hopitaux de Marseille, Marseille, France

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Ana Luiza Maia Thyroid Section, Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil

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Mariola Peczkowska Department of Hypertension, Institute of Cardiology, Warsaw, Poland

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Marta Barontini Center for Endocrinological Investigations, Hospital de Ninos R Gutierrez, Buenos Aires, Argentina

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Kornelia Hasse-Lazar Department of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska Curie Memorial Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland

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Thera P Links Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands

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Rodrigo A Toledo Department of Endocrinology, University of Sao Paulo School of Medicine, Sao Paulo, Brazil

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Sarka Dvorakova Department of Molecular Endocrinology, Institute of Endocrinology, Prague, Czech Republic

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Caterina Mian Operative Unit of the Endocrinology Department of Medicine (DIMED), University of Padova, Padova, Italy

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Maria Joao Bugalho Hospital de Santa Maria – CHLN, Lisboa, Portugal

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Stefania Zovato Department of Medicine (DIMED), University of Padova, Padova, Italy

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Maria Alevizaki Endocrine Unit Evgenideion Hospital and Department of Medical Therapeutics, Alexandra Hospital, Athens University School of Medicine, Athens, Greece

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Andrei Kvachenyuk Institute of Endocrinology, Kiev, Ukraine

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Birke Bausch 2nd Department of Medicine, University Medical Centre, Albert Ludwigs University of Freiburg, Freiburg, Germany

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Paola Loli Department of Endocrinology, Ospedale Niguarda Cà Granda, Milan, Italy

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Simona R Bergmann Division of Endocrinology and Diabetology, Faculty of Medicine, Philipps University of Marburg, Marburg, Germany

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Attila Patocs Molecular Medicine Research Group, HSA-SE ‘Lendület’ Hereditary Endocrine Tumor Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary

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Marija Pfeifer Department of Endocrinology, University Medical Center Ljubljana, Ljubljana, Slovenia

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Josefina Biarnes Costa Hospital Universitari de Girona, Gerencia Territorial Girona, Institut Català de la Salut, Girona, Spain

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Ernst von Dobschuetz Department of Visceral Surgery, University Medical Centre, Albert Ludwigs University of Freiburg, Freiburg, Germany

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Claudio Letizia Department of Internal Medicine and Medical Specialties, University La Sapienza, Rome, Italy

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Gerlof Valk Department of Internal Medicine, University Medical Centre Utrecht, Utrecht, Netherlands

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Marcin Barczynski Department of Endocrine Surgery, Third Chair of General Surgery, Jagiellonian University, Medical College, Krakow, Poland

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Malgorzata Czetwertynska Department of Endocrinology, Maria Sklodowska Curie Memorial Center and Institute of Oncology, Warsaw, Poland

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John T M Plukker Department of Surgery, University Medical Centre, Groningen, Netherlands

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Paola Sartorato Department of Internal Medicine, General Hospital, Montebelluna, Treviso, Italy

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Tomas Zelinka 3rd Department of Medicine, Department of Endocrinology and Metabolism, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic

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Petr Vlcek Department of Nuclear Medicine and Endocrinology, Second Faculty of Medicine, Charles University, Prague, Czech Republic

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Svetlana Yaremchuk Institute of Otolaryngology NAMS of Ukraine, Kiev, Ukraine

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Georges Weryha Department of Endocrinology, University Hospital, Nancy, France

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Letizia Canu Department of Experimental and Clinical Biomedical Sciences, Endocrinology Unit, University of Florence, Florence, Italy

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Nelson Wohllk Endocrine Section, Universidad de Chile, Hospital del Salvador, Santiago de Chile, Chile

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Frederic Sebag Department of Endocrine Surgery, Aix-Marseille University, La Conception Hospital, Marseille, France

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Martin K Walz Department of Surgery and Center of Minimally Invasive Surgery, Kliniken Essen-Mitte, Essen, Germany

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Charis Eng Genomic Medicine Institute, Lerner Research Institute and Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA

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Hartmut P H Neumann Section for Preventive Medicine, Department of Nephrology and General Medicine, University Medical Centre, Albert Ludwigs University of Freiburg, Freiburg, Germany

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Article Type:
Letter
DOI:
https://doi.org/10.1530/ERC-17-0189
Volume/Issue:
Volume 24: Issue 8
Free access