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Jie Cai
Jie Cai
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Lin Li
Lin Li
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Lei Ye
Lei Ye
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Xiaohua Jiang
Xiaohua Jiang
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Liyun Shen
Liyun Shen
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Zhibo Gao
Zhibo Gao
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Weiyuan Fang
Weiyuan Fang
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Fengjiao Huang
Fengjiao Huang
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Tingwei Su
Tingwei Su
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Yulin Zhou
Yulin Zhou
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Weiqing Wang
Weiqing Wang
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Guang Ning
Guang Ning
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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School of Medicine, BGI-Shenzhen, Laboratory for Endocrine and Metabolic Diseases of Institute of Health Science, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University, #197 Ruijin 2nd Road, Shanghai 200025 People's Republic of China
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Activating rearranged during transfection (RET) mutations function as the initiating causative mutation for multiple endocrine neoplasia type 2A (MEN2A). However, no conclusive findings regarding the non-RET genetic events have been reported. This is the first study, to our knowledge, examining genomic alterations in matched MEN2A-associated tumors. We performed exome sequencing and SNP array analysis of matched MEN2A tumors and germline DNA. Somatic alterations were validated in an independent set of patients using Sanger sequencing. Genes of functional interest were further evaluated. The germline RET mutation was found in all MEN2A-component tumors. Thirty-two somatic mutations were identified in the nine MEN2A-associated tumors, of which 28 (87.5%) were point mutations and 4 (12.5%) were small insertions, duplications, or deletions. We sequenced all the mutations as well as coding sequence regions of the 12 genes in an independent sample set including 35 medullary thyroid cancers (20 MEN2A) and 34 PCCs (22 MEN2A), but found no recurrent mutations. Recurrent alterations were found in 13 genes with either mutations or alterations in copy number, including an EIF4G1 mutation (p. E1147V). Mutation of EIF4G1 led to increased cell proliferation and RET/MAPK phosphorylation, while knockdown of EIF4G1 led to reduced cell proliferation and RET/MAPK phosphorylation in TT, MZ-CRC1, and PC-12 cells. We found fewer somatic mutations in endocrine tumors compared with non-endocrine tumors. RET was the primary driver in MEN2A-associated tumors. However, low-frequency alterations such as EIF4G1 might participate in MEN2A-associated tumorigenesis, possibly by regulating the activity of the RET pathway.
Yu-fang Bi
Yu-fang Bi
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Rui-xin Liu
Rui-xin Liu
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Lei Ye
Lei Ye
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Hai Fang
Hai Fang
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Xiao-ying Li
Xiao-ying Li
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Wei-qing Wang
Wei-qing Wang
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Ji Zhang
Ji Zhang
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Kan-Kan Wang
Kan-Kan Wang
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Lei Jiang
Lei Jiang
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Ting-wei Su
Ting-wei Su
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Zhong-yuan Chen
Zhong-yuan Chen
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Guang Ning
Guang Ning
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Department of Endocrinology and Metabolism, State Key Laboratory of Medical Genomics, Department of Thoracic Surgery, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases
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Although there has been increased knowledge about the molecular biology of neuroendocrine tumors (NETs), little is known about thymic carcinoids and even less about those with excessive hormone disorders, such as ectopic ACTH syndrome. This study was designed to gain insights into the molecular networks underlying the tumorigenesis of thymic carcinoids with ACTH secretion. By an approach integrating cDNA microarray and methods of computational biology, we compare gene expression profile between ACTH-producing thymic carcinoids and the normal thymus. In total, there are 63 biological categories increased and 108 decreased in thymic carcinoids. Cell proliferation was stimulated, which may explain the relatively uncontrolled cell growth of the tumor. Dysregulation of the Notch-signaling pathway was likely to be underlying the neuroendocrine features of this type of tumors. Moreover, inhibition of immunity and increased neuropeptide signaling molecules (POMC and its sorting molecule CPE) made the clinical manifestation reasonable and thus validated the array data. In conclusion, thymic carcinoids have a distinct gene expression pattern from the normal thymus, and they are characterized by deregulations of a series of biofunctions, which may be involved in the development of NETs. Hence, this study has provided not only a detailed comprehension of the molecular pathogenesis of thymic carcinoids with ectopic ACTH syndrome, but also a road map to approach thymic NETs at the system level.
Luming Wu
Luming Wu
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Jing Xie
Jing Xie
Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Yan Qi
Yan Qi
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Tingwei Su
Tingwei Su
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Lei Jiang
Lei Jiang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Weiwei Zhou
Weiwei Zhou
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Yiran Jiang
Yiran Jiang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Cui Zhang
Cui Zhang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Xu Zhong
Xu Zhong
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Yanan Cao
Yanan Cao
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Weiqing Wang
Weiqing Wang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Adrenal incidentalomas are the most frequent human neoplasms. Recent genomic investigations on functional adrenocortical tumors have demonstrated that somatic mutations in PRKACA and KCNJ5 responsible for the development of adrenocortical adenomas (ACAs) are associated with hypercortisolism and aldosteronism, respectively. Several studies have identified CTNNB1 mutations in ACAs and have been mostly involved in the tumorigenesis of non-functional ACA (NFACA). However, integrated genomic characterization of NFACAs is lacking. In the current study, we utilized pan-genomic methods to comprehensively analyze 60 NFACA samples. A total of 1264 somatic mutations in coding regions among the 60 samples were identified, with a median of 15 non-silent mutations per tumor. Twenty-two NFACAs (36.67%) had genetic alterations in CTNNB1. We also identified several somatic mutations in genes of the cAMP/PKA pathway and KCNJ5. Histone modification genes (KMT2A, KMT2C, and KMT2D) were altered in 10% of cases. Germline mutations of MEN1 and RET were also found. Finally, by comparison of our transcriptome data with those available in the TCGA, we illustrated the molecular characterization of NFACA. We revealed the genetic profiling and molecular landscape of NFACA. Wnt/β-catenin pathway activation as shown ssby nuclear and/or cytoplasmic β-catenin accumulation is frequent, occurring in about one–third of ACA cases. cytochrome P450 enzymes could be markers to reveal the functional status of adrenocortical tumors. These observations strongly suggest the involvement of the Wnt/β-catenin pathway in benign adrenal tumorigenesis and possibly in the regulation of steroid secretion.
Luming Wu
Luming Wu
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Jing Xie
Jing Xie
Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Yan Qi
Yan Qi
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Tingwei Su
Tingwei Su
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Lei Jiang
Lei Jiang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Weiwei Zhou
Weiwei Zhou
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Yiran Jiang
Yiran Jiang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Cui Zhang
Cui Zhang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Xu Zhong
Xu Zhong
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Yanan Cao
Yanan Cao
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Weiqing Wang
Weiqing Wang
Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR China, Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Xiao-Hua Jiang
Xiao-Hua Jiang
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Jie-Li Lu
Jie-Li Lu
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Bin Cui
Bin Cui
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Yong-Ju Zhao
Yong-Ju Zhao
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Wei-qing Wang
Wei-qing Wang
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Jian-Min Liu
Jian-Min Liu
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Wen-Qiang Fang
Wen-Qiang Fang
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Ya-Nan Cao
Ya-Nan Cao
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Yan Ge
Yan Ge
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Chang-xian Zhang
Chang-xian Zhang
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Huguette Casse
Huguette Casse
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Xiao-Ying Li
Xiao-Ying Li
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Guang Ning
Guang Ning
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Shanghai Clinical Center for Endocrine and Metabolic Diseases,, Laboratory for Endocrine and Metabolic Diseases,, Department of Radiological Medicine,, Laboratoire Genetique et Cancer,, Shanghai Key Laboratory for Endocrine Tumours,, Shanghai Institute of Endocrinology and Metabolism and Chinese-French Laboratory of Genomics and Life Sciences, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Multiple endocrine neoplasia type 1 (MEN1) is an inherited tumour syndrome characterized by the development of tumours of the parathyroid, anterior pituitary and pancreatic islets, etc. Heterozygous germ line mutations of MEN1 gene are responsible for the onset of MEN1. We investigated the probands and 31 family members from eight unrelated Chinese families associated with MEN1 and identified four novel mutations, namely 373_374ins18, 822delT, 259delT and 1092delC, as well as three previously reported mutations, such as 357_360delCTGT, 427_428delTA and R108X (CGA>TGA) of MEN1 gene. Furthermore, we detected a loss of heterozygosity (LOH) at chromosome 11q in the removed tumours, including gastrinoma, insulinoma and parathyroid adenoma from two probands of MEN1 families. RT-PCR and direct sequencing showed that mutant MEN1 transcripts remained in the MEN1-associated endocrine tumours, whereas normal menin proteins could not be detected in those tumours by either immunohistochemistry or immunoblotting. In conclusion, MEN1 heterozygous mutations are associated with LOH and menin absence, which are present in MEN1-associated endocrine tumours.
