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Department of Medicine, Department of Molecular, The Leon D. Black Family Stem Cell Institute, Mount Sinai School of Medicine, Box 1055, One Gustave L. Levy Place, New York, New York 10029, USA
Department of Medicine, Department of Molecular, The Leon D. Black Family Stem Cell Institute, Mount Sinai School of Medicine, Box 1055, One Gustave L. Levy Place, New York, New York 10029, USA
Department of Medicine, Department of Molecular, The Leon D. Black Family Stem Cell Institute, Mount Sinai School of Medicine, Box 1055, One Gustave L. Levy Place, New York, New York 10029, USA
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thyroid stem cells has been largely unstudied. This discrepancy may be due to the availability of an effective, economical, standardized, and well-tolerated hormone replacement therapy for hypothyroidism. The recent identification and characterization of
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IC Crystallography Institute, National Research Council, CNR, Catania, Italy
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Thyroid cancer incidence is increased in volcanic areas where environment pollution biocontaminates residents. Tungsten (W) is the most increased heavy metal in drinking water of Mount Etna volcanic area where it exceeds the normal range in the urine of 27% inhabitants. The possible connection between increased tungsten and thyroid cancer has never been studied. We investigated in vitro the effect tungsten on both human thyrocytes in primary culture, thyrospheres (aggregates of stem/precursor thyroid cells) and thyrocytes differentiated from tungsten-exposed thyrospheres. Chronic exposure to low-dose (nanomolar range, as in the urines of volcanic area residents) soluble tungsten had major biological effects on thyroid stem/precursor cells, promoting growth with a biphasic (hormetic) dose-response and reducing apoptosis. No such effects were observed in mature thyrocytes. In addition, tungsten-exposed thyrospheres had abnormal expression of genes commonly altered also in thyroid cancer and increased activation of the DNA-repair proteins H2AX and 53BP1. Moreover, exposure to tungsten decreased thyrosphere differentiation, as indicated by the reduced expression of thyroid-specific genes in derived thyrocytes that also showed preneoplastic changes such as increased anchorage-independent growth, clonogenic growth and migration capacity. The mechanism of action of tungsten on thyroid stem/precursor cells is unclear but involves membrane G-proteins and activation of the ERK signaling pathway. These data indicate that chronic exposure to slightly increased tungsten, harmless for mature thyrocytes, importantly affects the biology of stem/precursor thyroid cells and of their progeny, inducing characteristics of preneoplastic transformation.
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response to injury and therefore can be either quiescent or cycling, depending on the need of the organ. Adult thyroid stem cells have long been posited ( Dumont et al . 1992 ), but human thyroid follicular cells are estimated to have a turnover rate of ∼8
Developmental Biology Program, Department of Pediatrics, Department of Pediatrics, Department of Pediatrics, Division of Cell Biology, Department of Developmental and Molecular Biology, Department of Internal Medicine II, Saban Research Institute of Childrens Hospital Los Angeles, Los Angeles, California 90027, USA
Developmental Biology Program, Department of Pediatrics, Department of Pediatrics, Department of Pediatrics, Division of Cell Biology, Department of Developmental and Molecular Biology, Department of Internal Medicine II, Saban Research Institute of Childrens Hospital Los Angeles, Los Angeles, California 90027, USA
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Developmental Biology Program, Department of Pediatrics, Department of Pediatrics, Department of Pediatrics, Division of Cell Biology, Department of Developmental and Molecular Biology, Department of Internal Medicine II, Saban Research Institute of Childrens Hospital Los Angeles, Los Angeles, California 90027, USA
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Developmental Biology Program, Department of Pediatrics, Department of Pediatrics, Department of Pediatrics, Division of Cell Biology, Department of Developmental and Molecular Biology, Department of Internal Medicine II, Saban Research Institute of Childrens Hospital Los Angeles, Los Angeles, California 90027, USA
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homeostasis is thought to be maintained by a distinct pool of stem cells present in the adult thyroid gland. At least two types of thyroid stem cells have been described in the literature: the progenitor of follicular cells and the progenitor of C cells
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addition, in thyroid cancer, the PI3K/Akt pathway may also be activated by mutational inactivation of PTEN , a tumor-suppressor gene, or decreased/ absent expression of its mRNA or protein ( Bruni et al . 2000 ). Estrogen and thyroid stem cells There is
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is combined with conventional therapy it may be possible to eradicate even highly lethal cancers such as anaplastic thyroid carcinomas. Thyroid stem cells and CSCs identification The precise tissue microenvironment of thyroid CSCs remains unknown
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subpopulation of thyroid cancer cells are promising tools for future use in the study of thyroid stem cells and cancer. The mechanism of Wnt/TCF pathway activation by PPFP is unclear, except that it requires the PPARG DBD within PPFP. Activation of this pathway
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Helmholtz Zentrum München – German Research Center for Environmental Health GmbH, Clinical Cooperation Group ‘Personalized Radiotherapy in Head and Neck Cancer’, Neuherberg, Germany
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Helmholtz Zentrum München – German Research Center for Environmental Health GmbH, Clinical Cooperation Group ‘Personalized Radiotherapy in Head and Neck Cancer’, Neuherberg, Germany
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Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
Helmholtz Zentrum München – German Research Center for Environmental Health GmbH, Clinical Cooperation Group ‘Personalized Radiotherapy in Head and Neck Cancer’, Neuherberg, Germany
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Ukraine (1998–2000) . American Journal of Epidemiology 167 305 – 312 . ( https://doi.org/10.1093/aje/kwm301 ) Zane M Scavo E Catalano V Bonanno M Todaro M De Maria R Stassi G 2016 Normal vs cancer thyroid stem cells: the road to
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Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
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transcription factors and cellular production of the thyroid stem cell marker ALDH. Although the tumor cells retained sufficiently differentiated function to maintain normal thyroid function, the acquisition of stem-like features is likely to play an important