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- Williams, D., et al.
(författare)
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On the Origin of Cells and Derivation of Thyroid Cancer: C Cell Story Revisited
- 2016
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Ingår i: European Thyroid Journal. - : Bioscientifica. - 2235-0640 .- 2235-0802. ; 5:2, s. 79-93
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Tidskriftsartikel (refereegranskat)abstract
- We will highlight and put into perspective new lineage tracing data from genetic studies in mice indicating that the genuine progenitors to C cells arise in the endoderm germ layer. This overturns the current concept of a neural crest origin of thyroid C cells referred to in every textbook and dedicated paper to this very day. As will become apparent, except for a single experiment, the neural crest theory has little or no support when the evolution and development of calcitonin-producing cells in the entire chordate family are considered. Instead, a unifying origin of all cells of the ultimobranchial bodies reopens questions on the histogenesis of certain thyroid pathologies previously difficult to explain. On this aspect, medullary thyroid cancer shows a stronger connection to gut neuroendocrine tumours than previously recognized. It is envisaged that novel factors implicated in C cell-derived tumour growth and progression will be discovered as the mechanisms that regulate lineage expansion of embryonic C cell precursors from pharyngeal endoderm are uncovered. We will not discuss why C cells go to the bother of burying themselves in the thyroid - this remains a mystery. (C) 2016 European Thyroid Association Published by S. Karger AG, Basel
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