Which Are the Cells of Origin in Merkel Cell Carcinoma?

Merkel cell carcinoma (MCC), a highly aggressive skin tumour with increasing incidence, is associated with the newly discovered Merkel cell polyomavirus (MCPyV). Studies on MCC and MCPyV as well as other risk factors have significantly increased our knowledge of MCC pathogenesis, but the cells of or...

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Main Authors: Thomas Tilling, Ingrid Moll
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Skin Cancer
Online Access:http://dx.doi.org/10.1155/2012/680410
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author Thomas Tilling
Ingrid Moll
author_facet Thomas Tilling
Ingrid Moll
author_sort Thomas Tilling
collection DOAJ
description Merkel cell carcinoma (MCC), a highly aggressive skin tumour with increasing incidence, is associated with the newly discovered Merkel cell polyomavirus (MCPyV). Studies on MCC and MCPyV as well as other risk factors have significantly increased our knowledge of MCC pathogenesis, but the cells of origin, which could be important targets in future therapies, are still unknown. Merkel cells (MCs), the neuroendocrine cells of the skin, were believed to be at the origin of MCC due to their phenotypic similarities. However, for several reasons, for example, heterogeneous differentiation of MCCs and postmitotic character of MCs, it is not very likely that MCC develops from differentiated MCs. Skin stem cells, probably from the epidermal lineage, are more likely to be cells of origin in MCC. Future studies will have to address these questions more directly in order to identify the physiological cells which are transformed to MCC cells.
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spelling doaj-art-82fea11f7e924ad593e5f362ce25ab4b2025-02-03T01:31:31ZengWileyJournal of Skin Cancer2090-29052090-29132012-01-01201210.1155/2012/680410680410Which Are the Cells of Origin in Merkel Cell Carcinoma?Thomas Tilling0Ingrid Moll1Department of Dermatology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, GermanyDepartment of Dermatology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, GermanyMerkel cell carcinoma (MCC), a highly aggressive skin tumour with increasing incidence, is associated with the newly discovered Merkel cell polyomavirus (MCPyV). Studies on MCC and MCPyV as well as other risk factors have significantly increased our knowledge of MCC pathogenesis, but the cells of origin, which could be important targets in future therapies, are still unknown. Merkel cells (MCs), the neuroendocrine cells of the skin, were believed to be at the origin of MCC due to their phenotypic similarities. However, for several reasons, for example, heterogeneous differentiation of MCCs and postmitotic character of MCs, it is not very likely that MCC develops from differentiated MCs. Skin stem cells, probably from the epidermal lineage, are more likely to be cells of origin in MCC. Future studies will have to address these questions more directly in order to identify the physiological cells which are transformed to MCC cells.http://dx.doi.org/10.1155/2012/680410
spellingShingle Thomas Tilling
Ingrid Moll
Which Are the Cells of Origin in Merkel Cell Carcinoma?
Journal of Skin Cancer
title Which Are the Cells of Origin in Merkel Cell Carcinoma?
title_full Which Are the Cells of Origin in Merkel Cell Carcinoma?
title_fullStr Which Are the Cells of Origin in Merkel Cell Carcinoma?
title_full_unstemmed Which Are the Cells of Origin in Merkel Cell Carcinoma?
title_short Which Are the Cells of Origin in Merkel Cell Carcinoma?
title_sort which are the cells of origin in merkel cell carcinoma
url http://dx.doi.org/10.1155/2012/680410
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