Abstract：
:The epithelial-to-mesenchymal transition (EMT) is a reversible process comprised of various subprograms via which epithelial cells reduce their intercellular adhesions and proliferative capacity while gaining a mesenchymal phenotype with increased migratory and invasive properties. This process has been well described in several carcinomas, which are cancers of epithelial origin, and is crucial to metastatic tumor cell dissemination and drug resistance. In contrast, the precise role of EMT-related processes in tumors originating from mesenchymal tissues, such as bone and soft-tissues sarcomas, is still largely unclear. In fact, although the existence of the EMT in sarcomas appears paradoxical because these cancers are, by definition, mesenchymal ab initio, accumulating evidence suggests that many sarcomas can undergo EMT-related processes, which may be associated with aggressive clinical behavior. These processes may be especially operative in certain sarcoma subtypes, such as carcinosarcomas displaying a biphenotypic morphology with characteristics of both mesenchymal and epithelial tumors. In this review, we discuss findings regarding the potential existence of EMT-related processes in sarcomas and propose that sarcomas can reside in a metastable state, enabling them to become either more mesenchymal or epithelial under specific conditions, which likely has important clinical implications. Cancer Res; 77(17); 4556-61. ©2017 AACR.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Sannino G,Marchetto A,Kirchner T,Grünewald TGPdoi
10.1158/0008-5472.CAN-17-0032subject
Has Abstractpub_date
2017-09-01 00:00:00pages
4556-4561issue
17eissn
0008-5472issn
1538-7445pii
0008-5472.CAN-17-0032journal_volume
77pub_type
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