Τρίτη 21 Ιανουαρίου 2020

[Biology and signaling pathways involved in the oncogenesis of desmoid tumors].

[Biology and signaling pathways involved in the oncogenesis of desmoid tumors].:

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[Biology and signaling pathways involved in the oncogenesis of desmoid tumors].

Bull Cancer. 2020 Jan 16;:

Authors: Salas S, Chibon F

Abstract

Desmoid tumors (TDs) are derived from mesenchymal stem cells and their pathogenesis is strongly linked to the Wingless/Wnt cascade where the deregulation of β-catenin plays a major role. A mutation of the CTNNB1 encoding β-catenin is found in the majority of sporadic TD cases and constitutional mutations of APC have been described in heritable forms in patients with familial adenomatous polyposis (FAP). Estrogens could also play a role in pathogenesis and this is the basis for the use of hormone therapy. Other signaling pathways have been involved in the development of TDs such as Notch, Hedgehog, JAK/STAT, PI3 Kinase/AKT and mTOR. Metalloproteases are expressed in TDs and play a role in invasiveness. TGF-ß, as a growth factor, stimulates the transcriptional activity of β-catenin. Future studies will need to focus on better describing and understanding the immune environment of TDs. One of the major difficulties for the experimental study of TDs is the virtual absence of a preclinical model, either in vitro or in vivo. This is partly why the interactions between the different signaling pathways presented here and their consequences for the development of TDs are still poorly understood.

PMID: 31955867 [PubMed - as supplied by publisher]

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