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Updated: Dec 28, 2025

Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
Published on: October 27, 2020
Ret Receptor Has Distinct Alterations and Functions in Breast Cancer
Albana Gattelli1,2, Nancy E Hynes3,4, Ignacio E Schor5,6
1CONICET-UBA, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), Ciudad Universitaria, C1428EGA CABA, Buenos Aires, Argentina. albanaga@fbmc.fcen.uba.ar.
Abstract:
Ret receptor tyrosine kinase is a proto-oncogene that participates in development of various cancers. Several independent studies have recently identified Ret as a key player in breast cancer. Although Ret overexpression and function have been under investigation, mainly in estrogen receptor positive breast cancer, a more comprehensive analysis of the impact of recurring Ret alterations in breast cancer is needed. This review consolidates the current knowledge of Ret alterations and their potential effects in breast cancer. We discuss and integrate data on Ret changes in different breast cancer subtypes and potential function in progression, as well as the participation of distinct Ret network signaling partners in these processes. We propose that it will be essential to define a shared molecular feature of tumors with alteration in Ret receptor, be this at the genetic level or via overexpression in order to design effective therapies to target the Ret pathway. Here we review experimental evidence from basic research and pre-clinical studies concentrating on Ret alterations as potential biomarkers for recurrence, and we discuss the possibility that targeting the Ret pathway might in the future become a treatment for breast cancer.
Insights
Ret alterations are crucial in breast cancer development. Targeting the Ret pathway, through genetic changes or overexpression, may offer new therapeutic strategies and biomarkers for recurrence.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Ret receptor tyrosine kinase (RTK) is a proto-oncogene implicated in various cancers.
- Recent studies highlight Ret's significant role in breast cancer, particularly in estrogen receptor-positive subtypes.
- A comprehensive understanding of Ret alterations in breast cancer is currently lacking.
Purpose of the Study:
- To consolidate current knowledge on Ret alterations and their effects in breast cancer.
- To analyze Ret changes across different breast cancer subtypes and their role in progression.
- To explore the involvement of Ret signaling network partners in breast cancer pathogenesis.
Main Methods:
- Review of experimental evidence from basic research.
- Analysis of pre-clinical studies focusing on Ret alterations.
- Integration of data on Ret genetic changes and overexpression.
Main Results:
- Ret alterations, including genetic changes and overexpression, are observed in various breast cancer subtypes.
- Ret signaling pathways and its network partners play a role in breast cancer progression.
- Ret alterations show potential as biomarkers for predicting recurrence.
Conclusions:
- Defining shared molecular features of Ret-altered tumors is essential for targeted therapy development.
- Targeting the Ret pathway presents a promising future therapeutic strategy for breast cancer.
- Further research into Ret alterations may lead to novel treatment options and improved patient outcomes.
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