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Isolation and Functional Assessment of Human Breast Cancer Stem Cells from Cell and Tissue Samples
07:03

Isolation and Functional Assessment of Human Breast Cancer Stem Cells from Cell and Tissue Samples

Published on: October 2, 2020

New insights into signalling networks regulating breast cancer stem cells

Alexander Swarbrick, Roger J Daly

    Breast Cancer Research : BCR
    |September 25, 2012
    PubMed

    Insights

    Src homology 2 domain-containing protein tyrosine phosphatase 2 (Shp2) is crucial for breast tumor-initiating cells. New downstream effectors regulate invasion and self-renewal, offering therapeutic targets for breast cancer.

    Area of Science:

    • Oncology
    • Molecular Biology
    • Cell Biology

    Background:

    • Breast tumor-initiating cells (BTICs) are critical for tumor recurrence and metastasis.
    • The role of specific signaling pathways in BTIC maintenance remains incompletely understood.

    Purpose of the Study:

    • To investigate the role of Src homology 2 domain-containing protein tyrosine phosphatase 2 (Shp2) in maintaining breast tumor-initiating cells.
    • To identify novel downstream effectors of Shp2 that regulate BTIC functions.

    Main Methods:

    • Utilized molecular biology techniques to study Shp2 signaling in breast cancer models.
    • Investigated the function of identified downstream targets in cellular invasion and self-renewal assays.

    Main Results:

    • Shp2 is essential for the maintenance of breast tumor-initiating cells.
    • Identified c-Myc, ZEB1, and LIN28B as novel downstream effectors regulated by Shp2.
    • These effectors modulate cellular invasion and self-renewal capabilities.

    Conclusions:

    • Shp2 signaling is a key regulator of breast tumor-initiating cell biology.
    • Targeting Shp2 or its downstream effectors may offer a novel therapeutic strategy for breast cancer.

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