Proteomics

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Adiponectin influences the behavior of stem cells in hormone-resistant breast cancer


ABSTRACT: Overcoming endocrine-resistance is the major challenge in treating Estrogen receptor (ER)-positive breast cancer. Breast Cancer Stem Cells (BCSCs) are blamed to be the driving force behind poor clinical outcomes and therapeutic resistance. Tumor microenvironment (TME) exerts a selective pressure on the tumor, supporting BCSCs behavior. The most prevalent cellular component of breast TME is represented by adipocytes, which secrete reduced levels of adiponectin in obesity, promoting ERα-positive breast cancer growth and progression. We examined the impact of low adiponectin levels on the enrichment of BCSC subpopulations and the molecular mechanisms by which this may contribute to hormone-resistance in breast cancer.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Epithelial Cell, Cell Culture

DISEASE(S): Breast Cancer

SUBMITTER: Marco Gaspari  

LAB HEAD: Marco Gaspari

PROVIDER: PXD059964 | Pride | 2025-05-07

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
MCF7_TR_A5_2.raw Raw
MCF7_TR_A5_3.raw Raw
MCF7_TR_A5_4.raw Raw
MCF7_TR_C2.raw Raw
MCF7_TR_C3.raw Raw
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Publications


In the breast tumor microenvironment (TME), adipocytes exert a selective pressure on the behavior of breast cancer stem cells (BCSCs), which are involved in endocrine therapy resistance. In obesity, adipocytes secrete reduced levels of adiponectin, which promotes the growth and progression of ERα-positive breast cancer (BC). Here, we examined how low adiponectin levels affect the enrichment of the BCSC subpopulation and the mechanisms contributing to the maintenance of endocrine therapy resistan  ...[more]

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