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Artemisinin Derivatives Inactivate Cancer-associated Fibroblasts Through Suppressing TGF-β Signaling in Breast Cancer

Overview
Publisher Biomed Central
Specialty Oncology
Date 2018 Nov 28
PMID 30477536
Citations 42
Authors
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Abstract

Background: Cancer-associated fibroblasts (CAFs) are activated fibroblasts associated with cancer. They have an important role in tumor growth and metastasis. Artemisinin (ART) is a sesquiterpene lactone extracted from Chinese herb qinghao, and artemether (ARM), artesunate (ARS) and dihydroartemisinin (DHA) were synthesized derivatives of artemisinin, which also have anti-malarial and anti-cancer effects such as artemisinin.

Methods: In this study, we investigated the in-vitro and in-vivo effects of artemisinin derivatives on inactivating cancer-associated fibroblasts and uncovered its underlying mechanism.

Results: We demonstrated that ARS and DHA could revert L-929-CAFs and CAFs from activated to inactivated state in vitro. Mechanically, ARS and DHA could suppress TGF-β signaling to inhibit activation of L-929-CAFs and CAFs, and decreased interaction between tumor and tumor microenvironment. The results showed that ARS and DHA could suppress CAFs-induced breast cancer growth and metastasis in the orthotopic model. Conformably, ARS and DHA suppressed TGF-β signaling to inactivate cancer-associated fibroblasts and inhibit cancer metastasis in vivo.

Conclusions: Artemisinin derivatives are potential therapeutic agents for the treatment of breast cancer.

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