Article Publish Status: FREE
Abstract Title:

Cardamonin reduces chemotherapy-enriched breast cancer stem-like cells in vitro and in vivo.

Abstract Source:

Oncotarget. 2015 Oct 17. Epub 2015 Oct 17. PMID: 26506421

Abstract Author(s):

Deyong Jia, Yuan Tan, Huijuan Liu, Sarah Ooi, Li Li, Kathryn Wright, Steffany Bennett, Christina L Addison, Lisheng Wang

Article Affiliation:

Deyong Jia


The failure of cytotoxic chemotherapy in breast cancers has been closely associated with the presence of drug resistant cancer stem cells (CSCs). Thus, screening for small molecules that selectively inhibit growth of CSCs may offer great promise for cancer control, particularly in combination with chemotherapy. In this report, we provide the first demonstration that cardamonin, a small molecule, selectively inhibits breast CSCs that have been enriched by chemotherapeutic drugs. In addition, cardamonin also sufficiently prevents the enrichment of CSCs when simultaneously used with chemotherapeutic drugs. Specifically, cardamonin effectively abolishes chemotherapeutic drug-induced up-regulation of IL-6, IL-8 and MCP-1 and activation of NF-κB/IKBα and Stat3. Furthermore, in a xenograft mouse model, co-administration of cardamonin and the chemotherapeutic drug doxorubicin significantly retards tumor growth and simultaneously decreases CSC pools in vivo. Since cardamonin has been found in some herbs, this work suggests a potential newapproach for the effective treatment of breast CSCs by administration of cardamonin either concurrent with or after chemotherapeutic drugs.

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