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Stephania delavayi Diels. inhibits breast carcinoma proliferation through the p38 MAPK/NF-κB/COX-2 pathway

Dae-Hun Park1, Hong De Xu, Jaegal Shim

  • 1Toxicology Center, Korea Institute of Toxicology, Yuseong, Daejeon 305-343, Republic of Korea.

Oncology Reports
|July 5, 2011
PubMed

Insights

Stephania delavayi Diels. extract shows potential as an anticancer agent by suppressing breast cancer cell proliferation. It modulates p38 MAPK, NF-κB, and COX-2 signaling pathways, suggesting targeted therapy with low toxicity.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • The nuclear factor κB (NF-κB)/inhibitor of κ kinase-β (IKKβ) pathway is crucial in tumor promotion.
  • Breast cancer cells like MDA-MB-231 exhibit constitutive NF-κB phosphorylation and express COX-2.
  • Non-specific inhibitors of IKKβ and NF-κB are used to impede tumor progression.

Purpose of the Study:

  • To investigate the anticancer mechanisms of Stephania delavayi Diels. (S. delavayi Diels.) extract.
  • To determine the effects of S. delavayi Diels. extract on p38 MAPK, NF-κB, and COX-2 signaling in breast cancer.
  • To evaluate S. delavayi Diels. as a potential therapeutic agent for breast cancer.

Main Methods:

  • Treatment of breast cancer cell lines (MDA-MB-231, MCF-7) with S. delavayi Diels. extract.
  • Assessment of cell proliferation, cell death, and modulation of signaling pathways.
  • Analysis of p38 MAPK phosphorylation, NF-κB phosphorylation, and COX-2 expression.

Main Results:

  • S. delavayi Diels. extract suppressed proliferation of MDA-MB-231 and MCF-7 cells by inducing cell death.
  • The extract stimulated p38 MAPK phosphorylation.
  • NF-κB phosphorylation and COX-2 expression were reduced in a dose- and time-dependent manner.

Conclusions:

  • S. delavayi Diels. extract demonstrates anticancer properties against breast carcinoma.
  • The extract's mechanism involves modulation of the p38 MAPK/NF-κB/COX-2 signaling pathway.
  • S. delavayi Diels. may serve as a targeted, low-toxicity anticancer therapeutic agent.

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