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Abstract Title:

Anticancer effects ofβ-elemene in gastric cancer cells and its potential underlying proteins: a proteomic study.

Abstract Source:

Oncol Rep. 2014 Dec ;32(6):2635-47. Epub 2014 Sep 17. PMID: 25333415

Abstract Author(s):

Jun-Song Liu, Shi-Cai He, Zheng-Liang Zhang, Rui Chen, Lin Fan, Guang-Lin Qiu, Shuai Chang, Liang Li, Xiang-Ming Che

Article Affiliation:

Jun-Song Liu

Abstract:

Gastric cancer is a common malignancy with a poor prognosis.β-elemene is a broad-spectrum anticancer drug extracted from the traditional Chinese medicinal herb Curcuma wenyujin. In the present study, we investigated the anticancer effects of β-elemene in gastric cancer cells and the potential proteins involved. Human SGC7901 and MKN45 gastric cancer cellswere treated with different concentrations of β-elemene. Cell viability, clonogenic survival and apoptotic cell death were assessed. β-elemene inhibited viability and decreased clonogenic survival of gastric cancer cells in a dose-dependent manner. Apoptosis induction contributed to the anticancereffects. We then employed a proteomic method, isobaric tags for relative and absolute quantitation (iTRAQ), to detect the proteins altered by β-elemene. In total, 147 upregulated proteins and 86 downregulated proteins were identified in response to β-elemene treatment in SGC7901 gastric cancer cells. Among them, expression of p21-activated protein kinase‑interacting protein 1 (PAK1IP1), Bcl-2-associated transcription factor 1 (BTF) and topoisomerase 2-α (TOPIIα) were validated by western blot analyses and the trends were consistent with iTRAQ results. Top pathways involved in β-elemenetreatment in SGC7901 gastric cancer cells included ribosome signaling, peroxisome proliferator-activated receptors (PPARs) signaling pathway, regulation of actin cytoskeleton, phagosome, biosynthesis and metabolism of some amino acids. Collectively, our results suggest a promising therapeutic roleof β-elemene in gastric cancer. The differentially expressed proteins provide further insight into the potential mechanisms involved in gastric cancer treatment using β-elemene.

Study Type : In Vitro Study

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