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Abstract Title:

The Antitumor Mechanism of Paeonol on CXCL4/CXCR3-B Signals in Breast Cancer Through Induction of Tumor Cell Apoptosis.

Abstract Source:

Cancer Biother Radiopharm. 2018 Aug ;33(6):233-240. Epub 2018 May 30. PMID: 29847158

Abstract Author(s):

Roland O Saahene, Jianjie Wang, Mo-Lin Wang, Elvis Agbo, Dezhi Pang

Article Affiliation:

Roland O Saahene

Abstract:

BACKGROUND: Paeonol, a phenolic component from the root bark of Paeonia moutan, has been identified to possess antitumor effects. However, the effect of paeonol and the mechanism of CXCL4/CXCR3-B signals in paeonol-induced breast cancer cell remain unknown.

MATERIALS AND METHODS: After MDA-MB-231 cells were pretreated with paeonol or DMSO, the proliferation activity was detected by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide), Hoechst, Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), and Annexin-V/propidium iodide staining flow cytometry. Western blot and immunohistochemistry of human breast cancer and noncancerous tissues were performed to determine the molecular alteration of CXCL4/CXCR3-B signals.

RESULTS: Compared with the control, paeonol-treated breast cancer cells had low proliferation activity and high apoptotic index, indicating that paeonol induces breast cancer cell apoptosis. Western blot and immunohistochemistry showed that paeonol increased CXCR3-B signal, downregulated CXCL4, heme oxygenase (HO-1) with a corresponding increased BACH1, and decreased nuclear factor E2-related factor 2 (Nrf2).

CONCLUSIONS: Thus, CXCL4/CXCR3-B may be involved in the mechanism of apoptosis induced by paeonol in breast cancer cells by regulating the expression of BACH1 and Nrf2 to downregulating HO-1 and promote apoptosis. Therefore, the authors suggest paeonol has a significant growth inhibitory effect on breast cancer cells, which may be related to the induction of apoptosis.

Study Type : In Vitro Study

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Sayer Ji
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