Anticancer Efficacy of the Combination of Berberine and PEGylated Liposomal Doxorubicin in Meth A Sarcoma-Bearing Mice

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  • Yahuafai Jantana
    Natural Products and Integrative Medicine Research Section, Research Division, National Cancer Institute
  • Asai Tomohiro
    Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences
  • Oku Naoto
    Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences
  • Siripong Pongpun
    Natural Products and Integrative Medicine Research Section, Research Division, National Cancer Institute

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<p>Berberine, the main isoquinoline alkaloid obtained from traditional plants, e.g., Berberis, Coptis, Coscinium spps., etc., is known to exhibit anticancer activity in vitro and in vivo. In this study, the anticancer potential of berberine combined with PEGylated liposomal doxorubicin (polyethylene glycol (PEG)-lip-DOX) was investigated. At first, the effect of berberine on endothelial cells was examined in vitro by use of human umbilical vein endothelial cells (HUVECs): Berberine inhibited HUVEC growth with an IC50 at 24 h of about 144 µg/mL and that at 72 h of about 29 µg/mL. In contrast, less than 50 µg/mL berberine inhibited the vascular endothelial growth factor (VEGF) expression to some extent after a 24-h incubation, suggesting that berberine suppressed angiogenic action under the condition of little cytotoxicity. Next, the in vivo anticancer activity of the combination of berberine (intraperitoneally (i.p.)) and PEG-lip-DOX (intravenously (i.v.)) was examined in Meth A sarcoma-transplanted BALB/c mice. The results showed that either berberine or PEG-lip-DOX exhibited antiproliferative activity against Meth A cells. Moreover, treatment with the combination of berberine and PEG-lip-DOX suppressed the tumor growth more strongly than that with berberine or PEG-lip-DOX alone. Based on these findings, the combination cancer chemotherapy with berberine and PEGylated liposomal doxorubicin may be beneficial for the treatment of cancer.</p>

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