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Aloperine induces G2/M phase cell cycle arrest and apoptosis in HCT116 human colon cancer cells

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Aloperine (ALO) is a quinolizidine alkaloid extracted from the leaves of Sophora alopecuroides (S. alopecuroides) and possesses anti-inflammatory, anti-allergenic, antitumor, and antiviral effects. In this study, when compared with seven other types of alkaloids extracted from S. alopecuroides, ALO treatment produced the most potent effects against HCT116 colon cancer cell types. ALO inhibited proliferation and induced apoptosis in HCT116 cells in a dose- and time-dependent manner as detected by MTT, clonogenic survival, and flow cytometric assays. Results of the western blot analysis and qPCR revealed that ALO increased the protein and mRNA of Bax and decreased Bcl-2 via the mitochondrial death pathway. In addition, ALO induced cell cycle arrest at the G2/M phase with a concomitant increase in p21 and p53 and a decrease in cyclin D1 and B1. ALO also inhibited phosphatidylinositol 3-kinase/Akt and JAK/Stat3. Generally, ALO exerted a significant anti-proliferative effect via apoptotic and cell cycle arrest induction in HCT116 cells. These results suggested that ALO should be investigated further as an agent of chemotherapeutic activity in human colon cancer.
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Document Type: Research Article

Affiliations: 1: School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China 2: Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China 3: Department of Pharmacy, Hunan Loudi Central Hospital, Loudi, Hunan 417000, P.R. China

Publication date: June 1, 2014

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  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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