國家衛生研究院 NHRI:Item 3990099045/2593
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    题名: DC-81-Indole conjugate agent induces mitochondria mediated apoptosis in human melanoma A375 cells
    作者: Hu, WP;Yu, HS;Sung, PJ;Tsai, FY;Shen, YK;Chang, LS;Wang, JJ
    贡献者: Division of Environmental Health and Occupational Medicine
    摘要: DC-81, an antitumor antibiotic produced by the Streptomyces species, belongs to pyrrolo[2,1-c] [1,4]benzodiazepine (PBD), which are potent inhibitors of nucleic acid synthesis. We previously reported an efficient synthesis of PBD hybrids linked with indole carboxylates. This is the first demonstration on the mechanism of the anticancer effect of PBD hybrid (IN6CPBD) agent on human melanoma A375 cells. IN6CPBD-treated cells exhibited higher cytotoxicity than DC-81 and displayed several features of apoptosis, including an increase in the sub-G1 population, a significantly increased annexin V binding, a degradation of caspase-3, and poly (ADP-ribose) polymerase (PARP) cleavage. Because degradative changes associated with apoptosis are often preceded by the disruption of mitochondrial function, the assessment of mitochondrial function in IN6CPBD-treated cells is worthy of investigation. Our data revealed that treatment of A375 cells with IN6CPBD resulted in the loss of mitochondrial membrane potential (Delta Psi(mt)), a decrease in intracellular pH (pHi), a reduction of ATP synthesis, increased reactive oxygen species (ROS) generation, and cytochrome c release. Collectively, our studies indicate that IN6CPBD induces apoptosis in A375 cells through a mitochondrial dysfunction pathway, leading to caspase-3 substrate PARP cleavage and subsequent apoptotic cell death.
    关键词: Chemistry, Medicinal;Chemistry, Multidisciplinary;Toxicology
    日期: 2007-06
    關聯: Chemical Research in Toxicology. 2007 Jun;20(6):905-912.
    Link to: http://dx.doi.org/10.1021/tx6003387
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0893-228X&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000247304200008
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34447127577
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