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Chemical, Physical and Biological Triggers of Evolutionary Conserved Bcl-xL-Mediated Apoptosis. Cancers (Basel) 2020; 12:cancers12061694. [PMID: 32630560 PMCID: PMC7352625 DOI: 10.3390/cancers12061694] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 11/18/2022] Open
Abstract
Background: The evidence that pan-Bcl-2 or Bcl-xL-specific inhibitors prematurely kill virus-infected or RNA/DNA-transfected cells provides rationale for investigating these apoptotic inducers further. We hypothesized that not only invasive RNA or DNA (biological factors) but also DNA/RNA-damaging chemical or physical factors could trigger apoptosis that have been sensitized with pan-Bcl-2 or Bcl-xL-specific agents; Methods: We tested chemical and physical factors plus Bcl-xL-specific inhibitor A-1155463 in cells of various origins and the small roundworms (C. elegans); Results: We show that combination of a A-1155463 along with a DNA-damaging agent, 4-nitroquinoline-1-oxide (4NQO), prematurely kills cells of various origins as well as C. elegans. The synergistic effect is p53-dependent and associated with the release of Bad and Bax from Bcl-xL, which trigger mitochondrial outer membrane permeabilization. Furthermore, we found that combining Bcl-xL-specific inhibitors with various chemical compounds or physical insults also induced cell death; Conclusions: Thus, we were able to identify several biological, chemical and physical triggers of the evolutionarily conserved Bcl-xL-mediated apoptotic pathway, shedding light on strategies and targets for novel drug development.
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Shamsi-Sani M, Shirini F, Abedini M, Seddighi M. Synthesis of benzimidazole and quinoxaline derivatives using reusable sulfonated rice husk ash (RHA-SO3H) as a green and efficient solid acid catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2075-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Gao C, Li B, Zhang B, Sun Q, Li L, Li X, Chen C, Tan C, Liu H, Jiang Y. Synthesis and biological evaluation of benzimidazole acridine derivatives as potential DNA-binding and apoptosis-inducing agents. Bioorg Med Chem 2015; 23:1800-7. [PMID: 25778766 DOI: 10.1016/j.bmc.2015.02.036] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/13/2015] [Accepted: 02/17/2015] [Indexed: 01/31/2023]
Abstract
The discovery of new effective DNA-targeted antitumor agent is needed because of their clinical significance. As acridines can intercalate into DNA and benzimidazoles have the ability to bind in the DNA minor groove, a series of novel benzimidazole acridine derivatives were designed and synthesized to be new DNA-targeted compounds. MTT assay indicated that most of the synthesized compounds displayed good antiproliferative activity, among which compound 8l demonstrated the highest activity against both K562 and HepG-2 cells. Further experiments showed that 8l displayed good DNA-binding capability and inhibited topoisomerase I activity. Moreover, compound 8l could induce apoptosis in K562 cell lines through mitochondrial pathway. These data suggested that compound 8l might be potential as new DNA-binding and apoptosis-inducing antitumor agents.
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Affiliation(s)
- Chunmei Gao
- Tsinghua University, Department of Chemistry, Beijing 100084, PR China; The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China; National & Local United Engineering Lab for Personalized Anti-tumor Drugs, The Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China.
| | - Bin Li
- Tsinghua University, Department of Chemistry, Beijing 100084, PR China; The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China
| | - Bin Zhang
- Tsinghua University, Department of Chemistry, Beijing 100084, PR China; The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China
| | - Qinsheng Sun
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China
| | - Lulu Li
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China
| | - Xi Li
- Tsinghua University, Department of Chemistry, Beijing 100084, PR China; The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China
| | - Changjun Chen
- Tsinghua University, Department of Chemistry, Beijing 100084, PR China; The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China
| | - Chunyan Tan
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China; National & Local United Engineering Lab for Personalized Anti-tumor Drugs, The Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China
| | - Hongxia Liu
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China; National & Local United Engineering Lab for Personalized Anti-tumor Drugs, The Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China
| | - Yuyang Jiang
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, Shenzhen 518055, PR China; National & Local United Engineering Lab for Personalized Anti-tumor Drugs, The Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China; School of Medicine, Tsinghua University, Beijing 100084, PR China.
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