Cited by 168Cell death mechanisms and regulationMitochondrial Function and PathologyCardiac Ischemia and Reperfusion

Voltage-dependent anion channel 1-based peptides interact with Bcl-2 to prevent antiapoptotic activity

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Arbel, Nir, Shoshan-Barmatz, Varda·2010·Journal of Biological Chemistry

Abstract

The antiapoptotic proteins of the Bcl-2 family are expressed at high levels in many types of cancer. However, the mechanism by which Bcl-2 family proteins regulate apoptosis is not fully understood. Here, we demonstrate the interaction of Bcl-2 with the outer mitochondrial membrane protein, voltage-dependent anion channel 1 (VDAC1). A direct interaction of Bcl-2 with bilayer-reconstituted purified VDAC was demonstrated, with Bcl-2 decreasing channel conductance. Expression of Bcl-2-GFP prevented apoptosis in cells expressing native but not certain VDAC1 mutants. VDAC1 sequences and amino acid residues important for interaction with Bcl-2 were defined through site-directed mutagenesis. Synthetic peptides corresponding to the VDAC1 N-terminal region and selected sequences bound specifically, in a concentration- and time-dependent manner, to immobilized Bcl-2, as revealed by the real-time surface plasmon resonance. Moreover, expression of the VDAC1-based peptides in cells over-expressing Bcl-2 prevented Bcl-2-mediated protection against staurosporine-induced apoptotic cell death. Similarly, a cell-permeable VDAC1-based synthetic peptide was also found to prevent Bcl-2-GFP-mediated protection against apoptosis. These results point to Bcl-2 as promoting tumor cell survival through binding to VDAC1, thereby inhibiting cytochrome c release and apoptotic cell death. Moreover, these findings suggest that interfering with the binding of Bcl-2 to mitochondria by VDAC1-based peptides may serve to potentiate the efficacy of conventional chemotherapeutic agents.

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Crossref · 10.1074/jbc.m109.082990

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  • The N-terminal domain of VDAC1 interacts with several Bcl-2 family proteins that regulate apoptosis and is involved in gating the channel.

    “The N-terminal domain of VDAC1 interacts with several Bcl-2 family proteins that regulate apoptosis and is involved in gating the channel [96,97,98,99,100,101].”

    From Mitochondrial Oxidative and Nitrosative Stress and Alzheimer Disease (2020) · cites this paper as [100]

    The Discussion (page unavailable) identifies the VDAC1 N-terminal region as a Bcl-2 interaction site and says evidence suggests it is involved in voltage gating. The paper also discusses VDAC1 interactions with Bax and Bcl-xL, but does not establish that the N-terminal domain itself interacts with several Bcl-2 family proteins. (LLM, conf=0.84)

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Research works printed but not linked: 6

  1. Shimizu, S., Konishi, A., Kodama, T., and Tsujimoto, Y. (2000) Proc. Natl. Acad. Sci. U.S.A. 97, 3100 -3105
  2. Halestrap, A. P., Doran, E., Gillespie, J. P., and O'Toole, A. (2000) Biochem. Soc. Trans. 28, 170 -177
  3. Bayrhuber, M., Meins, T., Habeck, M., Becker, S., Giller, K., Villinger, S., Vonrhein, C., Griesinger, C., Zweckstetter, M., and Zeth, K. (2008) Proc. Natl. Acad. Sci. U.S.A. 105, 15370 -15375
  4. Ujwal, R., Cascio, D., Colletier, J. P., Faham, S., Zhang, J., Toro, L., Ping, P., and Abramson, J. (2008) Proc. Natl. Acad. Sci. U.S.A. 105, 17742-17747
  5. Abu-Hamad, S., Sivan, S., and Shoshan-Barmatz, V. (2006) Proc. Natl. Acad. Sci. U.S.A. 103, 5787-5792
  6. Shimizu, S., and Tsujimoto, Y. (2000) Proc. Natl. Acad. Sci. U.S.A. 97, 577-582

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Authors
Arbel, N., & Shoshan-Barmatz, V.
Affiliations
Ben-Gurion University of the Negev (IL)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2010-02
Volume
285
Issue
9
Pages
6053-6062
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1998225262
Cited by
168
References
68
Citations by year
2026: 5 · 2025: 8 · 2024: 8 · 2023: 5 · 2022: 8 · 2021: 11 · 2020: 14 · 2019: 8 · 2018: 18 · 2017: 18 · 2016: 11 · 2015: 9 · 2014: 15 · 2013: 9 · 2012: 11
FWCI
2.82
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Israel Science Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
Keywords
VDAC1, Bcl-2, Bcl-2 family proteins, apoptosis, anti-apoptotic effects, mitochondrial outer membrane, cytochrome c release, staurosporine-induced apoptosis, tumor cell survival, chemosensitization, channel conductance
MeSH terms
Animals, Cell Line, Electric Conductivity, Electrophysiology, Humans, Mitochondria, Peptide Fragments, Protein Binding, Sheep, Mutagenesis, Site-Directed, Apoptosis, Proto-Oncogene Proteins c-bcl-2, Surface Plasmon Resonance, Voltage-Dependent Anion Channel 1

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