The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
The HIV-1 Viral Protein R Induces Apoptosis via a Direct Effect on the Mitochondrial Permeability Transition Pore
Open accessAbstract
Viral protein R (Vpr) encoded by HIV-1 is a facultative inducer of apoptosis. When added to intact cells or purified mitochondria, micromolar and submicromolar doses of synthetic Vpr cause a rapid dissipation of the mitochondrial transmembrane potential (ΔΨm), as well as the mitochondrial release of apoptogenic proteins such as cytochrome c or apoptosis inducing factor. The same structural motifs relevant for cell killing are responsible for the mitochondriotoxic effects of Vpr. Both mitochondrial and cytotoxic Vpr effects are prevented by Bcl-2, an inhibitor of the permeability transition pore complex (PTPC). Coincubation of purified organelles revealed that nuclear apoptosis is only induced by Vpr when mitochondria are present yet can be abolished by PTPC inhibitors. Vpr favors the permeabilization of artificial membranes containing the purified PTPC or defined PTPC components such as the adenine nucleotide translocator (ANT) combined with Bax. Again, this effect is prevented by addition of recombinant Bcl-2. The Vpr COOH terminus binds purified ANT, as well as a molecular complex containing ANT and the voltage-dependent anion channel (VDAC), another PTPC component. Yeast strains lacking ANT or VDAC are less susceptible to Vpr-induced killing than control cells yet recover Vpr sensitivity when retransfected with yeast ANT or human VDAC. Hence, Vpr induces apoptosis via a direct effect on the mitochondrial PTPC.
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Citations
Cites
Molecular characterization of mitochondrial apoptosis-inducing factor
Susin, S. A., Lorenzo, H. K., Zamzami, N., Marzo, I., Snow, B. E., Brothers, G. M., Mangion, J., Jacotot, E., Costantini, P., Loeffler, M., et al. (1999) · Nature · doi:10.1038/17135 · Cited by 4,060
Self-citationBax and Adenine Nucleotide Translocator Cooperate in the Mitochondrial Control of Apoptosis
Marzo, I., Brenner, C., Zamzami, N., Jürgensmeier, J. M., Susin, S. A., Vieira, H. L. A., Prévost, M.-C., Xie, Z., Matsuyama, S., Reed, J. C., et al. (1998) · Science · doi:10.1126/science.281.5385.2027 · Cited by 1,168
Self-citation
Cited by
Mitochondrial membrane permeabilization in cell death
Kroemer, G., Galluzzi, L., & Brenner, C. (2007) · Physiological Reviews · doi:10.1152/physrev.00013.2006 · Cited by 3,598
Self-citationMitochondrial control of cell death
Kroemer, G., & Reed, J. C. (2000) · Nature Medicine · doi:10.1038/74994 · Cited by 3,103
Self-citationOkuda, M., Li, K., Beard, M. R., Showalter, L. A., Scholle, F., Lemon, S. M., & Weinman, S. A. (2002) · Gastroenterology · doi:10.1053/gast.2002.30983 · Cited by 926
Matrix Protein 2 of Influenza A Virus Blocks Autophagosome Fusion with Lysosomes
Gannagé, M., Dormann, D., Albrecht, R., Dengjel, J., Torossi, T., Rämer, P. C., Lee, M., Strowig, T., Arrey, F., Conenello, G., et al. (2009) · Cell Host & Microbe · doi:10.1016/j.chom.2009.09.005 · Cited by 526
Jan, G., Belzacq, A.-S., Haouzi, D., Rouault, A., Métivier, D., Kroemer, G., & Brenner, C. (2002) · Cell Death & Differentiation · doi:10.1038/sj.cdd.4400935 · Cited by 385
Metadata
- Authors
- Jacotot, E., Ravagnan, L., Loeffler, M., Ferri, K. F., Vieira, H. L. A., Zamzami, N., Costantini, P., Druillennec, S., Hoebeke, J., Briand, J. P., Irinopoulou, T., Daugas, E., Susin, S. A., Cointe, D., Xie, Z. H., Reed, J. C., Roques, B. P., & Kroemer, G.
- Venue
- The Journal of Experimental Medicine
- Publisher
- Rockefeller University Press
- Published
- 2000-01-03
- Volume
- 191
- Issue
- 1
- Pages
- 33-46
- ISSN
- 0022-1007 (ISSN-L)
- 1540-9538
- OpenAlex
- W2171662092
- Cited by
- 450
- References
- 2
- FWCI
- 13.18
- Type
- journal article
- Language
- en
- Open access
- bronze
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