The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Release of OPA1 during Apoptosis Participates in the Rapid and Complete Release of Cytochrome c and Subsequent Mitochondrial Fragmentation
Open accessAbstract
Mitochondria are important participants in apoptosis, releasing cytochrome c into the cytoplasm and undergoing extensive fragmentation. However, mechanisms underlying these processes remain unclear. Here, we demonstrate that cytochrome c release during apoptosis precedes mitochondrial fragmentation. Unexpectedly, OPA1, a dynamin-like GTPase of the mitochondrial intermembrane space important for maintaining cristae structure, is co-released with cytochrome c. To mimic the loss of OPA1 occurring after its release, we knocked down OPA1 expression using RNA interference. This triggered structural changes in the mitochondrial cristae and caused increased fragmentation by blocking mitochondrial fusion. Because cytochrome c is mostly sequestered within cristae folds but released rapidly and completely during apoptosis, we examined the effect of OPA1 loss on cytochrome c release, demonstrating that it is accelerated. Thus, our results suggest that an initial mitochondrial leak of OPA1 leads to cristae structural alterations and exposure of previously sequestered protein pools, permitting continued release in a feed-forward manner to completion. Moreover, our findings indicate that the resulting OPA1 depletion causes a block in mitochondrial fusion, providing a compelling mechanism for the prominent increase in mitochondrial fragmentation seen during apoptosis.
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Cites
Danial, N. N., & Korsmeyer, S. J. (2004) · Cell · doi:10.1016/s0092-8674(04)00046-7 · Cited by 4,651
Disruption of Fusion Results in Mitochondrial Heterogeneity and Dysfunction
Chen, H., Chomyn, A., & Chan, D. C. (2005) · Journal of Biological Chemistry · doi:10.1074/jbc.m503062200 · Cited by 1,376
OPA1 requires mitofusin 1 to promote mitochondrial fusion
Cipolat, S., de Brito, O. M., Dal Zilio, B., & Scorrano, L. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0407043101 · Cited by 1,300
Olichon, A., Baricault, L., Gas, N., Guillou, E., Valette, A., Belenguer, P., & Lenaers, G. (2003) · Journal of Biological Chemistry · doi:10.1074/jbc.c200677200 · Cited by 1,168
Roles of the mammalian mitochondrial fission and fusion mediators Fis1, Drp1, and Opa1 in apoptosis
Lee, Y.-J., Jeong, S.-Y., Karbowski, M., Smith, C. L., & Youle, R. J. (2004) · Molecular Biology of the Cell · doi:10.1091/mbc.e04-04-0294 · Cited by 1,042
Karbowski, M., Lee, Y.-J., Gaume, B., Jeong, S.-Y., Frank, S., Nechushtan, A., Santel, A., Fuller, M., Smith, C. L., & Youle, R. J. (2002) · The Journal of Cell Biology · doi:10.1083/jcb.200209124 · Cited by 846
Self-citationEura, Y. (2003) · Journal of Biochemistry · doi:10.1093/jb/mvg150 · Cited by 445
Karbowski, M., Arnoult, D., Chen, H., Chan, D. C., Smith, C. L., & Youle, R. J. (2004) · The Journal of Cell Biology · doi:10.1083/jcb.200309082 · Cited by 433
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Cited by
Mitochondria and cell death: outer membrane permeabilization and beyond
Tait, S. W. G., & Green, D. R. (2010) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2952 · Cited by 2,593
OPA1 Controls Apoptotic Cristae Remodeling Independently from Mitochondrial Fusion
Frezza, C., Cipolat, S., Martins de Brito, O., Micaroni, M., Beznoussenko, G. V., Rudka, T., Bartoli, D., Polishuck, R. S., Danial, N. N., De Strooper, B., et al. (2006) · Cell · doi:10.1016/j.cell.2006.06.025 · Cited by 1,673
Mitochondrial dynamics and apoptosis
Suen, D.-F., Norris, K. L., & Youle, R. J. (2008) · Genes & Development · doi:10.1101/gad.1658508 · Cited by 1,270
Ishihara, N., Nomura, M., Jofuku, A., Kato, H., Suzuki, S. O., Masuda, K., Otera, H., Nakanishi, Y., Nonaka, I., Goto, Y.-I., et al. (2009) · Nature Cell Biology · doi:10.1038/ncb1907 · Cited by 1,066
BAK/BAX macropores facilitate mitochondrial herniation and mtDNA efflux during apoptosis
McArthur, K., Whitehead, L. W., Heddleston, J. M., Li, L., Padman, B. S., Oorschot, V., Geoghegan, N. D., Chappaz, S., Davidson, S., San Chin, H., et al. (2018) · Science · doi:10.1126/science.aao6047 · Cited by 1,072
Metadata
- Authors
- Arnoult, D., Grodet, A., Lee, Y.-J., Estaquier, J., & Blackstone, C.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2005-10
- Volume
- 280
- Issue
- 42
- Pages
- 35742-35750
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2085441242
- Cited by
- 265
- References
- 8
- FWCI
- 6.11
- Type
- journal article
- Language
- en
- Open access
- hybrid
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