ArticleMitochondrion2020
OPA1 regulates respiratory supercomplexes assembly: The role of mitochondrial swelling.
Article in Mitochondrion, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed, 95 citations in OpenAlex.
- Functional impact of Nth like DNA glycosylase 1 on mitochondrial dynamics.Nucleic acids research · 2026Article
- Multifunctional Role of Mitochondrial Fatty Acid Oxidation in Cancer Immunotherapy and Aging.Cancer science · 2026Review
- FAM162A Is a Key Regulator of Mitochondrial Structure, Dynamics, and Bioenergetics, Driving Cellular Protection and Longevity.Aging cell · 2026Article
- Mitochondrial metabolism and signaling direct dendritic cell function in antitumor immunity.Science (New York, N.Y.) · 2026Article
- Review
- Multiscale mitochondrial cristae remodeling links Opa1 downregulation to reduced OXPHOS capacity in aged hearts.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Article
- Effects of Diet and Exercise on Mitochondrial Health in Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD): Role of Ceramides.Nutrients · 2025Review
- Mitochondrial Transport Proteins in Cardiovascular Diseases: Metabolic Gatekeepers, Pathogenic Mediators and Therapeutic Targets.International journal of molecular sciences · 2025Review
- A High-Fat Diet Induces Oxidative Stress in OPA1Antioxidants (Basel, Switzerland) · 2025Article
- Mitochondrial protein OPA1 is required for the expansion of effector CD8 T cells.Cell reports · 2025Article
- Novel in vivo models of autosomal optic atrophy reveal conserved pathological changes in neuronal mitochondrial structure and function.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025Article
- Tetrahydrobenzimidazole TMQ0153 targets OPA1 and restores drug sensitivity in AML via ROS-induced mitochondrial metabolic reprogramming.Journal of experimental & clinical cancer research : CR · 2025Article
- Mitochondrial dynamics govern whole-body regeneration through stem cell pluripotency and mitonuclear balance.Nature communications · 2024Article
- Beyond fission and fusion-Diving into the mysteries of mitochondrial shape.PLoS biology · 2024Review
- Attenuating mitochondrial dysfunction and morphological disruption with PT320 delays dopamine degeneration in MitoPark mice.Journal of biomedical science · 2024Article
- Mitochondrial morphology dynamics and ROS regulate apical polarity and differentiation in Drosophila follicle cells.Development (Cambridge, England) · 2024Article
- Comparative effects of 3,5-diiodo-L-thyronine and 3,5,3'-triiodo-L-thyronine on mitochondrial damage and cGAS/STING-driven inflammation in liver of hypothyroid rats.Frontiers in endocrinology · 2024Article
- OPA1 Dominant Optic Atrophy: Pathogenesis and Therapeutic Targets.Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society · 2023Article
- Mitochondrial dysfunction at the crossroad of cardiovascular diseases and cancer.Journal of translational medicine · 2023Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Optic atrophy type 1 protein (OPA1), a dynamin-related GTPase, that, in addition to mitochondrial fusion, plays an important role in maintaining the structural organization and integrity of the inner mitochondrial membrane (IMM). OPA1 exists in two forms: IMM-bound long-OPA1 (L-OPA1) and soluble short-OPA1 (S-OPA1), a product of L-OPA1 proteolytic cleavage localized in the intermembrane space. In addition to OPA1, the structural and functional integrity of IMM can be regulated by changes in the matrix volume due to the opening/closure of permeability transition pores (PTP). Herein, we investigated the crosstalk between the PTP and OPA1 to clarify whether PTP opening is involved in OPA1-mediated regulation of respiratory chain supercomplexes (RCS) assembly using cardiac mitochondria and cell line. We found that: 1) Proteolytic cleavage of L-OPA1 is stimulated by PTP-induced mitochondrial swelling, 2) OPA1 knockdown reduces PTP-induced mitochondrial swelling but enhances ROS production, 3) OPA1 deficiency impairs the RCS assembly associated with diminished ETC activity and oxidative phosphorylation, 4) OPA1 has no physical interaction with phospholipid scramblase 3 although OPA1 downregulation increases expression of the scramblase. Thus, this study demonstrates that L-OPA1 cleavage depends on the PTP-induced mitochondrial swelling suggesting a regulatory role of the PTP-OPA1 axis in RCS assembly and mitochondrial bioenergetics.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.