Results 41 to 50 of about 15,870 (189)

Characterization of two novel intronic OPA1 mutations resulting in aberrant pre-mRNA splicing [PDF]

open access: yes, 2017
BACKGROUND We report two novel splice region mutations in OPA1 in two unrelated families presenting with autosomal-dominant optic atrophy type 1 (ADOA1) (ADOA or Kjer type optic atrophy).
Bartholdi, Deborah   +15 more
core   +1 more source

The Role of Swelling in the Regulation of OPA1-Mediated Mitochondrial Function in the Heart In Vitro

open access: yesCells, 2023
Optic atrophy-1 (OPA1) plays a crucial role in the regulation of mitochondria fusion and participates in maintaining the structural integrity of mitochondrial cristae.
Xavier R. Chapa-Dubocq   +5 more
doaj   +1 more source

Mitochondrial and Lipid Droplet Dynamics Regulate Intra- and Intercellular Fatty Acid Trafficking

open access: yesMolecular & Cellular Oncology, 2018
Imaging of fatty acid (FA) trafficking revealed that FAs stored in lipid droplets were delivered to mitochondria when the cells were starved. This delivery required cytoplasmic lipases and mitochondrial fusion activity, whereas lipid droplets were ...
Sarah Cohen   +2 more
doaj   +1 more source

Ischemia-induced cleavage of OPA1 at S1 site aggravates mitochondrial fragmentation and reperfusion injury in neurons

open access: yesCell Death and Disease, 2022
Neuronal mitochondrial dynamics are disturbed after ischemic stroke. Optic atrophy 1 (OPA1) and its GTPase activity are involved in maintaining mitochondrial cristae and inner membrane fusion.
Xiang Li   +8 more
doaj   +1 more source

Optic Atrophy 1 Controls Human Neuronal Development by Preventing Aberrant Nuclear DNA Methylation

open access: yesiScience, 2020
Summary: Optic atrophy 1 (OPA1), a GTPase at the inner mitochondrial membrane involved in regulating mitochondrial fusion, stability, and energy output, is known to be crucial for neural development: Opa1 heterozygous mice show abnormal brain development,
Safak Caglayan   +15 more
doaj   +1 more source

Altered Mitochondrial Opa1-Related Fusion in Mouse Promotes Endothelial Cell Dysfunction and Atherosclerosis

open access: yesAntioxidants, 2022
Flow (shear stress)-mediated dilation (FMD) of resistance arteries is a rapid endothelial response involved in tissue perfusion. FMD is reduced early in cardiovascular diseases, generating a major risk factor for atherosclerosis.
Ahmad Chehaitly   +15 more
doaj   +1 more source

Contribution of 3q26-29 gene cluster to glioma invasion [PDF]

open access: yes, 2015
Diffuse gliomas are the most common and lethal brain tumors. Cell invasion into the surrounding brain tissue is a hallmark feature of glioma. Understanding the mechanism of glioma invasion could lead to the discovery of novel therapeutic strategies to ...
Ramadoss, Archana
core   +1 more source

Restoration of L-OPA1 alleviates acute ischemic stroke injury in rats via inhibiting neuronal apoptosis and preserving mitochondrial function

open access: yesRedox Biology, 2020
Background: Ischemic stroke can induce changes in mitochondrial morphology and function. As a regulatory gene in mitochondria, optic atrophy 1 (OPA1) plays a pivotal role in the regulation of mitochondrial dynamics and other related functions.
Yongxing Lai   +11 more
doaj   +1 more source

Oxidization of optic atrophy 1 cysteines occurs during heart ischemia-reperfusion and amplifies cell death by oxidative stress

open access: yesRedox Biology, 2023
During cardiac ischemia-reperfusion, excess reactive oxygen species can damage mitochondrial, cellular and organ function. Here we show that cysteine oxidation of the mitochondrial protein Opa1 contributes to mitochondrial damage and cell death caused by
Martina Semenzato   +9 more
doaj   +1 more source

Autosomal dominant optic atrophy: A novel treatment for OPA1 splice defects using U1 snRNA adaption

open access: yesMolecular Therapy: Nucleic Acids, 2021
Autosomal dominant optic atrophy (ADOA) is frequently caused by mutations in the optic atrophy 1 (OPA1) gene, with haploinsufficiency being the major genetic pathomechanism. Almost 30% of the OPA1-associated cases suffer from splice defects.
Christoph Jüschke   +5 more
doaj   +1 more source

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