Results 21 to 30 of about 22,170 (231)

The NADPH oxidase NOX4 regulates redox and metabolic homeostasis preventing HCC progression

Hepatology, EarlyView., 2022
Loss of NOX4 in HCC tumor cells induces metabolic reprogramming in a Nrf2/MYC‐dependent manner to promote HCC progression. Abstract Background and Aims The NADPH oxidase NOX4 plays a tumor‐suppressor function in HCC. Silencing NOX4 confers higher proliferative and migratory capacity to HCC cells and increases their in vivo tumorigenic potential in ...
Irene Peñuelas‐Haro, Rut Espinosa‐Sotelo, Eva Crosas‐Molist, Macarena Herranz‐Itúrbide, Daniel Caballero‐Díaz, Ania Alay, Xavier Solé, Emilio Ramos, Teresa Serrano, María L. Martínez‐Chantar, Ulla G. Knaus, José M. Cuezva, Antonio Zorzano, Esther Bertran, Isabel Fabregat   +14 more
wiley   +1 more source

Mitochondrial stress in advanced fibrosis and cirrhosis associated with chronic hepatitis B, chronic hepatitis C, or nonalcoholic steatohepatitis

Hepatology, EarlyView., 2022
Adaptive mitochondrial mechanisms allow mitochondrial resilience and prevent the worsening of fibrosis, while deregulation of these mechanisms promotes the progression from no/minimal‐mild (F0‐F2) fibrosis to advanced fibrosis and cirrhosis (F3‐F4). Abstract Background and Aims Hepatitis B virus (HBV) infection causes oxidative stress (OS) and alters ...
Dimitri Loureiro, Issam Tout, Stéphanie Narguet, Cheikh Mohamed Bed, Morgane Roinard, Ahmad Sleiman, Nathalie Boyer, Nathalie Pons‐Kerjean, Corinne Castelnau, Nathalie Giuly, Dorothy Tonui, Vassili Soumelis, Jamel El Benna, Patrick Soussan, Richard Moreau, Valérie Paradis, Abdellah Mansouri, Tarik Asselah   +17 more
wiley   +1 more source

RIPK3 dampens mitochondrial bioenergetics and lipid droplet dynamics in metabolic liver disease

Hepatology, EarlyView., 2022
RIPK3 dampens mitochondrial bioenergetics and lipid droplet dynamics in metabolic liver disease. Abstract Background and Aims Receptor‐interacting protein kinase 3 (RIPK3) mediates NAFLD progression, but its metabolic function is unclear. Here, we aimed to investigate the role of RIPK3 in modulating mitochondria function, coupled with lipid droplet (LD)
Marta B. Afonso, Tawhidul Islam, Julie Magusto, Ricardo Amorim, Véronique Lenoir, Rui F. Simões, José Teixeira, Liana C. Silva, Dominique Wendum, Isabelle Jéru, Corinne Vigouroux, Rui E. Castro, Paulo J. Oliveira, Carina Prip‐Buus, Vlad Ratziu, Jérémie Gautheron, Cecília M. P. Rodrigues   +16 more
wiley   +1 more source

OPA1 disease alleles causing dominant optic atrophy have defects in cardiolipin-stimulated GTP hydrolysis and membrane tubulation [PDF]

, 2010
The dynamin-related GTPase OPA1 is mutated in autosomal dominant optic atrophy (DOA) (Kjer type), an inherited neuropathy of the retinal ganglion cells.
Alexander, Amati-Bonneau, Ardail, David C. Chan, Delettre, Delettre, Detmer, DeVay, Frezza, Griparic, Herlan, Heymann, Hudson, Ingerman, Jenny E. Hinshaw, Jürgen A.W. Heymann, Leonard, Meeusen, Olichon, Praefcke, Pucadyil, Rujiviphat, Sesaki, Song, Song, Tadato Ban, Tondera, Zhiyin Song, Zick   +28 more
core   +3 more sources

Proteolytic Processing of OPA1 Links Mitochondrial Dysfunction to Alterations in Mitochondrial Morphology [PDF]

, 2006
Many muscular and neurological disorders are associated with mitochondrial dysfunction and are often accompanied by changes in mitochondrial morphology.
Attardi, Giuseppe, Bauer, Matthis F., Chomyn, Anne, Duvezin-Caubet, Stéphane, Hansson, Anna, Hofmann, Sabine, Jagasia, Ravi, Larsson, Nils-Göran, Neupert, Walter, Reichert, Andrea S., Trifunovic, Aleksandra, Wagener, Johannes   +11 more
core   +2 more sources

Two forms of Opa1 cooperate to complete fusion of the mitochondrial inner-membrane

eLife, 2020
Mitochondrial membrane dynamics is a cellular rheostat that relates metabolic function and organelle morphology. Using an in vitro reconstitution system, we describe a mechanism for how mitochondrial inner-membrane fusion is regulated by the ratio of two
Yifan Ge, Xiaojun Shi, Sivakumar Boopathy, Julie McDonald, Adam W Smith, Luke H Chao   +5 more
doaj   +1 more source

OPA1-related auditory neuropathy: site of lesion and outcome of cochlear implantation. [PDF]

, 2015
Hearing impairment is the second most prevalent clinical feature after optic atrophy in Dominant Optic Atrophy associated with mutations in the OPA1 gene.
Arslan, E, Biscaro, A, Cama, Elona, Caporali, L, Carelli, V., La Morgia, C, Liguori, R, Magnavita, V, Monteleone, A, Rossi, R, Santarelli, Rosamaria, Scimemi, Pietro, Valentino, Ml   +12 more
core   +3 more sources

Mitochondrial dynamics and disease, OPA1

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2006
The mitochondria are dynamic organelles that constantly fuse and divide. An equilibrium between fusion and fission controls the morphology of the mitochondria, which appear as dots or elongated tubules depending the prevailing force. Characterization of the components of the fission and fusion machineries has progressed considerably, and the emerging ...
Olichon, Aurélien, Guillou, Emmanuelle, Delettre, Cécile, Landes, Thomas, Arnauné-Pelloquin, Laetitia, Emorine, Laurent J., Mils, Valérie, Daloyau, Marlène, Hamel, Christian, Amati-Bonneau, Patrizia, Bonneau, Dominique, Reynier, Pascal, Lenaers, Guy, Belenguer, Pascale   +13 more
openaire   +2 more sources

Inhibition of the mitochondrial protein Opa1 curtails breast cancer growth

Journal of Experimental & Clinical Cancer Research, 2022
Background Mitochondrial fusion and fission proteins have been nominated as druggable targets in cancer. Whether their inhibition is efficacious in triple negative breast cancer (TNBC) that almost invariably develops chemoresistance is unknown.
Margherita Zamberlan, Amandine Boeckx, Florian Muller, Federica Vinelli, Olivier Ek, Caterina Vianello, Emeline Coart, Keitaro Shibata, Aurélie Christian, Francesca Grespi, Marta Giacomello, Ingrid Struman, Luca Scorrano, Stéphanie Herkenne   +13 more
doaj   +1 more source

OPA1 mutation and late-onset cardiomyopathy: mitochondrial dysfunction and mtDNA instability. [PDF]

, 2012
BackgroundMitochondrial fusion protein mutations are a cause of inherited neuropathies such as Charcot-Marie-Tooth disease and dominant optic atrophy.
Bers, Donald M, Chen, Le, Chiamvimonvat, Nipavan, Cortopassi, Gino, Davies, Vanessa, Knowlton, Anne A, Liu, Tingting, Lu, Xiyuan, Tomilov, Alexey A, Tran, Alice, Votruba, Marcela   +10 more
core   +2 more sources