Role of cardiac mitofusins in cardiac conduction following simulated ischemia–reperfusion
Scientific Reports, 2022 Mitochondrial dysfunction induced by acute cardiac ischemia–reperfusion (IR), may increase susceptibility to arrhythmias by perturbing energetics, oxidative stress production and calcium homeostasis. Although changes in mitochondrial morphology are known
Xiu-Yi Kwek +17 more
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Dengue Virus Impairs Mitochondrial Fusion by Cleaving Mitofusins. [PDF]
PLoS Pathogens, 2015 Mitochondria are highly dynamic subcellular organelles participating in many signaling pathways such as antiviral innate immunity and cell death cascades. Here we found that mitochondrial fusion was impaired in dengue virus (DENV) infected cells.
Chia-Yi Yu +8 more
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Disruption of fusion results in mitochondrial heterogeneity and dysfunction [PDF]
, 2005 Mitochondria undergo continual cycles of fusion and fission, and the balance of these opposing processes regulates mitochondrial morphology. Paradoxically, cells invest many resources to maintain tubular mitochondrial morphology, when reducing both ...
Chan, David C. +2 more
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Complementation between mouse Mfn1 and Mfn2 protects mitochondrial fusion defects caused by CMT2A disease mutations [PDF]
, 2007 Mfn2, an oligomeric mitochondrial protein important for mitochondrial fusion, is mutated in Charcot-Marie-Tooth disease (CMT) type 2A, a peripheral neuropathy characterized by axonal degeneration.
Chan, David C., Detmer, Scott A.
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Defective nucleotide-dependent assembly and membrane fusion in Mfn2 CMT2A variants improved by Bax
Life Science Alliance, 2020 Mfn2 CMT2A–associated variants located proximal to the hinge connecting its two extended helical bundles have impaired GTP-dependent assembly and mitochondrial fusion activity, which are both improved by cytosolic Bax.
Nyssa B Samanas +2 more
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Broad activation of the ubiquitin-proteasome system by Parkin is critical for mitophagy [PDF]
, 2011 Parkin, an E3 ubiquitin ligase implicated in Parkinson's disease, promotes degradation of dysfunctional mitochondria by autophagy. Using proteomic and cellular approaches, we show that upon translocation to mitochondria, Parkin activates the ubiquitin ...
Anh H. Pham +49 more
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Mitofusin 1 and mitofusin 2 are ubiquitinated in a PINK1/parkin-dependent manner upon induction of mitophagy [PDF]
Human Molecular Genetics, 2010 Mitochondrial dysfunction and perturbed degradation of proteins have been implicated in Parkinson's disease (PD) pathogenesis. Mutations in the Parkin and PINK1 genes are a cause of familial PD. PINK1 is a putative kinase associated with mitochondria, and loss of PINK1 expression leads to mitochondrial dysfunction, which increases with time.
Matthew E, Gegg +5 more
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Back to The Fusion: Mitofusin-2 in Alzheimer’s Disease [PDF]
Journal of Clinical Medicine, 2020 Mitochondria are dynamic organelles that undergo constant fission and fusion. Mitochondria dysfunction underlies several human disorders, including Alzheimer’s disease (AD). Preservation of mitochondrial dynamics is fundamental for regulating the organelle’s functions.
Sita, Giulia +3 more
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Emerging functions of mammalian mitochondrial fusion and fission [PDF]
, 2005 Mitochondria provide a myriad of services to the cell, including energy production, calcium buffering and regulation of apoptosis. How these diverse functions are coordinated among the hundreds of mitochondria in a given cell is largely unknown, but is ...
Chan, David C., Chen, Hsiuchen
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Mitofusins: Mighty Regulators of Metabolism [PDF]
Cell, 2013 Mitochondria are central regulators of cellular metabolism but how their function in a subset of cells affects whole-body energy balance is less understood. Two studies in this issue of Cell identify how diet-dependent modulation of mitochondrial fusion in specific neuronal circuits impact the metabolic status of an animal.
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