3-Nitropropionic acid induces autophagy by forming mitochondrial permeability transition pores rather than activatiing the mitochondrial fission pathway
نویسندگان
چکیده
منابع مشابه
Striatal dopamine levels and changes in mitochondrial function following chronic 3-nitropropionic acid treatment in rats
An irreversible inhibitor of complex II in the mitochondria, 3-nitropropionic acid (3-NP), induces bilateral striatal lesions with many neuropathological features of Huntington’s disease (HD) in rats. It is widely used as a model of HD. Chronic systemic treatment of 3-NP for 4 days in rats (10, 15 and 20 mg/kg) caused a significant dose-dependent reduction in succinate dehydrogenase activity, w...
متن کاملThe mitochondrial permeability transition initiates autophagy in rat hepatocytes.
Cells degrade excess and effete organelles by the process of autophagy. Autophagic stimulation of rat hepatocytes by serum deprivation and glucagon (1 M) caused a fivefold increase of spontaneously depolarizing mitochondria to about 1.5% of total mitochondria after 90 min. Cyclosporin A (CsA, 5 M), an immunosuppressant that blocks the mitochondrial permeability transition (MPT), prevented this ...
متن کاملStriatal dopamine levels and changes in mitochondrial function following chronic 3-nitropropionic acid treatment in rats
An irreversible inhibitor of complex II in the mitochondria, 3-nitropropionic acid (3-NP), induces bilateral striatal lesions with many neuropathological features of Huntington’s disease (HD) in rats. It is widely used as a model of HD. Chronic systemic treatment of 3-NP for 4 days in rats (10, 15 and 20 mg/kg) caused a significant dose-dependent reduction in succinate dehydrogenase activity, w...
متن کاملHuman MIEF1 recruits Drp1 to mitochondrial outer membranes and promotes mitochondrial fusion rather than fission
Mitochondrial morphology is controlled by two opposing processes: fusion and fission. Drp1 (dynamin-related protein 1) and hFis1 are two key players of mitochondrial fission, but how Drp1 is recruited to mitochondria and how Drp1-mediated mitochondrial fission is regulated in mammals is poorly understood. Here, we identify the vertebrate-specific protein MIEF1 (mitochondrial elongation factor 1...
متن کاملThe mitochondrial permeability transition pore.
This chapter reviews recent advances in the identification of the structural elements of the permeability transition pore. The discovery that cyclosporin A (CsA) inhibits the pore proved instrumental. Various approaches indicate that CsA blocks the pore by binding to cyclophilin (CyP)-D. In particular, covalent labelling of CyP-D in situ by a photoactive CsA derivative has shown that pore ligan...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology
سال: 2012
ISSN: 0007-1188
DOI: 10.1111/j.1476-5381.2012.01994.x