Bnip3-mediated mitochondrial autophagy is independent of the mitochondrial permeability transition pore
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چکیده
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Axonal degeneration is mediated by the mitochondrial permeability transition pore.
Axonal degeneration is an active process that has been associated with neurodegenerative conditions triggered by mechanical, metabolic, infectious, toxic, hereditary and inflammatory stimuli. This degenerative process can cause permanent loss of function, so it represents a focus for neuroprotective strategies. Several signaling pathways are implicated in axonal degeneration, but identification...
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...
متن کاملMitochondrial permeability transition pore: an enigmatic gatekeeper
Mitochondrial permeability transition pore (MPTP) is a transient structure formed in the inner mitochondrial membrane (IMM) upon oxidative challenge of the organelle. The transition is a Ca 2+ -dependent increase of permeability of IMM leading to loss of transmembrane potential (∆ψm), mitochondrial swelling and, finally, rupture of outer mitochondrial membrane leading to release of factors caus...
متن کاملMitochondrial permeability transition pore and postconditioning.
Postconditioning has recently been described as a powerful cardioprotection that prevents lethal reperfusion injury. Growing evidence suggests that mitochondrial permeability transition may be a key event in postconditioning. This proposition arises from the complementary observations that: (1) conditions for the mitochondrial permeability transition pore (mPTP) opening are built up during earl...
متن کاملRegulation of total mitochondrial Ca21 in perfused liver is independent of the permeability transition pore
Eriksson, Ove, Piero Pollesello, and Erika Geimonen. Regulation of total mitochondrial Ca21 in perfused liver is independent of the permeability transition pore. Am. J. Physiol. 276 (Cell Physiol. 45): C1297–C1302, 1999.— Triggering of the permeability transition pore (PTP) in isolated mitochondria causes release of matrix Ca21, ions, and metabolites, and it has been proposed that the PTP media...
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ژورنال
عنوان ژورنال: Autophagy
سال: 2010
ISSN: 1554-8627,1554-8635
DOI: 10.4161/auto.6.7.13005