Cyclophilin D in mitochondrial pathophysiology

Cyclophilin D modulates mitochondrial acetylome.

RATIONALE Mice lacking cyclophilin D (CypD(-/-)), a mitochondrial chaperone protein, have altered cardiac metabolism. As acetylation has been shown to regulate metabolism, we tested whether changes in protein acetylation might play a role in these metabolic changes in CypD(-/-) hearts. OBJECTIVE Our aim was to test the hypothesis that loss of CypD alters the cardiac mitochondrial acetylome. ...

Mitochondrial import of cyclophilin-D.

Mammalian mitochondria contain an inner membrane pore which opens following an increase in matrix calcium. Pore opening has been implicated in tissue damage following ischaemic injury. The pore is reversibly blocked by cyclosporin A [l] suggesting a role for cyclophilin in pore control. A mitochondria1 isoform of cyclophilin (CyP-D) [2,3,4,5] has now been identified. Analysis of the N-terminus ...

Cyclophilin D Modulates the Mitochondrial Acetylome

Mitochondrial Cyclophilin D in Vascular Oxidative Stress and Hypertension.

Vascular superoxide (O˙2 (-)) and inflammation contribute to hypertension. The mitochondria are an important source of O˙2 (-); however, the regulation of mitochondrial O˙2 (-) and the antihypertensive potential of targeting the mitochondria remain poorly defined. Angiotensin II and inflammatory cytokines, such as interleukin 17A and tumor necrosis factor-α (TNFα) significantly contribute to hy...

Cyclophilin D Deficiency Rescues Axonal Mitochondrial Transport in Alzheimer’s Neurons

Normal axonal mitochondrial transport and function is essential for the maintenance of synaptic function. Abnormal mitochondrial motility and mitochondrial dysfunction within axons are critical for amyloid β (Aβ)-induced synaptic stress and the loss of synapses relevant to the pathogenesis of Alzheimer's disease (AD). However, the mechanisms controlling axonal mitochondrial function and transpo...