» Articles » PMID: 27554467

F1F0 ATP Synthase-Cyclophilin D Interaction Contributes to Diabetes-Induced Synaptic Dysfunction and Cognitive Decline

Overview
Journal Diabetes
Specialty Endocrinology
Date 2016 Aug 25
PMID 27554467
Citations 30
Authors
Affiliations
Soon will be listed here.
Abstract

Mitochondrial abnormalities are well known to cause cognitive decline. However, the underlying molecular basis of mitochondria-associated neuronal and synaptic dysfunction in the diabetic brain remains unclear. Here, using a mitochondrial single-channel patch clamp and cyclophilin D (CypD)-deficient mice (Ppif ) with streptozotocin-induced diabetes, we observed an increase in the probability of Ca-induced mitochondrial permeability transition pore (mPTP) opening in brain mitochondria of diabetic mice, which was further confirmed by mitochondrial swelling and cytochrome c release induced by Ca overload. Diabetes-induced elevation of CypD triggers enhancement of FF ATP synthase-CypD interaction, which in turn leads to mPTP opening. Indeed, in patients with diabetes, brain cypD protein levels were increased. Notably, blockade of the FF ATP synthase-CypD interaction by CypD ablation protected against diabetes-induced mPTP opening, ATP synthesis deficits, oxidative stress, and mitochondria dysfunction. Furthermore, the absence of CypD alleviated deficits in synaptic plasticity, learning, and memory in diabetic mice. Thus, blockade of ATP synthase interaction with CypD provides a promising new target for therapeutic intervention in diabetic encephalopathy.

Citing Articles

Mitochondrial CypD Acetylation Promotes Endothelial Dysfunction and Hypertension.

Dikalova A, Fehrenbach D, Mayorov V, Panov A, Ao M, Lantier L Circ Res. 2024; 134(11):1451-1464.

PMID: 38639088 PMC: 11116043. DOI: 10.1161/CIRCRESAHA.123.323596.


New cyclophilin D inhibitor rescues mitochondrial and cognitive function in Alzheimer's disease.

Samanta S, Akhter F, Roy A, Chen D, Turner B, Wang Y Brain. 2023; 147(5):1710-1725.

PMID: 38146639 PMC: 11484516. DOI: 10.1093/brain/awad432.


Reactive Oxygen Species Damage Bovine Endometrial Epithelial Cells via the Cytochrome C-mPTP Pathway.

Song P, Sun M, Liu C, Liu J, Lin P, Chen H Antioxidants (Basel). 2023; 12(12).

PMID: 38136242 PMC: 10741073. DOI: 10.3390/antiox12122123.


Caspase-3 cleaved tau impairs mitochondrial function through the opening of the mitochondrial permeability transition pore.

Perez M, Ibarra-Garcia-Padilla R, Tang M, Porter Jr G, Johnson G, Quintanilla R Biochim Biophys Acta Mol Basis Dis. 2023; 1870(1):166898.

PMID: 37774936 PMC: 11361306. DOI: 10.1016/j.bbadis.2023.166898.


Platelet mitochondria: the mighty few.

Ajanel A, Campbell R, Denorme F Curr Opin Hematol. 2023; 30(5):167-174.

PMID: 37459354 PMC: 10529105. DOI: 10.1097/MOH.0000000000000772.


References
1.
Taddeo E, Laker R, Breen D, Akhtar Y, Kenwood B, Liao J . Opening of the mitochondrial permeability transition pore links mitochondrial dysfunction to insulin resistance in skeletal muscle. Mol Metab. 2014; 3(2):124-34. PMC: 3953683. DOI: 10.1016/j.molmet.2013.11.003. View

2.
Baines C, Kaiser R, Purcell N, Blair N, Osinska H, Hambleton M . Loss of cyclophilin D reveals a critical role for mitochondrial permeability transition in cell death. Nature. 2005; 434(7033):658-62. DOI: 10.1038/nature03434. View

3.
Fang D, Wang Y, Zhang Z, Du H, Yan S, Sun Q . Increased neuronal PreP activity reduces Aβ accumulation, attenuates neuroinflammation and improves mitochondrial and synaptic function in Alzheimer disease's mouse model. Hum Mol Genet. 2015; 24(18):5198-210. PMC: 4550821. DOI: 10.1093/hmg/ddv241. View

4.
Kinnally K, Campo M, Tedeschi H . Mitochondrial channel activity studied by patch-clamping mitoplasts. J Bioenerg Biomembr. 1989; 21(4):497-506. DOI: 10.1007/BF00762521. View

5.
Huang C, Chung C, Leu H, Lin L, Chiu C, Hsu C . Diabetes mellitus and the risk of Alzheimer's disease: a nationwide population-based study. PLoS One. 2014; 9(1):e87095. PMC: 3906115. DOI: 10.1371/journal.pone.0087095. View