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Immunophilins and Cardiovascular Complications

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Abstract:

Immunophilins belong to a highly conserved family of proteins with cis-trans peptidyl-prolyl isomerase activity, generally classified by their ability to selectively bind specific immunosuppressive drugs, thereby regulating their activity. Immunophilins include Cyclophilins (CyPs), which are specific targets of the immunosuppressant drug cyclosporin A (CsA); FKBPs (FK506-binding proteins), that are sensitive to both FK506 (tacrolimus) and rapamycin (sirolimus); and FCBPs which are sensitive to CsA and FK506. Immunophilins are expressed in multiple human tissues, including brain, heart, kidney, liver and lung and regulate functions as diverse as intracellular calcium signaling, protein transport, protein folding and gene transcription. In particular, immunophilins play key functional roles in the cardiovascular system, where they can associate with proteins such as ryanodine and IP3 receptors (RyR and IP3R), calcineurin, and mitochondrial permeability transition pore (MPTP) and Heat-shock proteins-caveolin-cholesterol complex and regulate their function. The biological importance of immunophilins is further revealed by the pathophysiology, as they have been implicated in several cardiovascular diseases, including vascular stenosis, atherosclerosis, heart failure and arrhythmias. This review summarizes some of the most recent studies on immunophilins and focuses on their roles in the mechanisms underlying the cardiovascular disease.





Keywords: Immunophilins; atherosclerosis; calcium signaling; cardioprotection; cardiovascular disease; drug cyclosporin; immunosuppressive; peptidyl-prolyl; proteins-caveolin-cholesterol complex; remodelling

Document Type: Research Article

DOI: http://dx.doi.org/10.2174/092986711798194379

Publication date: December 1, 2011

More about this publication?
  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.
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