Description
C-typenatriureticpeptide(CNP)isanatriureticpeptide(NP)thatbindsNP-Breceptors.Thispeptideexhibitscardioprotectiveandanti-inflammatoryactivities.Inanimalmodels,CNPincreasesconductionvelocityinthesinoatrialnodeanddecreasesinfarctsizeinmodelsofischemia/reperfusion.Invitro,CNPdecreasesbasalATP-sensitiveK+channelopeningsandcurrents.AnimalmodelsofmutantCNPdisplayarthritis,cartilagedamage,andgrowthdelay,highlightingrolesforCNPintheregulationofskeletalgrowthandinflammation.CNPbindingNPreceptorsincreasescGMPlevelsandopenscysticfibrosistransmembranereceptor(CTFR)Cl-channelsinaPDE3/cAMP/PKA-dependentmanner.
References
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AzerJ,HuaR,KrishnaswamyPS,etal.Effectsofnatriureticpeptidesonelectricalconductioninthesinoatrialnodeandatrialmyocardiumoftheheart.JPhysiol.2014Mar1;592(Pt5):1025-45.PMID:24344164.
DeJongeHR,TillyBC,HogemaBM,etal.cGMPinhibitionoftype3phosphodiesteraseisthemajormechanismbywhichC-typenatriureticpeptideactivatesCFTRinthesharkrectalgland.AmJPhysiolCellPhysiol.2014Feb;306(4):C343-53.PMID:24259420.
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