ASIC2a overexpression enhances the protective effect of PcTx1 and APETx2 against acidosis-induced articular chondrocyte apoptosis and cytotoxicity
Zhou R, Ni W, Dai B, Wu X, Wang Z, Xie Y, Wang Z, Yang W, Ge J, Hu W, Chen F. ASIC2a overexpression enhances the protective effect of PcTx1 and APETx2 against acidosis-induced articular chondrocyte apoptosis and cytotoxicity. Gene 2017, 642: 230-240. PMID: 29141196, DOI: 10.1016/j.gene.2017.11.034.Peer-Reviewed Original ResearchMeSH KeywordsAcid Sensing Ion Channel BlockersAcid Sensing Ion ChannelsAcidosisAlkanesulfonic AcidsAnimalsApoptosisCells, CulturedChondrocytesCnidarian VenomsCollagen Type IIDrug SynergismGene Expression RegulationGenetic VectorsMAP Kinase Signaling SystemMorpholinesPeptidesPlasmidsRatsSpider VenomsConceptsAcid-sensing ion channel 1aArticular chondrocyte apoptosisChondrocyte apoptosisChondrocyte cytotoxicityRheumatoid arthritisProtective effectExpression of ASIC1aAcidosis-induced injuryERK1/2 MAPK signaling pathwaysIon channel 1aAlone groupNeuroprotective effectsChondroprotective effectsMAPK signaling pathwaysProtective roleType II collagenChannel 1aNeuronal cellsAPETx2ASIC2aPcTx1Phosphorylated ERK1/2Pathological charactersInduced apoptosisII collagenInterleukin-1β and tumor necrosis factor-α augment acidosis-induced rat articular chondrocyte apoptosis via nuclear factor-kappaB-dependent upregulation of ASIC1a channel
Zhou R, Dai B, Xie Y, Wu X, Wang Z, Li Y, Wang Z, Zu S, Ge J, Chen F. Interleukin-1β and tumor necrosis factor-α augment acidosis-induced rat articular chondrocyte apoptosis via nuclear factor-kappaB-dependent upregulation of ASIC1a channel. Biochimica Et Biophysica Acta (BBA) - Molecular Basis Of Disease 2017, 1864: 162-177. PMID: 28986307, DOI: 10.1016/j.bbadis.2017.10.004.Peer-Reviewed Original ResearchConceptsAcid-sensing ion channel 1aIL-1βRheumatoid arthritisInterleukin-1βNF-κB inhibitor ammonium pyrrolidinedithiocarbamateNF-κB DNA-binding activityPrimary articular chondrocytesProinflammatory cytokine interleukin-1βAcidosis-induced cytotoxicityCytokines interleukin-1βTumor necrosis factorImportant pathological characteristicNF-κB pathwayArticular chondrocyte apoptosisCaspase-3/9 expressionIon channel 1aNuclear factor-kappaBPleiotropic biological effectsArticular chondrocytesAgent BAPTA-AMASIC1a expressionChondrocyte cytotoxicityΚB expressionAdjuvant arthritisPathological characteristics