"16203478"^^ . . . . . "1387704"^^ . . . . . . "Polydendrocyt (tn\u011Bkdy ak\u00E9 NG2 bu\u0148ka, NG2 glie, oligodendrocyt progenitorov\u00FDch bun\u011Bk) je tvarov\u011B rozv\u011Btven\u00E1 gliov\u00E1 bu\u0148ka (neuroglie) tvo\u0159\u00EDc\u00ED nehomogenn\u00ED tk\u00E1n\u011B v sav\u010D\u00EDm centr\u00E1ln\u00EDm nervov\u00E9m syst\u00E9mu, kter\u00E1 je charakteristick\u00E1 expres\u00ED chondroitin sulf\u00E1t proteoglykanu NG2. (CSPG4) a alfa receptoru pro r\u016Fstov\u00FD faktor trombocyt\u016F (PDGFRA)..Polydendrocyty jsou v b\u00EDl\u00E9 i \u0161ed\u00E9 hmot\u011B, v neurogenn\u00EDch z\u00F3n\u00E1y DG a SVZ, p\u0159i\u010Dem\u017E dosahuj\u00ED nejvy\u0161\u0161\u00ED m\u00EDry proliferace ze v\u0161ech bun\u011B\u010Dn\u00FDch typ\u016F CNS. Neurotransmiterov\u011B jsou oliv\u0148ov\u00E1ny excita\u010Dn\u00EDmi i inhibi\u010Dn\u00EDmi neurony.Polydendrocyty jsou odli\u0161n\u00E9 od ostatn\u00EDch bun\u011B\u010Dn\u00FDch populac\u00ED\u00ED (neurony, astrocyty, oligodendrocyty, mikroglie a nervov\u00E9 kmenov\u00E9 bu\u0148ky,) a jsou uzn\u00E1v\u00E1ny jako \u010Dtvrt\u00FD typ gliov\u00FDch bun\u011Bk v sav\u010D\u00EDm CNS. Studie potvrdily \u00FA\u010Dast polydendrocyt\u016F v mnoha bun\u011B\u010Dn\u00FDch a fyziologick\u00FDch procesech. Polydendrocyty v postnat\u00E1ln\u00EDm my\u0161\u00EDm CNS vytv\u00E1\u0159ej\u00ED oligodendrocyty, a proto jsou \u010Dasto naz\u00FDv\u00E1ny oligodendrocyty progenitorov\u00FDch bun\u011Bk. Polydendrocyty postupn\u011B p\u0159ech\u00E1zej\u00ED v astrocyty a exprimuj\u00ED AMPA a GABA a pravd\u011Bpodobn\u011B i NMDA receptory. Doch\u00E1z\u00ED tak k synaptick\u00E9 i (\u010Dast\u011Bj\u0161\u00ED) volumov\u00E9 transmisi a na klasick\u00FDch synaps\u00EDch je p\u0159\u00EDtomna postsynaptick\u00E1 denzita. Neuron\u00E1ln\u00ED aktivita reguluje chov\u00E1n\u00ED NG2 gli\u00ED (adaptivn\u00ED reaktivita) a \u0159\u00EDd\u00ED proliferaci, diferenciaci, migraci a nep\u0159\u00EDmo myelinizaci. Synapse v pr\u016Fb\u011Bhu mit\u00F3zy perzistuj\u00ED a p\u016Fvodn\u00ED neuron-gli\u00E1ln\u00ED spojen\u00ED jsou zachov\u00E1na i u dce\u0159in\u00FDch bun\u011Bk. Po diferenciaci doch\u00E1z\u00ED k rychl\u00E9mu z\u00E1niku synaps\u00ED"@cs . "28"^^ . . . . . . . . "Polydendrocyt (tn\u011Bkdy ak\u00E9 NG2 bu\u0148ka, NG2 glie, oligodendrocyt progenitorov\u00FDch bun\u011Bk) je tvarov\u011B rozv\u011Btven\u00E1 gliov\u00E1 bu\u0148ka (neuroglie) tvo\u0159\u00EDc\u00ED nehomogenn\u00ED tk\u00E1n\u011B v sav\u010D\u00EDm centr\u00E1ln\u00EDm nervov\u00E9m syst\u00E9mu, kter\u00E1 je charakteristick\u00E1 expres\u00ED chondroitin sulf\u00E1t proteoglykanu NG2. (CSPG4) a alfa receptoru pro r\u016Fstov\u00FD faktor trombocyt\u016F (PDGFRA)..Polydendrocyty jsou v b\u00EDl\u00E9 i \u0161ed\u00E9 hmot\u011B, v neurogenn\u00EDch z\u00F3n\u00E1y DG a SVZ, p\u0159i\u010Dem\u017E dosahuj\u00ED nejvy\u0161\u0161\u00ED m\u00EDry proliferace ze v\u0161ech bun\u011B\u010Dn\u00FDch typ\u016F CNS."@cs . . . . . . "2968"^^ . . . . . "Polydendrocyt"@cs . . . "Polydendrocyt"@cs . . . .