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2020, vol. 74, br. 1, str. 18-33
Platelet-poor plazma sportista kao potencijalni induktor miogene diferencijacije C2C12 mioblasta
aRed Star Weightlifting Club, Belgrade + Univerzitet u Beogradu, Institut za medicinska istraživanja
bUniverzitet u Beogradu, Institut za medicinska istraživanja

e-adresavesnai@imi.bg.ac.rs
Projekat:
This work was supported by grants from the Ministry of Youth and Sport, Republic of Serbia (Contract No. 450-451/02-012713/1/2011-03)
Regenerativni i modulatorni potencijal adultnih matičnih ćelija (MPNTR - 175062)

Ključne reči: C2C12 mioblasti; fizičko vežbanje; miogena diferencijacija; morfologija miotuba
Sažetak
Uvod. Krvna plazma obogaćena leukocitima, plazma sa niskim sadržajem leukocita i plazma sa niskim sadržajem trombocita (platelet poor plasma; PPP) su produkti krvi koji se koriste za stimulaciju regeneracije mišića. U ovom radu smo ispitivali da li zamrzavana PPP osoba koje se bave različitim tipovima fizičke aktivnosti, usmerava C2C12 myoblaste u pravcu povećane proliferacije, migracije i miogene diferencijacije, i da li utiče na morfologiju/izgled miotuba. Materijal i metode. PPP osoba muškog pola starih 15-19 godina je izolovana iz krvi dizača tegova, fudbalera i profesionalnih igrača folklora, 12 sati nakon treninga. Uzorci PPP su čuvani šest meseci na -20ºC. Uticaj PPP na proliferaciju C2C12 ćelija je analiziran MTT testom, na migraciju "scratch" testom, a uticaj na miogenu diferencijaciju je analiziran na osnovu sposobnosti PPP da indukuju formiranje miotuba. Želatinolitička aktivnost PPP je analizirana gel-zimografijom. Rezultati i zaključak. Uzorci PPP su indukovali proliferaciju i migraciju C2C12 ćelija, a kapacitet da stimulišu proliferaciju je bio: dizači tegova > igrači > fudbaleri. Kapacitet PPP da utiču na migraciju C2C12 ćelija je bio: dizači tegova = igrači > fudbaleri. Svi uzorci PPP su indukovali formiranje miotuba, ali su zapažene značajne interindividualne varijacije. PPP dizača tegova su indukovali formiranje okruglih miotuba, dok su miotube formirane u prisustvu PPP igrača i fudbalera bile izdužene. Površina miotuba se, zavisno od tipa fizičke aktivnosti, menjala po sledećem rasporedu: fudbaleri > igrači > dizači tegova. Želatinolitička aktivnost PPP je nagativno korelirala sa proliferacijom C2C12 ćelija. Rezultati ove studije pokazuju da PPP osoba koje se bave određenim tipom fizičke aktivnosti mogu da na specifičan način modulišu morfologiju/funciju mioblasta. Ovaj rezultat je od značaja za objašnjnje fiziološkog odgovora i adaptacije na vežbanje. On pokazuje i da PPP nakon dugotrajnog zamrzavanja imaju očuvanu spospbnost modifikovanja morfologije i funkcije mioblasta.
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O članku

jezik rada: engleski
vrsta rada: originalan članak
DOI: 10.2298/VETGL190414019M
objavljen u SCIndeksu: 26.07.2020.