Platelet-derived growth factor promotes survival of rat and human mesencephalic dopaminergic neurons in culture
1993 (English)In: Experimental Brain Research, ISSN 0014-4819, E-ISSN 1432-1106, Vol. 92, no 3, 516-523 p.Article in journal (Refereed) Published
The effect of two isoforms of platelet-derived growth factor (PDGF), PDGF-AA and PDGF-BB, was tested on dissociated cell cultures of ventral mesencephalon from rat and human embryos. PDGF-BB but not PDGF-AA reduced the progressive loss of tyrosine hydroxylase- (TH)-positive neurons in rat and human cell cultures. The mean number of TH-positive cells in the PDGF-BB-treated rat culture was 64% and 106% higher than in the control cultures after 7 and 10 days in vitro, respectively. Corresponding figures for human TH-positive neurons were 90% and 145%. The influence of PDGF-BB was specific for TH-positive neurons and not a general trophic effect, since no change of either total cell number or metabolic activity was found. In PDGF-BB-treated cultures of human but not rat tissue the TH-positive neurons had longer neurites than observed in control or PDGF-AA-treated cultures. These data indicate that PDGF-BB may act as a trophic factor for mesencephalic dopaminergic neurons and suggest that administration of PDGF-BB could ameliorate degeneration and possibly promote axonal sprouting of these neurons in vivo.
Place, publisher, year, edition, pages
1993. Vol. 92, no 3, 516-523 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-197017DOI: 10.1007/BF00229041PubMedID: 8095907OAI: oai:DiVA.org:uu-197017DiVA: diva2:611510