Platelet-derived growth factor promotes survival of rat and human mesencephalic dopaminergic neurons in culture

Summary, in English

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.

• Författare: G Nikkhah; Per Odin; A Smits; Anders Tingström; Agneta Sanmartin; Patrik Brundin; K Funa; Olle Lindvall
• Avdelning/ar: Neurologi, Lund; Institutionen för experimentell medicinsk vetenskap
• Publiceringsår: 1993
• Språk: Engelska
• Sidor: 516-523
• Publikation/Tidskrift/Serie: Experimental Brain Research
• Volym: 92
• Issue: 3
• Länkar: http://dx.doi.org/10.1007/BF00229041
• Dokumenttyp: Artikel i tidskrift
• Förlag: Springer
• Ämne: Neurosciences
• Nyckelord: Dopaminergic neurons; Platelet-derived growth factor; Cell culture; Parkinson's disease; Rat; Human
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0014-4819