Eleanor Noone wrote: > In a message dated 1/20/00 2:44:11 AM EST, [log in to unmask] writes: > > << it is a gift and you should accept it graciously. Using the > stem cells is NOT killing, it is preserving and enhancing life, as long as > abortions are not being performed solely to obtain the cells. I can't believe > that God would want His children to suffer, when it is preventable. >> > > I've been trying to figure out > how to say just what Ken has, but I could never have said it so eloquently. > Bravo, Ken, and thank you. Eleanor this investigator ends the abstract with confidence--observe the subject ............................................ [Entrez medline Query] Other Formats: [Citation Format] [MEDLINE Format] Links: [107 medline neighbors] [Nat. Biotechnol.] Order this document Nat Biotechnol 1999 Jul;17(7):653-9 Induction of a midbrain dopaminergic phenotype in Nurr1-overexpressing neural stem cells by type 1 astrocytes. Wagner J, Akerud P, Castro DS, Holm PC, Canals JM, Snyder EY, Perlmann T, Arenas E Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden. The implementation of neural stem cell lines as a source material for brain tissue transplants is currently limited by the ability to induce specific neurochemical phenotypes in these cells. Here, we show that coordinated induction of a ventral mesencephalic dopaminergic phenotype in an immortalized multipotent neural stem cell line can be achieved in vitro. This process requires both the overexpression of the nuclear receptor Nurr1 and factors derived from local type 1 astrocytes. Over 80% of cells obtained by this method demonstrate a phenotype indistinguishable from that of endogenous dopaminergic neurons. Moreover, this procedure yields an unlimited number of cells that can engraft in vivo and that may constitute a useful source material for neuronal replacement in Parkinson's disease. Comments: * Comment in: Nat Biotechnol 1999 Jul;17(7):635-6 PMID: 10404157, UI: 99343368 ............................................................................................ Ray Strand mailto:[log in to unmask] 48/47/45? ............................................................................................ ...on the edge of the prairie abyss ......................