On the phospholipid metabolism of glial cell primary cultures. III. Utilization of 1-alkenyl-glycerophosphoethanolamine (lysoplasmalogen).
Neurochem Res
; 7(10): 1257-68, 1982 Oct.
Article
em En
| MEDLINE
| ID: mdl-7155277
ABSTRACT
Primary cultures prepared from newborn rat brain, consisted after 16 or 17 days mainly of astrocytes and of oligodendrocytes. 1-Alkenyl-sn-glycero-3-phosphoethanolamine (lysoplasmalogen) was used as substrate for studies on the metabolism of ethanolamine-glycerophospholipids. After 3 hr incubation two main products were observed a) 1-alkenyl-2-acyl-sn-glycero-3-phosphoethanolamine (= ethanolamine plasmalogen) and b) 1-alkenyl-2-acyl-sn-glycero-3-phosphocholine (= choline plasmalogen). The acylation rate reached saturation at about 10 nmol substrate/mg cell protein with a Vmax of 30 nmol x mg cell protein-1 x 3 hr-1. This acylated compound amounted to almost 60% of all radioactivity internalized, whereas the second product, choline plasmalogen, came to 20%. Unchanged substrate was found within the cells only in small amounts, even at maximum substrate internalization. These results were discussed in comparison with those obtained with 1-alkyl-sn-glycero-3-phosphoethanolamine under the same conditions (25).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fosfolipídeos
/
Lisofosfolipídeos
/
Plasmalogênios
/
Neuroglia
Limite:
Animals
Idioma:
En
Revista:
Neurochem Res
Ano de publicação:
1982
Tipo de documento:
Article