title: Uptake and metabolism of polyprenols by animal cells cultured in vitro.
abstract: Several mammalian, chicken, and mosquito cells grown in vitro take up tritiated dolichol supplied to the incubation medium. The extent of labelling varied markedly between different cell cultures. After 20 h incubation most of the dolichol taken up was unchanged and the major product of metabolism of dolichol was identified as its fatty acid esters. Green-monkey kidney cells were tested with 8 fully unsaturated and 6 alpha-saturated polyprenols ranging from C35 to C105. In general the uptake of alpha-saturated polyprenols (dolichol type, was higher. Considerable differences were found between the uptake of polyprenols of differing chain lengths. Less than 1% of the polyprenols taken up was converted into more polar product, mainly polyprenyl phosphates and polyprenyl phosphate sugars. The short-chain polyprenols, from C35 to C65, were metabolized more rapidly than the long-chain polyprenols, as judged from the amount of polar products and fatty acid esters of polyprenols.
mesh_terms: D000818:Animals; D002417:Cattle; D002478:Cells, Cultured; D002642:Chick Embryo; D002522:Chlorocebus aethiops; D002855:Chromatography, Thin Layer; D006224:Cricetinae; D009033:Culicidae; D004285:Dogs; D004286:Dolichols / Q000378:metabolism; D005347:Fibroblasts / Q000378:metabolism; D007668:Kidney / Q000378:metabolism; D013729:Terpenes / Q000378:metabolism*
chemical_list: D004286:Dolichols; D013729:Terpenes