title: Properties of acidic saccharides produced by B16 melanoma cells treated with 1-methyl-3-isobutylxanthine.
abstract: A cyclic nucleotide phosphodiesterase inhibitor, 1-methyl-3-isobutylxanthine, promoted the differentiation and maturation of B16 melanoma cells, phenomena associated with biological alterations in the surface properties of the cells. 1-Methyl-3-isobutylxanthien inhibited cell replication and increased the intracellular content of melanin and cyclic adenosine 3':5'-monophosphate. Significantly greater amounts of sialoglycoproteins were associated with 1-methyl-3-isobutylxanthine-treated cells. However, the total amount of [3H] glucosamine incorporated into anionic polysaccharide (both sialoglycopeptide and mucopolysaccharides) was not significantly changed.
mesh_terms: D015087:2',3'-Cyclic-Nucleotide Phosphodiesterases / Q000037:antagonists & inhibitors*; D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects*; D002455:Cell Division / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D000242:Cyclic AMP / Q000378:metabolism; D005944:Glucosamine / Q000378:metabolism; D006025:Glycosaminoglycans / Q000096:biosynthesis; D008543:Melanins / Q000378:metabolism; D008545:Melanoma / Q000378:metabolism* / Q000473:pathology; D051379:Mice; D010726:Phosphodiesterase Inhibitors; D011134:Polysaccharides / Q000096:biosynthesis*; D014970:Xanthines / Q000494:pharmacology*
chemical_list: D006025:Glycosaminoglycans; D008543:Melanins; D010726:Phosphodiesterase Inhibitors; D011134:Polysaccharides; D014970:Xanthines; D000242:Cyclic AMP; D015087:2',3'-Cyclic-Nucleotide Phosphodiesterases; D005944:Glucosamine