title: A nonradioisotope, enzymatic assay for 2-deoxyglucose uptake in L6 skeletal muscle cells cultured in a 96-well microplate.
abstract: A nonradioisotope, 96-well-microplate assay to evaluate glucose uptake activity in cultured cells has been developed. 2-Deoxyglucose (2DG) was detected by measuring a potent fluorophore, resorufin, generated after incubation with a single assay solution containing hexokinase, adenosine 5'-triphosphate, glucose 6-phosphate dehydrogenase, beta-nicotineamide adenine dinucleotide phosphate, diaphorase, and resazurin. This amplifying detection system could detect the fluorescence intensity induced by uptake of 2DG into L6 skeletal muscle cells, even at the level of cells cultivated in individual wells in a 96-well microplate. Using this assay system, the effects of insulin, cytochalasin B (hexose uptake inhibitor), LY294002 (inhibitor of glucose transporter translocation), and pioglitazone hydrochloride (insulin-sensitizing agent) on 2DG uptake into L6 myotubes could be assessed clearly. Therefore, our simple method may be useful for in vitro high-throughput screening and for evaluating regulators of glucose uptake.
authors.affiliation: Research & Development Section, Takeda Food Products, Ltd., 3-20, Imoji, Itami 664-0011, Japan. yamamoto_norio@takedafood.co.jp
authors.forename: Norio
authors.initials: N
authors.lastname: Yamamoto
authors.forename: Takuya
authors.initials: T
authors.lastname: Sato
authors.forename: Kengo
authors.initials: K
authors.lastname: Kawasaki
authors.forename: Shinji
authors.initials: S
authors.lastname: Murosaki
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Yamamoto
mesh_terms: D000818:Animals; D002460:Cell Line; D002867:Chromones / Q000494:pharmacology; D003847:Deoxyglucose / Q000378:metabolism*; D007328:Insulin / Q000494:pharmacology; D009025:Morpholines / Q000494:pharmacology; D018482:Muscle, Skeletal / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D009249:NADP / Q000378:metabolism
chemical_list: D002867:Chromones; D007328:Insulin; D009025:Morpholines; C085911:2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one; D009249:NADP; D003847:Deoxyglucose