Effect of 5'-deoxy-5'-S-isobutyl-thioadenosine (SIBA) on the disposition of 5'-methylthioadenosine by isolated rat hepatocytes
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منابع مشابه
Differential Neuroprotective Effects of 5′-Deoxy-5′-Methylthioadenosine
BACKGROUND 5'-deoxy-5'-methylthioadenosine (MTA) is an endogenous compound produced through the metabolism of polyamines. The therapeutic potential of MTA has been assayed mainly in liver diseases and, more recently, in animal models of multiple sclerosis. The aim of this study was to determine the neuroprotective effect of this molecule in vitro and to assess whether MTA can cross the blood br...
متن کاملConversion of 5'-deoxy-5'-methylthioadenosine and 5'-deoxy-5'-methylthioinosine to methionine in cultured human leukemic cells.
5'-Deoxy-5'-methylthioadenosine and 5'-deoxy-5'-methylthioinosine, which are metabolized to the methionine precursor, 5-methylthioribose-1-phosphate, by 5'-deoxy-5'-methylthioadenosine phosphorylase and purine nucleoside phosphorylase, respectively, can serve as sources of methionine for cultured HL-60 promyelocytic leukemia cells. CCRF-CEM T-cell leukemia cells, which lack 5'-deoxy-5'-methylth...
متن کاملPhysicochemical and immunological studies on mammalian 5'-deoxy-5'-methylthioadenosine phosphorylase.
5'-Deoxy-5'-methylthioadenosine phosphorylase (MTAase) was purified to homogeneity (10,000-fold) from bovine liver with a recovery of 12%. The pure protein shows a molecular weight of about 98,000 +/- 3,000 and is composed of three apparently identical subunits. Several physicochemical features have been investigated including hydrodynamic properties, amino acid composition, and secondary struc...
متن کاملEffect of analogues of 5'-methylthioadenosine on cellular metabolism. Inactivation of S-adenosylhomocysteine hydrolase by 5'-isobutylthioadenosine.
The effects of a number of nucleosides related to 5'-methylthioadenosine on the activities of S-adenosylhomocysteine hydrolase, 5'-methylthioadenosine phosphorylase, spermidine synthase and spermine synthase were investigated. Both 5'-methylthioadenosine and 5'-isobutylthioadenosine gave rise to an enzyme-activated irreversible inhibition of S-adenosylhomocysteine hydrolase, but 5'-methylthiotu...
متن کاملEvaluation of the Stress Effect on Expression of BEST-5 Gene in Gultured Rat Hepatocytes and Cloning of This Gene
Introduction:Liver has important roles in body metabolic regulation and for this reason hepatocytes are used worldwide.Investigations showed that isolation of hepatocytes causes activation of stress related genes.The aim of this study was to study the stress related expression of BEST-5 following hepatocytes isolation and culture. Method:The BEST-5 gene is cloned and analyzed for the first tim...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1982
ISSN: 0014-5793
DOI: 10.1016/0014-5793(82)80348-7