Elevation of glucosamine 6-phosphate synthetase activity in bleomycin-induced pulmonary fibrosis in hamsters. 1982

A Yoshida, and M Hiramatsu, and K Hatakeyama, and N Minami

The single intratracheal instillation of bleomycin sulfate (0.5 mg (potency) per 100 g body weight) in hamsters rapidly increased the activity of glucosamine 6-phosphate synthetase (EC 2.6.1.16) of the lung, a major regulatory enzyme for the synthesis of acidic glycosaminoglycan (AGAG). The activity increased as early as day 2, reached maximum level at day 10, then decreased and returned to the control level at day 45. The content of AGAG was also increased by bleomycin treatment, but the increase of AGAG followed the elevation of the enzyme activity. These results suggest that the early elevation of glucosamine 6-phosphate synthetase activity is closely related to the accumulation of AGAG in the fibrosing lung caused by bleomycin.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D011658 Pulmonary Fibrosis A process in which normal lung tissues are progressively replaced by FIBROBLASTS and COLLAGEN causing an irreversible loss of the ability to transfer oxygen into the bloodstream via PULMONARY ALVEOLI. Patients show progressive DYSPNEA finally resulting in death. Alveolitis, Fibrosing,Idiopathic Diffuse Interstitial Pulmonary Fibrosis,Fibroses, Pulmonary,Fibrosis, Pulmonary,Pulmonary Fibroses,Alveolitides, Fibrosing,Fibrosing Alveolitides,Fibrosing Alveolitis
D001761 Bleomycin A complex of related glycopeptide antibiotics from Streptomyces verticillus consisting of bleomycin A2 and B2. It inhibits DNA metabolism and is used as an antineoplastic, especially for solid tumors. BLEO-cell,Blanoxan,Blenoxane,Bleolem,Bleomicina,Bleomycin A(2),Bleomycin A2,Bleomycin B(2),Bleomycin B2,Bleomycin Sulfate,Bleomycins,Bleomycinum Mack,Bléomycine Bellon,BLEO cell,BLEOcell,Bellon, Bléomycine,Mack, Bleomycinum,Sulfate, Bleomycin
D002238 Carbohydrate Epimerases Enzymes that catalyze the epimerization of chiral centers within carbohydrates or their derivatives. EC 5.1.3. Carbohydrate Isomerases,Epimerases, Carbohydrate,Isomerases, Carbohydrate
D006025 Glycosaminoglycans Heteropolysaccharides which contain an N-acetylated hexosamine in a characteristic repeating disaccharide unit. The repeating structure of each disaccharide involves alternate 1,4- and 1,3-linkages consisting of either N-acetylglucosamine (see ACETYLGLUCOSAMINE) or N-acetylgalactosamine (see ACETYLGALACTOSAMINE). Glycosaminoglycan,Mucopolysaccharides
D006224 Cricetinae A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS. Cricetus,Hamsters,Hamster
D000637 Transaminases A subclass of enzymes of the transferase class that catalyze the transfer of an amino group from a donor (generally an amino acid) to an acceptor (generally a 2-keto acid). Most of these enzymes are pyridoxyl phosphate proteins. (Dorland, 28th ed) EC 2.6.1. Aminotransferase,Aminotransferases,Transaminase
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D019747 Aldose-Ketose Isomerases Enzymes that catalyze the interconversion of aldose and ketose compounds. Ketose-Aldose Isomerases,Aldose Ketose Isomerases,Isomerases, Aldose-Ketose,Isomerases, Ketose-Aldose,Ketose Aldose Isomerases

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