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   Comparative study of idursulfase beta and idursulfase in vitro and in vivo  
   
نویسنده Kim Chihwa ,Seo Jinwook ,Chung Yokyung ,Ji Hyi-Jeong ,Lee Jaehyeon ,Sohn Jongmun ,Lee Byoungju ,Jo Eui-cheol
منبع journal of human genetics - 2017 - دوره : 62 - شماره : 2 - صفحه:167 -174
چکیده    Hunter syndrome is an x-linked lysosomal storage disease caused by a deficiency in the enzyme iduronate-2-sulfatase (ids), leading to the accumulation of glycosaminoglycans (gags). two recombinant enzymes, idursulfase and idursulfase beta are currently available for enzyme replacement therapy for hunter syndrome. these two enzymes exhibited some differences in various clinical parameters in a recent clinical trial. regarding the similarities and differences of these enzymes, previous research has characterized their biochemical and physicochemical properties. we compared the in vitro and in vivo efficacy of the two enzymes on patient fibroblasts and mouse model. two enzymes were taken up into the cell and degraded gags accumulated in fibroblasts. in vivo studies of two enzymes revealed similar organ distribution and decreased urinary gags excretion. especially, idursulfase beta exhibited enhanced in vitro efficacy for the lower concentration of treatment, in vivo efficacy in the degradation of tissue gags and improvement of bones, and revealed lower anti-drug antibody formation. a biochemical analysis showed that both enzymes show largely a similar glycosylation pattern, but the several peaks were different and quantity of aggregates of idursulfase beta was lower.
آدرس MOGAM Institute for Biomedical Research, Protein Engineering Laboratory, South Korea, Research Center, South Korea, Research Center, South Korea, Corporate Development, Green Cross Corporation, South Korea, Research Center, South Korea, Research Center, South Korea, Research Center, South Korea, MOGAM Institute for Biomedical Research, Protein Engineering Laboratory, South Korea
 
     
   
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