Guanidinylated neomycin mediates heparan sulfate-dependent transport of active enzymes to lysosomes.
Guanidinylated neomycin mediates heparan sulfate-dependent transport of active enzymes to lysosomes.
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胍基化新霉素介导硫酸乙酰肝素依赖性活性酶向溶酶体的转运。
DOI:
10.1038/mt.2010.78
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Esko,JeffreyD
中科院分区:
文献类型:
--
作者:
Sarrazin,Stéphane;Wilson,Beth;Sly,WilliamS;Tor,Yitzhak;Esko,JeffreyD
Guanidinylated neomycin (GNeo) can transport bioactive, high molecular weight cargo into the interior of cells in a process that depends on cell surface heparan sulfate proteoglycans. In this report, we show that GNeo-modified quantum dots bind to cell surface heparan sulfate, undergo endocytosis and eventually reach the lysosomal compartment. AnN-hydroxysuccinimide activated ester of GNeo (GNeo-NHS) was prepared and conjugated to two lysosomal enzymes, β-d-glucuronidase (GUS) and α-l-iduronidase. Conjugation did not interfere with enzyme activity and enabled binding of the enzymes to heparin-Sepharose and heparan sulfate on primary human fibroblasts. Cells lacking the corresponding lysosomal enzyme took up sufficient amounts of the conjugated enzymes to restore normal turnover of glycosaminoglycans. The high capacity of proteoglycan-mediated uptake suggests that this method of delivery might be used for enzyme replacement or introduction of foreign enzymes into cells.
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DOI:
10.1073/pnas.82.10.3197
发表时间:
1985-01-01
影响因子:
11.1
作者:
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通讯作者:
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DOI:
--
发表时间:
2008
影响因子:
11.1
作者:
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通讯作者:
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DOI:
10.1016/s0167-4889(00)00139-7
发表时间:
2001
期刊:
Biochimica et Biophysica Acta
影响因子:
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作者:
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通讯作者:
C. Michalak
DOI:
10.1016/j.ymthe.2005.02.031
发表时间:
2005
期刊:
Molecular therapy : the journal of the American Society of Gene Therapy
影响因子:
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作者:
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通讯作者:
Sly,WilliamS
影响因子:
2.9
作者:
Fuchs, SM;Raines, RT
通讯作者:
Raines, RT