Plasmatic dermatan sulfate and chondroitin sulfate determination in mucopolysaccharidoses
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- 作者：Nicola Volpi ; Francesca Maccari ; Fabio Galeotti ; Lucia Zampini ; Lucia Santoro ; Lucia Padella ; Tiziana Galeazzi ; Orazio Gabrielli ; Giovanni V. Coppa
- 关键词：CS ; chondroitin sulfate ; DBS ; dried blood spots ; DS ; dermatan sulfate ; ERT ; enzyme-replacement therapy ; GAG(s) ; glycosaminoglycan(s) ; HS ; heparan sulfate ; HSCT ; hematopoietic stem cell transplantation ; KS ; cheratan sulfate ; MPS ; mucopolysaccharidoses ; 0s
- 刊名：Journal of Pharmaceutical and Biomedical Analysis
- 出版年：2013
- 出版时间：November, 2013
- 年：2013
- 卷：85
- 期：Complete
- 页码：40-45
- 全文大小：683 K
文摘
The evaluation of plasmatic galactosaminoglycans, dermatan sulfate (DS) and chondroitin sulfate (CS) can be helpful in the early identification of MPS patients, also considering that primary storage of one type of GAG can lead to secondary accumulation of other lysosomal substrates. We explore the possibility to determine plasmatic DS and CS in numerous healthy pediatric (and sometimes adult) subjects depending on age and in patients affected by various forms of MPS. A highly sensitive HPLC separation and fluorescence detection was applied for plasma/serum DS and CS determination after a specific enzymatic treatment able to release their constituent disaccharides. DS and CS content decrease significantly with age in controls having high values in the first year (¡«8 ¦Ìg/mL). A highly significant decrease was observed for 1-5-year-old (¡«?33 % ) and 5-10-year-old (¡«?65 % ) healthy subgroups. No further decrease was determined showing a stabilization after 5 years of age. MPS I Scheie and Hurler patients showed rather similar DS and CS content significantly higher than controls matched for age. Similarly, MPS II, III and IV subjects all presented significantly higher plasmatic DS and CS content compared to healthy subjects matched for age. The same trend was determined for the only patient affected by MPS VI. Plasmatic DS and CS analyzed by the present procedure may be a useful diagnostic and screening marker for various forms of MPS.