Journal
MOLECULAR GENETICS AND METABOLISM REPORTS
Volume 1, Issue -, Pages 184-196Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ymgmr.2014.04.001
Keywords
Hunter syndrome; Growth impact; Hematopoietic stem cell therapy; Enzyme replacement therapy; Height
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Funding
- Austrian MPS Society and the International Morquio Organization
- Japanese MPS Family Society
- National Institute of General Medical Sciences of NIH [P20GM103464]
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT [R01HD065767] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [P20GM103464] Funding Source: NIH RePORTER
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Patients with Hunter syndrome (mucopolysaccharidosis II) present with skeletal dysplasia including short stature as well as CNS and visceral organ involvement. A previous study on Hunter syndrome indicated an impact on brain and heart involvement after hematopoietic stem cell therapy (HSCT) at an early stage but little impact after enzyme replacement therapy (ERT) (Tanaka et al. 2012). Meanwhile, impact on growth in patients with Hunter syndrome treated with ERT and HSCT has not been compared until now. We recently developed baseline growth charts for untreated patients with Hunter syndrome to evaluate the natural history of growth of these patients compared to unaffected controls (Patel et al., 2014). To assess impact of ERT and HSCT on growth, clinical data were obtained from 44 Japanese male patients with MPS II; 26 patients had been treated with ERT, 12 patients had been treated with HSCT, and 6 had been treated with both ERT and HSCT. Height and weight were compared to untreated patients and unaffected controls from the previous study. We demonstrated 1) that MPS II patients, who had been treated with either ERT or HSCT, had increased height and weight when compared to untreated patients, and 2) that HSCT and ERT were equally effective in restoring growth of MPS II patients. In conclusion, HSCT should be considered as one of the primary therapeutic options for early stage treatment of MPS II, as HSCT has also been reported to have a positive effect on brain and heart valve development (Tanaka et al. 2012). (C) 2014 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license
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