Hurdles in treating Hurler disease: Potential routes to achieve a "real" cure

Brigitte T.A. Van Den Broek, Jaap Van Doorn, Charlotte V. Hegeman, Stefan Nierkens, Caroline A. Lindemans, Nanda Verhoeven-Duif, Jaap Jan Boelens, Peter M. Van Hasselt

Onderzoeksoutput: Bijdrage aan tijdschriftArtikel recenserenpeer review

9 Citaten (Scopus)


Mucopolysaccharidoses (MPSs) are multiorgan devastating diseases for which hematopoietic cell transplantation (HCT) and, to a lesser extent, enzyme replacement therapy have substantially altered the course of the disease. Furthermore, they have resulted in increased overall survival, especially for Hurler disease (MPS-1). However, despite the identification of clinical predictors and harmonized transplantation protocols, disease progression still poses a significant burden to patients, although at a slower pace. To design better therapies, we need to understand why and where current therapies fail. In this review, we discuss important aspects of the underlying disease and the disease progression. We note that the majority of progressive symptoms that occur in "hard-to-treat"tissues are actually tissues that are difficult to reach, such as avascular connective tissue or tissues isolated from the circulation by a specific barrier (eg, blood-brain barrier, blood-retina barrier). Although easily reached tissues are effectively cured by HCT, disease progression is observed in these "hard-to-reach"tissues. We used these insights to critically appraise ongoing experimental endeavors with regard to their potential to overcome the encountered hurdles and improve long-term clinical outcomes in MPS patients treated with HCT.

Originele taal-2Engels
Pagina's (van-tot)2837-2849
Aantal pagina's13
TijdschriftBlood Advances
Nummer van het tijdschrift12
StatusGepubliceerd - 23 jun. 2020


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