Long term follow-up after haematopoietic stem cell transplantation for mucopolysaccharidosis type I-H : a retrospective study of 51 patients

© 2022. The Author(s)..

Mucopolysaccharidosis type I-H (MPS I-H) is a rare lysosomal storage disorder caused by α-L-Iduronidase deficiency. Early haematopoietic stem cell transplantation (HSCT) is the sole available therapeutic option to preserve neurocognitive functions. We report long-term follow-up (median 9 years, interquartile range 8-16.5) for 51 MPS I-H patients who underwent HSCT between 1986 and 2018 in France. 4 patients died from complications of HSCT and one from disease progression. Complete chimerism and normal α-L-Iduronidase activity were obtained in 84% and 71% of patients respectively. No difference of outcomes was observed between bone marrow and cord blood stem cell sources. All patients acquired independent walking and 91% and 78% acquired intelligible language or reading and writing. Intelligence Quotient evaluation (n = 23) showed that 69% had IQ ≥ 70 at last follow-up. 58% of patients had normal or remedial schooling and 62% of the 13 adults had good socio-professional insertion. Skeletal dysplasia as well as vision and hearing impairments progressed despite HSCT, with significant disability. These results provide a long-term assessment of HSCT efficacy in MPS I-H and could be useful in the evaluation of novel promising treatments such as gene therapy.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:58

Enthalten in:

Bone marrow transplantation - 58(2023), 3 vom: 09. März, Seite 295-302

Sprache:

Englisch

Beteiligte Personen:

Gardin, Antoine [VerfasserIn]
Castelle, Martin [VerfasserIn]
Pichard, Samia [VerfasserIn]
Cano, Aline [VerfasserIn]
Chabrol, Brigitte [VerfasserIn]
Piarroux, Julie [VerfasserIn]
Roubertie, Agathe [VerfasserIn]
Nadjar, Yann [VerfasserIn]
Guemann, Anne-Sophie [VerfasserIn]
Tardieu, Marine [VerfasserIn]
Lacombe, Didier [VerfasserIn]
Robert, Matthieu P [VerfasserIn]
Caillaud, Catherine [VerfasserIn]
Froissart, Roseline [VerfasserIn]
Leboeuf, Virginie [VerfasserIn]
Barbier, Valérie [VerfasserIn]
Bouchereau, Juliette [VerfasserIn]
Schiff, Manuel [VerfasserIn]
Fauroux, Brigitte [VerfasserIn]
Thierry, Briac [VerfasserIn]
Luscan, Romain [VerfasserIn]
James, Syril [VerfasserIn]
de Saint-Denis, Timothée [VerfasserIn]
Pannier, Stéphanie [VerfasserIn]
Gitiaux, Cyril [VerfasserIn]
Vergnaud, Estelle [VerfasserIn]
Boddaert, Nathalie [VerfasserIn]
Lascourreges, Claire [VerfasserIn]
Lemoine, Michel [VerfasserIn]
Bonnet, Damien [VerfasserIn]
Blanche, Stéphane [VerfasserIn]
Dalle, Jean-Hugues [VerfasserIn]
Neven, Bénédicte [VerfasserIn]
de Lonlay, Pascale [VerfasserIn]
Brassier, Anaïs [VerfasserIn]

Links:

Volltext

Themen:

EC 3.2.1.76
Iduronidase
Journal Article

Anmerkungen:

Date Completed 14.03.2023

Date Revised 14.03.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1038/s41409-022-01886-1

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM350067961