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Entchev E, Antonelli S, Mauro V, Cimbolini N, Jantzen I, Roussey A, Germain JM, Zhang H, Luccarrini JM, Lacombe O, Young SP, Feraille L, Tallandier M. MPS VI associated ocular phenotypes in an MPS VI murine model and the therapeutic effects of odiparcil treatment. Mol Genet Metab 2022; 135:143-153. [PMID: 34417096 DOI: 10.1016/j.ymgme.2021.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/19/2021] [Accepted: 07/23/2021] [Indexed: 01/10/2023]
Abstract
Maroteaux - Lamy syndrome (mucopolysaccharidosis type VI, MPS VI) is a lysosomal storage disease resulting from insufficient enzymatic activity for degradation of the specific glycosaminoglycans (GAG) chondroitin sulphate (CS) and dermatan sulphate (DS). Among the most pronounced MPS VI clinical manifestations caused by cellular accumulation of excess CS and DS are eye disorders, in particular those that affect the cornea. Ocular manifestations are not treated by the current standard of care, enzyme replacement therapy (ERT), leaving patients with a significant unmet need. Using in vitro and in vivo models, we previously demonstrated the potential of the β-D-xyloside, odiparcil, as an oral GAG clearance therapy for MPS VI. Here, we characterized the eye phenotypes in MPS VI arylsulfatase B deficient mice (Arsb-) and studied the effects of odiparcil treatment in early and established disease models. Severe levels of opacification and GAG accumulation were detected in the eyes of MPS VI Arsb- mice. Histological examination of MPS VI Arsb- eyes showed an aggregate of corneal phenotypes, including reduction in the corneal epithelium thickness and number of epithelial cell layers, and morphological malformations in the stroma. In addition, colloidal iron staining showed specifically GAG accumulation in the cornea. Orally administered odiparcil markedly reduced GAG accumulation in the eyes of MPS VI Arsb- mice in both disease models and restored the corneal morphology (epithelial layers and stromal structure). In the early disease model of MPS VI, odiparcil partially reduced corneal opacity area, but did not affect opacity area in the established model. Analysis of GAG types accumulating in the MPS VI Arsb- eyes demonstrated major contribution of DS and CS, with some increase in heparan sulphate (HS) as well and all were reduced with odiparcil treatment. Taken together, we further reveal the potential of odiparcil to be an effective therapy for eye phenotypes associated with MPS VI disease.
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Affiliation(s)
| | - Sophie Antonelli
- Iris Pharma, Les Nertiéres, Allée Hector Pintus, La Gaude 06610, France
| | - Virginie Mauro
- Iris Pharma, Les Nertiéres, Allée Hector Pintus, La Gaude 06610, France
| | - Nicolas Cimbolini
- Iris Pharma, Les Nertiéres, Allée Hector Pintus, La Gaude 06610, France
| | | | | | | | - Haoyue Zhang
- Duke University Health System Biochemical Genetics Lab, Durham, NC, USA
| | | | | | - Sarah P Young
- Duke University Health System Biochemical Genetics Lab, Durham, NC, USA; Division of Medical Genetics, Department of Pediatrics, Duke School of Medicine, Durham, NC, USA
| | - Laurence Feraille
- Iris Pharma, Les Nertiéres, Allée Hector Pintus, La Gaude 06610, France
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Zourbas J, Senecal J, Roussey A, Boivin M. [Rubella immunity 5 years after vaccination]. Nouv Presse Med 1978; 7:1297. [PMID: 662659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Zourbas J, Massé L, Roussey A, David C, Maurin J, Torte J. Sampling survey on brucellosis among farmers and their families in Ille-et-Vilaine (Brittany). Int J Epidemiol 1977; 6:335-43. [PMID: 608796 DOI: 10.1093/ije/6.4.335] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A three-stage sampling survey among farmers and their families living on farms in the department of Ille-et-Vilaine gave the following results: Among 490 persons examined 313 (64 per cent) showed a positive skin test and 105 (21 per cent) a positive serological reaction; 88 of the 105 patients ignored their health status, although 45 of these presented clinical symptoms (nine per cent). This survey is continuing in order to study the non-respondents and to better analyse the epidemiological situation at a farm level.
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