| Revista: | Genetics and molecular biology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000459144 |
| ISSN: | 1415-4757 |
| Autors: | Sperb Ludwig, Fernanda1 Ludwig, Nataniel Floriano1 Rizowy, Gustavo Mottin1 Velho, Renata Voltolini2 Schwartz, Ida Vanessa Doederlein1 |
| Institucions: | 1Hospital de Clinicas de Porto Alegre, Porto Alegre, Rio Grande do Sul. Brasil 2Endometriosis Research Charite, Department of Gynecology Charité with Center of Oncological Surgery, Berlín. Alemania |
| Any: | 2023 |
| Volum: | 46 |
| Número: | 3 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | Mucolipidosis II and III (MLII and MLIII) are autosomal recessive diseases caused by pathogenic variants in GNPTAB and GNPTG genes that lead to defects in GlcNAc-1-phosphotransferase. This enzyme adds mannose 6-phosphate residues to lysosomal hydrolases, which allows enzymes to enter lysosomes. Defective GlcNAc-1-phosphotransferase causes substrate accumulation and inflammation. These diseases have no treatment, and we hypothesized that the use of substrate reduction therapy and immunomodulation may be beneficial at the cell level and as a future therapeutic approach. Fibroblasts from two patients with MLIII alpha/beta and 2 patients with MLIII gamma as well as from one healthy control were treated with 10 µM miglustat, 20 µM genistein, and 20 µM thalidomide independently. ELISA assay and confocal immunofluorescence microscopy were used to evaluate the presence of heparan sulfate (HS) and the impact on substrate accumulation. ELISA assay showed HS reduction in all patients with the different treatments used (p=0.05). HS reduction was also observed by immunofluorescence microscopy. Our study produced encouraging results, since the reduction in substrate accumulation, even partial, may offer benefits to the phenotype of patients with inborn errors of metabolism |
| Disciplines | Medicina |
| Paraules clau: | Inmunología, Terapéutica y rehabilitación, Chaperonas moleculares, Mucolipidosis, Genisteina, Heparan-sulfato, Fibroblastos |
| Keyword: | Immunology, Therapeutics and rehabilitation, Molecular chaperone, Mucolipidosis, Genistein, Heparan sulfate, Fibroblasts |
| Text complet: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
