FN Archimer Export Format PT J TI Low-molecular weight sulfated marine polysaccharides: Promising molecules to prevent neurodegeneration in mucopolysaccharidosis IIIA? BT AF Veraldi, Noemi Quadri, Isabelle Dentand van de Looij, Yohan Modernell, Laura Malaguti Sinquin, Corinne Zykwinska, Agata Tournier, Benjamin B. Dalonneau, Fabien Li, Honglian Li, Jin-Ping Millet, Philippe Vives, Romain COLLIEC JOUAULT, Sylvia de Agostini, Ariane Farias Sanches, Eduardo Sizonenko, Stéphane V. AS 1:1;2:2;3:3,4;4:4;5:5;6:5;7:6;8:7;9:8;10:8;11:6;12:7;13:5;14:1,2;15:4;16:4; FF 1:;2:;3:;4:;5:PDG-RBE-MASAE-LEMMMB;6:PDG-RBE-MASAE-LEMMMB;7:;8:;9:;10:;11:;12:;13:PDG-RBE-MASAE-LEMMMB;14:;15:;16:; C1 Division of Clinical Pathology, Department of Diagnostics, Geneva University Hospitals, Geneva, Switzerland Department of Pathology and Immunology, Faculty of Medicine, Geneva University, Geneva, Switzerland Center for Biomedical Imaging, Animal Imaging Technology section, Federal Polytechnic School of Lausanne, Lausanne, Switzerland Division of Development and Growth, Department of Pediatrics & Gynecology & Obstetrics, Children's Hospital, Geneva University Hospitals, Geneva, Switzerland Ifremer, Atlantic Center, MASAE, Nantes, France Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland University of Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France Department of Medical Biochemistry and Microbiology, Uppsala University, Sweden C2 UNIV GENEVA, SWITZERLAND UNIV GENEVA, SWITZERLAND EPFL, SWITZERLAND DIVISION OF DEVELOPMENT AND GROWTH, SWITZERLAND IFREMER, FRANCE UNIV GENEVA, SWITZERLAND UNIV GRENOBLE ALPES, FRANCE UNIV UPPSALA, SWEDEN SI NANTES SE PDG-RBE-MASAE-LEMMMB IN WOS Ifremer UPR copubli-france copubli-europe copubli-univ-france copubli-int-hors-europe IF 11.2 TC 1 UR https://archimer.ifremer.fr/doc/00847/95880/103765.pdf https://archimer.ifremer.fr/doc/00847/95880/103766.pdf LA English DT Article DE ;Heparan sulfate;Mucopolysaccharidosis;Marine polysaccharides;Magnetic spectroscopy resonance AB Mucopolysaccharidosis IIIA is a hereditary disease caused by mutations in the sulfamidase enzyme that participates in catabolism of heparan sulfate (HS), leading to HS fragment accumulation and multisystemic failure. No cure exists and death occurs around the second decade of life. Two low molecular weight highly sulfated compounds derived from marine diabolican and infernan exopolysaccharides (A5_3 and A5_4, respectively) with heparanase inhibiting properties were tested in a MPSIIIA cell line model, resulting in limited degradation of intracellular HS. Next, we observed the effects of intraperitoneal injections of the diabolican derivative A5_3 from 4 to 12 weeks of age on MPSIIIA mice. Brain metabolism and microstructure, levels of proteins and genes involved in MPSIIIA brain pathophysiology were also investigated. 1H-Magnetic Resonance Spectroscopy (MRS) indicated deficits in energetic metabolism, tissue integrity and neurotransmission at both 4 and 12 weeks in MPSIIIA mice, with partial protective effects of A5_3. Ex-vivo Diffusion Tensor Imaging (DTI) showed white matter microstructural damage in MPSIIIA, with noticeable protective effects of A5_3. Protein and gene expression assessments displayed both pro-inflammatory and pro-apoptotic profiles in MPSIIIA mice, with benefits of A5_3 counteracting neuroinflammation. Overall, derivative A5_3 was well tolerated and was shown to be efficient in preventing brain metabolism failure and inflammation, resulting in preserved brain microstructure in the context of MPSIIIA. PY 2023 PD NOV SO Carbohydrate Polymers SN 0144-8617 PU Elsevier BV VL 320 UT 001047329400001 DI 10.1016/j.carbpol.2023.121214 ID 95880 ER EF