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Caprine mucopolysaccharidosis-IIID: clinical, biochemical, morphological and immunohistochemical characteristics. 1998

M Z Jones, and J Alroy, and P J Boyer, and K T Cavanagh, and K Johnson, and D Gage, and J Vorro, and J A Render, and R S Common, and R A Leedle, and C Lowrie, and P Sharp, and S S Liour, and B Levene, and H Hoard, and R Lucas, and J J Hopwood
Department of Pathology, Michigan State University, East Lansing 48824, USA.

Several animal models have been developed for the mucopolysaccharidoses (MPSs), a group of lysosomal storage disorders caused by lysosomal hydrolase deficiencies that disrupt the catabolism of glycosaminoglycans (GAG). Among the MPS, the MPS-III (Sanfilippo) syndromes lacked an animal counterpart until recently. In this investigation of caprine MPS-IIID, the clinical, biochemical, morphological, and immunohistochemical studies revealed severe and mild phenotypes like those observed in human MPS III syndromes. Both forms of caprine MPS IIID result from a nonsense mutation and consequent deficiency of lysosomal N-acetylglucosamine 6-sulfatase (G6S) activity and are associated with tissue storage and urinary excretion of heparan sulfate (HS). Using special stains, immunohistochemistry, and electron microscopy, secondary lysosomes filled with GAG were identified in most tissues from affected goats. Primary neuronal accumulation of HS and the secondary storage of gangliosides were observed in the central nervous system (CNS) of these animals. In addition, morphological changes in the CNS such as neuritic expansions and other neuronal alterations that may have functional significance were also seen. The spectrum of lesions was greater in the severe form of caprine MPS IIID and included mild cartilaginous, bony, and corneal lesions. The more pronounced neurological deficits in the severe form were partly related to a greater extent of CNS dysmyelination. These findings demonstrate that caprine MPS IIID is a suitable animal model for the investigation of therapeutic strategies for MPS III syndromes.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008297 Male Males
D009084 Mucopolysaccharidosis III Mucopolysaccharidosis characterized by heparitin sulfate in the urine, progressive mental retardation, mild dwarfism, and other skeletal disorders. There are four clinically indistinguishable but biochemically distinct forms, each due to a deficiency of a different enzyme. Polydystrophic Oligophrenia,Sanfilippo's Syndrome,Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase Deficiency,Heparan Sulfate Sulfatase Deficiency,MPS 3 A,MPS 3 B,MPS 3 C,MPS 3 D,MPS III A,MPS III B,MPS III C,MPS III D,MPS IIIA,MPS IIIB,MPS IIIC,MPS IIID,MPS3A,MPS3B,MPS3C,Mucopolysaccharidosis 3,Mucopolysaccharidosis Type 3 A,Mucopolysaccharidosis Type 3 A Sanfilippo Syndrome,Mucopolysaccharidosis Type 3 B,Mucopolysaccharidosis Type 3 C,Mucopolysaccharidosis Type 3 D,Mucopolysaccharidosis Type IIIA,Mucopolysaccharidosis Type IIIB,Mucopolysaccharidosis Type IIIC,Mucopolysaccharidosis Type IIID,N-Acetyl-alpha-D-Glucosaminidase Deficiency,N-Acetylglucosamine-6-Sulfatase Deficiency,N-Acetylglucosamine-6-Sulfate Sulfatase Deficiency,NAGLU Deficiency,San Filippo's Syndrome,Sanfilippo Syndrome,Sanfilippo Syndrome A,Sanfilippo Syndrome B,Sanfilippo Syndrome C,Sanfilippo Syndrome D,Sulfamidase Deficiency,Acetyl CoA:alpha Glucosaminide N Acetyltransferase Deficiency,Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase Deficiencies,Deficiencies, Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase,Deficiencies, N-Acetyl-alpha-D-Glucosaminidase,Deficiencies, N-Acetylglucosamine-6-Sulfatase,Deficiencies, N-Acetylglucosamine-6-Sulfate Sulfatase,Deficiencies, NAGLU,Deficiencies, Sulfamidase,Deficiency, Acetyl-CoA:alpha-Glucosaminide N-Acetyltransferase,Deficiency, N-Acetyl-alpha-D-Glucosaminidase,Deficiency, N-Acetylglucosamine-6-Sulfatase,Deficiency, N-Acetylglucosamine-6-Sulfate Sulfatase,Deficiency, NAGLU,Deficiency, Sulfamidase,MPS IIIDs,Mucopolysaccharidosis IIIs,Mucopolysaccharidosis Type IIIAs,Mucopolysaccharidosis Type IIIBs,Mucopolysaccharidosis Type IIICs,Mucopolysaccharidosis Type IIIDs,N Acetyl alpha D Glucosaminidase Deficiency,N Acetylglucosamine 6 Sulfatase Deficiency,N Acetylglucosamine 6 Sulfate Sulfatase Deficiency,N-Acetyl-alpha-D-Glucosaminidase Deficiencies,N-Acetylglucosamine-6-Sulfatase Deficiencies,N-Acetylglucosamine-6-Sulfate Sulfatase Deficiencies,N-Acetyltransferase Deficiencies, Acetyl-CoA:alpha-Glucosaminide,N-Acetyltransferase Deficiency, Acetyl-CoA:alpha-Glucosaminide,NAGLU Deficiencies,Oligophrenia, Polydystrophic,Oligophrenias, Polydystrophic,Polydystrophic Oligophrenias,San Filippo Syndrome,San Filippos Syndrome,Sanfilippo Syndromes,Sanfilippos Syndrome,Sulfamidase Deficiencies,Sulfatase Deficiencies, N-Acetylglucosamine-6-Sulfate,Sulfatase Deficiency, N-Acetylglucosamine-6-Sulfate,Syndrome, San Filippo's,Syndrome, Sanfilippo,Syndrome, Sanfilippo's,Syndromes, Sanfilippo
D009131 Muscle, Smooth, Vascular The nonstriated involuntary muscle tissue of blood vessels. Vascular Smooth Muscle,Muscle, Vascular Smooth,Muscles, Vascular Smooth,Smooth Muscle, Vascular,Smooth Muscles, Vascular,Vascular Smooth Muscles
D009206 Myocardium The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow. Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D009439 Neuraminidase An enzyme that catalyzes the hydrolysis of alpha-2,3, alpha-2,6-, and alpha-2,8-glycosidic linkages (at a decreasing rate, respectively) of terminal sialic residues in oligosaccharides, glycoproteins, glycolipids, colominic acid, and synthetic substrate. (From Enzyme Nomenclature, 1992) Sialidase,Exo-alpha-Sialidase,N-Acylneuraminate Glycohydrolases,Oligosaccharide Sialidase,Exo alpha Sialidase,Glycohydrolases, N-Acylneuraminate,N Acylneuraminate Glycohydrolases,Sialidase, Oligosaccharide
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D012077 Renal Artery A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters. Arteries, Renal,Artery, Renal,Renal Arteries
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon

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