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McCullough KB, Titus A, Reardon K, Conyers S, Dougherty JD, Ge X, Garbow JR, Dickson P, Yuede CM, Maloney SE. Characterization of early markers of disease in the mouse model of mucopolysaccharidosis IIIB. J Neurodev Disord 2024; 16:16. [PMID: 38632525 PMCID: PMC11022360 DOI: 10.1186/s11689-024-09534-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 04/01/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Mucopolysaccharidosis (MPS) IIIB, also known as Sanfilippo Syndrome B, is a devastating childhood disease. Unfortunately, there are currently no available treatments for MPS IIIB patients. Yet, animal models of lysosomal storage diseases have been valuable tools in identifying promising avenues of treatment. Enzyme replacement therapy, gene therapy, and bone marrow transplant have all shown efficacy in the MPS IIIB model systems. A ubiquitous finding across rodent models of lysosomal storage diseases is that the best treatment outcomes resulted from intervention prior to symptom onset. Therefore, the aim of the current study was to identify early markers of disease in the MPS IIIB mouse model as well as examine clinically-relevant behavioral domains not yet explored in this model. METHODS Using the MPS IIIB mouse model, we explored early developmental trajectories of communication and gait, and later social behavior, fear-related startle and conditioning, and visual capabilities. In addition, we examined brain structure and function via magnetic resonance imaging and diffusion tensor imaging. RESULTS We observed reduced maternal isolation-induced ultrasonic vocalizations in MPS IIIB mice relative to controls, as well as disruption in a number of the spectrotemporal features. MPS IIIB also exhibited disrupted thermoregulation during the first two postnatal weeks without any differences in body weight. The developmental trajectories of gait were largely normal. In early adulthood, we observed intact visual acuity and sociability yet a more submissive phenotype, increased aggressive behavior, and decreased social sniffing relative to controls. MPS IIIB mice showed greater inhibition of startle in response to a pretone with a decrease in overall startle response and reduced cued fear memory. MPS IIIB also weighed significantly more than controls throughout adulthood and showed larger whole brain volumes and normalized regional volumes with intact tissue integrity as measured with magnetic resonance and diffusion tensor imaging, respectively. CONCLUSIONS Together, these results indicate disease markers are present as early as the first two weeks postnatal in this model. Further, this model recapitulates social, sensory and fear-related clinical features. Our study using a mouse model of MPS IIIB provides essential baseline information that will be useful in future evaluations of potential treatments.
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Affiliation(s)
- Katherine B McCullough
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Amanda Titus
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Kate Reardon
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Sara Conyers
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Joseph D Dougherty
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Xia Ge
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Joel R Garbow
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Patricia Dickson
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Carla M Yuede
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Neuroscience, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Susan E Maloney
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA.
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, 63110, USA.
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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2
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Pearse Y, Clarke D, Kan SH, Le SQ, Sanghez V, Luzzi A, Pham I, Nih LR, Cooper JD, Dickson PI, Iacovino M. Brain transplantation of genetically corrected Sanfilippo type B neural stem cells induces partial cross-correction of the disease. Mol Ther Methods Clin Dev 2022; 27:452-463. [PMID: 36419468 PMCID: PMC9672419 DOI: 10.1016/j.omtm.2022.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
Sanfilippo syndrome type B (mucopolysaccharidosis type IIIB) is a recessive genetic disorder that severely affects the brain due to a deficiency in the enzyme α-N-acetylglucosaminidase (NAGLU), leading to intra-lysosomal accumulation of partially degraded heparan sulfate. There are no effective treatments for this disorder. In this project, we carried out an ex vivo correction of neural stem cells derived from Naglu -/- mice (iNSCs) induced pluripotent stem cells (iPSC) using a modified enzyme in which human NAGLU is fused to an insulin-like growth factor II receptor binding peptide in order to improve enzyme uptake. After brain transplantation of corrected iNSCs into Naglu -/- mice and long-term evaluation of their impact, we successfully detected NAGLU-IGFII activity in all transplanted animals. We found decreased lysosomal accumulation and reduced astrocytosis and microglial activation throughout transplanted brains. We also identified a novel neuropathological phenotype in untreated Naglu -/- brains with decreased levels of the neuronal marker Map2 and accumulation of synaptophysin-positive aggregates. Upon transplantation, we restored levels of Map2 expression and significantly reduced formation of synaptophysin-positive aggregates. Our findings suggest that genetically engineered iNSCs can be used to effectively deliver the missing enzyme to the brain and treat Sanfilippo type B-associated neuropathology.
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Affiliation(s)
- Yewande Pearse
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Don Clarke
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Shih-hsin Kan
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
- CHOC Research Institute, Orange, CA 92868, USA
| | - Steven Q. Le
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Valentina Sanghez
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Anna Luzzi
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Ivy Pham
- Department of Neurology, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
| | - Lina R. Nih
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
- Department of Neurology, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
- Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Jonathan D. Cooper
- Department of Pediatrics, Washington University, Saint Louis, MO 63110, USA
| | | | - Michelina Iacovino
- Department of Pediatrics, the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
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3
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Rebiai R, Rue E, Zaldua S, Nguyen D, Scesa G, Jastrzebski M, Foster R, Wang B, Jiang X, Tai L, Brady ST, van Breemen R, Givogri MI, Sands MS, Bongarzone ER. CRISPR-Cas9 Knock-In of T513M and G41S Mutations in the Murine β-Galactosyl-Ceramidase Gene Re-capitulates Early-Onset and Adult-Onset Forms of Krabbe Disease. Front Mol Neurosci 2022; 15:896314. [PMID: 35620447 PMCID: PMC9127972 DOI: 10.3389/fnmol.2022.896314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/19/2022] [Indexed: 12/17/2022] Open
Abstract
Krabbe Disease (KD) is a lysosomal storage disorder characterized by the genetic deficiency of the lysosomal enzyme β-galactosyl-ceramidase (GALC). Deficit or a reduction in the activity of the GALC enzyme has been correlated with the progressive accumulation of the sphingolipid metabolite psychosine, which leads to local disruption in lipid raft architecture, diffuse demyelination, astrogliosis, and globoid cell formation. The twitcher mouse, the most used animal model, has a nonsense mutation, which limits the study of how different mutations impact the processing and activity of GALC enzyme. To partially address this, we generated two new transgenic mouse models carrying point mutations frequently found in infantile and adult forms of KD. Using CRISPR-Cas9 gene editing, point mutations T513M (infantile) and G41S (adult) were introduced in the murine GALC gene and stable founders were generated. We show that GALC T513M/T513M mice are short lived, have the greatest decrease in GALC activity, have sharp increases of psychosine, and rapidly progress into a severe and lethal neurological phenotype. In contrast, GALC G41S/G41S mice have normal lifespan, modest decreases of GALC, and minimal psychosine accumulation, but develop adult mild inflammatory demyelination and slight declines in coordination, motor skills, and memory. These two novel transgenic lines offer the possibility to study the mechanisms by which two distinct GALC mutations affect the trafficking of mutated GALC and modify phenotypic manifestations in early- vs adult-onset KD.
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Affiliation(s)
- Rima Rebiai
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Emily Rue
- Department of Pharmaceutical Science, College of Pharmacy, Oregon State University, Corvallis, OR, United States
| | - Steve Zaldua
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Duc Nguyen
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Giuseppe Scesa
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Martin Jastrzebski
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Robert Foster
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Bin Wang
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Xuntian Jiang
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Leon Tai
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Scott T Brady
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Richard van Breemen
- Department of Pharmaceutical Science, College of Pharmacy, Oregon State University, Corvallis, OR, United States
| | - Maria I Givogri
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Mark S Sands
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States.,Department of Genetics, Washington University School of Medicine, St. Louis, MO, United States
| | - Ernesto R Bongarzone
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
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Le SQ, Nestrasil I, Kan SH, Egeland M, Cooper JD, Elashoff D, Guo R, Tolar J, Yee JK, Dickson PI. Myelin and Lipid Composition of the Corpus Callosum in Mucopolysaccharidosis Type I Mice. Lipids 2020; 55:627-637. [PMID: 32537944 DOI: 10.1002/lipd.12261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 05/08/2020] [Accepted: 05/13/2020] [Indexed: 01/28/2023]
Abstract
Mucopolysaccharidosis type I (MPS I) is a lysosomal disease with progressive central nervous system involvement. This study examined the lipid, cholesterol, and myelin basic protein composition of white matter in the corpus callosum of MPS I mice. We studied 50 week-old, male MPS I mice and littermate, heterozygote controls (n = 12 per group). Male MPS I mice showed lower phosphatidylcholine and ether-linked phosphatidylcholine quantities than controls (p < 0.05). Twenty-two phospholipid or ceramide species showed significant differences in percent of total. Regarding specific lipid species, MPS I mice exhibited lower quantities of sphingomyelin 18:1, phosphatidylserine 38:3, and hexosylceramide d18:1(22:1) mH2 O than controls. Principal components analyses of polar, ceramide, and hexosylceramide lipids, respectively, showed some separation of MPS I and control mice. We found no significant differences in myelin gene expression, myelin basic protein, or total cholesterol in the MPS I mice versus heterozygous controls. There was a trend toward lower proteolipid protein-1 levels in MPS I mice (p = 0.06). MPS I mice show subtle changes in white matter composition, with an unknown impact on pathogenesis in this model.
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Affiliation(s)
- Steven Q Le
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA, 90502, USA.,Department of Pediatrics, Washington University School of Medicine, 660 S. Euclid, Saint Louis, MO, 63110, USA
| | - Igor Nestrasil
- Department of Pediatrics, University of Minnesota, 2450 Riverside Avenue, Minneapolis, MN, 55454, USA
| | - Shih-Hsin Kan
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA, 90502, USA.,CHOC Children's Research Institute, 2450 Riverside Avenue, Orange, CA, 55454, USA
| | - Martin Egeland
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA, 90502, USA
| | - Jonathan D Cooper
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA, 90502, USA.,Department of Pediatrics, Washington University School of Medicine, 660 S. Euclid, Saint Louis, MO, 63110, USA
| | - David Elashoff
- Department of Medicine Statistics Core, University of California, 100 Medical Plaza Driveway, Los Angeles, CA, 90095, USA
| | - Rong Guo
- Department of Medicine Statistics Core, University of California, 100 Medical Plaza Driveway, Los Angeles, CA, 90095, USA
| | - Jakub Tolar
- Department of Pediatrics, University of Minnesota, 2450 Riverside Avenue, Minneapolis, MN, 55454, USA.,Stem Cell Institute, University of Minnesota, 2001 6th Street SE, Minneapolis, MN, 55455, USA
| | - Jennifer K Yee
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA, 90502, USA
| | - Patricia I Dickson
- Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA, 90502, USA.,Department of Pediatrics, Washington University School of Medicine, 660 S. Euclid, Saint Louis, MO, 63110, USA
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5
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Liclican EL, Filler SG, Kaye J, Denny CT. Describing the dynamic translational science landscape through Core Voucher utilization. J Clin Transl Sci 2019; 3:105-112. [PMID: 31660233 PMCID: PMC6802412 DOI: 10.1017/cts.2019.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/11/2019] [Accepted: 01/15/2019] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Core facilities play crucial roles in carrying out the academic research mission by making available to researchers advanced technologies, facilities, or expertise that are unfeasible for most investigators to obtain on their own. To facilitate translational science through support of core services, the University of California, Los Angeles Clinical and Translational Science Institute (UCLA CTSI) created a Core Voucher program. The underlying premise is that by actively promoting interplay between researchers and core facilities, a dynamic feedback loop could be established that could enhance both groups, the productivity of the former and the relevance of the latter. Our primary goal was to give translational investigators what they need to pursue their immediate projects at hand. METHODS To implement this system across four noncontiguous campuses, open-source web-accessible software applications were created that were scalable and could efficiently administer investigator submissions and subsequent reviews in a multicampus fashion. RESULTS In the past five years, we have processed over 1400 applications submitted by over 750 individual faculty members across both clinical and nonclinical departments. In total, 1926 core requests were made in conjunction with 1467 submitted proposals. The top 10 most popular cores accounted for 50% of all requests, and the top half of the most popular cores accounted for 90% of all requests. CONCLUSION Tracking investigator demand provides a unique window into what are the high- and low-priority core services that best support translational research.
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Affiliation(s)
- Elvira L. Liclican
- UCLA Clinical and Translational Science Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Scott G. Filler
- Division of Infectious Diseases, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Jonathan Kaye
- Research Division of Immunology, Departments of Biomedical Sciences and Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Christopher T. Denny
- Division of Hematology/Oncology, Department of Pediatrics, Gwynne Hazen Cherry Memorial Laboratories, University of California, Los Angeles, CA, USA
- Molecular Biology Institute, University of California, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, USA
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Abstract
Mucopolysaccharidosis (MPS) type IIIA is an inherited, neurodegenerative lysosomal storage disorder resulting from mutations in the SGSH gene. Consequently, N-sulphoglucosamine sulphohydrolase enzyme activity is reduced resulting in impaired catabolism of heparan sulphate. After an asymptomatic period, patients typically show a progressive loss of cognitive and motor skills, with death often during the second decade of life. The diagnostic criteria of autism spectrum disorders (ASD) include impaired communication and social interactions, as well as displays of repetitive behaviours and fixed interests. Children with MPS-IIIA have been shown to exhibit decreased social communicative behaviours from approximately 3-4 years of age but behavioural stereotypies are mostly absent. In this study, we investigated whether a mouse model of MPS-IIIA exhibited ASD-like symptoms. The BTBR T+Itpr3tf/J inbred mouse model of autism was used as a positive control. Male MPS-IIIA and BTBR mice were less sociable compared with unaffected C57BL/6 male mice in the reciprocal social approach test administered at 20 weeks of age. Alternations in the frequency of social interactions was not evident at earlier stages of the disease course, suggesting an acquisition of ASD-like social behaviours. Stereotypical behaviours were not evident in male MPS-IIIA mice in the marble-burying test nor was the quality of nest constructed by mice affected. Collectively, these data suggest that MPS-IIIA mice acquire autistic social behaviours similar to the human condition, and thus they may be useful for elucidating symptom generating mechanisms and novel treatments for ASD.
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Affiliation(s)
- Adeline A Lau
- Childhood Dementia Research Group, Hopwood Centre for Neurobiology, Nutrition and Metabolism Theme, South Australian Health and Medical Research Institute (SAHMRI), PO Box 11060, Adelaide, South Australia, 5001, Australia.
| | - Sarah J Tamang
- Childhood Dementia Research Group, Hopwood Centre for Neurobiology, Nutrition and Metabolism Theme, South Australian Health and Medical Research Institute (SAHMRI), PO Box 11060, Adelaide, South Australia, 5001, Australia
| | - Kim M Hemsley
- Childhood Dementia Research Group, Hopwood Centre for Neurobiology, Nutrition and Metabolism Theme, South Australian Health and Medical Research Institute (SAHMRI), PO Box 11060, Adelaide, South Australia, 5001, Australia
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