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Tay-Sachs, Canavan, Sandhoff, GM1 and related diseases

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pdf Intravenous administration of scAAV9-Hexb normalizes lifespan and prevents pathology in Sandhoff disease mice New

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Niemir et al 2018 SD IV AAV9.pdf

Intravenous administration of scAAV9-Hexb normalizes lifespan and prevents pathology in Sandhoff disease mice

Niemir N, Rouvière L, Besse A, Vanier MT, Dmytrus J, Marais T, Astord S, Puech JP, Panasyuk, Cooper JD, Barkats M, Caillaud C.

Adeno-associated virus (AAV) gene therapy has shown much promise for inherited diseases. Most recently, non-invasive delivery routes such as intravenous injection of AAV have been evaluated in a number of inherited diseases. In fact, clinical trials are underway utilizing intravenous AAV gene therapy for MPSIIIA and Spinal Muscular Atrophy. In January of 2018 a paper was published detailing a study evaluating intravenous AAV gene therapy in a mouse model of Sandhoff disease. 

pdf Haematopoietic Stem Cell Transplantation Arrests the Progression of Neurodegenerative Disease in Late-Onset Tay-Sachs Disease

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stephien et al_researchreport_Dec2017.pdf

On December 7th a case study was published detailing results of bone marrow transplantation in a juvenile Tay-Sachs patient. The patient initially presented at age 7 with tremors and symptoms progressed to include ataxia, speech stammer, and swallowing problems. At the age of 15 he was diagnosed with juvenile TSD. In light of his deteriorating neurological function, the patient underwent preconditioning with busulfan, a chemotherapy agent, followed by a hematopoietic stem cell transplant (HSCT) from a matched sibling donor, and a post-transplant immunosuppression regimen. To date the patient is 23 years of age and 8 years post-HSCT has retained full donor chimerism (his white blood cells are those from the donor) and normal white blood cell Hexosaminidase A (the enzyme deficient in TSD) levels. The patient has demonstrated stabilization of his neurologic regression with improvement in swallowing dysfunction and no change in the severity of tremor. MRI of the brain at 12 months, 4 years, and 8 years post-HSCT showed no progression compared to pre-transplant scans. 

Karolina M. Stepien • Su Han Lum • J. Edmond Wraith • Christian J. Hendriksz • Heather J. Church • David Priestman • Frances M. Platt • Simon Jones • Ana Jovanovic • Robert Wynn

pdf Intracerebroventricular delivery of hematopoietic progenitors results in rapid and robust engraftment of microglia-like cells

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Capotondo et al_SciADv_dec2017 _1_.pdf

A new study published December 6th led by Dr. Alessandra Biffi, the director of the gene therapy program at Dana-Farber/Boston Children’s Cancer and Blood Disorders Center, details a new promising approach to lentiviral gene therapy. Dr. Biffi is currently evaluating this same approach as a therapy for Tay-Sachs and Sandhoff diseases in a NTSAD-funded study entitled “Proof of concept study of HSC gene therapy for Tay-Sachs disease”.

Alessia Capotondo, Rita Milazzo, Jose M. Garcia-Manteiga, Eleonora Cavalca, Annita Montepeloso, Brian S. Garrison, Marco Peviani, Derrick J. Rossi, Alessandra Biffi

pdf Families and Researchers Collaborate in Advancing Therapy: The Role of NTSAD, Together with Parents, in Driving Toward Treatments Popular

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HGT-Feb-2017-SKahn.pdf

‘‘IS THERE A TREATMENT?’’ are always the first words uttered when a parent or relative of a newly diagnosed child contacts National Tay-Sachs & Allied Diseases Association (NTSAD) upon hearing the devastating news that their loved one was diagnosed with one of the life-limiting diseases supported by NTSAD. The simple answer is always the same: ‘‘There are no treatments.’’ But first we try to inject hope by telling them about the ongoing research, especially in gene therapy, as it has received much NTSAD research grant support for a number of years and has produced promising results in animal models. Investigational new drug (IND)-enabling studies are in process; we remain optimistic for reaching the next major milestone and then hopefully demonstrating efficacy in affected children or adults.

pdf Effect of cyclic, low dose pyrimethamine treatment in patients with Late Onset Tay Sachs: an open label, extended pilot study Popular

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Cyclic pyrimethamine in LOTS - OrphJRareDis 2015.pdf

In 2009, NTSAD funded an investigator-sponsored clinical trial at Hospital for Sick Children and NYU for the treatment of late-onset with pyrimethamine (PYR) led by Drs. Joe Clarke and Ed Kolodny. The results were published in 2011. (An open-label Phase I/II clinical trial of pyrimethamine for the treatment of patients). 

The study concluded that leukocyte Hex A activity is enhanced in vivo by treatment with PYR. However, future studies were needed to assess the protocol, including dosage, and perform related biochemical studies. An Israeli team of researchers performed similar studies and recently published their results. 

While they also found that PYR increases HexA activity in LOTS patients, "the observed increase is repeatedly transient and not associated with discernible beneficial neurological or psychiatric effects." 

pdf European-Journal-of-Medical-Genetics_Miglustat-Ketogenic-Sandhoff Popular

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Villamizar-Schiller-Miglustat-and-Ketogenic-Diet.pdf

Clinical report on neurological and cardiac responses after treatment with miglustat and a ketogenic diet in a patient with Sandhoff disease.

pdf Science Trans-Medicine Long-term Follow-up for GT for Canavan Leone Popular

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lrScienceTranslationalMedicineLeone-2012 (2).pdf

Published paper in Science Translational Medicine AAAS 2012 regarding the Long-term follow-up after gene therapy for Canavan Disease. Paola Leone, et al.

pdf PNAS Cachon Gonzalez et al TS Effective Gene Therapy 12 2006 Popular

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PNAS_Cachon-Gonzalez-et-al_TS-Effective-Gene-Therapy_12-2006.pdf

A publication on:

Effective gene therapy in an authentic model of Tay-Sachs-related diseases

pdf PLoS Mice Lysosomal HexA Popular

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PLoS_Mice-Lysosomal-HexA.pdf

A publication containing:

Mice Doubly-Deficient in Lysosomal Hexosaminidase A and Neuraminidase 4 Show Epileptic Crises and Rapid Neuronal Loss

pdf PLoS Novel Patient Cell Based HTS Assay Small Molecules Maegawa 2011 Popular

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PLoS_Novel-Patient-Cell-Based-HTS-Assay-Small Molecules_Maegawa_2011.pdf

A publication written about:

Novel Patient Cell-Based HTS Assay for Identification of Small Molecules for a Lysosomal Storage Disease

pdf Nature Medicine 2007 Stem Cells Multiple Mechanisms Lee Seyfried Platt Snyder Popular

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Nature-Medicine_2007_Stem-Cells-Multiple-Mechanisms_Lee_Seyfried_Platt_Snyder.pdf

A publication on how:


Stem cells act through multiple mechanisms to benefit mice with neurodegenerative metabolic disease

pdf Neurology 2006 LOTS Adverse Effects Medications Shapiro Popular

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Neurology_2006_LOTS-Adverse-Effects-Medications_Shapiro.pdf

A publication on the:

Late-onset Tay–Sachs disease: Adverse effects of medications and implications for treatment

pdf Natural History of Infantile GM2 Gangliosidosis, Pediatrics, Bley et al 2011 95 95 Popular

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Natural History of Infantile GM2 Gangliosidosis, Pediatrics, Bley et al 2011.95.95.pdf

A publication of the:

Natural History of Infantile GM2 Gangliosidosis

pdf Nature America GeneTherapy Biotechnology article 07 2012 Popular

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Nature-America_GeneTherapy_Biotechnology-article_07-2012.pdf

A publication including:


Gene therapy matures in the clinic

pdf Molecular Brain Research Kyrkanides et al 2005 Popular

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Molecular-Brain-Research_Kyrkanides_et_al_2005.pdf

A publication including:

h-hexosaminidase lentiviral vectors: transfer into the CNS via systemic administration.

pdf Molecular Genetics and Metabolism Jan 2011 Pyrimethamine Clarke Popular

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Molecular-Genetics-and-Metabolism_Jan-2011_Pyrimethamine-Clarke.pdf

A publication containing:

An open-label Phase I/II clinical trial of pyrimethamine for the treatment of patients affected with chronic GM2 gangliosidosis (Tay–Sachs or Sandhoff variants)

pdf Journal of Neuroimmunology Pathway Treatment Neuro Kyrkanides 2009 Popular

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Journal-of-Neuroimmunology_Pathway-Treatment-Neuro_Kyrkanides-2009.pdf

A publication including:

The trigeminal retrograde transfer pathway in the treatment of neurodegeneration

pdf Human Molecular Genetics Combo therapies for LSD Hawkins Sands Popular

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Human-Molecular-Genetics_Combo-therapies-for-LSD_Hawkins-Sands.pdf

A publication containing:

Combination therapies for lysosomal storage disease: is the whole greater than the sum of its parts?

pdf Journal of Neurochemistry GM1 Platt Seyfried Kasperzyk Popular

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Journal-of-Neurochemistry_GM1_Platt-Seyfried-Kasperzyk.pdf

A publication containing:

N-butyldeoxygalactonojirimycin reduces neonatal brain ganglioside content in a mouse model of GM1 gangliosidosis

pdf ASGCT Cachon Gonzalez et al 2012 GM2 Enzyme Flow Popular

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ASGCT_Cachon-Gonzalez-et-al-2012_GM2-Enzyme-Flow.pdf

A publication containing:

Gene Transfer Corrects Acute GM2, Gangliosidosis—Potential Therapeutic Contribution of Perivascular Enzyme Flow

pdf Lysosomal Storage Disease Research Consortium Funded projects Popular

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LSDRC funded projects.pdf

A list of the lysosomal storage disease research funded projects.

 

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