Cited by 233Lysosomal Storage Disorders ResearchAmyotrophic Lateral Sclerosis ResearchAlzheimer's disease research and treatments

Rescue of a lysosomal storage disorder caused by Grn loss of function with a brain penetrant progranulin biologic

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Logan, Todd, Simon, Matthew J., Rana, Anil, Cherf, Gerald M., Srivastava, Ankita, Davis, Sonnet S., Low, Ray Lieh Yoon, Chiu, Chi-Lu +45 more·2021·Cell

Abstract

GRN mutations cause frontotemporal dementia (GRN-FTD) due to deficiency in progranulin (PGRN), a lysosomal and secreted protein with unclear function. Here, we found that Grn-/- mice exhibit a global deficiency in bis(monoacylglycero)phosphate (BMP), an endolysosomal phospholipid we identified as a pH-dependent PGRN interactor as well as a redox-sensitive enhancer of lysosomal proteolysis and lipolysis. Grn-/- brains also showed an age-dependent, secondary storage of glucocerebrosidase substrate glucosylsphingosine. We investigated a protein replacement strategy by engineering protein transport vehicle (PTV):PGRN-a recombinant protein linking PGRN to a modified Fc domain that binds human transferrin receptor for enhanced CNS biodistribution. PTV:PGRN rescued various Grn-/- phenotypes in primary murine macrophages and human iPSC-derived microglia, including oxidative stress, lysosomal dysfunction, and endomembrane damage. Peripherally delivered PTV:PGRN corrected levels of BMP, glucosylsphingosine, and disease pathology in Grn-/- CNS, including microgliosis, lipofuscinosis, and neuronal damage. PTV:PGRN thus represents a potential biotherapeutic for GRN-FTD.

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Authors
Logan, T., Simon, M. J., Rana, A., Cherf, G. M., Srivastava, A., Davis, S. S., Low, R. L. Y., Chiu, C.-L., Fang, M., Huang, F., Bhalla, A., Llapashtica, C., Prorok, R., Pizzo, M. E., Calvert, M. E. K., Sun, E. W., Hsiao-Nakamoto, J., Rajendra, Y., Lexa, K. W., Srivastava, D. B., van Lengerich, B., Wang, J., Robles-Colmenares, Y., Kim, D. J., Duque, J., Lenser, M., Earr, T. K., Nguyen, H., Chau, R., Tsogtbaatar, B., Ravi, R., Skuja, L. L., Solanoy, H., Rosen, H. J., Boeve, B. F., Boxer, A. L., Heuer, H. W., Dennis, M. S., Kariolis, M. S., Monroe, K. M., Przybyla, L., Sanchez, P. E., Meisner, R., Diaz, D., Henne, K. R., Watts, R. J., Henry, A. G., Gunasekaran, K., Astarita, G., Suh, J. H., Lewcock, J. W., DeVos, S. L., & Di Paolo, G.
Affiliations
  • Denali Therapeutics (United States) (US)
  • University of California, San Francisco (US)
  • Mayo Clinic (US)
  • Georgetown University (US)
Corresponding author
DeVos, Sarah L.
Venue
Cell
Publisher
Elsevier BV
Published
2021-09
Volume
184
Issue
18
Pages
4651-4668.e25
ISSN
0092-8674 (ISSN-L)
OpenAlex
W3195683533
Cited by
233
References
74
Citations by year
2026: 42 · 2025: 55 · 2024: 55 · 2023: 47 · 2022: 32 · 2021: 2
FWCI
22.15
Type
journal article
Language
en
Update notices
erratum (2024-03-14)
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health (R01AG031278)
  • National Institute of Neurological Disorders and Stroke (U54NS092089)
  • Association for Frontotemporal Degeneration
  • National Center for Advancing Translational Sciences
  • National Institute on Aging (U24 AG021886, U19AG063911, U01 AG045390)
  • Eisai
  • Rainwater Charitable Foundation
  • Eli Lilly and Company
Topics
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
progranulin, GRN mutations, frontotemporal dementia, lysosomal storage disease, bis(monoacylglycero)phosphate, glucosylsphingosine, protein replacement therapy, transferrin receptor, microglia, lysosomal dysfunction, oxidative stress, lipofuscinosis, microglial activation, lipolysis, lipophagy
MeSH terms
Progranulins, Animals, Biological Products, Brain, Female, Gliosis, Humans, Inflammation, Lipofuscin, Lysosomes, Macrophages, Male, Membrane Glycoproteins, Mice, Inbred C57BL, Mice, Transgenic, Nerve Degeneration, Phenotype, Receptors, Immunologic, Receptors, Transferrin, Endosomes, Tissue Distribution, Lysosomal Storage Diseases, Microglia, Bone Morphogenetic Proteins, Lipid Metabolism, Mice, Induced Pluripotent Stem Cells, Frontotemporal Dementia

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