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Benzoxazole-derivatives enhance progranulin expression and reverse the aberrant lysosomal proteome caused by GRN haploinsufficiency.

Rachel Tesla | Charlotte Guhl | Gordon C Werthmann | Danielle Dixon | Basar Cenik | Yesu Addepalli | Jue Liang | Daniel M Fass | Zachary Rosenthal | Stephen J Haggarty | Noelle S Williams | Bruce A Posner | Joseph M Ready | Joachim Herz
Nature communications | 2024

Heterozygous loss-of-function mutations in the GRN gene are a major cause of hereditary frontotemporal dementia. The mechanisms linking frontotemporal dementia pathogenesis to progranulin deficiency are not well understood, and there is currently no treatment. Our strategy to prevent the onset and progression of frontotemporal dementia in patients with GRN mutations is to utilize small molecule positive regulators of GRN expression to boost progranulin levels from the remaining functional GRN allele, thus restoring progranulin levels back to normal within the brain. This work describes a series of blood-brain-barrier-penetrant small molecules which significantly increase progranulin protein levels in human cellular models, correct progranulin protein deficiency in Grn+/- mouse brains, and reverse lysosomal proteome aberrations, a phenotypic hallmark of frontotemporal dementia, more efficiently than the previously described small molecule suberoylanilide hydroxamic acid. These molecules will allow further elucidation of the cellular functions of progranulin and its role in frontotemporal dementia and will also serve as lead structures for further drug development.

Pubmed ID: 39033178

Research resources used in this publication

None found

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Associated grants

  • Agency: NINDS NIH HHS, United States
    Id: R01 NS093382
  • Agency: U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS),
    Id: NS108115,
  • Agency: NHLBI NIH HHS, United States
    Id: R01 HL063762
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS108115
  • Agency: NIA NIH HHS, United States
    Id: RF1 AG053391
  • Agency: NCI NIH HHS, United States
    Id: P30 CA142543
  • Agency: BrightFocus Foundation (BrightFocus),
    Id: A20135245
  • Agency: U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS),
    Id: NS093382,
  • Agency: NHLBI NIH HHS, United States
    Id: R37 HL063762
  • Agency: BrightFocus Foundation (BrightFocus),
    Id: A2016396S
  • Agency: U.S. Department of Health & Human Services | NIH | National Institute on Aging (U.S. National Institute on Aging),
    Id: AG053391

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