Basic Science and Pathogenesis

Alzheimers Dement. 2024 Dec:20 Suppl 1:e084846. doi: 10.1002/alz.084846.

Abstract

Background: Frontotemporal dementia is the most common form of dementia impacting those under the age of 60. It is estimated that 30% of affected persons have a genetic predisposition to this disease, with mutations in the genes encoding progranulin (GRN), chromosome 9 open reading frame 72(C9orf72), and microtubule associated protein tau (MAPT). Mutations in MAPT were discovered in 1998, yet to date, there have been no therapies or multisite clinical trials available to families.

Method: To coordinate the sharing of information and advocacy efforts, a group of family kindreds impacted by MAPT created a non-profit organization and database for families in November 2023.

Result: Spanning over 5 generations across the United States, Canada, and Europe, we have identified 17 family kindreds with 70 members living or deceased with symptomatic disease, 22 presymptomatic positive carriers, 34 tested negative/non-carriers, and 116 at risk or untested family members.

Conclusion: We are aware of the burden of this disease on patients and families and the lack of resources to efficiently diagnose and treat FTD. We are working collaboratively with other genetic FTD organizations and institutions to further reach MAPT families in an international effort to provide support for MAPT families and gene carriers, identify areas for advocacy, promote research, and to contribute to future therapeutics. Fueled by the past trauma of watching my loved ones succumb to FTD, terrified of how FTD will dictate my future, and fighting for those whose minds are currently failing them.

MeSH terms

  • C9orf72 Protein / genetics
  • Canada
  • Europe
  • Female
  • Frontotemporal Dementia* / genetics
  • Genetic Predisposition to Disease
  • Humans
  • Male
  • Middle Aged
  • Mutation
  • Progranulins / genetics
  • United States
  • tau Proteins* / genetics

Substances

  • tau Proteins
  • MAPT protein, human
  • Progranulins
  • C9orf72 Protein
  • C9orf72 protein, human
  • GRN protein, human