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Related Experiment Videos

Presenilin-interacting proteins.

Qi Chen1, David Schubert

  • 1Cellular Neurobiology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. qchen@salk.edu

Expert Reviews in Molecular Medicine
|October 31, 2003
PubMed
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Familial Alzheimer's disease (FAD) involves mutations in APP, PS1, and PS2 genes. This review details proteins interacting with PS1/PS2, exploring their functions and therapeutic potential for Alzheimer's disease (AD).

Area of Science:

  • Neuroscience
  • Genetics
  • Molecular Biology

Background:

  • Familial Alzheimer's disease (FAD) constitutes 5-10% of Alzheimer's disease (AD) cases.
  • Missense mutations in amyloid precursor protein (APP), presenilin 1 (PS1), and presenilin 2 (PS2) genes are linked to FAD, with most mutations in PS1.
  • Identifying proteins interacting with PS1 and PS2 is crucial due to their established roles in FAD.

Purpose of the Study:

  • To review proteins functionally interacting with presenilin 1 (PS1) and presenilin 2 (PS2).
  • To discuss the probable biological functions of well-studied PS-interacting proteins.
  • To explore the contribution of PS-interacting pathways to novel therapeutic strategies for Alzheimer's disease.

Main Methods:

  • Literature review of studies identifying and characterizing proteins interacting with PS1 and PS2.

Related Experiment Videos

  • Analysis of the functional roles of specific interacting proteins including APP, Notch, nicastrin, modifier of cellular adhesion (MOCA), and beta-catenin.
  • Examination of proteins involved in cell death, calcium metabolism, and cell adhesion pathways related to PS function.

    • Main Results:

    • Several proteins interact with PS1 and PS2, implicated in various cellular pathways.
    • The precise roles of many PS-interacting proteins within cellular pathways remain undefined and may be cell-type specific.
    • The physiological relevance of PS involvement in cell death pathways is questioned.

    Conclusions:

    • Understanding PS-interacting proteins offers insights into FAD pathogenesis.
    • Further research, potentially utilizing model organisms like flies and worms, is needed to clarify contradictory findings in PS research.
    • Knowledge of PS-interacting pathways is vital for developing future therapeutic interventions for Alzheimer's disease.