Relationship between genetic risk factors and markers for Alzheimer's disease pathology

Biomark Med. 2012 Aug;6(4):477-95. doi: 10.2217/bmm.12.56.

Abstract

Alzheimer's disease (AD) is a neurodegenerative disorder characterized by neuritic plaques (main constituent: β-amyloid [Aβ]) and neurofibrillary tangles (hyperphosphorylated tau protein) in the brain. Abnormalities in Aβ and tau can be measured upon neuropathological examination, in cerebrospinal fluid or by PET. Etiologically, a growing body of evidence suggests that susceptibility to AD is genetically controlled. However, the precise nature of the underlying risk genes and their relation to AD biomarkers remains largely elusive. To this end, we performed a qualitative review of 17 studies (covering 47 polymorphisms in 26 genes) and investigated the potential relation between the most compelling AD risk genes and markers for Aβ and tau in cerebrospinal fluid, PET imaging and neuropathological examination. Of all covered genes, only APOE and PICALM showed consistent effects on Aβ but not on tau, while no obvious effects were observed for CLU, CR1, ACE, SORL and MAPT.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Adaptor Proteins, Signal Transducing / genetics
  • Adaptor Proteins, Signal Transducing / metabolism
  • Alzheimer Disease / genetics*
  • Alzheimer Disease / metabolism
  • Alzheimer Disease / pathology
  • Apolipoproteins E / genetics
  • Apolipoproteins E / metabolism
  • Clusterin / genetics
  • Clusterin / metabolism
  • Genome-Wide Association Study
  • Humans
  • Monomeric Clathrin Assembly Proteins / genetics
  • Monomeric Clathrin Assembly Proteins / metabolism
  • Nuclear Proteins / genetics
  • Nuclear Proteins / metabolism
  • Polymorphism, Genetic
  • Receptors, Complement 3b / genetics
  • Receptors, Complement 3b / metabolism
  • Risk Factors
  • Tumor Suppressor Proteins / genetics
  • Tumor Suppressor Proteins / metabolism

Substances

  • Adaptor Proteins, Signal Transducing
  • Apolipoproteins E
  • BIN1 protein, human
  • CLU protein, human
  • CR1 protein, human
  • Clusterin
  • Monomeric Clathrin Assembly Proteins
  • Nuclear Proteins
  • PICALM protein, human
  • Receptors, Complement 3b
  • Tumor Suppressor Proteins