CNS Drugs

, Volume 22, Issue 1, pp 1–14

The Role of Peroxisome Proliferator-Activated Receptor-γ PPARγ) in Alzheimer’s Disease

Therapeutic Implications
  • Qingguang Jiang
  • Michael Heneka
  • Gary E. Landreth
Leading Article

DOI: 10.2165/00023210-200822010-00001

Cite this article as:
Jiang, Q., Heneka, M. & Landreth, G.E. CNS Drugs (2008) 22: 1. doi:10.2165/00023210-200822010-00001

Abstract

Alzheimer’s disease is a complex neurodegenerative disorder, with aging, genetic and environmental factors contributing to its development and progression. The complexity of Alzheimer’s disease presents substantial challenges for the development of new therapeutic agents. Alzheimer’s disease is typified by pathological depositions of β-amyloid peptides and neurofibrillary tangles within the diseased brain. It has also been demonstrated to be associated with a significant microglia-mediated inflammatory component, dysregulated lipid homeostasis and regional deficits in glucose metabolism within the brain. The peroxisome proliferator-activated receptor-γ (PPARγ) is a prototypical ligand-activated nuclear receptor that coordinates lipid, glucose and energy metabolism, and is found in elevated levels in the brains of individuals with Alzheimer’s disease. A recently appreciated physiological function of this type of receptor is its ability to modulate inflammatory responses. In animal models of Alzheimer’s disease, PPARγ agonist treatment results in the reduction of amyloid plaque burden, reduced inflammation and reversal of disease-related behavioural impairment. In a recent phase II clinical trial, the use of the PPARγ agonist rosiglitazone was associated with improved cognition and memory in patients with mild to moderate Alzheimer’s disease. Thus, PPARγ may act to modulate multiple pathophysiological mechanisms that contribute to Alzheimer’s disease, and represents an attractive therapeutic target for the treatment of the disease.

Copyright information

© Adis Data Information BV 2008

Authors and Affiliations

  • Qingguang Jiang
    • 1
  • Michael Heneka
    • 2
  • Gary E. Landreth
    • 1
  1. 1.Department of Neurosciences, Alzheimer Research LaboratorySchool of Medicine, Case Western Reserve UniversityClevelandUSA
  2. 2.Department of Neurology, Molecular Neurobiology UnitUniversity of MunsterMunsterGermany