Are heat shock proteins an important link between type 2 diabetes and alzheimer disease?

Joanne Elizabeth Rowles, Kevin Noel Keane, Thiago Gomes Heck, Vinicius Cruzat, Giuseppe Verdile, Philip Newsholme

Research output: Contribution to journalReview articlepeer-review

Abstract

Type 2 diabetes (T2D) and Alzheimer’s disease (AD) are growing in prevalence worldwide. The development of T2D increases the risk of AD disease, while AD patients can show glucose imbalance due to an increased insulin resistance. T2D and AD share similar pathological features and underlying mechanisms, including the deposition of amyloidogenic peptides in pancreatic islets (i.e., islet amyloid polypeptide; IAPP) and brain (β-Amyloid; Aβ). Both IAPP and Aβ can undergo misfolding and aggregation and accumulate in the extracellular space of their respective tissues of origin. As a main response to protein misfolding, there is evidence of the role of heat shock proteins (HSPs) in moderating T2D and AD. HSPs play a pivotal role in cell homeostasis by providing cytoprotection during acute and chronic metabolic stresses. In T2D and AD, intracellular HSP (iHSP) levels are reduced, potentially due to the ability of the cell to export HSPs to the extracellular space (eHSP). The increase in eHSPs can contribute to oxidative damage and is associated with various pro-inflammatory pathways in T2D and AD. Here, we review the role of HSP in moderating T2D and AD, as well as propose that these chaperone proteins are an important link in the relationship between T2D and AD.

Original languageEnglish
Article number8204
Pages (from-to)1-20
Number of pages20
JournalInternational Journal of Molecular Sciences
Volume21
Issue number21
DOIs
Publication statusPublished - 1 Nov 2020

Keywords

  • Dementia
  • EHSP
  • Heat shock protein 70
  • IAPP
  • IHSP
  • Tau

Fingerprint Dive into the research topics of 'Are heat shock proteins an important link between type 2 diabetes and alzheimer disease?'. Together they form a unique fingerprint.

Cite this