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DOMENICO LIO

TLR4 POLYMORPHISMS AND AGEING: IMPLICATIONS FOR THE PATHOPHYSIOLOGY OF AGE-RELATED DISEASES

  • Autori: Balistreri, C.; COLONNA ROMANO, G.; Lio, D.; Candore, G.; Caruso, C.
  • Anno di pubblicazione: 2009
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: Ageing;longevity; innate immunity; TLR4; SNP; atherosclerosis;Alzheimer’s disease; cancer
  • OA Link: http://hdl.handle.net/10447/46609

Abstract

Innate immunity provides a first line of host defense against infection by recognizing and killing microbes while simultaneously activating an instructive immune response. Toll-like receptors (TLRs) are principal mediators of rapid microbial recognition and function mainly by detection of pathogen-associated molecular patterns that do not exist in the host. Recognition of their ligands leads to a series of signaling events resulting in acute host responses, involved in killing pathogens. Discussion We describe the involvement of TLR4 polymorphisms in ageing, and in particular in age-related diseases, suggesting the crucial role of molecules of innate immunity in pathophysiology of these diseases. Hence, we observed that pro-inflammatory alleles may be related to unsuccessful ageing, such as Alzheimer’s disease, prostate cancer, and atherosclerosis; in contrast, the control of inflammation by anti-inflammatory alleles may result in increased longevity and successful ageing. Finally, a possible therapeutic approach to delay age-related diseases is outlined.