Impaired Regeneration Contributes to Poor Outcomes in Diabetic Peripheral Artery Disease.

Gian Paolo Fadini, Gaia Spinetti, Marianna Santopaolo, Paolo R Madeddu

Research output: Contribution to journalReview article (Academic Journal)

Abstract

Diabetes mellitus increases the risk and accelerates the course of peripheral artery disease, making patients more susceptible to ischemic events and infections and delaying tissue healing. Current understanding of pathogenic mechanisms is mainly based on the negative influence of diabetes mellitus on atherosclerotic disease and inflammation. In recent years, the novel concept that diabetes mellitus can impinge on endogenous regenerative processes has been introduced. Diabetes mellitus affects regeneration at the local level, disturbing proper angiogenesis, collateral artery formation, and muscle repair. Recent evidence indicates that an impairment in vascular mural cells, alias pericytes, may participate in diabetic peripheral vasculopathy. Moreover, the bone marrow undergoes a global remodeling, consisting of microvessels and sensory neurons rarefaction and fat accumulation, which creates a hostile microenvironment for resident stem cells. Bone marrow remodeling is also responsible for detrimental systemic effects. In particular, the aid of reparative cells from the bone marrow is compromised: these elements are released in an improper manner and become harmful vectors of inflammatory and antiangiogenic molecules and noncoding RNAs. This new understanding of impaired regeneration is inspiring new therapeutic options for the treatment of ischemic complications in people with diabetes mellitus.
Original languageEnglish
Pages (from-to)34–44
Number of pages11
JournalArteriosclerosis, Thrombosis, and Vascular Biology
Volume40
Issue number1
Early online date2 Sep 2019
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • humans
  • stem cells
  • regeneration
  • bone marrow
  • Ischemia

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