Keratoconus: the possible involvement of inflammatory cytokines in its pathogenesis. An experimental study and review of the literature

Eur Rev Med Pharmacol Sci. 2021 Jul;25(13):4478-4489. doi: 10.26355/eurrev_202107_26239.

Abstract

Objective: Keratoconus (KC) is generally described as a non-inflammatory disease, characterized by thinning in the central region of the cornea with consequent tissue degradation producing impaired visual acuity.

Materials and methods: In our experimental study, we analyzed the presence and implications of several inflammatory cytokines in the corneal tissues of patients suffering from keratoconus by immunohistochemical analysis.

Results: The analysis showed increased levels of inflammatory factors in the pathological tissues compared to controls, confirming that KC cannot be considered an entirely non-inflammatory pathology and that its etiopathogenesis includes several chronic inflammatory events.

Conclusions: In the light of these results, the classification of KC as an inflammatory pathology or as a pathology related to inflammation might be useful in directing future research aimed at developing effective anti-inflammatory therapies to pharmacologically target the inflammatory mediators which contribute to the development and progression of the disease.

Publication types

  • Clinical Trial

MeSH terms

  • Adult
  • Aged
  • Anti-Inflammatory Agents / pharmacology*
  • Anti-Inflammatory Agents / therapeutic use
  • Case-Control Studies
  • Cornea / immunology
  • Cornea / metabolism*
  • Cornea / pathology
  • Cornea / surgery
  • Corneal Transplantation
  • Cytokines / analysis
  • Cytokines / antagonists & inhibitors
  • Cytokines / metabolism*
  • Female
  • Humans
  • Immunohistochemistry
  • Inflammation / immunology
  • Inflammation / pathology
  • Inflammation / therapy
  • Inflammation Mediators / analysis
  • Inflammation Mediators / antagonists & inhibitors
  • Inflammation Mediators / metabolism*
  • Keratoconus / immunology*
  • Keratoconus / pathology
  • Keratoconus / therapy
  • Male
  • Middle Aged
  • Young Adult

Substances

  • Anti-Inflammatory Agents
  • Cytokines
  • Inflammation Mediators