Small leucine-rich repeat proteoglycans in corneal inflammation and wound healing

Jihane Frikeche, George Maiti, Shukti Chakravarti

Research output: Contribution to journalReview articlepeer-review

Abstract

The small leucine rich repeat proteoglycans are major components of the cornea. Lumican, keratocan, decorin, biglycan and osteoglycin are present throughout the adult corneal stroma, and fibromodulin in the peripheral limbal area. In the cornea literature these proteoglycan have been reviewed as structural, collagen fibril-regulating proteins of the cornea. However, these proteoglycans are members of the leucine-rich-repeat superfamily, and share structural similarities with pathogen recognition toll-like receptors. Emerging studies are showing that these have a range of interactions with cell surface receptors, chemokines, growth factors and pathogen associated molecular patterns and are able to regulate host immune response, inflammation and wound healing. This review discusses what is known about their innate immune-related role directly in the cornea, and studies outside the field that find interesting links with innate immune and wound healing responses that are likely to be relevant to the ocular surface. In addition, the review discusses phenotypes of mice with targeted deletion of proteoglycan genes and genetic variants associated with human pathologies.

Original languageEnglish (US)
Pages (from-to)142-149
Number of pages8
JournalExperimental Eye Research
Volume151
DOIs
StatePublished - Oct 1 2016

Keywords

  • Biglycan
  • Cornea wound healing
  • Decorin
  • Fibromodulin
  • Keratocan
  • Lumican
  • Osteoglycin
  • SLRP
  • TLR

ASJC Scopus subject areas

  • Medicine(all)
  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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