Pentraxins and Collectins: Friend or Foe during Pathogen Invasion?

Trends Microbiol. 2015 Dec;23(12):799-811. doi: 10.1016/j.tim.2015.09.006. Epub 2015 Oct 17.

Abstract

Innate immunity serves as the frontline defence against invading pathogens. Despite decades of research, new insights are constantly challenging our understanding of host-elicited immunity during microbial infections. Recently, two families of humoral innate immune proteins, pentraxins and collectins, have become a major focus of research in the field of innate immunity. Pentraxins and collectins are key players in activating the humoral arm of innate immunity, taking centre stage in immunoregulation and disease modulation. However, increasing evidence suggests that pentraxins and collectins can also mediate pathogenic effects during some infections. Herein, we discuss the protective and pathogenic effects of pentraxins and collectins, as well as their therapeutic significance.

Keywords: collectins; humoral innate immunity; mannose-binding lectin; pathogens; pentraxin 3; pentraxins.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Bacterial Infections / immunology
  • C-Reactive Protein / immunology*
  • C-Reactive Protein / therapeutic use
  • Collectins / immunology*
  • Collectins / therapeutic use
  • Ficolins
  • Host-Pathogen Interactions / immunology
  • Humans
  • Immunity, Humoral
  • Immunity, Innate / immunology*
  • Inflammation / immunology
  • Lectins / immunology
  • Mannose-Binding Lectin / chemistry
  • Mannose-Binding Lectin / immunology
  • Mannose-Binding Lectin / metabolism
  • Models, Biological
  • Pulmonary Surfactant-Associated Protein A / immunology
  • Pulmonary Surfactant-Associated Protein D / immunology
  • Serum Amyloid P-Component / immunology
  • Serum Amyloid P-Component / therapeutic use

Substances

  • Collectins
  • Lectins
  • Mannose-Binding Lectin
  • Pulmonary Surfactant-Associated Protein A
  • Pulmonary Surfactant-Associated Protein D
  • Serum Amyloid P-Component
  • PTX3 protein
  • C-Reactive Protein