Targeting FcRn to Generate Antibody-Based Therapeutics

Trends Pharmacol Sci. 2018 Oct;39(10):892-904. doi: 10.1016/ Epub 2018 Aug 22.


The MHC class I-related receptor FcRn serves multiple roles ranging from the regulation of levels of IgG isotype antibodies and albumin throughout the body to the delivery of antigen into antigen loading compartments in specialized antigen-presenting cells. In parallel with studies directed towards understanding FcRn at the molecular and cellular levels, there has been an enormous expansion in the development of engineering strategies involving FcRn to modulate the dynamic behavior of antibodies, antigens, and albumin. In this review article, we focus on a discussion of FcRn-targeted approaches that have resulted in the production of novel antibody-based platforms with considerable potential for use in the clinic.

Keywords: FcRn; FcRn-targeted therapeutics; antibody engineering; pharmacokinetics.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Review

MeSH terms

  • Animals
  • Antigen-Antibody Complex
  • Histocompatibility Antigens Class I*
  • Humans
  • Immunoglobulin G*
  • Protein Transport
  • Receptors, Fc*


  • Antigen-Antibody Complex
  • Histocompatibility Antigens Class I
  • Immunoglobulin G
  • Receptors, Fc
  • Fc receptor, neonatal