Protective effects of Cathelicidin against glomerulonephritis through promotion of host defense


 

Abstract

Cathelicidin-related antimicrobial peptides are a family of polypeptides found in lysosomes of macrophages and polymorphonuclear leukocytes (PMNs). Some of these peptides can assume an alpha-helical conformation, others contain one or two disulfide bonds, still others are Pro- and Arg-rich, or Trp-rich. Higher levels of human cathelicidin antimicrobial protein (hCAP18), which are up-regulated by vitamin D, appear to significantly reduce the risk of death from infection in dialysis patients. Using in vitro and in vivo models of kidney infection, we demonstrate key antimicrobial and host immunomodulatory properties of cathelicidins. To directly assess the role of endogenous cathelicidin in the development of glomerulonephritis, WT and mCRAMP KO mice were provided with 5% DSS to induce glomerulonephritis. Some mice groups were administered with E. coli DNA I.P. Our findings showed that mCRAMP KO mice develop more severe glomerulonephritis. These data demonstrate key roles for cathelicidins in host defense against glomerulonephritis and the potential to inform the development of synthetic analogues to modulate specific host-pathogen interactions as novel antimicrobial therapeutics.

Key words: Cathelicidin; Glomerulonephritis; E. coli DNA; mCRAMP KO mice

Copyright © 2014 by The American Society for BioMedicine and BM-Publisher, Inc.

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Review Article
DOI: http://dx.doi.org/10.18081/2333-5106/014-08/189-198
American Journal of BioMedicine 2014, Volume 2, Issue 3, pages 189-198
Received 11 March 2014; accepted June 21, 2014, Published August 30, 2014

How to cite this article
Bahl AH, Lee W, Song SJ, Geren NR, Haas CM, Ekong YH, Wittmann GD. Protective effects of Cathelicidin against glomerulonephritis through promotion of host defense. American Journal of BioMedicine 2014;2(3):189-198.

Case report outline
1. Abstract
2. Keywords
3. Introduction
4. Methods
5. Results
6. Discussion
7. References

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