Effect of Escherichia coli and Lactobacillus rhamnosus on macrophage inflammatory protein 3 alpha, tumor necrosis factor alpha, and transforming growth factor beta release by polarized rat uterine epithelial cells in culture.

Infection and Immunity
Mardi A Crane-Godreau, Charles R Wira

Abstract

Entry of bacteria from the vagina into the uterus raises the question of uterine epithelial cell (UEC) signaling in response to the presence of bacteria. Our model system helps to define microbially elicited UEC basolateral cytokine release, important in regulating underlying stromal immune cell protection. UECs from adult rats were grown in cell culture inserts to establish a confluent polarized monolayer as was determined by transepithelial resistance (TER). Polarized epithelial cell cultures were treated apically with live or heat-killed Escherichia coli or Lactobacillus rhamnosus prior to collection of basolateral media after 24 h of incubation. Coculture of polarized UECs with live E. coli had no effect on epithelial cell TER. In response to exposure to live E. coli, epithelial cell basolateral release of macrophage inflammatory protein 3 alpha (MIP3 alpha) and tumor necrosis factor alpha (TNF-alpha) increased at a time when basolateral release of biologically active transforming growth factor beta (TGF-beta) decreased. Incubation of UECs with heat-killed E. coli resulted in an increased basolateral release of MIP3 alpha and TNF-alpha, without affecting TER or TGF-beta. In contrast to E. coli, live or heat-killed L. rhamno...Continue Reading

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Citations

Sep 16, 2015·International Journal of Medical Microbiology : IJMM·Antonietta RizzoNazario Bevilacqua
Mar 26, 2005·American Journal of Reproductive Immunology : AJRI·Charles R WiraMargaret A Crane-Godreau
Apr 14, 2007·American Journal of Reproductive Immunology : AJRI·Sherie FernandezCharu Kaushic
Dec 13, 2006·American Journal of Reproductive Immunology : AJRI·Stefan FestG Mor

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