Journal article

Role of IRG1 in Regulating Pro-inflammatory and Pro-labor Mediators in Human Myometrium

Ratana Lim, Martha Lappas



Preterm birth is a major contributor to neonatal deaths and associated long-term morbidities for the survivors, yet therapies remain elusive, given our incomplete understanding of the mechanisms driving human labor and delivery. Human labor is an inflammatory process, and we investigated whether IRG1 (immunoresponsive gene-1) plays a role in these processes. We demonstrate that IRG1 mRNA and protein expression is significantly increased in myometrium with human term labor, compared to no labor samples, and with preterm (LPS) labor in a mouse model. Pro-labor mediators such as pro-inflammatory cytokines TNF and IL1B, and TLR ligands fsl-1, flagellin, LPS, and poly(I:C) also increased IRG1 mRN..

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Awarded by NHMRC

Funding Acknowledgements

Associate Professor Martha Lappas is supported by a Research Fellowship from the Department of Obstetrics and Gynaecology (University of Melbourne) and a Faculty Fellowship from the University of Melbourne. Funding for this study is provided by the NHMRC (grant no. 1058786), Norman Beischer Medical Research Foundation, the University of Melbourne, and the Mercy Research Foundation.