Immune function decline could cause endometriosis, modelling suggests

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Australia; New Zealand; International; NSW; VIC
Nephron, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons
Nephron, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons

New research supports theories that the immune system contributes to the onset of endometriosis, a condition where tissues like those lining the uterus begin growing outside it. NZ and Australian researchers ran mathematical models of the immune response to “retrograde menstruation”, where period blood containing endometrial cells flows backwards into internal tissues instead of out through the cervix. A normal immune response cleared these cells from the internal tissues, even when there were a lot of them. However, a drop in immune function could cause retrograde menstruation to lead to endometriosis—and the model results show it takes a bigger immune system improvement to recover from the disease.

Media release

From: The Royal Society

Understanding the immune system’s role in endometriosis onset is critical for disease prevention. Our mathematical model explores how innate immune cells interact with endometrial cells during early stages of disease onset. Our findings indicate endometrial cell presence in the pelvic cavity alone is insufficient to cause endometriosis. Rather, a reduction in immune cell cytotoxicity is a more likely cause of disease. We predict that a decline in immune function (cytotoxicity or endometrial cell detection) can result in endometriosis onset, and a significant improvement in function is then required for disease recovery. This work provides valuable insight into understanding endometriosis onset.

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Research The Royal Society, Web page URL will go live after the embargo lifts
Journal/
conference:
Journal of the Royal Society Interface
Research:Paper
Organisation/s: University of Auckland, The University of Sydney, The University of Melbourne, Monash University, King's College London, Julia Argyrou Endometriosis Centre
Funder: Claire M. Miller’s research is supported by the Aotearoa Foundation (Aotearoa Fellowship 2022).
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