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dc.contributor.authorLuborsky, Judith  Concept link
dc.contributor.authorBarua, Animesh  Concept link
dc.contributor.authorEdassery, Seara  Concept link
dc.contributor.authorBahr, Janice M.  Concept link
dc.contributor.authorEdassery, Seby L.  Concept link
dc.identifier.citationLuborsky, J., Barua, A., Edassery, S., Bahr, J. M., & Edassery, S. L. (2020). Inflammasome expression is higher in ovarian tumors than in normal ovary. Plos One, 15(1), e0227081.en_US
dc.description© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Luborsky, J., Barua, A., Edassery, S., Bahr, J. M., & Edassery, S. L. Inflammasome expression is higher in ovarian tumors than in normal ovary. Plos One, 15(1), (2020): e0227081, doi:10.1371/journal.pone.0227081.en_US
dc.description.abstractChronic inflammation fundamentally influences cancer risk and development. A mechanism of chronic inflammation is the formation of inflammasome complexes which results in the sustained secretion of the pro-inflammatory cytokines IL1β and IL18. Inflammasome expression and actions vary among cancers. There is no information on inflammasome expression in ovarian cancer (OvCa). To determine if ovarian tumors express inflammasome components, mRNA and protein expression of NLRP3 (nucleotide-binding domain, leucine-rich repeat family, pyrin domain containing 3), caspase-1, IL1β, and IL18 expression in hen and human OvCa was assessed. Chicken (hen) OvCa a valid model of spontaneous human OvCa. Hens were selected into study groups with or without tumors using ultrasonography; tumors were confirmed by histology, increased cellular proliferation, and expression of immune cell marker mRNA. mRNA expression was higher for hallmarks of inflammasome activity (caspase-1, 5.9x increase, p = 0.04; IL1β, 4x increase, p = 0.04; and IL18, 7.8x increase, p = 0.0003) in hen OvCa compared to normal ovary. NLRP3, caspase-8 and caspase-11 mRNA did not differ significantly between tumor and non-tumor containing ovaries. Similar results occurred for human OvCa. Protein expression by immunohistochemistry paralleled mRNA expression and was qualitatively higher in tumors. Increased protein expression of caspase-1, IL1β, and IL18 occurred in surface epithelium, tumor cells, and immune cells. The aryl hydrocarbon receptor (AHR), a potential tumor suppressor and NLRP3 regulator, was higher in hen (2.4x increase, p = 0.002) and human tumors (1.8x increase, p = 0.038), suggesting a role in OvCa. Collectively, the results indicate that inflammasome expression is associated with hen and human OvCa, although the NLR sensor type remains to be determined.en_US
dc.description.sponsorshipThis research was made possible by NIH grant NCI R03CA182120 (JL), DOD grant W81XWH-08-1-0203 (JL) and Swim Across America (AB). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.en_US
dc.publisherPublic Library of Scienceen_US
dc.rightsAttribution 4.0 International*
dc.titleInflammasome expression is higher in ovarian tumors than in normal ovaryen_US

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