High level of plasma TILRR protein is associated with faster HIV seroconversion

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dc.contributor.authorKashem, Mohammad Abul
dc.contributor.authorLischynski, Jennifer
dc.contributor.authorStojak, Brittany
dc.contributor.authorLi, Lin
dc.contributor.authorYuan, Xin-Yong
dc.contributor.authorLiang, Binhua
dc.contributor.authorKimani, Joshua
dc.contributor.authorPlummer, Francis
dc.contributor.authorLuo, Ma
dc.date.accessioned2022-04-01T14:54:06Z
dc.date.available2022-04-01T14:54:06Z
dc.date.issued2022-03-24
dc.date.submitted2022-04-01T05:32:31Zen_US
dc.description.abstractBackground: TILRR (Toll-like Interleukin-1 Receptor Regulator) is a modulator of many genes in NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) signaling. It promotes the production of inflammatory mediators and the migration of immune cells. Recently, we showed that TILRR protein circulates in human blood. Thus, it could influence systemic inflammation. Systemic and mucosal inflammations increase the susceptibility to HIV infection. In this study, we analyzed the TILRR protein levels of the archived plasma samples of women enrolled in the Pumwani cohort to determine whether the plasma TILRR protein levels before seroconversion are correlated with differential risk of HIV seroconversion. Methods: TILRR protein of 941 archived HIV negative plasma samples from 390 women who were HIV negative at the cohort enrollment was quantified with an in-house developed multiplex bead array method. Proinflammatory cytokines/chemokines were measured using a 14-plex bead array method. Spearman rank correlation analysis was used to determine the correlation between plasma TILRR protein and proinflammatory cytokines/chemokines. Kaplan-Meier survival analysis was conducted to evaluate whether the median plasma TILRR protein levels correlate with increased risk of HIV seroconversion. Findings: The level of plasma TILRR protein was positively correlated with plasma IL-1β (rho: 0.2593, p<0.0001), MCP-1 (rho: 0.2377, p<0.0001), and IL-17A (rho: 0.1225, p=0.0216). Women with median plasma TILRR protein levels ≥100 ng/ml seroconverted significantly faster than women with plasma TILRR protein levels <100 ng/ml (log-rank= 100.124, p<0.0001; relative risk= 3.72 and odds ratio= 15.29). Furthermore, the factors causing genital inflammation, such as STIs (sexually transmitted infections), vaginal discharge, and genital ulcers were not statistically significantly different among women with different median plasma TILRR protein levels. Interpretation: The high plasma TILRR protein levels are highly correlated with several plasma proinflammatory cytokines/chemokines. High median plasma TILRR protein (≥100 ng/ml) strongly predicted an increased risk of HIV seroconversion. Reducing plasma TILRR protein levels may reduce the risk of HIV acquisition.en_US
dc.description.sponsorshipFunded by an operating grant from the Canadian Institutes of Health Research (CIHR), operating grant-PA: CHVI Vaccine Discovery and Social Research; and National Microbiology Laboratory of Canadaen_US
dc.identifier.doi10.1016/j.ebiom.2022.103955
dc.identifier.urihttp://hdl.handle.net/1993/36393
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsopen accessen_US
dc.subjectToll-like Interleukin-1 Receptor Regulatoren_US
dc.subjectblood plasmaen_US
dc.subjectHIV seroconversionen_US
dc.subjectPumwani sex worker cohorten_US
dc.subjectProinflammatory mediatorsen_US
dc.titleHigh level of plasma TILRR protein is associated with faster HIV seroconversionen_US
dc.typeresearch articleen_US
local.author.affiliationRady Faculty of Health Sciences::Max Rady College of Medicine::Department of Medical Microbiology and Infectious Diseasesen_US
oaire.citation.titleeBioMedicineen_US
project.funder.identifierhttps://doi.org/10.13039/501100000024en_US
project.funder.nameCanadian Institutes of Health Researchen_US
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