To evaluate the effects of IL-1β on Ninj1 gene expression in endometriosis, ESCs isolated from ovarian endometrioma (n = 5) were treated with IL-1β (5 ng/mL) for 3 or 6 hours.
These results reveal that IL-1/IL-1R1, IL-33/IL-33R and associated downstream signaling molecules are involved in the pathogenesis of endometriosis, and may provide novel therapeutic targets for endometriosis.
Women with interleukin-1 beta levels in quintiles 2-4 had a higher risk of endometriosis (for the second quintile, relative risk (RR) = 3.30, 95% confidence interval (CI): 1.06, 10.3; for the third quintile, RR = 3.36, 95% CI: 1.09, 10.4; and for the fourth quintile, RR = 4.64, 95% CI: 1.58, 13.6; P for trend = 0.62), which suggested an association beginning at 0.47 pg/mL or greater.
In endometriosis, TGF-β could affect differentiation of T helper (Th) cells, hence produce more IL-17 and IL-10 to PF and might have an indirect influence on inflammation, which is associated with higher IL-1β and IL-6 levels.
The imbalance between IL-1α, pro-IL-1β, mature IL-1β and sIL-1R2 and sIL-1RAcP in the peritoneal fluid and serum of women with endometriosis may be linked to the ability of transforming an acute inflammation into a chronic one.
Enzyme-linked immunosorbent assay for tumor necrosis factor-α (TNF-α), interleukin (IL)-6, IL-8, and IL-1β levels and quantitative real-time polymerase chain reaction for expression of miRNAs 125b-5p and Let-7b-5p in sera of patients with and without endometriosis.
By quantifying the IL-6 and IL-1β cytokines in the peritoneal fluid by ELISA, this study identified a higher IL-6 concentration in endometriosis group, but no significative difference in IL-1ß levels.
LXA<sub>4</sub> may inhibit the progression of endometriosis partly by lowering or raising the effect of IL-1β, mediated via some inflammation-related proteins (e.g. vinculin) and immune response-related protein (e.g.IL-4) in vitro.
In the follicular fluid, IL-1β and IL-6 showed significantly (P < 0.001 and 0.01, respectively) higher median concentrations in the endometriosis group than in the control group and a tendency towards endometriosis severity (rAFS stage) dependence.
The PR-B/A ratio was measured via real-time polymerase chain reaction after in vitro culture, in which endometrial cells were treated with either tumor necrosis factor-alpha (TNF-α), interleukin-1 beta, or peritoneal fluid obtained from women with advanced-stage endometriosis.
In a murine endometriosis model, one week after inoculation of endometrium to the peritoneal cavity, α-7 nAChR agonist significantly suppressed the expression of IL-1β mRNA (P<.01), which was negated when α-7 nAChR antagonist was administered simultaneously.
Using primary endometrial stromal cells isolated from women with endometriosis we examined the mRNA and protein expression of the progesterone receptors A and B, membrane progesterone receptors 1 and 2, androgen receptors, mineralocorticoid receptors and glucocorticoid receptors after exposure to the inflammatory cytokines tumor necrosis factor α (TNFα) and interleukin 1β (IL-1β).
Correlation analysis showed that the gene expression levels of hBD-2 in the ectopic and eutopic endometrium of EMS patients were positively correlated with the gene expression levels of IL-1β and TNF-α (P < 0.01).
Our research aimed to evaluate the effect of endometriosis on folliculogenesis and pregnancy, and to assess the involvement of inflammatory factors (IL1b, PGE2, PGF2α, and TGFβ2) in follicular fluid.
This points to a deficiency in the local control of IL-1 that, in view of the cytokine's elevated levels and potent proinflammatory, angiogenic, and growth-promoting effects, may contribute to endometriosis development.
In this case-control study, the IL-1α -889C>T, IL-1 receptor antagonist (IL-1RA) 86-bp microsatellite, IL-1 receptor 1 (IL-1R1) 52C>A, 294C>T, 1498T>C, 1632A>G, IL-1R2 rs2072472 C>T and rs7561460 C>T polymorphisms were analyzed in women with (n = 138) and without (n = 214) endometriosis using restriction fragment length polymorphism (RFLP) analysis, TaqMan assay, or DNA sequencing.