Cytokine Levels In Peritoneal Fluid Research Articles

Surgical removal of endometriotic lesions alters local and systemic proinflammatory cytokines in endometriosis patients

To determine the impact of endometriotic lesion removal on local and systemic inflammation. Multiplex cytokine analysis on samples from endometriosis patients before surgery, 2 weeks after surgery, and 3 months after surgery. Academic teaching hospital and university. A total of 43 endometriosis patients before and after excision of lesions by means of laparoscopic surgery, and 25 normal women. None. Plasma, eutopic and ectopic tissue, and peritoneal fluid cytokine levels. Compared with presurgery plasma samples, levels of granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin (IL) 2, IL-8, and IL-10 decreased significantly by 2weeks after surgery in endometriosis patients. Interestingly, levels began to rise at 3months after surgery in most cases. In tissue, levels of GM-CSF and IL-15 were lower in eutopic tissue, while levels of basic fibroblast growth factor, interferon-inducible protein 10, IL-1 receptor antagonist, granulocyte colony-stimulating factor, macrophage inflammatory protein 1β, IL-7, and IL-5 were higher in eutopic than in ectopic tissue. In peritoneal fluid, levels of IL-5 and IL-12 were higher in early versus advanced stages of endometriosis. Compared with normal women, plasma from endometriosis patients had higher levels of inflammatory cytokines. Endometriotic lesion removal significantly alters the inflammatory profile both locally and systemically in women with endometriosis. Our findings indicate that ectopic lesions are the major drivers of systemic inflammation in endometriosis. The transitory nature of the change may reflect the recurrence of the condition and the influence of systemic factors in its onset.

Ascites Regression and Survival Increase in Mice Bearing Advanced-stage Human Ovarian Carcinomas and Repeatedly Treated Intraperitoneally With CpG-ODN

Tumor cell growth, even in advanced stages of ovarian cancer, is nearly always restricted to the peritoneal cavity; therefore, repeated intraperitoneal injections of oligodeoxynucleotides containing dinucleotides with unmethylated CpG motifs (CpG-ODN) recruiting and activating innate effector cells throughout the abdominal cavity to the tumor site might control tumor cell growth and ascites formation. After a single CpG-ODN treatment, in IGROV-1 ovarian tumor ascites-bearing athymic mice, the number of tumor cells declined rapidly and markedly, and ascites volumes declined shortly after treatment (5 h), increasing thereafter at a slower rate than in controls. When administered every 7 days for 4 weeks, CpG-ODN had only a marginal effect on survival time, whereas administration 5 days/wk for 3 or 4 weeks led to a significantly increased survival time as compared with controls (P<0.005) and completely controlled ascites growth without apparent toxicity, although a disorganization of lymphoid organs was observed. Bio-plex assay of cytokine levels in peritoneal fluid of ascites-bearing mice after CpG-ODN treatment revealed an increase in interleukin (IL)-6, IL-10, IL-12, and interferon-gamma at 24 hours, which returned to control mice levels at 48 to 96 hours, whereas the high levels of angiogenic factors remained unchanged. Depletion of natural killer or monocytes/macrophages only slightly influenced the CpG-ODN-induced reduction of ascites tumor cells, indicating that the antitumor activity might not be related to a specific cell/cytokine but rather to the repertoire of cells and cytokines accumulated in the peritoneal cavity. Thus, our data suggest a relevant role for repeated activation of cells and cytokines of innate immunity in the therapy of ovarian cancer patients with malignant ascites.

Peritoneal Vascular Density Assessment Using Narrow-Band Imaging and Vascular Analysis Software, and Cytokine Analysis in Women With and Without Endometriosis

The development and onset of endometriosis is associated with angiogenesis and angiogenic factors including cytokines. We analyzed intrapelvic conditions in women with endometriosis via vascular density assessment of grossly normal peritoneum and determination of cytokine levels in peritoneal fluid. Seventy-three patients underwent laparoscopic surgery because of gynecologic disease including endometriosis in our department using a narrow-band imaging system. Each patient was analyzed for peritoneal vascular density using commercially available vascular analysis software (SolemioENDO ProStudy; Olympus Corp, Tokyo, Japan). Each patient was also subjected to analysis of interleukin 6 (IL-6), IL-8, tumor necrosis factor-α, and vascular endothelial growth factor concentrations in peritoneal fluid. We defined 4 groups as follows: group 1, endometriosis: gonadotropin-releasing hormone (GnRH) agonist administration group (n = 27); group 2, endometriosis: GnRH agonist nonadministration group (n = 15); group 3, no endometriosis: GnRH agonist administration group (n = 18); and group 4, no endometriosis: GnRH agonist nonadministration group (n = 13). No significant differences in peritoneal vascular density between the 4 groups were found under conventional light; however, under narrow-band light, vascular density in the endometriosis groups (groups 1 and 2) was significantly higher. Cytokine analysis of the 4 groups determined that IL-6 and IL-8 concentrations were significantly higher compared with the no endometriosis groups (groups 3 and 4). Tumor necrosis factor-α and vascular endothelial growth factor concentrations were not significantly different between groups. In endometriosis, peritoneal vascular density was significantly higher as assessed using the narrow-band imaging system and SolemioENDO ProStudy, whereas GnRH agonist did not obviously decrease vascular density but IL-6 concentration was lower in the GnRH agonist administration group.

Cyclooxygenase-2 overexpression in ovarian endometriomas is associated with higher risk of recurrence

Cyclooxegenase-2 expression was evaluated by immunohistochemistry in endometrioma tissue samples taken from 109 patients, of whom 53 had recurrence by 30 months after surgery and 56 did not. Cyclooxegenase-2 overexpression, along with previous medical treatment of endometriosis and the presence of adhesion, is predictive of recurrence of ovarian endometrioma within 30 months after surgery, with a resultant sensitivity of 72.5% and a specificity of 72.4%, suggesting that there are intrinsic and identifiable biomarkers that confer recurrence risk.

Elevated cytokine levels in peritoneal fluid from burned patients with intra-abdominal hypertension and abdominal compartment syndrome

Elevated cytokine levels in peritoneal fluid from burned patients with intra-abdominal hypertension and abdominal compartment syndrome

Elevated cytokine levels in peritoneal fluid from burned patients with intra-abdominal hypertension and abdominal compartment syndrome

Background Burn patients with intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) undergo vigorous resuscitation and accumulate peritoneal fluid (PF) that is a plasma ultra-filtrate. This study compared antithrombin (AT) and cytokine levels in burn patient plasma and peritoneal fluid (PF). Methods Twenty-nine patients were studied; 22 developed IAH and 9 progressed to ACS. Burn + inhalation injury was present in 22 patients; 5 had burn only and 2 had inhalation only. Sixteen patients died; of these, 9 survived less than 48 h due to the severity of their injuries. Flow cytometry utilized the Cytometric Bead Array kit for Human Th1/Th2 cytokines. AT levels were determined by the Accucolor method spectrophotometrically. Results All cytokine levels were significantly elevated in burn plasma and PF compared to normal plasma, p < 0.001. AT plasma levels were decreased compared to normal. AT and cytokines were present in peritoneal fluid of burn patients with IAH and ACS. Patients who died had decreased plasma levels of AT and increased IFN-γ, IL-10, IL-6, IL-4, IL-2 peritoneal fluid levels compared to survivors. Conclusions Peritoneal fluid may be a reservoir for cytokines during initial resuscitation and contributes to homeostatic perturbations in burn patients.

Effect of ovarian involvement on peritoneal fluid cytokine levels in endometriosis patients

Objective: There is a growing body of evidence supporting the role of peritoneal fluid (PF) cytokines in the initiation and progression of endometriosis. Moreover, PF cytokines have been implicated in the pathogenesis of endometriosis associated infertility especially low oocyte quality. The ovary—under physiological conditions—is a site for inflammatory reactions mediated by numerous cytokines particularly around the time of ovulation. The objectives of this study were: 1) to evaluate a group of cytokines in the PF of endometriosis patients with and without ovarian affection and, 2) to compare cytokine alterations to a control group consisting of patients undergoing tubal ligation/reanastomosis.

Cytokine profiles in autologous peritoneal fluid and peripheral blood of women with deep and superficial endometriosis.

In a preliminary study the hypothesis was tested that cytokine profiles in peripheral blood were higher in women with deep infiltrating endometriosis and cytokine profiles in peritoneal fluid were higher in women with superficial endometriosis. Thirteen women of reproductive age having laparoscopy for infertility (n=9), pain (n=3) or combined pain and infertility (n=1). Peripheral blood and peritoneal fluid were obtained and analyzed for Interleukin-6 (IL-6), Tumor Necrosis Factor-alpha (TNF-alpha), Interleukin-10 (IL-10), Transforming Growth Factor-betal (TGFbeta1), and Interferon-gamma (IFN-gamma). No significant cytokine differences were observed in either peritoneal fluid or peripheral blood between IL-6, TGFbeta1, IFNgamma, TNF-alpha and IL-10 of women with superficial endometriosis (n=7) and women with deeply infiltrating endometriosis (n=6). The results of this preliminary study do not show significant differences in peripheral blood and peritoneal fluid cytokine levels between women with deep infiltrating endometriosis compared to women with superficial disease. Future studies with increased sample size are required to either confirm or refute these preliminary findings.

Increased levels of interleukin-6 and interleukin-10 in the peritoneal fluid of patients with endometriosis

OBJECTIVE: The levels of interleukin-2, interleukin-4, interleukin-5, interleukin-6, interleukin-10, and granulocyte-macrophage colony-stimulating factor were measured in the peritoneal fluid of 15 patients with endometriosis to characterize the type of immune response that occurs at the site of endometriosis. STUDY DESIGN: Cytokine levels in peritoneal fluid obtained during laparoscopy from 15 patients and 12 controls undergoing tubal ligation were determined by enzyme-linked immunosorbent assay. RESULTS: The mean levels of interleukin-6 in patients with endometriosis and controls were 797 ± 407 pg/ml and 133 ± 38 pg/ml, respectively ( p < 0.02). Similarly, the mean concentration of interleukin-10 in peritoneal fluids of patients with endometriosis was significantly higher than that of controls (241 ± 38 vs 128 ± 21, p < 0.05). The levels of interleukin-2, interleukin-4, interleukin-5, and granulocyte-macrophage colony-stimulating factor were not significantly different between the two study groups. CONCLUSIONS: The levels of interleukin-6 and interleukin-10 are increased in the peritoneal fluids of patients with endometriosis, suggesting enhanced macrophage activity in these patients. Increased interleukin-6 and interleukin-10 production may partially contribute to the disturbed immune regulation observed in patients with endometriosis. (AM J OBSTET GYNECOL 1996;174:1522-6.)

IL-1 beta, TNF-alpha, and IL-2 in peritoneal fluid and macrophage-conditioned media of women with endometriosis.

The presence of various cytokines in human peritoneal fluid has been incompletely evaluated. Changes in cytokine levels may be related to the development of endometriosis, infertility, and activation of peritoneal macrophages. This study assesses levels of IL-1 beta, IL-2 and TNF- alpha in peritoneal fluid and macrophage conditioned media of women with endometriosis. Peritoneal fluid was collected from 51 women at the time of diagnostic or operative laparoscopy for benign gynecologic disease. Peritoneal macrophages were isolated, cultured for 24 h, and the culture media collected. IL-1 beta, IL-2, and TNF- alpha levels were determined by commercial ELISA kits. The mean concentration of IL-1 beta and TNF- alpha was significantly higher in macrophage conditioned media of patients with endometriosis (P < 0.02). However, there were no significant changes in peritoneal fluid cytokine levels. Peritoneal macrophage concentrations were also higher in patients with endometriosis. This study supports the concept that endometriosis is associated with activation of peritoneal macrophages, and a higher concentration of these cells. This activation is reflected by the increased levels of cytokines found in macrophage conditioned media. The absence of significant changes in peritoneal fluid cytokine levels would seen to indicate that the above derangements are not responsible for the development or progression of endometriosis.