Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P05231 (interleukin-6)
 23,907 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effects of a 50 Hz extremely low frequency (ELF) sinusoidal magnetic field (MF) on the expression of genes relating to cytokine receptors were studied in HL60 cells. Transcription levels of tumor necrosis factor receptor (TNFR) p55 and p75, interleukin-6 receptor-alpha (IL-6Ralpha) and transforming growth factor-beta receptor 1 (TGFbetaR1) were quantified in cells exposed to an intensity of 0.1 or 0.8 mT for periods ranging from 30 min to 72 h. Cells treated with 10 nM of phorbol 12-myristate 13-acetate (PMA) for 8 h served as a positive control. Gene expression values were assessed by the ribonuclease protection assay (RPA) and normalized to those of the noninducible gene GAPDH. The results showed that MF exposure at 0.1 and 0.8 mT for 72 h increased TNFR p75 and IL-6Ralpha mRNA expression in HL60 cells. No significant change in gene expression levels of TNFR p55 and TGFbetaR1 was observed under any of the exposure conditions. In addition, we report here for the first time that IL-6Ralpha mRNA expression can be suppressed by PMA in HL60 cells.
 ...
PMID:Gene expression of cytokine receptors in HL60 cells exposed to a 50 Hz magnetic field. 1211 54

There is a lack of data on circulating levels of cell-adhesion molecules in relation to subclinical atherosclerosis measured in both the carotid and femoral arteries in humans. The aim of the present study was to investigate the relationship between clinically silent atherosclerosis and cell-adhesion molecules, and to explore the relationship between these molecules, C-reactive protein and the inflammatory cytokines interleukin-6, tumour necrosis factor-alpha (TNF-alpha), soluble TNF-alpha receptor p55 and soluble TNF-alpha receptor p75. The study group (n=391) consisted of clinically healthy 58-year-old men recruited from the general population. The results showed a positive trend between levels of soluble intercellular cell-adhesion molecule 1 (sICAM-1) and plaque occurrence in the carotid and femoral arteries (P=0.008), and also a univariate correlation between sICAM-1 levels and the composite variable of carotid and femoral intima-media thickness (P<0.001). When adjusted for other risk factors, the relationship between sICAM-1 and intima-media thickness no longer reached statistical significance. The level of sICAM-1 was associated with those of the pro-inflammatory cytokine TNF-alpha, its two soluble receptors, and also interleukin-6 and C-reactive protein. Levels of soluble E-selectin and vascular cell-adhesion molecule 1 (VCAM-1) showed weak or no association with subclinical atherosclerosis and inflammatory variables. Thus, in clinically healthy middle-aged men, levels of sICAM-1, but not of soluble VCAM-1 or E-selectin, were associated with both subclinical atherosclerosis and inflammatory variables.
 ...
PMID:Circulating ICAM-1 (intercellular cell-adhesion molecule 1) is associated with early stages of atherosclerosis development and with inflammatory cytokines in healthy 58-year-old men: the Atherosclerosis and Insulin Resistance (AIR) study. 1214 2

Little is known regarding the timing of immune ontogeny and effector function in fetal humans and nonhuman primates. We studied the organization of lymphocyte and antigen-presenting cell populations in developing lymphoid tissues of rhesus monkey fetuses during the second and third trimesters (65 to 145 days of gestation; term = 165 days). Immunoglobulin-secreting and cytokine-secreting cells were detected at day 80. The thymus, spleen, lymph nodes, and intestinal mucosa were examined for cells expressing CD3, CD5, CD20, CD68, p55, and HLA-DR. In the spleens of 65-day-old fetuses (early second trimester), the overwhelming majority of total lymphocytes were CD5(+) CD20(+) B-1 cells. The remaining lymphocytes were CD3(+) T cells. By day 80, splenic B and T cells were equal in number. Intraepithelial CD3(+) CD5(-) T cells and lamina propria CD20(+) CD5(+) B cells were present in the intestines of 65-day-old fetuses. By day 80, numerous CD20(+) CD5(+) B cells were present in the jejunums and colons and early lymphocyte aggregate formation was evident. The spleens of 80- to 145-day-old fetuses contained immunoglobulin M (IgM)-secreting cells, while IgA-, IgG-, interleukin-6-, and gamma interferon-secreting cells were numerous in the spleens and colons. Thus, by the second trimester, the lymphoid tissues of the rhesus monkey fetus have a complete repertoire of properly organized antigen-presenting cells, T cells, and B cells.
 ...
PMID:Functional and morphological development of lymphoid tissues and immune regulatory and effector function in rhesus monkeys: cytokine-secreting cells, immunoglobulin-secreting cells, and CD5(+) B-1 cells appear early in fetal development. 1252 52

Tumor necrosis factor alpha (TNFalpha) and TNFalpha receptor mRNA expression, the effects of TNFalpha on DNA synthesis and cell proliferation as well as its effects on interleukin-6 (IL-6) production and expression in renal cell carcinoma (RCC) were studied using RCC cell lines. The effects of TNFalpha on DNA synthesis and IL-6 production were also studied using short-term established RCC cell lines. A total of 8 cell lines, 4 RCC cell lines (RC-2, RGB, 14T, 4T) and 4 cell lines established at our laboratory (OCUU-1, 2, 4, 5), as well as 10 short-term established RCC cell lines were used. When TNFalpha and TNFalpha receptor mRNA expression was examined by RT-PCR, p55 TNF receptor mRNA expression was observed while TNFalpha and p75 TNF receptor mRNA expression was not observed in all cell lines. When the effects of TNFalpha on DNA synthesis were studied by [3H]-thymidine incorporation assay, DNA synthesis was induced in RGB, 14T, 4T, OCUU-2 and OCUU-4 by adding 10 and 100 pg/ml of TNFalpha while it was not induced in RC-2 and OCUU-5 at all concentrations. When its effects on cell proliferation were evaluated by MTT assay, cell proliferation was observed in RGB, 14T and 4T at TNFalpha concentration of 10 pg/ml and in RGB, 14T, 4T, OCUU-4 and OCUU-5 at TNFalpha concentration of 100 pg/ml. However, cell proliferation was not detected in RC-2 and OCCU-2 at any concentration. When the effects of TNFalpha on IL-6 production were studied by ELISA, IL-6 production was induced in RC-2, RGB, 14T, OCUU-1, OCUU-2 and OCUU-5 while not in 4T and OCUU-4. When its effects on IL-6 expression were examined by Northern blot analysis, the results were similar to those obtained by ELISA. As for the 10 short-term established RCC cell lines, DNA synthesis and IL-6 production were induced with the addition of TNFalpha. These results suggested that TNFalpha induced cell proliferation in RCC.
 ...
PMID:Effects of tumor necrosis factor alpha in renal cell carcinoma. 1453 24

Plasma concentrations of 8 proteins, including cytokines: interleukin-2 (IL-2), interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor-alpha (TNF-alpha), receptors: soluble IL-2 receptor (sIL-2R), p55 soluble TNF receptor (p55 sTNF-R) and acute phase proteins: alpha-2 macroglobulin (alpha-2 MG), C-reactive protein (CRP) were examined in 33 patients with drug-induced urticaria. The activity of selected proteins was measured using the immunoenzymatic ELISA method: a) in the acute stage of disease before treatment was administered, and b) after clearing of skin lesions, after treatment. In the acute stage of disease elevated concentrations of the examined proteins (p<0.001) in comparison to the control were found. After clearing of clinical symptoms the concentrations of IL-2, IL-6, p55TNF-R and alpha-2 MG were not significantly different from the control values. But despite deep decrease, slL-2R, IL-10, TNF-alpha and CRP levels were still significantly elevated (p<0.001) when compared to the control. Results of this study indicate complex character of pathogenic phenomena in drug-induced urticaria in which elevated activity of mediators acting as promotors and modulators of cellular immune response can be found.
 ...
PMID:Drug-induced urticaria--activity of selected cytokines and acute phase proteins in plasma. 1531 56

Plasma concentrations of 8 proteins, including cytokines: interleukin-2 (IL-2), interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor-alpha (TNF-alpha), receptors: soluble IL-2 receptor (slL-2R), p55 soluble TNF receptor (p55 sTNF-R) and acute phase proteins: alpha-2 macroglobulin (alpha-2 MG), C-reactive protein (CRP) were examined in 14 patients with drug-induced hyperergic vasculitis. The activity of selected proteins were measured using the immunoenzymatic ELISA method: a) in the acute stage of disease before treatment was administered, and b) after clearing of skin lesions, after treatment. In the acute stage of disease highly elevated concentrations of the examined proteins (p<0.001) in comparison to the control were found. After clearing of clinical symptoms the concentrations of IL-6 and alpha-2 MG were not significantly different from the control values. But despite deep decrease, plasma levels of remaining six proteins were still highly significant (p<0.001) or significant (p<0.01) when compared to the control. Results of this study indicate that in the course of drug-induced hyperergic vasculitis the systemic inflammatory and immune response is activated and elevated concentrations of the examined proteins are present in peripheral blood despite clearing of the clinical symptoms of the disease.
 ...
PMID:Drug-induced hyperergic vasculitis--activity of selected cytokines and acute phase proteins in plasma. 1531 57

We investigated the effects of a low n-6 fatty acid (FA) diet supplemented with fish oil on serum pro-inflammatory cytokine concentrations and clinical variables in patients with active rheumatoid arthritis (RA). Sixty patients were randomly assigned to receive a diet low in n-6 FAs and n-3 FAs supplement (fish oil group), a diet low in n-6 FAs and placebo (placebo group), or no special diet or intervention (control group). Serum cytokines and clinical and biochemical variables were evaluated at baseline and various timepoints. At week 18 the fish oil group had significant reductions in linoleic acid, C-reactive protein (CRP) and soluble tumour necrosis factor receptor p55 (sTNF-R p55), and significant elevations in eicosapentaenoic acid and docosahexaenoic acid compared with baseline. There were no significant differences in the clinical variables between the three groups. At week 24 there were significant reductions in interleukin-6 and TNF-alpha in the fish oil and placebo groups. Supplementation with n-3 FA and a low n-6 FA intake decreased serum sTNF-R p55 and CRP levels in patients with RA.
 ...
PMID:Effects of n-3 fatty acids on serum interleukin-6, tumour necrosis factor-alpha and soluble tumour necrosis factor receptor p55 in active rheumatoid arthritis. 1545 76

Organic anion transporting polypeptide 4 (Oatp4; Slc21a10) is expressed almost exclusively in liver, where it mediates uptake of a variety of compounds, including bile acids, as well as other endo- and xenobiotics, across hepatic sinusoidal membranes in a Na+-independent manner. Lipopolysaccharide (LPS) has been shown to decrease Oatp4 mRNA levels in a dose- and time-dependent manner in Toll-like receptor 4 (TLR4)-normal (C3H/OuJ) mice, but not in TLR4-mutant (C3H/HeJ) mice. Moreover, after LPS administration, serum concentrations of tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), and interleukin-6 (IL-6) are markedly lower in TLR4-mutant mice than in TLR4-normal mice. Thus, TLR4 is considered an upstream mediator of LPS-induced decrease in mouse Oatp4 mRNA. LPS is thought to alter liver gene expression through LPS-induced cytokines or nitric oxide (NO). TNF receptor p55 (TNFRp55) and type I IL-1 receptor (IL-1RI) mediate the biological functions of TNF-alpha and IL-1beta, respectively. Therefore, to determine whether endogenous cytokines or NO are mediators of LPS-induced down-regulation of Oatp4, Oatp4 mRNA levels were determined in mice deficient in the TNFRp55, IL-1RI, IL-6, or inducible nitric oxide synthase (iNOS) after LPS administration. Mice homozygous for a targeted deletion of genes for TNFRp55, IL-1RI, IL-6, or iNOS exhibited similar decreases in Oatp4 mRNA levels as wild-type mice after LPS administration. Moreover, in mouse hepatoma cells, treatment with TNF-alpha, IL-1beta, or IL-6 individually or in combination did not suppress activity of mouse Oatp4 promoter (-4.8 kb to +30). Therefore, LPS-induced down-regulation of Oatp4 appears to be independent of TNF-alpha, IL-1beta, IL-6, or iNOS.
 ...
PMID:Lipopolysaccharide-induced down-regulation of organic anion transporting polypeptide 4 (Oatp4; Slc21a10) is independent of tumor necrosis factor-alpha, Interleukin-1beta, interleukin-6, or inducible nitric oxide synthase. 1548 91


<< Previous 1 2 3