Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P14784 (IL-2 receptor)
 3,849 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The levels of soluble form of E-Selectin (sEs), or endothelial-leukocyte adhesion molecule-1, were measured in 96 sera derived from 72 HIV-infected patients at different stages of the disease, 60 healthy blood donors, and 50 HIV-negative patients with infections, using a quantitative ELISA. Levels of sEs in HIV-infected individuals without AIDS, according to the 1993 classification system of the Centers for Disease Control, were higher than normal (mean +/- SEM 48 +/- 4 versus 35 +/- 3 ng/ml, p = 0.003). Patients with established AIDS, who were afebrile and had no evidence of acute concurrent infection, had even higher sEs serum levels (70 +/- 9 ng/ml, p = 0.009, compared to those without AIDS). A significant increase in clinical category disease progression was present. Individual concentrations of sEs correlated directly with levels of soluble intercellular adhesion molecule-1 (p < 0.00001) and IL-2 receptor (p = 0.001), but not with CD4+ T-cell counts. Zidovudine treatment was not associated with changes in sEs serum levels. Elevated sEs levels were also found in HIV-seronegative patients with other bacterial and protozoal infections. Since sEs is a biologically active molecule, further studies should investigate the pathogenetic significance of circulating sEs in HIV-related disease progression, and assess the prognostic value of sEs determination for these patients.
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PMID:Levels of the circulating cell adhesion molecule E-selectin and disease progression in HIV infection. 852 77

The outcome of immune responses can be predicted by the lymphokine production pattern of the participating cells. Cytokines of the T helper type 1 (Th1) cells mediate inflammatory responses and delayed-type hypersensitivity (DTH), whereas Th2-like T cells predominantly produce cytokines, which stimulate antibody production by B cells. Immunoregulatory therapy of autoimmune diseases with unknown antigens may be achieved by inhibiting the production of inflammatory cytokines and induction of protective cytokines of Th2-like T cells. To determine the immunoregulatory capacity of the phosphodiesterase inhibitor pentoxifylline (PTX), which is known to suppress the production of tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma), this drug was used in mitogen and antigen-stimulated lymphocyte cultures as well as in patients with multiple sclerosis. PTX significantly decreased TNF-alpha and interleukin-12 (IL-12), whereas it increased IL-4 and IL-10 production. In addition, PTX inhibited cell proliferation, which was associated with a marked reduction in CD25 (IL-2 receptor alpha-chain) and CD54 (intercellular adhesion molecule-1; ICAM-1) expression. Increasing doses of PTX significantly reduced TNF-alpha and IL-12 mRNA expression of blood mononuclear cells, but increased IL-4 and IL-10 expression in eight patients with relapsing-remitting multiple sclerosis. These results indicate that PTX modulates immune reactions favouring a Th2-like response and may therefore be useful for the treatment of autoimmune diseases with a dominant Th1-like T cell response.
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PMID:Pentoxifylline, a phosphodiesterase inhibitor, induces immune deviation in patients with multiple sclerosis. 863 62

Plasma levels of antiinflammatory compounds (which counteract inflammation, cortisol, IL-1 receptor antagonist, IL-1ra; soluble IL-2 receptor, sIL-2r, soluble intercellular adhesion molecule-1, sICAM-1; interleukin-10, IL-10) were synchronously determined in a consecutive series of 25 patients with severe bacterial infections. Serum levels of cortisol, IL-1ra, sIL-2r, sICAM-1 and IL-10 were significantly higher in patients with infection compared with healthy volunteers. Bacterial infection results in the production of inflammatory and proinflammatory cytokines from macrophage/monocyte, which are thought to be involved in the pathogenesis of systemic inflammatory response syndrome (SIRS). We found that counter-inflammatory compounds can also be released during infectious insults. These results suggested that the biological activity of inflammatory mediators is inhibited by natural antiinflammatory compounds, and the body itself might down-regulate excessive inflammatory cascades through counteracting the inflammatory responses and restore homeostasis.
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PMID:Clinical value of cytokine antagonists in infectious complications. 917 65

Receptors in the plasma membrane of blood cells in general and in that of lymphocytes in particular are supposed to move around in a random walk fashion relatively freely driven by thermal diffusion, as described by the Singer-Nicolson fluid mosaic membrane model. In this article we summarized data and techniques that indicated nonrandom codistribution patterns of receptor superstructures under conditions, where the generation of such molecular colocalizations by the methods themselves were excluded. Application of fluorescence energy transfer in a flow cytometer helped to analyze such codistribution patterns in cell populations. After normalizing energy transfer values for possible differences between labeling ratios of the targeting monoclonal antibodies and using the mean values of energy transfer distribution curves, two-dimensional receptor maps were generated from data obtained in a pair-wise fashion between receptors. Major histocompatibility complex (MHC) class I and II, intercellular adhesion molecule-1 (ICAM-1), TcR-CD3-CD4, tetraspan molecules (CD81, CD82, CD53), and the subunits of the multisubunit IL-2 receptor displayed nonrandom codistribution patterns sometimes with, but very frequently without induction by their ligand. Immunogold-bead "sandwich" labeling analyzed by atomic force microscopy has shown that such receptor "islands" existed also in "receptor-island-groups". This indicated the existence of nonrandom receptor distribution of MHC class I and II molecules also at an elevated hierarchical level. An analysis is given herein concerning a standardized approach. The apparent incompatibility of these supramolecular patterns with the Singer-Nicolson type "free-protein and lipid-mobility paradigm" was resolved by recommending an additional emphasis on the mosaicism of the membrane besides receptor mobility.
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PMID:Supramolecular receptor structures in the plasma membrane of lymphocytes revealed by flow cytometric energy transfer, scanning force- and transmission electron-microscopic analyses. 977 84

In local or metastatic cancer, a prognostic tumour marker could be a valuable tool in the selection of different treatments. In renal cell cancer (RCC) no such markers have been available. We therefore evaluated the association between several pretreatment serum markers, tumour classification and short term survival in RCC patients. Serum samples were collected before surgery and three months thereafter from 24 RCC patients. Interleukin-6 (IL-6), IL- 12, soluble IL-2 receptor (sIL-2R) and intercellular adhesion molecule-1 (sICAM-1) were measured in serum samples using specific commercial enzyme immunoassay kits. Serum IL-6, sIL-2R and sICAM-1 levels before nephrectomy were significantly higher in non-local tumours than in local ones (mean IL-6 53 pg/ml versus 6.3 pg/ml, and sICAM-1 443 ng/ml versus 290 ng/ml, sIL-2R 3779 pg/ml versus 1796 pg/ml). In contrast, IL-12 levels were higher in local tumours (148 versus 102 pg/ml) and the levels increased significantly (P < 0.005) after removal of the primary tumour in patients with local disease. All patients with local tumours had normal IL-6 values, while only one with a non-local tumour had IL-6 levels below 10 pg/ml. In addition, IL-6 and sICAM-1 levels before operation were significantly higher in patients with short (less than one year) survival (p=0.007 to IL-6 and p=0.006 to sICAM-1). In contrast, patients with shorter survival had significantly lower IL-12 (p=0.03) levels. Our findings suggest that RCC induces changes in several immunological parameters. These soluble immunological factors, IL-6, IL-12, sIL-2R and sICAM-1, might have a role as prognostic factors in RCC.
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PMID:Soluble immunological parameters and early prognosis of renal cell cancer patients. 1187 46


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