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)

Cocultivation of spleen cells, lymph node cells, and thymocytes of female Wistar-King-Aptekman rats with short-term cultured male adult T cell leukemia (ATL) cells in the presence of 5-bromo-2'-deoxyuridine (BudR) resulted in the establishment of rat lymphoid cell lines, TARS-1, TARL-2, and TART-1. Cytogenic analysis of the three cell lines showed a female rat karyotype with 42 chromosomes. The surface phenotypes of TARS-1 and TART-1 were those of rat T cells. TARL-2 was only positive for rat Ia and leukocyte common antigens and brain associated T antigen. The cell lines continuously produced a type C retrovirus, human T cell leukemia virus-I (HTLV-I) and expressed ATL-associated antigens. By using monoclonal antibodies for rat IL-2 receptors, FACS analysis demonstrated that three rat T cell lines unequivocally expressed rat IL-2 receptor. TARS-1 and TART-1 but not TARL-2 were transplantable into newborn syngeneic rats and nude mice. By injecting MMC-treated TARS-1 into newborn syngeneic rats, HTLV-I carrier rats were obtained which showed gradual increase of anti-ATLA antibody titer by aging. No evidence of leukemia nor malignant lymphoma were observed in those carrier rats. Adult rats immunized with these rat cell lines produced antibodies specific for HTLV-I. The biochemical analysis of the antigen that reacted with rat sera revealed that they are the HTLV-I specific polypeptides, p28, p24, p19 and p15.
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PMID:[Rat lymphoid cell lines producing human T cell leukemia virus-I]. 288 Jul 89

Sera and cerebrospinal fluid (CSF) from patients with human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy (HAM) were analyzed by Western blotting, and normal human leukocytes were transformed by co-cultivation with HAM patients' leukocytes. The sera and CSF from all HAM patients formed specific bands with HTLV-1 viral proteins, including p19, p24, p28, p32, p40 and p53. After 2-3 weeks of co-cultivation, scattered foci of cell aggregates were noted on macrophage sheets. Surface markers of the transformed cells were OKT3(+), OKT4(+), OKT8(-), IL-2 receptor(+) and EBNA(-). Chromosome analysis showed a normal karyotype. HTLV-1 viral genome was integrated into DNA isolated from transformed cell lines. Electron microscopy revealed type C virus particles in transformed T-cell lines. These results indicate that peripheral leukocytes from HAM patients can transform HTLV-1-negative leukocytes and HAM patients have the potential to acquire adult T-cell leukemia in the future.
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PMID:Transformation of human leukocytes by co-cultivation with HTLV-1-associated myelopathy patients' leukocytes. 288 13

We have previously shown that a multibranched peptide construct derived from the tip of the B clade V3 loop consensus sequence (MPBC1: [GPGRAF]8-[K]4-[K]2-K-beta A-OH), but not V3 monomer peptides, inhibit human immunodeficiency virus type 1 (HIV-1) infection and syncytium formation of CD4+ T cells from immortalized lines. Here, we show that MBPC1 attaches to normal peripheral blood lymphocytes (PBLS) and monocytes but not to erythrocytes. While treatment with 5 microM MBPC1 had no significant antiviral effect on HIV-1Ba-L infection of monocyte-derived macrophages as assessed by p24 production in culture supernatants, this dose inhibited both HIV-1Ba-L and HIV-1LAI infection of PBLs. Virus production was inhibited up to 90% when MBPC1 was added to PBLs immediately after the virus, and was inhibited about 50% when it was added after 3 days; no effect was noted when it was added 7 days postinfection. MBPC1 did not affect PBL growth or IL-2 receptor and CD4 surface expression level. These observations suggest a selective antiviral effect of MBPC1 on CD4+ T lymphocytes and they provide additional circumstantial evidence that HIV-1 enters lymphocytes and monocytes by different mechanisms.
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PMID:HIV type 1 V3 peptide constructs act differently on HIV type 1 infection of peripheral blood lymphocytes and macrophages. 911 8

To determine whether the gp41 of HIV-1 could adhere to the interleukin (IL)-2 receptor at the surface of target cells in vitro, we analysed in vitro the possible functional competition between various forms of the HIV-1 gp41 molecule (i.e. peptides, trimeric or primary structures) and IL-2. This competition has been analysed in a test involving the proliferation of an IL-2-dependent cell line (CTLL2). The putative interaction between the IL-2 molecule and HIV-1 has also been assayed on MT4 cells (CD4(+) T lymphocytes) in culture. The gp41 trimeric molecule and an HIV-1 gp41 peptide (578-590 aminoacid sequence) dramatically inhibited CTLL2 cell proliferation, despite the presence of IL-2. The addition of serum, containing anti-gp41 antibodies, from HIV-1 patients resulted in a significant abolition of this inhibition. The concomitant incubation of IL-2 and HIV-1 with MT4 cells resulted in a strong decrease (70%) in HIV-1 p24 release. These data suggest that the gp41 of HIV-1 can use the IL-2 receptor during the process of HIV-1 infection and that there is some functional mimesis between gp41 and IL-2.
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PMID:HIV-1 infection: functional competition between gp41 and interleukin-2. 2068 81