نتایج جستجو برای: cell leukemia virus type i htlv
تعداد نتایج: 3869598 فیلتر نتایج به سال:
Human T-cell lymphotropic virus type I (HTLV-I), an etiologic agent for adult T-cell leukemia, is strongly associated with certain neurological diseases. The HTLV-I genome encodes a protein, Tax1, that transactivates viral gene transcription. CD4-positive T helper lymphocytes express the proenkephalin gene, and enkephalins have been implicated as neuroimmunomodulators. We have investigated the ...
We screened serum samples from patients with various hematological disorders and healthy individuals for the presence of adult T-cell leukemia/lymphoma associated antigen (anti-ATLA) antibodies. These antibodies were detected not only in all patients with ATL but frequently in those diagnosed as T-cell malignant lymphoma or T-cell chronic lymphocytic leukemia; the positivity rate of anti-ATLA a...
Human T cell leukemia virus type-I (HTLV-I) infection is associated with spontaneous T cell activation and uncontrolled lymphocyte proliferation. An exacerbated type-1 immune response with production of pro-inflammatory cytokines (interferon-gamma and tumor necrosis factor-alpha) is significantly higher in patients with myelopathy associated to HTLV-I than in HTLV-I asymptomatic carriers. In co...
We studied a patient with large granular lymphocyte (LGL) leukemia for evidence of human T-cell leukemia/lymphoma virus (HTLV) infection. Serum from this patient was positive for HTLV-I/II antibodies by enzyme-linked immunosorbent assay (ELISA) and was confirmed positive in Western blot and radioimmunoprecipitation assays. Results of a synthetic peptide-based ELISA showed that the seropositivit...
Human T-cell leukemia virus types I (HTLV-I) and II (HTLV-II) are human retroviruses which normally infect T-lymphoid cells. HTLV-I infection is associated with adult T-cell leukemia-lymphoma, and HTLV-II is associated with an indolent form of hairy-cell leukemia. To identify potential transcriptional regulatory elements of these two related human retroviruses, we performed DNase I footprinting...
In this issue of Blood, Sugata et al report that vaccination against human T-cell leukemia virus type 1 (HTLV-1) basic leucine zipper (bZIP) factor (HBZ) could be used for immunotherapy in adult T-cell leukemia-lymphoma (ATL) patients.
Human T-lymphotropic virus type I (HTLV-I) infects an estimated 15-20 million persons worldwide. A number of diseases have been associated with the virus including adult T-cell leukemia (ATL), HTLV-associated myelopathy/tropical spastic paraparesis (HAM/TSP), HTLV-I uveitis, and HTLV-I-associated infective dermatitis. Once it was shown that there is an increased risk for developing HAM/TSP asso...
Adult T-cell leukemia (ATL), a disorder associated with high mortality rates, arises from human T-lymphotropic virus type I (HTLV-I)-infected CD4+ T cells. We designed a retroviral vector-based gene therapy approach to ATL. The long terminal repeat (LTR) of HTLV-I is transactivated by the viral tax protein. We constructed a hybrid gene consisting of herpes simplex virus thymidine kinase (HSV TK...
Caveolin-1 is implicated in the regulation of signal pathways. Adult T-cell leukemia (ATL) is a T-cell malignancy causatively associated with human T-cell leukemia virus type 1 (HTLV-1). To determine the role of caveolin-1 in leukemogenesis, we examined caveolin-1 expression levels in HTLV-1-infected T-cell lines and ATL cells. These cells expressed high levels of caveolin-1 compared with uninf...
Human T-cell lymphotropic virus type I (HTLV-I) associated adult T-cell leukemia/lymphoma (ATLL) occurs endemically in southwestern Japan, the Caribbean, and West Africa, but occurs sporadically in most of the rest of the world. However, because ATLL and non-HTLV-I associated T-cell neoplasms share overlapping clinicopathologic features, the prevalence of ATLL in nonendemic regions is unknown. ...
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