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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bamford, R. N. Sharma, H. Waldmann, T. A. Battiata, A. P. Burton, J. D. |
| Description | Author Affiliation: Bamford RN ( Metabolism Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-1374, USA.); |
| Abstract | We reported previously that the human T-cell lymphotrophic virus type I (HTLV-I)-associated adult T-cell leukemia line HuT-102 produces a cytokine designated interleukin (IL) T that requires interleukin (IL) 2 receptor beta-subunit expression for its action. Using anti-cytokine antibodies, we demonstrated that IL-T is identical to the simultaneously described IL-15. When compared to activated monocytes, IL-15 mRNA expression was 6- to 10-fold greater in HuT-102 cells. The predominant IL-15 message from HuT-102 is a chimeric mRNA joining a segment of the R region of the long terminal repeat of HTLV-I and the 5'-untranslated region (UTR) of IL-15. Normally, by alternative splicing, this 118-nucleotide R element represents the most 5' region of several HTLV-I transcripts including tax, rex, and env. The introduction of the R element eliminated over 200 nucleotides of the IL-15 5'-UTR, including 8 of 10 upstream AUGs that are present in normal IL-15 messages. On analysis of the 5'-UTR of normal IL-15, we demonstrated that the presence of these 10 upstream AUGs interferes with IL-15 mRNA translation. Thus, IL-15 synthesis by the adult T-cell leukemia line HuT- 102 involves an increase in IL-15 mRNA transcription and translation secondary to the production of an HTLV-I R element fusion message that lacks many upstream AUGs. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 7 |
| Volume Number | 93 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1996-05-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Gene Expression Regulation, Viral Human T-lymphotropic Virus 1 Immunology Interleukins Biosynthesis Leukemia-Lymphoma, Adult T-Cell Protein Biosynthesis Recombinant Fusion Proteins T-Lymphocytes Cell Line Codon Genetics Interleukin-15 Lipopolysaccharides Pharmacology Lymphocyte Activation Molecular Sequence Data Monocytes RNA, Messenger Metabolism Drug Effects T-Lymphocytes, Cytotoxic Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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