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Human T-cell leukemia virus type I and adult T-cell leukemia

Human T-cell leukemia virus type I and adult T-cell leukemia Human T-cell leukemia virus type I (HTLV-I) causes adult T-cell leukemia (ATL) in about 5% of carriers after a long latent period. After its infection, HTLV-I promotes the clonal proliferation of HTLV-I infected cells in vivo by actions of encoded viral proteins, including Tax. However, leukemic cells frequently lack the expression of Tax by the genetic and epigenetic changes of HTLV-I provirus, suggesting that Tax is not always necessary after transformation. Alternatively, ATL cells without Tax protein could escape from the host immune system since Tax is the major target of cytotoxic lymphocytes. During the latent period, alterations of host genome accumulate, finally leading to onset of ATL. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Oncogene Springer Journals

Human T-cell leukemia virus type I and adult T-cell leukemia

Oncogene , Volume 22 (33) – Aug 11, 2003

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References (71)

Publisher
Springer Journals
Copyright
Copyright © 2003 by Nature Publishing Group
Subject
Medicine & Public Health; Medicine/Public Health, general; Internal Medicine; Cell Biology; Human Genetics; Oncology; Apoptosis
ISSN
0950-9232
eISSN
1476-5594
DOI
10.1038/sj.onc.1206551
Publisher site
See Article on Publisher Site

Abstract

Human T-cell leukemia virus type I (HTLV-I) causes adult T-cell leukemia (ATL) in about 5% of carriers after a long latent period. After its infection, HTLV-I promotes the clonal proliferation of HTLV-I infected cells in vivo by actions of encoded viral proteins, including Tax. However, leukemic cells frequently lack the expression of Tax by the genetic and epigenetic changes of HTLV-I provirus, suggesting that Tax is not always necessary after transformation. Alternatively, ATL cells without Tax protein could escape from the host immune system since Tax is the major target of cytotoxic lymphocytes. During the latent period, alterations of host genome accumulate, finally leading to onset of ATL.

Journal

OncogeneSpringer Journals

Published: Aug 11, 2003

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