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Human T-cell leukaemia virus type 1: parasitism and pathogenesis.

Human T-cell leukaemia virus type 1: parasitism and pathogenesis.
Author Information (click to view)

Bangham CRM, Matsuoka M,


Bangham CRM, Matsuoka M, (click to view)

Bangham CRM, Matsuoka M,

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Philosophical transactions of the Royal Society of London. Series B, Biological sciences 372(1732) pii 10.1098/rstb.2016.0272

Abstract

Human T-cell leukaemia virus type 1 (HTLV-1) causes not only adult T-cell leukaemia-lymphoma (ATL), but also inflammatory diseases including HTLV-1-associated myelopathy/tropical spastic paraparesis. HTLV-1 transmits primarily through cell-to-cell contact, and generates abundant infected cells in the host in order to survive and transmit to a new host. The resulting high proviral load is closely associated with the development of ATL and inflammatory diseases. To increase the number of infected cells, HTLV-1 changes the immunophenotype of infected cells, induces proliferation and inhibits apoptosis through the cooperative actions of two viral genes, tax and HTLV-1 bZIP factor (HBZ). As a result, infected cells survive, proliferate and infiltrate into the tissues, which is critical for transmission of the virus. Thus, the strategy of this virus is indivisibly linked with its pathogenesis, providing a clue for prevention and treatment of HTLV-1-induced diseases.This article is part of the themed issue ‘Human oncogenic viruses’.

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