HIV genes diversify in B cells.

Abstract:

:Mutation of the human immunodeficiency virus by host cells inhibits viral dissemination by creating non-functional variants. However, viral mutation does not always eliminate the ability of the virus to disseminate and, in fact, is thought to promote persistence by generating functional mutants that evade immunity or drugs. How and where HIV mutates is not known. Accordingly, where and to what extent variants emerge may be determined by the cell type with optimal mutation apparatus as well as by the properties of the viral genomic sequence itself. Here we considered that HIV, which can infect B cells, may co-opt the Ig somatic hypermutation machinery to generate functional variants and asked whether the HIV envelope coding sequence can diversify in B cells. We show that an HIV envelope coding sequence transfected into B cells mutates in a manner consistent with somatic hypermutation, causing the production of viral protein variants. This result demonstrates that B cells can express and diversify HIV proteins. Thus, B cells may contribute to viral evasion and to the development of multi-drug resistance.

journal_name

Curr HIV Res

journal_title

Current HIV research

authors

Balin SJ,Ross TM,Platt JL,Cascalho M

doi

10.2174/157016208783571919

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

10-8

issue

1

eissn

1570-162X

issn

1873-4251

journal_volume

6

pub_type

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