Cells nonproductively infected with HIV-1 exhibit an aberrant pattern of viral RNA expression: A molecular model for latency
Abstract
U1 and ACH-2 cells are subclones of HIV-1-infected monocyte/macrophage-like and T lymphocyte cell lines, respectively, which express the HIV-1 genome at very low levels. We have examined whether they might provide a model of HIV-1 latency. The patterns of HIV-1-specific RNA expressed in these cells consisted of singly and multiply spliced RNA species, with little or no full-length genomic RNA. Upon stimulation with agents that activate the HIV-1 long terminal repeat in these cells, a marked rise in the amount of small mRNAs, encoding the viral regulatory proteins, preceded the increase in the unspliced RNA. Thus, U1 and ACH-2 cells maintain HIV-1 in a state equivalent to the early phase of a lytic infection and, after stimulation, recapitulate the events of a single cycle infection of highly susceptible target cells.
Additional Information
© 1990 Cell Press. Received 2 April 1990, Revised 19 April 1990. The authors would like to thank Dr. Anthony Fauci, whose discussions of these cell lines motivated the present studies. We would also like to thank Drs. Mark Mussing and Daniel Chang for critical discussions and Nancy Kong for assistance with the densitometer. R. J. P. was funded by Physician Scientist Award #A100930, and this work was in part funded by Public Health Service grants AI26463 and HL43510. The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked "advertisement" in accordance with 16 U.S.C. Section 1734 solely to indicate this fact.Additional details
- Eprint ID
- 103893
- Resolver ID
- CaltechAUTHORS:20200612-145542290
- NIH
- AI00930
- NIH
- AI26463
- NIH
- HL43510
- Created
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2020-06-15Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field