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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Schwartz, S. Felber, B. K. Fenyö, E. M. Pavlakis, G. N. |
| Description | Author Affiliation: Schwartz S ( Department of Virology, School of Medicine, Karolinska Institute, Stockholm, Sweden.); |
| Abstract | Human immunodeficiency virus type 1 (HIV-1) isolates from various patients were divided into two major groups, rapid/high and slow/low, according to their replication properties in vitro. Rapid/high isolates grow well in cell lines and induce the formation of syncytia in peripheral blood mononuclear cells. In contrast, slow/low isolates do not replicate in cell lines and rarely induce syncytia in peripheral blood mononuclear cells. To understand the differences in replicative capacity of these isolates, a panel of indicator cell lines was used. These cell lines were generated for sensitive detection of HIV-1 isolates and show characteristics of T-lymphoid or monocytoid cells. As a result of infection, chloramphenicol acetyltransferase expression is activated. Rapid/high viruses activate chloramphenicol acetyltransferase expression in T-cell and monocytoid indicator cell lines, whereas slow/low isolates activate chloramphenicol acetyltransferase expression only in monocytoid cell lines. The block in infection of T-lymphoid cells by the slow/low isolates appears to occur early in the infection cycle, prior to the production of the virally encoded tat protein. HIV-1 isolates can thus be distinguished according to target-cell tropism. Monocyte-derived cells seem to be a more general target for the various HIV-1 isolates. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 18 |
| Volume Number | 86 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1989-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | HIV-1 Physiology Virus Replication Cell Line Cell-Free System Chloramphenicol O-Acetyltransferase Genetics Metabolism Classification Isolation & Purification Monocytes T-Lymphocytes Comparative Study Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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