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HIV-1 expression by T8 lymphocytes after transfection
R Cheynier1, M Soulha, F Laure
1Université Pierre et Marie Curie, Paris, France.
AIDS Research and Human Retroviruses
|February 1, 1988
Summary
Human Immunodeficiency Virus type 1 (HIV-1) can infect both T4 and T8 lymphocytes. Transfected T8 cells show long-term survival without significant cytopathic effects, offering insights into viral tropism and disease progression.
Area of Science:
- Immunology
- Virology
- Molecular Biology
Background:
- Acquired Immune Deficiency Syndrome (AIDS) is characterized by T4 lymphocyte depletion.
- The Human Immunodeficiency Virus type 1 (HIV-1) genome has been cloned and demonstrated to be infectious in vitro.
- Understanding HIV-1 tropism is crucial for developing therapeutic strategies.
Purpose of the Study:
- To investigate the susceptibility of T4 and T8 lymphocyte subpopulations to HIV-1 transfection.
- To characterize viral protein expression and infectious particle production in transfected lymphocytes.
- To assess the long-term viability of transfected T8 cells.
Main Methods:
- Molecular cloning of the HIV-1 genome.
- Transfection of HIV-1 into isolated T4 and T8 lymphocyte subpopulations.
- Short- and long-term cell cultures.
- Detection of viral proteins and infectious virus particles via appropriate assays.
- Monitoring of cytopathic effects in cultured cells.
Main Results:
- HIV-1 successfully transfected into both T4 and T8 lymphocyte subpopulations.
- Viral proteins and infectious virus particles were detected in both short- and long-term cultures of transfected cells.
- Transfected T8 cells demonstrated prolonged survival in culture with no apparent cytopathic effect.
Conclusions:
- HIV-1 exhibits tropism for both T4 and T8 lymphocytes.
- T8 lymphocytes can support HIV-1 replication and particle production.
- The lack of cytopathic effect in long-term T8 cultures suggests differential cellular responses to HIV-1 infection.