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Replication of herpes simplex virus in T lymphocytes
Parvapan Bhattarakosol1, Chintana Chirathaworn, Phattamawan Chimma
1Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Summary
This study demonstrates that herpes simplex virus (HSV) can replicate in Jurkat human leukemic T lymphocytes. While initial yields are low, phytohemagglutinin (PHA) activation enhances viral production and protein expression.
Area of Science:
- Virology
- Immunology
- Cell Biology
Background:
- Herpes simplex virus (HSV) commonly infects epithelial cells, causing various diseases.
- Viral replication dynamics are influenced by host cell type, viral strain, and infection multiplicity.
- Understanding HSV tropism in different cell types is crucial for comprehending pathogenesis.
Purpose of the Study:
- To investigate the potential for HSV replication in Jurkat human leukemic T lymphocytes.
- To compare HSV replication efficiency in Jurkat cells versus epithelial cells (Vero, HEp-2).
- To explore factors influencing HSV replication in T lymphocytes, such as PHA activation.
Main Methods:
- Infection of Jurkat T lymphocytes and control epithelial cells (Vero, HEp-2) with HSV.
- Quantification of viral yield production in different cell types.
- Assessment of viral protein expression timing and levels.
- Evaluation of phytohemagglutinin (PHA) activation effects on viral replication.
Main Results:
- HSV demonstrated replication in Jurkat cells, albeit with significantly lower yield compared to Vero and HEp-2 cells.
- Phytohemagglutinin (PHA) activation led to enhanced HSV yield production in Jurkat cells.
- Delayed viral protein expression was observed in Jurkat cells, potentially explaining the low initial production.
- The precise mechanism for delayed protein expression and low yield in Jurkat cells remains undetermined.
Conclusions:
- Jurkat human leukemic T lymphocytes support HSV replication, indicating a broader cellular tropism for HSV than previously assumed.
- PHA activation can modulate HSV replication in T lymphocytes, suggesting immune modulation influences viral dynamics.
- Delayed viral protein expression in T lymphocytes is a key factor contributing to reduced viral yields, warranting further mechanistic investigation.