Abstract
Regulatory T (Treg) cells are implicated in modulating immunopathogenesis of a number of diseases including autoimmune and infectious diseases. Treg cells are likely to serve as primary target cells as well as immunosuppressive cells in human immunodeficiency virus type 1 (HIV-1) infection due to high expression of HIV-1 receptor and coreceptors. Recent advances in animal models including humanized mouse models, and human Treg studies, allow us to investigate the role of Treg cells in HIV-1 infection and immunopathogenesis. Accumulating data suggest that Treg cells may play a distinct role in HIV-1 infection and immunopathogenesis depending on the course of infection. During the acute phase of infection, Treg cells are likely to contribute to elevated HIV-1 infection by suppressing anti-HIV immunity, and their gradual impairment may contribute to chronic immune activation. On the other hand, Treg cells may suppress virus replication by direct or indirect mechanisms during the chronic phase of infection. This chapter provides a brief introduction to Treg cells, and their development and function in humanized mice. The role of Treg cells in HIV-1 infection and immunopathogenesis is also discussed based on recent findings.
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Abbreviations
- AIDS:
-
Acquired immunodeficiency syndrome
- cAMP:
-
Cyclic adenosine monophosphate
- FOXP3:
-
Forkhead box P3
- HIV-1:
-
Human immunodeficiency virus type 1
- HSC:
-
Hematopoietic stem cell
- ONTAK:
-
Denileukin difftitox
- Tc:
-
Conventional T cell
- TCR:
-
T cell receptor
- TGF-β:
-
Transforming growth factor-beta
- Treg cell:
-
Regulatory T cell
- tTreg cell:
-
Thymus-derived Treg cell
- pTreg cell:
-
Peripherally-derived Treg cell
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Nunoya, Ji., Su, L. (2014). Development and Function of Human CD4+CD25+FOXP3+ Regulatory T Cells in Humanized Mouse and HIV-1 Infection. In: Poluektova, L., Garcia, J., Koyanagi, Y., Manz, M., Tager, A. (eds) Humanized Mice for HIV Research. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-1655-9_22
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DOI: https://doi.org/10.1007/978-1-4939-1655-9_22
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