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Generation of Human Monocyte-derived Dendritic Cells from Whole Blood
Published on: December 24, 2016
Dendritic cell dysregulation during HIV-1 infection
Elizabeth Miller1, Nina Bhardwaj
1Division of Infectious Diseases, New York University School of Medicine, New York, NY, USA.
Immunological Reviews
|June 19, 2013
Summary
Human immunodeficiency virus-1 (HIV-1) infection impairs dendritic cell (DC) function, hindering antiviral immunity. Understanding myeloid DC and plasmacytoid DC dysfunction is crucial for developing effective HIV-1 therapies.
Area of Science:
- Immunology
- Virology
- Cell Biology
Background:
- Dendritic cells (DCs) are critical innate immune regulators in human immunodeficiency virus-1 (HIV-1) infection.
- HIV-1 manipulates DC function, impairing antiviral immunity and promoting immune activation.
Purpose of the Study:
- To review the differential dysregulation of myeloid DCs (mDCs) and plasmacytoid DCs (pDCs) during HIV-1 infection.
- To provide insights into HIV-1 pathogenesis by examining DC dysfunction.
Main Methods:
- Review of scientific literature on DC function in HIV-1 infection.
- Analysis of the distinct roles of mDCs and pDCs in response to HIV-1.
Main Results:
- HIV-1 evades mDC sensing, leading to poor maturation and impaired adaptive responses.
- mDC function is altered by Toll-like receptor ligands during HIV-1 infection, hindering immunity.
- pDCs exhibit pleiotropic effects, promoting immune activation via interferon secretion but also inducing regulatory T-cells (Tregs) through IDO secretion.
Conclusions:
- Understanding DC dysfunction in HIV-1 infection is key to developing therapeutics.
- Targeting DC pathways could enhance HIV-specific adaptive responses and reduce immune activation.
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