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Dendritic cell lineage, plasticity and cross-regulation
Y J Liu1, H Kanzler, V Soumelis
1DNAX Research Institute, 901 California Ave., Palo Alto, CA 94304, USA. yliu@dnax.org
Nature Immunology
|June 29, 2001
Summary
Dendritic cells (DCs) initiate immune responses by presenting antigens. This review explores their roles in directing T cell immunity and innate immunity, highlighting myeloid and lymphoid lineages.
Area of Science:
- Immunology
- Cell Biology
- Infectious Disease
Background:
- Dendritic cells (DCs) are key antigen-presenting cells initiating T cell-mediated immunity.
- Understanding DC functions beyond initial T cell activation is crucial for immune regulation.
- Evidence suggests distinct myeloid and lymphoid DC lineages with specialized roles.
Purpose of the Study:
- To review advancements in understanding DC functions in adaptive and innate immunity.
- To summarize the evidence for distinct myeloid and lymphoid DC lineages.
- To propose a model where DC functions are shaped by pathogen encounters and evolutionary history.
Main Methods:
- Literature review of immunological research on dendritic cells.
- Synthesis of data on DC lineage differentiation and function.
- Analysis of innate immune signaling pathways influencing DC behavior.
Main Results:
- DCs regulate the type of T cell-mediated immune responses.
- DCs play critical roles in innate immunity against microbial pathogens.
- Myeloid and lymphoid DC lineages exhibit distinct functional profiles.
Conclusions:
- DC functions are diverse, extending beyond initiating primary immune responses.
- Lineage origin and innate immune signaling instruct DCs for specific immune outcomes.
- DCs integrate pathogen-derived signals and evolutionary heritage to orchestrate adaptive immunity.