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An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets
Published on: April 18, 2016
Dendritic cells control B cell growth and differentiation
Gaetan Jego1, Virginia Pascual, A Karolina Palucka
1Baylor Institute for Immunology Research and Baylor NIAID Cooperative Center for Translational Research on Human Immunology and Biodefense, Dallas, TX 75204, USA.
Insights
Human dendritic cell (DC) subsets coordinate B cell growth and differentiation. This interplay explains immune responses to mutating microbes and the development of autoimmunity.
Area of Science:
- Immunology
- Cell Biology
Background:
- Dendritic cells (DCs) are crucial for adaptive immunity.
- B cell differentiation is essential for antibody production.
Purpose of the Study:
- To propose a coordinated model of human DC subsets controlling B cell immunity.
- To elucidate the roles of plasmacytoid DCs and myeloid DCs in B cell differentiation and memory formation.
Main Methods:
- This study is primarily theoretical, proposing a model based on existing literature.
- The model integrates known cytokine and cell-cell interaction pathways.
Main Results:
- Plasmacytoid DCs induce memory B cell differentiation into plasma cells via type I interferon and IL-6.
- Myeloid DCs, activated by type I interferon, regulate B cell priming and memory phenotype acquisition through IL-12, IL-6, and Blys/Baff.
- The model incorporates the function of antigen-specific T cells activated by myeloid DCs.
Conclusions:
- Protective humoral immunity arises from the coordinated interaction of human DC subsets.
- This DC interplay may explain immune responses to antigenic drift and the development of autoimmune repertoires.
Abstract:
We propose a model where human dendritic cell (DC) subsets control, in a coordinated fashion, B cell growth and differentiation. Plasmacytoid DCs drive memory B cell differentiation into effector plasma cell via type I interferon and IL-6. Type I interferon activates myeloid DCs that regulate B cell priming and acquisition of memory phenotype via IL-12, IL-6 and Blys/Baff. This model also integrates the role of antigen-specific T cells activated by myeloid DCs. Thus, protective humoral immunity results from a highly coordinated interplay of human DC subsets. This interplay may explain the spreading of immune response to deal with antigenic drift and to maintain an active immunity against mutating microbe. It may also provide an explanation for spreading of the autoimmune repertoire as autoimmunity develops.
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