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Updated: Jul 4, 2026

An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets
09:09

An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets

Published on: April 18, 2016

Dendritic cells require the NF-kappaB2 pathway for cross-presentation of soluble antigens

Evan F Lind1, Cory L Ahonen, Anna Wasiuk

  • 1Department of Microbiology and Immunology, Dartmouth Medical School and the Norris Cotton Cancer Center, Lebanon, NH 03756, USA.

Journal of Immunology (Baltimore, Md. : 1950)
|June 21, 2008
PubMed

Insights

NF-kappaB-inducing kinase (NIK) is crucial for non-canonical NF-kappaB activation in dendritic cells. Impaired NIK function prevents CD8+ T cell cross-priming, explaining immune unresponsiveness in alymphoplasia mice.

Area of Science:

  • Immunology
  • Molecular Biology
  • Cell Biology

Background:

  • NF-kappaB-inducing kinase (NIK) activates the non-canonical NF-kappaB pathway.
  • This pathway is critical for signaling through TNF family members like CD40.
  • Dendritic cell (DC) differentiation and function rely on NF-kappaB signaling.

Purpose of the Study:

  • To investigate the role of NIK in CD40 and TLR-induced DC differentiation in vivo.
  • To understand the functional consequences of impaired non-canonical NF-kappaB activation on T cell responses.
  • To identify genes regulated by the NF-kappaB2 pathway in DCs.

Main Methods:

  • Utilized the alymphoplasia (Aly) mouse model with a mutant NIK molecule.
  • Assessed DC differentiation, MHC class II presentation, and in vivo migration.
  • Performed gene expression array analysis on DCs matured in vivo.
  • Studied CD8+ T cell cross-priming to exogenous antigens.

Main Results:

  • Aly DCs exhibit intact MHC class II presentation and migration but fail to cross-prime CD8+ T cells.
  • Gene expression analysis revealed defects in antigen processing pathways in Aly DCs.
  • Identified genes regulated by the NF-kappaB2 pathway in DCs.

Conclusions:

  • NIK plays a significant role in mediating the cross-priming of soluble antigens by DCs.
  • The study elucidates the molecular basis for the immune unresponsiveness observed in the Aly mouse.
  • The NF-kappaB2 pathway is essential for DC function in T cell cross-priming.

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