Skip to Main content Skip to Navigation
Journal articles

Dynamics and function of Langerhans cells in vivo: dermal dendritic cells colonize lymph node areas distinct from slower migrating Langerhans cells.

Abstract : Langerhans cells (LCs) are prominent dendritic cells (DCs) in epithelia, but their role in immunity is poorly defined. To track and discriminate LCs from dermal DCs in vivo, we developed knockin mice expressing enhanced green fluorescent protein (EGFP) under the control of the langerin (CD207) gene. By using vital imaging, we showed that most EGFP(+) LCs were sessile under steady-state conditions, whereas skin inflammation induced LC motility and emigration to lymph nodes (LNs). After skin immunization, dermal DCs arrived in LNs first and colonized areas distinct from slower migrating LCs. LCs reaching LNs under steady-state or inflammatory conditions expressed similar levels of costimulatory molecules. Langerin and EGFP were also expressed on thymic DCs and on blood-derived, CD8alpha(+) DCs from all secondary lymphoid organs. By using a similar knockin strategy involving a diphtheria toxin receptor (DTR) fused to EGFP, we demonstrated that LCs were dispensable for triggering hapten-specific T cell effectors through skin immunization.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-00165695
Contributor : Marie Laure Haon <>
Submitted on : Friday, July 27, 2007 - 11:33:36 AM
Last modification on : Saturday, November 14, 2020 - 3:09:40 AM

Links full text

Identifiers

Collections

Citation

Adrien Kissenpfennig, Sandrine Henri, Bertrand Dubois, Corinne Laplace-Builhé, Pierre Perrin, et al.. Dynamics and function of Langerhans cells in vivo: dermal dendritic cells colonize lymph node areas distinct from slower migrating Langerhans cells.. Immunity, Elsevier, 2005, 22 (5), pp.643-54. ⟨10.1016/j.immuni.2005.04.004⟩. ⟨hal-00165695⟩

Share

Metrics

Record views

145