Major Histocompatibility Complex II Expression on Oral Langerhans Cells Differentially Regulates Mucosal CD4 and CD8 T Cells
In murine periodontitis, the T helper (Th)17 response against Porphyromonas gingivalis in cervical lymph node is abrogated by diphtheria toxin –driven depletion of Langerhans cells (LCs). We determined the impact of major histocompatibility complex class II (MHC-II) presentation in LCs on Th17 cells in the oral mucosa of mice. Using an established human-Langerin promoter-Cre mouse model, we generated LC-specific deletion of the H2-Ab1 (M HC-II) gene. MHC-II expression was ablated in 81.2% of oral-resident LCs compared with>99% of skin-resident LCs.
Source: Journal of Investigative Dermatology - Category: Dermatology Authors: Lori A. Fischer, Peter D. Bittner-Eddy, Massimo Costalonga Tags: Original Article Source Type: research