CD4+CD8αα+ is the dominant phenotype of intraepithelial lymphocytes and regulated by ThPOK and Runx3 in oral lichen planus

CD4⁺CD8αα⁺ IELs may be the dominant phenotype of IELs in OLP, and the differentiation of CD4⁺CD8αα⁺ IELs in OLP is negatively regulated by ThPOK and positively regulated by Runx3.