BTNL2 and colitis: Btnl2 expression is upregulated in the distal colon during DSS-induced colitis and Btnl2-KO colitic mice exhibit a delay in recovery during the mucosal repair phase of the disease, potentially due to γδ IEL-dependent and -independent (i.e. Tregs, proinflammatory helper T cells) mechanisms to controlling the damage caused by epithelial injury.