RT Journal Article SR Electronic T1 Regulatory T cells and COPD JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1176 OP 1178 DO 10.1136/thoraxjnl-2013-203878 VO 68 IS 12 A1 Rachel Dancer A1 David M Sansom YR 2013 UL http://thorax.bmj.com/content/68/12/1176.abstract AB While the innate immune system has long been implicated in the pathogenesis of COPD, a role for the acquired immune system is less well studied. The increasing recognition that COPD shares features with autoimmune disease has led to interest in a potential role for regulatory T cells, which are intimately involved in the control of autoimmunity. The suggestion that regulatory T cell numbers are increased in patients with COPD may indicate their dysfunction or resistance to suppression by target cells. Investigation of regulatory T cells may therefore be of importance in understanding the inflammation and tissue damage that occurs in patients with COPD who cease smoking.