T cell study of bronchoalveolar lavage fluid, blood & synovium from 17 early RA ACPA+ pts (TCR sequencing & immunophenotyping) found shared lung/joint T cell repertoires driven by smoking. The RA TCR repertoire shaped by MHC predisposition, smoking leading to autoimmunity… https://t.co/0lEVwEbKcW https://t.co/YrhV79AvX4