Study of interferon (IFN) gene signature (IGS) finds IGS elevated in half of early RA pts; high IGS portends higher DAS28, fewer EULAR good resp & higher IFN-α; the latter assoc w/ epigentic changes, more lymphoctye activation. IFN-α as a biomarker? https://t.co/BHC98OR30A https://t.co/SRE7KVaoha