DCX and rheumatoid arthritis: GAS5 expression was decreased in the SLE patients from the testing set compared with that in the RA and pSS patients; linc0597 levels were lower in the SLE patients from the testing set compared with those in the RA patients; lnc7074 levels were lower in the SLE patients from the testing set compared with those in the pSS patients; and lnc-DC levels were lower in the SLE patients compared with those in the pSS patients.