IFNA1 and synovial sarcoma: Inamo et al. found that the lncRNA LINC00487 was upregulated in B cell subsets in patients with SS, and the expression of LINC00487 was correlated with disease activity assessed by ESSDAI; LINC00487 was found to be induced by IFN-α [52], which is also regulated by TLR signaling, as discussed in Section 3 [30].