LAMP3 and synovial sarcoma: Anti-Ro/SSA and anti-La/SSB antibodies were detected in sera from LAMP3 mice 6 months post-cannulation (figure 1D), consistent with that LAMP3 expression was associated with serum anti-Ro/SSA and/or anti-La/SSB in patients with SS, and that in vitro LAMP3 expression promoted the accumulation and release of SSA and SSB autoantigens.11 These findings suggest that LAMP3 expression in vivo can stimulate an SS-like phenotype in mice.