slan/M-DC8+ cells, in fact, have been identified in mucosal associated lymphoid tissue (such as tonsils [17],[11] and intestine Peyer's patches [17]), in skin of inflammatory diseases including lupus erythematosus [18] and psoriasis [14], in the colonic mucosa of Crohn disease patients [16-17], as well as in carcinoma-draining lymph nodes [11]. The gene discussed is NSL1; the disease is psoriasis.