TLR2 and melanoma: C57BL/6 (6 weeks old), BALB/c, OT-I and OT-II TCR transgenic mice and C57BL/6-Ly5.1 (CD45.1) congenic mice; TLR2, TLR4 and SR-A-KO mice; the murine melanoma cell line B16F10 (ATCC, CRL-6475) expressing OVA (B16-OVA) and murine carcinoma cell line CT26 (ATCC, CRL-2639)