While our data support a potential anti-tumor role for CCL2 in TEN-mediated tumor killing in the poorly aggressive 67NR BALB/c mouse tumor model, when CCL2 was delivered via the intranasal route, an increase in CCL2 associated CD4+ T cell and CD206+ macrophage recruitment was associated with enhanced seeding and growth of tumor cells in the lung. Here, MRC1 is linked to neoplasm.