CD1D and colon carcinoma: Model of CT26 colon carcinoma metastasis to the lung (Jα18 −/−, CD1d −/− mice): 1. Reduced number of metastatic lung nodules in groups treated with anti-CD1d 2. No effect in regulating tumor metastasis/surveillance in Jα18 −/− mice, compared to the effective CD1d −/− mice