SLAMF1 and B-cell chronic lymphocytic leukemia: Similarly, Mittal and colleagues [41] identified SLAMF1 as one of 27 genes that was overexpressed in CLL cases with cytogenetic markers of good prognosis (del(13q) and normal) relative to cases with cytogenetic markers of poor prognosis (del(11q) and +12), as assessed by fluorescence in situ hybridization (FISH).