VIL1 and neoplasm: To gain further insight into the mechanisms by which the tumor number could be reduced in the small intestine of LAT1fl/fl; vil-cre; ApcMin/+ mice, we formulated two hypotheses: the same number of tumors was initiated, but slow tumor growth or increased apoptosis resulted in undetectably small tumors; or tumor initiation was reduced in the LAT1fl/fl; vil-cre; ApcMin/+ mice.