This inhibitive tumorigenicity role of AC093797.1 was also confirmed by the nude mice tumor formation experiment, the result showed that the volume of tumors in the OE-AC093797.1 group was smaller than the control group, and the decreased Ki67 also revealed the weakened cell proliferation of tumors in the OE-AC093797.1 group. This evidence concerns the gene MKI67 and neoplasm.