MMP10 and neoplasm: Pathological examination of lung tissues at the time of sacrifice demonstrated that tumor take was 100% for NT RNAi CMT167/luc oncosphere cells (9/9) with an average tumor size of 3.63 +/−.35 mm2, but only 45% tumor take for parental NT RNAi CMT167/luc cells (5/11) with an average tumor size of 0.42 +/−.06 mm2, and 27% tumor take for Mmp10 RNAi CMT167/luc oncosphere cells (3/11) with an average tumor size of 0.36 +/−.09 mm2.