We did not measure the CCL2 levels in the serum or lung after implantation of the TβR2WT PyMT into the MFP as compared to normal lung or lung after tail vein injection of PyMT-TβR2KO alone, so we cannot definitely equate the suppression of tumor outgrowth in the lungs to elevations in CCL2. This evidence concerns the gene CCL2 and neoplasm.