MYC and neoplasm: We were able to detect HEL transcripts and HEL protein in cells obtained from either a primary Eμ-MYC/BCRHEL/sHEL tumor or an MMTV-TRE-MYC/BCRHEL/sHEL tumor, but not in cells obtained from either Eμ-MYC or Eμ-MYC/BCRHEL tumors (unpublished data).