The v-myc oncogene

Clement M. Lee, E. Premkumar Reddy

Research output: Contribution to journalReview articlepeer-review

38 Scopus citations


v-myc is the viral homolog of c-myc transduced by several acute transforming retroviruses, many of which encode this gene as a Gag-Myc fusion protein. The v-myc oncogene can transform several lineages of mammalian and avian cells either alone or in cooperation with other oncogenes. While the Gag portion of the Gag-Myc fusion protein and the nuclear localization signal each appear to be dispensable for transformation, the N- and C-termini of the Myc sequence have been found to be essential for transformation. All v-myc genes contain point mutations which seem to confer a greater potency to v-myc in the process of transformation, proliferation, and apoptosis. In v-myc-transformed myelomonocytic cells, secondary events occur, such as the expression of colony stimulating factor-1 (CSF-1) which play a critical role in immortalization and subsequent tumor progression. Inhibition of the autocrine loop of CSF-1 was found to induce apoptosis in the immortalized cells. While overexpression of v-Myc blocks terminal differentiation of hematopoietic cells, this is not sufficient to block the differentiation of certain neural and skeletal muscle cells. Recent developments on the effects of v-myc on cell growth, transformation, differentiation and apoptosis are discussed in this review.

Original languageEnglish
Pages (from-to)2997-3003
Number of pages7
Issue number19
StatePublished - 13 May 1999
Externally publishedYes


  • Apoptosis
  • Differentiation
  • Gag-Myc
  • Proliferation
  • Transformation
  • v-myc


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