Dysregulation of the C/EBPα differentiation pathway in human cancer

Steffen Koschmieder, Balazs Halmos, Elena Levantini, Daniel G. Tenen

Research output: Contribution to journalReview articlepeer-review

175 Scopus citations


While much is known about aberrant pathways affecting cell growth and apoptosis, our understanding of another critical step of neoplastic transformation, differentiation arrest, remains poor. The differentiation- inducing transcription factor CCAAT enhancer binding protein alpha (C/EBPα) is required for proper control of adipogenesis, glucose metabolism, granulocytic differentiation, and lung development. Studies investigating the function of this protein in hematopoietic malignancies as well as in lung and skin cancer have revealed numerous ways how tumor cells abrogate C/EBPα function. Genetic and global expression analysis of acute myeloid leukemia (AML) cases identifies C/EBPα-deficient AML as a separate entity yielding novel classification schemes. In patients with a dysfunctional C/EBPα pathway, targeted therapies may overcome the block in differentiation, and in combination with conventional chemotherapy, may lead to complete eradication of the malignant clone. Overall, a better understanding of the mechanisms of how C/EBPα dysregulation participates in the neoplastic process has opened new gateways for differentiation biology research.

Original languageEnglish (US)
Pages (from-to)619-628
Number of pages10
JournalJournal of Clinical Oncology
Issue number4
StatePublished - Feb 1 2009
Externally publishedYes

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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