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CCAAT/enhancer binding proteins are critical components of the transcriptional regulation of hematopoiesis (Review).

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The coordinated expression of four different CCAAT/enhancer binding proteins (C/EBPs), C/EBPalpha, C/EBPbeta, C/EBPdelta, and C/EBPepsilon constitutes a critical component of the myeloid differentiation program. C/EBPs are modular proteins, consisting of an activation domain, DNA binding domain and leucine zipper dimerization region. Recent studies including the analysis of mice deficient in several C/EBP proteins emphasize the effects of these molecules in hematopoiesis. C/EBPalpha is a master regulator of myeloid progenitors, C/EBPbeta plays an important role in macrophage and B-cell development, C/EBPgamma is involved in B-cell development, and C/EBPdelta is upregulated during myelopoiesis. Furthermore, C/EBPepsilon is a regulator of terminal differentiation of eosinophils and functional maturation of neutrophils. The formation of alternative combinations of tissue-specific and cell-stage specific C/EBP dimers may allow differential regulation of target genes in hematopoietic cells and commitment to distinctive hematopoietic lineages.
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Document Type: Research Article

Affiliations: Clinical Gene Therapy Branch, National Institutes of Health, Bethesda, MD 20892, USA.

Publication date: January 1, 1998

More about this publication?
  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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