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The Ikaros family in lymphocyte development

Beate Heizmann1, Philippe Kastner2, Susan Chan1

  • 1Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U964, CNRS UMR 7104, Université de Strasbourg, 67404 Illkirch, France.

Current Opinion in Immunology
|December 27, 2017
PubMed

The IKZF family of transcription factors are essential regulators of lymphopoiesis. Ikaros, Helios, Aiolos and Eos function as transcriptional repressors and activators during T and B cell differentiation and in mature cell function, depending on the stage of development and/or cell type. Their potential mechanisms of action are varied. Ikaros family proteins partner with multiple complexes, including NuRD, PRC2 and transcription elongation factors, to modulate gene expression and the chromatin state. In humans, mutations in the IKZF genes are associated with B cell deficiency, leukemias and autoimmunity. In this review, we focus on the function of Ikaros family proteins in early T and B lymphocyte development, and discuss the molecular and physiological activities of this family.

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