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Histone acetylation is an important mechanism in the regulation of gene expression and plays a crucial role in both cellular development and cellular response to external or internal stimuli. One key aspect of this form of regulation is that acetylation marks can be added and removed from sites of regulation very quickly through the activity of histone acetyltransferases (HATs) and histone deacetylases (HDACs). The activity of both HATs and HDACs has been shown to be important for both physiological hematopoiesis as well as during development of hematological neoplasia, such as lymphomas. In the present study we analyzed the effect of knockout of the two HDACs, Hdac1 and Hdac2 in cells expressing the fractalkine receptor (Cx3cr1) on lymphocyte development. We report data showing a maturation defect in mice harboring a Cx3cr1 dependent knockout of Hdac1 and 2. Furthermore, we report that these mice develop a T-cell neoplasia at about 4-5 months of age, suggesting that a Cx3cr1 expressing subpopulation of immature T-cells gives rise to T-cell lymphomas in the combined absence of Hdac1 and Hdac2.


Moumita Datta, Ori Staszewski. Hdac1 and Hdac2 are essential for physiological maturation of a Cx3cr1 expressing subset of T-lymphocytes. BMC research notes. 2021 Apr 13;14(1):135

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PMID: 33849645

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