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Besides the physiological role of histone deacetalylases in maintaining normal cellular integrity, the acetylation landscape is changed in cancer cells, which has been implicated as a potential target in cancer therapy. The overexpression of certain HDACs correlates with specific cancer types. Therefore, the development of specific HDAC inhibitors may extend the therapeutic strategy for cancer therapy. Here, we describe how to investigate the therapeutic potential of specific HDACi by treatment in a mouse model for B-cell lymphoma, exemplified by the HDAC6 inhibitor Marbostat-100., (© 2023. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.)

Histone deacetylase inhibitors (HDACi) are used as therapeutics for several B cell-derived malignancies. Furthermore, they have been shown to modulate the response of the immune system, like the B cell function. HDACi treatment affects differentiation, proliferation, and survival of B cells. Here we describe how to investigate the effects of HDACi treatment on naïve B cells regarding class-switch recombination (CSR) in vitro using flow cytometry.