Epigenetic suppression of SLFN11 in germinal center B-cells during B-cell development

نویسندگان

چکیده

Background SLFN11 has recently been reported to execute cancer cells harboring replicative stress induced by DNA damaging agents. However, the roles of under physiological conditions remain poorly understood. Germinal center B-cells (GCBs) undergo somatic hypermutations and class-switch recombination, which can cause genotoxic stress. Hence, we tested whether expression needs be suppressed in GCBs during B-cell development. Objective To clarify profile different developmental stages B-cell-derived cancers. Methods We analyzed mining cell line databases for normal various types lines. performed dual immunohistochemical staining specific markers human lymphatic tissues. effects two epigenetic modifiers, an EZH2 inhibitor, tazemetostat (EPZ6438) a histone deacetylase panobinostat (LBH589) on GCB-derived lymphoma also examined therapeutic efficacy these drugs combination with cytosine arabinoside SLFN11-overexpressing cells. Results mRNA level was found low both GCB-DLBCL (GCB like-diffuse large lymphoma). Immunohistochemical showed high plasmablasts plasmacytes. The HDAC modifiers upregulated made them more susceptible arabinoside. overexpression further sensitized Conclusions is epigenetically lymphomas. lymphomas treated

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ژورنال

عنوان ژورنال: PLOS ONE

سال: 2021

ISSN: ['1932-6203']

DOI: https://doi.org/10.1371/journal.pone.0237554