biostudies-literatureUnknown131(14)Osswald CDWe recently found that FOXO1 repression contributes to the oncogenic program of classical Hodgkin lymphoma (cHL). Interestingly, FOXO3A, another member of the FOXO family, was reported to be expressed in the malignant Hodgkin and Reed-Sternberg cells of cHL at higher levels than in non-Hodgkin lymphoma subtypes. We thus aimed to investigate mechanisms responsible for the maintenance of FOXO3A as well as the potential role of FOXO3A in cHL. Here, we show that high FOXO3A levels in cHL reflect a B-cell-differentiation-specific pattern. In B cells, FOXO3A expression increases during the process of centroblast to plasma cell (PC) differentiation. FOXO3A levels in cHL were found higher than in germinal center B cells, but lower than in terminally differentiated PCs. This intermediate FOXO3A expBlood1556-1567https://www.ebi.ac.uk/biostudies/studies/S-EPMC5887767biostudies-literatureFine-tuning of FOXO3A in cHL as a survival mechanism and a hallmark of abortive plasma cell differentiation.PMC5887767Vogel MJSteidl CGuan HGehringer FUshmorov AXie LHerrmann FChan FCOsswald CDPick SMWirth TfalseFine-tuning of FOXO3A in cHL as a survival mechanism and a hallmark of abortive plasma cell differentiation.We recently found that FOXO1 repression contributes to the oncogenic program of classical Hodgkin lymphoma (cHL). Interestingly, FOXO3A, another member of the FOXO family, was reported to be expressed in the malignant Hodgkin and Reed-Sternberg cells of cHL at higher levels than in non-Hodgkin lymphoma subtypes. We thus aimed to investigate mechanisms responsible for the maintenance of FOXO3A as well as the potential role of FOXO3A in cHL. Here, we show that high FOXO3A levels in cHL reflect a B-cell-differentiation-specific pattern. In B cells, FOXO3A expression increases during the process of centroblast to plasma cell (PC) differentiation. FOXO3A levels in cHL were found higher than in germinal center B cells, but lower than in terminally differentiated PCs. This intermediate FOXO3A exp2018-01-01T00:00:00Z2018 Apr2026-04-29T07:22:15.809Z2019-03-26T23:52:33ZS-EPMC58877672943995410.1182/blood-2017-07-795278