کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5591842 1570702 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selective expression of the transcription elongation factor ELL3 in B cells prior to ELL2 drives proliferation and survival
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شناسی مولکولی
پیش نمایش صفحه اول مقاله
Selective expression of the transcription elongation factor ELL3 in B cells prior to ELL2 drives proliferation and survival
چکیده انگلیسی
B cell activation is dependent on a large increase in transcriptional output followed by focused expression on secreted immunoglobulin as the cell transitions to an antibody producing plasma cell. The rapid transcriptional induction is facilitated by the release of poised RNA pol II into productive elongation through assembly of the super elongation complex (SEC). We report that a SEC component, the Eleven -nineteen Lysine-rich leukemia (ELL) family member 3 (ELL3) is dynamically up-regulated in mature and activated human B cells followed by suppression as B cells transition to plasma cells in part mediated by the transcription repressor PRDM1. Burkitt's lymphoma and a sub-set of Diffuse Large B cell lymphoma cell lines abundantly express ELL3. Depletion of ELL3 in the germinal center derived lymphomas results in severe disruption of DNA replication and cell division along with increased DNA damage and cell death. This restricted utilization and survival dependence reveal a key step in B cell activation and indicate a potential therapeutic target against B cell lymphoma's with a germinal center origin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Immunology - Volume 91, November 2017, Pages 8-16
نویسندگان
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