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2016 ; 113
(49
): 14121-14126
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Epstein-Barr virus super-enhancer eRNAs are essential for MYC oncogene expression
and lymphoblast proliferation
#MMPMID27864512
Liang J
; Zhou H
; Gerdt C
; Tan M
; Colson T
; Kaye KM
; Kieff E
; Zhao B
Proc Natl Acad Sci U S A
2016[Dec]; 113
(49
): 14121-14126
PMID27864512
show ga
Epstein-Barr virus (EBV) super-enhancers (ESEs) are essential for lymphoblastoid
cell (LCL) growth and survival. Reanalyses of LCL global run-on sequencing
(Gro-seq) data found abundant enhancer RNAs (eRNAs) being transcribed at ESEs.
Inactivation of ESE components, EBV nuclear antigen 2 (EBNA2) and
bromodomain-containing protein 4 (BRD4), significantly decreased eRNAs at ESEs
-428 and -525 kb upstream of the MYC oncogene transcription start site (TSS).
shRNA knockdown of the MYC -428 and -525 ESE eRNA caused LCL growth arrest and
reduced cell growth. Furthermore, MYC ESE eRNA knockdown also significantly
reduced MYC expression, ESE H3K27ac signals, and MYC ESEs looping to MYC TSS.
These data indicate that ESE eRNAs strongly affect cell gene expression and
enable LCL growth.