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2014 ; 33
(17
): 1912-27
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K-Lysine acetyltransferase 2a regulates a hippocampal gene expression network
linked to memory formation
#MMPMID25024434
Stilling RM
; Rönicke R
; Benito E
; Urbanke H
; Capece V
; Burkhardt S
; Bahari-Javan S
; Barth J
; Sananbenesi F
; Schütz AL
; Dyczkowski J
; Martinez-Hernandez A
; Kerimoglu C
; Dent SY
; Bonn S
; Reymann KG
; Fischer A
EMBO J
2014[Sep]; 33
(17
): 1912-27
PMID25024434
show ga
Neuronal histone acetylation has been linked to memory consolidation, and
targeting histone acetylation has emerged as a promising therapeutic strategy for
neuropsychiatric diseases. However, the role of histone-modifying enzymes in the
adult brain is still far from being understood. Here we use RNA sequencing to
screen the levels of all known histone acetyltransferases (HATs) in the
hippocampal CA1 region and find that K-acetyltransferase 2a (Kat2a)--a HAT that
has not been studied for its role in memory function so far--shows highest
expression. Mice that lack Kat2a show impaired hippocampal synaptic plasticity
and long-term memory consolidation. We furthermore show that Kat2a regulates a
highly interconnected hippocampal gene expression network linked to neuroactive
receptor signaling via a mechanism that involves nuclear factor
kappa-light-chain-enhancer of activated B cells (NF-?B). In conclusion, our data
establish Kat2a as a novel and essential regulator of hippocampal memory
consolidation.