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2017 ; 14
(5
): 488-499
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Identification of miRNomes associated with adult neurogenesis after stroke using
Argonaute 2-based RNA sequencing
#MMPMID27315491
Liu XS
; Fan BY
; Pan WL
; Li C
; Levin AM
; Wang X
; Zhang RL
; Zervos TM
; Hu J
; Zhang XM
; Chopp M
; Zhang ZG
RNA Biol
2017[May]; 14
(5
): 488-499
PMID27315491
show ga
Neurogenesis is associated with functional recovery after stroke. However, the
underlying molecular mechanisms have not been fully investigated. Using an
Ago2-based RNA immunoprecipitation to immunoprecipated Ago2-RNA complexes
followed by RNA sequencing (Ago2 RIP-seq) approach, we profiled the miRNomes in
neural progenitor cells (NPCs) harvested from the subventricular zone (SVZ) of
the lateral ventricles of young adult rats. We identified more than 7 and
15 million reads in normal and ischemic NPC libraries, respectively. We found
that stroke substantially changed Ago2-associated miRNA profiles in NPCs compared
to those in non-ischemic NPCs. We also discovered a new complex repertoire of
isomiRs and multiple miRNA-miRNA* pairs and numerous novel miRNAs in the
non-ischemic and ischemic NPCs. Among them, pc-3p-17172 significantly regulated
NPC proliferation and neuronal differentiation. Collectively, the present study
reveals profiles of Ago2-associated miRNomes in non-ischemic and ischemic NPCs,
which provide a molecular basis to further investigate the role of miRNAs in
mediating adult neurogenesis under physiological and ischemic conditions.