PMID- 31799680 OWN - NLM STAT- MEDLINE DCOM- 20201015 LR - 20201015 IS - 2284-0729 (Electronic) IS - 1128-3602 (Linking) VI - 23 IP - 22 DP - 2019 Nov TI - Influence of lncRNA ANRIL on neuronal apoptosis in rats with cerebral infarction by regulating the NF-kappaB signaling pathway. PG - 10092-10100 LID - 19577 [pii] LID - 10.26355/eurrev_201911_19577 [doi] AB - OBJECTIVE: The aim of this study was to evaluate the influence of long non-coding ribonucleic acid (lncRNA) antisense non-coding RNA in the INK4 locus (ANRIL) on neuronal apoptosis in rats with cerebral infarction (CI), and to further explore the underlying mechanism of lncRNA ANRIL in the occurrence and development of CI. MATERIALS AND METHODS: A total of 60 adult male Wistar rats were randomly divided into three groups using a random number table, including sham group (n=20), CI group (n=20) and CI + lncRNA ANRIL knockdown group [CI + lncRNA ANRIL small-interfering RNA (siRNA) group, n=20]. Focal CI was constructed by suture occlusion. After successful modeling, lncRNA ANRIL siRNA was stereotactically injected into the lateral ventricle of the rats. 24 h after operation, the neurological function of the rats in each group was evaluated by the modified neurological severity score (mNSS). Meanwhile, the infarction area of brain tissues was evaluated using the triphenyl tetrazolium chloride (TTC) method. The protein expression levels of apoptosis-related genes, including B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax), were detected via Western blotting. Subsequently, immunofluorescence staining was performed to detect the expression and location of Caspase-3 in brain tissues. Moreover, the apoptosis level of rats in each group was detected by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay. Furthermore, the expressions of nuclear factor-kappaB (NF-kappaB) signaling pathway-related proteins were detected via Western blotting. RESULTS: Polymerase Chain Reaction (PCR) results revealed that the expression level of lncRNA ANRIL in the CI group was significantly increased when compared with that of the sham group (p<0.05). The results of mNSS and TTC staining manifested that knockdown of lncRNA ANRIL could significantly reduce CI-induced neurological deficits and CI area (p<0.05). At the same time, knockdown of lncRNA ANRIL markedly decreased the level of Bax, whereas increased the expression of Bcl-2 (p<0.05). Besides, the number of apoptotic cells in the CI + lncRNA ANRIL siRNA group was remarkably decreased (p<0.05). In addition, lncRNA ANRIL down-regulation remarkably inhibited the phosphorylation of p65 (p<0.05). CONCLUSIONS: The inhibitory effect of lncRNA ANRIL knockdown on neuronal apoptosis in CI rats may be probably related to its inhibition of the NF-kappaB signaling pathway. Furthermore, lncRNA ANRIL inhibitor is expected to become a targeted drug in the clinical treatment of CI. FAU - Zhao, J-H AU - Zhao JH AD - Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China. miller78127@163.com. FAU - Wang, B AU - Wang B FAU - Wang, X-H AU - Wang XH FAU - Wang, J-R AU - Wang JR FAU - Xu, C-W AU - Xu CW LA - eng PT - Journal Article PL - Italy TA - Eur Rev Med Pharmacol Sci JT - European review for medical and pharmacological sciences JID - 9717360 RN - 0 (ANRIL long non-coding RNA, rat) RN - 0 (NF-kappa B) RN - 0 (RNA, Long Noncoding) SB - IM MH - Animals MH - Apoptosis MH - Cerebral Infarction/etiology/*genetics/metabolism MH - Disease Models, Animal MH - Male MH - NF-kappa B/metabolism MH - Neurons/cytology/*metabolism MH - RNA, Long Noncoding/*genetics MH - Random Allocation MH - Rats MH - Rats, Wistar MH - *Signal Transduction MH - *Up-Regulation EDAT- 2019/12/05 06:00 MHDA- 2020/10/21 06:00 CRDT- 2019/12/05 06:00 PHST- 2019/12/05 06:00 [entrez] PHST- 2019/12/05 06:00 [pubmed] PHST- 2020/10/21 06:00 [medline] AID - 19577 [pii] AID - 10.26355/eurrev_201911_19577 [doi] PST - ppublish SO - Eur Rev Med Pharmacol Sci. 2019 Nov;23(22):10092-10100. doi: 10.26355/eurrev_201911_19577.