Abstract
Knockdown of lncRNA BDNF-AS alleviates isoflurane-induced neuro-inflammation and cognitive dysfunction through modulating miR-214-3p
- Department of Anesthesiology, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, China
- Department of Operating Room, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Nursing, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Anesthesiology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Anesthesiology, The Second Hospital of Shandong University, Shandong University, Jinan, China
Introduction:
As one of the most commonly used anesthetics, isoflurane has been demonstrated to possess a variety of protective effects. However, its’ neurological impaired effect should be considered during clinical application. Roles of lncRNA BDNF-AS (BDNF-AS) and miR-214-3p in isoflurane-injured microglia and rats were investigated in this study, aiming to disclose the mechanism of isoflurane damage and to provide candidate therapeutic targets.
Material and methods:
Isoflurane-induced microglia cells and rat models were established with 1.5% isoflurane. Inflammation and oxidative stress of microglia cells were evaluated with a level of pro-inflammation cytokines, malondialdehyde (MDA), superoxide dismutase (SOD), and nitrite. Cognitive and learning function of rats were assessed with Morris water maze task. Expressions of BDNF-AS and miR-214-3p and their function in the isoflurane-induced microglia cells and rats were estimated with PCR and corresponding transfection.
Results:
Isoflurane induced significant neuro-inflammation and oxidative stress in the microglia cells. The increased BDNF-AS and the decreased miR-214-3p were noted, and BDNF-AS was found to negatively regulate miR-214-3p in the isoflurane-induced microglia cells. Isoflurane caused cognitive dysfunction in rats, and resulted in a significant inflammatory response. The knockdown of BDNF-AS significantly alleviated the neurological impairment induced by isoflurane, which was reversed by silencing miR-214-3p.
Conclusions:
In isoflurane-induced neuro-inflammation and cognitive dysfunction, BDNF-AS showed a significant protective effect on the neurological impairment induced by isoflurane through modulating miR-214-3p.
Keywords
isoflurane, lncRNA BDNF-AS, miR-214-3p, neuro-inflammation, cognitive and learning dysfunction
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