Volume 56, Issue 3 p. 4013-4030
RESEARCH REPORT

MicroRNA-27a-3p relieves inflammation and neurologic impairment after cerebral ischaemia reperfusion via inhibiting lipopolysaccharide induced TNF factor and the TLR4/NF-κB pathway

Jing Luo

Jing Luo

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Search for more papers by this author
Junjie Li

Junjie Li

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Search for more papers by this author
Li Xiong

Li Xiong

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Search for more papers by this author
Linna Fan

Linna Fan

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Search for more papers by this author
Lijia Peng

Lijia Peng

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Search for more papers by this author
Yuan Yang

Yuan Yang

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Search for more papers by this author
Di Lu

Corresponding Author

Di Lu

Incubation Center for Scientific and Technological Achievements, Kunming Medical University, Kunming, Yunnan, China

Correspondence

Jianlin Shao, Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, 295 Xichang Road, Wuhua District, Kunming, Yunnan 650000, China.

Email: [email protected]

Di Lu, Incubation Center for Scientific and Technological Achievements, Kunming Medical University, Kunming, Yunnan 650500, China.

Email: [email protected]

Search for more papers by this author
Jianlin Shao

Corresponding Author

Jianlin Shao

Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China

Correspondence

Jianlin Shao, Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, 295 Xichang Road, Wuhua District, Kunming, Yunnan 650000, China.

Email: [email protected]

Di Lu, Incubation Center for Scientific and Technological Achievements, Kunming Medical University, Kunming, Yunnan 650500, China.

Email: [email protected]

Search for more papers by this author
First published: 18 May 2022

Jing Luo and Junjie Li contribute equally.

Edited by: Angeles Almeida

Funding information: Applied Basic Research Joint Project of Yunnan Province, Grant/Award Number: 2017FE468(-034); Weifeng Yu Expert Workstation project, Grant/Award Number: 2017IC067; Industry Technology Leading Talent Training Program in Yunnan, Grant/Award Number: YLXL20170054; Key Applied Basic Research Program of Yunnan Province, Grant/Award Number: 2018FA042; National Nature Science Foundation of China, Grant/Award Numbers: 81760248, 81960250

Abstract

Cerebral ischaemia reperfusion (CIR) affects microRNA (miR) expression and causes substantial inflammation. Here, we investigated the influence and underlying mechanism of miR-27a-3p in rats with CIR. First, biliverdin treatment relieved cerebral infarction and decreased the levels of serum interleukin (IL)-1β, IL-6, and TNF-α. Through our previous study, we found key miR-27a-3p and its targeted gene LITAF might involve in the molecular mechanism of CIR. Then, the regulation between miR-27a-3p and LITAF was verified by the temporal miR-27a-3p and LITAF expression profiles and luciferase assay. Moreover, intracerebroventricular injection of the miR-27a-3p mimic significantly decreased the LITAF, TLR4, NF-κB, and IL-6 levels at 24 h post-surgery, whereas miR-27a-3p inhibitor reversed these effects. Furthermore, miR-27a-3p mimic could relieve cerebral infarct and neurologic deficit after CIR. In addition, injection of miR-27a-3p mimic decreased neuronal damage induced by CIR. Taken together, our results suggest that miR-27a-3p protects against CIR by relieving inflammation, neuronal damage, and neurologic deficit via regulating LITAF and the TLR4/NF-κB pathway.

CONFLICT OF INTEREST

The authors declare that they have no conflict of interest.

PEER REVIEW

The peer review history for this article is available at https://publons.com/publon/10.1111/ejn.15720.

DATA AVAILABILITY STATEMENT

Data are available on request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.