Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux
The incidence of diabetes–associated cognitive dysfunction is increasing. However, few clinical interventions are available to prevent the disorder. Several researches have shown that liraglutide, as a glucagon-like peptide-1 analog, has protective effects on various neurodegenerative diseases, but...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2021-11-01
|
Series: | Journal of Pharmacological Sciences |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S1347861321000712 |
id |
doaj-5b7d4589da4b4b52a1c39c425ce4decb |
---|---|
record_format |
Article |
spelling |
doaj-5b7d4589da4b4b52a1c39c425ce4decb2021-09-09T04:27:12ZengElsevierJournal of Pharmacological Sciences1347-86132021-11-011473234244Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic fluxMeng Zhang0Wenhui Yan1Ye Yu2Jie Cheng3Xinyao Yi4Tingli Guo5Na Liu6Jia Shang7Zhuanzhuan Wang8Hao Hu9Lina Chen10Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, ChinaDepartment of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an 710061, China; Corresponding author. No. 76 Yanta West Road, Xi'an 710061, Shaanxi, PR China.The incidence of diabetes–associated cognitive dysfunction is increasing. However, few clinical interventions are available to prevent the disorder. Several researches have shown that liraglutide, as a glucagon-like peptide-1 analog, has protective effects on various neurodegenerative diseases, but its roles in diabetic cognitive dysfunction are rarely reported. This study aims to investigate the protective effects of liraglutide on diabetic cognitive dysfunction and its underlying mechanisms. In vivo, the effects of liraglutide treatment were investigated in a mouse model of type 2 diabetes mellitus (T2DM). In vitro, we investigated the effects of liraglutide on the high-glucose-induced rat primary neurons. The results showed that liraglutide reduced the escape latency and increased the time in effective area in the Morris water maze test, improved the damage of hippocampal and synaptic ultrastructure, and decreased the accumulation of amyloid β protein in hippocampus of T2DM mice. Furthermore, liraglutide increased the ratio of microtubule-associated protein light 1 chain Ⅱ/Ⅰ, the expression of Beclin1 protein and Lysosome-associated membrane protein 2 in vivo and vitro. Additionally, Bafilomycin A1 which can inhibit the fusion of autophagosome and lysosome partially abolished the effects of liraglutide. These findings indicate liraglutide ameliorates diabetes-associated cognitive dysfunction by rescuing autophagic flux.http://www.sciencedirect.com/science/article/pii/S1347861321000712Diabetes-associated cognitive dysfunctionLiraglutideAutophagic fluxAmyloid β |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Meng Zhang Wenhui Yan Ye Yu Jie Cheng Xinyao Yi Tingli Guo Na Liu Jia Shang Zhuanzhuan Wang Hao Hu Lina Chen |
spellingShingle |
Meng Zhang Wenhui Yan Ye Yu Jie Cheng Xinyao Yi Tingli Guo Na Liu Jia Shang Zhuanzhuan Wang Hao Hu Lina Chen Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux Journal of Pharmacological Sciences Diabetes-associated cognitive dysfunction Liraglutide Autophagic flux Amyloid β |
author_facet |
Meng Zhang Wenhui Yan Ye Yu Jie Cheng Xinyao Yi Tingli Guo Na Liu Jia Shang Zhuanzhuan Wang Hao Hu Lina Chen |
author_sort |
Meng Zhang |
title |
Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux |
title_short |
Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux |
title_full |
Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux |
title_fullStr |
Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux |
title_full_unstemmed |
Liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux |
title_sort |
liraglutide ameliorates diabetes-associated cognitive dysfunction via rescuing autophagic flux |
publisher |
Elsevier |
series |
Journal of Pharmacological Sciences |
issn |
1347-8613 |
publishDate |
2021-11-01 |
description |
The incidence of diabetes–associated cognitive dysfunction is increasing. However, few clinical interventions are available to prevent the disorder. Several researches have shown that liraglutide, as a glucagon-like peptide-1 analog, has protective effects on various neurodegenerative diseases, but its roles in diabetic cognitive dysfunction are rarely reported. This study aims to investigate the protective effects of liraglutide on diabetic cognitive dysfunction and its underlying mechanisms. In vivo, the effects of liraglutide treatment were investigated in a mouse model of type 2 diabetes mellitus (T2DM). In vitro, we investigated the effects of liraglutide on the high-glucose-induced rat primary neurons. The results showed that liraglutide reduced the escape latency and increased the time in effective area in the Morris water maze test, improved the damage of hippocampal and synaptic ultrastructure, and decreased the accumulation of amyloid β protein in hippocampus of T2DM mice. Furthermore, liraglutide increased the ratio of microtubule-associated protein light 1 chain Ⅱ/Ⅰ, the expression of Beclin1 protein and Lysosome-associated membrane protein 2 in vivo and vitro. Additionally, Bafilomycin A1 which can inhibit the fusion of autophagosome and lysosome partially abolished the effects of liraglutide. These findings indicate liraglutide ameliorates diabetes-associated cognitive dysfunction by rescuing autophagic flux. |
topic |
Diabetes-associated cognitive dysfunction Liraglutide Autophagic flux Amyloid β |
url |
http://www.sciencedirect.com/science/article/pii/S1347861321000712 |
work_keys_str_mv |
AT mengzhang liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT wenhuiyan liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT yeyu liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT jiecheng liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT xinyaoyi liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT tingliguo liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT naliu liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT jiashang liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT zhuanzhuanwang liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT haohu liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux AT linachen liraglutideamelioratesdiabetesassociatedcognitivedysfunctionviarescuingautophagicflux |
_version_ |
1717761490506743808 |