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MicroRNA-574 is involved in cognitive impairment in 5-month-old APP/PS1 mice through regulation of neuritin.
Brain Res 2015; 1627:177-88BR

Abstract

Alzheimer's disease (AD) is the most common form of dementia in the elderly. The recent evidence in AD research suggests that alterations in the microRNA (miRNA) could contribute to risk for the disease. However, little is understood about the roles of miRNAs in cognitive impairment of early Alzheimer's disease (AD). Here, we used 5-month-old APP/PS1 mice, which mimic many of the salient features of the early stage of AD pathological process, to further investigate the roles of miRNAs in synaptic loss involved in learning and memory. We used miRNA expression microarrays on RNA extracted from the hippocampus of 5-month-old APP/PS1 mice and wild type mice. Real-time reverse transcription PCR was conducted to verify the candidate miRNAs discovered by microarray analysis. The data showed that miR-574 was increased significantly in the hippocampus of 5-month-old APP/PS1 mice, which were concomitant with that APP/PS1 mice at the same age displayed a significant synaptic loss and cognitive deficits. Bioinformatic analysis predicted that neuritin (Nrn1) mRNA is targeted by miR-574. Overexpression of miR-574 lowers the levels of neuritin and synaptic proteins expression in primary hippocampal neurons damage induced by Aβ25-35. And the expression of miR-574 was also up-regulated in the hippocampal neurons from APP/PS1 mice compared with WT littermates. In contrast, suppression of miR-574 by miR-574 inhibitor significantly results in higher levels of neuritin and synaptic proteins expression. Taken together, miR-574 is involved in cognitive impairment in 5-month-old APP/PS1 mice through regulation of neuritin.

Authors+Show Affiliations

Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Research & Development of New Drugs, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.Department of Anatomy, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China. Electronic address: CDF27212@21cn.com.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26423933

Citation

Li, Fei, et al. "MicroRNA-574 Is Involved in Cognitive Impairment in 5-month-old APP/PS1 Mice Through Regulation of Neuritin." Brain Research, vol. 1627, 2015, pp. 177-88.
Li F, Wei G, Bai Y, et al. MicroRNA-574 is involved in cognitive impairment in 5-month-old APP/PS1 mice through regulation of neuritin. Brain Res. 2015;1627:177-88.
Li, F., Wei, G., Bai, Y., Li, Y., Huang, F., Lin, J., ... Chen, D. F. (2015). MicroRNA-574 is involved in cognitive impairment in 5-month-old APP/PS1 mice through regulation of neuritin. Brain Research, 1627, pp. 177-88. doi:10.1016/j.brainres.2015.09.022.
Li F, et al. MicroRNA-574 Is Involved in Cognitive Impairment in 5-month-old APP/PS1 Mice Through Regulation of Neuritin. Brain Res. 2015 Nov 19;1627:177-88. PubMed PMID: 26423933.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - MicroRNA-574 is involved in cognitive impairment in 5-month-old APP/PS1 mice through regulation of neuritin. AU - Li,Fei, AU - Wei,Gang, AU - Bai,Ye, AU - Li,Yunjun, AU - Huang,Fengyuan, AU - Lin,Jian, AU - Hou,Qiuke, AU - Deng,Rudong, AU - Zhou,Jian Hong, AU - Zhang,Sai Xia, AU - Chen,Dong Feng, Y1 - 2015/09/28/ PY - 2015/03/16/received PY - 2015/09/07/revised PY - 2015/09/19/accepted PY - 2015/10/2/entrez PY - 2015/10/2/pubmed PY - 2016/8/18/medline KW - 5-month-old APP/PS1mice KW - Cognitive impairment KW - Neuritin KW - Synapse KW - miR-574 SP - 177 EP - 88 JF - Brain research JO - Brain Res. VL - 1627 N2 - Alzheimer's disease (AD) is the most common form of dementia in the elderly. The recent evidence in AD research suggests that alterations in the microRNA (miRNA) could contribute to risk for the disease. However, little is understood about the roles of miRNAs in cognitive impairment of early Alzheimer's disease (AD). Here, we used 5-month-old APP/PS1 mice, which mimic many of the salient features of the early stage of AD pathological process, to further investigate the roles of miRNAs in synaptic loss involved in learning and memory. We used miRNA expression microarrays on RNA extracted from the hippocampus of 5-month-old APP/PS1 mice and wild type mice. Real-time reverse transcription PCR was conducted to verify the candidate miRNAs discovered by microarray analysis. The data showed that miR-574 was increased significantly in the hippocampus of 5-month-old APP/PS1 mice, which were concomitant with that APP/PS1 mice at the same age displayed a significant synaptic loss and cognitive deficits. Bioinformatic analysis predicted that neuritin (Nrn1) mRNA is targeted by miR-574. Overexpression of miR-574 lowers the levels of neuritin and synaptic proteins expression in primary hippocampal neurons damage induced by Aβ25-35. And the expression of miR-574 was also up-regulated in the hippocampal neurons from APP/PS1 mice compared with WT littermates. In contrast, suppression of miR-574 by miR-574 inhibitor significantly results in higher levels of neuritin and synaptic proteins expression. Taken together, miR-574 is involved in cognitive impairment in 5-month-old APP/PS1 mice through regulation of neuritin. SN - 1872-6240 UR - https://www.unboundmedicine.com/medline/citation/26423933/MicroRNA_574_is_involved_in_cognitive_impairment_in_5_month_old_APP/PS1_mice_through_regulation_of_neuritin_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0006-8993(15)00720-9 DB - PRIME DP - Unbound Medicine ER -