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MicroRNA-425-5p promotes tau phosphorylation and cell apoptosis in Alzheimer’s disease by targeting heat shock protein B8

  • Neurology and Preclinical Neurological Studies - Original Article
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Abstract

Alzheimer’s disease (AD) is the most prevalent and age-related dementia accompanied by neurodegenerative disorder, memory loss, and abnormal behaviors. Recent studies have shown an increasing interest in studying the role of microRNAs (miRNAs) and their potential values in the early diagnostics of AD. MiR-425-5p has extensively expression within various tissues and organs, acting as an important regulator in many pathological procedures. The functions of miR-425-5p involved in AD were investigated in the present study. The results showed that miR-425-5p was upregulated in patients with AD and HEK293/tau cells. Transfections with miR-425-5p overexpression vector significantly enhanced cell apoptosis, activated glycogen synthase kinase-3β (GSK-3β), and increased tau phosphorylation in HEK293/tau cells. Heat shock protein B8 (HSPB8) was directly targeted by miR-425-5p. Upregulation of miR-425-5p induced cell apoptosis and promoted tau phosphorylation partially via targeting HSPB8 in AD. Therefore, miR-425-5p might act as a new therapeutic target for AD treatment.

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Authors and Affiliations

  1. Qingdao Mental Health Center, No.299 Nanjing Road, Shibei District, 266000, Qingdao, Shandong Province, People’s Republic of China

    Jiao Yuan, Yanpeng Wu, Lu Li & Chuanqin Liu

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  1. Jiao Yuan
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  2. Yanpeng Wu
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  3. Lu Li
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  4. Chuanqin Liu
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by JY, YW, LL, and CL. The first draft of the manuscript was written by CL, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Chuanqin Liu.

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The authors declare that they have no conflict of interest.

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Ethical approval was obtained from the Ethics Committee of Qingdao Mental Health Center (No. QMHC2015021156673). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Yuan, J., Wu, Y., Li, L. et al. MicroRNA-425-5p promotes tau phosphorylation and cell apoptosis in Alzheimer’s disease by targeting heat shock protein B8. J Neural Transm 127, 339–346 (2020). https://doi.org/10.1007/s00702-019-02134-5

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  • DOI: https://doi.org/10.1007/s00702-019-02134-5

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