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Fu F, Chen C, Du K, Li LS, Li R, Lei TY, Deng Q, Wang D, Yu QX, Yang X, Han J, Pan M, Zhen L, Zhang LN, Li J, Li FT, Zhang YL, Jing XY, Li FC, Li DZ, Liao C. Ndufa4 Regulates the Proliferation and Apoptosis of Neurons via miR-145a-5p/Homer1/Ccnd2. Mol Neurobiol 2023; 60:2986-3003. [PMID: 36763283 PMCID: PMC10122635 DOI: 10.1007/s12035-023-03239-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 01/09/2023] [Indexed: 02/11/2023]
Abstract
The Dandy-Walker malformation (DWM) is characterized by neuron dysregulation in embryonic development; however, the regulatory mechanisms associated with it are unclear. This study aimed to investigate the role of NADH dehydrogenase 1 alpha subcomplex 4 (NDUFA4) in regulating downstream signaling cascades and neuronal proliferation and apoptosis. Ndufa4 overexpression promoted the proliferation of neurons and inhibited their apoptosis in vitro, which underwent reverse regulation by the Ndufa4 short hairpin RNAs. Ndufa4-knockout (KO) mice showed abnormal histological alterations in the brain tissue, in addition to impaired spatial learning capacity and exploratory activity. Ndufa4 depletion altered the microRNA expressional profiles of the cerebellum: Ndufa4 inhibited miR-145a-5p expression both in the cerebellum and neurons. miR-145a-5p inhibited the proliferation of neurons and promoted their apoptosis. Ndufa4 promoted and miR-145a-5p inhibited the expression of human homer protein homolog 1 and cyclin D2 in neurons. Thus, Ndufa4 promotes the proliferation of neurons and inhibits their apoptosis by inhibiting miR-145a-5p, which directly targets and inhibits the untranslated regions of Homer1 and Ccnd2 expression.
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Affiliation(s)
- Fang Fu
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Chen Chen
- Department of Respirator, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Kun Du
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Lu-Shan Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Ru Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Ting-Ying Lei
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Qiong Deng
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Dan Wang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Qiu-Xia Yu
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Xin Yang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Jin Han
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Min Pan
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Li Zhen
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Li-Na Zhang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Jian Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Fa-Tao Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Yong-Ling Zhang
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Xiang-Yi Jing
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Fu-Cheng Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Dong-Zhi Li
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China
| | - Can Liao
- Department of Prenatal Diagnostic Centre, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 of Jinsui Road of Guangzhou, Guangzhou, 510623, Guangdong, China.
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Wu XQ, Su N, Fei Z, Fei F. Homer signaling pathways as effective therapeutic targets for ischemic and traumatic brain injuries and retinal lesions. Neural Regen Res 2021; 17:1454-1461. [PMID: 34916418 PMCID: PMC8771115 DOI: 10.4103/1673-5374.330588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Ischemic and traumatic insults to the central nervous system account for most serious acute and fatal brain injuries and are usually characterized by primary and secondary damage. Secondary damage presents the greatest challenge for medical staff; however, there are currently few effective therapeutic targets for secondary damage. Homer proteins are postsynaptic scaffolding proteins that have been implicated in ischemic and traumatic insults to the central nervous system. Homer signaling can exert either positive or negative effects during such insults, depending on the specific subtype of Homer protein. Homer 1b/c couples with other proteins to form postsynaptic densities, which form the basis of synaptic transmission, while Homer1a expression can be induced by harmful external factors. Homer 1c is used as a unique biomarker to reveal alterations in synaptic connectivity before and during the early stages of apoptosis in retinal ganglion cells, mediated or affected by extracellular or intracellular signaling or cytoskeletal processes. This review summarizes the structural features, related signaling pathways, and diverse roles of Homer proteins in physiological and pathological processes. Upregulating Homer1a or downregulating Homer1b/c may play a neuroprotective role in secondary brain injuries. Homer also plays an important role in the formation of photoreceptor synapses. These findings confirm the neuroprotective effects of Homer, and support the future design of therapeutic drug targets or gene therapies for ischemic and traumatic brain injuries and retinal disorders based on Homer proteins.
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Affiliation(s)
- Xiu-Quan Wu
- Department of Neurosurgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Ning Su
- Department of Radiation Oncology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Zhou Fei
- Department of Neurosurgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Fei Fei
- Department of Ophthalmology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi Province, China
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Negri S, Faris P, Moccia F. Reactive Oxygen Species and Endothelial Ca 2+ Signaling: Brothers in Arms or Partners in Crime? Int J Mol Sci 2021; 22:ijms22189821. [PMID: 34575985 PMCID: PMC8465413 DOI: 10.3390/ijms22189821] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 12/20/2022] Open
Abstract
An increase in intracellular Ca2+ concentration ([Ca2+]i) controls virtually all endothelial cell functions and is, therefore, crucial to maintain cardiovascular homeostasis. An aberrant elevation in endothelial can indeed lead to severe cardiovascular disorders. Likewise, moderate amounts of reactive oxygen species (ROS) induce intracellular Ca2+ signals to regulate vascular functions, while excessive ROS production may exploit dysregulated Ca2+ dynamics to induce endothelial injury. Herein, we survey how ROS induce endothelial Ca2+ signals to regulate vascular functions and, vice versa, how aberrant ROS generation may exploit the Ca2+ handling machinery to promote endothelial dysfunction. ROS elicit endothelial Ca2+ signals by regulating inositol-1,4,5-trisphosphate receptors, sarco-endoplasmic reticulum Ca2+-ATPase 2B, two-pore channels, store-operated Ca2+ entry (SOCE), and multiple isoforms of transient receptor potential (TRP) channels. ROS-induced endothelial Ca2+ signals regulate endothelial permeability, angiogenesis, and generation of vasorelaxing mediators and can be exploited to induce therapeutic angiogenesis, rescue neurovascular coupling, and induce cancer regression. However, an increase in endothelial [Ca2+]i induced by aberrant ROS formation may result in endothelial dysfunction, inflammatory diseases, metabolic disorders, and pulmonary artery hypertension. This information could pave the way to design alternative treatments to interfere with the life-threatening interconnection between endothelial ROS and Ca2+ signaling under multiple pathological conditions.
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Cui X, Liang H, Hao C, Jing X. Liraglutide preconditioning attenuates myocardial ischemia/ reperfusion injury via homer1 activation. Aging (Albany NY) 2021; 13:6625-6633. [PMID: 33535171 PMCID: PMC7993747 DOI: 10.18632/aging.202429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/11/2020] [Indexed: 05/27/2023]
Abstract
Myocardial infarction (MI) is one of most common cardiovascular diseases, and ischemia/reperfusion (I/R) injury is one of the risk factors for severe myocardial injury and dysfunction, even leading to high mortality of myocardial infarction. Liraglutide, a novel glucagon-like peptide 1 (GLP-1) analogue, has been reported to reduce cardiac rupture and infarct size and improve cardiac function in normal and diabetic rodents, however, the mechanisms of liraglutide on cardiomyocytes is not clear. The current research was designed to investigate the hypothesis that liraglutide would protect cardiomyocytes through regulating homer1 expression under hypoxia/reoxygenation (H/R) condition. The results of the present study indicated liraglutide reduced hypoxia-reoxygenation induced cell death and attenuated intracellular calcium overload in H9C2 cardiomyocytes under H/R condition. Moreover, liraglutide significantly increased the Homer1 protein expression, and this protection might be related to Homer1-dependent regulation of endoplasmic reticulum (ER) calcium homeostasis. Taken together, liraglutide protects H9C2 cell against H/R induced cell injury, and this protective effect may inhibit intracellular calcium overload to some extent, through Homer1-dependent regulation of ER calcium homeostasis.
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Affiliation(s)
- Xiangrong Cui
- Reproductive Medicine Center, Shanxi Maternal and Child Health Care Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China
| | - Hongping Liang
- Clinical Laboratory, Shanxi Provincial People’s Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China
| | - Chonghua Hao
- Clinical Laboratory, Shanxi Provincial People’s Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China
| | - Xuan Jing
- Clinical Laboratory, Shanxi Provincial People’s Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China
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Zhang Y, Li F, Liu L, Jiang H, Hu H, Du X, Ge X, Cao J, Wang Y. Salinomycin triggers endoplasmic reticulum stress through ATP2A3 upregulation in PC-3 cells. BMC Cancer 2019; 19:381. [PMID: 31023247 PMCID: PMC6482559 DOI: 10.1186/s12885-019-5590-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 04/09/2019] [Indexed: 02/06/2023] Open
Abstract
Background Salinomycin is a monocarboxylic polyether antibiotic and is a potential chemotherapy drug. Our previous studies showed that salinomycin inhibited cell growth and targeted CSCs in prostate cancer. However, the precise target of salinomycin action is unclear. Methods In this work, we analyzed and identified differentially expressed genes (DEGs) after treatment with or without salinomycin using a gene expression microarray in vitro (PC-3 cells) and in vivo (NOD/SCID mice xenograft model generated from implanted PC-3 cells). Western blotting and immunohistochemical staining were used to analyze the expression of ATP2A3 and endoplasmic reticulum (ER) stress biomarkers. Flow cytometry was used to analyze the cell cycle, apoptosis and intracellular Ca2+ concentration. Results A significantly upregulated gene, ATPase sarcoplasmatic/endoplasmatic reticulum Ca2+ transporting 3 (ATP2A3), was successfully identified. In subsequent studies, we found that ATP2A3 overexpression could trigger ER stress and exert anti-cancer effects in PC-3 and DU145 cells. ATP2A3 was slightly expressed, but the ER stress biomarkers showed strong staining in prostate cancer tissues. We also found that salinomycin could trigger ER stress, which might be related to ATP2A3-mediated Ca2+ release in PC-3 cells. Furthermore, we found that salinomycin-triggered ER stress could promote apoptosis and thus exert anti-cancer effects in prostate cancer cells. Conclusion This study demonstrates that ATP2A3 might be one of the potential targets for salinomycin, which can inhibit Ca2+ release and trigger ER stress to exert anti-cancer effects.
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Affiliation(s)
- Yunsheng Zhang
- Clinical Research Institute, The Second Affiliated Hospital, University of South China; Clinical Research Center For Breast & Thyroid Disease Prevention In Hunan Province, Hengyang, 421001, People's Republic of China
| | - Fang Li
- College of Nursing, Hunan Polytechnic of Environment and Biology, Hengyang, 421005, People's Republic of China
| | - Luogen Liu
- Clinical Research Institute, The Second Affiliated Hospital, University of South China, Hengyang, 421001, People's Republic of China
| | - Hongtao Jiang
- Department of Urology, The Second Hospital, University of South China, Hengyang, 421001, People's Republic of China
| | - Hua Hu
- Cancer Research Institute, The Second Hospital, University of South China, Hengyang, 421001, People's Republic of China
| | - Xiaobo Du
- Department of Urology, The First People's Hospital Yueyang, Yueyang, 414000, People's Republic of China
| | - Xin Ge
- Clinical Research Institute, The Second Affiliated Hospital, University of South China, Hengyang, 421001, People's Republic of China
| | - Jingsong Cao
- Medical College, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, 421001, People's Republic of China
| | - Yi Wang
- Department of Urology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570102; Clinical Research Institute, The Second Affiliated Hospital, University of South China, Hengyang, 421001, People's Republic of China.
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Yin D, Chen Y, Lu R, Fan B, Zhu S, Xu X, Xu Z. Translocation Associated Membrane Protein 1 Contributes to Chronic Constriction Injury-Induced Neuropathic Pain in the Dorsal Root Ganglion and Spinal Cord in Rats. J Mol Neurosci 2018; 66:535-546. [PMID: 30338452 DOI: 10.1007/s12031-018-1187-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 09/25/2018] [Indexed: 11/30/2022]
Abstract
Neuropathic pain is a severe debilitating state caused by injury or dysfunction of somatosensory nervous system, and the clinical treatment is still challenging. Translocation associated membrane protein 1 (TRAM1), an adapter protein, participates in a variety of transduction pathways and mediates the biological functions such as cell proliferation, activation, and differentiation. However, whether TRAM1 is involved in the pathogenesis of neuropathic pain is still unclear. In our study, we reported the role of TRAM1 in the maintenance of neuropathic pain induced by chronic constriction injury (CCI) on rats. By western blot and staining, we found that TRAM1 increased in the dorsal root ganglion (DRG) neurons and spinal cord (SC) neurons after CCI. Being similar to IB4-, CGRP-positive expressed area, TRAM1 also expressed in the superficial laminae of the spinal cord dorsal horn (SCDH), suggesting it was related to the innervations of the primary afferents. Moreover, intrathecal injection of TRAM1 siRNA or Toll-like receptor 4 (TLR4) inhibitor induced low expression of TRAM1 in SC, which alleviated the pain response induced by CCI. The upregulation of p-NF-κB expression was reversed by TRAM1 siRNA in SC and DRG, and intrathecal injection of p-NF-κB inhibitor relieved neuropathic pain. All the data indicated that TRAM1 could take part in CCI-induced pain and might be a potential treatment for chronic neuropathic pain.
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Affiliation(s)
- Dekun Yin
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, China
- Department of Anesthesiology, Funing People's Hospital of Jiangsu, Funing County, 224400, Jiangsu Province, China
| | - Yonglin Chen
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Rongxiang Lu
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Bingbing Fan
- Department of Radiology, Zhongshan Hospital and Shanghai Institute of Medical Imaging, Department of Medical Imaging, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Shunxing Zhu
- Laboratory Animal Center, Nantong University, Nantong, 226001, China
| | - Xingguo Xu
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, China.
| | - Zhongling Xu
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, China.
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