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Peng Y, Jia J, Zhang M, Ma W, Cui Y, Yu M. Transcription Factor TFAP2B Exerts Neuroprotective Effects Targeting BNIP3-Mediated Mitophagy in Ischemia/Reperfusion Injury. Mol Neurobiol 2024; 61:7319-7334. [PMID: 38381297 DOI: 10.1007/s12035-024-04004-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 01/30/2024] [Indexed: 02/22/2024]
Abstract
Cerebral ischemia-reperfusion injury (CIRI) leads to malignant brain edema, blood-brain barrier destruction, and neuronal apoptosis. N6-methyladenosine (m6A) RNA modification in CIRI was still limited explored. In this study, MeRIP- and RNA-sequencing were performed of middle cerebral artery occlusion and reperfusion (MCAO/R) rats to find novel potential molecular targets. Transcription factor TFAP2B stood out of which its m6A abundance decreased associated with a marked reduction of its mRNA based on cojoint interactive bioinformatics analysis of the MeRIP- and RNA-sequencing data. It was suggested TFAP2B could have a role in CIRI. Functionally, overexpression of TFAP2B in cultured primary neurons could effectively improve the cell survival and pro-survival autophagy in parallel with reduced cell apoptosis during OGD/R in vitro. Through the RNA-sequencing of TFAP2B overexpressed primary neurons and subsequent validation experiments, it was found that mitophagy receptor BNIP3 was one of the important targets of TFAP2B in OGD/R neurons through which TFAP2B could bind to its promoter region for transcriptional activation of BNIP3, thereby enhancing BNIP3-mediated mitophagy to protect against OGD/R injury of neurons. Lastly, TFAP2B was demonstrated to alleviate the MCAO/R damage to a certain extent in vivo. Although it failed to confirm TFAP2B dysregulation was m6A dependent in current research, this is the first research of TFAP2B in CIRI field with important guiding significance.
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Affiliation(s)
- Yong Peng
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Jiaoying Jia
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Mingming Zhang
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Wenjia Ma
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Yan Cui
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Mengqiang Yu
- Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China.
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Qiao ZZ, Zang MX, Zhang Y, Wang P, Li XY, Song X, Zhang CJ, Klinger FG, Ge W, Shen W, Cheng SF. LH promotes the proliferation of porcine primordial germ cell-like cells (pPGCLCs) by regulating the ceRNA network related to the TGF-β signaling pathway. Int J Biol Macromol 2024; 280:135984. [PMID: 39326611 DOI: 10.1016/j.ijbiomac.2024.135984] [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: 05/26/2024] [Revised: 08/23/2024] [Accepted: 09/22/2024] [Indexed: 09/28/2024]
Abstract
Primordial germ cells (PGCs), as the precursors of gametes found in early embryos, provide a new direction for solving the problem of reproductive disorders. In vitro, conversion of adult stem cells (ASCs) into primordial germ cell-like cells (PGCLCs) is feasible. The means of increasing PGCLCs number in vitro has been a focus of recent stem cell research. In this study, we found that luteinizing hormone (LH) could promote porcine PGCLCs (pPGCLCs) proliferation. To investigate the proliferation regulatory network, whole transcriptome sequencing technology was employed. Results showed that the TGF-β signaling pathway played a key role. In addition, we found that TGFβR1 and SMAD4, TGF-β signaling pathway-related genes, were significantly upregulated after LH treatment. Subsequently, we predicted their target microRNAs (miRNAs) and long non-coding RNAs (lncRNAs): ssc-miR-128, ssc-miR-146b, ssc-miR-361-3p, MSTRG.11473, MSTRG.11475, MSTRG.11553, and MSTRG.11554, and constructed the competitive endogenous RNAs (ceRNA) network. Finally, to further verify the ceRNA network, the miRNA-inhibitors were transfected into cells. RT-qPCR results indicated a significant increase in the expression of MSTRG.11473, MSTRG.11475, MSTRG.11553, MSTRG.11554, TGFβR1, and SMAD4 compared to the negative control (NC) group. In conclusion, these results highlight that LH could regulate the pPGCLCs proliferation by modulating the expression of TGF-β signaling pathway-related ncRNAs.
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Affiliation(s)
- Zhan-Zhong Qiao
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ming-Xin Zang
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ying Zhang
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ping Wang
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiao-Ya Li
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xin Song
- Jinxiang County Agriculture and Rural Bureau, Jining 272200, China
| | - Chun-Jie Zhang
- Wudi Animal Husbandry and Veterinary Service Management Center of Binzhou City, Binzhou 256600, China
| | | | - Wei Ge
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Wei Shen
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Shun-Feng Cheng
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China.
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Mao J, Zhao Q, Guo M, Zhang S, Zhou J. Connecting the dots: Involvement of methyltransferase-like 3, N6-methyladenosine modification, and ferroptosis in the pathogenesis of intracerebral hemorrhage pathogenesis. Exp Neurol 2024; 382:114948. [PMID: 39260591 DOI: 10.1016/j.expneurol.2024.114948] [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: 05/29/2024] [Revised: 08/15/2024] [Accepted: 09/09/2024] [Indexed: 09/13/2024]
Abstract
Intracerebral hemorrhage is a profoundly detrimental acute cerebrovascular condition with a low overall survival rate and a high post-onset disability rate. Secondary brain injury that ensues post-ICH is the primary contributor to fatality and disability. Hence, the mitigation of brain injury during intracerebral hemorrhage progression has emerged as a crucial aspect of clinical management. N6-methyladenosine is the most pervasive, abundant, and conserved internal co-transcriptional modification of eukaryotic ribonucleic acid and is predominantly expressed in the nervous system. Methyltransferase-like 3 is a key regulatory protein that is strongly associated with the development of the nervous system and numerous neurological diseases. Ferroptosis, a form of iron-associated cell death, is a typical manifestation of neuronal apoptosis in neurological diseases and plays an important role in secondary brain damage following intracerebral hemorrhage. Therefore, this review aimed to elucidate the connection between m6A modification (particularly methyltransferase-like 3) and ferroptosis in the context of intracerebral hemorrhage to provide new insights for future intracerebral hemorrhage management approaches.
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Affiliation(s)
- Junxiang Mao
- The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou City, Gansu Province, China
| | - Quantang Zhao
- Department of Neurosurgery, The Chinese People's Liberation Army Joint Logistics Support Force, No. 940 Hospital, Lanzhou City, Gansu Province, China
| | - Man Guo
- Department of Neurosurgery, The Chinese People's Liberation Army Joint Logistics Support Force, No. 940 Hospital, Lanzhou City, Gansu Province, China
| | - Shenghao Zhang
- Department of Neurosurgery, The Chinese People's Liberation Army Joint Logistics Support Force, No. 940 Hospital, Lanzhou City, Gansu Province, China
| | - Jie Zhou
- The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou City, Gansu Province, China.
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4
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Liang JF, Qin XD, Huang XH, Fan ZP, Zhi YY, Xu JW, Chen F, Pan ZL, Chen YF, Zheng CB, Lu J. Glycyrrhetinic acid triggers a protective autophagy by inhibiting the JAK2/STAT3 pathway in cerebral ischemia/reperfusion injury. Neuroscience 2024; 554:96-106. [PMID: 38964451 DOI: 10.1016/j.neuroscience.2024.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 06/03/2024] [Accepted: 06/23/2024] [Indexed: 07/06/2024]
Abstract
Cerebral ischemia/reperfusion injury (CIRI) is a common feature of ischemic stroke leading to a poor prognosis. Effective treatments targeting I/R injury are still insufficient. The study aimed to investigate the mechanisms, by which glycyrrhizic acid (18β-GA) in ameliorates CIRI. Our results showed that 18β-GA significantly decreased the infarct volume, neurological deficit scores, and pathological changes in the brain tissue of rats after middle cerebral artery occlusion. Western blotting showed that 18β-GA inhibited the expression levels of phosphorylated JAK2 and phosphorylated STAT3. Meanwhile, 18β-GA increased LC3-II protein levels in a reperfusion duration-dependent manner, which was accompanied by an increase in the Bcl-2/Bax ratio. Inhibition of 18β-GA-induced autophagy by 3-methyladenine (3-MA) enhanced apoptotic cell death. In addition, 18β-GA inhibited the JAK2/STAT3 pathway, which was largely activated in response to oxygen-glucose deprivation/reoxygenation. However, the JAK2/STAT3 activator colivelin TFA abolished the inhibitory effect of 18β-GA, suppressed autophagy, and significantly decreased the Bcl-2/Bax ratio. Taken together, these findings suggested that 18β-GA pretreatment ameliorated CIRI partly by triggering a protective autophagy via the JAK2/STAT3 pathway. Therefore might be a potential drug candidate for treating ischemic stroke.
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Affiliation(s)
- Jian-Feng Liang
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China; Lushan Rehabilitation and Recuperation Center, Jiujiang 332000, China
| | - Xiao-Dan Qin
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China; The First Affiliated Hospital of Traditional Chinese Medicine of Guangzhou University, Ghuangzhou 510405, China
| | - Xue-Hong Huang
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Zi-Ping Fan
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Yong-Ying Zhi
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Jia-Wei Xu
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Fangmei Chen
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Zhi-Li Pan
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Yi-Fei Chen
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China
| | - Chang-Bo Zheng
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China; School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Jun Lu
- Guangxi Key Laboratory of Drug Discovery and Optimization, School of Pharmacy, Guilin Medical University, Guilin 541199, China.
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Zhou X, Lv Y, Xie H, Li Y, Liu C, Zheng M, Wu R, Zhou S, Gu X, Li J, Mi D. RNA sequencing of exosomes secreted by fibroblast and Schwann cells elucidates mechanisms underlying peripheral nerve regeneration. Neural Regen Res 2024; 19:1812-1821. [PMID: 38103248 PMCID: PMC10960293 DOI: 10.4103/1673-5374.387980] [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: 06/30/2023] [Revised: 08/10/2023] [Accepted: 09/06/2023] [Indexed: 12/18/2023] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202408000-00035/figure1/v/2023-12-16T180322Z/r/image-tiff Exosomes exhibit complex biological functions and mediate a variety of biological processes, such as promoting axonal regeneration and functional recovery after injury. Long non-coding RNAs (lncRNAs) have been reported to play a crucial role in axonal regeneration. However, the role of the lncRNA-microRNA-messenger RNA (mRNA)-competitive endogenous RNA (ceRNA) network in exosome-mediated axonal regeneration remains unclear. In this study, we performed RNA transcriptome sequencing analysis to assess mRNA expression patterns in exosomes produced by cultured fibroblasts (FC-EXOs) and Schwann cells (SC-EXOs). Differential gene expression analysis, Gene Ontology analysis, Kyoto Encyclopedia of Genes and Genomes analysis, and protein-protein interaction network analysis were used to explore the functions and related pathways of RNAs isolated from FC-EXOs and SC-EXOs. We found that the ribosome-related central gene Rps5 was enriched in FC-EXOs and SC-EXOs, which suggests that it may promote axonal regeneration. In addition, using the miRWalk and Starbase prediction databases, we constructed a regulatory network of ceRNAs targeting Rps5, including 27 microRNAs and five lncRNAs. The ceRNA regulatory network, which included Ftx and Miat, revealed that exsosome-derived Rps5 inhibits scar formation and promotes axonal regeneration and functional recovery after nerve injury. Our findings suggest that exosomes derived from fibroblast and Schwann cells could be used to treat injuries of peripheral nervous system.
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Affiliation(s)
- Xinyang Zhou
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu Province, China
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Yehua Lv
- Department of Orthopedic, Nantong Traditional Chinese Medicine Hospital, Nantong, Jiangsu Province, China
| | - Huimin Xie
- Nantong Stomatological Hospital Affiliated to Nantong University, Nantong, Jiangsu Province, China
| | - Yan Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Chang Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Mengru Zheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Ronghua Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Songlin Zhou
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xiaosong Gu
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu Province, China
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jingjing Li
- Department of General Practice, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Daguo Mi
- Department of Orthopedic, Nantong Traditional Chinese Medicine Hospital, Nantong, Jiangsu Province, China
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Gu Y, Xu M, Wu W, Ma Z, Liu W. Identification of N6-Methyladenosine-Associated lncRNAs and Analysis of Prognostic Signature in Breast Cancer. Biochem Genet 2024:10.1007/s10528-024-10889-0. [PMID: 39042347 DOI: 10.1007/s10528-024-10889-0] [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: 05/06/2024] [Accepted: 07/16/2024] [Indexed: 07/24/2024]
Abstract
Breast cancer represents the predominant malignant neoplasm in women, posing significant threats to both life and health. N6-methyladenosine (m6A) methylation, the most prevalent RNA modification, plays a crucial role in cancer development. This study aims to delineate the prognostic implications of m6A-associated long non-coding RNAs (m6AlncRNAs) and identify potential m6AlncRNA candidates as novel therapeutic targets for breast cancer. Through univariate Cox, Least Absolute Shrinkage and Selection Operator and multiple Cox regression analysis, m6AlncRNA was analyzed and a risk-prognosis model was constructed. Kaplan-Meier analysis, principal component analysis and nomogram were used to evaluate the risk model. Finally, we screened candidate lncRNAs and validated them in breast cancer cell lines. m6AlncRNAs were stratified into three subtypes, and their associations with survival outcomes and immune infiltrating capacities were systematically analyzed. Subsequently, breast cancer patients were stratified into high and low-risk groups based on median risk scores, revealing distinct clinical characteristics, tumor immunoinvasive profiles, tumor mutation burden, and survival probabilities. Additionally, a prognostic model was established, highlighting three promising candidate lncRNAs: ECE1-AS1, NDUFA6-DT, and COL4A2-AS1. This study investigated the prognostic implications of m6A-associated long non-coding RNAs (m6AlncRNAs) and developed a prognostic risk model to identify three potential m6AlncRNA candidates. These findings provide valuable insights into the potential application of these m6AlncRNAs in guiding immunotherapeutic strategies for breast cancer.
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Affiliation(s)
- Yun Gu
- Department of Pathology, Nanjing Women and Children's Healthcare Hospital, Women's Hospital of Nanjing Medical University, Tianfei Road 123th, Nanjing, 210004, Jiangsu, China
| | - Min Xu
- Department of Pathology, Nanjing Women and Children's Healthcare Hospital, Women's Hospital of Nanjing Medical University, Tianfei Road 123th, Nanjing, 210004, Jiangsu, China
| | - Wangfei Wu
- Department of Pathology, Nanjing Women and Children's Healthcare Hospital, Women's Hospital of Nanjing Medical University, Tianfei Road 123th, Nanjing, 210004, Jiangsu, China
| | - Zhifang Ma
- Department of Pathology, Nanjing Women and Children's Healthcare Hospital, Women's Hospital of Nanjing Medical University, Tianfei Road 123th, Nanjing, 210004, Jiangsu, China.
| | - Weiguang Liu
- Department of Molecular and Cellular Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, 77030, USA.
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Wang Z, Huang C, Shi Z, Liu H, Han X, Chen Z, Li S, Wang Z, Huang J. A taurine-based hydrogel with the neuroprotective effect and the ability to promote neural stem cell proliferation. BIOMATERIALS ADVANCES 2024; 161:213895. [PMID: 38795474 DOI: 10.1016/j.bioadv.2024.213895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 05/28/2024]
Abstract
Ischemic stroke, a cerebrovascular disease caused by arterial occlusion in the brain, can lead to brain impairment and even death. Stem cell therapies have shown positive advantages to treat ischemic stroke because of their extended time window, but the cell viability is poor when transplanted into the brain directly. Therefore, a new hydrogel GelMA-T was developed by introducing taurine on GelMA to transplant neural stem cells. The GelMA-T displayed the desired photocuring ability, micropore structure, and cytocompatibility. Its compressive modulus was more similar to neural tissue compared to that of GelMA. The GelMA-T could protect SH-SY5Y cells from injury induced by OGD/R. Furthermore, the NE-4C cells showed better proliferation performance in GelMA-T than that in GelMA during both 2D and 3D cultures. All results demonstrate that GelMA-T possesses a neuroprotective effect for ischemia/reperfusion injury against ischemic stroke and plays a positive role in promoting NSC proliferation. The novel hydrogel is anticipated to function as cell vehicles for the transplantation of neural stem cells into the stroke cavity, aiming to treat ischemic stroke.
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Affiliation(s)
- Zhichao Wang
- Centre for Advanced Jet Engineering Technology (CaJET), Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Experimental Teaching Demonstration Center for Mechanical Engineering (Shandong University), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Chuanzhen Huang
- School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China.
| | - Zhenyu Shi
- School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Hanlian Liu
- Centre for Advanced Jet Engineering Technology (CaJET), Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Experimental Teaching Demonstration Center for Mechanical Engineering (Shandong University), School of Mechanical Engineering, Shandong University, Jinan 250061, China.
| | - Xu Han
- Centre for Advanced Jet Engineering Technology (CaJET), Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Experimental Teaching Demonstration Center for Mechanical Engineering (Shandong University), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Zhuang Chen
- Centre for Advanced Jet Engineering Technology (CaJET), Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Experimental Teaching Demonstration Center for Mechanical Engineering (Shandong University), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Shuying Li
- Centre for Advanced Jet Engineering Technology (CaJET), Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Experimental Teaching Demonstration Center for Mechanical Engineering (Shandong University), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Zhen Wang
- School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Jun Huang
- Centre for Advanced Jet Engineering Technology (CaJET), Key Laboratory of High-efficiency and Clean Mechanical Manufacture (Ministry of Education), National Experimental Teaching Demonstration Center for Mechanical Engineering (Shandong University), School of Mechanical Engineering, Shandong University, Jinan 250061, China
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Lu J, Li H, Yu Z, Cao C, Xu Z, Peng L, Zhang JH, Chen G. Cathepsin B as a key regulator of ferroptosis in microglia following intracerebral hemorrhage. Neurobiol Dis 2024; 194:106468. [PMID: 38460801 DOI: 10.1016/j.nbd.2024.106468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024] Open
Abstract
Intracerebral hemorrhage (ICH) is a subtype of stroke marked by elevated mortality and disability rates. Recently, mounting evidence suggests a significant role of ferroptosis in the pathogenesis of ICH. Through a combination of bioinformatics analysis and basic experiments, our goal is to identify the primary cell types and key molecules implicated in ferroptosis post-ICH. This aims to propel the advancement of ferroptosis research, offering potential therapeutic targets for ICH treatment. Our study reveals pronounced ferroptosis in microglia and identifies the target gene, cathepsin B (Ctsb), by analyzing differentially expressed genes following ICH. Ctsb, a cysteine protease primarily located in lysosomes, becomes a focal point in our investigation. Utilizing in vitro and in vivo models, we explore the correlation between Ctsb and ferroptosis in microglia post-ICH. Results demonstrate that ICH and hemin-induced ferroptosis in microglia coincide with elevated levels and activity of Ctsb protein. Effective alleviation of ferroptosis in microglia after ICH is achieved through the inhibition of Ctsb protease activity and protein levels using inhibitors and shRNA. Additionally, a notable increase in m6A methylation levels of Ctsb mRNA post-ICH is observed, suggesting a pivotal role of m6A methylation in regulating Ctsb translation. These research insights deepen our comprehension of the molecular pathways involved in ferroptosis after ICH, underscoring the potential of Ctsb as a promising target for mitigating brain damage resulting from ICH.
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Affiliation(s)
- Jinxin Lu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China
| | - Zhengquan Yu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China.
| | - Chang Cao
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China
| | - Zhongmou Xu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China
| | - Lu Peng
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China
| | - John H Zhang
- Departments of Neurosurgery, Anesthesiology, Physiology and Pharmacology, Pathology and Human Anatomy, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou 215006, China; Institute of Stroke Research, Soochow University, Suzhou 215006, China.
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9
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Bi HE, Zhang J, Yao Y, Wang S, Yao J, Shao Z, Jiang Q. Expression and functional significance of phosphoenolpyruvate carboxykinase 1 in uveal melanoma. Cell Death Discov 2024; 10:196. [PMID: 38670942 PMCID: PMC11053060 DOI: 10.1038/s41420-024-01963-y] [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: 01/28/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Uveal melanoma (UVM), an uncommon yet potentially life-threatening ocular cancer, arises from melanocytes in the uveal tract of the eye. The exploration of novel oncotargets for UVM is of paramount importance. In this study, we show that PCK1 (phosphoenolpyruvate carboxykinase 1) expression is upregulated in various UVM tissues as well as in primary UVM cells and immortalized lines. Furthermore, bioinformatics studies reveal that PCK1 overexpression in UVM correlates with advanced disease stages and poor patient survival. Genetic silencing (utilizing viral shRNA) or knockout (via CRISPR/Cas9) of PCK1 significantly curtailed cell viability, proliferation, cell cycle progression, and motility, while provoking apoptosis in primary and immortalized UVM cells. Conversely, ectopic overexpression of PCK1, achieved through a viral construct, bolstered UVM cell proliferation and migration. Gαi3 expression and Akt phosphorylation were reduced following PCK1 silencing or knockout, but increased after PCK1 overexpression in UVM cells. Restoring Akt phosphorylation through a constitutively active mutant Akt1 (S473D) ameliorated the growth inhibition, migration suppression, and apoptosis induced by PCK1 silencing in UVM cells. Additionally, ectopic expression of Gαi3 restored Akt activation and counteracted the anti-UVM cell effects by PCK1 silencing. In vivo, the growth of subcutaneous xenografts of primary human UVM cells was significantly inhibited following intratumoral injection of adeno-associated virus (aav) expressing PCK1 shRNA. PCK1 depletion, Gαi3 downregulation, Akt inhibition, proliferation arrest, and apoptosis were detected in PCK1-silenced UVM xenografts. Collectively, our findings demonstrate that PCK1 promotes UVM cell growth possibly by modulating the Gαi3-Akt signaling pathway.
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Affiliation(s)
- Hui-E Bi
- The Affiliated Eye Hospital, The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
- Department of Ophthalmology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Jie Zhang
- Obstetrics and Gynecology Department, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Yujia Yao
- The Affiliated Eye Hospital, The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Suyu Wang
- The Affiliated Eye Hospital, The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Jin Yao
- The Affiliated Eye Hospital, The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China.
| | - Zhijiang Shao
- Department of Ophthalmology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China.
| | - Qin Jiang
- The Affiliated Eye Hospital, The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China.
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10
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Han J, Wang C, Yang H, Luo J, Zhang X, Zhang XA. Novel Insights into the Links between N6-Methyladenosine and Regulated Cell Death in Musculoskeletal Diseases. Biomolecules 2024; 14:514. [PMID: 38785921 PMCID: PMC11117795 DOI: 10.3390/biom14050514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/18/2024] [Accepted: 04/21/2024] [Indexed: 05/25/2024] Open
Abstract
Musculoskeletal diseases (MSDs), including osteoarthritis (OA), osteosarcoma (OS), multiple myeloma (MM), intervertebral disc degeneration (IDD), osteoporosis (OP), and rheumatoid arthritis (RA), present noteworthy obstacles associated with pain, disability, and impaired quality of life on a global scale. In recent years, it has become increasingly apparent that N6-methyladenosine (m6A) is a key regulator in the expression of genes in a multitude of biological processes. m6A is composed of 0.1-0.4% adenylate residues, especially at the beginning of 3'-UTR near the translation stop codon. The m6A regulator can be classified into three types, namely the "writer", "reader", and "eraser". Studies have shown that the epigenetic modulation of m6A influences mRNA processing, nuclear export, translation, and splicing. Regulated cell death (RCD) is the autonomous and orderly death of cells under genetic control to maintain the stability of the internal environment. Moreover, distorted RCDs are widely used to influence the course of various diseases and receiving increasing attention from researchers. In the past few years, increasing evidence has indicated that m6A can regulate gene expression and thus influence different RCD processes, which has a central role in the etiology and evolution of MSDs. The RCDs currently confirmed to be associated with m6A are autophagy-dependent cell death, apoptosis, necroptosis, pyroptosis, ferroptosis, immunogenic cell death, NETotic cell death and oxeiptosis. The m6A-RCD axis can regulate the inflammatory response in chondrocytes and the invasive and migratory of MM cells to bone remodeling capacity, thereby influencing the development of MSDs. This review gives a complete overview of the regulatory functions on the m6A-RCD axis across muscle, bone, and cartilage. In addition, we also discuss recent advances in the control of RCD by m6A-targeted factors and explore the clinical application prospects of therapies targeting the m6A-RCD in MSD prevention and treatment. These may provide new ideas and directions for understanding the pathophysiological mechanism of MSDs and the clinical prevention and treatment of these diseases.
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Affiliation(s)
- Juanjuan Han
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China; (J.H.); (C.W.)
| | - Cuijing Wang
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China; (J.H.); (C.W.)
| | - Haolin Yang
- College of Pharmacy, Jilin University, Changchun 132000, China;
| | - Jiayi Luo
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China; (J.H.); (C.W.)
| | - Xiaoyi Zhang
- College of Second Clinical Medical, China Medical University, Shenyang 110100, China;
| | - Xin-An Zhang
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China; (J.H.); (C.W.)
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11
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Gao Y, Wang M, Qin R, Zhao C, Gong J. METTL3 Deficiency Aggravates Hepatic Ischemia/Reperfusion Injury in Mice by Activating the MAPK Signaling Pathway. Int J Med Sci 2024; 21:1037-1048. [PMID: 38774758 PMCID: PMC11103385 DOI: 10.7150/ijms.94177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/05/2024] [Indexed: 05/24/2024] Open
Abstract
Background: Inflammatory responses, apoptosis, and oxidative stress, are key factors that contribute to hepatic ischemia/reperfusion (I/R) injury, which may lead to the failure of liver surgeries, such as hepatectomy and liver transplantation. The N6-methyladenosine (m6A) modification has been implicated in multiple biological processes, and its specific role and mechanism in hepatic I/R injury require further investigation. Methods: Dot blotting analysis was used to profile m6A levels in liver tissues at different reperfusion time points in hepatic I/R mouse models. Hepatocyte-specific METTL3 knockdown (HKD) mice were used to determine the function of METTL3 during hepatic I/R. RNA sequencing and western blotting were performed to assess the potential signaling pathways involved with the deficiency of METTL3. Finally, AAV8-TBG-METTL3 was injected through the tail vein to further elucidate the role of METTL3 in hepatic I/R injury. Results: The m6A modification levels and the expression of METTL3 were upregulated in mouse livers during hepatic I/R injury. METTL3 deficiency led to an exacerbated inflammatory response and increased cell death during hepatic I/R, whereas overexpression of METTL3 reduced the extent of liver injury. Bioinformatic analysis revealed that the MAPK pathway was significantly enriched in the livers of METTL3-deficient mice. METTL3 protected the liver from I/R injury, possibly by inhibiting the phosphorylation of JNK and ERK, but not P38. Conclusions: METTL3 deficiency aggravates hepatic I/R injury in mice by activating the MAPK signaling pathway. METTL3 may be a potential therapeutic target in hepatic I/R injury.
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Affiliation(s)
- Yang Gao
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China
| | - Min Wang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China
| | - Renyi Qin
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China
| | - Chunle Zhao
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China
| | - Jun Gong
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China
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12
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Wu Y, Sun J, Lin Q, Wang D, Hai J. Sustained release of vascular endothelial growth factor A and basic fibroblast growth factor from nanofiber membranes reduces oxygen/glucose deprivation-induced injury to neurovascular units. Neural Regen Res 2024; 19:887-894. [PMID: 37843225 PMCID: PMC10664103 DOI: 10.4103/1673-5374.382252] [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: 11/16/2022] [Revised: 04/12/2023] [Accepted: 06/16/2023] [Indexed: 10/17/2023] Open
Abstract
Upregulation of vascular endothelial growth factor A/basic fibroblast growth factor (VEGFA/bFGF) expression in the penumbra of cerebral ischemia can increase vascular volume, reduce lesion volume, and enhance neural cell proliferation and differentiation, thereby exerting neuroprotective effects. However, the beneficial effects of endogenous VEGFA/bFGF are limited as their expression is only transiently increased. In this study, we generated multilayered nanofiber membranes loaded with VEGFA/bFGF using layer-by-layer self-assembly and electrospinning techniques. We found that a membrane containing 10 layers had an ideal ultrastructure and could efficiently and stably release growth factors for more than 1 month. This 10-layered nanofiber membrane promoted brain microvascular endothelial cell tube formation and proliferation, inhibited neuronal apoptosis, upregulated the expression of tight junction proteins, and improved the viability of various cellular components of neurovascular units under conditions of oxygen/glucose deprivation. Furthermore, this nanofiber membrane decreased the expression of Janus kinase-2/signal transducer and activator of transcription-3 (JAK2/STAT3), Bax/Bcl-2, and cleaved caspase-3. Therefore, this nanofiber membrane exhibits a neuroprotective effect on oxygen/glucose-deprived neurovascular units by inhibiting the JAK2/STAT3 pathway.
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Affiliation(s)
- Yifang Wu
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jun Sun
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qi Lin
- Department of Pharmacy, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dapeng Wang
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jian Hai
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
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13
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Han F. N6-methyladenosine modification in ischemic stroke: Functions, regulation, and therapeutic potential. Heliyon 2024; 10:e25192. [PMID: 38317953 PMCID: PMC10840115 DOI: 10.1016/j.heliyon.2024.e25192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/09/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
N6-methyladenosine (m6A) modification is the most frequently occurring internal modification in eukaryotic RNAs. By modulating various aspects of the RNA life cycle, it has been implicated in a wide range of pathological and physiological processes associated with human diseases. Ischemic stroke is a major cause of death and disability worldwide with few treatment options and a narrow therapeutic window, and accumulating evidence has indicated the involvement of m6A modifications in the development and progression of this type of stroke. In this review, which provides insights for the prevention and clinical treatment of stroke, we present an overview of the roles played by m6A modification in ischemic stroke from three main perspectives: (1) the association of m6A modification with established risk factors for stroke, including hypertension, diabetes mellitus, hyperlipidemia, obesity, and heart disease; (2) the roles of m6A modification regulators and their functional regulation in the pathophysiological injury mechanisms of stroke, namely oxidative stress, mitochondrial dysfunction, endothelial dysfunction, neuroinflammation, and cell death processes; and (3) the diagnostic and therapeutic potential of m6A regulators in the treatment of stroke.
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Affiliation(s)
- Fei Han
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
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14
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Zhao L, Song D, Li T, Li Y, Dang M, Hao Q, Fan H, Lu Z, Lu J, Heyingwang, Wang X, Jian Y, Zhang G. Identification of significant m6A regulators and immune microenvironment characterization in ischemic stroke. Sci Rep 2024; 14:3456. [PMID: 38342932 PMCID: PMC10859379 DOI: 10.1038/s41598-024-53788-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 02/05/2024] [Indexed: 02/13/2024] Open
Abstract
The role of m6A modification in the regulation of the immune microenvironment (IME) of ischemic stroke (IS) is barely known. Thus, we aim to investigate the impact of m6A modification on the IME of IS and its diagnostic value in IS. We comprehensively assessed the m6A modification patterns, the relationship between these modification patterns and the characteristics of the IME. The m6A modification patterns of individual IS sample were quantified by m6Ascore. The performance of m6A phenotype-related genes as potential biomarkers was evaluated by the area under the receiver operating characteristic curve. Experimental validation was also performed by qRT-PCR. Six dysregulated m6A regulators were identified and a classification model consisting of four key m6A regulators (METLL3, RBMX, RBM15B, YTDHF3) could distinguish IS and healthy control samples well. METTL3 and YTHDF3 are closely related to circulating neutrophil abundance. Two distinct m6A modification patterns were determined which differed in immunocyte abundance. We also identified six m6A phenotype-related genes (APOBEC3A, PTMA, FCGR3A, LOC440926, LOC649946, and FTH1L11), and further explored their biological function. Among them, APOBEC3A, FCGR3A, and FTH1L11 were positively associated with neutrophil abundance. APOBEC3A and FCGR3A were stable diagnostic m6A-associated genes in both the discovery and validation cohorts. This study reveals that m6A modification plays a non-negligible role in the formation of a diversified and complex IME in IS. The m6A phenotype-related genes could be diagnostic biomarkers of IS.
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Affiliation(s)
- Lili Zhao
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Dingli Song
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tao Li
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Ye Li
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Meijuan Dang
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Qian Hao
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China
| | - Hong Fan
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Ziwei Lu
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Jialiang Lu
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Heyingwang
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Xiaoya Wang
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Yating Jian
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China
| | - Guilian Zhang
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwulu, Xi'an, 710004, China.
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15
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Hu J, Duan H, Zou J, Ding W, Wei Z, Peng Q, Li Z, Duan R, Sun J, Zhu J. METTL3-dependent N6-methyladenosine modification is involved in berberine-mediated neuroprotection in ischemic stroke by enhancing the stability of NEAT1 in astrocytes. Aging (Albany NY) 2024; 16:299-321. [PMID: 38180752 PMCID: PMC10817396 DOI: 10.18632/aging.205369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/16/2023] [Indexed: 01/06/2024]
Abstract
Ischemic stroke (IS) is one of the principal causes of disability and death worldwide. Berberine (BBR), derived from the traditional Chinese herbal medicine Huang Lian, has been reported to inhibit the progression of stroke, but the specific mechanism whereby BBR modulates the progression of ischemic stroke remains unclear. N6-methyladenosine (m6A) modification is the most typical epigenetic modification of mRNA post-transcriptional modifications, among which METTL3 is the most common methylation transferase. During the study, the middle cerebral artery occlusion/reperfusion (MCAO/R) was established in mice, and the mice primary astrocytes and neurons induced by oxygen-glucose deprivation/reoxygenation (OGD/R) was simulated in vitro. Level of LncNEAT1, miR-377-3p was detected via RT-qPCR. The levels of Nampt and METTL3 were measured by Western blot. CCK8 and LDH assay was performed to detect cell viability. Here, we found that berberine alleviates MCAO/R-induced ischemic injury and up-regulates the expression of Nampt in astrocytes, miR-377-3p inhibits the expression of Nampt in astrocytes after OGD/R, thus promoting neuronal injury. NEAT1 binds to miR-377-3p in OGD/R astrocytes and plays a neuronal protective role as a ceRNA. METTL3 can enhance NEAT1 stability in OGD/R astrocytes by modulating m6A modification of NEAT1. Taken together, our results demonstrate that berberine exerts neuroprotective effects via the m6A methyltransferase METTL3, which regulates the NEAT1/miR-377-3p/Nampt axis in mouse astrocytes to ameliorate cerebral ischemia/reperfusion (I/R) injury.
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Affiliation(s)
- Junya Hu
- Department of Pharmacy, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Huijie Duan
- Department of Pharmacy, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Junqing Zou
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Wangli Ding
- Department of Pharmacy, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Ziqiao Wei
- Department of Second Clinical Medical School, Nanjing Medical University, Nanjing 210000, China
| | - Qiang Peng
- Department of Neurology, Nanjing First Hospital, Nanjing 210006, China
| | - Zhongyuan Li
- Department of Neurology, Nanjing First Hospital, Nanjing 210006, China
| | - Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing 210006, China
| | - Jianguo Sun
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Junrong Zhu
- Department of Pharmacy, Nanjing First Hospital, China Pharmaceutical University, Nanjing 210006, China
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
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16
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Torimura A, Kanei S, Shimizu Y, Baba T, Uotani R, Sasaki SI, Nagase D, Inoue Y, Ochiya T, Miyazaki D. Profiling miRNAs in tear extracellular vesicles: a pilot study with implications for diagnosis of ocular diseases. Jpn J Ophthalmol 2024; 68:70-81. [PMID: 37947908 DOI: 10.1007/s10384-023-01028-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 09/22/2023] [Indexed: 11/12/2023]
Abstract
PURPOSE To estimate the roles of extracellular vesicles (EVs) in tears and to determine whether their profiles are associated with the type of ocular disease. STUDY DESIGN Cross-sectional study. METHODS Tear EVs were extracted from 14 healthy participants and from 21 patients with retinal diseases (age-related macular degeneration [AMD] or diabetic macular edema [DME]). The surface marker expression of tear EVs was examined, and microRNAs (miRNAs) were extracted and profiled by use of real-time PCR array. The stability of the expression of the miRNAs was determined, and their functions were assessed by network analyses. Classification accuracy was evaluated by use of a random forest classifier and k-fold cross-validation. RESULTS The miRNAs that were highly expressed in tear EVs were miR-323-3p, miR-548a-3p, and miR-516a-5p. The most stably expressed miRNAs independent of diseases were miR-520h and miR-146b-3p. The primary networks of the highly stably expressed endogenous miRNAs were annotated as regulation of organismal injury and abnormalities. The highly expressed miRNAs for severe retinal disease were miR-151-5p for AMD and miR-422a for DME, suggesting potential roles of tear EVs in liquid biopsy. Nine miRNAs (miR-25, miR-30d, miR-125b, miR-132, miR-150, miR-184, miR-342-3p, miR-378, and miR-518b) were identified as distinguishing individuals with AMD from healthy individuals with a classification accuracy of 91.9%. CONCLUSIONS The finding that tear EVs contain characteristic miRNA species indicates that they may help in maintaining homeostasis and serve as a potential tool for disease diagnosis.
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Affiliation(s)
- Airu Torimura
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Saki Kanei
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Yumiko Shimizu
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Takashi Baba
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Ryu Uotani
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Shin-Ichi Sasaki
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Daisuke Nagase
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Yoshitsugu Inoue
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Dai Miyazaki
- Division of Ophthalmology and Visual Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan.
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Bi CF, Liu J, Hu XD, Yang LS, Zhang JF. Novel insights into the regulatory role of N6-methyladenosine methylation modified autophagy in sepsis. Aging (Albany NY) 2023; 15:15676-15700. [PMID: 38112620 PMCID: PMC10781468 DOI: 10.18632/aging.205312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/23/2023] [Indexed: 12/21/2023]
Abstract
Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection. It is characterized by high morbidity and mortality and one of the major diseases that seriously hang over global human health. Autophagy is a crucial regulator in the complicated pathophysiological processes of sepsis. The activation of autophagy is known to be of great significance for protecting sepsis induced organ dysfunction. Recent research has demonstrated that N6-methyladenosine (m6A) methylation is a well-known post-transcriptional RNA modification that controls epigenetic and gene expression as well as a number of biological processes in sepsis. In addition, m6A affects the stability, export, splicing and translation of transcripts involved in the autophagic process. Although it has been suggested that m6A methylation regulates the biological metabolic processes of autophagy and is more frequently seen in the progression of sepsis pathogenesis, the underlying molecular mechanisms of m6A-modified autophagy in sepsis have not been thoroughly elucidated. The present article fills this gap by providing an epigenetic review of the processes of m6A-modified autophagy in sepsis and its potential role in the development of novel therapeutics.
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Affiliation(s)
- Cheng-Fei Bi
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Jia Liu
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Xiao-Dong Hu
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Li-Shan Yang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
| | - Jun-Fei Zhang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan 750000, Ningxia, China
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18
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Qin M, Huang L, Li M, Shao T, Zhang J, Jiang X, Shao C, Zhao C, Pan Y, Zhou Q, Wang Y, Liu XM, Qiu J. Immunotoxicity Evaluation of Trihalophenolic Disinfection By-Products in Mouse and Human Mononuclear Macrophage Systems: The Role of RNA Epitranscriptomic Modification in Mammalian Immunity. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:127023. [PMID: 38157273 PMCID: PMC10756339 DOI: 10.1289/ehp11329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 10/15/2023] [Accepted: 11/14/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND 2,4,6-Trichlorophenol (TCP), 2,4,6-tribromophenol (TBP) and 2,4,6-triiodophenol (TIP) are three widely detected trihalophenolic disinfection by-products (DBPs). Previous studies have mainly focused on the carcinogenic risk and developmental toxicity of 2,4,6-trihalophenols. Very little is known about their immunotoxicity in mammals. OBJECTIVES We investigated the effects of 2,4,6-trihalophenols on mammalian immunity using a mouse macrophage model infected with bacteria or intracellular parasites and aimed to elucidate the underlying mechanisms from an epitranscriptomic perspective. The identified mechanisms were further validated in human peripheral blood mononuclear cells (PBMCs). METHODS The mouse macrophage cell line RAW264.7 and primary mouse peritoneal macrophages were exposed to different concentrations of TCP, TBP, and TIP. The pro-inflammatory marker Ly6C, the survival of the bacterium Escherichia coli (E. coli), and the parasite burden of Toxoplasma gondii (T. gondii) were assessed. Furthermore, the global gene expression profiling of macrophages following exposure to 2,4,6-trihalophenols was obtained through RNA-sequencing (RNA-seq). The effects of 2,4,6-trihalophenols on RNA N 6 -methyladenosine (m 6 A ) methyltransferases and total RNA m 6 A levels were evaluated using Western blotting and dot blot, respectively. Transcriptome-wide m 6 A methylome was analyzed by m 6 A -seq . In addition, expression of m 6 A regulators and total RNA m 6 A levels in human PBMCs exposed to 2,4,6-trihalophenols were detected using quantitative reverse transcriptase polymerase chain reaction and dot blot, respectively. RESULTS Mouse macrophages exposed to TCP, TBP, or TIP had lower expression of the pro-inflammatory marker Ly6C, with a greater difference from control observed for TIP-exposed cells. Consistently, macrophages exposed to such DBPs, especially TIP, were susceptible to infection with the bacterium E. coli and the intracellular parasite T. gondii, indicating a compromised ability of macrophages to defend against pathogens. Intriguingly, macrophages exposed to TIP had significantly greater m 6 A levels, which correlated with the greater expression levels of m 6 A methyltransferases. Macrophages exposed to each of the three 2,4,6-trihalophenols exhibited transcriptome-wide redistribution of m 6 A . In particular, the m 6 A peaks in genes associated with immune-related pathways were altered after exposure. In addition, differences in m 6 A were also observed in human PBMCs after exposure to 2,4,6-trihalophenols. DISCUSSION These findings suggest that 2,4,6-trihalophenol exposure impaired the ability of macrophages to defend against pathogens. This response might be associated with notable differences in m 6 A after exposure. To the best of our knowledge, this study presents the first m 6 A landscape across the transcriptome of immune cells exposed to pollutants. However, significant challenges remain in elucidating the mechanisms by which m 6 A mediates immune dysregulation in infected macrophages after 2,4,6-trihalophenol exposure. https://doi.org/10.1289/EHP11329.
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Affiliation(s)
- Min Qin
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Pathology, Children’s Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Linyuan Huang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Pharmacy, Jiangsu Health Vocational College, Nanjing, Jiangsu, China
| | - Meishuang Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Tianye Shao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jun Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Xiaoqin Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Chenlu Shao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chengsi Zhao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Yong Wang
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiao-Min Liu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Jingfan Qiu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
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19
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Zhang Z, Zhu Z, Zuo X, Wang X, Ju C, Liang Z, Li K, Zhang J, Luo L, Ma Y, Song Z, Li X, Li P, Quan H, Huang P, Yao Z, Yang N, Zhou J, Kou Z, Chen B, Ding T, Wang Z, Hu X. Photobiomodulation reduces neuropathic pain after spinal cord injury by downregulating CXCL10 expression. CNS Neurosci Ther 2023; 29:3995-4017. [PMID: 37475184 PMCID: PMC10651991 DOI: 10.1111/cns.14325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/07/2023] [Accepted: 06/10/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND Many studies have recently highlighted the role of photobiomodulation (PBM) in neuropathic pain (NP) relief after spinal cord injury (SCI), suggesting that it may be an effective way to relieve NP after SCI. However, the underlying mechanisms remain unclear. This study aimed to determine the potential mechanisms of PBM in NP relief after SCI. METHODS We performed systematic observations and investigated the mechanism of PBM intervention in NP in rats after SCI. Using transcriptome sequencing, we screened CXCL10 as a possible target molecule for PBM intervention and validated the results in rat tissues using reverse transcription-polymerase chain reaction and western blotting. Using immunofluorescence co-labeling, astrocytes and microglia were identified as the cells responsible for CXCL10 expression. The involvement of the NF-κB pathway in CXCL10 expression was verified using inhibitor pyrrolidine dithiocarbamate (PDTC) and agonist phorbol-12-myristate-13-acetate (PMA), which were further validated by an in vivo injection experiment. RESULTS Here, we demonstrated that PBM therapy led to an improvement in NP relative behaviors post-SCI, inhibited the activation of microglia and astrocytes, and decreased the expression level of CXCL10 in glial cells, which was accompanied by mediation of the NF-κB signaling pathway. Photobiomodulation inhibit the activation of the NF-κB pathway and reduce downstream CXCL10 expression. The NF-κB pathway inhibitor PDTC had the same effect as PBM on improving pain in animals with SCI, and the NF-κB pathway promoter PMA could reverse the beneficial effect of PBM. CONCLUSIONS Our results provide new insights into the mechanisms by which PBM alleviates NP after SCI. We demonstrated that PBM significantly inhibited the activation of microglia and astrocytes and decreased the expression level of CXCL10. These effects appear to be related to the NF-κB signaling pathway. Taken together, our study provides evidence that PBM could be a potentially effective therapy for NP after SCI, CXCL10 and NF-kB signaling pathways might be critical factors in pain relief mediated by PBM after SCI.
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Affiliation(s)
- Zhihao Zhang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Zhijie Zhu
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Xiaoshuang Zuo
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Xuankang Wang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Cheng Ju
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Zhuowen Liang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Kun Li
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Jiawei Zhang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Liang Luo
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Yangguang Ma
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Zhiwen Song
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Xin Li
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
- 967 Hospital of People's Liberation Army Joint Logistic Support ForceDalianLiaoningChina
| | - Penghui Li
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Huilin Quan
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Peipei Huang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Zhou Yao
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Ning Yang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Jie Zhou
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Zhenzhen Kou
- Department of Anatomy, Histology and Embryology, School of Basic MedicineAir Force Military Medical UniversityXi'anShaanxiChina
| | - Beiyu Chen
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Tan Ding
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Zhe Wang
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
| | - Xueyu Hu
- Department of OrthopedicsXijing Hospital, Air Force Military Medical UniversityXi'anShaanxiChina
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20
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Xu H, Lin C, Wang C, Zhao T, Yang J, Zhang J, Hu Y, Qi X, Chen X, Chen Y, Chen J, Guo A, Hu C. ALKBH5 Stabilized N 6-Methyladenosine-Modified LOC4191 to Suppress E. coli-Induced Apoptosis. Cells 2023; 12:2604. [PMID: 37998339 PMCID: PMC10670315 DOI: 10.3390/cells12222604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/28/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023] Open
Abstract
E. coli is a ubiquitous pathogen that is responsible for over one million fatalities worldwide on an annual basis. In animals, E. coli can cause a variety of diseases, including mastitis in dairy cattle, which represents a potential public health hazard. However, the pathophysiology of E. coli remains unclear. We found that E. coli could induce global upregulation of m6A methylation and cause serious apoptosis in bovine mammary epithelial cells (MAC-T cells). Furthermore, numerous m6A-modified lncRNAs were identified through MeRIP-seq. Interestingly, we found that the expression of LOC4191 with hypomethylation increased in MAC-T cells upon E. coli-induced apoptosis. Knocking down LOC4191 promoted E. coli-induced apoptosis and ROS levels through the caspase 3-PARP pathway. Meanwhile, knocking down ALKBH5 resulted in the promotion of apoptosis through upregulated ROS and arrested the cell cycle in MAC-T cells. ALKBH5 silencing accelerated LOC4191 decay by upregulating its m6A modification level, and the process was recognized by hnRNP A1. Therefore, this indicates that ALKBH5 stabilizes m6A-modified LOC4191 to suppress E. coli-induced apoptosis. This report discusses an initial investigation into the mechanism of m6A-modified lncRNA in cells under E. coli-induced apoptosis and provides novel insights into infectious diseases.
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Affiliation(s)
- Haojun Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Changjie Lin
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Chao Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Tianrui Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Jinghan Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Junhao Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Yanjun Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Xue Qi
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
| | - Xi Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yingyu Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianguo Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Aizhen Guo
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; (C.W.); (X.C.); (Y.C.); (J.C.); (A.G.)
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Changmin Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (H.X.); (C.L.); (T.Z.); (J.Y.); (J.Z.); (Y.H.); (X.Q.)
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21
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Anchesi I, Schepici G, Mazzon E. LncRNAs and CircRNAs as Strategies against Pathological Conditions Caused by a Hypoxic/Anoxic State. Biomolecules 2023; 13:1622. [PMID: 38002304 PMCID: PMC10669691 DOI: 10.3390/biom13111622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
Brain damage can be induced by oxygen deprivation. It is known that hypoxic or anoxic conditions can lead to changes in the expression levels of non-coding RNAs (ncRNAs), which, in turn, can be related to Central Nervous System (CNS) injuries. Therefore, it could be useful to investigate the involvement of non-coding RNAs (ncRNAs), as well as the underlying mechanisms which are able to modulate them in brain damage induced by hypoxic or anoxic conditions. In this review, we focused on recent research that associates these conditions with long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs). The results of this review demonstrate that the expression of both lncRNAs and circRNAs can be influenced by oxygen deprivation conditions and so they can contribute to inducing damage or providing neuroprotection by affecting specific molecular pathways. Furthermore, several experimental studies have shown that ncRNA activity can be regulated by compounds, thus also modifying their transcriptomic profile and their effects on CNS damages induced by hypoxic/anoxic events.
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Affiliation(s)
| | | | - Emanuela Mazzon
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Strada Statale 113, Contrada Casazza, 98124 Messina, Italy
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22
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Chen ZG, Shi X, Zhang XX, Yang FF, Li KR, Fang Q, Cao C, Chen XH, Peng Y. Neuron-secreted NLGN3 ameliorates ischemic brain injury via activating Gαi1/3-Akt signaling. Cell Death Dis 2023; 14:700. [PMID: 37880221 PMCID: PMC10600254 DOI: 10.1038/s41419-023-06219-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023]
Abstract
We here tested the potential activity and the underlying mechanisms of neuroligin-3 (NLGN3) against ischemia-reperfusion-induced neuronal cell injury. In SH-SY5Y neuronal cells and primary murine cortical neurons, NLGN3 activated Akt-mTOR and Erk signalings, and inhibited oxygen and glucose deprivation (OGD)/re-oxygenation (OGD/R)-induced cytotoxicity. Akt activation was required for NLGN3-induced neuroprotection. Gαi1/3 mediated NLGN3-induced downstream signaling activation. NLGN3-induced Akt-S6K1 activation was largely inhibited by Gαi1/3 silencing or knockout. Significantly, NLGN3-induced neuroprotection against OGD/R was almost abolished by Gαi1/3 silencing or knockout. In vivo, the middle cerebral artery occlusion (MCAO) procedure induced NLGN3 cleavage and secretion, and increased its expression and Akt activation in mouse brain tissues. ADAM10 (A Disintegrin and Metalloproteinase 10) inhibition blocked MCAO-induced NLGN3 cleavage and secretion, exacerbating ischemic brain injury in mice. Neuronal silencing of NLGN3 or Gαi1/3 in mice also inhibited Akt activation and intensified MCAO-induced ischemic brain injury. Conversely, neuronal overexpression of NLGN3 increased Akt activation and alleviated MCAO-induced ischemic brain injury. Together, NLGN3 activates Gαi1/3-Akt signaling to protect neuronal cells from ischemia-reperfusion injury.
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Affiliation(s)
- Zhi-Guo Chen
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin Shi
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Institute of Neuroscience, Soochow University, Suzhou, China
| | - Xian-Xian Zhang
- Department of Neurology, Affiliated Hospital 6 of Nantong University, Yancheng Third People's Hospital, Yancheng, China
| | - Fang-Fang Yang
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Institute of Neuroscience, Soochow University, Suzhou, China
| | - Ke-Ran Li
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Institute of Neuroscience, Soochow University, Suzhou, China
| | - Qi Fang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China.
| | - Cong Cao
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Institute of Neuroscience, Soochow University, Suzhou, China.
| | - Xiong-Hui Chen
- Department of Emergency Surgery, First Affiliated Hospital of Soochow University, Suzhou, China.
| | - Ya Peng
- Department of Neurosurgery, The Third Affiliated Hospital of Soochow University, Changzhou, China.
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23
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Liu TT, Shi X, Hu HW, Chen JP, Jiang Q, Zhen YF, Cao C, Liu XW, Liu JG. Endothelial cell-derived RSPO3 activates Gαi1/3-Erk signaling and protects neurons from ischemia/reperfusion injury. Cell Death Dis 2023; 14:654. [PMID: 37805583 PMCID: PMC10560285 DOI: 10.1038/s41419-023-06176-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/19/2023] [Accepted: 09/26/2023] [Indexed: 10/09/2023]
Abstract
The current study explores the potential function and the underlying mechanisms of endothelial cell-derived R-spondin 3 (RSPO3) neuroprotection against ischemia/reperfusion-induced neuronal cell injury. In both neuronal cells (Neuro-2a) and primary murine cortical neurons, pretreatment with RSPO3 ameliorated oxygen and glucose deprivation (OGD)/re-oxygenation (OGD/R)-induced neuronal cell death and oxidative injury. In neurons RSPO3 activated the Akt, Erk and β-Catenin signaling cascade, but only Erk inhibitors reversed RSPO3-induced neuroprotection against OGD/R. In mouse embryonic fibroblasts (MEFs) and neuronal cells, RSPO3-induced LGR4-Gab1-Gαi1/3 association was required for Erk activation, and either silencing or knockout of Gαi1 and Gαi3 abolished RSPO3-induced neuroprotection. In mice, middle cerebral artery occlusion (MCAO) increased RSPO3 expression and Erk activation in ischemic penumbra brain tissues. Endothelial knockdown or knockout of RSPO3 inhibited Erk activation in the ischemic penumbra brain tissues and increased MCAO-induced cerebral ischemic injury in mice. Conversely, endothelial overexpression of RSPO3 ameliorated MCAO-induced cerebral ischemic injury. We conclude that RSPO3 activates Gαi1/3-Erk signaling to protect neuronal cells from ischemia/reperfusion injury.
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Affiliation(s)
- Ting-Tao Liu
- Shandong University, Department of Neurology, Shandong Provincial Hospital, Jinan, China
- Department of Neurology, Shouguang Hospital of T.C.M, Shouguang, China
| | - Xin Shi
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Hong-Wei Hu
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ju-Ping Chen
- Department of Neurology, Changshu Hospital of Traditional Chinese Medicine, Changshu, China
| | - Qin Jiang
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yun-Fang Zhen
- Department of Orthopedics, Children's hospital of Soochow University, Suzhou, China.
| | - Cong Cao
- Department of Neurology and Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou, China.
| | - Xue-Wu Liu
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Jian-Gang Liu
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, China.
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24
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Voogd EJHF, Frega M, Hofmeijer J. Neuronal Responses to Ischemia: Scoping Review of Insights from Human-Derived In Vitro Models. Cell Mol Neurobiol 2023; 43:3137-3160. [PMID: 37380886 PMCID: PMC10477161 DOI: 10.1007/s10571-023-01368-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/27/2023] [Indexed: 06/30/2023]
Abstract
Translation of neuroprotective treatment effects from experimental animal models to patients with cerebral ischemia has been challenging. Since pathophysiological processes may vary across species, an experimental model to clarify human-specific neuronal pathomechanisms may help. We conducted a scoping review of the literature on human neuronal in vitro models that have been used to study neuronal responses to ischemia or hypoxia, the parts of the pathophysiological cascade that have been investigated in those models, and evidence on effects of interventions. We included 147 studies on four different human neuronal models. The majority of the studies (132/147) was conducted in SH-SY5Y cells, which is a cancerous cell line derived from a single neuroblastoma patient. Of these, 119/132 used undifferentiated SH-SY5Y cells, that lack many neuronal characteristics. Two studies used healthy human induced pluripotent stem cell derived neuronal networks. Most studies used microscopic measures and established hypoxia induced cell death, oxidative stress, or inflammation. Only one study investigated the effect of hypoxia on neuronal network functionality using micro-electrode arrays. Treatment targets included oxidative stress, inflammation, cell death, and neuronal network stimulation. We discuss (dis)advantages of the various model systems and propose future perspectives for research into human neuronal responses to ischemia or hypoxia.
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Affiliation(s)
- Eva J H F Voogd
- Clinical Neurophysiology, University of Twente, Enschede, The Netherlands.
| | - Monica Frega
- Clinical Neurophysiology, University of Twente, Enschede, The Netherlands
| | - Jeannette Hofmeijer
- Clinical Neurophysiology, University of Twente, Enschede, The Netherlands
- Department of Neurology, Rijnstate Hospital, Arnhem, The Netherlands
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25
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Liu X, Jin X, Wang X, Yan X, Wang C, Wang K, He X, Zhai W. Knockdown of A20 attenuates microglial susceptibility to OGD/R-induced ferroptosis and upregulates inflammatory responses. Immunopharmacol Immunotoxicol 2023; 45:539-548. [PMID: 36891829 DOI: 10.1080/08923973.2023.2189061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 03/05/2023] [Indexed: 03/10/2023]
Abstract
The A20 protein is considered to have a potent anti-inflammatory effect, but its mechanism of action in the regulation of ferroptosis and inflammation after stroke is still unknown. In this study, the A20-knockdown BV2 cell line (sh-A20 BV2) was constructed at first, and the oxygen-glucose deprivation/re-oxygenation (OGD/R) cell model was constructed. Both the BV2 and sh-A20 BV2 cells were treated with the ferroptosis inducer erastin for 48 h, the ferroptosis-related indicators were detected by western blot. The mechanism of ferroptosis was explored by western blot and immunofluorescence. Under OGD/R pressure, the oxidative stress level of sh-A20 BV2 cells was inhibited, but the secretion of the inflammatory factors TNF-α, IL-1β, and IL-6 was significantly upregulated. And sh-A20 BV2 cells had higher expression levels of GPX4 and NLRP3 proteins under OGD/R induction. Western blot further confirmed that sh-A20 BV2 cells inhibited OGD/R-induced ferroptosis. Under the effect of erastin of the ferroptosis inducer (0-1000 nM), sh-A20 BV2 cells had higher cell viability than wild-type BV2 cells and significantly inhibited the accumulation of ROS and the level of oxidative stress damage. It was confirmed that A20 could promote the activation of the IκBα/NFκB/iNOS pathway. It was confirmed by an iNOS inhibitor that iNOS inhibition could reverse the resistance effect of BV2 cells to OGD/R-induced ferroptosis after A20 knockdown. In conclusion, this study demonstrated that inhibition of A20 mediates a stronger inflammatory response while enhancing microglial resistance by knocking down A20 in BV2 cells.
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Affiliation(s)
- Xiaorong Liu
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Xiaomei Jin
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Xianhui Wang
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Xiaodan Yan
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Chi Wang
- Department of Neurosurgery, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Kaiyue Wang
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Xiaoyan He
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Wanqing Zhai
- Department of Neurology, The First People's Hospital of Taicang, Taicang Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
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26
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Qiu L, Jing Q, Li Y, Han J. RNA modification: mechanisms and therapeutic targets. MOLECULAR BIOMEDICINE 2023; 4:25. [PMID: 37612540 PMCID: PMC10447785 DOI: 10.1186/s43556-023-00139-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/28/2023] [Indexed: 08/25/2023] Open
Abstract
RNA modifications are dynamic and reversible chemical modifications on substrate RNA that are regulated by specific modifying enzymes. They play important roles in the regulation of many biological processes in various diseases, such as the development of cancer and other diseases. With the help of advanced sequencing technologies, the role of RNA modifications has caught increasing attention in human diseases in scientific research. In this review, we briefly summarized the basic mechanisms of several common RNA modifications, including m6A, m5C, m1A, m7G, Ψ, A-to-I editing and ac4C. Importantly, we discussed their potential functions in human diseases, including cancer, neurological disorders, cardiovascular diseases, metabolic diseases, genetic and developmental diseases, as well as immune disorders. Through the "writing-erasing-reading" mechanisms, RNA modifications regulate the stability, translation, and localization of pivotal disease-related mRNAs to manipulate disease development. Moreover, we also highlighted in this review all currently available RNA-modifier-targeting small molecular inhibitors or activators, most of which are designed against m6A-related enzymes, such as METTL3, FTO and ALKBH5. This review provides clues for potential clinical therapy as well as future study directions in the RNA modification field. More in-depth studies on RNA modifications, their roles in human diseases and further development of their inhibitors or activators are needed for a thorough understanding of epitranscriptomics as well as diagnosis, treatment, and prognosis of human diseases.
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Affiliation(s)
- Lei Qiu
- State Key Laboratory of Biotherapy and Cancer Center, Research Laboratory of Tumor Epigenetics and Genomics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China
| | - Qian Jing
- State Key Laboratory of Biotherapy and Cancer Center, Research Laboratory of Tumor Epigenetics and Genomics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China
| | - Yanbo Li
- State Key Laboratory of Biotherapy and Cancer Center, Research Laboratory of Tumor Epigenetics and Genomics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Junhong Han
- State Key Laboratory of Biotherapy and Cancer Center, Research Laboratory of Tumor Epigenetics and Genomics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China.
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Zhong M, Fan G, An Z, Chen C, Dong L. Research progress on long non-coding RNAs for spinal cord injury. J Orthop Surg Res 2023; 18:520. [PMID: 37480035 PMCID: PMC10362720 DOI: 10.1186/s13018-023-03989-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 07/09/2023] [Indexed: 07/23/2023] Open
Abstract
Spinal cord injury is a complex central nervous system disease with an unsatisfactory prognosis, often accompanied by multiple pathological processes. However, the underlying mechanisms of action of this disease are unclear, and there are no suitable targeted therapeutic options. Long non-coding RNA mediates a variety of neurological diseases and regulates various biological processes, including apoptosis and autophagy, inflammatory response, microenvironment, and oxidative stress. It is known that long non-coding RNAs have significant differences in gene expression in spinal cord injury. To further understand the mechanism of long non-coding RNA action in spinal cord injury and develop preventive and therapeutic strategies regarding spinal cord injury, this review outlines the current status of research between long non-coding RNAs and spinal cord injury and potential long non-coding RNAs targeting spinal cord injury.
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Affiliation(s)
- Musen Zhong
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Guangya Fan
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhongcheng An
- Orthopedic Traumatology II, The Sceond Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Chen Chen
- Orthopedic Traumatology II, The Sceond Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Liqiang Dong
- Orthopedic Traumatology II, The Sceond Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
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Lv J, Xing L, Zhong X, Li K, Liu M, Du K. Role of N6-methyladenosine modification in central nervous system diseases and related therapeutic agents. Biomed Pharmacother 2023; 162:114583. [PMID: 36989722 DOI: 10.1016/j.biopha.2023.114583] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
N6-methyladenosine (m6A) is a ubiquitous mRNA modification in eukaryotes. m6A occurs through the action of methyltransferases, demethylases, and methylation-binding proteins. m6A methylation of RNA is associated with various neurological disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), depression, cerebral apoplexy, brain injury, epilepsy, cerebral arteriovenous malformations, and glioma. Furthermore, recent studies report that m6A-related drugs have attracted considerable concerns in the therapeutic areas of neurological disorders. Here, we mainly summarized the role of m6A modification in neurological diseases and the therapeutic potential of m6A-related drugs. The aim of this review is expected to be useful to systematically assess m6A as a new potential biomarker and develop innovative modulators of m6A for the amelioration and treatment of neurological disorders.
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Affiliation(s)
- Junya Lv
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China
| | - Lijuan Xing
- Precision Laboratory of Panjin Central Hospital, Panjin 124000, China
| | - Xin Zhong
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China
| | - Kai Li
- Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, the First Affiliated Hospital of China Medical University, Shenyang 110001, China.
| | - Mingyan Liu
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China; Liaoning Medical Diagnosis and Treatment Center, Shenyang 110179, China.
| | - Ke Du
- School of Pharmacy, Department of Pharmacology, China Medical University, Shenyang 110122, China; Department of Surgical Oncology and General Surgery, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, the First Affiliated Hospital of China Medical University, Shenyang 110001, China; Liaoning Medical Diagnosis and Treatment Center, Shenyang 110179, China.
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Guo S, Lin T, Chen G, Shangguan Z, Zhou L, Chen Z, Shi T, Chen D, Wang Z, Liu W. METTL3 Affects Spinal Cord Neuronal Apoptosis by Regulating Bcl-2 m6A Modifications After Spinal Cord Injury. Neurospine 2023; 20:623-636. [PMID: 37401082 PMCID: PMC10323356 DOI: 10.14245/ns.2346170.085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/26/2023] [Accepted: 04/21/2023] [Indexed: 07/05/2023] Open
Abstract
OBJECTIVE Spinal cord injury (SCI) is a severe type of neurological trauma. N6-methyladenosine (m6A) modification is one of the most common internal modifications of RNA. The role of METTL3, the predominant methylation enzyme of m6A modification, in SCI remains unclear. This study aimed to investigate the role of methyltransferase METTL3 in SCI. METHODS After establishing the oxygen-glucose deprivation (OGD) model of PC12 cells and rat spinal cord hemisection model, we found that the expression of METTL3 and the overall m6A modification level were significantly increased in neurons. The m6A modification was identified on B-cell lymphoma 2 (Bcl-2) messenger RNA (mRNA) by bioinformatics analysis, and m6A-RNA immunoprecipitation and RNA immunoprecipitation. In addition, METTL3 was blocked by the specific inhibitor STM2457 and gene knockdown, and then apoptosis levels were measured. RESULTS In different models, we found that the expression of METTL3 and the overall m6A modification level were significantly increased in neurons. After inducing OGD, inhibition of METTL3 activity or expression increased the mRNA and protein levels of Bcl-2, inhibited neuronal apoptosis, and improved neuronal viability in the spinal cord. CONCLUSION Inhibition of METTL3 activity or expression can inhibit the apoptosis of spinal cord neurons after SCI through the m6A/Bcl-2 signaling pathway.
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Affiliation(s)
- Shengyu Guo
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Taotao Lin
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Gang Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Zhitao Shangguan
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Linquan Zhou
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Zhi Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Tengbin Shi
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Dehui Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Zhenyu Wang
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
| | - Wenge Liu
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, China
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30
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Zhang L, Wang X, Che W, Zhou S, Feng Y. METTL3 silenced inhibited the ferroptosis development via regulating the TFRC levels in the Intracerebral hemorrhage progression. Brain Res 2023; 1811:148373. [PMID: 37105375 DOI: 10.1016/j.brainres.2023.148373] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/06/2023] [Accepted: 04/23/2023] [Indexed: 04/29/2023]
Abstract
Intracerebral hemorrhage (ICH) refers to the hemorrhage caused by the increase and rupture of vascular brittleness in non traumatic brain parenchyma, which has been demonstrated to be closely related to ferroptosis. This study aimed to examine the effects of methyltransferase like 3 (METTL3) on the ferroptosis in the ICH progression. The PC12 cells was stimulated by hemin to establish a ICH model. The cell viability was tested by CCK8 assay. The Fe2+, reactive oxygen species (ROS), and malondialdehyde (MDA) levels were determined by the corresponding commercial kits. The cell death was analyzed by propidium Iodide (PI) staining. The lactylation levels were detected by western blot. M6A dot blot assay was performed to detected the total m6A levels and MeRIP assay was conducted to determine the m6A levels of transferrin receptor (TFRC). We found that the METTL3 and m6A levels were increased in the hemin treated PC12 cells. METTL3 knockdown increased the cell viability and decreased Fe2+, ROS and MDA levels in the hemin treated PC12 cells. The role of METTL3 knockdown in the hemin treated PC12 cells was reversed after TFRC overexpression. Mechanistically, the METTL3 lactylation was increased in the hemin treated PC12 cells, which further enhanced the protein stability and expression of METTL3. The up-regulated METTL3 increased the m6A levels and mRNA expressions of TFRC, which further induced the ferroptosis of the PC12 cells. In conclusion, the up-regulation of METTL3 lactylation enhanced the METTL3 protein stability and expression levels in hemin treated PC12 cells. METTL3 silenced suppressed the ferroptosis development through regulating the m6A levels of TFRC mRNA.
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Affiliation(s)
- Liu Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University
| | - Xiangyu Wang
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University
| | - Wenqiang Che
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University
| | - Shuoming Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University
| | - Yongjian Feng
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University.
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Chen X, Liu HY, Niu SL, Zhou T, Yuan W, Zheng PF, Chen Q, Luo SL, Gu J, Zhangsun DT, Ouyang Q. Development of sertraline analogues as potential anti-ischemic stroke agents. Eur J Med Chem 2023; 252:115273. [PMID: 36948129 DOI: 10.1016/j.ejmech.2023.115273] [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: 01/11/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/17/2023]
Abstract
Ischemic stroke (IS) is harmful to human health and social development, and there is no medicine available at present. To find the hit compound for treating ischemic stroke, we screened 28 FDA approved nervous system drugs by using an in vitro OGD-induced stroke model. Notably, our in vitro and in vivo studies demonstrated that low-dose sertraline had good neuroprotective activities, while high-dose sertraline showed significant toxicity. Interestingly, the same high-dose sertraline in the control group did not exhibit any obvious toxic effect. Therefore, it is important to modify the structure of sertraline to improve the activity and reduce the toxicity. Stereoisomers of sertraline were first investigated to analyze the influence of stereochemistry on the neuroprotective activities, which showed no obvious difference. Then we evaluated the activity of our previously reported sertraline analogues and found that introducing amide or alkane groups to the amino moiety might be beneficial to enhance the activity and reduce the toxicity. Thus, 10 new analogues were designed, synthesized, and evaluated. Among them, compound OY-201 showed the best safety and neuroprotective activity in both in vitro and in vivo models. Moreover, it exhibited good blood-brain barrier (BBB) permeability, indicating its potential for the development of anti-ischemic stroke drugs.
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Affiliation(s)
- Xin Chen
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Hong-Yuan Liu
- Department of Pharmaceutical Chemistry, Third Military Medical University, Chongqing, 400038, China
| | - Sheng-Li Niu
- Department of Pharmaceutical Chemistry, Third Military Medical University, Chongqing, 400038, China
| | - Ting Zhou
- Department of Neurology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Wen Yuan
- Department of Pharmaceutical Chemistry, Third Military Medical University, Chongqing, 400038, China
| | - Peng-Fei Zheng
- Department of Pharmaceutical Chemistry, Third Military Medical University, Chongqing, 400038, China
| | - Qiong Chen
- Department of Neurology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Su-Lan Luo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China; Medical College, Guangxi University, Nanning, 530004, China
| | - Jing Gu
- Department of Pharmaceutical Chemistry, Third Military Medical University, Chongqing, 400038, China.
| | - Dong-Ting Zhangsun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China.
| | - Qin Ouyang
- Department of Pharmaceutical Chemistry, Third Military Medical University, Chongqing, 400038, China.
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32
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Ghafouri-Fard S, Shoorei H, Hussen BM, Dong P, Zhai T, Taheri M, Samadian M. The significance of N6-methyladenosine-modified non-coding RNAs in different disorders. Eur J Pharmacol 2023; 946:175644. [PMID: 36921707 DOI: 10.1016/j.ejphar.2023.175644] [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: 12/26/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/16/2023]
Abstract
N6-methyladenosine (m6A) is the most widespread endogenous modification affecting the expression of eukaryotic mRNA transcripts. Recent studies have shown that the m6A marks within non-coding RNAs can affect their functions and expression in a manner similar to that of mRNA-coding genes. Since non-coding RNAs are involved in the pathophysiology of several disorders, identification of the role of m6A marks in the regulation of expression of non-coding RNAs can open a new era for identifying underlying mechanisms of several disorders and designing novel therapeutic modalities for a variety of disorders, particularly cancers. Moreover, a number of non-coding RNAs can affect m6A levels. In the current review, we discuss the impacts of m6A marks on the expression of non-coding RNAs in the context of different disorders, such as bone, gastrointestinal, neurologic, renal, pulmonary, hepatic and other disorders.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran; Clinical Research Development Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region, Erbil, Iraq
| | - Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tianyue Zhai
- Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Hokkaido University, Sapporo, Japan
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany; Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Samadian
- Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Zhang Q, Li G, Kong J, Dai J, Fan Z, Li J. miR‑222-3p reduces neuronal cell apoptosis and alleviates spinal cord injury by inhibiting Bbc3 and Bim. Neurosci Res 2023; 188:39-50. [PMID: 36328305 DOI: 10.1016/j.neures.2022.10.008] [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: 08/09/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
Spinal cord injury (SCI) is a severe traumatic event, but without any established effective treatment because of the irreversible neuronal death. Here, we investigated the role of miR-222-3p in neuronal apoptosis following SCI. Rat SCI models and neuron hypoxia models were accordingly established. The Bbc3, Bim, Bcl-2, Bax, cleaved-caspase 3, cleaved-caspase 9, Cytochrome c, and miR-222-3p expression levels were examined by Western blotting and real-time reverse transcription polymerase chain reaction (RT-qPCR). The possible association between miR-222-3p and Bbc3/Bim was analyzed by dual-luciferase assay. The neuron viability was assessed by Cell Counting Kit-8 assay and Nissl's staining. Live cell staining was performed to detect the mitochondrial membrane potential and neuronal apoptosis. Rat locomotor function was assessed using the Basso-Beattie-Bresnahan scores. Cytochrome c was outflowed from the mitochondria after SCI or hypoxia treatment, and Bbc3, Bim, Bax, cleaved-caspase 9, and cleaved-caspase 3 were significantly upregulated, while Bcl-2 and miR-222-3p were decreased remarkably. Meanwhile, neuronal cell viability was significantly inhibited. Treatment of miR-222-3p significantly suppressed the Cytochrome c efflux and neuronal apoptosis and improved neuronal cell viability and motor function in SCI rats. Moreover, we found that Bbc3 and Bim were the direct targets of miR-222-3p. Overall, our data suggest that miR-222-3p could alleviate the mitochondrial pathway-mediated apoptosis and motor dysfunction in rats after SCI by targeting Bbc3 and Bim.
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Affiliation(s)
- Qiangqiang Zhang
- Department of Orthopedics, The First Affiliated Hospital, Jinzhou Medical University, Jinzhou 121000, China
| | - Gang Li
- Department of Orthopedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
| | - Jundong Kong
- Department of Orthopedics, The First Affiliated Hospital, Jinzhou Medical University, Jinzhou 121000, China
| | - Junyu Dai
- Department of Orthopedics, The First Affiliated Hospital, Jinzhou Medical University, Jinzhou 121000, China
| | - Zhongkai Fan
- Department of Orthopedics, The First Affiliated Hospital, Jinzhou Medical University, Jinzhou 121000, China.
| | - Jian Li
- Department of Orthopedics, The First Affiliated Hospital, Jinzhou Medical University, Jinzhou 121000, China.
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Expression analysis and targets prediction of microRNAs in OGD/R treated astrocyte-derived exosomes by smallRNA sequencing. Genomics 2023; 115:110594. [PMID: 36863417 DOI: 10.1016/j.ygeno.2023.110594] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/03/2023] [Accepted: 02/26/2023] [Indexed: 03/04/2023]
Abstract
Astrocytes activate and crosstalk with neurons influencing inflammatory responses following ischemic stroke. The distribution, abundance, and activity of microRNAs in astrocytes-derived exosomes after ischemic stroke remains largely unknown. In this study, exosomes were extracted from primary cultured mouse astrocytes via ultracentrifugation, and exposed to oxygen glucose deprivation/re‑oxygenation injury to mimic experimental ischemic stroke. SmallRNAs from astrocyte-derived exosomes were sequenced, and differentially expressed microRNAs were randomly selected and verified by stem-loop real time quantitative polymerase chain reaction. We found that 176 microRNAs, including 148 known and 28 novel microRNAs, were differentially expressed in astrocyte-derived exosomes following oxygen glucose deprivation/re‑oxygenation injury. In gene ontology enrichment, Kyoto encyclopedia of genes and genomes pathway analyses, and microRNA target gene prediction analyses, these alteration in microRNAs were associated to a broad spectrum of physiological functions including signaling transduction, neuroprotection and stress responses. Our findings warrant further investigating of these differentially expressed microRNAs in human diseases particularly ischemic stroke.
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35
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The Role of N 6-Methyladenosine in Inflammatory Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9744771. [PMID: 36578520 PMCID: PMC9792239 DOI: 10.1155/2022/9744771] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022]
Abstract
N6-Methyladenosine (m6A) is the most abundant epigenetic RNA modification in eukaryotes, regulating RNA metabolism (export, stability, translation, and decay) in cells through changes in the activity of writers, erasers, and readers and ultimately affecting human life or disease processes. Inflammation is a response to infection and injury in various diseases and has therefore attracted significant attention. Currently, extensive evidence indicates that m6A plays an essential role in inflammation. In this review, we focus on the mechanisms of m6A in inflammatory autoimmune diseases, metabolic disorder, cardio-cerebrovascular diseases, cancer, and pathogen-induced inflammation, as well as its possible role as targets for clinical diagnosis and treatment.
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36
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Shao L, Chen B, Wu Q, Xu Y, Yi J, Guo Z, Liu B. N 6-methyladenosine-modified lncRNA and mRNA modification profiles in cerebral ischemia-reperfusion injury. Front Genet 2022; 13:973979. [PMID: 36479246 PMCID: PMC9720305 DOI: 10.3389/fgene.2022.973979] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 11/08/2022] [Indexed: 11/03/2023] Open
Abstract
Cerebral ischemia-reperfusion injury (CIRI) is common in ischemic stroke and seriously affects the prognosis of patients. At present, N6-methyladenosine (m6A) modification of lncRNAs and mRNAs has been reported in other diseases, such as cancer, but its role in CIRI has not been clarified. In this study, we aimed to investigate the m6A lncRNA and m6A mRNA modification profiles in CIRI. First, we detected the total level of m6A and the changes in related m6A methyltransferases and demethylases in the brain tissue of rats with CIRI and then identified differentially modified lncRNAs and mRNAs in CIRI by lncRNA and mRNA epigenetic transcriptomic microarray. In addition, bioinformatics analysis was used to predict the underlying functions and related pathways of related lncRNAs and mRNAs. We found that the total m6A methylation level was significantly increased, and the expression of fat mass and obesity-associated protein (FTO) was downregulated after CIRI. In addition, a large number of m6A-modified lncRNAs and mRNAs appeared after CIRI, and these genes were mainly enriched for the Toll-like receptor signaling pathway, peroxisome proliferator-activated receptor (PPAR) signaling pathway, and mitogen-activated protein kinase (MAPK) signaling pathway. Our findings provide the basis and insights for further studies on m6A modification in CIRI.
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Affiliation(s)
- Le Shao
- The First Hospital, Hunan University of Chinese Medicine, Changsha, China
- MOE Key Laboratory of Research & Translation on Prevention & Treatment of Major Diseases in Internal Medicine of Traditional Chinese Medicine, Changsha, China
| | - Bowei Chen
- The First Hospital, Hunan University of Chinese Medicine, Changsha, China
- MOE Key Laboratory of Research & Translation on Prevention & Treatment of Major Diseases in Internal Medicine of Traditional Chinese Medicine, Changsha, China
| | - Qibiao Wu
- Faculty of Chinese Medicine and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
- Zhuhai MUST Science and Technology Research Institute, Zhuhai, China
| | - Yaqian Xu
- The First Hospital, Hunan University of Chinese Medicine, Changsha, China
- MOE Key Laboratory of Research & Translation on Prevention & Treatment of Major Diseases in Internal Medicine of Traditional Chinese Medicine, Changsha, China
| | - Jian Yi
- The First Hospital, Hunan University of Chinese Medicine, Changsha, China
- MOE Key Laboratory of Research & Translation on Prevention & Treatment of Major Diseases in Internal Medicine of Traditional Chinese Medicine, Changsha, China
| | - Zhihua Guo
- College of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Baiyan Liu
- Hunan Academy of Chinese Medicine, Changsha, China
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37
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Zhang X, Wang Y, Dong B, Jiang Y, Liu D, Xie K, Yu Y. Expression pattern and clinical value of Key RNA methylation modification regulators in ischemic stroke. Front Genet 2022; 13:1009145. [PMID: 36263422 PMCID: PMC9574037 DOI: 10.3389/fgene.2022.1009145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
Ischemic stroke (IS) is one of the major causes of death and disability worldwide, and effective diagnosis and treatment methods are lacking. RNA methylation, a common epigenetic modification, plays an important role in disease progression. However, little is known about the role of RNA methylation modification in the regulation of IS. The aim of this study was to investigate RNA methylation modification patterns and immune infiltration characteristics in IS through bioinformatics analysis. We downloaded gene expression profiles of control and IS model rat brain tissues from the Gene Expression Omnibus database. IS profiles were divided into two subtypes based on RNA methylation regulators, and functional enrichment analyses were conducted to determine the differentially expressed genes (DEGs) between the subtypes. Weighted gene co-expression network analysis was used to explore co-expression modules and genes based on DEGs. The IS clinical diagnosis model was successfully constructed and four IS characteristic genes (GFAP, GPNMB, FKBP9, and CHMP5) were identified, which were significantly upregulated in IS samples. Characteristic genes were verified by receiver operating characteristic curve and real-time quantitative PCR analyses. The correlation between characteristic genes and infiltrating immune cells was determined by correlation analysis. Furthermore, GPNMB was screened using the protein-protein interaction network, and its regulatory network and the potential therapeutic drug chloroquine were predicted. Our finding describes the expression pattern and clinical value of key RNA methylation modification regulators in IS and novel diagnostic and therapeutic targets of IS from a new perspective.
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Affiliation(s)
- Xinyue Zhang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Anesthesiology, Tianjin, China
| | - Yuanlin Wang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Anesthesiology, Tianjin, China
| | - Beibei Dong
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Anesthesiology, Tianjin, China
| | - Yi Jiang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Anesthesiology, Tianjin, China
| | - Dan Liu
- School of Medicine, Nankai University, Tianjin, China
| | - Keliang Xie
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Anesthesiology, Tianjin, China
- Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yonghao Yu
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Anesthesiology, Tianjin, China
- *Correspondence: Yonghao Yu,
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Tian M, Mao L, Zhang L. Crosstalk among N6-methyladenosine modification and RNAs in central nervous system injuries. Front Cell Neurosci 2022; 16:1013450. [PMID: 36246528 PMCID: PMC9556889 DOI: 10.3389/fncel.2022.1013450] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
Central nervous system (CNS) injuries, including traumatic brain injury (TBI), intracerebral hemorrhage (ICH) and ischemic stroke, are the most common cause of death and disability around the world. As the most common modification on ribonucleic acids (RNAs), N6-methyladenosine (m6A) modification has recently attracted great attentions due to its functions in determining the fate of RNAs through changes in splicing, translation, degradation and stability. A large number of studies have suggested that m6A modification played an important role in brain development and involved in many neurological disorders, particularly in CNS injuries. It has been proposed that m6A modification could improve neurological impairment, inhibit apoptosis, suppress inflammation, reduce pyroptosis and attenuate ferroptosis in CNS injuries via different molecules including phosphatase and tensin homolog (PTEN), NLR family pyrin domain containing 3 (NLRP3), B-cell lymphoma 2 (Bcl-2), glutathione peroxidase 4 (GPX4), and long non-coding RNA (lncRNA). Therefore, m6A modification showed great promise as potential targets in CNS injuries. In this article, we present a review highlighting the role of m6A modification in CNS injuries. Hence, on the basis of these properties and effects, m6A modification may be developed as therapeutic agents for CNS injury patients.
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Affiliation(s)
- Mi Tian
- Department of Anesthesiology, Affiliated Zhongda Hospital of Southeast University, Nanjing, Jiangsu, China
| | - Lei Mao
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Li Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
- *Correspondence: Li Zhang,
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You S, Su X, Ying J, Li S, Qu Y, Mu D. Research Progress on the Role of RNA m6A Modification in Glial Cells in the Regulation of Neurological Diseases. Biomolecules 2022; 12:biom12081158. [PMID: 36009052 PMCID: PMC9405963 DOI: 10.3390/biom12081158] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
Glial cells are the most abundant and widely distributed cells that maintain cerebral homeostasis in the central nervous system. They mainly include microglia, astrocytes, and the oligodendrocyte lineage cells. Moreover, glial cells may induce pathological changes, such as inflammatory responses, demyelination, and disruption of the blood–brain barrier, to regulate the occurrence and development of neurological diseases through various molecular mechanisms. Furthermore, RNA m6A modifications are involved in various pathological processes associated with glial cells. In this review, the roles of glial cells in physiological and pathological states, as well as advances in understanding the mechanisms by which glial cells regulate neurological diseases under RNA m6A modification, are summarized, hoping to provide new perspectives on the deeper mechanisms and potential therapeutic targets for neurological diseases.
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Affiliation(s)
- Siyi You
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaojuan Su
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu 610041, China
| | - Junjie Ying
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu 610041, China
| | - Shiping Li
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu 610041, China
| | - Yi Qu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu 610041, China
| | - Dezhi Mu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu 610041, China
- Correspondence:
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Li M, Meng Z, Yu S, Li J, Wang Y, Yang W, Wu H. Baicalein ameliorates cerebral ischemia-reperfusion injury by inhibiting ferroptosis via regulating GPX4/ACSL4/ACSL3 axis. Chem Biol Interact 2022; 366:110137. [DOI: 10.1016/j.cbi.2022.110137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 01/18/2023]
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Yu J, Chen H, Ma H, Zhang Z, Zhu X, Wang P, Liu R, Jin X, Zhao Y. Transcriptome-Wide N6-Methyladenosine Methylome Alteration in the Rat Spinal Cord After Acute Traumatic Spinal Cord Injury. Front Neurosci 2022; 16:848119. [PMID: 35706691 PMCID: PMC9189298 DOI: 10.3389/fnins.2022.848119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/21/2022] [Indexed: 11/23/2022] Open
Abstract
Recent studies showed that RNA N6-methyladenosine (m6A) plays an important role in neurological diseases. We used methylated RNA immunoprecipitation sequencing (MeRIP-Seq) technology to generate the m6A modification map after traumatic spinal cord injury (TSCI). A total of 2,609 differential m6A peaks were identified after TSCI. Our RNA sequencing results after TSCI showed 4,206 genes with significantly altered expression. Cross-link analysis of m6A sequencing results and RNA sequencing results showed that 141 hyper-methylated genes were upregulated, 53 hyper-methylated genes were downregulated, 57 hypo-methylated genes were upregulated, and 197 hypo-methylated genes were downregulated. Among these, the important inflammatory response factor Tlr4 and the important member of the neurotrophin family Ngf were both upregulated and hyper-methylated after TSCI. This study provides that in the future, the epigenetic modifications of the genes could be used as an indicator of TSCI.
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Affiliation(s)
- Jiangtao Yu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Haihua Chen
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Haoli Ma
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhongxiang Zhang
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaolu Zhu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
- *Correspondence: Xiaolu Zhu,
| | - Pengcheng Wang
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ruining Liu
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaoqing Jin
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan, China
- Xiaoqing Jin,
| | - Yan Zhao
- Emergency Center, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Research Center for Emergency and Resuscitation, Zhongnan Hospital of Wuhan University, Wuhan, China
- Yan Zhao,
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Geng X, Li Z, Yang Y. Emerging Role of Epitranscriptomics in Diabetes Mellitus and Its Complications. Front Endocrinol (Lausanne) 2022; 13:907060. [PMID: 35692393 PMCID: PMC9184717 DOI: 10.3389/fendo.2022.907060] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/14/2022] [Indexed: 01/13/2023] Open
Abstract
Diabetes mellitus (DM) and its related complications are among the leading causes of disability and mortality worldwide. Substantial studies have explored epigenetic regulation that is involved in the modifications of DNA and proteins, but RNA modifications in diabetes are still poorly investigated. In recent years, posttranscriptional epigenetic modification of RNA (the so-called 'epitranscriptome') has emerged as an interesting field of research. Numerous modifications, mainly N6 -methyladenosine (m6A), have been identified in nearly all types of RNAs and have been demonstrated to have an indispensable effect in a variety of human diseases, such as cancer, obesity, and diabetes. Therefore, it is particularly important to understand the molecular basis of RNA modifications, which might provide a new perspective for the pathogenesis of diabetes mellitus and the discovery of new therapeutic targets. In this review, we aim to summarize the recent progress in the epitranscriptomics involved in diabetes and diabetes-related complications. We hope to provide some insights for enriching the understanding of the epitranscriptomic regulatory mechanisms of this disease as well as the development of novel therapeutic targets for future clinical benefit.
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Affiliation(s)
- Xinqian Geng
- Department of Endocrinology, The Affiliated Hospital of Yunnan University and the Second People’s Hospital of Yunnan Province, Kunming, China
| | - Zheng Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying Yang
- Department of Endocrinology, The Affiliated Hospital of Yunnan University and the Second People’s Hospital of Yunnan Province, Kunming, China
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43
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Role of main RNA modifications in cancer: N 6-methyladenosine, 5-methylcytosine, and pseudouridine. Signal Transduct Target Ther 2022; 7:142. [PMID: 35484099 PMCID: PMC9051163 DOI: 10.1038/s41392-022-01003-0] [Citation(s) in RCA: 76] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 12/16/2022] Open
Abstract
Cancer is one of the major diseases threatening human life and health worldwide. Epigenetic modification refers to heritable changes in the genetic material without any changes in the nucleic acid sequence and results in heritable phenotypic changes. Epigenetic modifications regulate many biological processes, such as growth, aging, and various diseases, including cancer. With the advancement of next-generation sequencing technology, the role of RNA modifications in cancer progression has become increasingly prominent and is a hot spot in scientific research. This review studied several common RNA modifications, such as N6-methyladenosine, 5-methylcytosine, and pseudouridine. The deposition and roles of these modifications in coding and noncoding RNAs are summarized in detail. Based on the RNA modification background, this review summarized the expression, function, and underlying molecular mechanism of these modifications and their regulators in cancer and further discussed the role of some existing small-molecule inhibitors. More in-depth studies on RNA modification and cancer are needed to broaden the understanding of epigenetics and cancer diagnosis, treatment, and prognosis.
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Song L, Wu Q, Fu X, Wang W, Dai Z, Gu Y, Zhuo Y, Fang S, Zhao W, Wang X, Wang Q, Fang J. In Silico Identification and Mechanism Exploration of Active Ingredients against Stroke from An-Gong-Niu-Huang-Wan (AGNHW) Formula. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5218993. [PMID: 35432729 PMCID: PMC9006076 DOI: 10.1155/2022/5218993] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/22/2022] [Accepted: 03/10/2022] [Indexed: 11/17/2022]
Abstract
An-Gong-Niu-Huang-Wan (AGNHW) is a well-known formula for treating cerebrovascular diseases, with roles including clearing away heat, detoxification, and wake-up consciousness. In recent years, AGNHW has been commonly used for the treatment of ischemic stroke, but the mechanism by which AGNHW relieves stroke has not been clearly elucidated. In the current study, we developed a multiple systems pharmacology-based framework to identify the potential antistroke ingredients in AGNHW and explore the underlying mechanisms of action (MOA) of AGNHW against stroke from a holistic perspective. Specifically, we performed a network-based method to identify the potential antistroke ingredients in AGNHW by integrating the drug-target network and stroke-associated genes. Furthermore, the oxygen-glucose deprivation/reoxygenation (OGD/R) model was used to validate the anti-inflammatory effects of the key ingredients by determining the levels of inflammatory cytokines, including interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α. The antiapoptotic effects of the key ingredients were also confirmed in vitro. Integrated pathway analysis of AGNHW revealed that it might regulate three biological signaling pathways, including IL-17, TNF, and PI3K-AKT, to play a protective role in stroke. Moreover, 30 key antistroke ingredients in AGNHW were identified via network-based in silico prediction and were confirmed to have known neuroprotective effects. After drug-like property evaluation and pharmacological validation in vitro, scutellarein (SCU) and caprylic acid (CA) were selected for further antistroke investigation. Finally, systems pharmacology-based analysis of CA and SCU indicated that they might exert antistroke effects via the apoptotic signaling pathway and inflammatory response, which was further validated in an in vitro stroke model. Overall, the current study proposes an integrative systems pharmacology approach to identify antistroke ingredients and demonstrate the underlying pharmacological MOA of AGNHW in stroke, which provides an alternative strategy to investigate novel traditional Chinese medicine formulas for complex diseases.
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Affiliation(s)
- Lei Song
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510404, China
| | - Qihui Wu
- Clinical Research Center, Hainan Provincial Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Haikou 570100, China
| | - Xiaomei Fu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Wentao Wang
- School of Life Sciences, University of Liverpool, Liverpool L69 3BX, UK
| | - Zhao Dai
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yong Gu
- Clinical Research Center, Hainan Provincial Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Haikou 570100, China
| | - Yue Zhuo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Shuhuan Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Wei Zhao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xiaoyun Wang
- The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510404, China
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Jiansong Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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Xiao T, Qu H, Zeng Z, Li C, Wan J. Interleukin-35 from Interleukin-4-Stimulated Macrophages Alleviates Oxygen Glucose Deprivation/Re-oxygenation-Induced Neuronal Cell Death via the Wnt/β-Catenin Signaling Pathway. Neurotox Res 2022; 40:420-431. [PMID: 35150397 DOI: 10.1007/s12640-022-00478-7] [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: 09/22/2021] [Revised: 01/06/2022] [Accepted: 01/26/2022] [Indexed: 11/30/2022]
Abstract
Currently, brain stroke is one of the leading causes of death and disabilities. It results in depletion of oxygen and glucose in certain areas of the brain, leading to neuronal death. Re-oxygenation has been proven to attenuate neuronal damage; however, sudden oxygen supply may also cause oxidative stress and subsequent inflammation. Hence, therapies to suppress re-oxygenation-induced oxidative damage are urgently needed. Interleukin (IL)-35, an immunomodulator secreted by regulatory T cells and regulatory B cells, is proven to be a strong immune-repressive cytokine. Here, we investigated the potential role of IL-35 in a disease model of oxygen glucose deprivation/re-oxygenation (OGD/R) and found that M2 macrophage-derived IL-35 significantly alleviated inflammatory response induced by oxidative stress. Our results also showed that IL-35 treatment decreased OGD/R-induced neuronal cell death and inflammatory response. Additionally, we demonstrated that IL-35 suppresses inflammatory response via the Wnt/β-catenin signaling pathway. Hence, our findings indicate that IL-35 therapy has great potential in the treatment of OGD/R-induced oxidative damage and related inflammatory diseases.
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Affiliation(s)
- Tao Xiao
- Department of Neurosurgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Hongtao Qu
- Department of Neurosurgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Zhiqing Zeng
- Department of Neurosurgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Chuanghua Li
- Department of Neurosurgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Juan Wan
- Department of Neurology, The First Affiliated Hospital, Hengyang Medical School, University of South China, No. 69 Chuanshan Road, Hengyang, Hunan Province, China.
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46
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Zhao X, Yang L, Qin L. Methyltransferase-like 3 (METTL3) attenuates cardiomyocyte apoptosis with myocardial ischemia-reperfusion (I/R) injury through miR-25-3p and miR-873-5p. Cell Biol Int 2021; 46:992. [PMID: 34553450 DOI: 10.1002/cbin.11706] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Methyltransferase-like 3 (METTL3) mediated N6 -methyladenosine (m6A) promotes microRNAs (miRNAs) maturation by processing the primary miRNAs, and METTL3 involves in regulating the development of various diseases, including myocardial ischemia-reperfusion (I/R) injury. However, up until now, the association between METTL3 regulated miRNAs and I/R injury is not fully investigated, which makes investigations on this academic issue necessary. In this study, we showed that METTL3 was downregulated in mice I/R myocardial tissues and hypoxic/re-oxygenated (H/R) cardiomyocytes, and upregulation of METTL3 attenuated I/R and H/R-induced cell apoptosis. In addition, we screened out that two miRNAs, including miR-25-3p and miR-873-5p, were positively regulated by METTL3 in cardiomyocytes in a DGCR8-dependent manner. In addition, both miR-25-3p and miR-873-5p were significantly downregulated by I/R and H/R treatments in mice tissues and cardiomyocytes, and overexpression of the above two miRNAs were effective to improve cell viability in cardiomyocytes under H/R stress. Next, we evidenced that METTL3 suppressed H/R-induced cell death via upregulating miR-25-3p and miR-873-5p. Finally, the potential downstream mechanisms were investigated, and we expectedly found that METTL3 activated the PI3K/Akt pathway in H/R-treated cardiomyocytes through modulating miR-25-3p and miR-873-5p, and the PI3K/Akt pathway inhibitor (LY294002) abrogated the protective effects of METTL3 overexpression in cardiomyocytes with H/R treatment. Collectively, we concluded that METTL3 upregulated miR-25-3p and miR-873-5p to activate the PI3K/Akt pathway, resulting in the suppression of I/R injury.
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Affiliation(s)
- Xiangmei Zhao
- Department of Emergency, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Lei Yang
- Department of Emergency, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Lijie Qin
- Department of Emergency, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
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Schepici G, Contestabile V, Valeri A, Mazzon E. Ginger, a Possible Candidate for the Treatment of Dementias? Molecules 2021; 26:5700. [PMID: 34577171 PMCID: PMC8470323 DOI: 10.3390/molecules26185700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/13/2021] [Accepted: 09/19/2021] [Indexed: 12/17/2022] Open
Abstract
As the human life expectancy increases, age-linked diseases have become more and more frequent. The worldwide increment of dementia cases demands medical solutions, but the current available drugs do not meet all the expectations. Recently the attention of the scientific community was attracted by natural compounds, used in ancient medicine, known for their beneficial effects and high tolerability. This review is focused on Ginger (Zingiber officinale) and explore its properties against Alzheimer's Disease and Vascular Dementia, two of the most common and devastating forms of dementia. This work resumes the beneficial effects of Ginger compounds, tested in computational in vitro and in vivo models of Alzheimer's Disease and Vascular Dementia, along with some human tests. All these evidences suggest a potential role of the compounds of ginger not only in the treatment of the disease, but also in its prevention.
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Affiliation(s)
| | | | | | - Emanuela Mazzon
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy; (G.S.); (V.C.); (A.V.)
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48
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Wang Q, Liang Y, Luo X, Liu Y, Zhang X, Gao L. N6-methyladenosine RNA modification: A promising regulator in central nervous system injury. Exp Neurol 2021; 345:113829. [PMID: 34339678 DOI: 10.1016/j.expneurol.2021.113829] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/08/2021] [Accepted: 07/29/2021] [Indexed: 12/21/2022]
Abstract
In addition to DNA methylation, reversible epigenetic modification occurring in RNA has been discovered recently. The most abundant type of RNA methylation is N6-methyladenosine (m6A) modification, which is dynamically regulated by methylases ("writers"), demethylases ("erasers") and m6A-binding proteins ("readers"). As an essential posttranscriptional regulator, m6A can control mRNA splicing, processing, stability, export and translation. Recent studies have revealed that m6A modification has the strongest tissue specificity for brain tissue and plays crucial roles in central nervous system (CNS) injures by affecting its downstream target genes or non-coding RNAs. This review focuses on the expression and function of m6A regulatory proteins in CNS trauma in vitro and in vivo. We also highlight the latest insights into the molecular mechanisms of pathological damage in the CNS. Understanding m6A dynamics, functions, and machinery will yield an opportunity for designing and developing novel therapeutic agents for CNS injuries.
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Affiliation(s)
- Qiang Wang
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China; Department of Immunology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Yundan Liang
- Department of Pathology and Pathophysiology, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Xiaolei Luo
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Yuqing Liu
- Laboratory of Metabolomics and Gynecological Disease Research, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xiaoli Zhang
- Laboratory of Metabolomics and Gynecological Disease Research, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China
| | - Linbo Gao
- Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China.
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Yu J, She Y, Ji SJ. m 6A Modification in Mammalian Nervous System Development, Functions, Disorders, and Injuries. Front Cell Dev Biol 2021; 9:679662. [PMID: 34113622 PMCID: PMC8185210 DOI: 10.3389/fcell.2021.679662] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/03/2021] [Indexed: 01/27/2023] Open
Abstract
N 6-methyladenosine (m6A) modification, as the most prevalent internal modification on mRNA, has been implicated in many biological processes through regulating mRNA metabolism. Given that m6A modification is highly enriched in the mammalian brain, this dynamic modification provides a crucial new layer of epitranscriptomic regulation of the nervous system. Here, in this review, we summarize the recent progress on studies of m6A modification in the mammalian nervous system ranging from neuronal development to basic and advanced brain functions. We also highlight the detailed underlying mechanisms in each process mediated by m6A writers, erasers, and readers. Besides, the involvement of dysregulated m6A modification in neurological disorders and injuries is discussed as well.
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Affiliation(s)
- Jun Yu
- Shenzhen Key Laboratory of Gene Regulation and Systems Biology, Brain Research Center, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, China.,SUSTech-HKU Joint Ph.D. Program, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yuanchu She
- Shenzhen Key Laboratory of Gene Regulation and Systems Biology, Brain Research Center, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, China
| | - Sheng-Jian Ji
- Shenzhen Key Laboratory of Gene Regulation and Systems Biology, Brain Research Center, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, China
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Bao D, Li M, Zhou D, Zhuang C, Ge Z, Wei Q, Zhang L. miR-130b-3p is high-expressed in polycystic ovarian syndrome and promotes granulosa cell proliferation by targeting SMAD4. J Steroid Biochem Mol Biol 2021; 209:105844. [PMID: 33582305 DOI: 10.1016/j.jsbmb.2021.105844] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND Being one of the most prevalent metabolic and endocrine disorders, Polycystic Ovary Syndrome (PCOS) has been proven to be associated with microRNA-130b-3p (miR-130b-3p). However, the exact role played by miR-130b-3p in the pathogenesis and progression of PCOS remains unknown. Thus, this article is focused on elucidating the function of miR-130b-3p in the pathogenesis of PCOS. METHODS The expression levels of miR-130b-3p and SMAD4 in tissues and cells responsible for the development of PCOS were determined by RT-qPCR and western blot. A miR-130b-3p mimic/inhibitor or si-SMAD4 were transfected into KGN cells. The cell viability was detected by CCK-8 and EDU methods. The activity of caspase-3 was measured by caspase-3 analysis. Subsequently, apoptosis and the cell cycle were measured via flow cytometry. The correlation between SMAD4 and miR-130b-3p was confirmed using an RNA pull-down assay and a dual luciferase reporter system assay. RESULTS MiR-130b-3p was upregulated in the KGN cells and ovarian granulosa cells (GCs) of PCOS patients. It was found that miR-130b-3p overexpression or SMAD4 silencing can promote KGN cell proliferation and positive EDU rates, induce S phase arrest, inhibit apoptosis and caspase-3 activity. On the other hand, miR-130b-3p inhibitors reduce KGN cell proliferation, inhibit apoptosis and reverse the effect of si-SMAD4. CONCLUSION MiR-130b-3p directly interacts with SMAD4 to induce KGN cell proliferation, inhibit apoptosis, suggesting that miR-130b-3p expression is positively correlated with the development of PCOS. This may serve as new evidence for the abnormal proliferation of GCs in PCOS.
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Affiliation(s)
- Dongqin Bao
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China.
| | - Mingan Li
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China
| | - Dongxia Zhou
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China
| | - Chaohui Zhuang
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China
| | - Zhijuan Ge
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China
| | - Qian Wei
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China
| | - Limin Zhang
- Center for Reproductive Medicine, The Affiliated Shuyang Hospital of Xuzhou Medical University, Suqian City, Jiangsu Province, China
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