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Kong X, Wu T, Cai H, Chen Z, Wang Y, He P, Liu P, Li L, Peng S, Xu F, Wang J, Zhang H, Wang L. Construction of ceRNA network mediated by circRNAs screening from microarray and identification of novel biomarkers for myasthenia gravis. Gene 2024; 918:148463. [PMID: 38631652 DOI: 10.1016/j.gene.2024.148463] [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: 12/19/2023] [Revised: 04/03/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Recent studies have revealed that circRNA can serve as ceRNA to participate in multiple autoimmune diseases. Our study aims to explore the key circRNA as ceRNA and biomarker for MG. METHODS We used circRNA microarray to explore differentially expressed circRNAs (DECs) from MG and compare with control. Then, we predicted the target miRNA associated with DECs and screened miRNAs by the algorithm of random walk with restart (RWR). Next, we constructed the circRNA-miRNA-mRNA ceRNA regulated network (CMMC) to identify the hub objects. Following, we detected the expression of hub-circRNAs by RT-PCR. We verify has_circ_0004183 (circFRMD4) sponging miR-145-5p regulate cells proliferation using luciferase assay and CCK-8. RESULTS We found that the expression level of circFRMD4 and has_circ_0035381 (circPIGB) were upregulated and has_circ_0089153(circ NUP214) had the lowest expression level in MG. Finally, we proved circFRMD4 sponging miR-145-5p regulate Jurkat cells proliferation. CircFRMD4 take part in the genesis and development of MG via circFRMD4/miR145-5p axis. CONCLUSIONS We found that circFRMD4, circPIGB and circNUP214 can be considered as valuable potential novel biomarkers for AchR + MG. CircFRMD4 participate in the development of AchR + MG via targeting binding with miR-145-5p.
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Affiliation(s)
- Xiaotong Kong
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Tao Wu
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hanlu Cai
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Zhimin Chen
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China; Department of Neurology, The Second Hospital of Harbin, Harbin, Heilongjiang Province, China
| | - Yu Wang
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Ping He
- Department of Neurology, The First Hospital of Harbin, Harbin, Heilongjiang Province, China
| | - Peifang Liu
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Lei Li
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Shanshan Peng
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Fanfan Xu
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Jianjian Wang
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Huixue Zhang
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China.
| | - Lihua Wang
- Department of Neurology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China.
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Zhu M, Wang Y, Xu X, Guo X, Mao Y, Gao F. Small extracellular vesicle microRNAs in pediatric myasthenia gravis plasma and skeletal muscle. Postgrad Med J 2024; 100:488-495. [PMID: 38449066 DOI: 10.1093/postmj/qgae015] [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: 09/09/2023] [Revised: 12/31/2023] [Accepted: 01/05/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND The diagnosis of myasthenia gravis (MG) in children remains difficult. Circulating small extracellular vesicle (sEV)-derived miRNAs (sEV-miRNAs) have been recognized as biomarkers of various diseases and can be excreted by different cell types. These biomarker candidates also play a vital role in autoimmune diseases via intercellular communication. METHODS In the present study, we used sEV isolation and purification methods to extract the plasma-derived sEV-miRNAs from children with MG and healthy controls. A small RNA sequencing analysis confirmed the miRNA expression features in plasma-derived sEVs from MG patients. The miRNA expression analysis in vitro was determined using microarray analysis. The enrichment and network analyses of altered sEV-miRNAs were performed using miRNA databases and Database for Annotation, Visualization, and Integrated Discovery website. Quantitative real-time polymerase chain reaction was performed for validation of sEV-miRNA. The diagnostic power of altered sEV-miRNAs was evaluated using receiver operating characteristic curve analyses. RESULTS Twenty-four sEV-miRNAs with altered expression level were identified between groups by DESeq2 method. The miRNAs were extracted from the sEVs, which were isolated from human primary skeletal muscle cell culture treated with mAb198. The target genes and enriched pathways of sEV-miRNAs partially overlapped between cell supernatant and plasma samples. The significantly downregulated miR-143-3p was validated in quantitative real-time polymerase chain reaction analysis. CONCLUSIONS For the first time, we report that plasma-derived sEV-miRNAs may act as novel circulating biomarkers and therapeutic targets in pediatric MG.
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Affiliation(s)
- Mengying Zhu
- Department of Neurology, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
- National Clinical Research Center for Child Health, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
| | - Yilong Wang
- Department of Neurology, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
- National Clinical Research Center for Child Health, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
| | - Xuebin Xu
- National Clinical Research Center for Child Health, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
| | - Xiaotong Guo
- National Clinical Research Center for Child Health, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
| | - Yuchen Mao
- National Clinical Research Center for Child Health, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
| | - Feng Gao
- Department of Neurology, Children's Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou 310052, China
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Chang M, Gao H, Li Y, Ding C, Lu Z, Li D, Huang F, Chen J, Sun F. Identification and analysis of MSC-Exo-derived LncRNAs related to the regulation of EMT in hypospadias. BMC Med Genomics 2024; 17:87. [PMID: 38627703 PMCID: PMC11020336 DOI: 10.1186/s12920-024-01869-9] [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: 11/04/2023] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
OBJECTIVE This study aims to screen the differentially expressed long non-coding RNAs (DELncRNAs) related to the regulation of epithelial-mesenchymal transition (EMT) in hypospadias in mesenchymal stem cell-derived exosomes (MSC-Exons) and explore the potential mechanism of these lncRNAs for the EMT in hypospadias. METHODS In this study, the microarray data related to MSC-Exos and hypospadias were downloaded from Gene Expression Omnibus (GEO). Besides, the lncRNAs highly expressed in MSC-Exos and the differentially expressed mRNAs and lncRNAs in children with hypospadias were screened, respectively. In addition, the lncRNAs enriched in MSC-Exos and differentially expressed lncRNAs in hypospadias were intersected to obtain the final DElncRNAs. Moreover, the co-expression interaction pairs of differentially expressed lncRNAs and mRNAs were analyzed to construct a Competing Endogenous RNA (ceRNA) network. Finally, the candidate lncRNAs in exosomes were subjected to in vitro cell function verification. RESULTS In this study, a total of 4 lncRNAs were obtained from the microarray data analysis. Further, a ceRNA regulatory network of MSC-Exo-derived lncRNAs related to the regulation of EMT in hypospadias was constructed, including 4 lncRNAs, 2 mRNAs, and 6 miRNAs. The cell function verification results indicated that the exosomes secreted by MSCs may transport HLA complex group 18 (HCG18) into target cells, which promoted the proliferation, migration, and EMT of these cells. CONCLUSION MSC-Exo-derived lncRNA HCG18 can enter target cells, and it may be involved in the regulation of EMT in hypospadias through the ceRNA network.
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Affiliation(s)
- Mengmeng Chang
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Hongjie Gao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Yingying Li
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
| | - Chen Ding
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Zhiyi Lu
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Ding Li
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Fan Huang
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Jiawei Chen
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China.
| | - Fengyin Sun
- Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, China.
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Wang B, Zhu Y, Liu D, Hu C, Zhu R. The intricate dance of non-coding RNAs in myasthenia gravis pathogenesis and treatment. Front Immunol 2024; 15:1342213. [PMID: 38605954 PMCID: PMC11007667 DOI: 10.3389/fimmu.2024.1342213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/11/2024] [Indexed: 04/13/2024] Open
Abstract
Myasthenia gravis (MG) stands as a perplexing autoimmune disorder affecting the neuromuscular junction, driven by a multitude of antibodies targeting postsynaptic elements. However, the mystery of MG pathogenesis has yet to be completely uncovered, and its heterogeneity also challenges diagnosis and treatment. Growing evidence shows the differential expression of non-coding RNAs (ncRNAs) in MG has played an essential role in the development of MG in recent years. Remarkably, these aberrantly expressed ncRNAs exhibit distinct profiles within diverse clinical subgroups and among patients harboring various antibody types. Furthermore, they have been implicated in orchestrating the production of inflammatory cytokines, perturbing the equilibrium of T helper 1 cells (Th1), T helper 17 cells (Th17), and regulatory T cells (Tregs), and inciting B cells to generate antibodies. Studies have elucidated that certain ncRNAs mirror the clinical severity of MG, while others may hold therapeutic significance, showcasing a propensity to return to normal levels following appropriate treatments or potentially foretelling the responsiveness to immunosuppressive therapies. Notably, the intricate interplay among these ncRNAs does not follow a linear trajectory but rather assembles into a complex network, with competing endogenous RNA (ceRNA) emerging as a prominent hub in some cases. This comprehensive review consolidates the landscape of dysregulated ncRNAs in MG, briefly delineating their pivotal role in MG pathogenesis. Furthermore, it explores their promise as prospective biomarkers, aiding in the elucidation of disease subtypes, assessment of disease severity, monitoring therapeutic responses, and as novel therapeutic targets.
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Affiliation(s)
| | | | | | | | - Ruixia Zhu
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
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Luo Y, Jiang Y, Zhong T, Li Z, He J, Li X, Cui K. LncRNA HCG18 affects diabetic cardiomyopathy and its association with miR-9-5p/IGF2R axis. Heliyon 2024; 10:e24604. [PMID: 38322876 PMCID: PMC10845250 DOI: 10.1016/j.heliyon.2024.e24604] [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: 04/07/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 02/08/2024] Open
Abstract
This paper aimed to investigate the role of lncRNA HCG18 (HCG18) in the progression of diabetic cardiomyopathy (DCM) and potential mechanisms. Streptozocin (STZ) was used to induce DCM model in rats, which was confirmed by blood glucose concentration, body weight, and HE staining. Myocardial apoptosis was detected by TUNEL. H9c2 cardiomyocytes were used to construct cell models of DCM through treatment of high glucose. The results showed that HCG18 was overexpressed in STZ induced DCM rat model and high glucose induced H9c2 cardiomyocytes. Si-HCG18 significantly increased cell viability, reduced cell apoptosis, attenuated activities of myocardial enzymes and enhanced activities of antioxidant enzymes in STZ induced DM model and high glucose induced H9c2 cardiomyocytes, while the results of upregulation of HCG18, in high glucose induced H9c2 cardiomyocytes, were opposite with that of si-HCG18. MiR-9-5p was a target of HCG18, and which was down-regulated in cardiomyocytes of DCM. The overexpression of miR-9-5p could neutralize the high glucose induced cardiomyocyte injury, and the silence of miR-9-5p could reverse the effect of si-HCG18 on high glucose induced cardiomyocytes. MiR-9-5p could directly target to IGF2R, and IGF2R was overexpressed in cardiomyocytes of DCM. Up-regulation of IGF2R can reverse the protective effect of si-HCG18 on cardiomyocytes. Taken together, HCG18 is significantly increased in cardiomyocytes of DCM. Down-regulation of HCG18 can improve cardiomyocyte injury through miR-9-5p/IGF2R axis in DCM.
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Affiliation(s)
- Yuhui Luo
- Department of Cardiology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, 40013, China
| | - Yi Jiang
- Department of Geriatrics, Chongqing Emergency Medical Center, Central Hospital of Chongqing University, Chongqing, 40013, China
| | - Tingting Zhong
- Department of Cardiology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, 40013, China
| | - Zhenggong Li
- Department of Cardiology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, 40013, China
| | - Jia He
- Department of Echocardiogram, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, 40013, China
| | - Xiaoli Li
- Department of Cardiology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, 40013, China
| | - Kun Cui
- Department of Cardiology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, 40013, China
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Yang S, Wang X, Zhou X, Hou L, Wu J, Zhang W, Li H, Gao C, Sun C. ncRNA-mediated ceRNA regulatory network: Transcriptomic insights into breast cancer progression and treatment strategies. Biomed Pharmacother 2023; 162:114698. [PMID: 37060661 DOI: 10.1016/j.biopha.2023.114698] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/06/2023] [Accepted: 04/10/2023] [Indexed: 04/17/2023] Open
Abstract
With the rapid development of next-generation sequencing technology, several studies have shown that ncRNAs can act as competitive endogenous RNAs (ceRNAs) and are involved in various biological processes, such as proliferation, differentiation, apoptosis, and migration of breast cancer (BC) cells, and plays an important role in BC progression as a molecular target for its diagnosis, treatment, prognosis, and differentiation of subtypes and age groups of BC patients. Based on the description of ceRNA-related biological functions, this study screened and sorted the sequencing analysis and experimental verification conclusions of BC-related ceRNAs and found that the ncRNAs mediated ceRNA networks can promote the development of BC by promoting the expression of genes related to BC proliferation, drug resistance, and apoptosis, inducing the production of epithelial-mesenchymal transition (EMT) to promote metastasis and activating cancer-related signaling pathways.
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Affiliation(s)
- Shu Yang
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
| | - Xiaomin Wang
- Special Medicine Department, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xintong Zhou
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lin Hou
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
| | - Jibiao Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wenfeng Zhang
- School of Traditional Chinese Medicine, Macau University of Science and Technology, Macao Special Administrative Region, China
| | - Huayao Li
- College of Chinese Medicine, Weifang Medical University, Weifang, China
| | - Chundi Gao
- College of Chinese Medicine, Weifang Medical University, Weifang, China
| | - Changgang Sun
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China; College of Chinese Medicine, Weifang Medical University, Weifang, China.
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The role of long non-coding RNA HCG18 in cancer. Clin Transl Oncol 2023; 25:611-619. [PMID: 36346572 DOI: 10.1007/s12094-022-02992-8] [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: 07/23/2022] [Accepted: 10/23/2022] [Indexed: 11/10/2022]
Abstract
The incidence of cancer is increasing worldwide and is becoming the most common cause of death. Identifying new biomarkers for cancer diagnosis and prognosis is important for developing cancer treatment strategies and reducing mortality. Long non-coding RNAs (lncRNAs) are non-coding, single-stranded RNAs that play an important role as oncogenes or tumor suppressors in the occurrence and development of human tumors. Abnormal expression of human leukocyte antigen complex group 18 (HCG18) is observed in many types of cancer, and its imbalance is closely related to cancer progression. HCG18 regulates cell proliferation, invasion, metastasis, and anti-apoptosis through a variety of mechanisms. Therefore, HCG18 is a potential tumor biomarker and therapeutic target. However, the therapeutic significance of HCG18 has not been well studied, and future research may develop new intervention strategies to combat cancer. In this study, we reviewed the biological function, mechanism, and potential clinical significance of HCG18 in various cancers to provide a reference for future research.
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NUP160 knockdown inhibits the progression of diabetic nephropathy in vitro and in vivo. Regen Ther 2022; 21:87-95. [PMID: 35785044 PMCID: PMC9234011 DOI: 10.1016/j.reth.2022.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/20/2022] [Accepted: 05/26/2022] [Indexed: 12/02/2022] Open
Abstract
Diabetic nephropathy (DN) is a severe diabetic complication and podocyte damage is a hallmark of DN. The Nucleoporin 160 (NUP160) gene was demonstrated to regulate cell proliferation and apoptosis in mouse podocytes. This study explored the possible role and mechanisms of NUP160 in high glucose-triggered podocyte injury. A rat model of DN was established by intraperitoneal injection of 60 mg/kg streptozotocin (STZ). Podocytes were treated with 33 mM high glucose. The effects of the Nup160 on DN and its mechanisms were assessed using MTT, flow cytometry, Western blot, ELISA, RT-qPCR, and luciferase reporter assays. The in vivo effects of NUP160 were analyzed by HE, PAS, and MASSON staining assays. The NUP160 level was significantly upregulated in podocytes treated with 33 mM high glucose. Functionally, NUP160 knockdown alleviated high glucose-induced apoptosis and inflammation in podocytes. Mechanistically, miR-495-3p directly targeted NUP160, and lncRNA HCG18 upregulated NUP160 by sponging miR-495-3p by acting as a ceRNA. Additionally, NUP160 overexpression reversed the effects of HCG18 knockdown in high glucose treated-podocytes. The in vivo assays indicated that NUP160 knockdown alleviated the symptoms of DN rats. NUP160 knockdown plays a key role in preventing the progression of DN, suggesting that targeting NUP160 may be a potential therapeutic strategy for DN treatment.
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Li D, Li L, Quan F, Wang T, Xu S, Li S, Tian K, Feng M, He N, Tian L, Chen B, Zhang H, Wang L, Wang J. Identification of circulating immune landscape in ischemic stroke based on bioinformatics methods. Front Genet 2022; 13:921582. [PMID: 35957686 PMCID: PMC9358692 DOI: 10.3389/fgene.2022.921582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/06/2022] [Indexed: 11/19/2022] Open
Abstract
Ischemic stroke (IS) is a high-incidence disease that seriously threatens human life and health. Neuroinflammation and immune responses are key players in the pathophysiological processes of IS. However, the underlying immune mechanisms are not fully understood. In this study, we attempted to identify several immune biomarkers associated with IS. We first retrospectively collected validated human IS immune-related genes (IS-IRGs) as seed genes. Afterward, potential IS-IRGs were discovered by applying random walk with restart on the PPI network and the permutation test as a screening strategy. Doing so, the validated and potential sets of IS-IRGs were merged together as an IS-IRG catalog. Two microarray profiles were subsequently used to explore the expression patterns of the IS-IRG catalog, and only IS-IRGs that were differentially expressed between IS patients and controls in both profiles were retained for biomarker selection by the Random Forest rankings. CLEC4D and CD163 were finally identified as immune biomarkers of IS, and a classification model was constructed and verified based on the weights of two biomarkers obtained from the Neural Network algorithm. Furthermore, the CIBERSORT algorithm helped us determine the proportions of circulating immune cells. Correlation analyses between IS immune biomarkers and immune cell proportions demonstrated that CLEC4D was strongly correlated with the proportion of neutrophils (r = 0.72). These results may provide potential targets for further studies on immuno-neuroprotection therapies against reperfusion injury.
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Affiliation(s)
- Danyang Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lifang Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fei Quan
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Tianfeng Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Si Xu
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shuang Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Kuo Tian
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Meng Feng
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ni He
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Liting Tian
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Biying Chen
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huixue Zhang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Huixue Zhang, ; Lihua Wang, ; Jianjian Wang,
| | - Lihua Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Huixue Zhang, ; Lihua Wang, ; Jianjian Wang,
| | - Jianjian Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Huixue Zhang, ; Lihua Wang, ; Jianjian Wang,
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Wang X, Ren L, Chen S, Tao Y, Zhao D, Wu C. Long non-coding RNA MIR4435-2HG/microRNA-125a-5p axis is involved in myocardial ischemic injuries. Bioengineered 2022; 13:10707-10720. [PMID: 35475469 PMCID: PMC9208505 DOI: 10.1080/21655979.2022.2051259] [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] [Indexed: 11/02/2022] Open
Abstract
This study aimed to investigate whether and how long non-coding RNA (lncRNA) MIR4435-2 host gene (MIR4435-2HG) involved in acute myocardial ischemia/reperfusion (I/R). Blood samples were collected from acute myocardial infarction (AMI) patients to detect MIR4435-2HG expression. In vivo myocardial I/R mice model and in vitro H2O2-induced oxidative stress model were established. Echocardiography, TUNEL assay and lactate dehydrogenase (LDH) detection were performed to assess heart infarction and myocardium apoptosis. Relationship among microRNA-125a-5p (miR-125a-5p), MIR4435-2HG and Mitochondrial fission protein 1 (MTFP1) was predicted by Targetscan and verified by luciferase reporter assay. MIR4435-2HG was notably upregulated in AMI patients, myocardial I/R mice and H2O2-treated cells. Knockdown of MIR4435-2HG notably alleviated infraction volume, ejection fraction (EF) and fractional shortening (FS) levels, cell apoptosis portion and pro-apoptotic cleaved-caspase-3 and Cyt c expression caused by myocardial I/R and oxidative stress, as well as improved cardiomyocytes viability. Transfection with miR-125a-5p alleviated MIR4435-2HG-caused cardiomyocytes apoptosis during oxidative stress. MiR-125a-5p overexpression decreased luciferase activity of the wild-type MIR4435-2HG compared with the mutated MIR4435-2HG. The expression levels of MTFP1 were elevated in myocardium from MI mice model and H2O2-treated AC16 cardiomyocytes. In addition, miR-125a-5p overexpression inhibited MTFP1 expression, and could stimulate the wild-type MTFP1 promoter luciferase activity but not the mutated one. Our findings revealed the role of MIR4435-2HG in MI-induced myocardium injury and cardiomyocytes apoptosis, disclosed a novel MIR4435-2HG/miR-125a-5p regulatory axis during myocardial I/R, and thus identified a potential target for the therapy of myocardial IR injury.
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Affiliation(s)
- Xiuling Wang
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang110001, Liaoning Province, China
| | - Lina Ren
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang110001, Liaoning Province, China
| | - Shuai Chen
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang110001, Liaoning Province, China
| | - Yanli Tao
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang110001, Liaoning Province, China
| | - Dandan Zhao
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang110001, Liaoning Province, China
| | - Chunwei Wu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang110001, Liaoning Province, China
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