1
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Abdellaoui N, Kim SY, Kim MS. Effect of TRAF6-knockout on gene expression and lncRNA expression in Epithelioma papulosum cyprini (EPC) cells. Anim Cells Syst (Seoul) 2023; 27:197-207. [PMID: 37808550 PMCID: PMC10552615 DOI: 10.1080/19768354.2023.2263070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/20/2023] [Indexed: 10/10/2023] Open
Abstract
TRAF6 is a key immune gene that plays a significant role in toll-like receptor signal transduction and activates downstream immune genes involved in antiviral immunity in fish. To explore the role of TRAF6 in Epithelioma papulosum cyprini (EPC) cells, we knocked out the TRAF6 gene using the Clustered Regularly Interspaced Short Palindromic Repeats-Cas9 (CRISPR-Cas9) technique and then analyzed the transcriptomes of the knockout cells. In this study, we identified that 232 transcripts were differentially expressed in naive cells. Using the pipeline, we identified 381 novel lncRNAs in EPC cells, 23 of which were differentially expressed. Gene Ontology enrichment analysis demonstrated that differentially expressed genes (DEG) are implicated in various immune processes, such as neutrophil chemotaxis and mitogen-activated protein kinase binding. In addition, the KEGG pathway analysis revealed enrichment in immune-related pathways (Interleukin-17 signaling pathway, cytokine-cytokine receptor interaction, and TNF signaling pathway). Furthermore, the target genes of the differentially expressed lncRNAs were implicated in the negative regulation of interleukin-6 and tumor necrosis factor production. These results indicate that lncRNAs and protein-coding genes participate in the regulation of immune and metabolic processes in fish.
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Affiliation(s)
- Najib Abdellaoui
- Department of Biological Sciences, Kongju National University, Gongju, South Korea
| | - Seon Young Kim
- Department of Biological Sciences, Kongju National University, Gongju, South Korea
| | - Min Sun Kim
- Department of Biological Sciences, Kongju National University, Gongju, South Korea
- BK21 Team for Field-oriented BioCore Human Resources Development, Kongju National University, Gongju, South Korea
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2
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Lu D, Liao J, Cheng H, Ma Q, Wu F, Xie F, He Y. Construction and systematic evaluation of a machine learning-based cuproptosis-related lncRNA score signature to predict the response to immunotherapy in hepatocellular carcinoma. Front Immunol 2023; 14:1097075. [PMID: 36761763 PMCID: PMC9905126 DOI: 10.3389/fimmu.2023.1097075] [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: 11/13/2022] [Accepted: 01/12/2023] [Indexed: 01/26/2023] Open
Abstract
Introduction Hepatocellular carcinoma (HCC) is a common malignant cancer with a poor prognosis. Cuproptosis and associated lncRNAs are connected with cancer progression. However, the information on the prognostic value of cuproptosis-related lncRNAs is still limited in HCC. Methods We isolated the transcriptome and clinical information of HCC from TCGA and ICGC databases. Ten cuproptosis-related genes were obtained and related lncRNAs were correlated by Pearson's correlation. By performing lasso regression, we created a cuproptosis-related lncRNA prognostic model based on the cuproptosis-related lncRNA score (CLS). Comprehensive analyses were performed, including the fields of function, immunity, mutation and clinical application, by various R packages. Results Ten cuproptosis-related genes were selected, and 13 correlated prognostic lncRNAs were collected for model construction. CLS was positively or negatively correlated with cancer-related pathways. In addition, cell cycle and immune related pathways were enriched. By performing tumor microenvironment (TME) analysis, we determined that T-cells were activated. High CLS had more tumor characteristics and may lead to higher invasiveness and treatment resistance. Three genes (TP53, CSMD1 and RB1) were found in high CLS samples with more mutational frequency. More amplification and deletion were detected in high CLS samples. In clinical application, a CLS-based nomogram was constructed. 5-Fluorouracil, gemcitabine and doxorubicin had better sensitivity in patients with high CLS. However, patients with low CLS had better immunotherapeutic sensitivity. Conclusion We created a prognostic CLS signature by machine learning, and we comprehensively analyzed the signature in the fields of function, immunity, mutation and clinical application.
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Affiliation(s)
- Dingyu Lu
- Oncology Department, Deyang People’s Hospital, Deyang, China
| | - Jian Liao
- Intensive care Unit, Deyang People’s Hospital, Deyang, China
| | - Hao Cheng
- Oncology Department, Deyang People’s Hospital, Deyang, China
| | - Qian Ma
- Oncology Department, Deyang People’s Hospital, Deyang, China
| | - Fei Wu
- Oncology Department, Deyang People’s Hospital, Deyang, China
| | - Fei Xie
- Oncology Department, Deyang People’s Hospital, Deyang, China
| | - Yingying He
- Oncology Department, Deyang People’s Hospital, Deyang, China
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3
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Han H, Wang X, Li W, Liu J, Fan Y, Zhang H, Yang J, Gao Y, Liu Y. Identification and Characterization of lncRNAs Expression Profile Related to Goat Skeletal Muscle at Different Development Stages. Animals (Basel) 2022; 12:ani12192683. [PMID: 36230427 PMCID: PMC9558979 DOI: 10.3390/ani12192683] [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: 08/24/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 11/24/2022] Open
Abstract
LncRNAs are essential for regulating skeletal muscle. However, the expression profile and function of lncRNAs in goat muscle remains unclear. Here, an average of ~14.58 Gb high-quality reads were obtained from longissimus dorsi tissues of 1-month-old (n = 3) and 9-month-old (n = 3) Wu'an black goats using RNA sequencing. Of a total of 3441 lncRNAs, 1281 were lincRNAs, 805 were antisense lncRNAs, and 1355 were sense_overlapping lncRNAs. These lncRNAs shared some properties with goats, such as fewer exons, shorter transcript, and open reading frames (ORFs) length. Among them, 36 differentially expressed lncRNAs (DE lncRNA) were identified, and then 10 random lncRNAs were validated by RT-qPCR. Furthermore, 30 DE lncRNAs were neighboring 71 mRNAs and several genes were functionally enriched in muscle development-related pathways, such as APC, IFRD1, NKX2-5, and others. Additionally, 36 DE lncRNAs and 2684 mRNAs were included in co-expression interactions. A lncRNA-miRNA-mRNA network containing 4 lncRNAs, 3 miRNAs, and 8 mRNAs was finally constructed, of which XR_001296113.2 might regulate PDLIM7 expression by interaction with chi-miR-1296 to affect skeletal muscle development. This study revealed the expression profile of goat lncRNAs for further investigative studies and provides a fuller understanding of skeletal muscle development.
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Affiliation(s)
- Haiyin Han
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
| | - Xianwei Wang
- Henan Animal Husbandry Service, Zhengzhou 450046, China
| | - Wentao Li
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
| | - Jiannan Liu
- School of Landscape and Ecological Engineering, Hebei University of Engineering, Handan 056021, China
| | - Yekai Fan
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
| | - Hui Zhang
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
| | - Junqi Yang
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
| | - Yahui Gao
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
- Correspondence: (Y.G.); (Y.L.); Tel./Fax: +86-0310-8573021 (Y.G.); +86-0310-8573009 (Y.L.)
| | - Yufang Liu
- School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056021, China
- Correspondence: (Y.G.); (Y.L.); Tel./Fax: +86-0310-8573021 (Y.G.); +86-0310-8573009 (Y.L.)
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4
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Luo D, Salai A, Lv H, Wang Y, Gao Y. FOXD2-AS1 acts an oncogene in esophageal squamous cell carcinoma through sponging miR-204-3p. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2022; 24:1954-1963. [PMID: 35778646 DOI: 10.1007/s12094-022-02850-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/28/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE A growing number of evidences has revealed that long non-coding RNAs (lncRNAs) have vital effect in the pathogenesis of esophageal squamous cell carcinoma (ESCC). In our work, we found that lncRNA FOXD2 adjacent opposite strand RNA 1 (FOXD2-AS1) was significantly increased in clinical ESCC samples and cell lines. METHODS The biological effect of FOXD2-AS1 on EC109 and KYSE150 cells showed that the low expression of FOXD2-AS1 inhibited the proliferation through CCK8 and colony formation assays, invasion by transwell chamber test, migration abilities by wound healing assay, and enhance apoptosis rates by flow cytometry assay. RESULTS Through bioinformatics analysis and luciferase reporter assays, microRNA (miR)-204-3p was proved to be a target of FOXD2-AS1. We further confirmed that FOXD2-AS1 was the upstream inhibitor of miR-204-3p and the down-regulation of miR-204-3p reversed the repressive effects of low expression of FOXD2-AS1 on ESCC progression. In addition, inhibition of FOXD2-AS1 effectively suppressed the tumor growth. CONCLUSIONS In general, our results suggested that FOXD2-AS1 may be of vital therapeutic importance for the treatment of ESCC patients.
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Affiliation(s)
- Dongbo Luo
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Suzhou Street 789, Ürümqi, 830011, China.
| | - Adili Salai
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Suzhou Street 789, Ürümqi, 830011, China
| | - Hongbo Lv
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Suzhou Street 789, Ürümqi, 830011, China
| | - Yang Wang
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Suzhou Street 789, Ürümqi, 830011, China
| | - Yunfei Gao
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Suzhou Street 789, Ürümqi, 830011, China
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Luo Y, Han S, Yan B, Ji H, Zhao L, Gladkich J, Herr I. UHMK1 Is a Novel Marker for Personalized Prediction of Pancreatic Cancer Prognosis. Front Oncol 2022; 12:834647. [PMID: 35359403 PMCID: PMC8960145 DOI: 10.3389/fonc.2022.834647] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/16/2022] [Indexed: 11/13/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is among the leading causes of cancer mortality, and new therapeutic options are urgently needed. Long noncoding RNA H19 (H19) is known to promote PDAC progression, but the downstream genes of H19 are largely unknown. Five PDAC cell lines, nonmalignant pancreatic cells, TCGA, GEO-derived pancreatic tissues (malignant, n=413; nonmalignant, n=234), a pancreatic tissue array (n=96), and pancreatic tissues from our clinic (malignant, n=20; nonmalignant, n=20) were examined by a gene array, RT-qPCR, Western blotting, MTT, colony formation, wound-healing, siRNA-mediated gene silencing, bioinformatics, xenotransplantation, and immunohistochemistry assays. The cell cycle inhibitor, UHMK1, was identified to have the strongest correlation with H19. UHMK1 expression was enhanced in PDAC, and high UHMK1 expression correlated with tumor stage, and lower overall survival. siRNA-mediated UHMK1 downregulation inhibited progression signaling. siRNA-mediated downregulation of H19 or UHMK1 inhibited tumor proliferation and xenograft growth. Based on the correlation between UHMK1 expression and clinical parameters, we developed a nomogram that reliably predicts patient prognosis and overall survival. Together, we characterized UHMK1 as an H19-induced oncogene and verified it as a novel PDAC prognostic marker for overall survival.
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6
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Shan K, Qiu J, Zhou R, Gu J, Zhang X, Zhang C, Xiang J, Xu J. RNA-seq identifies long non-coding RNAs as potential therapeutic targets for human corneal endothelial dysfunction under oxidative stress. Exp Eye Res 2021; 213:108820. [PMID: 34728181 DOI: 10.1016/j.exer.2021.108820] [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: 09/12/2021] [Revised: 10/23/2021] [Accepted: 10/28/2021] [Indexed: 11/15/2022]
Abstract
Human corneal endothelial cells (CECs) have limited ability to regenerate in vivo. Oxidative stress has been proposed as one potential reason. Understanding the mechanism of oxidative stress-induced CEC dysfunction might provide novel targets for improving CEC regenerative capacity, and help develop non-surgical therapeutic strategies for CEC dysfunction. Long non-coding RNAs (lncRNAs) are non-coding transcripts with multiple biological functions. The roles of lncRNAs in ocular cells under oxidative stress have been widely studied, such as lens epithelial cells, trabecular meshwork cells, and retinal ganglion cells. In the current study, we established oxidative stress-induced CEC dysfunction model in vitro. By RNA sequencing technology, we identified 824 differentially expressed lncRNAs in CEC dysfunction group, including 667 upregulated lncRNAs and 157 downregulated lncRNAs. We finally demonstrated that CEC functions under oxidative stress, including cellular proliferation, apoptosis, and anti-oxidative stress ability, could be regulated by different lncRNAs, including lncRNA-Z93241.1, lncRNA-XLOC_000818, and lncRNA-AC007952.4. Targeting these lncRNAs might be useful to further elucidate the pathology of CEC dysfunction and develop novel therapeutic strategy.
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Affiliation(s)
- Kun Shan
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China
| | - Jini Qiu
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China
| | - Rongmei Zhou
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China
| | - Jiayu Gu
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xueling Zhang
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China
| | - Chaoran Zhang
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China
| | - Jun Xiang
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China.
| | - Jianjiang Xu
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, China.
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7
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Asadi MR, Hassani M, Kiani S, Sabaie H, Moslehian MS, Kazemi M, Ghafouri-Fard S, Taheri M, Rezazadeh M. The Perspective of Dysregulated LncRNAs in Alzheimer's Disease: A Systematic Scoping Review. Front Aging Neurosci 2021; 13:709568. [PMID: 34621163 PMCID: PMC8490871 DOI: 10.3389/fnagi.2021.709568] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/12/2021] [Indexed: 12/22/2022] Open
Abstract
LncRNAs act as part of non-coding RNAs at high levels of complex and stimulatory configurations in basic molecular mechanisms. Their extensive regulatory activity in the CNS continues on a small scale, from the functions of synapses to large-scale neurodevelopment and cognitive functions, aging, and can be seen in both health and disease situations. One of the vast consequences of the pathological role of dysregulated lncRNAs in the CNS due to their role in a network of regulatory pathways can be manifested in Alzheimer's as a neurodegenerative disease. The disease is characterized by two main hallmarks: amyloid plaques due to the accumulation of β-amyloid components and neurofibrillary tangles (NFT) resulting from the accumulation of phosphorylated tau. Numerous studies in humans, animal models, and various cell lines have revealed the role of lncRNAs in the pathogenesis of Alzheimer's disease. This scoping review was performed with a six-step strategy and based on the Prisma guideline by systematically searching the publications of seven databases. Out of 1,591 records, 69 articles were utterly aligned with the specified inclusion criteria and were summarized in the relevant table. Most of the studies were devoted to BACE1-AS, NEAT1, MALAT1, and SNHG1 lncRNAs, respectively, and about one-third of the studies investigated a unique lncRNA. About 56% of the studies reported up-regulation, and 7% reported down-regulation of lncRNAs expressions. Overall, this study was conducted to investigate the association between lncRNAs and Alzheimer's disease to make a reputable source for further studies and find more molecular therapeutic goals for this disease.
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Affiliation(s)
- Mohammad Reza Asadi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Hassani
- Student Research Committee, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Shiva Kiani
- Department of Molecular Genetics, School of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hani Sabaie
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marziyeh Sadat Moslehian
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Kazemi
- Department of Social Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezazadeh
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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8
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Bhattacharyya N, Pandey V, Bhattacharyya M, Dey A. Regulatory role of long non coding RNAs (lncRNAs) in neurological disorders: From novel biomarkers to promising therapeutic strategies. Asian J Pharm Sci 2021; 16:533-550. [PMID: 34849161 PMCID: PMC8609388 DOI: 10.1016/j.ajps.2021.02.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/28/2021] [Accepted: 02/18/2021] [Indexed: 01/12/2023] Open
Abstract
Long non coding RNAs (lncRNAs) are non-protein or low-protein coding transcripts that contain more than 200 nucleotides. They representing a large share of the cell's transcriptional output, demonstrate functional attributes viz. tissue-specific expression, determination of cell fate, controlled expression, RNA processing and editing, dosage compensation, genomic imprinting, conserved evolutionary traits etc. These long non coding variants are well associated with pathogenicity of various diseases including the neurological disorders like Alzheimer's disease, schizophrenia, Huntington's disease, Parkinson's disease etc. Neurological disorders are widespread and there knowing the underlying mechanisms become crucial. The lncRNAs take part in the pathogenesis by a plethora of mechanisms like decoy, scaffold, mi-RNA sequestrator, histone modifiers and in transcriptional interference. Detailed knowledge of the role of lncRNAs can help to use them further as novel biomarkers for therapeutic aspects. Here, in this review we discuss regulation and functional roles of lncRNAs in eight neurological diseases and psychiatric disorders, and the mechanisms by which they act. With these, we try to establish their roles as potential markers and viable diagnostic tools in these disorders.
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Affiliation(s)
| | - Vedansh Pandey
- Department of Life Sciences, Presidency University, Kolkata, India
| | | | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata, India
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9
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Zhang S, Duan J, Du Y, Xie J, Zhang H, Li C, Zhang W. Long Non-coding RNA Signatures Associated With Liver Aging in Senescence-Accelerated Mouse Prone 8 Model. Front Cell Dev Biol 2021; 9:698442. [PMID: 34368149 PMCID: PMC8339557 DOI: 10.3389/fcell.2021.698442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/29/2021] [Indexed: 01/10/2023] Open
Abstract
The liver is sensitive to aging because the risk of hepatopathy, including fatty liver, hepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma, increases dramatically with age. Long non-coding RNAs (lncRNAs) are >200 nucleotides long and affect many pathological and physiological processes. A potential link was recently discovered between lncRNAs and liver aging; however, comprehensive and systematic research on this topic is still limited. In this study, the mouse liver genome-wide lncRNA profiles of 8-month-old SAMP8 and SAMR1 models were explored through deep RNA sequencing. A total of 605,801,688 clean reads were generated. Among the 2,182 identified lncRNAs, 28 were differentially expressed between SAMP8 and SAMR1 mice. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) surveys showed that these substantially dysregulated lncRNAs participated in liver aging from different aspects, such as lipid catabolic (GO: 0016042) and metabolic pathways. Further assessment was conducted on lncRNAs that are most likely to be involved in liver aging and related diseases, such as LNC_000027, LNC_000204E, NSMUST00000144661.1, and ENSMUST00000181906.1 acted on Ces1g. This study provided the first comprehensive dissection of lncRNA landscape in SAMP8 mouse liver. These lncRNAs could be exploited as potential targets for the molecular-based diagnosis and therapy of age-related liver diseases.
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Affiliation(s)
- Shuai Zhang
- International Cooperation Laboratory of Molecular Medicine, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Juanjuan Duan
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing, China
| | - Yu Du
- International Cooperation Laboratory of Molecular Medicine, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinlu Xie
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang, School of Medicine, Huzhou University, Huzhou Central Hospital, Huzhou, China
| | - Haijing Zhang
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing, China
| | - Changyu Li
- International Cooperation Laboratory of Molecular Medicine, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Wensheng Zhang
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing, China.,National and Local United Engineering Research Center for Panax Notoginseng Resources Protection and Utilization Technology, Kunming, China
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10
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Ma N, Pan J, Wen Y, Wu Q, Yu B, Chen X, Wan J, Zhang W. RETRACTED: circTulp4 functions in Alzheimer’s disease pathogenesis by regulating its parental gene, Tulp4. Mol Ther 2021; 29:2167-2181. [PMID: 33578037 PMCID: PMC8178447 DOI: 10.1016/j.ymthe.2021.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 12/20/2020] [Accepted: 02/04/2021] [Indexed: 01/04/2023] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Concern has been raised by a reader that research reported in the article duplicates figures and reuses data from prior publications without attribution. After investigation of the concerns raised, the editors found the following reuse of data without attribution: Figure 1B in this article is identical to Ma et al., 2020, FASEB J. 34, 10342–10356, https://doi.org/10.1096/fj.201903157R, Figure 2B. Figure 1D in this article is identical to Ma et al., 2019, Mol. Ther. Nucleic Acids 18, 1049–1062, https://doi.org/10.1016/j.omtn.2019.10.030, Figure 2A. Figure 1F in this article is identical to Ma et al., 2019, Mol. Ther. Nucleic Acids 18, 1049–1062, https://doi.org/10.1016/j.omtn.2019.10.030, Figure 2B. Figure 1A in this article reuses data from Ma et al., 2020, FASEB J. 34, 10342–10356, https://doi.org/10.1096/fj.201903157R, Figure 2E. Figure S1 in this article is identical to Ma et al., 2019, Mol. Ther. Nucleic Acids 18, 1049–1062, https://doi.org/10.1016/j.omtn.2019.10.030, Figure 3 One of the conditions of submission of a paper for publication is that authors declare explicitly that the paper has not been previously published and is not under consideration for publication elsewhere. As such this article represents a misuse of the scientific publishing system. The corresponding authors have agreed to the retraction.
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Affiliation(s)
- Nana Ma
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China; Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Beijing, China
| | - Jie Pan
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China; Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China
| | - Yi Wen
- Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Qi Wu
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China
| | - Bo Yu
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China; Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong Province, China
| | - Xi Chen
- Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Jun Wan
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China; Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China; Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong Province, China.
| | - Wei Zhang
- Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China; Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, China.
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11
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Exosomes and exosomal RNAs in breast cancer: A status update. Eur J Cancer 2021; 144:252-268. [DOI: 10.1016/j.ejca.2020.11.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 11/25/2020] [Indexed: 12/13/2022]
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12
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Zhao W, Ahmed S, Ahmed S, Yangliu Y, Wang H, Cai X. Analysis of long non-coding RNAs in epididymis of cattleyak associated with male infertility. Theriogenology 2020; 160:61-71. [PMID: 33181482 DOI: 10.1016/j.theriogenology.2020.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 09/07/2020] [Accepted: 10/26/2020] [Indexed: 02/08/2023]
Abstract
Cattleyak (CY), is a cross breed between cattle and yak (YK), which display equal adaptability to the harsh environment as YK and much higher performances than YK. However, the CY is female fertile and male sterile. Previous studies were conducted on testes tissues to investigate the mechanism of male infertility in CY. There is no systematic research on genes, especially lncRNAs between CY and YK epididymis. In this study, Illumina Hiseq was performed to profile the epididymis transcriptome (lncRNA and mRNA) of CY and YK. In total 18859 lncRNAs were identified, from which lincRNAs 12458, antisense lncRNAs 2345, intronic lncRNAs 3101, and sense lncRNAs 955 respectively. We have identified 345 DE lncRNAs and 3008 DE mRNAs between YK and CY epididymis. Thirteen DEGs were validated by quantitative real-time PCR. Combing with DEG, 14 couples of lncRNAs and their target genes were both DE, and 6 of them including CCDC39, KCNJ16, NECTIN2, MRPL20, PSMC4, and DEFB112 show their potential infertility-related terms such as cellular motility, sperm maturation, sperm storage, cellular junction, folate metabolism, and capacitation. On the other hand, several down-regulated genes such as DEFB124, DEFB126, DEFB125, DEFB127, DEFB129, CES5A, TKDP1, CST3, RNASE9 and CD52 in CY compared to YK were involved in the immune response and sperm maturation. Therefore, comprehensive analysis for lncRNAs and their target genes may enhance our understanding of the molecular mechanisms underlying the process of sperm maturation in CY and may provide important resources for further research.
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Affiliation(s)
- Wangsheng Zhao
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Saeed Ahmed
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Siraj Ahmed
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Yueling Yangliu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Hongmei Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Xin Cai
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu, Sichuan, 610041, China; Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Key Laboratory of Sichuan Province, Chengdu, Sichuan, 610041, China.
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13
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Genome-wide detection and sequence conservation analysis of long non-coding RNA during hair follicle cycle of yak. BMC Genomics 2020; 21:681. [PMID: 32998696 PMCID: PMC7528256 DOI: 10.1186/s12864-020-07082-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 09/18/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Long non-coding RNA (lncRNA) as an important regulator has been demonstrated playing an indispensable role in the biological process of hair follicles (HFs) growth. However, their function and expression profile in the HFs cycle of yak are yet unknown. Only a few functional lncRNAs have been identified, partly due to the low sequence conservation and lack of identified conserved properties in lncRNAs. Here, lncRNA-seq was employed to detect the expression profile of lncRNAs during the HFs cycle of yak, and the sequence conservation of two datasets between yak and cashmere goat during the HFs cycle was analyzed. RESULTS A total of 2884 lncRNAs were identified in 5 phases (Jan., Mar., Jun., Aug., and Oct.) during the HFs cycle of yak. Then, differential expression analysis between 3 phases (Jan., Mar., and Oct.) was performed, revealing that 198 differentially expressed lncRNAs (DELs) were obtained in the Oct.-vs-Jan. group, 280 DELs were obtained in the Jan.-vs-Mar. group, and 340 DELs were obtained in the Mar.-vs-Oct. group. Subsequently, the nearest genes of lncRNAs were searched as the potential target genes and used to explore the function of DELs by GO and KEGG enrichment analysis. Several critical pathways involved in HFs development such as Wnt signaling pathway, VEGF signaling pathway, and signaling pathways regulating pluripotency of stem cells, were enriched. To further screen key lncRNAs influencing the HFs cycle, 24 DELs with differ degree of sequence conservation were obtained via a comparative analysis of partial DELs with previously published lncRNA-seq data of cashmere goat in the HFs cycle using NCBI BLAST-2.9.0+, and 3 DELs of them were randomly selected for further detailed analysis of the sequence conservation properties. CONCLUSIONS This study revealed the expression pattern and potential function of lncRNAs during HFs cycle of yak, which would expand the knowledge about the role of lncRNAs in the HFs cycle. The findings related to sequence conservation properties of lncRNAs in the HFs cycle between the two species may provide valuable insights into the study of lncRNA functionality and mechanism.
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14
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Hong H, Mo Y, Li D, Xu Z, Liao Y, Yin P, Liu X, Xia Y, Fang J, Wang Q, Fang S. Aberrant Expression Profiles of lncRNAs and Their Associated Nearby Coding Genes in the Hippocampus of the SAMP8 Mouse Model with AD. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 20:140-154. [PMID: 32169802 PMCID: PMC7066064 DOI: 10.1016/j.omtn.2020.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 12/04/2019] [Accepted: 02/11/2020] [Indexed: 12/25/2022]
Abstract
The senescence-accelerated mouse prone 8 (SAMP8) mouse model is a useful model for investigating the fundamental mechanisms involved in the age-related learning and memory deficits of Alzheimer’s disease (AD), while the SAM/resistant 1 (SAMR1) mouse model shows normal features. Recent evidence has shown that long non-coding RNAs (lncRNAs) may play an important role in AD pathogenesis. However, a comprehensive and systematic understanding of the function of AD-related lncRNAs and their associated nearby coding genes in AD is still lacking. In this study, we collected the hippocampus, the main area of AD pathological processes, of SAMP8 and SAMR1 animals and performed microarray analysis to identify aberrantly expressed lncRNAs and their associated nearby coding genes, which may contribute to AD pathogenesis. We identified 3,112 differentially expressed lncRNAs and 3,191 differentially expressed mRNAs in SAMP8 mice compared to SAMR1 mice. More than 70% of the deregulated lncRNAs were intergenic and exon sense-overlapping lncRNAs. Gene Ontology (GO) and pathway analyses of the AD-related transcripts were also performed and are described in detail, which imply that metabolic process reprograming was likely related to AD. Furthermore, six lncRNAs and six mRNAs were selected for further validation of the microarray results using quantitative PCR, and the results were consistent with the findings from the microarray. Moreover, we analyzed 780 lincRNAs (also called long “intergenic” non-coding RNAs) and their associated nearby coding genes. Among these lincRNAs, AK158400 had the most genes nearby (n = 13), all of which belonged to the histone cluster 1 family, suggesting regulation of the nucleosome structure of the chromosomal fiber by affecting nearby genes during AD progression. In addition, we also identified 97 aberrant antisense lncRNAs and their associated coding genes. It is likely that these dysregulated lncRNAs and their associated nearby coding genes play a role in the development and/or progression of AD.
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Affiliation(s)
- Honghai Hong
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, Guangdong Province, China; Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Yousheng Mo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Dongli Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Zhiheng Xu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Yanfang Liao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Ping Yin
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, Guangdong Province, China
| | - Xinning Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Yong Xia
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, Guangdong Province, China
| | - Jiansong Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; DME Center, Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China.
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; DME Center, Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China.
| | - Shuhuan Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; DME Center, Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA.
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15
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Ma N, Tie C, Yu B, Zhang W, Wan J. Identifying lncRNA-miRNA-mRNA networks to investigate Alzheimer's disease pathogenesis and therapy strategy. Aging (Albany NY) 2020; 12:2897-2920. [PMID: 32035423 PMCID: PMC7041741 DOI: 10.18632/aging.102785] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/19/2020] [Indexed: 12/23/2022]
Abstract
Alzheimer’s disease (AD), the most common cause of dementia, leads to neuronal damage and deterioration of cognitive functions in aging brains. There is evidence suggesting the participation of noncoding RNAs in AD-associated pathophysiology. A potential linkage between AD and lncRNA-associated competing endogenous RNA (ceRNA) networks has been revealed. Nevertheless, there are still no genome-wide studies which have identified the lncRNA-associated ceRNA pairs involved in AD. For this reason, deep RNA-sequencing was performed to systematically investigate lncRNA-associated ceRNA mechanisms in AD model mice (APP/PS1) brains. Our results identified 487, 89, and 3,025 significantly dysregulated lncRNAs, miRNAs, and mRNAs, respectively, and the most comprehensive lncRNA-associated ceRNA networks to date are constructed in the APP/PS1 brain. GO analysis revealed the involvement of the identified networks in regulating AD development from distinct origins, such as synapses and dendrites. Following rigorous selection, the lncRNA-associated ceRNA networks in this AD mouse model were found to be mainly involved in synaptic plasticity as well as memory (Akap5) and regulation of amyloid-β (Aβ)-induced neuroinflammation (Klf4). This study presents the first systematic dissection of lncRNA-associated ceRNA profiles in the APP/PS1 mouse brain. The identified lncRNA-associated ceRNA networks could provide insights that facilitate AD diagnosis and future treatment strategies.
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Affiliation(s)
- Nana Ma
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen 518000, Guangdong Province, China
| | - Changrui Tie
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen 518000, Guangdong Province, China
| | - Bo Yu
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen 518000, Guangdong Province, China.,Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen 518000, Guangdong Province, China
| | - Wei Zhang
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen 518000, Guangdong Province, China
| | - Jun Wan
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen 518000, Guangdong Province, China.,Division of Life Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong 999077, China
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16
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Zhang S, Li H, Zheng L, Li H, Feng C, Zhang W. Identification of functional tRNA-derived fragments in senescence-accelerated mouse prone 8 brain. Aging (Albany NY) 2019; 11:10485-10498. [PMID: 31746776 PMCID: PMC6914438 DOI: 10.18632/aging.102471] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 11/08/2019] [Indexed: 01/06/2023]
Abstract
Transfer RNA-derived fragments (tRFs) are known to contribute to multiple illnesses, including cancers, viral infections, and age-related neurodegeneration. In this study, we used senescence-accelerated mouse prone 8 (SAMP8) as a model of neurodegenerative disorders such as Alzheimer’s disease and Parkinson’s disease, and a control, the senescence-accelerated mouse resistant 1 (SAMR1) model, to comprehensively explore differences in tRF expression between them. We discovered 570 tRF transcripts among which eight were differentially expressed. We then obtained 110 potential target genes in a miRNA-like pattern. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation suggest that these target genes participate in a variety of brain functions; e.g., synapse formation (GO: 0045202) and the synaptic vesicle cycle pathway. We further assessed in detail those tRFs whose miRNA-like pattern was most likely to promote the progression of either Alzheimer’s or Parkinson’s disease, such as AS-tDR-011775 acting on Mobp and Park2. Our findings suggest the eight dysregulated tRFs we uncovered here may be beneficially exploited as potential diagnostic biomarkers and/or therapeutic targets to treat age-related brain diseases.
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Affiliation(s)
- Shuai Zhang
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Zhuhai, Guangdong 519087, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Hejian Li
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Zhuhai, Guangdong 519087, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Ling Zheng
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Zhuhai, Guangdong 519087, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Hong Li
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Zhuhai, Guangdong 519087, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Chengqiang Feng
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Zhuhai, Guangdong 519087, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
| | - Wensheng Zhang
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Zhuhai, Guangdong 519087, China.,Engineering Research Center of Natural Medicine, Ministry of Education, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.,National and Local United Engineering Research Center for Panax Notoginseng Resources Protection and Utilization Technology, Kunming, Yunnan 650000, China
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17
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Whole-Transcriptome Analysis of APP/PS1 Mouse Brain and Identification of circRNA-miRNA-mRNA Networks to Investigate AD Pathogenesis. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:1049-1062. [PMID: 31786335 PMCID: PMC6906698 DOI: 10.1016/j.omtn.2019.10.030] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 10/10/2019] [Accepted: 10/24/2019] [Indexed: 12/14/2022]
Abstract
Alzheimer’s disease (AD) is one of the most common forms of dementia and is characterized by a progressive loss of cognition. A hallmark of AD is known to be the extensive distribution of neuronal tangles and amyloid plaques in the brain, but the molecular and cellular complexity of AD remains poorly elucidated, which limits the development of effective clinical treatments for AD. Accumulating evidence indicates that noncoding RNAs participate in AD-associated pathophysiology, but the details are largely unknown. Moreover, although recent studies have revealed a potential link between AD and circular RNA (circRNA)-associated competing endogenous RNA (ceRNA) networks, few genome-wide studies have identified putative circRNA-associated ceRNA pairs involved in AD. Here, we used deep RNA sequencing to systematically investigate circRNA-associated ceRNA mechanisms in the brain of AD model mice (APP/PS1). Our results identified 235, 30, and 1,202 significantly dysregulated circRNAs, microRNAs (miRNAs), and mRNAs, respectively, and we used the sequencing data to construct the most comprehensive circRNA-associated ceRNA networks to date in the APP/PS1 brain. Gene Ontology (GO) analysis revealed that the identified networks are involved in regulating AD development from distinct origins, such as from the dendrite (GO: 0030425) and the synapse (GO: 0045202). Following rigorous selection, the circRNA-associated ceRNA networks in this AD mouse model were discovered to be mainly involved in dendritic development and memory (Sorbs2) and mouse neural development (ALS2). This study presents the first systematic dissection of circRNA-associated ceRNA profiles in the APP/PS1 mouse brain, and the identified circRNA-associated ceRNA networks could provide insights that facilitate AD diagnosis and therapy in the future.
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18
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Identification of antisense transcripts of the microsomal triglyceride transfer protein genes in humans and mice. Biochem Biophys Res Commun 2019; 517:317-323. [PMID: 31353085 DOI: 10.1016/j.bbrc.2019.07.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 07/19/2019] [Indexed: 12/16/2022]
Abstract
Microsomal triglyceride transfer protein (MTTP) is essential for the assembly and secretion of apoB-containing lipoproteins. Here, we report the presence of genes on the anti-sense strands of the human MTTP and mouse Mttp genes. The gene on the anti-sense strand of the human MTTP gene is called MTTP-AS1. It consists of 5 exons and 4 introns and codes for two different transcripts MTTP-AS1-Long and MTTP-AS1-Short. Exons 3 and 5 of the MTTP-AS1 gene are ancient and evolutionary conserved whereas exons 2 and 4 are primate specific. MTTP-AS1-Long is mainly in the liver and is in the cytoplasm of human hepatoma cells. MTTP-AS1-Short is in the testis. The MTTP-AS1-Long transcript shows complementarity with two different exons of the MTTP transcript. The gene on the opposite strand of the mouse Mttp gene is named as Mttpos. It consists of 2 exons and one intron and codes for one transcript. Partial sequence of the Mttpos exon 2 is homologous in several species from rodents to primates. Mttpos transcript is present in mouse liver, small intestine and testis. The Mttpos transcript shows significant complementarity with the corresponding mouse Mttp mRNA sequences. Further, we identified a conserved sequence in the human MTTP-AS1-Long and mouse Mttpos transcripts indicating for possible evolutionarily conserved regulatory function for these long noncoding RNAs. It is likely that these newly identified long noncoding RNAs interact with their complementary sequences in MTTP mRNAs and affect their stability or translation.
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19
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Zheng Z, Chen M, Xing P, Yan X, Xie B. Increased Expression of Exosomal AGAP2-AS1 (AGAP2 Antisense RNA 1) In Breast Cancer Cells Inhibits Trastuzumab-Induced Cell Cytotoxicity. Med Sci Monit 2019; 25:2211-2220. [PMID: 30910994 PMCID: PMC6446658 DOI: 10.12659/msm.915419] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Trastuzumab therapy is important for patients with HER2-positive breast cancer, but more and more patients have experienced trastuzumab resistance during recent years. Accumulating evidence from recent studies showed that long non-coding RNAs (lncRNAs) play essential roles in chemoresistance of various cancer types, but the precise role of lncRNAs in trastuzumab resistance is unclear. In the present study, we aimed to identify the biofunction of lncRNA APAP2-AS1 in tranastuzumab resistance and to reveal the underlying regulatory mechanism. Material/Methods By culturing HER2-positive SKBR-3 and BT474 cells with transtuzumab-containing medium, we built trastuzumab-resistant cells. Quantitative real-time PCR was used to test the expression of AGAP2-AS1 in the built trastuzumab-resistant cells. Cell viability assay and TUNEL assay were used to test the cell viability and apoptosis in each group. Exosomes were purified from cells cultured in exosomes-depleted FBS and identified by transmission electron microscopy. Results qRT-PCR assay suggested that AGAP2-AS1 was upregulated in the built trastuzumab-resistant cells when compared with parental sensitive cells. Cell viability assay showed that silencing of AGAP2-AS1 enhanced the cytotoxicity induced by trastuzumab treatment. Mechanistically, we revealed that AGAP2-AS1 was secreted outside cells by incorporation into exosomes in an hnRNPA2B1-dependent manner. More importantly, co-culture AGAP2-AS1-containing exosomes with sensitive cells reduced the trastuzumab-induced cell death, and silencing of AGAP2-AS1 from exosomes reversed this effect. In summary, AGAP2-AS1 promotes trastuzumab resistance of breast cancer cells through packaging into exosomes. Conclusions Knockdown of AGAP2-AS1 may be helpful for improving the clinical outcome for HER2+ breast cancer patients and could serve as a therapeutic target.
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Affiliation(s)
- Zhongqiu Zheng
- Department of Breast and Thyroid Surgery, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China (mainland)
| | - Minlong Chen
- Department of Breast and Thyroid Surgery, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China (mainland)
| | - Ping Xing
- Department of Breast and Thyroid Surgery, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China (mainland)
| | - Xingqiang Yan
- Department of Breast and Thyroid Surgery, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China (mainland)
| | - Bojian Xie
- Department of Breast and Thyroid Surgery, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China (mainland)
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20
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Dai W, Mu L, Cui Y, Li Y, Chen P, Xie H, Wang X. Berberine Promotes Apoptosis of Colorectal Cancer via Regulation of the Long Non-Coding RNA (lncRNA) Cancer Susceptibility Candidate 2 (CASC2)/AU-Binding Factor 1 (AUF1)/B-Cell CLL/Lymphoma 2 (Bcl-2) Axis. Med Sci Monit 2019; 25:730-738. [PMID: 30681073 PMCID: PMC6357823 DOI: 10.12659/msm.912082] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background Berberine, a natural isoquinoline alkaloid derived from Berberis genus plants, has been reported to have anti-cancer effects. While cell behavior can be modulated by long non-coding RNAs (lncRNAs), the contributions of lncRNAs in progression and berberine effects on colorectal cancer are largely unknown. Therefore, the present study investigated the involvement and regulatory function of lncRNA cancer susceptibility candidate 2 (CASC2) during the treatment of human colorectal cancer using berberine. Material/Methods Reverse transcription-quantitative PCR (RT-qPCR) was performed to detect the expression levels of lncRNA CASC2 and Bcl-2 mRNA in colorectal cancer cells. MTT assay was performed to evaluate cell viability. Flow cytometry and TUNEL assay were used to analyze the apoptosis of cancer cells. RNA immunoprecipitation (RIP) assay was done to verify the interaction between lncRNA CASC2 and (AU-binding factor 1) AUF1, or AUF1 and B-cell CLL/lymphoma 2 (Bcl-2). Results Treatment with berberine suppressed cell viability of colorectal cancer by promoting apoptosis level. LncRNA CASC2 was upregulated in cells treated with berberine, and knockdown of lncRNA CASC2 reversed the berberine-induced apoptosis. In addition, anti-apoptotic gene Bcl-2 was suppressed by berberine treatment and lncRNA CASC2, inducing the pro-apoptotic effects. Moreover, lncRNA CASC2 binds to AUF1, which sequestered AUF1 from binding to Bcl-2 mRNA, thus inducing the inactivation of Bcl-2 translation. Conclusions Our study reveals that lncRNA CASC2 mediates the berberine-induced pro-apoptotic effect via inhibition of Bcl-2 expression at the post-transcriptional level.
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Affiliation(s)
- Wei Dai
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
| | - Liyuan Mu
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
| | - Yali Cui
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
| | - Yingying Li
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
| | - Ping Chen
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
| | - Hongjian Xie
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
| | - Xia Wang
- Medical Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, Chengdu, Sichuan, China (mainland)
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21
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Ran MX, Li Y, Zhang Y, Liang K, Ren YN, Zhang M, Zhou GB, Zhou YM, Wu K, Wang CD, Huang Y, Luo B, Qazi IH, Zhang HM, Zeng CJ. Transcriptome Sequencing Reveals the Differentially Expressed lncRNAs and mRNAs Involved in Cryoinjuries in Frozen-Thawed Giant Panda ( Ailuropoda melanoleuca) Sperm. Int J Mol Sci 2018; 19:ijms19103066. [PMID: 30297640 PMCID: PMC6212861 DOI: 10.3390/ijms19103066] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/03/2018] [Accepted: 10/05/2018] [Indexed: 02/06/2023] Open
Abstract
Sperm cryopreservation and artificial insemination are important methods for giant panda breeding and preservation of extant genetic diversity. Lower conception rates limit the use of artificial insemination with frozen-thawed giant panda sperm, due to the lack of understanding of the cryodamaging or cryoinjuring mechanisms in cryopreservation. Long non-coding RNAs (lncRNAs) are involved in regulating spermatogenesis. However, their roles during cryopreservation remain largely unexplored. Therefore, this study aimed to identify differentially expressed lncRNAs and mRNAs associated with cryodamage or freeze tolerance in frozen-thawed sperm through high throughput sequencing. A total of 61.05 Gb clean reads and 22,774 lncRNA transcripts were obtained. From the sequencing results, 1477 significantly up-regulated and 1,396 significantly down-regulated lncRNA transcripts from fresh and frozen-thawed sperm of giant panda were identified. GO and KEGG showed that the significantly dysregulated lncRNAs and mRNAs were mainly involved in regulating responses to cold stress and apoptosis, such as the integral component of membrane, calcium transport, and various signaling pathways including PI3K-Akt, p53 and cAMP. Our work is the first systematic profiling of lncRNA and mRNA in fresh and frozen-thawed giant panda sperm, and provides valuableinsights into the potential mechanism of cryodamage in sperm.
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Affiliation(s)
- Ming-Xia Ran
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yuan Li
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yan Zhang
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Kai Liang
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Ying-Nan Ren
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Ming Zhang
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Guang-Bin Zhou
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Ying-Min Zhou
- China Conservation and Research Center for the Giant Panda, Wolong 473000, China.
| | - Kai Wu
- China Conservation and Research Center for the Giant Panda, Wolong 473000, China.
| | - Cheng-Dong Wang
- China Conservation and Research Center for the Giant Panda, Wolong 473000, China.
| | - Yan Huang
- China Conservation and Research Center for the Giant Panda, Wolong 473000, China.
| | - Bo Luo
- China Conservation and Research Center for the Giant Panda, Wolong 473000, China.
| | - Izhar Hyder Qazi
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Department of Veterinary Anatomy & Histology, Faculty of Bio-Sciences, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand 67210, Pakistan.
| | - He-Min Zhang
- China Conservation and Research Center for the Giant Panda, Wolong 473000, China.
| | - Chang-Jun Zeng
- College of Animal Sciences and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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Lei Y, Guo W, Chen B, Chen L, Gong J, Li W. Tumor‑released lncRNA H19 promotes gefitinib resistance via packaging into exosomes in non‑small cell lung cancer. Oncol Rep 2018; 40:3438-3446. [PMID: 30542738 PMCID: PMC6196604 DOI: 10.3892/or.2018.6762] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/19/2018] [Indexed: 02/05/2023] Open
Abstract
Currently, resistance to tyrosine kinase inhibitors, such as gefitinib, has become one major obstacle for improving the clinical outcome of patients with metastatic and advanced-stage non-small cell lung cancer (NSCLC). While cell behavior can be modulated by long non-coding RNAs (lncRNAs), the contributions of lncRNAs within extracellular vesicles (exosomes) are largely unknown. To this end, the involvement and regulatory functions of lncRNA H19 wrapped by exosomes during formation of gefitinib resistance in human NSCLC were investigated. Gefitinib-resistant cell lines were built by continuously grafting HCC827 and HCC4006 cells into gefitinib-contained culture medium. RT-qPCR assays indicated that H19 was increased in gefitinib-resistant cells when compared to sensitive parent cells. Functional experiments revealed that silencing of H19 potently promoted gefitinib-induced cell cytotoxicity. H19 was secreted by packaging into exosomes and this packaging process was specifically mediated by hnRNPA2B1. H19 wrapped in exosomes could be transferred to non-resistant cells, thus inducing gefitinib resistance. Moreover, treatment-sensitive cells with exosomes highly-expressing H19 induced gefitinib resistance, while knockdown of H19 abrogated this effect. In conclusion, H19 promoted gefitinib resistance of NSCLC cells by packaging into exosomes. Therefore, exosomal H19 may be a promising therapeutic target for EGFR+ NSCLC patients.
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Affiliation(s)
- Yi Lei
- International Medical Center/Department of General Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Wang Guo
- International Medical Center/Department of General Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bowang Chen
- International Medical Center/Department of General Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lu Chen
- International Medical Center/Department of General Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jiaxin Gong
- International Medical Center/Department of General Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Weimin Li
- Department of Respiratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Kang M, Ren M, Li Y, Fu Y, Deng M, Li C. Exosome-mediated transfer of lncRNA PART1 induces gefitinib resistance in esophageal squamous cell carcinoma via functioning as a competing endogenous RNA. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:171. [PMID: 30049286 PMCID: PMC6063009 DOI: 10.1186/s13046-018-0845-9] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/28/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Currently, resistance to tyrosine kinase inhibitors, such as gefitinib, has become a major obstacle in improving the clinical outcome of patients with metastatic and advanced-stage esophageal squamous cell carcinoma (ESCC). While cell behavior can be modulated by long non-coding RNAs (lncRNAs), the roles of lncRNAs within extracellular vesicles (exosomes) are largely unknown. Therefore, we investigated the involvement and regulatory functions of potential lncRNAs enclosed in exosomes during formation of chemoresistance in human ESCC. METHODS Gefitinib-resistant cell lines were established by continuously grafting TE1 and KYSE-450 cells into gefitinib-containing culture medium. LncRNA microarray assay followed by RT-qPCR were used to verify the differential expression of lncRNA Prostate Androgen-Regulated Transcript 1 (PART1) between gefitinib resistant and parental cell lines. RNA fluorescence in situ hybridization (FISH) was used to investigate whether extracellular PART1 could be incorporated into exosomes and transmitted to recipient cells. Subsequently, a series of in vitro assays and a xenograft tumor model were used to observe the functions of lncRNA PART1 in ESCC cells. A signal transduction reporter array, bioinformatics analysis, western blotting, and immunofluorescence were carried out to verify the regulation of PART1 and its downstream Bcl-2 signaling pathway. RESULTS lncRNA PART1 was upregulated in gefitinib-resistant cells when compared to parental ESCC cells. It was found that STAT1 can bind to the promoter region of lncRNA PART1, resulting in its activation. Knockdown of lncRNA PART1 potently promoted the gefitinib-induced cell death, while elevated PART1 promoted gefitinib resistance by competitively binding to miR-129 to facilitate Bcl-2 expression in ESCC cells. In addition, extracellular PART1 could be incorporated into exosomes and transmitted to sensitive cells, thus disseminating gefitinib resistance. Clinically, high levels of serum lncRNA PART1 in exosome were associated with poor response to gefitinib treatment in ESCC patients. CONCLUSIONS LncRNA PART1 promotes gefitinib resistance by regulating miR-129/Bcl-2 pathway, and may serve as a therapeutic target for ESCC patients.
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Affiliation(s)
- Min Kang
- Department of Digestive Diseases, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
| | - Meiping Ren
- Drug Discivery Research Center, Southwest Medical University, Luzhou, Sichuan, China
| | - Yan Li
- Molecular Medicine Experimental Center, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yuqiong Fu
- Department of Respiratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Minmin Deng
- Department of Digestive Diseases, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Changping Li
- Department of Digestive Diseases, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
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Ge W, Wang SH, Sun B, Zhang YL, Shen W, Khatib H, Wang X. Melatonin promotes Cashmere goat (Capra hircus) secondary hair follicle growth: a view from integrated analysis of long non-coding and coding RNAs. Cell Cycle 2018; 17:1255-1267. [PMID: 29895193 DOI: 10.1080/15384101.2018.1471318] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The role of melatonin in promoting the yield of Cashmere goat wool has been demonstrated for decades though there remains a lack of knowledge regarding melatonin mediated hair follicle growth. Recent studies have demonstrated that long non-coding RNAs (lncRNAs) are widely transcribed in the genome and play ubiquitous roles in regulating biological processes. However, the role of lncRNAs in regulating melatonin mediated hair follicle growth remains unclear. In this study, we established an in vitro Cashmere goat secondary hair follicle culture system, and demonstrated that 500 ng/L melatonin exposure promoted hair follicle fiber growth. Based on long intergenic RNA sequencing, we demonstrated that melatonin promoted hair follicle elongation via regulating genes involved in focal adhesion and extracellular matrix receptor pathways and further cis predicting of lncRNAs targeted genes indicated that melatonin mediated lncRNAs mainly targeted vascular smooth muscle contraction and signaling pathways regulating the pluripotency of stem cells. We proposed that melatonin exposure not only perturbed key signals secreted from hair follicle stem cells to regulate hair follicle development, but also mediated lncRNAs mainly targeted to pathways involved in the microvascular system and extracellular matrix, which constitute the highly orchestrated microenvironment for hair follicle stem cell. Taken together, our findings here provide a profound view of lncRNAs in regulating Cashmere goat hair follicle circadian rhythms and broaden our knowledge on melatonin mediated hair follicle morphological changes.
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Affiliation(s)
- Wei Ge
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Shan-He Wang
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Bing Sun
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Yue-Lang Zhang
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Wei Shen
- b College of Life Sciences, Institute of Reproductive Sciences , Qingdao Agricultural University , Qingdao , China
| | - Hasan Khatib
- c Department of Animal Sciences , University of Wisconsin-Madison , Madison , WI , USA
| | - Xin Wang
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
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25
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Huang Z, Lei W, Tan J, Hu HB. Long noncoding RNA LINC00961 inhibits cell proliferation and induces cell apoptosis in human non-small cell lung cancer. J Cell Biochem 2018; 119:9072-9080. [PMID: 30010215 DOI: 10.1002/jcb.27166] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 05/18/2018] [Indexed: 12/19/2022]
Abstract
Long noncoding RNAs (LncRNAs) have been identified in multiple human cancer types, including lung cancer. An increasing number of studies have indicated that lncRNAs can function as important gene regulators. However, the biological mechanism of LINC00961 in lung cancerremains poorly understood. In our current study, we recognized lncRNA LINC00961, and we observed that it was significantly reduced in human non-small cell lung cancer (NSCLC) tissues. LINC00961 was elevated by infecting LV-LINC00961, while decreased by LV-shLINC00961 in H226 and A549 cells. Furthermore, it was shown that LINC00961 overexpression greatly inhibited lung cancer cell proliferation, whereas downregulated LINC00961 induced cell proliferation. In addition, further experiments showed that restoration of LINC00961 could dramatically increase apoptotic ratios of NSCLC H226 and A549 cells, and knockdown of LINC00961 exhibited an opposite effect. Moreover, Western blot analysis showed that upregulation of LINC00961 repressed proliferating cell nuclear antigen expression and increased Bax expression, indicating that it acts as an important pro-apoptosis gene. Conversely, inhibition of LINC00961 induced proliferating cell nuclear antigen expression and restrained Bax protein levels. Taking these together, LINC00961 might play a tumor suppressive role in NSCLC progression, and it could serve as a novel prognostic biomarker in NSCLC diagnosis and treatment.
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Affiliation(s)
- Zhiwen Huang
- Department of Respiratory Medicine, Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei, China
| | - Wei Lei
- Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jin Tan
- Department of Thoracic Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China
| | - Hai-Bo Hu
- Department of Thoracic Surgery, Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
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26
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Dong H, Wang W, Chen R, Zhang Y, Zou K, Ye M, He X, Zhang F, Han J. Exosome-mediated transfer of lncRNA‑SNHG14 promotes trastuzumab chemoresistance in breast cancer. Int J Oncol 2018; 53:1013-1026. [PMID: 30015837 PMCID: PMC6065402 DOI: 10.3892/ijo.2018.4467] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/15/2018] [Indexed: 12/14/2022] Open
Abstract
Currently, resistance to trastuzumab, a human epidermal growth factor receptor 2 (HER2) inhibitor, has become an important obstacle to improving the clinical outcome of patients with advanced HER2+ breast cancer. While cell behavior may be modulated by long non-coding RNAs (lncRNAs), the contributions of lncRNAs within extracellular vesicles (exosomes) are largely unknown. To this end, the involvement and regulatory functions of potential lncRNAs contained within exosomes during the formation of chemoresistance in human breast cancer were investigated. Trastuzumab-resistant cell lines were established by continuously grafting HER2+ SKBR-3 and BT474 cells into trastuzumab-containing culture medium. An lncRNA micro-array assay followed by reverse transcription-quantitative polymerase chain reaction analysis identified that lncRNA-small nucleolar RNA host gene 14 (SNHG14) was upregulated in trastuzumab-resistant cells when compared with parental breast cancer cells. Functional experimentation demonstrated that knockdown of lncRNA-SNHG14 potently promoted trastuzumab-induced cytotoxicity. Furthermore, extracellular lncRNA-SNHG14 was able to be incorporated into exosomes and transmitted to sensitive cells, thus disseminating trastuzumab resistance. Treatment of sensitive cells with exosomes highly expressing lncRNA-SNHG14 induced trastuzumab resistance, while knockdown of lncRNA-SNHG14 abrogated this effect. The Signal Transduction Reporter Array indicated that lncRNA-SNHG14 may promote the effect of trastuzumab by targeting the apoptosis regulator Bcl-2 (Bcl-2)/apoptosis regulator BAX (Bax) signaling pathway. Furthermore, the expression level of serum exosomal lncRNA-SNHG14 was upregulated in patients who exhibited resistance to trastuzumab, compared with patients exhibiting a response. Therefore, lncRNA-SNHG14 may be a promising therapeutic target for patients with HER2+ breast cancer.
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Affiliation(s)
- Huaying Dong
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Wei Wang
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Ru Chen
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Yu Zhang
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Kejian Zou
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Mulin Ye
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Xionghui He
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Fan Zhang
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
| | - Jing Han
- Department of General Surgery, Hainan General Hospital, Haikou, Hainan 570311, P.R. China
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Zhang W, Cai X, Yu J, Lu X, Qian Q, Qian W. Exosome-mediated transfer of lncRNA RP11‑838N2.4 promotes erlotinib resistance in non-small cell lung cancer. Int J Oncol 2018; 53:527-538. [PMID: 29845246 PMCID: PMC6017264 DOI: 10.3892/ijo.2018.4412] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/04/2018] [Indexed: 12/31/2022] Open
Abstract
Currently, resistance to tyrosine kinase inhibitors, such as erlotinib, has become a major obstacle for improving the clinical outcome of patients with metastatic and advanced-stage non-small cell lung cancer (NSCLC). While cell behavior can be modulated by long non-coding RNAs (lncRNAs), the roles of lncRNAs within extracellular vesicles (exosomes) are largely unknown. To this end, in this study, the involvement and regulatory functions of potential lncRNAs wrapped by exosomes during the development of chemoresistance in human NSCLC were investigated. Erlotinib-resistant cell lines were established by grafting HCC827 and HCC4006 cells into mice and which were treated with erlotinib. After one treatment course, xenografted NSCLC cells were isolated and transplanted into nude mice again followed by erlotinib treatment. This process was repeated until 4th generation xenografts were isolated and confirmed to be erlotinib-resistant NSCLC cells. lncRNA microarray assays followed by RT-qPCR were then performed which identified that lncRNA RP11-838N2.4 was upregulated in erlotinib-resistant cells when compared to normal NSCLC cells. Furthermore, bioinformatics analysis and chromatin immunoprecipitation revealed that forkhead box protein O1 (FOXO1) could bind to the promoter region of lncRNA RP11-838N2.4, resulting in its silencing through the recruitment of histone deacetylase. Functional experiments demonstrated that the knockdown of lncRNA RP11-838N2.4 potently promoted erlotinib-induced cytotoxicity. Furthermore, extracellular lncRNA RP11-838N2.4 could be incorporated into exosomes and transmitted to sensitive cells, thus disseminating erlotinib resistance. Treatment-sensitive cells with exosomes containing lncRNA RP11-838N2.4 induced erlotinib resistance, while the knockdown of lncRNA RP11-838N2.4 abrogated this effect. In addition, the serum expression levels of exosomal lncRNA RP11-838N2.4 were upregulated in patients exhibiting resistance to erlotinib treatment. On the whole, exosomal lncRNA RP11-838N2.4 may serve as a therapeutic target for patients with NSCLC.
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Affiliation(s)
- Wei Zhang
- Department of Lung Disease, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Xinrui Cai
- Department of Traditional Chinese Medicine, Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
| | - Jie Yu
- Department of Chinese Internal Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Xuxiang Lu
- Department of Chinese Internal Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Qiuhai Qian
- Department of Endocrinology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Weibin Qian
- Department of Lung Disease, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
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Kang Y, Zhu X, Xu Y, Tang Q, Huang Z, Zhao Z, Lu J, Song G, Xu H, Deng C, Wang J. Energy stress-induced lncRNA HAND2-AS1 represses HIF1α-mediated energy metabolism and inhibits osteosarcoma progression. Am J Cancer Res 2018; 8:526-537. [PMID: 29637006 PMCID: PMC5883101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 12/23/2017] [Indexed: 06/08/2023] Open
Abstract
During recent years, long noncoding RNAs (lncRNAs) have been recognized as key regulators in the development and progression of human cancers, however, their roles in osteosarcoma metabolism are still not well understood. The present study aims to investigate the expression profiles and potential modulation of specific lncRNA(s) in osteosarcoma metabolism. The high-throughput Hiseq sequencing was performed to screen for abnormally expressed lncRNAs in osteosarcoma cells cultured under glucose starvation condition, and lncRNA HAND2-AS1 was eventually identified as one that was significantly up-regulated when compared with normal cultured cells. Mechanistic investigations indicated that knockdown of HAND2-AS1 abrogated the energy stress-induced effect on cell apoptosis and proliferation, and promoted osteosarcoma progression. Moreover, knockdown of HAND2-AS1 promoted glucose uptake, lactate production, and the expression level of a serious of enzymes that involved in energy metabolism. Subsequently, RNA pull-down and RNA immuneprecipitation revealed that, upon energy stress, HAND2-AS1 regulated osteosarcoma metabolism through sequestering FBP1 from binding to HIF1α, thereby releasing HIF1α expression and promoting the protein level. Taken together, our integrated approach reveals a regulatory mechanism by lncRNA HAND2-AS1 to control energy metabolism and tumor development in osteosarcoma. Thus, HAND2-AS1 may be a potential biomarker and therapeutic target for the repression of osteosarcoma metabolism.
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Affiliation(s)
- Yao Kang
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong, China
| | - Xiaojun Zhu
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong, China
| | - Yanyang Xu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer CenterGuangzhou 510060, China
| | - Qinglian Tang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer CenterGuangzhou 510060, China
| | - Zongwen Huang
- Department of Orthopedis, The Fifth Affiliated Hospital of Sun Yat-sen UniversityZhu Hai 519000, Guangdong, China
| | - Zhiqiang Zhao
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong, China
| | - Jinchang Lu
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510080, Guangdong, China
| | - Guohui Song
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer CenterGuangzhou 510060, China
| | - Huaiyuan Xu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer CenterGuangzhou 510060, China
| | - Chuangzhong Deng
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer CenterGuangzhou 510060, China
| | - Jin Wang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer CenterGuangzhou 510060, China
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Xu Y, Zhang H, Pan B, Zhang S, Wang S, Niu Q. Transcriptome-Wide Identification of Differentially Expressed Genes and Long Non-coding RNAs in Aluminum-Treated Rat Hippocampus. Neurotox Res 2018; 34:220-232. [PMID: 29460113 DOI: 10.1007/s12640-018-9879-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/20/2018] [Accepted: 02/02/2018] [Indexed: 12/14/2022]
Abstract
Aluminum (Al) is an environmental neurotoxicant with a wide exposure, but the molecular mechanism underlying its toxicity remains unclear. We used RNA sequencing (RNA-seq) in the hippocampus of Al-treated rats to identify 96 upregulated and 652 downregulated mRNAs, and 37 dysregulated long non-coding (lnc)RNAs. Gene ontology analysis showed that dysregulated genes were involved in glial cell differentiation, neural transmission, and vesicle trafficking. Kyoto Encyclopedia of Genes and Genomes pathway analysis revealed clustering of differentially expressed mRNAs and lncRNA target genes in several pathways, including the "adenosine monophosphate-activated protein kinase signaling pathway," "extracellular matrix receptor interaction," "the phosphatidylinositol 3 kinase-protein kinase B signaling pathway," and "focal adhesion" signaling pathway. RNA-seq results were validated by reverse transcription (RT)-PCR. Additionally, Al induced changes to the number and morphology of glial cells in the hippocampus of rats, as shown by glial fibrillary acidic protein (GFAP) and ionized calcium binding adaptor molecule 1 (Iba1) immunochemistry. RT-PCR and western blotting validated the significant increase in expression of glial cell-related genes GFAP and SOX10 following Al exposure compared with control rats, consistent with RNA-seq results. Collectively, these results suggest that aberrant mRNAs and lncRNAs respond to Al neurotoxicity, and that glial cell-related genes play important roles in the Al neurotoxicity mechanism. These findings provide the basis for designing targeted approaches for the treatment or prevention of Al-induced neurotoxicity.
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Affiliation(s)
- Yirong Xu
- Pathology Department, Shanxi Medical University Fenyang College, Fenyang, Shanxi, 032200, China
- College of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Huifang Zhang
- College of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Baolong Pan
- College of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Shuhui Zhang
- College of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Shan Wang
- College of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Qiao Niu
- College of Public Health, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
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30
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Feng D, Li Q, Yu H, Kong L, Du S. Transcriptional profiling of long non-coding RNAs in mantle of Crassostrea gigas and their association with shell pigmentation. Sci Rep 2018; 8:1436. [PMID: 29362405 PMCID: PMC5780484 DOI: 10.1038/s41598-018-19950-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 01/10/2018] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) play crucial roles in diverse biological processes and have drawn extensive attention in the past few years. However, lncRNAs remain poorly understood about expression and roles in Crassostrea gigas, a potential model organism for marine molluscan studies. Here, we systematically identified lncRNAs in the mantles of C. gigas from four full-sib families characterized by white, black, golden, and partially pigmented shell. Using poly(A)-independent and strand-specific RNA-seq, a total of 441,205,852 clean reads and 12,243 lncRNA transcripts were obtained. LncRNA transcripts were relatively short with few exons and low levels of expression in comparison to protein coding mRNA transcripts. A total of 427 lncRNAs and 349 mRNAs were identified to differentially express among six pairwise groups, mainly involving in biomineralization and pigmentation through functional enrichment. Furthermore, a total of 6 mRNAs and their cis-acting lncRNAs were predicted to involve in synthesis of melanin, carotenoid, tetrapyrrole, or ommochrome. Of them, chorion peroxidase and its cis-acting lincRNA TCONS_00951105 are implicated in playing an essential role in the melanin synthetic pathway. Our studies provided the first systematic characterization of lncRNAs catalog expressed in oyster mantle, which may facilitate understanding the molecular regulation of shell colour diversity and provide new insights into future selective breeding of C. gigas for aquaculture.
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Affiliation(s)
- Dandan Feng
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Qi Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
| | - Hong Yu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Lingfeng Kong
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Shaojun Du
- Institute of Marine and Environmental Technology, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, United States
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Dissection of Myogenic Differentiation Signatures in Chickens by RNA-Seq Analysis. Genes (Basel) 2018; 9:genes9010034. [PMID: 29324704 PMCID: PMC5793186 DOI: 10.3390/genes9010034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/22/2017] [Accepted: 01/03/2018] [Indexed: 12/22/2022] Open
Abstract
A series of elaborately regulated and orchestrated changes in gene expression profiles leads to muscle growth and development. In this study, RNA sequencing was used to profile embryonic chicken myoblasts and fused myotube transcriptomes, long non-coding RNAs (lncRNAs), and messenger RNAs (mRNAs) at four stages of myoblast differentiation. Of a total of 2484 lncRNA transcripts, 2288 were long intergenic non-coding RNAs (lincRNAs) and 198 were antisense lncRNAs. Additionally, 1530 lncRNAs were neighboring 2041 protein-coding genes (<10 kb upstream and downstream) and functionally enriched in several pathways related to skeletal muscle development that have been extensively studied, indicating that these genes may be in cis-regulatory relationships. In addition, Pearson’s correlation coefficients demonstrated that 990 lncRNAs and 7436 mRNAs were possibly in trans-regulatory relationships. These co-expressed mRNAs were enriched in various developmentally-related biological processes, such as myocyte proliferation and differentiation, myoblast differentiation, and myoblast fusion. The number of transcripts (906 lncRNAs and 4422 mRNAs) differentially expressed across various stages declined with the progression of differentiation. Then, 4422 differentially expressed genes were assigned to four clusters according to K-means analysis. Genes in the K1 cluster likely play important roles in myoblast proliferation and those in the K4 cluster were likely associated with the initiation of myoblast differentiation, while genes in the K2 and K3 clusters were likely related to myoblast fusion. This study provides a catalog of chicken lncRNAs and mRNAs for further experimental investigations and facilitates a better understanding of skeletal muscle development.
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Zhao X, Liu Y, Li Z, Zheng S, Wang Z, Li W, Bi Z, Li L, Jiang Y, Luo Y, Lin Q, Fu Z, Rufu C. Linc00511 acts as a competing endogenous RNA to regulate VEGFA expression through sponging hsa-miR-29b-3p in pancreatic ductal adenocarcinoma. J Cell Mol Med 2018; 22:655-667. [PMID: 28984028 PMCID: PMC5742682 DOI: 10.1111/jcmm.13351] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 07/19/2017] [Indexed: 01/12/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignancy. Long non-coding RNAs (lncRNAs) are important regulators in pathological processes, yet their potential roles in PDAC are poorly understood. Here, we identify a fundamental role for a novel lincRNA, linc00511, in the progression of PDAC. Linc00511 levels in PDAC tissue specimens and cell lines were examined by quantitative real-time PCR. Corresponding adjacent non-neoplastic tissues were used as controls. The function of linc00511 in PDAC cell lines was determined by RNA interference approach in vitro and in vivo. Fluorescence in situ hybridization (FISH) was used to characterize linc00511 expression in PDAC cells. Insights of the mechanism of competitive endogenous RNAs (ceRNAs) were obtained from bioinformatic analysis, luciferase assays and RIP assays. The association between the linc00511/hsa-miR29b-3p axis and VEGFA was verified by Western blotting assay. Immunohistochemistry was performed to evaluate the expression of VEGFA in PDAC samples. The aberrant up-regulation of linc00511 was detected in PDAC cell lines and patient specimens compared with controls. An increase in linc00511 expression indicates the adverse clinical pathological characteristics and poor prognosis. Functionally, linc00511 depletion in PDAC cells decreased proliferation, migration, invasion and endothelial tube formation. Mechanistically, linc00511 could up-regulate VEGFA via its competing endogenous RNA (ceRNA) activity on hsa-miR-29b-3p. In summary, our results define an important axis controlling proliferation, invasion and tumour angiogenesis in PDAC. Linc00511 is a novel lncRNA that plays a significant regulatory role in the pathogenesis and progression of PDAC. Thus, Linc00511 represents a new prognostic biomarker to predict clinical outcome of PDAC patients after surgery and may serve as a potential therapeutic target for PDAC treatment.
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Affiliation(s)
- Xiaohui Zhao
- Department of RadiotherapySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yimin Liu
- Department of RadiotherapySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Zhihua Li
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Medical OncologySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Shangyou Zheng
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Hepatobiliary SurgerySun Yat‐sen Memorial HospitalGuangzhouChina
| | - Zairui Wang
- Department of NephrologyArmed Police Corps Hospital of Guangdong ProvinceGuangdongChina
| | - Wenzhu Li
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Medical OncologySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Zhuofei Bi
- Department of RadiotherapySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Liting Li
- Department of RadiotherapySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yanhui Jiang
- Department of RadiotherapySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Yuming Luo
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Hepatobiliary SurgerySun Yat‐sen Memorial HospitalGuangzhouChina
| | - Qing Lin
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Hepatobiliary SurgerySun Yat‐sen Memorial HospitalGuangzhouChina
| | - Zhiqiang Fu
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Hepatobiliary SurgerySun Yat‐sen Memorial HospitalGuangzhouChina
| | - Chen Rufu
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong higher Education InstitutesSun Yat‐Sen Memorial HospitalSun Yat‐sen UniversityGuangzhouChina
- Department of Hepatobiliary SurgerySun Yat‐sen Memorial HospitalGuangzhouChina
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33
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Long Non-coding RNAs, Novel Culprits, or Bodyguards in Neurodegenerative Diseases. MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 10:269-276. [PMID: 29499939 PMCID: PMC5787881 DOI: 10.1016/j.omtn.2017.12.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/19/2017] [Accepted: 12/19/2017] [Indexed: 12/14/2022]
Abstract
Long non-coding RNA (lncRNA) is a kind of non-coding RNA (ncRNA), with a length of 200 nt to 100 kb, that lacks a significant open reading frame (ORF) encoding a protein. lncRNAs are widely implicated in various physiological and pathological processes, such as epigenetic regulation, cell cycle regulation, cell differentiation regulation, cancer, and neurodegenerative diseases, through their interactions with chromatin, protein, and other RNAs. Numerous studies have suggested that lncRNAs are closely linked with the occurrence and development of a variety of diseases, especially neurodegenerative diseases, of which the etiologies are complicated and the underlying mechanisms remain elusive. Determining the roles of lncRNA in the pathogenesis of neurodegenerative diseases will not only deepen understanding of the physiological and pathological processes that occur in those diseases but also provide new ideas and solutions for their diagnosis and prevention. This review aims to highlight the progress of lncRNA research in the pathological and behavioral changes of neurodegenerative diseases. Specifically, we focus on how lncRNA dysfunctions are involved in the pathogenesis of Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, and amyotrophic lateral sclerosis.
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Liu H, Zhou G, Fu X, Cui H, Pu G, Xiao Y, Sun W, Dong X, Zhang L, Cao S, Li G, Wu X, Yang X. Long noncoding RNA TUG1 is a diagnostic factor in lung adenocarcinoma and suppresses apoptosis via epigenetic silencing of BAX. Oncotarget 2017; 8:101899-101910. [PMID: 29254212 PMCID: PMC5731922 DOI: 10.18632/oncotarget.22058] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 09/20/2017] [Indexed: 12/11/2022] Open
Abstract
Lung cancer is one of the leading causes of cancer-related mortality, and responds badly to existing treatment. Thus, it is of urgent need to identify novel diagnostic markers and therapeutic targets. Increasing evidences have indicated that long non-coding RNAs (lncRNAs) play an important role in initiation and progression of lung cancer. However, the role of lncRNA Taurine upregulated 1 (TUG1) in lung adenocarcinoma (LAD) progression is not well known. In this study, we determined the diagnostic value of TUG1 in LAD patients, and further uncovered the underlying functional mechanism. Our results showed that TUG1 was significantly upregulated in LAD cells and serum samples. Receiver operator characteristic (ROC) analysis suggested a relatively higher area under the curve (AUC) of TUG1 (0.756) contrast to cyfra21-1 (0.619). In addition, high TUG1 level was associated with enhanced tumor size, degree of differentiation, lymph node metastases, distant metastasis and TNM stage. Cell functional assays showed that knockdown of TUG1 suppressed LAD cell viability and promoted cell apoptosis. We then sought to reveal the underlying regulatory mechanism, and the pro-apoptotic protein BAX was then identified as the downstream target of TUG1. Gain and loss functional assays showed that inhibition of BAX reversed the induced apoptosis by TUG1 knockdown. Finally, RNA immunoprecipitation and Chromatin immunoprecipitation revealed that TUG1 suppressed BAX expression through physically interacting with EZH2. In conclusion, lncRNA TUG1 is a promising diagnostic marker for LAD patients and suppression of TUG1 levels could be a future direction to promote the prognosis of LAD patients.
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Affiliation(s)
- Huan Liu
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Guizhi Zhou
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xin Fu
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Haiyan Cui
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Guangrui Pu
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yao Xiao
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Wei Sun
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xinhua Dong
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Libin Zhang
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Sijia Cao
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Guiqin Li
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xiaowei Wu
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xu Yang
- Health Physical Examination Department of The Third Department, The First Affiliated hospital of Dalian Medical University, Dalian, Liaoning, China
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35
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Characterization of circRNA-Associated-ceRNA Networks in a Senescence-Accelerated Mouse Prone 8 Brain. Mol Ther 2017; 25:2053-2061. [PMID: 28669840 DOI: 10.1016/j.ymthe.2017.06.009] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 05/19/2017] [Accepted: 06/09/2017] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases. Although many researchers have attempted to explain the origins of AD, developing an effective strategy in AD clinical therapy is difficult. Recent studies have revealed a potential link between AD and circRNA-associated-ceRNA networks. However, few genome-wide studies have identified the potential circRNA-associated-ceRNA pairs involved in AD. In this study, we systematically explored the circRNA-associated-ceRNA mechanism in a 7-month-old senescence-accelerated mouse prone 8 (SAMP8) model brain through deep RNA sequencing. We obtained 235 significantly dysregulated circRNA transcripts, 30 significantly dysregulated miRNAs, and 1,202 significantly dysregulated mRNAs. We then constructed the most comprehensive circRNA-associated-ceRNA networks in SAMP8 brain. GO analysis revealed that these networks were involved in regulating the development of AD from various angles, for instance, axon terminus (GO: 0043679) and synapse (GO: 0045202). Following rigorous selection, we discovered that the circRNA-associated-ceRNA networks in this AD mouse model were mainly involved in the regulation of Aβ clearance (Hmgb2) and myelin function (Dio2). This research is the first to provide a systematic dissection of circRNA-associated-ceRNA profiling in SAMP8 mouse brain. The selected circRNA-associated-ceRNA networks can profoundly affect the diagnosis and therapy of AD in the future.
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36
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Zhang S, Zhu D, Li H, Zhang H, Feng C, Zhang W. Analyses of mRNA Profiling through RNA Sequencing on a SAMP8 Mouse Model in Response to Ginsenoside Rg1 and Rb1 Treatment. Front Pharmacol 2017; 8:88. [PMID: 28289387 PMCID: PMC5326756 DOI: 10.3389/fphar.2017.00088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 02/13/2017] [Indexed: 11/23/2022] Open
Abstract
Ginsenoside Rg1 and Rb1 are the major ingredients in two medicines called QiShengLi (Z20027165) and QiShengJing (Z20027164) approved by China. These ingredients are believed to mitigate forgetfulness. Numerous studies have confirmed that GRg1 and GRb1 offer protection against Alzheimer's disease (AD), and our morris water maze (MWM) experiment also indicated that GRg1 and GRb1 may attenuate memory deficits in the 7-month-old SAMP8 mice; however, comprehensive understanding of their roles in AD remains limited. This study systematically explored the mechanism at the genome level of the anti-AD effects of GRg1 and GRb1 in a senescence-accelerated mouse prone 8 (SAMP8) model through deep RNA sequencing. A total of 74,885 mRNA transcripts were obtained. Expression analysis showed that 1,780 mRNA transcripts were differentially expressed in SAMP8 mice compared with the SAMP8+GRg1 mice. Moreover, 1,066 significantly dysregulated mRNA transcripts were identified between SAMP8 and SAMP8+GRb1 mice. Analyses according to gene ontology and the Kyoto Encyclopedia of Genes and Genomes revealed that oral administration of GRg1 and GRb1 improved the learning performance of the SAMP8 mouse model from various aspects, such as nervous system development and mitogen-activated protein kinase signaling pathway. The most probable AD-related transcriptional responses after medication were predicted and discussed in detail. This study is the first to provide a systematic dissection of mRNA profiling in SAMP8 mouse brain in response to GRg1 and GRb1 treatment. We explained their efficacy thoroughly from the source (gene-level explanation). The findings serve as a theoretical basis for the exploration of GRg1 and GRb1 as functional drugs with anti-AD activity.
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Affiliation(s)
- Shuai Zhang
- Beijing Area Major Laboratory of Protection and Utilization of Traditional Chinese Medicine, Beijing Normal UniversityBeijing, China; Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal UniversityBeijing, China; Department of Chinese Medicine, College of Resources Science Technology, Beijing Normal UniversityBeijing, China
| | - Dina Zhu
- Beijing Area Major Laboratory of Protection and Utilization of Traditional Chinese Medicine, Beijing Normal UniversityBeijing, China; Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal UniversityBeijing, China; Department of Chinese Medicine, College of Resources Science Technology, Beijing Normal UniversityBeijing, China
| | - Hong Li
- Beijing Area Major Laboratory of Protection and Utilization of Traditional Chinese Medicine, Beijing Normal UniversityBeijing, China; Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal UniversityBeijing, China; Department of Chinese Medicine, College of Resources Science Technology, Beijing Normal UniversityBeijing, China
| | - Haijing Zhang
- Beijing Area Major Laboratory of Protection and Utilization of Traditional Chinese Medicine, Beijing Normal UniversityBeijing, China; Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal UniversityBeijing, China; Department of Chinese Medicine, College of Resources Science Technology, Beijing Normal UniversityBeijing, China
| | - Chengqiang Feng
- Beijing Area Major Laboratory of Protection and Utilization of Traditional Chinese Medicine, Beijing Normal UniversityBeijing, China; Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal UniversityBeijing, China; Department of Chinese Medicine, College of Resources Science Technology, Beijing Normal UniversityBeijing, China
| | - Wensheng Zhang
- Beijing Area Major Laboratory of Protection and Utilization of Traditional Chinese Medicine, Beijing Normal UniversityBeijing, China; Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal UniversityBeijing, China; Department of Chinese Medicine, College of Resources Science Technology, Beijing Normal UniversityBeijing, China; National and Local United Engineering Research Center for Sanqi Resources Protection and Utilization TechnologyKunming, China
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