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Li P, Chai J, Chen Z, Liu Y, Wei J, Liu Y, Zhao D, Ma J, Wang K, Li X, Shao Y, Gong L, Zhang W, Guo S, Yan Q, Li M, Fan L, Wang Z. Genomic Mutation Profile of Primary Gastrointestinal Diffuse Large B-Cell Lymphoma. Front Oncol 2021; 11:622648. [PMID: 33747936 PMCID: PMC7973209 DOI: 10.3389/fonc.2021.622648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 02/08/2021] [Indexed: 12/13/2022] Open
Abstract
Primary gastrointestinal diffuse large B-cell lymphoma (GI-DLBCL) is the most common gastrointestinal lymphoma, but its genetic features are poorly understood. We performed whole-exome sequencing of 25 primary tumor samples from patients with GI-DLBCL and 23 matched normal tissue samples. Oncogenic mutations were screened, and the correlations between genetic mutations and clinicopathological characteristics were analyzed. Twenty-five patients with GI-DLBCL were enrolled in the genetic mutation analysis with a median of 184 (range 79–382) protein-altering variants per patient. We identified recurrent oncogenic mutations in GI-DLBCL, including those in TP53, MUC16, B2M, CCND3, HIST1H1C, NEB, and ID3. Compared with nodal DLBCL, GI-DLBCL exhibited an increased mutation frequency of TP53 and reduced mutation frequencies of PIM1, CREBBP, BCL2, KMT2D, and EZH2. Moreover, GI-DLBCL exhibited fewer MYD88 and CD79B mutations than DLBCL in the testis and central nervous system. GI-DLBCLs with HLA-B, MEF2A, RHOA, and NAV3 mutations exhibited a tendency toward a high proliferation index. MUC16 and ETV6 mutations often occurred in tumors with early clinical staging. Our data provide a comprehensive understanding of the landscape of mutations in a small subset of GI-DLBCLs. The genetic mutation profiles of GI-DLBCL differ from those of nodal DLBCL and DLBCL in immune-privileged sites. The different mutated genes are related to the NF-κB and JAK-STAT pathways, and the different pathogenetic mechanisms leading to the development of DLBCL may be influenced by the tissue microenvironment. Differences in genetic alterations might influence the clinicopathological characteristics of GI-DLBCL.
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Affiliation(s)
- Peifeng Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China.,Department of Pathology, The 960th Hospital of the Chinese People's Liberation Army, Jinan, China
| | - Jia Chai
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Zi Chen
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Yang Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China.,Department of Oral Mucosa, Affiliated Stomatological Hospital, Fourth Military Medical University, Xi'an, China
| | - Jie Wei
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Danhui Zhao
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Jing Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Kaijing Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Xia Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Yang Shao
- Nanjing Geneseeq Technology Inc., School of Public Health, Nanjing Medical University, Nanjing, China
| | - Li Gong
- Department of Pathology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Zhang
- Department of Pathology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Qingguo Yan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
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Huang L, Zhu J, Kong W, Li P, Zhu S. Expression and Prognostic Characteristics of m6A RNA Methylation Regulators in Colon Cancer. Int J Mol Sci 2021; 22:ijms22042134. [PMID: 33670062 PMCID: PMC7926939 DOI: 10.3390/ijms22042134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/08/2021] [Accepted: 02/15/2021] [Indexed: 12/14/2022] Open
Abstract
Colon cancer is a common and leading cause of death and malignancy worldwide. N6-methylation of adenosine (m6A) is the most common reversible mRNA modification in eukaryotes, and it plays a crucial role in various biological functions in vivo. Dysregulated expression and genetic changes of m6A regulators have been correlated with tumorigenesis, cancer cell proliferation, tumor microenvironment, and prognosis in cancers. This study used RNA-seq and colon cancer clinical data to explore the relationship between N6-methylation and colon cancer. Based on the seven m6A regulators related to prognosis, three molecular subgroups of colon cancer were identified. Surprisingly, we found that each subgroup had unique survival characteristics. We then identified three subtypes of tumors based on 299 m6A phenotype-related genes, and one subtype was characterized as an immunosuppressive tumor and patients in this subtype may be more suitable for immunotherapy than other subtypes. Finally, using m6A-related genes and clinical information from The Cancer Genome Atlas cohort, we constructed a prognosis model, and this model could be used to predict the prognosis of patients in clinics.
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Affiliation(s)
- Liting Huang
- Institute of Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China;
| | - Jie Zhu
- Peking University Health Science Center, Department of Pharmacology, School of Basic Medical Sciences, Peking University, 38 Xueyuan Road, Haidian District, Beijing 100191, China; (J.Z.); (W.K.)
| | - Weikaixin Kong
- Peking University Health Science Center, Department of Pharmacology, School of Basic Medical Sciences, Peking University, 38 Xueyuan Road, Haidian District, Beijing 100191, China; (J.Z.); (W.K.)
| | - Peifeng Li
- Institute of Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China;
- Correspondence: (P.L.); (S.Z.); Tel.: +86-0532-82991791 (S.Z.)
| | - Sujie Zhu
- Institute of Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China;
- Correspondence: (P.L.); (S.Z.); Tel.: +86-0532-82991791 (S.Z.)
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103
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Xu Y, Song X, Wang D, Wang Y, Li P, Li J. Proteomic insights into synaptic signaling in the brain: the past, present and future. Mol Brain 2021; 14:37. [PMID: 33596935 PMCID: PMC7888154 DOI: 10.1186/s13041-021-00750-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/09/2021] [Indexed: 12/29/2022] Open
Abstract
Chemical synapses in the brain connect neurons to form neural circuits, providing the structural and functional bases for neural communication. Disrupted synaptic signaling is closely related to a variety of neurological and psychiatric disorders. In the past two decades, proteomics has blossomed as a versatile tool in biological and biomedical research, rendering a wealth of information toward decoding the molecular machinery of life. There is enormous interest in employing proteomic approaches for the study of synapses, and substantial progress has been made. Here, we review the findings of proteomic studies of chemical synapses in the brain, with special attention paid to the key players in synaptic signaling, i.e., the synaptic protein complexes and their post-translational modifications. Looking toward the future, we discuss the technological advances in proteomics such as data-independent acquisition mass spectrometry (DIA-MS), cross-linking in combination with mass spectrometry (CXMS), and proximity proteomics, along with their potential to untangle the mystery of how the brain functions at the molecular level. Last but not least, we introduce the newly developed synaptomic methods. These methods and their successful applications marked the beginnings of the synaptomics era.
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Affiliation(s)
- Yalan Xu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Medical College, Qingdao University, Qingdao, 266021, China
| | - Xiuyue Song
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Medical College, Qingdao University, Qingdao, 266021, China
| | - Dong Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Medical College, Qingdao University, Qingdao, 266021, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Medical College, Qingdao University, Qingdao, 266021, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Medical College, Qingdao University, Qingdao, 266021, China
| | - Jing Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Medical College, Qingdao University, Qingdao, 266021, China.
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104
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Zhang Y, Cao X, Li P, Fan Y, Zhang L, Ma X, Sun R, Liu Y, Li W. microRNA-935-modified bone marrow mesenchymal stem cells-derived exosomes enhance osteoblast proliferation and differentiation in osteoporotic rats. Life Sci 2021; 272:119204. [PMID: 33581127 DOI: 10.1016/j.lfs.2021.119204] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/30/2021] [Accepted: 02/04/2021] [Indexed: 01/13/2023]
Abstract
AIMS The involvement of several microRNAs (miRNAs) in osteogenic differentiation has been indicated recently. Also, exosomes, derived from different cells, could shuttle specific miRNAs to other cell systems. Nevertheless, the effect and mechanism of microRNA-935 (miR-935)-containing exosomes in osteoblasts remain basically unclear. The current work was set to inspect the relevance of bone marrow mesenchymal stem cells (BMSCs)-derived exosomes (BMSC-exo) carrying miR-935 to osteoporotic rats. METHODS The extracted BMSCs and purchased osteoblasts were cultured, followed by exosome isolation and identification. After cell grouping, osteoblasts were co-cultured with BMSCs. CCK-8, alizarin red staining as well as ALP staining were performed to detect osteoblast proliferation and activity. The binding connection between miR-935 and signal transducer and activator of transcription 1 (STAT1) was measured by dual-luciferase reporter gene assays. The expression profiles of miR-935, STAT1 and osteoblast-related proteins were assessed by RT-qPCR and Western blot. A rat model with osteoporosis was induced, and the BMD, BV/TV, Tb.N, Tb.Th and Tb.Sp values in rat bone tissues were observed by Micro-CT. RESULTS BMSC-exo inhibited STAT1 levels by the delivery of miR-935 into osteoblasts, while STAT1 silencing promoted ALP activity in osteoblasts and mineralized nodules. STAT1 was identified as a target gene of miR-935. Moreover, in vivo experiments showed that in ovariectomized rats, silencing of miR-935 significantly reduced BMD, BV/TV, Tb.N, Tb.Th and increased Tb.Sp. CONCLUSION BMSC-exo carry miR-935 to promote osteoblast proliferation and differentiation through targeting STAT1.
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Affiliation(s)
- Ying Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Xiangyang Cao
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Peifeng Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Yanan Fan
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Leilei Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Xianghao Ma
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Ruibo Sun
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China.
| | - Wuyin Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang 471002, Henan, PR China.
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105
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Zong T, Yang Y, Zhao H, Li L, Liu M, Fu X, Tang G, Zhou H, Aung LHH, Li P, Wang J, Wang Z, Yu T. tsRNAs: Novel small molecules from cell function and regulatory mechanism to therapeutic targets. Cell Prolif 2021; 54:e12977. [PMID: 33507586 PMCID: PMC7941233 DOI: 10.1111/cpr.12977] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 12/18/2022] Open
Abstract
tsRNAs are small fragments of RNAs with specific lengths that are generated by particular ribonucleases, such as dicer and angiogenin (ANG), clipping on the rings of transfer RNAs (tRNAs) in specific cells and tissues under specific conditions. Depending on where the splicing site is, tsRNAs can be segmented into two main types, tRNA‐derived stress‐induced RNAs (tiRNAs) and tRNA‐derived fragments (tRFs). Many studies have shown that tsRNAs are functional molecules, not the random degradative products of tRNAs. Notably, due to their regulatory mechanism in regulating mRNA stability, transcription, ribosomal RNA (rRNA) synthesis and RNA reverse transcription, tsRNAs are significantly involved in the cell function, such as cell proliferation, migration, cycle and apoptosis, as well as the occurrence and development of a variety of diseases. In addition, tsRNAs may represent a new generation of clinical biomarkers or therapeutic targets because of their stable structures, high conservation and widely distribution, particularly in the peripheral tissues, bodily fluids and exosomes. In this review, we describe the generation, function and mechanism of tsRNAs and illustrate the current research progress of tsRNAs in various diseases, highlight their potentials as biomarkers and therapeutic targets in clinical application. Although our understanding of tsRNAs is still in infancy, the application prospects shown in this field deserve further exploration.
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Affiliation(s)
- Tingyu Zong
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Hui Zhao
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lin Li
- Department of Vascular surgery, Qingdao Hiser Medical Center, Qingdao, China
| | - Meixin Liu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiuxiu Fu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Guozhang Tang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hong Zhou
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lynn Htet Htet Aung
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jianxun Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Zhibin Wang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tao Yu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, China.,Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
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106
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Li R, Wang B, Wu C, Li D, Wu Y, Ye L, Ye L, Chen X, Li P, Yuan Y, Zhang H, Xie L, Li X, Xiao J, Wang J. Acidic fibroblast growth factor attenuates type 2 diabetes-induced demyelination via suppressing oxidative stress damage. Cell Death Dis 2021; 12:107. [PMID: 33479232 PMCID: PMC7819983 DOI: 10.1038/s41419-021-03407-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023]
Abstract
Prolonged type 2 diabetes mellitus (T2DM) produces a common complication, peripheral neuropathy, which is accompanied by nerve fiber disorder, axon atrophy, and demyelination. Growing evidence has characterized the beneficial effects of acidic fibroblast growth factor (aFGF) and shown that it relieves hyperglycemia, increases insulin sensitivity, and ameliorates neuropathic impairment. However, there is scarce evidence on the role of aFGF on remodeling of aberrant myelin under hyperglycemia condition. Presently, we observed that the expression of aFGF was rapidly decreased in a db/db T2DM mouse model. Administration of exogenous aFGF was sufficient to block acute demyelination and nerve fiber disorganization. Furthermore, this strong anti-demyelinating effect was most likely dominated by an aFGF-mediated increase of Schwann cell (SC) proliferation and migration as well as suppression of its apoptosis. Mechanistically, the beneficial biological effects of aFGF on SC behavior and abnormal myelin morphology were likely due to the inhibition of hyperglycemia-induced oxidative stress activation, which was most likely activated by kelch-like ECH-associated protein 1 (Keap1)/nuclear factor erythroid-derived-like 2 (Nrf2) signaling. Thus, this evidence indicates that aFGF is a promising protective agent for relieving myelin pathology through countering oxidative stress signaling cascades under diabetic conditions.
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Affiliation(s)
- Rui Li
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China ,grid.268099.c0000 0001 0348 3990Research Center, Affiliated Xiangshang Hospital, Wenzhou Medical University, 315700 Ningbo, Zhejiang China ,grid.12981.330000 0001 2360 039XSchool of Chemistry, Sun Yat-sen University, 510275 Guangzhou, Guangdong China
| | - Beini Wang
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Chengbiao Wu
- grid.268099.c0000 0001 0348 3990Research Center, Affiliated Xiangshang Hospital, Wenzhou Medical University, 315700 Ningbo, Zhejiang China
| | - Duohui Li
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Yanqing Wu
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Libing Ye
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Luxia Ye
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Xiongjian Chen
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Peifeng Li
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Yuan Yuan
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Hongyu Zhang
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Ling Xie
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Xiaokun Li
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Jian Xiao
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
| | - Jian Wang
- grid.268099.c0000 0001 0348 3990Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou Medical University, 325000 Wenzhou, Zhejiang China
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Abstract
Circular RNAs (circRNAs) are covalently closed circular structures that can function in various physiological and pathological processes by acting as microRNA (miRNA) sponges, RNA-binding protein (RBP) sponges, mRNA transcriptional regulators, and protein translational templates. circFoxo3 is one of the most studied circRNAs and is generated from the tumor suppressor gene Foxo3. Increasing studies have demonstrated the multiple functions of circFoxo3 in the pathogenesis of different cancer types. circFoxo3 plays important roles in cancer development mainly by binding to various miRNAs. The diagnostic potential of circFoxo3 has been revealed in several cancers. Some research results have been found to contradict the results of other studies, and this may be due to insufficient sample sizes and inconsistencies in the experimental and nomenclature methods. In this review, we systematically summarize current knowledge about the biogenesis and functions of circRNAs, elucidate the roles of circFoxo3 in different cancers, and explore the clinical applications of circFoxo3.
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Affiliation(s)
- Lei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, NO38 DengZhou Road, Qingdao 266021, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, NO38 DengZhou Road, Qingdao 266021, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, NO38 DengZhou Road, Qingdao 266021, China
| | - Yanfang Zhao
- Institute of Biomedical Research, School for Life Science, Shandong University of Technology, 266 Xincun West Road, Zibo 255000, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, NO38 DengZhou Road, Qingdao 266021, China
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108
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Yang L, Han D, Zhan Q, Li X, Shan P, Hu Y, Ding H, Wang Y, Zhang L, Zhang Y, Xue S, Zhao J, Hou X, Wang Y, Li P, Yuan X, Qi H. Erratum: Blood TfR+ exosomes separated by a pH-responsive method deliver chemotherapeutics for tumor therapy: Erratum. Theranostics 2021; 11:1543-1545. [PMID: 33408766 PMCID: PMC7778593 DOI: 10.7150/thno.55978] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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109
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Shan C, Chen X, Cai H, Hao X, Li J, Zhang Y, Gao J, Zhou Z, Li X, Liu C, Li P, Wang K. The Emerging Roles of Autophagy-Related MicroRNAs in Cancer. Int J Biol Sci 2021; 17:134-150. [PMID: 33390839 PMCID: PMC7757044 DOI: 10.7150/ijbs.50773] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022] Open
Abstract
Autophagy is a conserved catabolic process involving the degradation and recycling of damaged biomacromolecules or organelles through lysosomal-dependent pathways and plays a crucial role in maintaining cell homeostasis. Consequently, abnormal autophagy is associated with multiple diseases, such as infectious diseases, neurodegenerative diseases and cancer. Currently, autophagy is considered to be a dual regulator in cancer, functioning as a suppressor in the early stage while supporting the growth and metastasis of cancer cells in the later stage and may also produce therapeutic resistance. MicroRNAs (miRNAs) are small, non-coding RNA molecules that regulate gene expression at the post-transcriptional level by silencing targeted mRNA. MiRNAs have great regulatory potential for several fundamental biological processes, including autophagy. In recent years, an increasing number of studies have linked miRNA dysfunction to the growth, metabolism, migration, metastasis, and responses of cancer cells to therapy. Therefore, the study of autophagy-related miRNAs in cancer will provide insights into cancer biology and lead to the development of novel anti-cancer strategies. In the present review, we summarise the current knowledge of miRNA dysregulation during autophagy in cancer, focusing on the relationship between autophagy and miRNAs, and discuss their involvement in cancer biology and cancer treatment.
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Affiliation(s)
- Chan Shan
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Xinzhe Chen
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Hongjing Cai
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Xiaodan Hao
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Jing Li
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Yinfeng Zhang
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Jinning Gao
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Zhixia Zhou
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Xinmin Li
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Cuiyun Liu
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Peifeng Li
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Kun Wang
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
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Zhao C, Yang Y, An Y, Yang B, Li P. Cardioprotective role of phyllanthin against myocardial ischemia-reperfusion injury by alleviating oxidative stress and inflammation with increased adenosine triphosphate levels in the mice model. Environ Toxicol 2021; 36:33-44. [PMID: 32798296 DOI: 10.1002/tox.23008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/01/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Ischemic heart disease is an imperative cause of high morbidity and mortality globally. The cardiac ischemia/reperfusion damage occur in both reperfusion and ischemia. OBJECTIVE In this exploration, we have planned to examine the cardio-protective action of phyllanthin against the myocardial ischemic-reperfusion injury in mice. MATERIALS AND METHODS The myocardial ischemic reperfusion injury (MI-RI) stimulated via coronary artery occlusion, followed by the 10 mg/kg of phyllanthin treatment. The serum cardiac markers and pro-inflammatory markers level was investigated by using the assay kits. The expressions of oxidative stress and inflammatory markers level were investigated by immunohistochemical analysis. Lipid peroxidation, antioxidant enzymes, and ATPase levels level was examined by standard methods. The expression of oxidative stress markers were inspected by the reverse transcription polymerase chain reaction technique. The heart histology was investigated microscopically. RESULTS The phyllanthin treatment increased the body weight, and heart weight also diminished the infarct size in the MI/RI mice. Cardiac markers status was diminished and the blood pressure markers were augmented by the phyllanthin. Histological analysis revealed the protective role of phyllanthin. Suppressed lipid peroxidation and enhanced antioxidant enzymes were noted in the phyllanthin treated mice MI-RI mice. Phyllanthin appreciably suppressed the pro-inflammatory regulators that is, NF-αB p65, IL-6, IL-1β, and TNF-α and enhanced the antioxidant marker expressions. ATPase levels were improved by the phyllanthin in the MI-RI mice. CONCLUSION These novel findings were confirmed the therapeutic role of phyllanthin against the MI-RI in mice. Hence, it can be a promising agent to treat the MI-RI induced cardiac dysfunction.
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Affiliation(s)
- Cong Zhao
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yufei Yang
- College of Basic Medicine, Qingdao Binhai University, Qingdao, China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Bin Yang
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, Medical College of Qingdao University, Qingdao, China
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Qi H, Wang Y, Yuan X, Li P, Yang L. Selective extracellular arginine deprivation by a single injection of cellular non-uptake arginine deiminase nanocapsules for sustained tumor inhibition. Nanoscale 2020; 12:24030-24043. [PMID: 33291128 DOI: 10.1039/d0nr06823c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The metabolic enzyme-based arginine deprivation represents a tremendous opportunity to treat argininosuccinate synthetase (ASS1)-deficient tumors. Arginine deiminase (ADI), a typical representative, has aroused great interest. To date, the functional modification of ADI, such as PEGylation, has been applied to improve its weakness significantly, reducing its immunogenicity and extending its blood circulation time. However, the advantages of ADI, such as the cellular non-uptake property, are often deprived by current modification methods. The cellular non-uptake property of ADI only renders extracellular arginine degradation that negligibly influences normal cells. However, current-functionalized ADIs can be readily phagocytized by cells, causing the imbalance of intracellular amino acids and the consequent damage to normal cells. Therefore, it is necessary to exploit a new method that can simultaneously improve the weakness of ADI and maintain its advantage of cellular non-uptake. Here, we utilized a kind of phosphorylcholine (PC)-rich nanocapsule to load ADI. These nanocapsules possessed extremely weak cellular interaction and could avoid uptake by endothelial cells (HUVEC), immune cells (RAW 264.7), and tumor cells (H22), selectively depriving extracellular arginine. Besides, these nanocapsules increased the blood half-life time of ADI from the initial 2 h to 90 h and efficiently avoided its immune or inflammatory responses. After a single injection of ADI nanocapsules into H22 tumor-bearing mice, tumors were stably suppressed for 25 d without any detectable side effects. This new strategy first realizes the selective extracellular arginine deprivation for the treatment of ASS1-deficient tumors, potentially promoting the clinical translation of metabolic enzyme-based amino acid deprivation therapy. Furthermore, the research reminds us that the functionalization of drugs can not only improve its weakness but also maintain its advantages.
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Affiliation(s)
- Hongzhao Qi
- Institute of Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China.
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Yu K, Li P, Xu T, Xu J, Wang K, Chai J, Zhao D, Liu Y, Wang Y, Ma J, Fan L, Guo S, Li Z, Li M, Wang Z. Decreased infiltration of CD4 + Th1 cells indicates a good response to ursodeoxycholic acid (UDCA) in primary biliary cholangitis. Pathol Res Pract 2020; 217:153291. [PMID: 33249399 DOI: 10.1016/j.prp.2020.153291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Primary biliary cholangitis (PBC) is characterized by nonsuppurative destructive cholangitis and is thought to be an autoimmune disorder. Currently, ursodeoxycholic acid (UDCA) is the only FDA approved first-line therapy for PBC, but up to nearly one-third of patients do not achieve a complete response to this treatment. Adaptive immune cells, including T cells and B cells, have been found in the portal tracts and the bile duct epithelium and play a role in the pathogenesis of PBC, but the importance of these cells for evaluating the therapeutic response to UDCA in PBC has not yet been studied. METHODS In this study, we collected liver puncture biopsy specimens from 34 matched patients with PBC before and after UDCA treatment and investigated the relationship between the infiltration of adaptive immune cells and the treatment response to UDCA. The extent of immune cell infiltration was determined by immunohistochemical analysis. Responses were defined based on Paris-I criteria. RESULTS After 1 year of treatment, 25/34 patients responded to UDCA treatment according to Paris-I criteria (responders), and 9/34 patients were nonresponders. Immunohistochemical analysis showed that UDCA responders exhibited significantly less CD4+ T cell infiltration after UDCA treatment than before (50.4 ± 7.5/HPF vs 30.0 ± 7.9/HPF, P = 0.002). In contrast, UDCA nonresponders exhibited significantly more CD4+ T cell infiltration after UDCA treatment than before (32.2 ± 8.0/HPF vs 75.0 ± 13.9/HPF, P = 0.045). Moreover, patients who exhibited a reduction in CD4+ T cell infiltration after UDCA treatment had a higher response rate than those that exhibited an increase in CD4+ T cell infiltration (85.7 % vs 53.8 %, P = 0.041). However, CD3+ T cell, CD8+ T cell, and CD20+ B cell infiltration was not significantly different before and after treatment in either UDCA responders or nonresponders. Furthermore, we found that the number of infiltrating T-bet+ Th1 cells was much lower after UDCA treatment than before in responders (10.5 ± 5.7/HPF vs. 5.16 ± 4.0/HPF, P = 0.0214) but much higher in nonresponders after treatment than before (1.89±1.2/HPF vs. 12.3±5.4/HPF, P = 0.043). However, there was no difference in the extent of GATA3+ Th2 or FOXP3+ Treg infiltration before and after treatment in either UDCA responders or nonresponders. CONCLUSION Collectively, our results suggest that a decrease in the number of liver-infiltrating CD4+ Th1 cells is associated with a good response of PBC patients to UDCA treatment. Immunohistochemical analysis of CD4 and T-bet in PBC liver specimens may be a potential approach for evaluating the therapeutic response to UDCA.
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Affiliation(s)
- Kangjie Yu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Peifeng Li
- Department of Pathology, The 960th Hospital of PLA, Jinan 250000, China
| | - Tianqi Xu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Junpeng Xu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Kaijing Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Jia Chai
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Danhui Zhao
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Jing Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Zengshan Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China.
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China.
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China.
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Abstract
Cardiovascular diseases (CVDs) remain the world's leading cause of death. Cardiomyocyte autophagy helps maintain normal metabolism and functioning of the heart. Importantly, mounting evidence has revealed that autophagy plays a dual role in CVD pathology. Under physiological conditions, moderate autophagy maintains cell metabolic balance by degrading and recycling damaged organelles and proteins, and it promotes myocardial survival, but excessive or insufficient autophagy is equally deleterious and contributes to disease progression. Noncoding RNAs (ncRNAs) are a class of RNAs transcribed from the genome, but most ncRNAs do not code for functional proteins. In recent years, increasingly, various ncRNAs have been identified, and they play important regulatory roles in the physiological and pathological processes of organisms, as well as in autophagy. Thus, determining whether ncRNA-regulated autophagy plays a protective role in CVDs or promotes their progression can help us to develop ncRNAs as therapeutic targets in autophagy-related CVDs. In this review, we briefly summarize the regulatory roles of several important ncRNAs, including microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs), in the autophagy of various CVDs to provide a theoretical basis for the etiology and pathogenesis of CVDs and develop novel therapies to treat CVDs.
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Affiliation(s)
- Jinning Gao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Xiatian Chen
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Chan Shan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Kai Shao
- Department of Central Laboratory, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong 266035, China
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114
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Zhang L, Zhang Y, Wang Y, Zhao Y, Ding H, Li P. Circular RNAs: Functions and Clinical Significance in Cardiovascular Disease. Front Cell Dev Biol 2020; 8:584051. [PMID: 33134301 PMCID: PMC7550538 DOI: 10.3389/fcell.2020.584051] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/09/2020] [Indexed: 01/01/2023] Open
Abstract
Cardiovascular disease (CVD) causes high morbidity and mortality worldwide. Accumulating research has indicated the possible roles played by circular RNAs (circRNAs) in the pathogenesis of CVD. CircRNAs are non-coding RNAs with covalently closed loop structures. CircRNAs can function by acting as miRNA sponges, RNA binding protein sponges, mRNA transcriptional regulators and templates for protein translation. The specific characteristics of circRNAs such as high stability, abundant distribution, and tissue- and developmental stage-specific expression make them potential biomarkers for the diagnosis and prognosis of CVD. In this paper, we systematically summarized the current knowledge regarding the biogenesis, biological properties and the action mechanisms of circRNAs, elucidated the roles played by circRNAs in the pathogenesis of CVD, and explored the diagnostic potential of circRNAs in CVD. With in-depth studies, an increasing number of molecular mechanisms underlying the participation of circRNAs in CVD may be elucidated, and the application of circRNAs in the clinical diagnosis and prevention of CVD may eventually be realized.
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Affiliation(s)
- Lei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yanfang Zhao
- Institute of Biomedical Research, School for Life Science, Shandong University of Technology, Zibo, China
| | - Han Ding
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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115
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Zhou Z, Gong Q, Lin Z, Wang Y, Li M, Wang L, Ding H, Li P. Emerging Roles of SRSF3 as a Therapeutic Target for Cancer. Front Oncol 2020; 10:577636. [PMID: 33072610 PMCID: PMC7544984 DOI: 10.3389/fonc.2020.577636] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/28/2020] [Indexed: 12/14/2022] Open
Abstract
Ser/Arg-rich (SR) proteins are RNA-binding proteins known as constitutive and alternative splicing (AS) regulators that regulate multiple aspects of the gene expression program. Ser/Arg-rich splicing factor 3 (SRSF3) is the smallest member of the SR protein family, and its level is controlled by multiple factors and involves complex mechanisms in eukaryote cells, whereas the aberrant expression of SRSF3 is associated with many human diseases, including cancer. Here, we review state-of-the-art research on SRSF3 in terms of its function, expression, and misregulation in human cancers. We emphasize the negative consequences of the overexpression of the SRSF3 oncogene in cancers, the pathways underlying SRSF3-mediated transformation, and implications of potential anticancer drugs by downregulation of SRSF3 expression for cancer therapy. Cumulative research on SRSF3 provides critical insight into its essential part in maintaining cellular processes, offering potential new targets for anti-cancer therapy.
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Affiliation(s)
- Zhixia Zhou
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Qi Gong
- Departments of Pediatrics, Second Clinical Medical College of Qingdao University, Qingdao, China
| | - Zhijuan Lin
- Key Laboratory for Immunology in Universities of Shandong Province, School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Mengkun Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Lu Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Hongfei Ding
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
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116
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Zhang L, Ding H, Zhang Y, Wang Y, Zhu W, Li P. Circulating MicroRNAs: Biogenesis and Clinical Significance in Acute Myocardial Infarction. Front Physiol 2020; 11:1088. [PMID: 33013463 PMCID: PMC7494963 DOI: 10.3389/fphys.2020.01088] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
Acute myocardial infarction (AMI) causes many deaths around the world. Early diagnosis can prevent the development of AMI and provide theoretical support for the subsequent treatment. miRNAs participate in the AMI pathological processes. We aim to determine the early diagnostic and the prognostic roles of circulating miRNAs in AMI in the existing studies and summarize all the data to provide a greater understanding of their utility for clinical application. We reviewed current knowledge focused on the AMI development and circulating miRNA formation. Meanwhile, we collected and analyzed the potential roles of circulating miRNAs in AMI diagnosis, prognosis and therapeutic strategies. Additionally, we elaborated on the challenges and clinical perspectives of the application of circulating miRNAs in AMI diagnosis. Circulating miRNAs are stable in the circulation and have earlier increases of circulating levels than diagnostic golden criteria. In addition, they are tissue and disease-specific. All these characteristics indicate that circulating miRNAs are promising biomarkers for the early diagnosis of AMI. Although there are several limitations to be resolved before clinical use, the application of circulating miRNAs shows great potential in the early diagnosis and the prognosis of AMI.
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Affiliation(s)
- Lei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Han Ding
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Wenjie Zhu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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117
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Yu F, Li P, Du S, Lui KW, Lin Y, Chen L, Ren Q, Wang J, Mei J, Xiao J, Zhu J. Olfactory ensheathing cells seeded decellularized scaffold promotes axonal regeneration in spinal cord injury rats. J Biomed Mater Res A 2020; 109:779-787. [PMID: 32720459 DOI: 10.1002/jbm.a.37066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/09/2020] [Accepted: 07/11/2020] [Indexed: 01/01/2023]
Abstract
Spinal cord decellularized (DC) scaffolds can promote axonal regeneration and restore hindlimb motor function of spinal cord defect rats. However, scarring caused by damage to the astrocytes at the margin of injury can hinder axon regeneration. Olfactory ensheathing cells (OECs) integrate and migrate with astrocytes at the site of spinal cord injury, providing a bridge for axons to penetrate the scars and grow into lesion cores. The purpose of this study was to evaluate whether DC scaffolds carrying OECs could better promote axon growth. For these studies, DC scaffolds were cocultured with primary extracted and purified OECs. Immunofluorescence and electron microscopy were used for verification of cells adhere and growth on the scaffold. Scaffolds with OECs were transplanted into rat spinal cord defects to evaluate axon regeneration and functional recovery of hind limbs. Basso, Beattie, and Bresnahan (BBB) scoring was used to assess motor function recovery, and glial fibrillary acidic protein (GFAP) and NF200-stained tissue sections were used to evaluate axonal regeneration and astrological scar distribution. Our results indicated that spinal cord DC scaffolds have good histocompatibility and spatial structure, and can promote the proliferation of adherent OECs. In animal experiments, scaffolds carrying OECs have better axon regeneration promoting protein expression than the SCI model, and improve the proliferation and distribution of astrocytes at the site of injury. These results proved that the spinal cord DC scaffold with OECs can promote axon regeneration at the site of injury, providing a new basis for clinical application.
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Affiliation(s)
- Fangzheng Yu
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Peifeng Li
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shenghu Du
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - KoonHei W Lui
- Department of Plastic Surgery, The First affiliated hospital of Sun Yat-Sen University, Guangdong, China
| | - Yutian Lin
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lumin Chen
- Wenzhou Medical University, Wenzhou, China
| | - Qi Ren
- Wenzhou Medical University, Wenzhou, China
| | - Jian Wang
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jin Mei
- Institute of Neuroscience, Wenzhou Medical University, Wenzhou, China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Junyi Zhu
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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118
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Li Z, Chen X, Liu Z, Ye W, Li L, Qian L, Ding H, Li P, Aung LHH. Recent Advances: Molecular Mechanism of RNA Oxidation and Its Role in Various Diseases. Front Mol Biosci 2020; 7:184. [PMID: 32850971 PMCID: PMC7413073 DOI: 10.3389/fmolb.2020.00184] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022] Open
Abstract
Compared with the research on DNA damage, there are fewer studies on RNA damage, and the damage mechanism remains mostly unknown. Recent studies have shown that RNA is more vulnerable to damage than DNA when the cells are exposed to endogenous and exogenous insults. RNA injury may participate in a variety of disease occurrence and development. RNA not only has important catalytic functions and other housekeeping functions, it also plays a decisive role in the translation of genetic information and protein biosynthesis. Various kinds of stressors, such as ultraviolet, reactive oxygen species and nitrogen, can cause damage to RNA. It may involve in the development and progression of diseases. In this review, we focused on the relationship between the RNA damage and disease as well as the research progress on the mechanism of RNA damage, which is of great significance for the pathogenesis, diagnosis, and treatment of related diseases.
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Affiliation(s)
- Zhe Li
- Center for Molecular Genetics, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.,School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xiatian Chen
- Center for Molecular Genetics, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.,School of Basic Medicine, Qingdao University, Qingdao, China
| | - Ziqian Liu
- Center for Molecular Genetics, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.,School of Basic Medicine, Qingdao University, Qingdao, China
| | - Wei Ye
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Device, Huaiyin Institute of Technology, Huaian, China
| | - Ling Li
- School of Basic Medicine, Qingdao University, Qingdao, China
| | - Lili Qian
- Center for Molecular Genetics, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Hongyan Ding
- Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Device, Huaiyin Institute of Technology, Huaian, China
| | - Peifeng Li
- Center for Molecular Genetics, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Lynn Htet Htet Aung
- Center for Molecular Genetics, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China.,School of Basic Medicine, Qingdao University, Qingdao, China
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119
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Li P, Cao K, Gao L, Liao W, Liu J, Sun X, Wang H, Rao F, Lu Y. Cold welding assisted self-healing of fractured ultrathin Au nanowires. Nano Ex 2020. [DOI: 10.1088/2632-959x/aba684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
In nano-electronic field, cold welding is a simple novel method to join ultrathin noble metal nanowires (NWs) without introducing extra energy and defects. In previous works, it always occurred between ultrathin noble metal NWs, tensile fracture parts of a single NW, or a NW formation from nanoparticles. However, some external force is still needed to drive the materials as close to each other as possible before the process. Here, we proposed a new method to achieve cold welding without introducing artificial loadings. The bending fractured ultrathin gold (Au) NW can be self-healed assisted by cold welding during the removal of the tungsten (W) tip by in situ transmission electron microscope (TEM). A new interface with lattice mismatch formed in the welding zone after multiple periodic cycles, leaving an angle between the two rebonded fracture parts. Furthermore, the cold welding assisted self-healing of the bending fractured ultrathin Au NW and atom evolutions were also confirmed by molecular dynamics (MD) simulations. The successful implementation of cold welding makes the self-healing come true when the ultrathin Au NW fractures under the unexpected vibrations.
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120
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Li P, Liao W, Yue L, Fan Z, Rao F. Key factors affecting Rayleigh instability of ultrathin 4H hexagonal gold nanoribbons. Nanoscale Adv 2020; 2:3027-3032. [PMID: 36132405 PMCID: PMC9419477 DOI: 10.1039/d0na00186d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/22/2020] [Indexed: 06/15/2023]
Abstract
Rayleigh instability was originally used to describe the phenomenon of a cylindrical fluid jet that transforms into a chain of droplets. Very recently, it has been extended to metallic nanostructures like gold (Au) and silver (Ag) nanowires (NWs), as well as mixed alloy NWs by some thermodynamic processes. To date, the key factors affecting the Rayleigh instability have not been well studied. To clarify this, we systematically investigate the features of Rayleigh instability in ultrathin 4H hexagonal Au nanoribbons (NRBs) under electron beam (E-beam) irradiation. We prove that by decreasing the initial widths of 4H Au NRBs and the E-beam current density, as well as the irradiation time and intensity per unit area, the Rayleigh instability can be effectively restrained. Our work thus sheds light on how to effectively reduce or even eliminate the Rayleigh instability of one dimensional nanomaterials.
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Affiliation(s)
- Peifeng Li
- College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 China
| | - Weibing Liao
- College of Physics and Energy, Shenzhen University Shenzhen 518060 China
| | - Lijie Yue
- School of Materials Science and Engineering, Shandong University of Science and Technology Qingdao 266590 China
| | - Zhanxi Fan
- Department of Chemistry, City University of Hong Kong Kowloon 999077 Hong Kong China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong Hong Kong China
| | - Feng Rao
- College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 China
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Wang M, Yu F, Li P, Wang K. Emerging Function and Clinical Significance of Exosomal circRNAs in Cancer. Mol Ther Nucleic Acids 2020; 21:367-383. [PMID: 32650235 PMCID: PMC7340966 DOI: 10.1016/j.omtn.2020.06.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/18/2020] [Accepted: 06/09/2020] [Indexed: 02/08/2023]
Abstract
Exosomes are a type of extracellular vesicles (EVs) secreted by almost all cells, with a diameter range of 30-150 nm and a lipid bilayer membrane. Exosomes are now considered as vital mediators of intercellular communication and participate in multiple cellular processes, such as signal transduction and antigen presentation. Recently, circular RNAs (circRNAs), a novel class of noncoding RNAs (ncRNAs), have been found to be abundant and stable in exosomes. Increasing evidence indicates that exosome-derived circRNAs act as signaling molecules to regulate cancer growth, angiogenesis, invasion, metastasis, and sensitivity to chemotherapy. Moreover, circulating exosomal circRNAs can reflect the progression and malignant characteristics of cancer, implying their great potential as promising, non-invasive biomarkers for cancer diagnosis and prognosis. In this review, we summarize the recent progress on the functional roles of exosomal circRNAs in cancer progression, discussing their potential as promising biomarkers and therapeutic targets in cancer. Comprehensive elucidation of molecular mechanisms relevant to the implications of exosomal circRNAs in cancer progression will be conducive to the development of innovative diagnostic and therapeutic approaches in cancer.
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Affiliation(s)
- Man Wang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China.
| | - Fei Yu
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Peifeng Li
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Kun Wang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China.
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Li B, Wang X, Hao X, Liu Y, Wang Y, Shan C, Ao X, Liu Y, Bao H, Li P. A novel c.2179T>C mutation blocked the intracellular transport of PHEX protein and caused X-linked hypophosphatemic rickets in a Chinese family. Mol Genet Genomic Med 2020; 8:e1262. [PMID: 32511895 PMCID: PMC7434742 DOI: 10.1002/mgg3.1262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/23/2020] [Indexed: 12/13/2022] Open
Abstract
Background X‐linked hypophosphatemic rickets (XLH) is a heterogeneous genetic phosphate wasting disorder that occupies the majority of inheritable hypophosphatemic rickets (HR). XLH is caused by loss‐of‐function mutations in the phosphate‐regulating endopeptidase gene (PHEX) located on the X chromosome. Method In this study, we performed whole‐exome sequencing (WES) on the proband to identify the causative gene. The mutations were analyzed by predictive online software, such as PolyPhen‐2. Plasmids containing the wild‐type (WT) and mutant cDNA of the candidate gene were transfected into HEK293, then, the expression, cellular localization, and glycosylation state of the candidate proteins were detected by western blot, immunostaining, and endoglycosidase H digestion. The expression and concentration of related factor were measured by RT‐PCR and ELISA. Results We identified a novel missense mutation c.2179T>C in the PHEX that results in the substitution of p.Phe727Leu (F727L). This mutation was predicted to be disease‐causing by all four predictive online software. In vitro studies demonstrated that the F727L substitution hindered the intracellular trafficking of the mutant PHEX, with ~59% of mutant PHEX protein retained in the endoplasmic reticulum (ER) and only ~16% of the mutant protein localized on the cell surface. Endoglycosidase H digestion assay showed that the mutant F727L PHEX protein was not fully glycosylated. The concentration of intact FGF23 in hFOB1.19 cell culture medium collected from the mutant PHEX group was the highest (62.9 pg/ml) compared to the WT group (32.1 pg/ml) and control group (23.5 pg/ml). Conclusion Our results confirmed that the mutant PHEX protein was lowly glycosylated and retarded within the ER, the intact FGF23 level in cell culture media caused by the mutant PHEX protein was significantly elevated compared to that of the WT group, which may explain why the single base mutation in the PHEX led to XLH syndrome in this family.
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Affiliation(s)
- Baowei Li
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Xiong Wang
- Department of Reproductive Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Xiaodan Hao
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Yanran Liu
- School of Basic Medicine, Qingdao University, Qingdao, China
| | - Yin Wang
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Chan Shan
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Xiang Ao
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Ying Liu
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - HongChu Bao
- Department of Reproductive Medicine, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Peifeng Li
- Institute for Translational Medicine, Qingdao University, Qingdao, China
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Yu Z, Li Q, Wang J, Yu Y, Wang Y, Zhou Q, Li P. Reactive Oxygen Species-Related Nanoparticle Toxicity in the Biomedical Field. Nanoscale Res Lett 2020; 15:115. [PMID: 32436107 PMCID: PMC7239959 DOI: 10.1186/s11671-020-03344-7] [Citation(s) in RCA: 223] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/10/2020] [Indexed: 05/19/2023]
Abstract
The unique physicochemical characteristics of nanoparticles have recently gained increasing attention in a diverse set of applications, particularly in the biomedical field. However, concerns about the potential toxicological effects of nanoparticles remain, as they have a higher tendency to generate excessive amounts of reactive oxygen species (ROS). Due to the strong oxidation potential, the excess ROS induced by nanoparticles can result in the damage of biomolecules and organelle structures and lead to protein oxidative carbonylation, lipid peroxidation, DNA/RNA breakage, and membrane structure destruction, which further cause necrosis, apoptosis, or even mutagenesis. This review aims to give a summary of the mechanisms and responsible for ROS generation by nanoparticles at the cellular level and provide insights into the mechanics of ROS-mediated biotoxicity. We summarize the literature on nanoparticle toxicity and suggest strategies to optimize nanoparticles for biomedical applications.
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Affiliation(s)
- Zhongjie Yu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Qi Li
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, China
| | - Jing Wang
- Oral Research Center, Qingdao Municipal Hospital, Qingdao, 266011, China
| | - Yali Yu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China
| | - Qihui Zhou
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China.
- Center for Stomatology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266021, China.
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Hu M, Yu J, Zhou Z, Li P, Zhang X, Zhai L, Fan T, Tian S, Xu J, Yang X, Xu J, Yu S, Wang D, Dong W, Cao X, Yan H, Sun M, Ding X, Xing J, Zhang P. Identifying the distant metastasis genes by next-generation sequencing panel in nasopharyngeal carcinoma. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.e18547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e18547 Background: Even though local and regional controls have been substantially improved in nasopharyngeal carcinoma (NPC) in the contemporary era of intensity-modulated radiotherapy with extensive use of combined chemotherapy, the distant metastasis becomes the major cause of treatment failure and cancer-related death. To date, the genes contributed to metastasis of NPC is still unclear. The aim of this study was to identify the genes which lead to distant metastasis. Methods: A total of forty primary nonkeratinizing NPC patients were diagnosed at Shandong Cancer Hospital in this study. The formaldehyde-fixed paraffin embedded (FFPE) taken from primary sites or metastatic lymph nodes were performed next-generation sequencing (NGS) panel (Shanghai OrigiMed Co., Ltd.) to determine variated genes, such as single nucleotide variants (SNV), copy number variants (CNV) and rearrangement. These patients were followed up until Febr. 8, 2020. The genes related to distant metastasis were identified by logistic regression. Moreover, this study compared the frequency of mutated gene between our data and Catalog of Somatic Mutations in Cancer (COSMIC) database by the Chi-square test or Fisher’s exact test. Results: The study included 31 men and 9 women. The median age of the patients at diagnosis was 47 years (range 15–71 years). With the median follow-up of 10.6 months (range 16.8–72.3 months), 7 patients had distant metastasis and 1 undergone recurrent. Notably, EMSY and MCL1 variants were contributed to NPC distant metastasis (OR = 31, P = 0.049). The top eight SNV of genes in our study were CYLD, KMT2D, BAP1, EP300, TP53, ATM, NFKBIA and SPEN. When compared to COSMIC database, the mutant frequencies of CYLD, EP300 and BAP1 in our study were significantly higher than that of COSMIC database. However, the mutant frequencies of IDH2 and KMT2C were significantly lower than COSMIC database. Conclusions: This is the first study which suggests that EMSY and MCL1 variants were involved in the metastasis of NPC. The study identified 5 genes, which mutation frequency is significantly different from the COSMIC database. The study provided a molecular basis for a comprehensive understanding of, and exploring targeted therapies for nasopharyngeal carcinoma.
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Affiliation(s)
- Man Hu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Jinming Yu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Science, Jinan, China
| | - Zihan Zhou
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Peifeng Li
- Jinan Military General Hospital, Jinan, China
| | - Xianbin Zhang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Limin Zhai
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Tingyong Fan
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shiyu Tian
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Juan Xu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xinhua Yang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Jin Xu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shui Yu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Dongqing Wang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Wei Dong
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiujuan Cao
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Hongjiang Yan
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Mingping Sun
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiuping Ding
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Jun Xing
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Peng Zhang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
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Li B, Li Y, Hu L, Liu Y, Zhou Q, Wang M, An Y, Li P. Role of Circular RNAs in the Pathogenesis of Cardiovascular Disease. J Cardiovasc Transl Res 2020; 13:572-583. [PMID: 32399680 DOI: 10.1007/s12265-019-09912-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 09/02/2019] [Indexed: 02/06/2023]
Abstract
Circular RNAs (circRNAs) are single-strand covalently closed circular noncoding RNAs that are endogenous transcripts generated from linear precursor mRNA through a backsplicing mechanism. With the development of high-throughput sequencing technology, a number of circRNAs have been identified and proved to play key roles in various pathophysiological processes, such as metabolic diseases, cancers, and cardiovascular diseases. An increasing number of studies have shown that circRNAs are widely expressed in cardiac tissues and play important roles in the development of multiple cardiovascular diseases. Here, we review the current understanding of circRNA biogenesis and functions and the roles of circRNAs in cardiovascular diseases. We also highlight the molecular mechanisms underlying the role of circRNAs in the pathogenesis of cardiovascular diseases. A better understanding of the biological function of circRNAs in cardiovascular diseases will be helpful for the development of effective biomarkers for the diagnosis and treatment of these diseases.
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Affiliation(s)
- Baowei Li
- Institute for Translational Medicine, Qingdao University, Qingdao, 266021, China
| | - Yuzhen Li
- Department of Pathophysiology, Institute of Basic Medical Science, PLA General Hospital, Beijing, 100853, China
| | - Longgang Hu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China
| | - Ying Liu
- Institute for Translational Medicine, Qingdao University, Qingdao, 266021, China
| | - Qihui Zhou
- Institute for Translational Medicine, Qingdao University, Qingdao, 266021, China
| | - Man Wang
- Institute for Translational Medicine, Qingdao University, Qingdao, 266021, China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266021, China.
| | - Peifeng Li
- Institute for Translational Medicine, Qingdao University, Qingdao, 266021, China.
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Sun D, Cheng Z, Jiang TC, Li PF, Jia LQ, Wang TT, Zheng CP, Li Y, Duo MJ. [Characteristics and clinical significance of pulmonary function test and KL-6 in ASSD-ILD and IPF]. Zhonghua Yi Xue Za Zhi 2020; 100:748-752. [PMID: 32192286 DOI: 10.3760/cma.j.cn112137-20191008-02166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the characteristics and clinical significance of pulmonary function test and kerbs von den lungen 6 (KL-6) in anti-synthetase syndrome related interstitial lung disease (ASSD-ILD) and idiopathic pulmonary fibrosis (IPF). Methods: The clinical data of 43 patients with ASSD-ILD (ASSD-ILD group) from May 2015 to May 2017 were collected retrospectively, including 12 males and 31 females, and 34 patients with IPF (IPF group) treated in the First Affiliated Hospital of Zhengzhou University during the same period, including 28 males and 6 females, were also included. The basic information, and the value of pulmonary function test [pulmonary function parameters included the forced vital capacity expressed as percent predicted (FVC%pred), the forced expiratory volume in 1 second expressed as percent predicted (FEV(1)%pred), the ratio of FVC to FEV(1) (FVC/FEV(1)), the peak expiratory flow expressed as percent predicted (PEF%pred), the forced expiratory flow at 25%, 50%, 75% of FVC as percent predicted (FEF(25)%pred, FEF(50)%pred, and FEF(75)%pred), the maximum mid-expiratory flow as percent predicted (MMEF% pred), and the diffusing capacity for carbon monoxide as percent predicted (DLCO% pred)], and serum KL-6 level in ASSD-ILD and IPF were compared. Results: The FEV(1)%pred, FEF(50)%pred, FEF(75)%pred, and MMEF%pred values in ASSD-ILD group were significantly lower than those in IPF group (all P<0.05), while the FVC% pred, FVC/FEV(1), PEF% pred, FEF(25)%pred, and DLCO% pred values in ASSD-ILD group had no significant difference compared with IPF group (all P>0.05). There was no significant difference in serum KL-6 level between ASSD-ILD group and IPF group [(1 169±911) vs (1 210±908) U/ml, t=0.62, P=0.463]. Follow-up analysis showed that the serum KL-6 level of ASSD-ILD patients who died within two years was significantly higher than that of survivors [(2 060±1 168) vs (1 042±858) U/ml, t=2.93, P=0.041]. The serum KL-6 level of patients who died within two years of IPF patients was also significantly higher than that of patients who survived [(1 767±865) vs (1 089±894) U/ml, t=2.53, P=0.026]. The serum KL-6 level in ASSD-ILD group was negatively correlated with FVC%pred (r=-0.43, P=0.004), FEV(1)%pred (r=-0.39, P=0.010) and DLCO% pred (r=-0.41, P=0.006). There was no correlation between serum KL-6 level and pulmonary function test indexes in IPF group (all P>0.05). Conclusions: There is difference in pulmonary function test between ASSD-ILD patients and IPF patients. High serum KL-6 level will be predictive of poor prognosis.
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Affiliation(s)
- D Sun
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University; Institute of Clinical Medical Research of Universities of Henan; Henan Key Laboratory for Pharmacology of Liver Diseases, Zhengzhou 450052, China
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Ma J, Li M, Chai J, Wang K, Li P, Liu Y, Zhao D, Xu J, Yu K, Yan Q, Guo S, Wang Z, Fan L. Expression of RSK4, CD44 and MMP-9 is upregulated and positively correlated in metastatic ccRCC. Diagn Pathol 2020; 15:28. [PMID: 32209138 PMCID: PMC7093975 DOI: 10.1186/s13000-020-00948-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 03/19/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND To investigate the expression and function of RSK4, MMP-9 and CD44 in primary clear cell renal cell carcinoma (primary ccRCC) and metastatic clear cell renal cell carcinoma (metastatic ccRCC), as well as the correlation with clinicopathological features of patients. METHOD The expression levels of RSK4, CD44 and MMP-9 in 52 primary ccRCC samples and 48 metastatic ccRCC samples were detected by immunohistochemistry, and the relationship between RSK4, CD44 and MMP-9 expression and clinicopathological features as well as prognosis of metastatic ccRCC patients was statistically analysed. Ectopic RSK4 expression in ccRCC cell lines was performed to determine its effect on cell cycle regulation, tumour invasiveness, and metastatic capability. RESULTS The positive rates of RSK4, MMP-9 and CD44 expression in metastatic ccRCC tissues were 75, 68.75 and 91.7%, respectively, while the rates in primary ccRCC tissues were 44.2, 34.6 and 69.2%, respectively. Thus, the positive rates in metastatic ccRCC were higher than those in primary ccRCC (PRSK4 = 0. 002; PMMP-9 = 0. 002; PCD44 = 0. 001). However, the expression of RSK4, CD44 and MMP-9 was unrelated to age, gender, or metastatic sites (P > 0.05) but was related to WHO/ISUP nucleolar grade (PRSK4 = 0.019; PCD44 = 0.026; PMMP-9 = 0.049). In metastatic ccRCC, expression among the three proteins showed a positive correlation (P = 0.008). Moreover, expression between RSK4 and CD44 (P = 0.019) and MMP-9 and CD44 (P = 0.05) also showed positive correlations, whereas RSK4 and MMP-9 showed no significant correlation (P = 1.00). Molecular studies showed that overexpression of RSK4 could enhance the invasive and migratory abilities of ccRCC cell lines through the regulation of CD44 and MMP-9 expression and vice versa. CONCLUSIONS The overexpression of RSK4, MMP-9 and CD44 is associated with the invasion and metastasis of ccRCC, indicating that they could be potential prognostic factors and serve as new potential therapeutic targets for ccRCC.
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Affiliation(s)
- Jing Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Jia Chai
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Kaijing Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Peifeng Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
- Department of Pathology, The 960th Hospital of PLA, Jinan, Shandong China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Danhui Zhao
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Junpeng Xu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Kangjie Yu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Qingguo Yan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Changle West Road #169, Xi’an, 710032 Shaan Xi Province China
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Li P, Li M, Wang K, Liu Y, Wang Y, Zhao D, Chai J, Ma J, Li X, Wei J, Fan L, Zhang F, Ye J, Yan Q, Guo S, Wang Z. Genetic alterations in cell cycle regulation-associated genes may promote primary progression of gastrointestinal stromal tumors. J Transl Med 2020; 100:426-437. [PMID: 31570771 DOI: 10.1038/s41374-019-0322-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 08/21/2019] [Indexed: 11/09/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are one of the most common mesenchymal tumor types and usually contain KIT or PDGFRA mutations. GISTs with concomitant low- and high-grade components are seen in clinical practice. Herein, we retrospectively analyzed the histological characteristics and immunohistochemical results of 22 GIST cases with concomitant low- and high-grade tumors. Whole-exome sequencing (WES) was performed on ten pairs of high-grade GIST specimens and matched low-grade samples. Differential oncogenes mutated only in high-grade GISTs were identified, which were confirmed by Sanger sequencing. Fluorescence in situ hybridization was employed to detect MYC copy number variation. High-grade GISTs were more likely to have lower CD34 expression and a higher Ki-67 proliferation index compared to the matched low-grade tumors. WES identified 30 differential cancer-associated genes mutated only in high-grade GISTs; Sanger sequencing confirmed ten relevant differential oncogenic mutations in nine genes (MGA, ARID1A, LATS2, MAX, PIK3CA, RB1, RPS6KB2, SDHA, and SETD2). Two patients had MGA mutations, whereas other gene mutations occurred in only one patient. Most of the differential cancer-associated genes are mainly involved in cell cycle control. MYC copy number gain was a common genetic variation. High-grade GISTs revealed more MYC copy number gains than matched low-grade tumors, and low-grade GISTs with coexisting high-grade components showed more MYC copy number gains than pure low-grade GISTs. Moreover, MYC copy number gain was positively correlated with the mitotic index and Ki-67 proliferation index. Alterations in cell cycle regulation-associated genes, such as genetic mutations and MYC copy number gain, may promote primary progression from low-grade GISTs to high-grade tumors by regulating tumor cell proliferation.
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Affiliation(s)
- Peifeng Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China.,Department of Pathology, The 960th Hospital of PLA, Jinan, Shandong, China
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Kaijing Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Danhui Zhao
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Jia Chai
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Jing Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Xia Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Jie Wei
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Feng Zhang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Jing Ye
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Qingguo Yan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, The Fourth Military Medical University, Xi'an, Shaan Xi, China.
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Li P, Xiao G, Zhao Y, Su H. Tuning the Product Selectivity of the α-Alkylation of Ketones with Primary Alcohols using Oxidized Titanium Nitride Photocatalysts and Visible Light. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04921] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Peifeng Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Gang Xiao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yilin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Haijia Su
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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130
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Zhang Y, Cao X, Li P, Fan Y, Zhang L, Li W, Liu Y. PSMC6 promotes osteoblast apoptosis through inhibiting PI3K/AKT signaling pathway activation in ovariectomy-induced osteoporosis mouse model. J Cell Physiol 2020; 235:5511-5524. [PMID: 32017075 DOI: 10.1002/jcp.29261] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 09/03/2019] [Indexed: 12/17/2022]
Abstract
There is now increasing evidence which suggests a key role for osteoblast apoptosis in the pathogenesis of postmenopausal osteoporosis. Here, we evaluated the role and mechanism of proteasome 26S subunit, ATPase (PSMC) 6, a protein that is highly expressed in bone. Gene expression pattern had been extracted based on database of Gene Expression Omnibus (GEO). GEO2R was employed for analyses, while the DAVID database was adopted to further analyze the gene ontology (GO) as well as Kyoto Encyclopedia of Genomes pathway (KEGG) enrichment. Then, the Search Tool Retrieval of Interacting Genes (STRING) was utilized to carry out interaction regulatory network for the top 200 differentially expressed genes (DEGs). A key gene, called PSMC6, was identified by Cytoscape 3.6.0. The OVX osteoporosis model was established in female C57BL/6 mice by full bilateral ovariectomy. According to our findings, PSMC6 gene knockout would elevate bone mineral density (BMD) and the phosphorylation level of PI3K protein and increased the protein level of cleaved caspase-3/-9 in OVX osteoporosis mice. Further, MTT, bromodeoxyuridine, and flow cytometry assays revealed that PSMC6 inhibition promoted the progression of cell cycle and cell proliferation, whereas, PSMC6 overexpression promoted the apoptosis and inhibited cell cycle progression and cell proliferation in vitro. Besides, we found that PI3K activation significantly decreased PSMC6-induced osteoblast apoptosis and promoted cell proliferation through regulating the protein levels of p53, cyclinD1, and cleaved caspase-3/9. In conclusion, PSMC6 aggravated the degree of OVX-induced osteoporosis by inhibiting the PI3K/AKT signal transduction pathway, thereby promoting the apoptosis of osteoblasts.
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Affiliation(s)
- Ying Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
| | - Xiangyang Cao
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
| | - Peifeng Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
| | - Yanan Fan
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
| | - Leilei Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
| | - Wuyin Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang City, Henan Province, China
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131
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Qi H, Yang L, Shan P, Zhu S, Ding H, Xue S, Wang Y, Yuan X, Li P. The Stability Maintenance of Protein Drugs in Organic Coatings Based on Nanogels. Pharmaceutics 2020; 12:E115. [PMID: 32024083 PMCID: PMC7076513 DOI: 10.3390/pharmaceutics12020115] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/17/2020] [Accepted: 01/27/2020] [Indexed: 12/30/2022] Open
Abstract
Protein drugs are often loaded on scaffolds with organic coatings to realize a spatiotemporal controlled release. The stability or activity of protein drugs, however, is largely affected by the organic coating, particularly with organic solvents, which can dramatically reduce their delivery efficiency and limit their application scope. In spite of this, little attention has been paid to maintaining the stability of protein drugs in organic coatings, to date. Here, we used catalase as a model protein drug to exploit a kind of chemically cross-linked nanogel that can efficiently encapsulate protein drugs. The polymeric shells of nanogels can maintain the surface hydration shell to endow them with a protein protection ability against organic solvents. Furthermore, the protection efficiency of nanogels is higher when the polymeric shell is more hydrophilic. In addition, nanogels can be dispersed in polylactic acid (PLA) solution and subsequently coated on scaffolds to load catalase with high activity. To the best of our knowledge, this is the first use of hydrophilic nanogels as a protection niche to load protein drugs on scaffolds through an organic coating, potentially inspiring researchers to exploit new methods for protein drug loading.
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Affiliation(s)
- Hongzhao Qi
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
| | - Lijun Yang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
| | - Peipei Shan
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
| | - Sujie Zhu
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
| | - Han Ding
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
| | - Sheng Xue
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
| | - Yin Wang
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;
| | - Peifeng Li
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China; (P.S.); (S.Z.); (H.D.); (S.X.); (Y.W.); (P.L.)
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132
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Affiliation(s)
- Zhiyong Wang
- School of Mechatronical EngineeringBeijing Institute of Technology Beijing China
| | - Peifeng Li
- James Watt School of EngineeringUniversity of Glasgow Glasgow United Kingdom
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133
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Gao J, Shao K, Chen X, Li Z, Liu Z, Yu Z, Aung LHH, Wang Y, Li P. The involvement of post-translational modifications in cardiovascular pathologies: Focus on SUMOylation, neddylation, succinylation, and prenylation. J Mol Cell Cardiol 2020; 138:49-58. [DOI: 10.1016/j.yjmcc.2019.11.146] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/01/2019] [Accepted: 11/13/2019] [Indexed: 12/12/2022]
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134
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Wang M, Gu B, Yao G, Li P, Wang K. Circular RNA Expression Profiles and the Pro-tumorigenic Function of CircRNA_10156 in Hepatitis B Virus-Related Liver Cancer. Int J Med Sci 2020; 17:1351-1365. [PMID: 32624692 PMCID: PMC7330659 DOI: 10.7150/ijms.45637] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/19/2020] [Indexed: 12/18/2022] Open
Abstract
Liver cancer is one of the most common malignant tumors in the world. Circular RNAs (circRNAs) perform important functions in cancer progression and are regarded as prospective biomarkers for cancer diagnosis and therapy. Here, we used the high-throughput RNA sequencing technology in conjunction with bioinformatics tools to profile circRNA expression in patients with HBV-related liver cancer. A total of 13,124 circRNAs were identified in HBV-related liver cancer, approximately 86.25% of which were sense-overlapping circRNAs. Moreover, 2,996 circRNAs exhibited different expression patterns between liver cancer tissues and matched pericancerous tissues. Function annotation indicated that these aberrantly expressed circRNAs were primarily engaged in cellular processes and cancer-associated pathways. Notably, the circRNA-miRNA interaction networks showed that 6,020 circRNAs were predicted to target 1,654 miRNAs. Quantitative RT-PCR (qRT-PCR) assay indicated that ten randomly selected circRNAs displayed consistent expression patterns with the sequencing results. We further predicted that circRNA_10156 might work as a molecular sponge of miR-149-3p, which served an important function in tumor development. Consequently, our results demonstrated that depletion of circRNA_10156 upregulated miR-149-3p, reduced Akt1 expression, and suppressed liver cancer cell proliferation. The present study will facilitate the elucidation of biological functions of circRNAs in the progression of HBV-related liver cancer providing prospective biomarkers and therapeutic targets for this disease. Our findings also reveal that circRNA_10156 might represent a promising therapeutic target for liver cancer management.
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Affiliation(s)
- Man Wang
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China
| | - Bianli Gu
- Henan Key Laboratory of Cancer Epigenetics, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Guoliang Yao
- Department of General Surgery, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang 471003, China
| | - Peifeng Li
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China
| | - Kun Wang
- Institute for Translational Medicine, Qingdao University, Qingdao 266021, China
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135
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Yu F, Abdelwahid E, Xu T, Hu L, Wang M, Li Y, Mogharbel BF, de Carvalho KAT, Guarita-Souza LC, An Y, Li P. The role of mitochondrial fusion and fission in the process of cardiac oxidative stress. Histol Histopathol 2019; 35:541-552. [PMID: 31820815 DOI: 10.14670/hh-18-191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mitochondria are the energy suppliers in the cell and undergo constant fusion and fission to meet metabolic demand during the cell life cycle. Well-balanced mitochondrial dynamics are extremely important and necessary for cell survival as well as for tissue homeostasis. Cardiomyocytes contain large numbers of mitochondria to satisfy the high energy demand. It has been established that deregulated processes of mitochondrial dynamics play a major role in myocardial cell death. Currently, cardiac mitochondrial cell death pathways attract great attention in the cell biology and regenerative medicine fields. Importantly, mitochondrial dynamics are tightly linked to oxidative stress-induced cardiac damage. This review summarizes molecular mechanisms of mitochondrial fusion and fission processes and their potential roles in myocardial cell death triggered by oxidative stress. Advances in understanding the effect of both normal and abnormal mitochondrial dynamics on heart protection will lead to significant improvement of therapeutic discoveries.
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Affiliation(s)
- Fei Yu
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China
| | - Eltyeb Abdelwahid
- Feinberg School of Medicine, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL, USA.
| | - Tao Xu
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China
| | - Longgang Hu
- Department of Cardiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Man Wang
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China
| | - Yuzhen Li
- Department of Pathophysiology, Institute of Basic Medical Science, PLA General Hospital, Beijing, China
| | - Bassam Felipe Mogharbel
- Cell Therapy and Biotechnology in Regenerative Medicine Research Group, Pequeno Príncipe Faculty, Pelé Pequeno Príncipe Institute, Curitiba, Brazil
| | | | - Luiz Cesar Guarita-Souza
- Experimental Laboratory of Institute of Biological and Health Sciences of Pontifical Catholic University of Parana, Curitiba, Brazil
| | - Yi An
- Department of cardiology, Affiliated hospital of Qingdao University, Qingdao, China.
| | - Peifeng Li
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China.
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136
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Yu Z, Li Q, An Y, Chen X, Liu Z, Li Z, Gao J, Aung LHH, Li P. Role of apoptosis repressor with caspase recruitment domain (ARC) in cancer. Oncol Lett 2019; 18:5691-5698. [PMID: 31788041 PMCID: PMC6865693 DOI: 10.3892/ol.2019.10981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/11/2019] [Indexed: 11/06/2022] Open
Abstract
Apoptosis repressor with caspase recruitment domain (ARC) is a potent inhibitor of apoptosis. Under physiological conditions, ARC is abundantly expressed in terminally differentiated cells, including cardiomyocytes, skeletal muscles and neurons. ARC serves a key role in determining cell fate, and abnormal ARC expression has been demonstrated to be associated with abnormal cell growth. Previous studies have revealed that ARC was upregulated in several different types of solid tumor, where it suppressed tumor cell apoptosis. Furthermore, the increased expression levels of ARC in cancer cells contributed to the development of therapeutic resistance and adverse clinical outcomes in patients with leukemia. However, the exact role of ARC, as well as the underlying molecular mechanisms involved, remain poorly understood. The present review summarizes the characteristics of ARC and its cytoprotective role under different conditions and describes the potential ARC as a new target for cancer therapy.
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Affiliation(s)
- Zhongjie Yu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China.,School of Basic Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Qi Li
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xiatian Chen
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Ziqian Liu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zhe Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Lynn Htet Htet Aung
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Peifeng Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
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137
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Abstract
Apoptosis repressor with caspase recruitment domain (ARC) is a potent inhibitor of apoptosis. Under physiological conditions, ARC is abundantly expressed in terminally differentiated cells, including cardiomyocytes, skeletal muscles and neurons. ARC serves a key role in determining cell fate, and abnormal ARC expression has been demonstrated to be associated with abnormal cell growth. Previous studies have revealed that ARC was upregulated in several different types of solid tumor, where it suppressed tumor cell apoptosis. Furthermore, the increased expression levels of ARC in cancer cells contributed to the development of therapeutic resistance and adverse clinical outcomes in patients with leukemia. However, the exact role of ARC, as well as the underlying molecular mechanisms involved, remain poorly understood. The present review summarizes the characteristics of ARC and its cytoprotective role under different conditions and describes the potential ARC as a new target for cancer therapy.
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Affiliation(s)
- Zhongjie Yu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
- School of Basic Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Qi Li
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xiatian Chen
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Ziqian Liu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zhe Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Lynn Htet Htet Aung
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Peifeng Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
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138
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Li P, Cao K, Jiang C, Xu S, Gao L, Xiao X, Lu Y. In situ tensile fracturing of multilayer graphene nanosheets for their in-plane mechanical properties. Nanotechnology 2019; 30:475708. [PMID: 31507271 DOI: 10.1088/1361-6528/ab3cd3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The excellent mechanical properties of single- and few-layer graphene have been well-quantified and evidenced by computational methods and local indentation measurements. However, there are less experimental reports on the in-plane mechanical properties of multilayer graphene sheets, despite many practical applications in flexible electronic and energy devices (e.g. graphene flexible electronic display, battery, and storage devices) are actually based on these thicker nanosheets. Here, in-plane fracture behaviors of multilayer graphene nanosheets with thicknesses between ∼10 and 300 nm (∼10-1000 layers) are characterized and quantified by in situ scanning electron microscopy and transmission electron microscopy under tensile loading. We found that, generally, the fracture strengths of graphene nanosheets decrease as the thickness (or layers) increases; however, the fracture strain of thinner graphene sheets is less than that of thicker sheets. The fracture process of the thicker nanosheets includes the initial flattened stage, the stable elastic stage, and the rapid fracture with brittle characteristics, while the thinner nanosheets show obvious delamination between the atomic layers at fracture. This work provides critical experimental insights into the tensile fracture behavior of multilayer two-dimensional materials and a better understanding on their realistic mechanical performance for potential flexible device and composite applications.
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Affiliation(s)
- Peifeng Li
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong, People's Republic of China. College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
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139
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Zhang L, Zhang Y, Xue S, Ding H, Wang Y, Qi H, Wang Y, Zhu W, Li P. Clinical significance of circulating microRNAs as diagnostic biomarkers for coronary artery disease. J Cell Mol Med 2019; 24:1146-1150. [PMID: 31709737 PMCID: PMC6933363 DOI: 10.1111/jcmm.14802] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 10/15/2019] [Accepted: 10/21/2019] [Indexed: 11/30/2022] Open
Abstract
Coronary artery disease (CAD) is one of the biggest threats to human life. Circulating microRNAs (miRNAs) have been reported to be linked to the pathogenesis of CAD, indicating the possible role in CAD diagnosis. The present study aimed to explore the expression profile of plasma miRNAs and estimate their value in diagnosis for CAD. 67 Non‐CAD control subjects and 88 CAD patients were enrolled. We conducted careful evaluation by RT‐PCR analysis, Spearman rank correlation coefficients analysis, Receiver Operating Characteristic (ROC) curves analysis and so on. The plasma levels of six miRNAs known to be related to CAD were measured and three of them showed obvious expression change. Circulating miR‐29a‐3p, miR‐574‐3p and miR‐574‐5p were all significantly increased. ROC analysis revealed the probability of the three miRNAs as biomarkers with AUCs (areas under the ROC curve) of 0.830, 0.792 and 0.789, respectively. They were significantly correlated with each other in CAD patients, suggesting the possibility of joint diagnosis. The combined AUC was 0.915, much higher than each single miRNA. Therefore, our study revealed three promising biomarkers for early diagnosis of CAD. The combination of these miRNAs may act more effectively than individual ones for CAD diagnosis.
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Affiliation(s)
- Lei Zhang
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Yuan Zhang
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Sheng Xue
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Han Ding
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Yu Wang
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Hongzhao Qi
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Yin Wang
- Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Wenjie Zhu
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peifeng Li
- Institute for Translational Medicine, Qingdao University, Qingdao, China
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140
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Wang Y, Chang W, Wang L, Zhang Y, Zhang Y, Wang M, Wang Y, Li P. A review of sources, multimedia distribution and health risks of novel fluorinated alternatives. Ecotoxicol Environ Saf 2019; 182:109402. [PMID: 31280095 DOI: 10.1016/j.ecoenv.2019.109402] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/27/2019] [Accepted: 06/29/2019] [Indexed: 05/27/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are a class of emerging persistent organic pollutants (POPs). They are widely used in industrial and consumer applications. Due to their persistence, bioaccumulation, long-distance migration and toxicity, it is important to find new compounds that can replace PFASs. The present review investigated the sources, fates and environmental effects of alternative PFAS compounds using surveys have been conducted over the past several years. Concentrations of PFAS alternatives in various environmental media, as well as human tissues, are summarized based on the available data. The results showed that hexafluoropropylene oxide dimer (HFPO-DA), hexafluoropropylene trimer acids (HFPO-TA), and 6:2 chlorinated polyfluorinated ether sulfonic acid (6:2 Cl-PFESA) have become the dominant global perfluorinated pollutants. Currently, there are a few toxicity assessments of these novel fluorinated alternatives, showing that they have systemic multiple organ toxicities. PFAS alternatives exhibited comparable or even more serious potential toxicity than legacy PFASs, indicating that these fluorinated alternatives are also harmful to the environment. Therefore, these alternatives require additional toxicological studies to confirm whether they can be used for a long time.
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Affiliation(s)
- Yu Wang
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China.
| | - Wenguang Chang
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China
| | - Ling Wang
- Institute of Environment and Health, Jianghan University, Wu Han, 430056, China
| | - Yinfeng Zhang
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China
| | - Yuan Zhang
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China
| | - Man Wang
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China
| | - Yin Wang
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China
| | - Peifeng Li
- Institute for Translational Medicine, Qingdao University, Qing Dao, 266071, China
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Zhang Y, Cao X, Li P, Fan Y, Zhang L, Ma X, Sun R, Liu Y, Li W. LncRNA NKILA integrates RXFP1/AKT and NF-κB signalling to regulate osteogenesis of mesenchymal stem cells. J Cell Mol Med 2019; 24:521-529. [PMID: 31657882 PMCID: PMC6933397 DOI: 10.1111/jcmm.14759] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 09/25/2019] [Accepted: 10/08/2019] [Indexed: 12/16/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are previously found to have potential capacity to differentiate into osteocytes when exposed to specific stimuli. However, the detailed molecular mechanism during this progress remains largely unknown. In the current study, we characterized the lncRNA NKILA as a crucial positive regulator for osteogenesis of MSCs. NKILA attenuation significantly inhibits the calcium deposition and alkaline phosphatase activity of MSCs. More interestingly, we defined that NKILA is functionally involved in the regulation of RXFP1/PI3K‐AKT and NF‐κB signalling. Knockdown of NKILA dramatically down‐regulates the expression of RXFP1 and then reduces the activity of AKT, a downstream regulator of RXFP1 signalling which is widely accepted as an activator of osteogenesis. Moreover, we identify NF‐κB as another critical regulator implicated in NKILA‐mediated osteogenic differentiation. Inhibition of NF‐κB can induce the expression of RUNX2, a master transcription factor of osteogenesis, in a HDAC2‐mediated deacetylation manner. Thus, this study illustrates the regulatory function of NKILA in osteogenesis through distinct signalling pathways, therefore providing a new insight into searching for new molecular targets for bone tissue repair and regeneration.
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Affiliation(s)
- Ying Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Xiangyang Cao
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Peifeng Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Yanan Fan
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Leilei Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Xianghao Ma
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Ruibo Sun
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
| | - Wuyin Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, Luoyang, China
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Dong L, Li R, Li D, Wang B, Lu Y, Li P, Yu F, Jin Y, Ni X, Wu Y, Yang S, Lv G, Li X, Xiao J, Wang J. FGF10 Enhances Peripheral Nerve Regeneration via the Preactivation of the PI3K/Akt Signaling-Mediated Antioxidant Response. Front Pharmacol 2019; 10:1224. [PMID: 31680984 PMCID: PMC6805699 DOI: 10.3389/fphar.2019.01224] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/23/2019] [Indexed: 12/14/2022] Open
Abstract
The process of axonal regeneration after peripheral nerve injury (PNI) is slow and mostly incomplete. Previous studies have investigated the neuroprotective effects of fibroblast growth factor 10 (FGF10) against spinal cord injury and cerebral ischemia brain injury. However, the role of FGF10 in peripheral nerve regeneration remains unknown. In this study, we aimed to investigate the underlying therapeutic effects of FGF10 on nerve regeneration and functional recovery after PNI and to explore the associated mechanism. Our results showed that FGF10 administration promoted axonal regeneration and functional recovery after nerve damage. Moreover, exogenous FGF10 treatment also prevented SCs from excessive oxidative stress-induced apoptosis, which was probably related to the activation of phosphatidylinositol-3 kinase/protein kinase B (PI3K/Akt) signaling. The inhibition of the PI3K/Akt pathway by the specific inhibitor LY294002 partially reversed the therapeutic effects of FGF10 both in vivo and in vitro. Thus, from our perspective, FGF10 may be a promising therapeutic drug for repairing sciatic nerve damage through countering excessive oxidative stress-induced SC apoptosis.
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Affiliation(s)
- Lvpeng Dong
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Rui Li
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.,School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Duohui Li
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Beini Wang
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yingfeng Lu
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peifeng Li
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fangzheng Yu
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yonglong Jin
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao Ni
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanqing Wu
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Shengnan Yang
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Guanxi Lv
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Xiaokun Li
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Jian Wang
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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143
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Yang L, Han D, Zhan Q, Li X, Shan P, Hu Y, Ding H, Wang Y, Zhang L, Zhang Y, Xue S, Zhao J, Hou X, Wang Y, Li P, Yuan X, Qi H. Blood TfR+ exosomes separated by a pH-responsive method deliver chemotherapeutics for tumor therapy. Am J Cancer Res 2019; 9:7680-7696. [PMID: 31695794 PMCID: PMC6831460 DOI: 10.7150/thno.37220] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 09/06/2019] [Indexed: 12/28/2022] Open
Abstract
Blood transferrin receptor-positive (TfR+) exosomes are a kind of optimized drug delivery vector compared with other kinds of exosomes due to their easy access and high bio-safety. Their application facilitates the translation from bench to bedside of exosome-based delivery vehicles. Methods: In this study, a pH-responsive superparamagnetic nanoparticles cluster (denoted as SMNC)-based method was developed for the precise and mild separation of blood TfR+ exosomes. Briefly, multiple superparamagnetic nanoparticles (SPMNs) labeled with transferrins (Tfs) could precisely bind to blood TfR+ exosomes to form an exosome-based cluster due to the specific recognition of TfR by Tf. They could realize the precise magnetic separation of blood TfR+ exosomes. More importantly, the pH-responsive dissociation characteristic of Tf and TfR led to the mild collapse of clusters to obtain pure blood TfR+ exosomes. Results: Blood TfR+ exosomes with high purity and in their original state were successfully obtained through the pH-responsive SMNC-based method. These can load Doxorubicin (DOX) with a loading capacity of ~10% and dramatically increase the tumor accumulation of DOX in tumor-bearing mice because of their innate passive-targeting ability. In addition, blood TfR+ exosomes changed the biodistribution of DOX leading to the reduction of side effects. Compared with free DOX, DOX-loaded blood TfR+ exosomes showed much better tumor inhibition effects on tumor-bearing mice. Conclusion: Taking advantage of the pH-responsive binding and disaggregation characteristics of Tf and TfR, the SMNC-based method can precisely separate blood TfR+ exosomes with high purity and in their original state. The resulting blood TfR+ exosomes showed excellent bio-safety and enable the efficient delivery of chemotherapeutics to tumors, facilitating the clinical translation of exosome-based drug delivery systems.
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144
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Wei J, Wang Y, Li P, Fan L, Li M, Wang Z. Small-cell carcinoma-associated ovarian mucinous carcinoma: A case report and literature review. Pathol Res Pract 2019; 215:152619. [PMID: 31585810 DOI: 10.1016/j.prp.2019.152619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 11/24/2022]
Abstract
Neuroendocrine neoplasm-associated ovarian mucinous carcinoma occurs extremely rarely. Here, we report an ovarian composite tumor consisting of small-cell carcinoma and mucinous carcinoma in a 51-year-old woman presented with abdominal distention. Ultrasonography revealed the presence of a complex irregular cystic solid mass. Microscopic findings showed pulmonary-type small-cell carcinoma-associated, intestinal-type ovarian mucinous carcinoma-with positive results for several neuroendocrine markers (chromogranin, CD56) and the thyroid transcription factor-1. The patient underwent total hysterectomy, bilateral salpingo-oophorectomy, omentectomy, and six cycles of adjuvant chemotherapy but died eight months after the surgery due to disease progression. Few reports are available in China on this clinicopathological feature in this composite tumor type. The timely identification of ovarian small-cell carcinoma among other ovarian tumors is critically important to the accurate and prompt determination of the therapy due to its high invasiveness and metastatic potential.
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Affiliation(s)
- Jie Wei
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, the Air Force Military Medical University. No.169 Changlexi Road, Xincheng District, Xi'an 710032, PR China.
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, the Air Force Military Medical University. No.169 Changlexi Road, Xincheng District, Xi'an 710032, PR China.
| | - Peifeng Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, the Air Force Military Medical University. No.169 Changlexi Road, Xincheng District, Xi'an 710032, PR China.
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, the Air Force Military Medical University. No.169 Changlexi Road, Xincheng District, Xi'an 710032, PR China.
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, the Air Force Military Medical University. No.169 Changlexi Road, Xincheng District, Xi'an 710032, PR China.
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, the Air Force Military Medical University. No.169 Changlexi Road, Xincheng District, Xi'an 710032, PR China.
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145
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Ding H, An Y, Zhao T, Liu B, Wang Y, Zhang L, Wang Y, Zhang Y, Wang M, Dong Y, Hu L, Zhao BC, Li P. Large-scale rapid detection of circulating microRNAs in plasma for diagnosis and screening of specific diseases. Nanoscale 2019; 11:16879-16885. [PMID: 31482918 DOI: 10.1039/c9nr04407h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
microRNAs are a type of evolutionarily conserved small non-coding RNA with a length of 18-25 nucleotides. In recent years, increasing studies have shown that the content of specific miRNAs in the blood changes significantly during the occurrence and development of major diseases such as cardiovascular disease and cancer. Therefore, miRNAs may serve as important new biomarkers that can be used for disease diagnosis in the future. Here, we improved the polyethylene glycol layer on the surface of a traditional silicon sphere to specifically capture miRNAs by means of a full-function microplate detector, at 100 microliters. The detection limit for specific miRNAs per liter of plasma can reach 1 fM, and simultaneous detection of 96 samples can be achieved. Compared with the traditional real-time PCR technology, our detection eliminates the complex steps of miRNA extraction, reverse transcription, amplification, etc. and avoids more human error in the detection process. Using the full-featured microwell detector, we can rapidly detect specific miRNAs in plasma, which can be used in the diagnosis of cardiovascular diseases in the future.
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Affiliation(s)
- Han Ding
- Institute for Translational Medicine, Medical College, Qingdao University, Qing Dao, 266071, China.
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Li M, Su X, Wang Y, Fan L, Chai J, Li P, Zhao D, Liu Y, Ma J, Wang K, Yan Q, Guo S, Jin B, Liang R, Wang Z. Lineage-negative lymphoma with a helper innate lymphoid cell phenotype. Virchows Arch 2019; 476:285-293. [PMID: 31522287 DOI: 10.1007/s00428-019-02658-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/19/2019] [Accepted: 08/23/2019] [Indexed: 01/07/2023]
Abstract
Helper innate lymphoid cells (ILCs) were recently recognized as lineage-negative lymphoid cells that do not express rearranged receptors and have important effector and regulatory functions in innate immunity. However, to our knowledge, no cases of hematological malignancies arising from helper ILCs have ever been reported in the literature. Here, we report a case of a 17-year-old man with multiple lymphadenopathy who was diagnosed with lineage-negative lymphoma that displayed a helper ILC phenotype. Histological examination showed large monomorphic atypical lymphoid cells with prominent nucleoli and abundant eosinophilic cytoplasms with scattered and patchy distributions. Large amounts of histiocytes and infiltrating lymphocytes were observed in the background. Immunostaining revealed positive LCA and CD79a expression but negative expression of all lineage markers. IG and TCR rearrangement analysis showed no clonal rearrangements. Tumor cells strongly expressed helper ILC phenotypic markers, such as CD127, IL-1R, GATA3, ST2, IL-17Rβ, and RANKL, and helper ILC-produced cytokines, such as IL-4 and GM-CSF. PD-L1/PD-L2-positive histiocytes and FOXP3-positive Tregs were observed in the tumor microenvironment. Flow cytometry of bone marrow at recurrence was positive for IL-1R and negative for T, B, NK, and myelogenous lineage markers. TP53 sequencing showed that exon 5 was replaced with an intergenic sequence of chromosome 21. Next-generation sequencing demonstrated a novel IGLV2-14/IGLL5 fusion and mutations or deletions of tumor suppressor genes, such as PTPRB, PPP2CB, and UPK1A. This tumor was very aggressive, resistant to chemotherapy, recurred with bone marrow involvement, and caused the death of the patient within 6 months. To our knowledge, this is the first report of a hematological malignancy potentially arising from helper ILCs. We propose negativity for lineage markers and positivity for CD127/IL-1R in combination with specific transcription factor expression as markers of this tumor. This finding represents a novel addition to the growing spectrum of hematological malignancies.
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Affiliation(s)
- Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Xiaoli Su
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jia Chai
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Peifeng Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Danhui Zhao
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jing Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Kaijing Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Qingguo Yan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Boquan Jin
- Department of Immunology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Rong Liang
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China.
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147
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Wang M, Gu B, Chen X, Wang Y, Li P, Wang K. The Function and Therapeutic Potential of Epstein-Barr Virus-Encoded MicroRNAs in Cancer. Mol Ther Nucleic Acids 2019; 17:657-668. [PMID: 31400608 PMCID: PMC6698931 DOI: 10.1016/j.omtn.2019.07.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 05/14/2019] [Accepted: 07/06/2019] [Indexed: 02/06/2023]
Abstract
Epstein-Barr virus (EBV) is a ubiquitous human γ-herpesvirus that infects over 90% of the global population. EBV is considered a contributory factor in a variety of malignancies including nasopharyngeal carcinoma, gastric carcinoma, Burkitt lymphoma, and Hodgkin’s lymphoma. Notably, EBV was the first virus found to encode microRNAs (miRNAs). Increasing evidence indicates that EBV-encoded miRNAs contribute to the carcinogenesis and development of EBV-associated malignancies. EBV miRNAs have been shown to inhibit the expression of genes involved in cell proliferation, apoptosis, invasion, and immune signaling pathways. Therefore, EBV miRNAs perform a significant function in the complex host-virus interaction and EBV-driven carcinogenesis. However, the integrated mechanisms underlying the roles of EBV miRNAs in carcinogenesis remain to be further explored. In this review, we describe recent advances regarding the involvement of EBV miRNAs in the pathogenesis of EBV-associated malignancies and discuss their potential utility as cancer biomarkers. An in-depth investigation into the pro-carcinogenic role of EBV miRNAs will expand our knowledge of the biological processes associated with virus-driven tumors and contribute to the development of novel therapeutic strategies for the treatment of EBV-associated malignancies.
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Affiliation(s)
- Man Wang
- Institute for Translational Medicine, Medical College of Qingdao University, Dengzhou Road 38, Qingdao 266021, China.
| | - Bianli Gu
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Xinzhe Chen
- Institute for Translational Medicine, Medical College of Qingdao University, Dengzhou Road 38, Qingdao 266021, China
| | - Yefu Wang
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Peifeng Li
- Institute for Translational Medicine, Medical College of Qingdao University, Dengzhou Road 38, Qingdao 266021, China
| | - Kun Wang
- Institute for Translational Medicine, Medical College of Qingdao University, Dengzhou Road 38, Qingdao 266021, China.
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148
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Zhang Y, Shen S, Li P, Fan Y, Zhang L, Li W, Liu Y. PLEXIN-B2 promotes the osteogenic differentiation of human bone marrow mesenchymal stem cells via activation of the RhoA signaling pathway. Cell Signal 2019; 62:109343. [PMID: 31176746 DOI: 10.1016/j.cellsig.2019.06.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/30/2019] [Accepted: 06/05/2019] [Indexed: 01/07/2023]
Abstract
Plexin-B2 (PLXNB2), a transmembrane protein is found in various tissues. Recent studies have indicated the presence of PLXNB2 in large quantity in the growth plates of Sprague-Dawley rats and are believed to be potentially involved in their skeletal development. This study endeavored to analyze the effect of PLXNB2 on the osteogenic differentiation of BMSCs by using gene overexpression and knockdown assays. The results of our study revealed that PLXNB2 was upregulated during BMSCs differentiation into an osteoblastic lineage. By determining the expression levels of specific markers and mineral deposition, the study established that PLXNB2 promotes the osteogenic differentiation of human BMSCs through the activation of the RhoA signaling pathway. In conclusion, the study identified PLXNB2 as a novel regulator that enhanced the osteogenic differentiation of human BMSCs. The enhancing effect of PLXNB2 on osteogenesis of human BMSCs was mediated through activation of RhoA signaling. The results of our study imply that pharmacological targeting of PLXNB2 may initiate a possible improvement in bone formation.
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Affiliation(s)
- Ying Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China
| | - Sheng Shen
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China
| | - Peifeng Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China
| | - Yanan Fan
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China
| | - Leilei Zhang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China
| | - Wuyin Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China.
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Orthopedics Hospital of Henan Province, 82 Qiming South Road, Luoyang, Henan 471002, China.
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149
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Xu T, Jia Q, Wang Y, Liu Y, Han D, Li P, Ma J, Fan L, Yan Q, Guo S, Li M, Wang Z. Rare cases of primary central nervous system anaplastic variant of diffuse large B-cell lymphoma. Diagn Pathol 2019; 14:45. [PMID: 31109360 PMCID: PMC6528307 DOI: 10.1186/s13000-019-0826-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/13/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Primary central nervous system (CNS) diffuse large B-cell lymphoma (DLBCL) is a rare intracranial tumor, defined as DLBCL arising from the brain, spinal cord, leptomeninges and eye, with an overall annual incidence of 5 cases per million. The primary CNS anaplastic variant of DLBCL (A-DLBCL) is even less common; to our knowledge, there are only two other case reports in the literature. The aim of this report is to present rare cases of primary CNS A-DLBCL and study their clinicopathologic and genetic features. CASE PRESENTATION We report 3 patients, two men and one woman, aged 54, 55 and 67 years old, with primary CNS A-DLBCL. All 3 patients had a high International Extranodal Lymphoma Study Group (IELSG) score; although the patients were treated with methotrexate-based regimens and/or with radiation therapy, the overall survival was only 2, 5, and 8 months. All 3 patients presented with characteristic features of perivascular space infiltration with bizarre-shaped tumor cells, leading to the diagnosis of primary CNS A-DLBCL. Concurrent of MYC and BCL2 and/or BCL6 abnormalities and MYC/BCL2 double-expressor DLBCL occurred in all 3 patients; two patients had MYC/BCL2/BCL6 triple extra copies, and one patient had MYC extra copy and BCL6 translocation. All 3 patients displayed mutations in MYD88 L265P and nuclear positivity for RELA, RELB and/or c-Rel, indicating constitutive activation of the NF-κB pathway. CONCLUSIONS These cases shed light on the unique genetic alterations and biological features of primary CNS A-DLBCL. Patients with primary CNS A-DLBCL may often have a MYC/BCL2 double-expressor and concurrent MYC and BCL2 and/or BCL6 genetic abnormalities, as well as constitutive activation of the NF-κB pathway. Primary CNS A-DLBCL follows a very aggressive disease course and poor prognosis. In the future, a large number of cases should be analyzed, and the evaluation of molecular genetic characteristics could help with practical and therapeutic implications for primary CNS A-DLBCL.
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Affiliation(s)
- Tianqi Xu
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Qingge Jia
- Second Retired Cadres Sanitarium of Xi'an, Shaanxi Province Military Region, Xi'an, 710032, China
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Donghui Han
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Peifeng Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jing Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Qingguo Yan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China.
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China.
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Xue S, Zhu W, Liu D, Su Z, Zhang L, Chang Q, Li P. Circulating miR-26a-1, miR-146a and miR-199a-1 are potential candidate biomarkers for acute myocardial infarction. Mol Med 2019; 25:18. [PMID: 31092195 PMCID: PMC6521554 DOI: 10.1186/s10020-019-0086-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 04/22/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Acute myocardial infarction (AMI) was considered to be one of the major causes of morbidity and mortality worldwide. In order to manage the acute myocardial infarction outbreaks, accurate biomarkers for risk prediction are needed. Circulating microRNAs (miRNAs) may act as diagnostic and prognostic biomarkers for cardiovascular events. METHODS This study aimed to determine the possibility of circulating miRNAs used as biomarkers for AMI and their dynamic expression levels before and after percutaneous coronary intervention (PCI) in patients. Circulating miR-26a-1, miR-27a, miR-30d, miR-146a, miR-199a-1 and miR-423 were selected and validated in 31 AMI patients and 27 matched controls by quantitative real-time PCR (qPCR). RESULTS The expression levels of plasma miR-26a-1, miR-146a and miR-199a-1 were significantly increased in AMI patients. Receiver operating characteristic (ROC) analysis indicated that miR-26a-1, miR-146a and miR-199a-1 showed considerable diagnostic efficiency for predicting AMI. Furthermore, we demonstrated that the combination of miR-26a-1, miR-146a and miR-199a-1 facilitated AMI diagnosis. CONCLUSIONS Our findings suggest that circulating miR-26a-1, miR-146a and miR-199a-1 have the potential to be used as biomarkers for AMI diagnosis.
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Affiliation(s)
- Sheng Xue
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021 China
| | - Wenjie Zhu
- Affiliated Hospital of Qingdao University. Qingdao University, Qingdao, 266003 China
| | - Dacheng Liu
- Affiliated Hospital of Qingdao University. Qingdao University, Qingdao, 266003 China
| | - Zhe Su
- Affiliated Hospital of Qingdao University. Qingdao University, Qingdao, 266003 China
| | - Liwei Zhang
- Affiliated Hospital of Qingdao University. Qingdao University, Qingdao, 266003 China
| | - Qing Chang
- Affiliated Hospital of Qingdao University. Qingdao University, Qingdao, 266003 China
| | - Peifeng Li
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021 China
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