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Zhang Y, Cao S, Zeng F, Pan D, Cai L, Zhou Y, Wang H, Qin G, Zhang C, Chen W. Dihydroartemisinin enhances the radiosensitivity of breast cancer by targeting ferroptosis signaling pathway through hsa_circ_0001610. Eur J Pharmacol 2024; 983:176943. [PMID: 39182549 DOI: 10.1016/j.ejphar.2024.176943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 08/27/2024]
Abstract
OBJECTIVE This study aimed to elucidate how DHA enhances the radiosensitivity of BC and to explain its potential mechanisms of action. METHODS The circular structure of hsa_circ_0001610 was confirmed by Sanger sequencing, RNase R treatment, RT-PCR analysis using gDNA or cDNA. Cellular localization of hsa_circ_0001610 and microRNA-139-5p (miR-139-5p) was detected by fluorescence in situ hybridization. Cell counting kit-8 assay, wound healing and colony formation tests for assessing cell proliferation, while flow cytometry was utilized to estimate cell cycle progression and apoptosis. Reactive oxygen species and malondialdehyde experiments were conducted to validate ferroptosis of BC cells. The expression of ncRNAs and mRNAs was quantified via qRT-PCR, and protein expression was analyzed using Western blot. The effects of hsa_circ_0001610 and DHA on radiosensitivity of BC in vivo were studied by establishing BC mice model. RESULTS In vivo and in vitro experimental results indicate that DHA promotes ferroptosis of BC cells at least partly by inhibiting hsa_circ_0001610/miR-139-5p/SLC7A11 pathway, thereby enhancing the radiosensitivity of BC cells. CONCLUSIONS Our findings showed that DHA can induce ferroptosis of BC cells by down-regulation of hsa_circ_0001610, thus enhancing radiosensitivity, suggesting a promising therapeutic strategy for enhancing BC radiosensitivity that is worthy of further exploration.
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Affiliation(s)
- YiWen Zhang
- Department of Radiology, NanFang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - ShuYi Cao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southern Medical University and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou, 510000, China
| | - FengXia Zeng
- Department of Radiology, NanFang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - DeRun Pan
- Department of Radiology, NanFang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - LongMei Cai
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - YingYing Zhou
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - HongMei Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - GengGeng Qin
- Department of Radiology, NanFang Hospital, Southern Medical University, Guangzhou, 510000, China.
| | - Chao Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southern Medical University and Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Guangzhou, 510000, China.
| | - WeiGuo Chen
- Department of Radiology, NanFang Hospital, Southern Medical University, Guangzhou, 510000, China.
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Ning Y, Huang P, Chen G, Xiong Y, Gong Z, Wu C, Xu J, Jiang W, Li X, Tang R, Zhang L, Hu M, Xu J, Xu J, Qian H, Jin C, Yang Y. Atorvastatin-pretreated mesenchymal stem cell-derived extracellular vesicles promote cardiac repair after myocardial infarction via shifting macrophage polarization by targeting microRNA-139-3p/Stat1 pathway. BMC Med 2023; 21:96. [PMID: 36927608 PMCID: PMC10022054 DOI: 10.1186/s12916-023-02778-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 02/10/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Extracellular vesicles (EVs) derived from bone marrow mesenchymal stem cells (MSCs) pretreated with atorvastatin (ATV) (MSCATV-EV) have a superior cardiac repair effect on acute myocardial infarction (AMI). The mechanisms, however, have not been fully elucidated. This study aims to explore whether inflammation alleviation of infarct region via macrophage polarization plays a key role in the efficacy of MSCATV-EV. METHODS MSCATV-EV or MSC-EV were intramyocardially injected 30 min after coronary ligation in AMI rats. Macrophage infiltration and polarization (day 3), cardiac function (days 0, 3, 7, 28), and infarct size (day 28) were measured. EV small RNA sequencing and bioinformatics analysis were conducted for differentially expressed miRNAs between MSCATV-EV and MSC-EV. Macrophages were isolated from rat bone marrow for molecular mechanism analysis. miRNA mimics or inhibitors were transfected into EVs or macrophages to analyze its effects on macrophage polarization and cardiac repair in vitro and in vivo. RESULTS MSCATV-EV significantly reduced the amount of CD68+ total macrophages and increased CD206+ M2 macrophages of infarct zone on day 3 after AMI compared with MSC-EV group (P < 0.01-0.0001). On day 28, MSCATV-EV much more significantly improved the cardiac function than MSC-EV with the infarct size markedly reduced (P < 0.05-0.0001). In vitro, MSCATV-EV also significantly reduced the protein and mRNA expressions of M1 markers but increased those of M2 markers in lipopolysaccharide-treated macrophages (P < 0.05-0.0001). EV miR-139-3p was identified as a potential cardiac repair factor mediating macrophage polarization. Knockdown of miR-139-3p in MSCATV-EV significantly attenuated while overexpression of it in MSC-EV enhanced the effect on promoting M2 polarization by suppressing downstream signal transducer and activator of transcription 1 (Stat1). Furthermore, MSCATV-EV loaded with miR-139-3p inhibitors decreased while MSC-EV loaded with miR-139-3p mimics increased the expressions of M2 markers and cardioprotective efficacy. CONCLUSIONS We uncovered a novel mechanism that MSCATV-EV remarkably facilitate cardiac repair in AMI by promoting macrophage polarization via miR-139-3p/Stat1 pathway, which has the great potential for clinical translation.
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Affiliation(s)
- Yu Ning
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
- National Health Commission Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Peisen Huang
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
- National Health Commission Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Guihao Chen
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Yuyan Xiong
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Zhaoting Gong
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Chunxiao Wu
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Junyan Xu
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Wenyang Jiang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Xiaosong Li
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Ruijie Tang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Lili Zhang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Mengjin Hu
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Jing Xu
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Jun Xu
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Haiyan Qian
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Chen Jin
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Yuejin Yang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China.
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Abstract
The tumor microenvironment (TME) is a well-recognized system that plays an essential role in tumor initiation, development, and progression. Intense intercellular communication between tumor cells and other cells (especially macrophages) occurs in the TME and is mediated by cell-to-cell contact and/or soluble messengers. Emerging evidence indicates that noncoding RNAs (ncRNAs) are critical regulators of the relationship between cells within the TME. In this review, we provide an update on the regulation of ncRNAs (primarily micro RNAs [miRNAs], long ncRNAs [lncRNAs], and circular RNAs [circRNAs]) in the crosstalk between macrophages and tumor cells in hepatocellular carcinoma (HCC). These ncRNAs are derived from macrophages or tumor cells and act as oncogenes or tumor suppressors, contributing to tumor progression not only by regulating the physiological and pathological processes of tumor cells but also by controlling macrophage infiltration, activation, polarization, and function. Herein, we also explore the options available for clinical therapeutic strategies targeting crosstalk-related ncRNAs to treat HCC. A better understanding of the relationship between macrophages and tumor cells mediated by ncRNAs will uncover new diagnostic biomarkers and pharmacological targets in cancer.
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Liu Y, Wang L, Liu W. Roles of circRNAs in the Tumorigenesis and Metastasis of HCC: A Mini Review. Cancer Manag Res 2022; 14:1847-1856. [PMID: 35668744 PMCID: PMC9166687 DOI: 10.2147/cmar.s362594] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/20/2022] [Indexed: 12/21/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of non-coding RNAs with loop structures that are stable and widely distributed in different tumor tissues. The development of high-throughput sequencing and in silico tools has enabled the discovery of numerous functional circRNAs. Hepatocellular carcinoma (HCC) is a malignant tumor, and the mechanism involved in its progression has remained unclear. In recent years, an increasing number of circRNAs have been identified in HCC, contributing to tumorigenesis and metastasis and with the potential role as biomarkers through competitive endogenous RNAs (ceRNAs) as miRNA sponges or by interacting with RNA binding proteins (RBPs). In this review, we summarize the regulatory roles of circRNAs in HCC development as well as the use of bioinformatics tools in the annotation and prioritization of circRNA and highlight the participation of exosomal circRNAs in HCC metastasis and drug resistance.
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Affiliation(s)
- Yichen Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Lei Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
| | - Wen Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, People's Republic of China
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Zhao X, Cui D, Yan F, Yang L, Huang B. Circ_0007919 exerts an anti-tumor role in colorectal cancer through targeting miR-942-5p/TET1 axis. Pathol Res Pract 2021; 229:153704. [PMID: 34906917 DOI: 10.1016/j.prp.2021.153704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 10/19/2021] [Accepted: 11/20/2021] [Indexed: 02/07/2023]
Abstract
Circular RNAs (circRNAs) are key regulators in the development of many cancers. The present study was aimed to investigate the mechanism by which circ_0007919 affected colorectal cancer (CRC) progression.The differentially expressed circRNA was screened out by analyzing the expression profile of circRNAs of CRC tissues. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed for detecting the expressions of circ_0007919, miR-942-5p, and ten-eleven translocation 1 (TET1) mRNA in CRC tissues and cell lines. Cell growth and migration were assessed by cell counting kit-8 (CCK-8) 5-bromo-2'-deoxyuridine (BrdU) and scratch assays. Bioinformatics analysis and dual-luciferase reporter assay were conducted to predict and validate the targeted relationships between circ_0007919 and miR-942-5p, as well as between miR-942-5p and TET1 mRNA. Besides, Western blot was conducted for detecting TET1 protein expression in CRC cells. It was revealed that, in CRC tissues and cell lines, circ_0007919 and TET1 expressions were reduced whereas miR-942-5p expression was enhanced. It was also revealed that circ_0007919 overexpression markedly suppressed CRC cell growth and migration. In addition, circ_0007919 could competitively bind with miR-942-5p to increase the expression of miR-942-5p's target gene TET1. Collectively, circ_0007919 inhibits CRC cell growth and migration via regulating the miR-942-5p/TET1 axis. This study helps to better understand the molecular mechanism of CRC progression.
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Affiliation(s)
- Xun Zhao
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Medical College of Guizhou University, Guiyang 550002, Guizhou, China
| | - Dejun Cui
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Medical College of Guizhou University, Guiyang 550002, Guizhou, China
| | - Fang Yan
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Medical College of Guizhou University, Guiyang 550002, Guizhou, China
| | - Liuchan Yang
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Medical College of Guizhou University, Guiyang 550002, Guizhou, China
| | - Bo Huang
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Medical College of Guizhou University, Guiyang 550002, Guizhou, China.
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Zhao J, Wang Y, Su H, Su L. Non-coding RNAs as biomarkers for hepatocellular carcinoma-A systematic review. Clin Res Hepatol Gastroenterol 2021; 45:101736. [PMID: 34146723 DOI: 10.1016/j.clinre.2021.101736] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/09/2021] [Accepted: 05/21/2021] [Indexed: 02/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is the sixth most common malignancy in the world and the fourth leading cause of cancer-related death, and its incidence is increasing globally. Despite significant advances in treatment strategies for HCC, the prognosis is still poor due to its high recurrence rate. Therefore, there is an urgent need to understand the pathogenesis of HCC and further develop new therapies to improve the prognosis and quality of life of HCC patients. MicroRNAs (miRNAs, miRs) are small non-coding RNAs involved in post-transcriptional regulation of gene expression that is abnormally expressed in cancer-associated genomic regions or vulnerable sites. More and more findings have shown that miRNAs are important regulatory factors of mRNA expression in HCC, and they are receiving more and more attention as a possible key biomarker of HCC. This review mainly summarizes the potential applied value on miRNAs as diagnostic, drug resistant, prognostic, and therapeutic biomarkers in the diagnosis, therapy, and prognosis of HCC. Also, we summarize the research value of long non-coding RNA (lncRNAs), circular RNAs (circRNAs), and miRNAs network in HCC as novel biomarkers, aiming at providing some references for the therapy of HCC.
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Affiliation(s)
- Jinying Zhao
- The Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine (Approved by State Administration of Traditional Chinese Medicine), China Three Gorges University, Yichang, China
| | - Yanhua Wang
- Department of Morphology, Medical College of China Three Gorges University, Yichang, China.
| | - Huahua Su
- The Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine (Approved by State Administration of Traditional Chinese Medicine), China Three Gorges University, Yichang, China
| | - Lijia Su
- The Third-Grade Pharmacological Laboratory on Traditional Chinese Medicine (Approved by State Administration of Traditional Chinese Medicine), China Three Gorges University, Yichang, China
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Mao G, Zhou B, Xu W, Jiao N, Wu Z, Li J, Liu Y. Hsa_circ_0040809 regulates colorectal cancer development by upregulating methyltransferase DNMT1 via targeting miR-515-5p. J Gene Med 2021; 23:e3388. [PMID: 34438465 DOI: 10.1002/jgm.3388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/29/2021] [Accepted: 08/22/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are key regulators in the progression of various cancers. Abnormal DNA methylation patterns feature prominently in the regulation of the expression of tumor-related genes. This study is aimed at investigating the molecular mechanism of circ_0040809 affecting colorectal cancer (CRC) progression by regulating DNA methyltransferase 1 (DNMT1). METHODS circ_0040809 was selected from the circRNA microarray datasets (GSE142837 and GSE138589). Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to examine the expression of circ_0040809, miR-515-5p, and DNMT1 mRNA in paired cancerous and paracancerous tissues of 40 CRC patients, as well as in cell lines. Western blotting was conducted for detecting DNMT1 protein expression in CRC cells. Cell proliferation, migration, and apoptosis were assessed through CCK-8, Transwell, and flow cytometry assays. Bioinformatics and dual-luciferase gene assay were conducted to predict and verify, respectively, the targeted relationships between circ_0040809 and miR-515-5p, as well as between miR-515-5p and DNMT1 mRNA. RESULTS In CRC tissues and cells, circ_0040809 and DNMT1 expression are markedly increased, whereas miR-515-5p expression is decreased. Also, high circ_0040809 expression is significantly linked to shorter overall survival. Cell function compensation experiments reveal that circ_0040809 silencing inhibits CRC cell proliferation and migration and promotes apoptosis, while circ_0040809 overexpression has the opposite effects. Mechanistically, circ_0040809 competitively binds to miR-515-5p to elevate DNMT1 expression. Rescue assay reveals that overexpressed miR-515-5p partly counteracts the tumor-facilitating impact of circ_0040809. CONCLUSIONS circ_0040809 facilitates CRC cell proliferation and migration, and inhibits apoptosis, through modulating miR-515-5p/DNMT1 axis. Our study implies that targeting circ_0040809 may be a therapy strategy for CRC treatment.
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Affiliation(s)
- Guoliang Mao
- Department of Pathology, First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, China
| | - Bing Zhou
- Department of Pathology, First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, China
| | - Wuqin Xu
- Department of Pathology, First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, China
| | - Nanlin Jiao
- Department of Pathology, First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, China
| | - Zhihao Wu
- Research Laboratory of Tumor Microenvironment, Wannan Medical College, Wuhu, Anhui, China
| | - Jiajia Li
- Department of Pathology, First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, China
| | - Yinhua Liu
- Department of Pathology, First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, China
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Luo Z, Chen S, Chen X. CircMAPK9 promotes the progression of fibroblast-like synoviocytes in rheumatoid arthritis via the miR-140-3p/PPM1A axis. J Orthop Surg Res 2021; 16:395. [PMID: 34154607 PMCID: PMC8215771 DOI: 10.1186/s13018-021-02550-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/10/2021] [Indexed: 12/12/2022] Open
Abstract
Background Rheumatoid arthritis (RA) is a chronic inflammatory joint disease, and fibroblast-like synoviocytes (FLSs) are key effector cells in RA development. Mounting evidence indicates that circular RNAs (circRNAs) participate in the occurrence and development of RA. However, the precise mechanism of circRNA mitogen-activated protein kinase (circMAPK9) in the cell processes of FLSs has not been reported. Methods The expression levels of circMAPK9, microRNA-140-3p (miR-140-3p), and protein phosphatase magnesium-dependent 1A (PPM1A) were determined by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot assay. Cell proliferation was examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Cell apoptosis and cycle distribution were assessed by flow cytometry. Cell migration and invasion were tested by transwell assay. All the proteins were inspected by western blot assay. Inflammatory response was evaluated by enzyme-linked immunosorbent assay (ELISA). The interaction between miR-140-3p and circMAPK9 or PPM1A was verified by dual-luciferase reporter assay. Results CircMAPK9 and PPM1A were upregulated and miR-140-3p was downregulated in RA patients and FLSs from RA patients (RA-FLSs). CircMAPK9 silence suppressed cell proliferation, migration, invasion, inflammatory response, and promoted apoptosis in RA-FLSs. MiR-140-3p was a target of circMAPK9, and miR-140-3p downregulation attenuated the effects of circMAPK9 knockdown on cell progression and inflammatory response in RA-FLSs. PPM1A was targeted by miR-140-3p, and circMAPK9 could regulate PPM1A expression by sponging miR-140-3p. Furthermore, miR-140-3p could impede cell biological behaviors in RA-FLSs via targeting PPM1A. Conclusion CircMAPK9 knockdown might inhibit cell proliferation, migration, invasion, inflammatory response, and facilitate apoptosis in RA-FLSs via regulating miR-140-3p/PPM1A axis, offering a new mechanism for the comprehension of RA development and a new insight into the potential application of circMAPK9 in RA treatment.
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Affiliation(s)
- Zhihuan Luo
- Department of Sports Medical, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou People's Hospital, No.17 Hongqi Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China
| | - Shaojian Chen
- Department of Sports Medical, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou People's Hospital, No.17 Hongqi Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China.
| | - Xiaguang Chen
- Department of Sports Medical, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou People's Hospital, No.17 Hongqi Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China
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Cheng B, Tian J, Chen Y. Identification of RNA binding protein interacting with circular RNA and hub candidate network for hepatocellular carcinoma. Aging (Albany NY) 2021; 13:16124-16143. [PMID: 34133325 PMCID: PMC8266373 DOI: 10.18632/aging.203139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/18/2021] [Indexed: 12/12/2022]
Abstract
The interaction between RNA binding protein (RBP) and circular RNA (circRNA) is important for the regulation of tumor progression. This study aimed to identify the RBP-circRNA network in hepatocellular carcinoma (HCC). 22 differentially expressed (DE) circRNAs in HCC were screened out from Gene Expression Omnibus (GEO) database and their binding RBPs were predicted by Circular RNA Interactome. Among them, 17 DERBPs, which were commonly dysregulated in HCC from The Clinical Proteomic Tumor Analysis Consortium (CPTAC), The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) projects, were utilized to construct the RBP-circRNA network. Through survival analysis, we found TARDBP was the only prognostic RBP for HCC in CPTAC, TCGA and ICGC projects. High expression of TARDBP was correlated with high grade, advanced stage and low macrophage infiltration of HCC. Additionally, gene set enrichment analysis showed that dysregulated TARDBP might be involved in some pathways related to the HCC pathogenesis. Therefore, a hub RBP-circRNA network was generated based on TARDBP. RNA immunoprecipitation and RNA pull-down confirmed that hsa_circ_0004913 binds to TARDBP. These findings indicated certain RBP-circRNA regulatory network potentially involved in the pathogenesis of HCC, which provides novel insights into the mechanism study and biomarker identification for HCC.
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Affiliation(s)
- Binglin Cheng
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Jingdong Tian
- School of Biomedical Engineering, Xinhua College of Sun Yat-Sen University, Guangzhou, Guangdong Province 510520, China
| | - Yuhan Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province 510515, China
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Wang M, Wu M, Xie T, Chen J. Circular RNAs Sparkle in the Diagnosis and Theranostics of Hepatocellular Carcinoma. Front Genet 2021; 11:628655. [PMID: 33679871 PMCID: PMC7930616 DOI: 10.3389/fgene.2020.628655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/21/2020] [Indexed: 12/15/2022] Open
Abstract
Exonic circular RNAs (circRNAs) are a novel subgroup of non-coding RNAs, which are generated by a back-splicing mechanism of the exons or introns. Unlike the linear RNA, circRNA forms a covalently closed loop, and it normally appears more abundant than the linear products of its host gene. Due to the relatively high specificity and stability of circular RNAs in tissues and body fluid, circular RNAs have attracted widely scientific interest for its potential application in cancer diagnosis and as a guide for preclinical therapy, especially for hard-to-treat cancers with high heterogeneity, such as hepatocellular carcinoma (HCC). Thus, we summarize the updated knowledge of circular RNAs, including the mechanism of the generation of endogenous circular RNAs and their regulatory, diagnostic, and therapeutic roles in HCC.
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Affiliation(s)
- Menglan Wang
- College of Pharmacy, School of Medicine, Department of Hepatology, Institute of Hepatology and Metabolic Diseases, Institute of Integrated Chinese and Western Medicine for Oncology, The Affiliated Hospital of Hangzhou Normal University, Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Minjie Wu
- College of Pharmacy, School of Medicine, Department of Hepatology, Institute of Hepatology and Metabolic Diseases, Institute of Integrated Chinese and Western Medicine for Oncology, The Affiliated Hospital of Hangzhou Normal University, Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Tian Xie
- College of Pharmacy, School of Medicine, Department of Hepatology, Institute of Hepatology and Metabolic Diseases, Institute of Integrated Chinese and Western Medicine for Oncology, The Affiliated Hospital of Hangzhou Normal University, Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Jianxiang Chen
- College of Pharmacy, School of Medicine, Department of Hepatology, Institute of Hepatology and Metabolic Diseases, Institute of Integrated Chinese and Western Medicine for Oncology, The Affiliated Hospital of Hangzhou Normal University, Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China.,Laboratory of Cancer Genomics, Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore, Singapore
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Yang Z, Zi Q, Xu K, Wang C, Chi Q. Development of a macrophages-related 4-gene signature and nomogram for the overall survival prediction of hepatocellular carcinoma based on WGCNA and LASSO algorithm. Int Immunopharmacol 2020; 90:107238. [PMID: 33316739 DOI: 10.1016/j.intimp.2020.107238] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/11/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Immune system instability and poor prognosis are the two major clinical performance of hepatocellular carcinoma (HCC). Abnormal expression of MiR-424-5p has been reported to accelerate the progression of liver cancer, but it mediated immune cell infiltration imbalance is still unknown. We aim to mine the immune-related genes (IRGs) targeted by miR-424-5p and construct a multi-gene signature to improve the prognostic prediction of HCC. METHODS The HCC-related data of the cancer genome atlas (TCGA) database and the GSE14520 dataset of the gene expression omnibus (GEO) database were downloaded as the discovery dataset and the validation dataset, respectively. Weighted gene co-expression network analysis (WGCNA), the deconvolution algorithm of CIBERSORT and LASSO algorithm participated in the identification of IRGs and the development of prognostic signature and nomogram. RESULTS Our study found that the abundance of macrophages M0, M1 and M2 are all drastically changed during the cancerous process. A total of 920 macrophages infiltration-related LRGs were identified and a novel 4-gene signature (CDCA8, CBX2, UCK2 and SOCS2) with superior prognostic independence was established. The prognostic signature based risk score has superior capability to identify high-risk patients and predict overall survival (p < 0.001; AUC = 0.798 for 1 year; AUC = 0.748 for 3 years; AUC = 0.721 for 5 years). And it (C-index = 0.726) has a better prognostic potential than the TNM stage (C-index = 0.619), which is widely adopted in clinical practice. Additionally, the nomogram formed by combining the risk score and TNM stage further improved the accuracy of survival prediction (C-index = 0.733). CONCLUSION In summary, the immune landscape with abnormal infiltration of macrophages may be one of the prelude to the cancerous process. The novel macrophages-related 4-gene signature is expected to become a potential prognostic marker in liver cancer.
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Affiliation(s)
- Zichang Yang
- Department of Mechanics and Engineering Structure, Wuhan University of Technology, China
| | - Quan Zi
- Department of Mechanics and Engineering Structure, Wuhan University of Technology, China
| | - Kang Xu
- Hubei Engineering Technology Research Center of TCM Processing, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Chunli Wang
- "111" Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Qingjia Chi
- Department of Mechanics and Engineering Structure, Wuhan University of Technology, China.
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