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Jiang H, Meng T, Li Z. Role of circular RNAs in preeclampsia (Review). Exp Ther Med 2024; 28:372. [PMID: 39091629 PMCID: PMC11292168 DOI: 10.3892/etm.2024.12661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 06/25/2024] [Indexed: 08/04/2024] Open
Abstract
Preeclampsia (PE) is a hypertensive disorder of pregnancy characterized by new-onset hypertension and proteinuria after 20 weeks of gestation, which affects 3-8% of pregnant individuals worldwide each year. Prevention, diagnosis and treatment of PE are some of the most important problems faced by obstetrics. There is growing evidence that circular RNAs (circRNAs) are involved in the pathogenesis of PE. The present review summarizes the research progress of circRNAs and then describes the expression patterns of circRNAs in PE and their functional mechanisms affecting PE development. The role of circRNAs as biomarkers for the diagnosis of PE, and the research status of circRNAs in PE are summarized in the hope of finding novel strategies for the prevention and treatment of PE.
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Affiliation(s)
- Hengxue Jiang
- Department of Obstetrics, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
- Department of Obstetrics and Gynecology, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Tao Meng
- Department of Obstetrics, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ziwei Li
- Department of Obstetrics, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Shi Y, Shen F, Chen X, Sun M, Zhang P. Current understanding of circular RNAs in preeclampsia. Hypertens Res 2024; 47:1607-1619. [PMID: 38605141 DOI: 10.1038/s41440-024-01675-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/28/2024] [Accepted: 03/22/2024] [Indexed: 04/13/2024]
Abstract
Preeclampsia (PE) is a multiple organ and system disease that seriously threatens the safety of the mother and infant during pregnancy, and has a profound impact on the morbidity and mortality of the mother and new babies. Presently, there are no remedies for cure of PE as to the mechanisms of PE are still unclear, and the only way to eliminate the symptoms is to deliver the placenta. Thus, new therapeutic targets for PE are urgently needed. Approximately 95% of human transcripts are thought to be non-coding RNAs, and the roles of them are to be increasingly recognized of great importance in various biological processes. Circular RNAs (circRNAs) are a class of non-coding RNAs, with no 5' caps and 3' polyadenylated tails, commonly produced by back-splicing of exons. The structure of circRNAs makes them more stable than their counterparts. Increasing evidence shows that circRNAs are involved in the pathogenesis of PE, but the biogenesis, functions, and mechanisms of circRNAs in PE are poorly understood. In the present review, we mainly summarize the biogenesis, functions, and possible mechanisms of circRNAs in the development and progression of PE, as well as opportunities and challenges in the treatment and prevention of PE.
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Affiliation(s)
- Yajun Shi
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Fangrong Shen
- Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xionghui Chen
- Department of Emergency Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China.
- Institute of Trauma Medicine, Soochow University, Suzhou, China.
- Jiangsu Provincial Medical Innovation Center of Trauma Medicine, Suzhou, China.
| | - Miao Sun
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China.
| | - Pengjie Zhang
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China.
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Chen Y, Ye Z, Lin M, Zhu L, Xu L, Wang X. Deciphering the Epigenetic Landscape: Placental Development and Its Role in Pregnancy Outcomes. Stem Cell Rev Rep 2024; 20:996-1014. [PMID: 38457061 DOI: 10.1007/s12015-024-10699-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2024] [Indexed: 03/09/2024]
Abstract
The placenta stands out as a unique, transitory, and multifaceted organ, essential to the optimal growth and maturation of the fetus. Functioning as a vital nexus between the maternal and fetal circulatory systems, it oversees the critical exchange of nutrients and waste. This exchange is facilitated by placental cells, known as trophoblasts, which adeptly invade and remodel uterine blood vessels. Deviations in placental development underpin a slew of pregnancy complications, notably fetal growth restriction (FGR), preeclampsia (PE), recurrent spontaneous abortions (RSA), and preterm birth. Central to placental function and development is epigenetic regulation. Despite its importance, the intricate mechanisms by which epigenetics influence the placenta are not entirely elucidated. Recently, the scientific community has turned its focus to parsing out the epigenetic alterations during placental development, such as variations in promoter DNA methylation, genomic imprints, and shifts in non-coding RNA expression. By establishing correlations between epigenetic shifts in the placenta and pregnancy complications, researchers are unearthing invaluable insights into the biology and pathophysiology of these conditions. This review seeks to synthesize the latest findings on placental epigenetic regulation, spotlighting its crucial role in shaping fetal growth trajectories and development. Through this lens, we underscore the overarching significance of the placenta in the larger narrative of gestational health.
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Affiliation(s)
- Yujia Chen
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- National Health Commission (NHC), Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital, Fuzhou, China
| | - Zhoujie Ye
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- National Health Commission (NHC), Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital, Fuzhou, China
| | - Meijia Lin
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Liping Zhu
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
- National Health Commission (NHC), Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital, Fuzhou, China
| | - Liangpu Xu
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Provincial Key Laboratory of Prenatal Diagnosis and Birth Defect, Fuzhou, China.
| | - Xinrui Wang
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.
- National Health Commission (NHC), Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital, Fuzhou, China.
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Cordier AG, Zerbib E, Favier A, Dabi Y, Daraï E. Value of Non-Coding RNA Expression in Biofluids to Identify Patients at Low Risk of Pathologies Associated with Pregnancy. Diagnostics (Basel) 2024; 14:729. [PMID: 38611642 PMCID: PMC11011513 DOI: 10.3390/diagnostics14070729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Pregnancy-related complications (PRC) impact maternal and fetal morbidity and mortality and place a huge burden on healthcare systems. Thus, effective diagnostic screening strategies are crucial. Currently, national and international guidelines define patients at low risk of PRC exclusively based on their history, thus excluding the possibility of identifying patients with de novo risk (patients without a history of disease), which represents most women. In this setting, previous studies have underlined the potential contribution of non-coding RNAs (ncRNAs) to detect patients at risk of PRC. However, placenta biopsies or cord blood samples are required, which are not simple procedures. Our review explores the potential of ncRNAs in biofluids (fluids that are excreted, secreted, or developed because of a physiological or pathological process) as biomarkers for identifying patients with low-risk pregnancies. Beyond the regulatory roles of ncRNAs in placental development and vascular remodeling, we investigated their specific expressions in biofluids to determine favorable pregnancy outcomes as well as the most frequent pathologies of pregnant women. We report distinct ncRNA panels associated with PRC based on omics technologies and subsequently define patients at low risk. We present a comprehensive analysis of ncRNA expression in biofluids, including those using next-generation sequencing, shedding light on their predictive value in clinical practice. In conclusion, this paper underscores the emerging significance of ncRNAs in biofluids as promising biomarkers for risk stratification in PRC. The investigation of ncRNA expression patterns and their potential clinical applications is of diagnostic, prognostic, and theragnostic value and paves the way for innovative approaches to improve prenatal care and maternal and fetal outcomes.
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Affiliation(s)
| | - Elie Zerbib
- Department of Obstetrics and Reproductive Medicine, Sorbonne University, Hôpital Tenon, 4 Rue de la Chine, 75020 Paris, France; (A.-G.C.); (Y.D.)
| | | | | | - Emile Daraï
- Department of Obstetrics and Reproductive Medicine, Sorbonne University, Hôpital Tenon, 4 Rue de la Chine, 75020 Paris, France; (A.-G.C.); (Y.D.)
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Ge M, Wang M, Liu Y, Yue H, Ding J, Wang X, Yao T, Gao H. Proteomic Analysis of Preeclampsia Amniotic Fluid Based on a Novel Solid-State Preservation Method. Biopreserv Biobank 2024. [PMID: 38452333 DOI: 10.1089/bio.2023.0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024] Open
Abstract
Objective: Amniotic fluid (AF) plays a crucial role in diagnosing and predicting perinatal diseases, specifically preeclampsia (PE). Adequate preservation of AF samples is essential for advancing the development of PE-related biomarkers and understanding the disease's mechanisms. Materials and Methods: This study presents a method for preserving proteins in AF on a solid medium, specifically a nitrocellulose membrane, which is referred to as an AF membrane. Samples were collected from normotensive subjects and PE patients and treated with direct freezing and the AF membrane methods, respectively. Protein quality was assessed through sodium dodecyl sulfate-page and capillary electrophoresis. Liquid chromatography tandem mass spectrometry (LC-MS/MS) with data-independent acquisition was employed for proteomic analysis. Bioinformatics analysis identified differentially expressed proteins and pathways distinguishing normotensive subjects from PE patients. Results: Comparison of the AF membrane method to the direct freezing method showed no significant impact on the protein content in the AF. The preservation methods employed did not result in evident protein differences or degradation in the AF obtained from both normotensive subjects and PE patients. Analysis based on Gene Ontology and HALLMARK gene sets revealed the upregulation of pathways associated with angiotensin, reactive oxygen species, and coagulation in PE patients. Furthermore, several biomarkers previously reported to be increased in PE serum, namely ENG, ERN1, FLT1, GDF15, HSPA5, LGALS3, PAPPA, PTX3, and SERPINE1, were significantly elevated in the AF. Conclusion: The AF membrane method proved to be highly effective, reliable, and durable for preserving proteins in AF samples. Preserving AF samples in a solid state holds significant value in discovering novel protein biomarkers and investigating the underlying mechanisms of PE.
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Affiliation(s)
- Meiling Ge
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Mengru Wang
- Department of Radiology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, People's Republic of China
| | - Yanhong Liu
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Hu Yue
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Jie Ding
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Xiaowei Wang
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Tianlin Yao
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Hong Gao
- Department of Biobank, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
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Lu C, Zheng F, Pan L, Han Q, Wu J, Zhang W. Suppression of circular RNA serum and glucocorticoid-induced kinase 1 elevates antioxidant molecules and angiogenesis in trophoblast cells to attenuate preeclampsia via microRNA-508-3p to target and restrain PUM homolog 1. J Obstet Gynaecol Res 2024; 50:322-333. [PMID: 38081797 DOI: 10.1111/jog.15843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 11/20/2023] [Indexed: 03/04/2024]
Abstract
AIM Preeclampsia (PE) is a pregnancy-specific syndrome characterized by hypertension and proteinuria. Recently, multiple circular RNAs (circRNAs) were considered latent clinical diagnostic markers or therapeutic targets. This study was to explore the impact of circRNA serum and glucocorticoid-induced kinase 1 (SGK1) on PE via influencing the microRNA (miR)-508-3p/PUM homolog 1 (PUM1) axis. METHODS Placental tissues of 34 pregnant women with PE and 34 normal pregnant women were collected to measure circRNA SGK1 (circSGK1), miR-508-3p, and PUM1. Human placental trophoblasts HTR-8/SVneo were transfected with plasmids, thereafter to observe proliferation, migration, invasion, and apoptosis, analyze antioxidant molecules Troxerutin (TXN), Glutamate-cysteine ligase catalytic subunit (GCLC), NAD (P) H-quinone oxidoreductase 1 (NQO1), and determine angiogenesis. After the construction of the PE rat model, antioxidant molecules TXN, GCLC, and NQO1, vascular-associated factor vascular endothelial growth factor A (VEGF-A), and histopathological conditions were tested. Examination of the binding of circSGK1 and miR-508-3p with PUM1 was performed. RESULTS Our data showed that circSGK1 expression was elevated in the placenta of patients with PE. Silenced circSGK1 or elevated miR-508-3p promoted the growth and antioxidant molecules and angiogenesis in trophoblast cells; CircSGK1 combined with miR-508-3p, and miR-508-3p targeted PUM1. CONCLUSIONS In summary, suppression of circSGK1 augments antioxidant molecules and angiogenesis in trophoblast cells to attenuate PE via miR-508-3p to target PUM1.
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Affiliation(s)
- CaiXia Lu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - FuMin Zheng
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - LiXiao Pan
- Department of Anesthesiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - QingFang Han
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - JiXia Wu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - WenKe Zhang
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Zhou W, Li X, Li X, Liu Y, Song W, Yang Q. The role of circular RNA in preeclampsia: From pathophysiological mechanism to clinical application. Life Sci 2024; 338:122407. [PMID: 38184270 DOI: 10.1016/j.lfs.2023.122407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
Preeclampsia (PE) is a common pregnancy-induced hypertension disorder that poses a significant threat to the health of pregnant women and fetuses, and has become a leading cause of maternal, fetal, and neonatal mortality. Currently, the therapy strategy for PE is mainly prevention management and symptomatic treatment, and only delivery can completely terminate PE. Therefore, a deeper understanding of the pathogenesis of PE is needed to make treatment and prevention more effective and targeted. With the deepening of molecular etiology research, circular RNAs (circRNAs) have been found to be widely involved in various processes of PE pathogenesis. As a kind of RNA with a special "head to tail" loop structure, the characteristics of circRNAs enable them to play diverse roles in the pathophysiology of PE, and can also serve as ideal biomarkers for early prediction and monitoring progression of PE. In this review, we summarized the latest research on PE-related circRNAs, trying to elucidate the unique or shared roles of circRNAs in various pathophysiological mechanisms of PE, aiming to provide a whole picture of current research on PE-related circRNAs, and extend a new perspective for the precise screening and targeted therapy of PE.
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Affiliation(s)
- Wenjing Zhou
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China; Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Xiuying Li
- Medical Research Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
| | - Xin Li
- Medical College, Jilin Engineering Vocational College, Siping, Jilin, China.
| | - Yaojia Liu
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China.
| | - Wenling Song
- Department of Obstetrics, The First Hospital of Jilin University, Changchun, Jilin, China.
| | - Qiwei Yang
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China.
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Zhou J, Zhao Y, An P, Zhao H, Li X, Xiong Y. Hsa_circ_0002348 regulates trophoblast proliferation and apoptosis through miR-126-3p/BAK1 axis in preeclampsia. J Transl Med 2023; 21:509. [PMID: 37507742 PMCID: PMC10375637 DOI: 10.1186/s12967-023-04240-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 05/31/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Preeclampsia is a common pregnancy complication characterized by high blood pressure and damage to organs. Abnormal placenta and vascular function can lead to preeclampsia. Accumulating evidence has suggested a potential link between circular RNAs (circRNAs) and preeclampsia. As a placenta and endothelial-expressed circRNA, hsa_circ_0002348, may be promising to be the novel molecular target for preeclampsia. However, the function and mechanism of hsa_circ_0002348 in preeclampsia has not been elucidated. MATERIALS AND METHODS An overlap analysis of two circRNA profiles from placenta and endothelial cells was used to identify a functionally unknown circRNA, hsa_circ_0002348. Quantitative real-time PCR (qRT-PCR) and in situ hybridization (ISH) were used to detect its expression in the trophoblast cells and placental tissues. The mouse model of lipopolysaccharide (LPS)-induced preeclampsia was established to determine the in vivo role of hsa_circ_0002348. RNA immunoprecipitation (RIP), Luciferase reporter assay, qRT-PCR, western blot, gain- and loss-of-function and rescue experiments were conducted to uncover the role of hsa_circ_0002348 and its interaction with miR-126-3p and BAK1 in regulating trophoblast proliferation and apoptosis. Fluorescence in situ hybridization (FISH) and Immunohistochemistry (IHC) were performed to examine the expression of miR-126-3p and BAK1 in mice and human placentas, respectively. RESULTS Hsa_circ_0002348 was significantly increased in the preeclampsia placentas, and positively correlated with the severity of preeclampsia patients' clinical manifestations. Its overexpression exacerbated preeclampsia-like features in the mouse model of LPS-induced preeclampsia. Functionally, hsa_circ_0002348 was found to inhibit trophoblast proliferation and promote trophoblast apoptosis. Mechanistically, hsa_circ_0002348, as an endogenous miR-126-3p sponge, upregulated the expression of BAK1. Additionally, both hsa_circ_0002348 knockdown and miR-126-3p overexpression enhanced the mammalian target of rapamycin (mTOR) and ERK1/2 signaling pathway. CONCLUSIONS Hsa_circ_0002348 might be a novel regulator of trophoblast proliferation and apoptosis through miR-126-3p/BAK1 axis in preeclampsia, which may serve as a potential target for detecting and treating preeclampsia.
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Affiliation(s)
- Jizi Zhou
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Ying Zhao
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Ping An
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Huanqiang Zhao
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Xiaotian Li
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China.
- Institute of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Yu Xiong
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China.
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Zheng E, Xiao D. Exploration into Plasma Hsa_circ_0052184 as a New Biomarker of Colorectal Cancer Prognosis. Pharmgenomics Pers Med 2023; 16:589-597. [PMID: 37333495 PMCID: PMC10275319 DOI: 10.2147/pgpm.s413451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/26/2023] [Indexed: 06/20/2023] Open
Abstract
Background Circular RNAs (circRNAs) are strong modulators of tumor pathology. Herein, our goal was to examine the plasma hsa_circ_0052184 content among colorectal cancer (CRC) patients, and assess its association with patient clinicopathological profile and diagnostic values. Methods Overall, we collected 228 presurgical CRC and 146 normal plasma samples from The First People's Hospital of Wenling. Circulating hsa_circ_0052184 levels were assessed via qRT-PCR, and the diagnostic prediction was conducted with the receiver operating characteristic (ROC) curve. Results Relative to healthy controls, CRC patients exhibited markedly enhanced circulating hsa_circ_0052184 levels, which were closely correlated with advanced stage of disease and worse outcome. Based on our uni- (UA) and multivariate assessments (MA), elevated hsa_circ_0052184 levels were a stand-alone predictor of poor prognosis. The ROC curve depicted an area under the curve (AUC) for CRC diagnosis to be 0.9072. Conclusion Circulating hsa_circ_0052184 is a potential bioindicator of CRC outcome.
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Affiliation(s)
- Enqi Zheng
- Hernia Vascular Surgery, The First People’s Hospital of Wenling, Wenling, Zhejiang, People’s Republic of China
| | - Deshuang Xiao
- Hernia Vascular Surgery, The First People’s Hospital of Wenling, Wenling, Zhejiang, People’s Republic of China
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Huang CC, Hsueh YW, Chang CW, Hsu HC, Yang TC, Lin WC, Chang HM. Establishment of the fetal-maternal interface: developmental events in human implantation and placentation. Front Cell Dev Biol 2023; 11:1200330. [PMID: 37266451 PMCID: PMC10230101 DOI: 10.3389/fcell.2023.1200330] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/09/2023] [Indexed: 06/03/2023] Open
Abstract
Early pregnancy is a complex and well-orchestrated differentiation process that involves all the cellular elements of the fetal-maternal interface. Aberrant trophoblast-decidual interactions can lead to miscarriage and disorders that occur later in pregnancy, including preeclampsia, intrauterine fetal growth restriction, and preterm labor. A great deal of research on the regulation of implantation and placentation has been performed in a wide range of species. However, there is significant species variation regarding trophoblast differentiation as well as decidual-specific gene expression and regulation. Most of the relevant information has been obtained from studies using mouse models. A comprehensive understanding of the physiology and pathology of human implantation and placentation has only recently been obtained because of emerging advanced technologies. With the derivation of human trophoblast stem cells, 3D-organoid cultures, and single-cell analyses of differentiated cells, cell type-specific transcript profiles and functions were generated, and each exhibited a unique signature. Additionally, through integrative transcriptomic information, researchers can uncover the cellular dysfunction of embryonic and placental cells in peri-implantation embryos and the early pathological placenta. In fact, the clinical utility of fetal-maternal cellular trafficking has been applied for the noninvasive prenatal diagnosis of aneuploidies and the prediction of pregnancy complications. Furthermore, recent studies have proposed a viable path toward the development of therapeutic strategies targeting placenta-enriched molecules for placental dysfunction and diseases.
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Zhang Y, Zhao Y, Yu F, Li X, Chen X, Zhu D, Sun J, Huang Q, Li M, Sun M, Zhang P. CircRNA_06354 might promote early-onset preeclampsia in humans via hsa-miR-92a-3p/vascular endothelial growth factor-A. J Hypertens 2023; 41:494-507. [PMID: 36728267 DOI: 10.1097/hjh.0000000000003366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Early-onset preeclampsia (EOPE) is a serious pregnancy disorder with multisystem complications. Recently, circRNA was reported to participate in the progression of EOPE. However, the role and mechanism of circRNA_06354 in the pathophysiological development of EOPE remain unclear. METHODS Blood samples from patients with EOPE and healthy pregnant controls (CTRL) were analyzed by RNA-seq. functions and mechanisms of circRNA_06354 in EOPE were investigated by a series of experiments. An EOPE rat model was constructed to detect the expression levels of circRNA_06354. RESULTS The level of circRNA_06354 was altered in EOPE and CTRL individuals, as well as EOPE and CTRL rats. CircRNA_06354 had a sensitivity of 88.9% and a specificity of 100% in predicting EOPE. Subcellular localization indicated that circRNA_06354 was primarily detected in the cytoplasm of HTR8-/SV-neo cells and the cytotrophoblast of EOPE placentas. In addition, circRNA_06354 transcription was markedly higher than that of its linear counterpart. RNA pull-down assays implied that hsa-miR-92a-3p might sponge circRNA_06354. Vascular endothelial growth factor-A (VEGF-A) levels were found to be increased in EOPE patients. Moreover, overexpression of circRNA_06354 suppressed the migration, invasion and tube formation of trophoblastic cells invading spiral arteries or the endometrium. CONCLUSION CircRNA_06354 inhibits trophoblastic cell invasion, migration and tube formation toward the endometrium in the initiation of EOPE. The circRNA_06354/hsa-miR-92a-3p/VEGF-A axis might be a therapeutic target in the prevention and treatment of EOPE.
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Affiliation(s)
- Yueming Zhang
- Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University
| | - Yuanyuan Zhao
- Department of Pathology and Pathophysiology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou
| | - Fangfang Yu
- Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University
| | - Xiang Li
- Department of Reproductive Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu
| | | | - Dan Zhu
- Institute for Fetology, The First Affiliated Hospital of Soochow University
| | - Jie Sun
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Orthopaedic Institute of Soochow University, Soochow University, Suzhou, China
| | - Qin Huang
- Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University
| | - Min Li
- Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University
| | - Miao Sun
- Institute for Fetology, The First Affiliated Hospital of Soochow University
| | - Pengjie Zhang
- Institute for Fetology, The First Affiliated Hospital of Soochow University
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Li N, Gu Y, Tang J, Li Y, Chen D, Xu Z. Circulating Non-coding RNAs and Exosomes: Liquid Biopsies for Monitoring Preeclampsia. Methods Mol Biol 2023; 2695:263-277. [PMID: 37450125 DOI: 10.1007/978-1-0716-3346-5_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Preeclampsia (PE) remains a leading cause of maternal and fetal mortality, due to ineffective treatment and diagnostic strategies, compounded by the lack of clarity on the etiology of the disorder. The early prediction or accurate diagnosis of PE is a concern of researchers. Liquid biopsy can be analyzed for cell-free nucleic acids and exosomes. Because circulating non-coding RNAs (ncRNAs) and peripheral blood exosomes can be detected in the peripheral blood of women in early pregnancy, these vesicles and their contents have become the focus of research on early predictive and diagnostic biomarkers for preeclampsia. In this review, we focus on recent studies addressing the roles of circulating ncRNAs and exosomes in PE, with particular attention paid to the potential application value of placenta-derived exosomes and circulating ncRNAs as PE-specific biomarkers.
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Affiliation(s)
- Na Li
- Lab of Perinatal Medicine, Wuxi Maternity and Child Health Care Hospital, Wuxi, Jiangsu, China
| | - Ying Gu
- Lab of Perinatal Medicine, Wuxi Maternity and Child Health Care Hospital, Wuxi, Jiangsu, China
| | - Jiaqi Tang
- Institute for Fetology, First Hospital of Soochow University, Suzhou, China
| | - Yongmei Li
- Department of Obstetrics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Daozhen Chen
- Lab of Perinatal Medicine, Wuxi Maternity and Child Health Care Hospital, Wuxi, Jiangsu, China
| | - Zhice Xu
- Lab of Perinatal Medicine, Wuxi Maternity and Child Health Care Hospital, Wuxi, Jiangsu, China
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13
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Sun N, Liu S, Chen A. Diagnostic value of non-coding RNAs in ovarian cancer. J OBSTET GYNAECOL 2022; 42:3416-3423. [PMID: 36476021 DOI: 10.1080/01443615.2022.2151351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The type of primary tumour of the ovary ranks first among all organs in the body. Although the incidence of malignant ovarian tumour ranks third among gynaecological malignancies, it is the most fatal type. A lack of effective diagnostic methods for early ovarian cancer remains, and the efficacy of advanced ovarian cancer is often unsatisfactory; the five-year survival rate of stage III-IV is less than 30%. Non-coding RNA is RNA that does not have protein-coding potential and was once considered as 'junk DNA'. However, increasing number of studies have shown that the disorder of non-coding RNA is related to a variety of diseases, including the occurrence and development of tumours. We summarised the dysregulated non-coding RNAs (miRNAs, circRNAs, and lncRNAs) reported currently in ovarian cancer and their functional mechanisms, and the clinical value of different types of ncRNAs as diagnostic or predictive markers for ovarian cancer, providing further evidence for non-coding RNAs to be considered as biomarkers of ovarian cancer.
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Affiliation(s)
- Ningxia Sun
- Department of Gynecology and Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shiguo Liu
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, Qingdao, China
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Aiping Chen
- Department of Gynecology and Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
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14
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Kannampuzha S, Ravichandran M, Mukherjee AG, Wanjari UR, Renu K, Vellingiri B, Iyer M, Dey A, George A, Gopalakrishnan AV. The mechanism of action of non-coding RNAs in placental disorders. Biomed Pharmacother 2022; 156:113964. [DOI: 10.1016/j.biopha.2022.113964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
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15
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Gao X, Tian X, Huang Y, Fang R, Wang G, Li D, Zhang J, Li T, Yuan R. Role of circular RNA in myocardial ischemia and ageing-related diseases. Cytokine Growth Factor Rev 2022; 65:1-11. [PMID: 35561533 DOI: 10.1016/j.cytogfr.2022.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 01/10/2023]
Abstract
Circular RNA (circRNA) is a new endogenous transcription product, which has attracted significant attention in RNA biology research.CircRNA comprise exons or introns involved in regulation of various mechanisms.These molecules are stable and species-specific, as well as cell and tissue-specific.Cardiovascular diseases particularly myocardial ischemia and ageing-related diseases, pose a major health care burden and novel treatments and biomarkers should be explored.Recent findings indicate that circRNAs are implicated in biological processes, such as glucose metabolism, fatty acid oxidation, mitochondrial biosynthesis, implying that they are potential targets for myocardial ischemia treatment.In the present review, the functions of circRNAs in the heart are described, with emphasis given on in the relationship with myocardial ischemia and cardiac aging-related diseases.Directions for future research are also summarized.
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Affiliation(s)
- Xiaolong Gao
- School of Graduate, Shaanxi University of Chinese Medicine, No. 1 Middle section of Shiji Avenue, Xianyang 712046, China; Department of Cardiology, Shaanxi Provincial Hospital of Chinese Medicine, No.4 Xihuamen Street, Xi'an 710003, China
| | - Xin Tian
- Department of Cardiology, Shaanxi Provincial Hospital of Chinese Medicine, No.4 Xihuamen Street, Xi'an 710003, China
| | - Ye Huang
- Department of Emergency, Xiyuan Hospital, China Academy of Chinese Medical Sciences, No.1 Xiyuan Playground Street, Beijing 100091, China
| | - Rong Fang
- School of Graduate, Shaanxi University of Chinese Medicine, No. 1 Middle section of Shiji Avenue, Xianyang 712046, China
| | - Gendi Wang
- School of Graduate, Shaanxi University of Chinese Medicine, No. 1 Middle section of Shiji Avenue, Xianyang 712046, China; Department of Cardiology, Shaanxi Provincial Hospital of Chinese Medicine, No.4 Xihuamen Street, Xi'an 710003, China
| | - Dan Li
- School of Graduate, Shaanxi University of Chinese Medicine, No. 1 Middle section of Shiji Avenue, Xianyang 712046, China; Department of Cardiology, Shaanxi Provincial Hospital of Chinese Medicine, No.4 Xihuamen Street, Xi'an 710003, China
| | - Junru Zhang
- Department of Cardiology, Shaanxi Provincial Hospital of Chinese Medicine, No.4 Xihuamen Street, Xi'an 710003, China.
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an 710032, China.
| | - Ruihua Yuan
- School of Graduate, Shaanxi University of Chinese Medicine, No. 1 Middle section of Shiji Avenue, Xianyang 712046, China; Real World Clinical Research Institute, Shaanxi University of Chinese Medicine, No. 1 Middle section of Shiji Avenue, Xianyang 712046, China.
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16
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Arthurs AL, Jankovic-Karasoulos T, Smith MD, Roberts CT. Circular RNAs in Pregnancy and the Placenta. Int J Mol Sci 2022; 23:ijms23094551. [PMID: 35562943 PMCID: PMC9100345 DOI: 10.3390/ijms23094551] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/16/2022] [Accepted: 04/19/2022] [Indexed: 01/27/2023] Open
Abstract
The emerging field of circular RNAs (circRNAs) has identified their novel roles in the development and function of many cancers and inspired the interest of many researchers. circRNAs are also found throughout the healthy body, as well as in other pathological states, but while research into the function and abundance of circRNAs has progressed, our overall understanding of these molecules remains primitive. Importantly, recent studies are elucidating new roles for circRNAs in pregnancy, particularly in the placenta. Given that many of the genes responsible for circRNA production in cancer are also highly expressed in the placenta, it is likely that the same genes act in the production of circRNAs in the placenta. Furthermore, placental development can be referred to as ‘controlled cancer’, as it shares many key signalling pathways and hallmarks with tumour growth and metastasis. Hence, the roles of circRNAs in this field are important to study with respect to pregnancy success but also may provide novel insights for cancer progression. This review illuminates the known roles of circRNAs in pregnancy and the placenta, as well as demonstrating differential placental expressions of circRNAs between complicated and uncomplicated pregnancies.
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17
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Zhang Y, Yang H, Zhang Y, Shi J, Long Y. A Novel Circular RNA CircBRAP May Be Used as an Early Predictor of Preeclampsia and Its Potential Mechanism. Reprod Sci 2022; 29:2565-2579. [PMID: 35015290 DOI: 10.1007/s43032-022-00842-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/31/2021] [Indexed: 11/28/2022]
Abstract
Preeclampsia (PE), a pregnancy-related multisystem syndrome, is one of the leading causes of maternal and fetal mortality worldwide. The aim of this study was to combine the plasma protein soluble Fms-related tyrosine kinase 1 (sFLT1) levels with uterine artery Doppler ultrasound findings and CircBRAP levels during the first trimester to predict the occurrence of preeclampsia and to explore the potential mechanism by which CircBRAP functions in preeclampsia. Here, we used qRT-PCR to investigate the expression of CircBRAP in forty-nine pairs of plasma specimens and placental tissues from preeclampsia patients and control subjects. The uterine artery (UtA) pulsatility index (PI) was measured using four-dimensional color Doppler ultrasound, and the sFLT1 levels were evaluated by human immunoassay. Exogenous upregulation or downregulation of CircBRAP expression in TEV-1 trophoblast cells was performed to investigate the role of CircBRAP in cell biological behavior. Mechanistically, luciferase reporter, RNA immunoprecipitation (RIP), and biotin-coupled RNA pull-down assays were conducted to verify the relationship between CircBRAP and sFLT1 in TEV-1 cells. The results showed that the predictive power was strengthened when the plasma sFLT1 and CircBRAP levels were combined with the UtA-PI to predict preeclampsia occurrence. Our study also revealed that CircBRAP may regulate miR-106b and the HIF-2α axis to modulate the proliferation, invasion, and apoptosis of TEV-1 trophoblast cells. In summary, placenta-derived CircBRAP in plasma may be a novel biomarker for preeclampsia that, together with plasma sFLT1 levels and uterine artery Doppler ultrasound findings, can more effectively predict preeclampsia, and CircBRAP may play a potential role in preeclampsia.
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Affiliation(s)
- Yonggang Zhang
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, NO187, Guanlan Avenue, Shenzhen, 518110, Guangdong, China.
| | - Hongling Yang
- Department of Clinical Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China
| | - Yipeng Zhang
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, NO187, Guanlan Avenue, Shenzhen, 518110, Guangdong, China
| | - Junzhu Shi
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, NO187, Guanlan Avenue, Shenzhen, 518110, Guangdong, China
| | - Yan Long
- Department of Clinical Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China
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18
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Chen Y, Liu Y, Tao Q, Fan Y, Ma C, Li D, Huang F, Tang D. circPUM1 Activates the PI3K/AKT Signaling Pathway by Sponging to Promote the Proliferation, Invasion and Glycolysis of Pancreatic Cancer. Curr Pharm Biotechnol 2022; 23:1405-1414. [PMID: 34259142 DOI: 10.2174/1389201022666210713152457] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 05/28/2021] [Accepted: 06/06/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Our study seeks to obtain data to assess the impact of circPUM1 on pancreatic cancer (PC) and its mechanism. METHODS The expression of circPUM1 and miR-200c-3p in PC and normal tissues and PC cell lines was collected and detected, and subsequently dual-luciferase assay-based verification of the binding site of the two was carried out. After interfering with circPUM1 expression in MIAPaCa-2 and PANC-1 cells, cell proliferation, viability, apoptosis rate, invasion ability, glucose consumption, and lactate production were measured by MTT, colony formation, flow cytometry, Transwell assays, and glucose and lactate assay kits. Additionally, western blot was utilized for assessing PI3K/AKT signaling pathway-related proteins. From the results, highly expressed circPUM1 and miR-200c-3p in PC tissues and cells were proved. RESULTS Down-regulation of circPUM1 expression significantly inhibited cell proliferation, cell viability, invasion and glycolysis, while increasing the apoptosis rate. Down-regulated circPUM1 led to the inhibition of the PI3K/AKT signaling pathway activity in PC cells; while up-regulated circPUM1 increased its activity. Further experiments revealed that down-regulation of miR-200c-3p expression reversed the inhibitory effect of lowly expressed circPUM1 on PC cells. CONCLUSION In summary, circPUM1 activates PI3K/AKT signaling pathway by sponging miR-200c-3p and promotes PC progression.
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Affiliation(s)
- Yang Chen
- Department of Gastrointestinal Hepatobiliary Surgery, Shenzhen Longhua District Central Hospital, ShenZhen, Guangdong 510075, China
| | - Yuhong Liu
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
| | - Qiang Tao
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
| | - YouWen Fan
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
| | - Chao Ma
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
| | - Dong Li
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
| | - Fei Huang
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
| | - Di Tang
- Department of General Surgery, The Seventh Affiliated Hospital, Sen Yat-sen University, ShenZhen, Guangdong, 518017, China
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Wen G, Zhou T, Gu W. The potential of using blood circular RNA as liquid biopsy biomarker for human diseases. Protein Cell 2021; 12:911-946. [PMID: 33131025 PMCID: PMC8674396 DOI: 10.1007/s13238-020-00799-3] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/09/2020] [Indexed: 12/14/2022] Open
Abstract
Circular RNA (circRNA) is a novel class of single-stranded RNAs with a closed loop structure. The majority of circRNAs are formed by a back-splicing process in pre-mRNA splicing. Their expression is dynamically regulated and shows spatiotemporal patterns among cell types, tissues and developmental stages. CircRNAs have important biological functions in many physiological processes, and their aberrant expression is implicated in many human diseases. Due to their high stability, circRNAs are becoming promising biomarkers in many human diseases, such as cardiovascular diseases, autoimmune diseases and human cancers. In this review, we focus on the translational potential of using human blood circRNAs as liquid biopsy biomarkers for human diseases. We highlight their abundant expression, essential biological functions and significant correlations to human diseases in various components of peripheral blood, including whole blood, blood cells and extracellular vesicles. In addition, we summarize the current knowledge of blood circRNA biomarkers for disease diagnosis or prognosis.
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Affiliation(s)
- Guoxia Wen
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Tong Zhou
- Department of Physiology and Cell Biology, Reno School of Medicine, University of Nevada, Reno, NV, 89557, USA.
| | - Wanjun Gu
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 210096, China.
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20
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Hutchins E, Reiman R, Winarta J, Beecroft T, Richholt R, De Both M, Shahbander K, Carlson E, Janss A, Siniard A, Balak C, Bruhns R, Whitsett TG, McCoy R, Anastasi M, Allen A, Churas B, Huentelman M, Van Keuren-Jensen K. Extracellular circular RNA profiles in plasma and urine of healthy, male college athletes. Sci Data 2021; 8:276. [PMID: 34711851 PMCID: PMC8553830 DOI: 10.1038/s41597-021-01056-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 09/10/2021] [Indexed: 12/02/2022] Open
Abstract
Circular RNA (circRNA) are a recently discovered class of RNA characterized by a covalently-bonded back-splice junction. As circRNAs are inherently more stable than other RNA species, they may be detected extracellularly in peripheral biofluids and provide novel biomarkers. While circRNA have been identified previously in peripheral biofluids, there are few datasets for circRNA junctions from healthy controls. We collected 134 plasma and 114 urine samples from 54 healthy, male college athlete volunteers, and used RNASeq to determine circRNA content. The intersection of six bioinformatic tools identified 965 high-confidence, characteristic circRNA junctions in plasma and 72 in urine. Highly-expressed circRNA junctions were validated by qRT-PCR. Longitudinal samples were collected from a subset, demonstrating circRNA expression was stable over time. Lastly, the ratio of circular to linear transcripts was higher in plasma than urine. This study provides a valuable resource for characterization of circRNA in plasma and urine from healthy volunteers, one that can be developed and reassessed as researchers probe the circRNA contents of biofluids across physiological changes and disease states.
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Affiliation(s)
| | - Rebecca Reiman
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Joseph Winarta
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Taylor Beecroft
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Ryan Richholt
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Matt De Both
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | | | - Elizabeth Carlson
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Alex Janss
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Ashley Siniard
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Chris Balak
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Ryan Bruhns
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | | | - Roger McCoy
- Arizona State University Sports Medicine, 323 E Veterans Way, Tempe, AZ, 85281, USA
| | - Matthew Anastasi
- Arizona State University Sports Medicine, 323 E Veterans Way, Tempe, AZ, 85281, USA
| | - April Allen
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
| | - Brian Churas
- Neurogenomics Division, TGen, 445 N. 5th St., Phoenix, AZ, 85004, USA
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21
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Shan L, Hou X. Circular RNA hsa_circ_0026552 inhibits the proliferation, migration and invasion of trophoblast cells via the miR‑331‑3p/TGF‑βR1 axis in pre‑eclampsia. Mol Med Rep 2021; 24:798. [PMID: 34523694 PMCID: PMC8456345 DOI: 10.3892/mmr.2021.12438] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 05/24/2021] [Indexed: 12/01/2022] Open
Abstract
Globally, pre-eclampsia (PE) is a gestational disorder that causes increased morbidity of the fetus and mortality induced by pregnancy. Despite various studies, the understanding of the causes or mechanism of the development of PE remains elusive. Thus, the present study aimed to investigate the role of circular (circ)RNA hsa_circ_0026552 (hsa_circ_0026552) in the development of PE and its mechanism of regulation. hsa_circ_0026552 differential expression in PE tissue data and clinical samples were analyzed and it was observed that hsa_circ_0026552 is highly upregulated in PE samples. Furthermore, miR-331-3p was detected as an hsa_circ_0026552 target miRNA and TGF-βR1 gene as a target of miR-331-3p. These results were confirmed using various assays, including dual-luciferase reporter, reverse transcription-quantitative PCR and RNA pull-down assay. It was observed that miR-331-3p expression was negatively correlated to hsa_circ_0026552 relative expression, while TGF-βR1 expression was positively correlated to hsa_circ_0026552 expression evaluated by Pearson's correlation test. The functional experiments, including Cell Counting Kit-8, colony formation and Transwell assay, showed that silencing hsa_circ_0026552 could significantly strengthen the proliferation, migration and invasion of the trophoblastic HTR-8/SVneo cells, but the subsequent overexpression of hsa_circ_0026552 reversed this. Mechanistically, it was concluded that hsa_circ_0026552 acts as a miR-331-3p sponge to upregulate TGF-βR1 expression in trophoblasts and is involved significantly in PE development and progression in pregnant women. The circRNA hsa_circ_0026552 could be a novel therapeutic target and prognostic biomarker for PE.
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Affiliation(s)
- Li Shan
- Department of Obstetrics, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
| | - Xiaofei Hou
- Department of Prenatal Screening Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
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22
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Kim G, Han JR, Park SY, Tak WY, Kweon YO, Lee YR, Han YS, Park JG, Kang MK, Lee HW, Lee WK, Kim D, Jang SY, Hur K. Circular noncoding RNA hsa_circ_0005986 as a prognostic biomarker for hepatocellular carcinoma. Sci Rep 2021; 11:14930. [PMID: 34294754 PMCID: PMC8298461 DOI: 10.1038/s41598-021-94074-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/06/2021] [Indexed: 12/17/2022] Open
Abstract
Circular RNAs (circRNAs) represent potential biomarkers because of their highly stable structure and robust expression pattern in clinical samples. The aim of this study was to evaluate the expression of a recently identified circRNA, hsa_circ_0005986; determine its clinical significance; and evaluate its potential as a biomarker of hepatocellular carcinoma (HCC). We evaluated hsa_circ_0005986 expression in 123 HCC tissue samples, its clinical significance, and its association with patients’ clinicopathological characteristics and survival. Hsa_circ_0005986 expression was downregulated in HCC tissues. Low hsa_circ_0005986 expression was more common in tumors larger than 5 cm [odds ratio (OR), 3.19; 95% confidence interval (CI), 1.51–6.76; p = 0.002], advanced TNM stage (III/IV; OR, 2.39; 95% CI, 1.16–4.95; p = 0.018), and higher BCLC stage (B/C; OR, 2.71; 95% CI, 1.30–5.65; p = 0.007). High hsa_circ_0005986 expression was associated with improved survival and was an independent prognostic factor for overall [hazard ratio (HR), 0.572; 95% CI, 0.339–0.966; p = 0.037] and progression-free (HR, 0.573; 95% CI, 0.362–0.906; p = 0.017) survival. Moreover, the circRNA–miRNA–mRNA network was constructed using RNA-seq/miRNA-seq data and clinical information from TCGA-LIHC dataset. Our findings indicate a promising role for hsa_circ_0005986 as a prognostic biomarker in patients with HCC.
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Affiliation(s)
- Gyeonghwa Kim
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Ja Ryung Han
- Department of Surgery, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Soo Young Park
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Won Young Tak
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Young-Oh Kweon
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Yu Rim Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Young Seok Han
- Department of Surgery, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Jung Gil Park
- Department of Internal Medicine, College of Medicine, Yeungnam University, 170 Hyonchung-ro, Nam-gu, Daegu, 42415, Republic of Korea
| | - Min Kyu Kang
- Department of Internal Medicine, College of Medicine, Yeungnam University, 170 Hyonchung-ro, Nam-gu, Daegu, 42415, Republic of Korea
| | - Hye Won Lee
- Department of Pathology, Keimyung University School of Medicine, 1035 Dalgubeol-daero, Dalseo-gu, Daegu, 42601, Republic of Korea
| | - Won Kee Lee
- Biostatistics, Medical Research Collaboration Center in Kyungpook National University Hospital, School of Medicine, Kyungpook National University, 135 Dongdeok-ro, Jung-gu, Daegu, 41940, Republic of Korea
| | - Deokhoon Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Olympic-ro 43 gil 88, Song Pa-gu, Seoul, 05505, Republic of Korea
| | - Se Young Jang
- Department of Internal Medicine, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, 130 Dongdeok-ro, Jung-gu, Daegu, 41944, Republic of Korea.
| | - Keun Hur
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea.
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23
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Abstract
Preeclampsia (PE) is an idiopathic disease that occurs during pregnancy. It comprises multiple organ and system damage, and can seriously threaten the safety of the mother and infant throughout the perinatal period. As the pathogenesis of PE is unclear, there are few specific remedies. Currently, the only way to eliminate the clinical symptoms is to terminate the pregnancy. Although noncoding RNA (ncRNA) was once thought to be the "junk" of gene transcription, it is now known to be widely involved in pathological and physiological processes, including pregnancy-related disorders. Moreover, there is growing evidence that the unbalanced expression of specific ncRNA is involved in the pathogenesis of PE. In the present review, we summarize the expression patterns of ncRNAs, i.e., microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), and the functional mechanisms by which they affect the development of PE, and examine the clinical significance of ncRNAs as biomarkers for the diagnosis of PE. We also discuss the contributions made by genetic polymorphisms and epigenetic ncRNA regulation to PE. In the present review, we wish to explore and reinforce the clinical value of ncRNAs as noninvasive biomarkers of PE.
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Affiliation(s)
- Ningxia Sun
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
- Department of Gynecology and obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Shiting Qin
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Lu Zhang
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China.
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - Shiguo Liu
- Department of Medical Genetic, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266003, China.
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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Xu P, Xu X, Zhang L, Li Z, Qiang J, Yao J, Xu A. hsa_circ_0060975 is highly expressed and predicts a poor prognosis in gastric cancer. Oncol Lett 2021; 22:619. [PMID: 34257727 PMCID: PMC8243078 DOI: 10.3892/ol.2021.12880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/24/2021] [Indexed: 11/23/2022] Open
Abstract
Gastric cancer (GC) is the fifth most common cancer and GC has a high mortality rate worldwide. Circular (circ) RNAs serve an important role in cancer. The present study aimed to investigate the expression level of hsa_circ_0060975 in gastric cancer (GC) and to determine the clinical pathological significance of hsa_circ_0060975 in patients with GC. Reverse transcription-quantitative PCR was used to detect expression level of hsa_circ_0060975 in 192 GC and adjacent non-cancerous gastric tissues, in GC cell lines (MKN-45, HGC27 and AGS) and a human gastric epithelium cell line (GES-1), as well as in plasma samples from 126 patients with GC and 92 healthy volunteers. All plasma and tissue samples of were obtained from The First Affiliated Hospital of Anhui Medical University (Hefei, China). The relationship between hsa_circ_0060975 expression and clinical pathological factors was analyzed using the χ2 test. The diagnostic value of hsa_circ_0060975 was analyzed using the receiver operating characteristic curve (ROC curve), while the Kaplan-Meier method was used to analyze the relationship of hsa_circ_0060975 expression with the survival of patients with GC as determined by log-rank tests. Univariate and multivariate Cox regression analyses were used to identify the prognostic factors, including hsa_circ_0060975 expression and clinical pathological factors. In addition, the potential function of hsa_circ_0060975 was evaluated via bioinformatics analysis. The expression level of hsa_circ_0060975 was higher in GC tissues compared with adjacent non-cancerous gastric tissues, GC cell lines compared with GES-1 and plasma samples from patients with GC compared with plasma samples from healthy volunteers. In addition, higher hsa_circ_0060975 expression was associated with histological grade, pathological stage and tumor (T) classification in GC tissues and plasma samples (P<0.05). The area under the ROC curves of hsa_circ_0060975, the combination with hsa_circ_0060975 and carcinoembryonic antigen (CEA) or CEA alone were 0.804 (sensitivity, 0.746; specificity, 0.783; P<0.001); 0.931 (sensitivity, 0.937; specificity, 0.870; P<0.001) and 0.924 (sensitivity, 0.937; sspecificity, 0.804; P<0.001) respectively. The Kaplan-Meier survival analysis revealed that the overall survival (OS) and disease-free survival (DFS) time of patients with higher hsa_circ_0060975 expression were shorter compared with those in patients with lower hsa_circ_0060975 expression. Univariate and multivariate Cox regression analyses in OS and DFS time determined that the expression level of hsa_circ_0060975, histological grade and pathological stage were independent prognostic factors for patients with GC. In addition, the bioinformatics analysis results suggested that the abnormal expression of hsa_circ_0060975 may serve an important role in tumorigenesis. Hence, hsa_circ_0060975 expression may be an independent prognostic factor for patients with GC and may be a potential marker for biological malignancy.
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Affiliation(s)
- Peng Xu
- Department of General Surgery, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, P.R. China.,Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Xiaolan Xu
- Department of Critical Care Medicine, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Lixiang Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, P.R. China
| | - Zhengnan Li
- Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Jianjun Qiang
- Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Jie Yao
- Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Aman Xu
- Department of General Surgery, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, P.R. China.,Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, P.R. China
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Qi L, Sun B, Yang B, Lu S. circHIPK3 (hsa_circ_0000284) Promotes Proliferation, Migration and Invasion of Breast Cancer Cells via miR-326. Onco Targets Ther 2021; 14:3671-3685. [PMID: 34135597 PMCID: PMC8200520 DOI: 10.2147/ott.s299190] [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] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/18/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose circHIPK3 has carcinogenic or anti-tumor effects on different cancers. However, there is no relevant research showing whether circHIPK3 was involved in breast cancer (BCa). In this research, the aim was to analyze the function and possible molecular mechanism of circHIPK3 in BCa. Methods The expression of circHIPK3 in human BCa tissues and cells was detected by real-time quantitative PCR (RT-qPCR). CircInteractome and dual-luciferase assays were performed to detect circRNA-miRNA targeting relationship. Ribonuclease R treatment, RT-qPCR, Western blot and immunohistochemistry were performed to determine the stability, expressions, abundance of target genes. Loss-of-function or gain-of-function experiments were used to analyze the effects of circHIPK3 and miR-326 on BCa in vivo and in vitro. In vitro, MCF7 and BT20 cells were transfected with circHIPK3 or sicircHIPK3 or miR-326 mimic; in vivo, female BALB/c mice were subcutaneously injected with MCF7 cells (transfected with CirchipK3 or miR-326 mimic) to establish xenograft models. Results The circular structure of circHIPK3 was abundantly expressed in the cytoplasm and was up-regulated in BCa. Silenced circHIPK3 suppressed malignant phenotype of BCa cells. MiR-326 interacted with circHIPK3 and the two were negatively correlated. Overexpressed circHIPK3 promoted cell viability, proliferation, migration and invasion, but inhibited apoptosis. Moreover, overexpressed circHIPK3 promoted the expressions of EMT-related genes and antiapoptotic genes, but inhibited proapoptotic gene expressions. Overexpressed circHIPK3 promoted tumor growth and Ki-67 levels, inhibited apoptosis in vivo. The above mentioned effects of circHIPK3 were reversed by miR-326 in vitro or in vivo. Conclusion circHIPK3 promoted proliferation, migration and invasion of BCa cells through regulating miR-326.
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Affiliation(s)
- Liqiang Qi
- Department of Breast Surgical Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Bo Sun
- The 2nd Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Beibei Yang
- The 2nd Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Su Lu
- The 2nd Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
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Ling L, Yuan X, Liu X, Pei W, Li R. A novel peptide promotes human trophoblast proliferation and migration through PI3K/Akt/mTOR signaling pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:981. [PMID: 34277781 PMCID: PMC8267276 DOI: 10.21037/atm-21-2574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/16/2021] [Indexed: 12/20/2022]
Abstract
Background Preeclampsia (PE) is a complex pregnancy-related disease that endangers the safety of maternal and fetal. The purpose of this study is to reveal the pathogenesis of preeclampsia and discover new predictors from the perspective of peptidomics. The umbilical cord blood of PE and control group was analyzed by peptidomics. A peptide named Regulation of Proliferation Process in Preeclampsia (ROPPIP) was screened out to explore its role in the proliferation, migration and apoptosis of trophoblast cells in preeclampsia. Methods We compared and analyzed the umbilical cord blood of patients with PE and normal pregnant women using liquid chromatography-tandem mass spectrometry (LC-MS). hTR-8/Svneo cells cultured in vitro were divided into ROPPIP group and a disordered peptide group as control. Cell Counting Kit-8 (CCK-8) assay, flow cytometry, Transwell chamber assays and western blot analysis were performed to detect cell proliferation, invasion, migration and apoptosis, in addition to the expression of Matrix metalloproteinase-2 (MMP2), nuclear associated antigen Ki67, B-cell lymphoma-2 (Bcl2), Caspase 3, and β-actin protein. Results We identified 133 differential peptides. Of these, 51 were up-regulated while 82 were down-regulated. the polypeptide SFGVRMATASPTDGNV with low differential expression in the serum of PE patients was selected for the study, we named the polypeptide as Regulation of Proliferation Process in PE (ROPPIP). The experiment shows that ROPPIP can up-regulate the expression levels of MMP2, Ki67, and Bcl2 in HTR-8/Svneo cells, down-regulate the expression of caspase-3, promote the proliferation and migration of HTR-8/Svneo cells and inhibit the apoptosis induced by cisplatin, the activation of the phosphatidylinositol-3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) signaling pathway may be associated with the function of ROPPIP. Conclusions ROPPIP promotes HTR-8/Svneo cells migration and proliferation, and inhibits apoptosis, by regulating the activation of the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Li Ling
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - Xiao Yuan
- Department of Ultrasound, Wuwei People's Hospital, Wuhu, China
| | - Xia Liu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - Wenjun Pei
- Anhui Province Key Laboratory of Biological Macro-Molecules Research, Wannan Medical College, Wuhu, China
| | - Ranran Li
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Wannan Medical College, Wuhu, China
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Yang Q, Li F, He AT, Yang BB. Circular RNAs: Expression, localization, and therapeutic potentials. Mol Ther 2021; 29:1683-1702. [PMID: 33484969 PMCID: PMC8116570 DOI: 10.1016/j.ymthe.2021.01.018] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/15/2020] [Accepted: 01/13/2021] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are RNAs with a unique circular structure that is generated from back-splicing processes. These circular molecules were discovered more than 40 years ago but failed to raise scientific interest until lately. Increasing studies have found that these circular RNAs might not just be byproducts of the splicing process but possess important regulatory functions through different cellular events. Most circular RNAs are currently being studied in the field of cancer, and many of them have been confirmed to be involved in the process of tumorigenesis. However, many circular RNAs are implicated in the developmental stages of diseases other than cancer. In this review, we focus on discussing the role of circular RNAs in non-cancer diseases, especially in cardiovascular diseases. Following the summary of the life cycle of circRNAs, we provide input on studying circRNA-protein interactions based on our experience, which modulate protein translocation. Furthermore, we outline the potential of circRNAs to be potent biomarkers, effective therapeutic targets, and potential treatments in cardiovascular diseases as well as other non-cancer fields.
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Affiliation(s)
- Qiwei Yang
- Sunnybrook Research Institute, Toronto, ON, Canada; Medical Research Center, Second Hospital of Jilin University, Changchun, China; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Feiya Li
- Sunnybrook Research Institute, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Alina T He
- Sunnybrook Research Institute, Toronto, ON, Canada
| | - Burton B Yang
- Sunnybrook Research Institute, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M4N 3M5, Canada.
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Chen A, Yu R, Jiang S, Xia Y, Chen Y. Recent Advances of MicroRNAs, Long Non-coding RNAs, and Circular RNAs in Preeclampsia. Front Physiol 2021; 12:659638. [PMID: 33995125 PMCID: PMC8121253 DOI: 10.3389/fphys.2021.659638] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/12/2021] [Indexed: 12/26/2022] Open
Abstract
Preeclampsia is a clinical syndrome characterized by multiple-organ dysfunction, such as maternal hypertension and proteinuria, after 20 weeks of gestation. It is a common cause of fetal growth restriction, fetal malformation, and maternal death. At present, termination of pregnancy is the only way to prevent the development of the disease. Non-coding RNAs, including microRNAs, long non-coding RNAs, and circular RNAs, are involved in important pathological and physiological functions in life cycle activities including ontogeny, reproduction, apoptosis, and cell reprogramming, and are closely associated with human diseases. Accumulating evidence suggests that non-coding RNAs are involved in the pathogenesis of preeclampsia through regulation of various physiological functions. In this review, we discuss the current evidence of the pathogenesis of preeclampsia, introduce the types and biological functions of non-coding RNA, and summarize the roles of non-coding RNA in the pathophysiological development of preeclampsia from the perspectives of oxidative stress, hypoxia, angiogenesis, decidualization, trophoblast invasion and proliferation, immune regulation, and inflammation. Finally, we briefly discuss the potential clinical application and future prospects of non-coding RNA as a biomarker for the diagnosis of preeclampsia.
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Affiliation(s)
- Ailing Chen
- Translational Medicine Laboratory, Research Institute for Reproductive Health and Genetic Diseases, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Renqiang Yu
- Department of Neonatology, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Shiwen Jiang
- Research Institute for Reproductive Health and Genetic Diseases, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China
| | - Ying Chen
- Translational Medicine Laboratory, Research Institute for Reproductive Health and Genetic Diseases, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
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Ping Z, Ai L, Shen H, Zhang X, Jiang H, Song Y. Identification and comparison of circular RNAs in preeclampsia. PeerJ 2021; 9:e11299. [PMID: 33976984 PMCID: PMC8063878 DOI: 10.7717/peerj.11299] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 03/29/2021] [Indexed: 12/24/2022] Open
Abstract
Background Preeclampsia (PE) is a pregnancy-specific syndrome, belongs to the gestational hypertension diseases category and is considered among the causes of maternal and perinatal mortality and morbidity. However, the pathogenesis of PE is still vague. Methods In the present study, the circular RNA (circRNA) expression patterns of normal pregnant women and PE patients were investigated using whole RNA sequencing. Results A total of 151 differential expressed circRNAs were identified including 121 upregulated and 30 downregulated ones. Functional and pathway enrichment analysis was conducted on the differentially expressed circRNAs using Gene Ontology and KEGG databases. The results of this analysis indicated that several crucial biological processes and pathways were enriched in PE patients. circRNA–microRNA (miRNA) interaction analysis indicated that the reported differentially expresse circRNAs may be associated with some regulatory functions through miRNAs in PE patients. Two ceRNAs networks were constructed according to the targeting relationship between circRNAs/miRNAs and miRNAs/mRNAs. One sub-network contained one upregulated circRNA, four downregulated miRNAs and five upregulated mRNAs, and another sub-network contained 10 downregulated circRNAs, 21 upregulated miRNAs and 15 downregulated mRNAs. Conclusion CircRNA expression patterns have been investigated and this analysis revealed their potential regulatory mechanisms in PE patients. We constructed the ceRNAs (competing endogenous RNA) to reveal the potential molecular roles of dysregulated circRNAs in the PE patients using RNA sequencing data. circRNA_13301 was the only one upregulated circRNA in ceRNA being targeted by four miRNAs.
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Affiliation(s)
- Zepeng Ping
- Department of Obstetrics, Maternity and Child Health Care Affiliated Hospital, Jiaxing University, Jiaxing, China
| | - Ling Ai
- Department of Obstetrics, Maternity and Child Health Care Affiliated Hospital, Jiaxing University, Jiaxing, China
| | - Huaxiang Shen
- Department of Obstetrics, Maternity and Child Health Care Affiliated Hospital, Jiaxing University, Jiaxing, China
| | - Xing Zhang
- School of Biology & Basic Medical Science, Soochow University, Suzhou, China
| | - Huling Jiang
- Department of Obstetrics, Maternity and Child Health Care Affiliated Hospital, Jiaxing University, Jiaxing, China
| | - Ye Song
- Department of Obstetrics, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
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Circ_0015382 is associated with preeclampsia and regulates biological behaviors of trophoblast cells through miR-149-5p/TFPI2 axis. Placenta 2021; 108:73-80. [PMID: 33819864 DOI: 10.1016/j.placenta.2021.03.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 01/21/2021] [Accepted: 03/08/2021] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Circ_0015382 expression was found to be up-regulated in preeclampsia (PE) placenta tissues, while the role and molecular mechanisms of circ_0015382 in PE remain unclear. METHODS The expression of circ_0015382, microRNA (miR)-149-5p, and tissue factor pathway inhibitor 2 (TFPI2) was measured using quantitative real-time polymerase chain reaction and Western blot. Cell proliferation, migration, invasion, apoptosis, and cell cycle, were detected using cell counting kit-8, transwell, and flow cytometry assays, respectively. The direct interaction between miR-149-5p and circ_0015382 or TFPI2 was analyzed using the dual-luciferase reporter assay. RESULTS Circ_0015382 was highly expressed in placental tissues of PE. Overexpression of circ_0015382 suppressed trophoblast cell proliferation, migration, invasion and epithelial-mesenchymal transition (EMT), but induced apoptosis and cell cycle progression, while circ_0015382 knockdown showed inverse effects. MiR-149-5p was confirmed to be a target of circ_0015382, and silencing miR-149-5p reversed the regulatory effects of circ_0015382 knockdown on trophoblast cell biological behaviors. MiR-149-5P was expressed at lower levels in placental tissues of PE, while the expression of its target TFPI2 was higher. Importantly, circ_0015382 could regulate TFPI2 expression via miR-149-5p. Additionally, miR-149-5p was shown to promote trophoblast cell growth, migration, invasion and EMT through TFPI2. DISCUSSION Circ_0015382 was associated with the onset and development of PE through suppressing trophoblast cell growth, migration, invasion and EMT via miR-149-5p/TFPI2 axis, revealing a new insight into the pathogenesis of PE and a potential therapeutic target for PE treatment.
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Jia S, Zhang Q, Wang Y, Wang Y, Liu D, He Y, Wei X, Gu H, Ma W, Luo W, Yuan Z. PIWI-interacting RNA sequencing profiles in maternal plasma-derived exosomes reveal novel non-invasive prenatal biomarkers for the early diagnosis of nonsyndromic cleft lip and palate. EBioMedicine 2021; 65:103253. [PMID: 33639402 PMCID: PMC7921467 DOI: 10.1016/j.ebiom.2021.103253] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/10/2021] [Accepted: 02/04/2021] [Indexed: 12/11/2022] Open
Abstract
Background Congenital malformations are common birth defects with high neonatal morbidity and mortality. It is essential to find simpler and more efficient biomarkers for early prenatal diagnosis. Therefore, we investigated PIWI-interacting RNAs (piRNAs) as potential prenatal biomarkers in plasma-derived exosomes from pregnant women carrying foetuses with congenital malformations. Methods Small RNA sequencing was used to screen piRNA biomarkers in plasma-derived exosomes of five pregnant women carrying foetuses with nonsyndromic cleft lip and palate (nsCLP) and five women carrying normal foetuses. Differentially expressed piRNAs were verified in 270 pregnant women, including 111 paired women carrying foetuses with congenital malformations and normal foetuses (at 24 gestational weeks), 10 paired women carrying foetuses with nsCLP and normal foetuses (at 15–19 gestational weeks), and 28 women at different stages of normal pregnancy. piRNA biomarkers were also verified in placentas, umbilical cords, fetal medial calf muscles, and lip tissues of nsCLP and normal foetuses. Findings We identified a biomarker panel of three pregnancy-associated exosomal piRNAs (hsa-piR-009228, hsa-piR-016659, and hsa-piR-020496) could distinguish nsCLP foetuses from normal foetuses. These three piRNAs had better diagnostic accuracy for nsCLP at the early gestational stage, at which time typical malformations were not detected upon prenatal ultrasound screening, and had diagnostic value for neural tube defects (NTDs) and congenital heart defects (CHDs). Interpretation Our work revealed the potential clinical applications of piRNAs for predicting nsCLP, NTDs, and CHDs. Funding National Key Research and Development Program, National Natural Science Foundation of China, and LiaoNing Revitalization Talents Program .
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Affiliation(s)
- Shanshan Jia
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Qiang Zhang
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China; Department of Pulmonary and Critical Care Medicine, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Yu Wang
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China; Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Yanfu Wang
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Dan Liu
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Yiwen He
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Xiaowei Wei
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Hui Gu
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Wei Ma
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Wenting Luo
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR China
| | - Zhengwei Yuan
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang, PR 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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CircSFXN1 regulates the behaviour of trophoblasts and likely mediates preeclampsia. Placenta 2020; 101:115-123. [DOI: 10.1016/j.placenta.2020.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/22/2020] [Accepted: 09/11/2020] [Indexed: 12/11/2022]
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Zhang Y, Yang H, Zhang Y, Shi J, Chen R. circCRAMP1L is a novel biomarker of preeclampsia risk and may play a role in preeclampsia pathogenesis via regulation of the MSP/RON axis in trophoblasts. BMC Pregnancy Childbirth 2020; 20:652. [PMID: 33109096 PMCID: PMC7590488 DOI: 10.1186/s12884-020-03345-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 10/16/2020] [Indexed: 12/13/2022] Open
Abstract
Background Preeclampsia is a severe disease in pregnant women, which is primarily managed by early screening and prevention. Circular RNAs (circRNAs) have increasingly been shown to be important biological regulators involved in numerous diseases. Further, increasing evidence has demonstrated that circRNAs can be used as diagnostic biomarkers. This study was conducted to evaluate the potential of circCRAMP1L, previously identified to be downregulated in preeclampsia, as a novel biomarker for predicting the development of preeclampsia. Methods We measured the expression of circCRAMP1L, which is reportedly relevant to trophoblast physiology, in plasma samples from 64 patients with preeclampsia and 64 age-, gestational age-, and body mass index-matched healthy pregnant women by qRT-PCR. MTT proliferation and transwell invasion assays revealed the biological role of circCRAMP1L in preeclampsia pathogenesis. RNA immunoprecipitation and dual-luciferase reporter assays clarified the mechanism underlying the biological function of circCRAMP1L in TEV-1 cells. Results circCRAMP1L circulating levels were significantly lower in patients with preeclampsia (2.66 ± 0.82, △Ct value) than in healthy pregnant women (3.95 ± 0.67, △Ct value, p < 0.001). The area under the receiver operating characteristic curve for circCRAMP1L was 0.813. Univariate and multivariate analyses identified circCRAMP1L as an independent predictor of preeclampsia. Furthermore, when circCRAMP1L was utilised in combination with its target protein macrophage stimulating protein (MSP), the predictive performance increased, with an area under the receiver operating characteristic curve of 0.928 (95% CI 0.882–0.974), 80.0% sensitivity, and 80.0% specificity. The in vitro results indicated that circCRAMP1L regulates cell proliferation, and invasion via MSP and RON proteins. We investigated the molecular mechanisms of these effects. In vitro, relative to the control group, circCRAMP1L overexpression significantly enhanced cell proliferation; furthermore, trophoblast cell invasion increased proportionally with circCRAMP1L expression. RNA immunoprecipitation and luciferase reporter gene illustrated that circCRAMP1L participated in regulation of trophoblast cell by regulating MSP. Conclusion Reduced plasma levels of circCRAMP1L may be associated with an increased risk of preeclampsia, and circCRAMP1L may be a novel biomarker of preeclampsia risk. Supplementary information Supplementary information accompanies this paper at 10.1186/s12884-020-03345-5.
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Affiliation(s)
- Yonggang Zhang
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, Shenzhen, 518110, Guangdong, China
| | - Hongling Yang
- Department of Clinical Laboratory, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, 9, Jinsui Road, Guangzhou, 510623, China.
| | - Yipeng Zhang
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, Shenzhen, 518110, Guangdong, China
| | - Junzhu Shi
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, Shenzhen, 518110, Guangdong, China
| | - Ronggui Chen
- Department of Clinical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, Shenzhen, 518110, Guangdong, China
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Liu L, Li F, Wen Z, Li T, Lv M, Zhao X, Zhang W, Liu J, Wang L, Ma X. Preliminary investigation of the function of hsa_circ_0049356 in nonobstructive azoospermia patients. Andrologia 2020; 52:e13814. [PMID: 32894622 DOI: 10.1111/and.13814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 01/13/2023] Open
Abstract
Nonobstructive azoospermia (NOA), which is considered the most severe form of male infertility, has placed a heavy burden on families and society. As vital regulators of transcriptional and post-transcriptional levels, Noncoding RNAs (ncRNAs) are closely related to all the pathophysiological processes involved in infertility in males, especially spermatogenesis. Our study explored the expression levels of circ_0049356 in both the whole blood and seminal plasma samples of idiopathic NOA patients via quantitative real-time PCR. Furthermore, the relative expression of its host gene (CARM1) was also determined using the same methods. In addition, as circRNAs have been demonstrated to regulate gene expression as miRNAs sponge, we predicted a total of five miRNAs and 101 mRNAs as putative downstream targets and constructed a circRNA-miRNA-mRNA network. Based on the predictions, Gene Ontology and KEGG pathway analyses were performed for further bioinformatics analysis to explore the potential function and investigate the circ_0049356-miRNA-mRNA interactions. Our results show target mRNAs that have been predicted to regulate guanyl-nucleotide exchange factor activity to mediate the GTP/GDP exchange, and downstream targets possibly involved in the regulation of the actin cytoskeleton, which play a significant role in cytoskeleton rearrangement of germ cells during spermatogenesis.
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Affiliation(s)
- Lin Liu
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | | | - Zhen Wen
- Lanzhou University, Lanzhou, China
| | - Tao Li
- Lanzhou University, Lanzhou, China
| | - Meng Lv
- Lanzhou University, Lanzhou, China
| | - Xiaodong Zhao
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Wei Zhang
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Jing Liu
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Liyan Wang
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
| | - Xiaoling Ma
- The Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.,Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou, China
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Hu Y, Song Q, Zhao J, Ruan J, He F, Yang X, Yu X. Identification of plasma hsa_circ_0008673 expression as a potential biomarker and tumor regulator of breast cancer. J Clin Lab Anal 2020; 34:e23393. [PMID: 32808350 PMCID: PMC7521290 DOI: 10.1002/jcla.23393] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Cell-free circular RNAs (circRNAs) are stable and abundantly exist in body fluids. In this study, we aimed to investigate plasma cell-free circRNAs as a novel class of biomarkers for the diagnosis of breast cancer (BC). METHODS Differentially expressed circRNAs from 6 normal and 6 BC plasma samples were detected by microarray. Hsa_circ_0008673 was then screened and validated in the plasma of 102 normal and 378 BC samples. A receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value. The correlations between hsa_circ_0008673 expression and demographic characteristics, tumor features, and prognosis were analyzed. The effects of hsa_circ_0008673 on BC cell proliferation and metastasis were also measured. RESULTS Of the top ten up-regulated (hsa_circ_0008673, hsa_circ_0008500, hsa_circ_0005260, hsa_circ_0003423, hsa_circ_0119881, hsa_circ_0000987, hsa_circ_0007386, hsa_circ_0000091, hsa_circ_0016601, and hsa_circ_0008549) and top ten down-regulated (hsa_circ_0000826, hsa_circ_0072697, hsa_circ_0004587, hsa_circ_0000471, hsa_circ_0007786, hsa_circ_0001417, hsa_circ_0005982, hsa_circ_0001566, hsa_circ_0003823, and hsa_circ_0003823) circRNAs from microarray, hsa_circ_0008673 was the most significantly up-regulated circRNA in BC, and represented a good diagnostic value. Hsa_circ_0008673 was remarkably down-regulated after breast mastectomy. Hsa_circ_0008673 expression was associated with larger tumor size, distant metastasis, positive estrogen receptor (ER) status, and positive progesterone receptor (PR) status. Additionally, hsa_circ_0008673 could serve as a prognostic predicator of overall survival (OS) and disease-specific survival (DSS). Cell assays proved that hsa_circ_0008673 knockdown contributed to inhibition of tumor cell proliferation and migration. CONCLUSION Plasma cell-free hsa_circ_0008673 was up-regulated in BC, which was associated with poorer prognosis and promoted tumor proliferation and metastasis. Hsa_circ_0008673 is a promising biomarker for tumor diagnosis and prognostic assessment of BC patients.
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Affiliation(s)
- Youting Hu
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Qi Song
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Jianguo Zhao
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Jian Ruan
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Fan He
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Xia Yang
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Xiaocheng Yu
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
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Huang Z, Yuan C, Gu H, Cheng X, Zhou K, Xu J, Yin X, Xia J. Circular RNA circHIPK3 Promotes Cell Metastasis through miR-637/STAT3 Axis in Osteosarcoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2727060. [PMID: 32775413 PMCID: PMC7397379 DOI: 10.1155/2020/2727060] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/29/2020] [Indexed: 12/23/2022]
Abstract
Recent studies have suggested that circular RNAs play an important role in the progression of various cancers. However, few studies have revealed the great value of circRNAs in the diagnosis and prognosis prediction of osteosarcoma (OS). In this study, we performed experiments with the human OS cell lines and the results showed that the expression of circHIPK3 in OS cell lines was significantly upregulated compared to that in the normal cell line. In addition, the results showed that circHIPK3 could promote the migration, invasion, and growth of OS cells. Furthermore, miR-637 was identified as a target of circHIPK3, while STAT3 was targeted by miR-637. circHIPK3 could promote STAT3 expression via interacting with miR-637 in OS cells. In conclusion, our research uncovered an important role of the circHIPK3/miR-637/STAT3 pathway in the migration and invasion of OS cells and suggested that circHIPK3 may be a prognostic marker and a promising therapeutic target for OS.
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Affiliation(s)
- Zhongyue Huang
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Chunyan Yuan
- Department of Pathology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Huijie Gu
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Xiangyang Cheng
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Kaifeng Zhou
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Jun Xu
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Xiaofan Yin
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Jiangni Xia
- Department of Orthopaedics, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
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Zhu H, Niu X, Li Q, Zhao Y, Chen X, Sun H. Circ_0085296 suppresses trophoblast cell proliferation, invasion, and migration via modulating miR-144/E-cadherin axis. Placenta 2020; 97:18-25. [PMID: 32792057 DOI: 10.1016/j.placenta.2020.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 05/14/2020] [Accepted: 06/01/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) have been revealed to be important regulators in the biological behavior of cells, and aberrant circRNAs may be associated with the etiology of pre-eclampsia (PE). However, the role and underlying molecular mechanisms of circ_0085296 in PE remain unclear. METHODS The expression of circ_0085296, microRNA (miR)-144, and E-cadherin was detected using quantitative real-time polymerase chain reaction and western blot, respectively. Cell proliferation, migration, and invasion were analyzed by cell counting kit-8, colony formation and transwell assay. The interaction between miR-144 and circ_0085296 or E-cadherin was analyzed by the dual-luciferase reporter assay and pull-down assay. RESULTS Circ_0085296 was elevated in PE placental tissues, knockdown of circ_0085296 promoted trophoblast cell proliferation, invasion, and migration, while circ_0085296 up-regulation showed opposite effects. MiR-144 was down-regulated in PE placental tissues, and restoration of miR-144 induced proliferation, invasion, and migration in trophoblast cells. Further mechanistic analysis found miR-144 directly bound to circ_0085296 and E-cadherin, and circ_0085296 functioned as a sponge of miR-144 to regulate E-cadherin expression. Furthermore, miR-144 inhibition or E-cadherin overexpression attenuated the effectsof circ_0085296 on cell processes in trophoblast cells. CONCLUSION Circ_0085296 inhibited trophoblast cell proliferation, invasion, and migration via regulating miR-144/E-cadherin axis, providing a novel insight into the pathogenesis of PE and a new prospective therapeutic target for PE patients.
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Affiliation(s)
- Hailing Zhu
- Department of Pediatric, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Xia Niu
- Department of Pediatric, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Qinghua Li
- Department of Pediatric, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Yuehua Zhao
- Department of Pediatric, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Xue Chen
- Department of Pediatric, The Sunshine Union Hospital, Weifang, Shandong, China
| | - Hesheng Sun
- Department of Pediatric, The Sunshine Union Hospital, Weifang, Shandong, China.
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Pan M, Chen P, Lu J, Liu Z, Jia E, Ge Q. The fragmentation patterns of maternal plasma cell-free DNA and its applications in non-invasive prenatal testing. Prenat Diagn 2020; 40:911-917. [PMID: 32147843 DOI: 10.1002/pd.5680] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 02/10/2020] [Accepted: 02/29/2020] [Indexed: 12/11/2022]
Abstract
The discovery of cell-free DNA (cfDNA) in maternal plasma has opened up new promises for the development of non-invasive prenatal testing (NIPT). Application of cfDNA in NIPT of fetus diseases and abnormalities is restricted by the low amount of fetal DNA molecules in maternal plasma. Fetus-derived cfDNA in maternal plasma are shorter than maternal DNA, thus leveraging the maternal and fetus-derived cfDNA molecules size difference has become a novel and more accurate method for NIPT. However, multiple biological properties such as size distribution of plasma DNA, proportion of fetal-derived DNA and methylation levels in maternal plasma across different gestational ages still remain largely unknown. Further insights into the size distribution and fragmentation pattern of circulating plasma cfDNA will shed light on the origin and fragmentation mechanisms of cfDNA during physiological and pathological processes in prenatal diseases and enhance our ability to take the advantage of plasma cfDNA as a molecular diagnostic tool. In the review, we start by summarizing the research techniques for the determination of the fragmentation profiles of cfDNA in maternal plasma. We then summarize the main progress and findings in size profiles of maternal plasma cfDNA and cffDNA. Finally, we discuss the potential diagnostic applications of plasma cfDNA size profiling.
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Affiliation(s)
- Min Pan
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, China
| | - Pingsheng Chen
- Department of Pathology and Pathophysiology, Medical School, Southeast University, Nanjing, China
| | - Jiafeng Lu
- Center of Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Zhiyu Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Erteng Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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Ding J, Lyu Y, Guo N, Wang Q, Li L, Ni G. Diagnostic value of circular RNAs in female reproductive system diseases: A PRISMA-compliant meta-analysis. Biomed Rep 2020; 12:171-177. [PMID: 32190305 PMCID: PMC7054704 DOI: 10.3892/br.2020.1278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/31/2019] [Indexed: 11/13/2022] Open
Abstract
Circular RNAs (circRNAs) are novel non-coding RNAs that have been reported to be involved in the progression of numerous diseases. However, the clinical diagnostic value of circRNAs in female reproductive system diseases remains unknown. The present study is a systemic review and meta-analysis of the available literature on circRNAs as novel biomarkers for female reproductive system diseases. Relevant studies were systematically searched using the PubMed, Embase, Web of Science and Cochrane Library databases. The data obtained from the included studies were analyzed by RevMan5.3 and STATA 14.2. A total of six studies involving 613 individuals across three types of disease examined the diagnostic capabilities of circRNAs. Within these publications, the pooled sensitivity of circRNAs was 0.70 (95% CI, 0.64-0.76), and the pooled specificity was 0.70 (95% CI, 0.64-0.75). The pooled positive likelihood ratio and negative likelihood ratio were 2.33 and 0.42, respectively. The diagnostic score was 1.70 and the pooled diagnostic odds ratio was 5.48. The area under the summary receiver operator characteristic curve was 0.76 (95% CI, 0.72-0.79), indicating that circRNAs exhibited a moderate diagnostic value for female reproductive system diseases and may function as potential diagnostic biomarkers. However, further studies are required to verify the clinical applications of circRNAs.
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Affiliation(s)
- Jin Ding
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Yuanyuan Lyu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Nan Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Qingwei Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Lina Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
| | - Guantai Ni
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui 241001, P.R. China
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Montagnana M, Benati M, Tagetti A, Raffaelli R, Danese E, Zatti N, Marcon D, Branz L, Micheli C, Franchi M, Fava C, Lippi G. Evaluation of circ_100219 and miR-135b in serum and exosomes of healthy pregnant women. J Matern Fetal Neonatal Med 2019; 34:3645-3650. [PMID: 31722587 DOI: 10.1080/14767058.2019.1689556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Aim: Circular RNAs (circRNAs) are recently discovered and highly stable noncoding RNAs acting as gene regulators. These circRNAs can function as miRNA sponges, thereby upregulating or downregulating miRNA target gene expression. MiR-135b is expressed in placenta tissue and can be found in maternal circulation, thus playing a functional role in pregnancy. This miR is a target of circ_100219. This preliminary study was aimed to evaluate circ_100219 and miR-135b expression in pregnant and nonpregnant women, and explore the relationship between circ_100219 and miR-135b in serum and exosomes.Methods: Total RNA was isolated from serum and exosomes of 30 healthy pregnant women (32.9 ± 5.1 years) between 23-27 gestational weeks and 30 healthy nonpregnant women (31.3 ± 5.4 years). Quantitative real-time polymerase chain reaction (qRT-PCR) was used to quantify circ_100219 and miR-135b expression. GAPDH and U6 snRNA were chosen as reference for normalizing expression levels. The differences between pregnant and nonpregnant women were assessed with Mann-Whitney test and correlation with Spearman's test.Results: The circ_100219 expression levels were significantly lower both in serum and exosomes of second trimester pregnant women compared to the control group (p < .0001), whilst Mir-135b expression levels were significantly higher in pregnant than in the control group (p < .0001). A significant negative correlation was observed between circ_100219 and miR-135b expression levels in both serum and exosomes (r = -0.34 and p = .009; r = -0.31 and p = .01, respectively). The circ_100219:miR-135b ratio was significantly increased in nonpregnant women compared to the pregnant group, in both serum and exosomes (49.0 versus 1.1, p < .0001 and 2042.4 versus 28.5, p < .0001, respectively).Conclusions: Our results confirm a role for circ_100219 and miR-135b in physiological pregnancy. Further studies are needed to investigate the circ_100219:miR-135b ratio in pregnancy complications.
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Affiliation(s)
- Martina Montagnana
- Department Neurosciences, Biomedicine and Movement Sciences, Clinical Biochemistry Section, University of Verona, Verona, Italy
| | - Marco Benati
- Department Neurosciences, Biomedicine and Movement Sciences, Clinical Biochemistry Section, University of Verona, Verona, Italy
| | - Angela Tagetti
- Department of Medicine, Medicine C Section, University of Verona, Verona, Italy
| | - Ricciarda Raffaelli
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, Obstetrics and Gynecology Section, University of Verona, Verona, Italy
| | - Elisa Danese
- Department Neurosciences, Biomedicine and Movement Sciences, Clinical Biochemistry Section, University of Verona, Verona, Italy
| | - Nicoletta Zatti
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, Obstetrics and Gynecology Section, University of Verona, Verona, Italy
| | - Denise Marcon
- Department of Medicine, Medicine C Section, University of Verona, Verona, Italy
| | - Lorella Branz
- Department of Medicine, Medicine C Section, University of Verona, Verona, Italy
| | - Chiara Micheli
- Department of Medicine, Medicine C Section, University of Verona, Verona, Italy
| | - Massimo Franchi
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, Obstetrics and Gynecology Section, University of Verona, Verona, Italy
| | - Cristiano Fava
- Department of Medicine, Medicine C Section, University of Verona, Verona, Italy
| | - Giuseppe Lippi
- Department Neurosciences, Biomedicine and Movement Sciences, Clinical Biochemistry Section, University of Verona, Verona, Italy
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Wang Q, Liu H, Liu Z, Yang L, Zhou J, Cao X, Sun H. Circ-SLC7A5, a potential prognostic circulating biomarker for detection of ESCC. Cancer Genet 2019; 240:33-39. [PMID: 31726270 DOI: 10.1016/j.cancergen.2019.11.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/13/2019] [Accepted: 11/02/2019] [Indexed: 02/07/2023]
Abstract
Circular RNAs (circRNAs), resulting from the non-canonical splicing of linear pre-mRNAs, have permanently altered our perspectives toward cancer recently, especially in carcinogenesis and cancer progression. However, the roles of circRNAs in esophageal squamous cell carcinoma (ESCC) remain largely unknown. In the current study, circRNAs expression profiles are screened in ESCC, using plasma samples from 10 ESCC patients, including different TNM stages and 5 normal controls. Characteristics of circRNAs including length, types, and the possibility of binding to proteins are analyzed. Candidate tumor-related circRNAs are then quantitated in ESCC tissues, plasmas and cell lines. ESCC tissues can secret circRNAs into plasma and patients with high plasma circ-SLC7A5 are associated with high TNM stage, tending to have shorter overall survival than those with high levels. In addition, the biological characteristics of circ-SLC7A5 including location, miRNAs binding, m6A modification were analyzed. Our study reveals a novel prognosis biomarker of circ-SLC7A5, providing a preliminary landscape of circRNA expression for detection of ESCC.
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Affiliation(s)
- Qian Wang
- Department of Oncology Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Han Liu
- Department of Oncology Surgery, Taikang Xianlin Drum Tower Hospital, Nanjing University, Nanjing, China
| | - Zihao Liu
- Department of Oncology, Suqian Hospial Affiliated to Xuzhou Medical University, Suqian, China
| | - Lili Yang
- Department of Oncology Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jian Zhou
- Department of Oncology Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiufeng Cao
- Department of Oncology Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Department of Oncology Surgery, Taikang Xianlin Drum Tower Hospital, Nanjing University, Nanjing, China.
| | - Handong Sun
- Department of Oncology Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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The expression profile of circRNA and its potential regulatory targets in the placentas of severe pre-eclampsia. Taiwan J Obstet Gynecol 2019; 58:769-777. [DOI: 10.1016/j.tjog.2019.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2019] [Indexed: 12/22/2022] Open
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Down-regulated circPAPPA suppresses the proliferation and invasion of trophoblast cells via the miR-384/STAT3 pathway. Biosci Rep 2019; 39:BSR20191965. [PMID: 31427481 PMCID: PMC6732364 DOI: 10.1042/bsr20191965] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/12/2019] [Accepted: 08/16/2019] [Indexed: 01/05/2023] Open
Abstract
Preeclampsia (PE) is the main cause of maternal death in primipara, and commonly results in severe maternal and neonatal complications such as multiple organ dysfunction syndrome. However, the exact pathogenesis of this disease remains unclear. Circular RNAs (circRNAs) are noncoding RNAs that have been shown to be extensively involved in numerous physiological processes, but there is limited knowledge of their functions and mechanisms in PE. In the present study, we found the expression of a circRNA, hsa_circ_0088227 (circRNA of pregnancy-associated plasma protein A, circPAPPA), was down-regulated in both placenta and plasma samples from subjects with PE. Knockdown of circPAPPA led to decreased proliferation and invasion in HTR8-S/Vneo trophoblast cells. miR-384 was identified as a direct target of circPAPPA, and the gene encoding signal transducer and activator of transcription 3 (STAT3) was targeted by miR-384. We found that miR-384 was unregulated in PE, and overexpression of miR-384 could inhibit cell proliferation and invasion. In addition, we showed that the expression of STAT3 was decreased with knockdown of circPAPPA or the overexpression of miR-384 in trophoblast cells, but this decrease was partially reversed when co-transfection was performed with mimics of miR-384 inhibitor and si-circPAPPA. Together, these results suggest that down-regulation of circPAPPA facilitates the onset and development of PE by suppressing trophoblast cells, with involvement of the miR-384/STAT3 signaling pathway. Our study significantly increases the understanding of the occurrence and development of PE, and also provides a molecular target for the treatment of this disorder.
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Shafabakhsh R, Mirhosseini N, Chaichian S, Moazzami B, Mahdizadeh Z, Asemi Z. Could circRNA be a new biomarker for pre-eclampsia? Mol Reprod Dev 2019; 86:1773-1780. [PMID: 31475762 DOI: 10.1002/mrd.23262] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/22/2019] [Indexed: 01/04/2023]
Abstract
Pre-eclampsia is a devastating complication of pregnancy which is characterized by hypertension and proteinuria in pregnant women. Pre-eclampsia is important as it is the leading cause of death. Moreover, untreated pre-eclampsia might lead to other lethal complications, for both fetus and mother. Pre-eclampsia can also affect the quality of life in affected women. Despite a large number of risk factors for pre-eclampsia, these risk factors are able to detect just 30% of women who are susceptible to pre-eclampsia. Heterogeneous manifestations of pre-eclampsia necessitate the discovery of potential biomarkers required for its early detection. Circular RNAs (circRNAs) are a type of RNA which are more abundant, specific, and highly organized compared with other types of RNA. Accordingly, circRNAs have been suggested as one of the potential biomarkers for different diseases. Recently, researchers have shown interest in the effects of circRNAs in pre-eclampsia, although the current evidence is limited. The majority of obstetricians are probably not aware of circRNAs as a useful biomarker. Here, we aimed to summarize recent supporting evidence and assess the mechanisms by which circRNAs are involved in pre-eclampsia.
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Affiliation(s)
- Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Naghmeh Mirhosseini
- School of Public Health, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Shala Chaichian
- Minimally Invasive Techniques Research Center in Women, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran.,Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Bahram Moazzami
- Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Mahdizadeh
- Firoozabadi Clinical Research Development Unit, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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Jiang F, Shen X. Current prevalence status of gastric cancer and recent studies on the roles of circular RNAs and methods used to investigate circular RNAs. Cell Mol Biol Lett 2019; 24:53. [PMID: 31428168 PMCID: PMC6698018 DOI: 10.1186/s11658-019-0178-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/31/2019] [Indexed: 12/29/2022] Open
Abstract
Gastric cancer is a malignant tumor with the fifth incidence and third mortality worldwide. There were 951,000 new cases and about 723,000 patients died of it in 2012. Undoubtedly, gastric cancer has been affecting people's living standards, and is already a major public health problem in China with its population growth and ageing. Even though the detection methods and medical standards have improved, the five-year survival rate of people is still very low. While circular RNA (circRNA) is increasingly attracting attention from researchers, at the same time, its mystery has gradually been uncovered. Many studies have shown that circRNA can act as molecular sponge of miRNA to regulate gene expression and has an obviously different expression profile between cancerous and normal groups, which arouse people's curiosity and provide new opportunities for early detection of gastric cancer to improve the quality of life of patients. This study reviews current prevalence of gastric cancer in the word and China, as well as the characteristics and functions of circRNA and common laboratory detection methods involving circRNA in gastric cancer.
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Affiliation(s)
- Fei Jiang
- Key Laboratory of Environmental Medical Engineering and Education Ministry, Nanjing Public Health College, Southeast University, Nanjing, 210000 China
- Department of Preventive Medicine, Nanjing Public Health College, Southeast University, Nanjing, 210000 China
| | - Xiaobing Shen
- Key Laboratory of Environmental Medical Engineering and Education Ministry, Nanjing Public Health College, Southeast University, Nanjing, 210000 China
- Department of Preventive Medicine, Nanjing Public Health College, Southeast University, Nanjing, 210000 China
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Luo Q, Zhang L, Li X, Fu B, Guo Y, Huang Z, Li J. Identification of circular RNAs hsa_circ_0044235 and hsa_circ_0068367 as novel biomarkers for systemic lupus erythematosus. Int J Mol Med 2019; 44:1462-1472. [PMID: 31432107 PMCID: PMC6713423 DOI: 10.3892/ijmm.2019.4302] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/16/2019] [Indexed: 12/28/2022] Open
Abstract
Circular RNAs (circRNAs) have emerged as novel biomarkers for disease diagnosis. However, the expression profiles and clinical significance of circRNAs in peripheral blood mononuclear cells (PBMCs) from systemic lupus erythematosus (SLE) remain unclear. In the present study, the expression profile of circRNAs in PBMCs from patients with SLE and healthy controls (HCs) was detected by using microarray analysis and verified by reverse transcription‑quantitative polymerase chain reaction. A total of 1,603 circRNAs were identified to be significantly aberrantly expressed in PBMCs from patients with SLE. Validation assays in 30 SLE patients and 20 HCs demonstrated that the levels of hsa_circ_0044235 and hsa_circ_0068367 were significantly decreased in the patients with SLE. Receiver operating characteristic curve analysis suggested that hsa_circ_0044235 and hsa_circ_0068367 were significant for SLE diagnosis. Furthermore, the diagnostic potential of hsa_circ_0044235 and hsa_circ_0068367 for SLE was validated in an independent validation set with 45 patients with SLE, 38 HCs and 30 patients with rheumatoid arthritis. In addition, the level of hsa_circ_0044235 in the PBMCs from patients with SLE were identified to be significantly increased in new‑onset SLE patients and in patients who were determined to be positive for anti‑double‑stranded DNA and anti‑ribosomal protein P antibodies. Additionally, the level of a microRNA (miRNA) target of hsa_circ_0044235, hsa‑miRNA‑892a, was identified to be significantly increased in the PBMCs from patients with SLE. The present study suggested that the dysregulation of circRNAs may serve a role in SLE pathogenesis, and that the levels of hsa_circ_0044235 and hsa_circ_0068367 in PBMC have potential as biomarkers for SLE diagnosis.
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Affiliation(s)
- Qing Luo
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Lu Zhang
- Medical College of Nanchang University; 3Department of Rheumatology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xue Li
- Medical College of Nanchang University; 3Department of Rheumatology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Biqi Fu
- Department of Rheumatology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yang Guo
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zikun Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Junming Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Liu Z, Zhang T, Jiang H, Xu W, Zhang J. Conventional MR-based Preoperative Nomograms for Prediction of IDH/1p19q Subtype in Low-Grade Glioma. Acad Radiol 2019; 26:1062-1070. [PMID: 30393056 DOI: 10.1016/j.acra.2018.09.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 09/16/2018] [Accepted: 09/24/2018] [Indexed: 12/29/2022]
Abstract
RATIONALE AND OBJECTIVES To develop nomogram models incorporating MR and clinical features for preoperative prediction of isocitrate dehydrogenase (IDH)/1p19q subtype in patients with lower-grade gliomas (LGG). MATERIALS AND METHODS We classified LGG (149 patients) into three categories: (1) IDH mutation and 1p/19q codeletion, (2) IDH mutation and no 1p/19q codeletion, and (3) wild-type IDH. The correlation between clinical and MR features and IDH/1p19q subtype was analyzed. RESULTS (1) Multivariate analysis showed that hemorrhage (yes vs no odds ratio [OR]: 12.775), enhancing margin (poorly vs well defined OR: 17.87), and SVZ (SVZ+ vs SVZ- OR: 0.304 were associated with a higher incidence of IDHmut-codel status (All p < 0.05). (2) Multivariate analysis showed that age (≥40 years vs <40 years OR: 0.139), hemorrhage (yes vs no OR: 0.095), enhancing margin (poorly vs well defined OR: 0.275), volume (>60 cm3 vs ≤60 cm3 OR: 5.111), and the shortest distance from the tumor centroid to the edge of the lateral ventricles (CS) (>30 mm vs ≤30 mm OR: 3.766) were associated with a higher incidence of IDHmut-noncodel status. (3) Multivariate analysis showed age (≥40 years vs <40 years OR: 17.311), tumor site (other vs frontal lobe OR: 4.696), volume (>60 cm3 vs ≤60 cm3 OR: 0.188), CS (>30 mm vs ≤30 mm OR: 0.285), necrosis (yes vs no OR: 0.193), and proportion CE tumor (>5% vs ≤5% OR: 5.253) were associated with a higher incidence of IDHwt status. Three nomogram models showed good discrimination (all area under the curve > 0.8) and calibration. CONCLUSION Clinical and MR features may therefore be used to facilitate the preoperative prediction of LGG IDH/1p19q subtype.
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Bai Y, Rao H, Chen W, Luo X, Tong C, Qi H. Profiles of circular RNAs in human placenta and their potential roles related to preeclampsia. Biol Reprod 2019; 98:705-712. [PMID: 29506122 DOI: 10.1093/biolre/ioy034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 02/27/2018] [Indexed: 12/26/2022] Open
Abstract
To identify the profiles of circular RNAs (circRNAs) in human placental tissues and to explore the potential roles of dysregulated circRNAs in the pathological genesis of preeclampsia, expression profiles of circRNAs in human placentas were performed in this study. Utilizing high-throughput technology, based on fold changes and P values, 300 circRNAs that are differentially expressed between preeclampsia and normal placental tissues were identified. Among them, hg38_circ_0014736 and hsa_circ_0015382 were validated as significantly upregulated by real-time quantitative PCR with divergent primers. At the same time, hsa_circ_0007121 was significantly downregulated. GO analysis revealed that the three altered circRNAs had a relationship with transcription regulation, proliferation, protein binding, and response to hypoxia. KEGG analysis yielded that apoptosis, Wnt signaling, and HIF-1 pathways were significantly enriched. Interestingly, hsa_circ_0007121 was found to be expressed differently in plasma between preeclampsia and normal pregnancy and this difference could be detected before 20 gestational weeks. Besides, addition receiver operating characteristic (ROC) curve analysis showed that the area under the ROC curve of hsa_circ_0007121 reached 0.72 ([0.59-0.85], P = 0.004) with a sensitivity of 0.77 and specificity of 0.70. Collectively, this study demonstrates the existence of dysregulated circRNAs in the placenta of preeclampsia patients and annotates their potential roles in the pathogenesis of the disease. Encouragingly, hsa_circ_0007121 was found to be a potential noninvasive biomarker for the prediction of preeclampsia.
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Affiliation(s)
- Yuxiang Bai
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Haiying Rao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Wei Chen
- Department of Emergency and Intensive Care Units, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Xin Luo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Chao Tong
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hongbo Qi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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Deng N, Lei D, Huang J, Yang Z, Fan C, Wang S. Circular RNA expression profiling identifies hsa_circ_0011460 as a novel molecule in severe preeclampsia. Pregnancy Hypertens 2019; 17:216-225. [DOI: 10.1016/j.preghy.2019.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 10/26/2022]
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