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Xue J, Zhang Z, Li X, Ren Q, Wang Q. Long non-coding RNA TTN-AS1 promotes breast cancer cell migration and invasion via sponging miR-140-5p. Oncol Lett 2019; 19:1255-1260. [PMID: 31966055 PMCID: PMC6956388 DOI: 10.3892/ol.2019.11222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/03/2019] [Indexed: 12/23/2022] Open
Abstract
Breast cancer (BC) is one of the most common fatal cancers. Recent studies have identified the vital role of long non-coding RNAs (lncRNAs) in the development and progression of BC. In this investigation, lncRNA TTN-AS1 was studied to identify its function in the metastasis of BC. TTN-AS1 expression of tissues was detected by real-time quantitative polymerase chain reaction (RT-qPCR) in 56 BC patients. Wound healing assay and transwell assay were used to observe the biological behavior changes of BC cells through gain or loss of TTN-AS1. In addition, luciferase assays and RNA immunoprecipitation (RIP) assay were performed to discover the potential targets of TTN-AS1 in BC cells. TTN-AS1 expression level in BC samples was higher than that of adjacent tissue. Besides, the ability of cell migration and invasion of BC cells was inhibited after TTN-AS1 was silenced, while cell migration and cell invasion of BC cells were promoted after TTN-AS1 was overexpressed. In addition, miR-140-5p was upregulated after silencing of TTN-AS1 in BC cells, while miR-140-5p was downregulated after overexpression of TTN-AS1 in BC cells. Furthermore, luciferase assays and RIP assay showed that miR-140-5p was a direct target of TTN-AS1 in BC. Our study uncovered a new oncogene in BC and suggests that TTN-AS1 enhances BC cell migration and invasion via sponging miR-140-5p, which provides a novel therapeutic target for BC patients.
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Affiliation(s)
- Jie Xue
- Department of Breast Surgery, Linyi Cancer Hospital, Linyi, Shandong 276000, P.R. China
| | - Zhixia Zhang
- Department of Breast Surgery, Linyi Cancer Hospital, Linyi, Shandong 276000, P.R. China
| | - Xiaona Li
- Department of Breast Surgery, Linyi Cancer Hospital, Linyi, Shandong 276000, P.R. China
| | - Qingfang Ren
- Department of Medical Oncology, Linyi Cancer Hospital, Linyi, Shandong 276000, P.R. China
| | - Qinghua Wang
- Department of Breast Surgery, Linyi Cancer Hospital, Linyi, Shandong 276000, P.R. China
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Kang Y, Jia Y, Wang Q, Zhao Q, Song M, Ni R, Wang J. Long Noncoding RNA KCNQ1OT1 Promotes the Progression of Non-Small Cell Lung Cancer via Regulating miR-204-5p/ATG3 Axis. Onco Targets Ther 2019; 12:10787-10797. [PMID: 31849486 PMCID: PMC6911321 DOI: 10.2147/ott.s226044] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023] Open
Abstract
Purpose Non-small cell lung cancer (NSCLC) is the first leading cause of cancer-related death globally. Long noncoding RNA KCNQ1 overlapping transcript 1 (KCNQ1OT1) was involved in the progression of multiple cancers by sponging target miRNA. We aimed to explore the pathological mechanism of KCNQ1OT1 in NSCLC progression. Methods The expression of KCNQ1OT1, miR-204-5p and autophagy-related gene 3 (ATG3) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). 3-(4, 5-Dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT) assay and flow cytometry assay were conducted for the detection of cell proliferation and apoptosis, respectively. Western blot assay was performed to examine the protein levels of B-cell lymphoma-2 (BCL-2), BCL2-Associated X (Bax), cleaved caspase-3, cleaved caspase-9 and LC3Ⅱ/LC3Ⅰ and P62. The interaction between miR-204-5p and KCNQ1OT1 or ATG3 was validated by dual-luciferase reporter system and RNA immunoprecipitation (RIP) assay. Murine xenograft assay was conducted to explore the function of KCNQ1OT1 in vivo. Immunohistochemistry (IHC) staining assay was used for the analysis of ki67-positive cell percentage. Results The expression of KCNQ1OT1 and ATG3 was up-regulated whereas miR-204-5p was down-regulated in NSCLC tumors and cells. MiR-204-5p was inversely correlated with KCNQ1OT1 or ATG3. In addition, KCNQ1OT1 knockdown facilitated apoptosis, inhibited autophagy and proliferation of NSCLC cells in vitro and blocked tumor growth in vivo. However, the miR-204-5p inhibitor reversed the effects. More importantly, ATG3 was a target gene of miR-204-5p and ATG3 overexpression restored the effect of miR-204-5p on NSCLC cell progression. Conclusion KCNQ1OT1 promotes cell proliferation and autophagy and inhibits cell apoptosis via regulating miR-204-5p/ATG3 axis, providing a promising target for NSCLC therapy.
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Affiliation(s)
- Yan Kang
- Department Two of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yaoli Jia
- Department of Respiratory Medicine, Xuchang Central Hospital, Xuchang, Henan, People's Republic of China
| | - Qilong Wang
- Department Two of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Qianru Zhao
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Meng Song
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Ran Ni
- Department Two of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Jing Wang
- Department Two of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
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Wang J, Zhang H, Situ J, Li M, Sun H. KCNQ1OT1 aggravates cell proliferation and migration in bladder cancer through modulating miR-145-5p/PCBP2 axis. Cancer Cell Int 2019; 19:325. [PMID: 31827399 PMCID: PMC6889643 DOI: 10.1186/s12935-019-1039-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 11/16/2019] [Indexed: 12/15/2022] Open
Abstract
Background The large involvement of long non-coding RNAs (LncRNAs) in the biological progression of numerous cancers has been reported. The function of lncRNA KCNQ1OT1 in bladder cancer (BC) remains largely unknown. This study aimed to explore the critical role of KCNQ1OT1 in BC. Materials and methods The qRT-PCR was applied to test the expression of RNAs. Cell proliferation was detected by CCK-8 and colony formation assays. Cell apoptosis was measured by TUNEL and flow cytometry experiments. Wound healing and transwell assays were employed to evaluate cell migration and invasion ability respectively. Western blot assay was used to measure relevant protein expression. Immunofluorescence (IF) staining was used to observe EMT process in BC. Results KCNQ1OT1 was significantly overexpressed in BC tissue and cell lines. KCNQ1OT1 depletion repressed cell proliferation, migration and invasion, whereas encouraged cell apoptosis. KCNQ1OT1 was a negatively/positively correlated with miR-145-5p/PCBP2 in respect with expression. Mechanically, KCNQ1OT1 was sponge of miR-145-5p and up-regulated the expression of PCBP2. MiR-145-5p inhibition and PCBP2 up-regulation could countervail the tumor-inhibitor role of KCNQ1OT1 knockdown in BC. Conclusion KCNQ1OT1 serves as competing endogenous RNA (ceRNA) to up-regulate PCBP2 via sponging miR-145-5p in BC progression.
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Affiliation(s)
- Jingyu Wang
- 1Department of Urology, Affiliated Hospital of Beihua University, No.12, Jiefangzhong Road, Jilin, 132001 Jilin China
| | - Hao Zhang
- 2Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510000 Guangdong China
| | - Jie Situ
- 2Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510000 Guangdong China
| | - Mingzhao Li
- 2Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510000 Guangdong China
| | - Hua Sun
- 3Department of Endocrinology, Affiliated Hospital of Beihua University, No.12, Jiefangzhong Road, Jilin, 132001 Jilin China
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Jiang X, Yu M, Zhu T, Lou L, Chen X, Li Q, Wei D, Sun R. Kcnq1ot1/miR-381-3p/ETS2 Axis Regulates Inflammation in Mouse Models of Acute Respiratory Distress Syndrome. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 19:179-189. [PMID: 31841990 PMCID: PMC6920288 DOI: 10.1016/j.omtn.2019.10.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 10/26/2019] [Accepted: 10/28/2019] [Indexed: 12/29/2022]
Abstract
Inflammatory mediators play a key role in the pathogenesis of acute respiratory distress syndrome (ARDS). In this study, we aimed to explore the involvement of the Kcnq1 opposite strand/antisense transcript 1 (Kcnq1ot1)/miR-381-3p/E26 transformation-specific proto-oncogene 2 (ETS2) axis in inflammation of lipopolysaccharide (LPS)-induced ARDS. Microarray analysis revealed ETS2 as an upregulated gene in ARDS. Then, a LPS-induced ARDS mouse model was constructed, with a series of gain- or loss-of-function experiments conducted to evaluate the lung function and neutrophil extracellular trap (NET) formation in lung tissue and determine the neutrophil number, myeloperoxidase (MPO) activity, and inflammatory factor levels in bronchoalveolar lavage fluid (BALF). As the results revealed, downregulated expression of ETS2 resulted in improved lung function, decreased NETs, MPO activity, and levels of interleukin (IL)-6 and tumor necrosis factor alpha (TNF-α), as well as increased IL-10 level. Then, the assays of dual-luciferase reporter, RNA-binding protein immunoprecipitation (RIP), and RNA pull-down were performed to validate that Kcnq1ot1 promoted ETS2 expression by competitively binding to miR-381-3p. Meanwhile, it was also found that Kcnq1ot1 silencing reversed the promotive effect of EST2 on ARDS. Our results provide evidence that Kcnq1ot1 silencing may reduce the inflammatory response in LPS-induced ARDS via inhibition of miR-381-30-dependent ETS2, thereby presenting new molecular understanding for the development of ARDS.
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Affiliation(s)
- Xiaohui Jiang
- Department of Critical Care Medicine, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital, Chun'an Branch), Hangzhou 311700, P.R. China; Department of Critical Care Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, P.R. China.
| | - Meihong Yu
- Department of Critical Care Medicine, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital, Chun'an Branch), Hangzhou 311700, P.R. China
| | - Taiping Zhu
- Department of Critical Care Medicine, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital, Chun'an Branch), Hangzhou 311700, P.R. China
| | - Lulu Lou
- Internal Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, P.R. China
| | - Xu Chen
- Department of Critical Care Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, P.R. China
| | - Qian Li
- Department of Critical Care Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, P.R. China
| | - Danhong Wei
- Department of Neuroscience Care Unit, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, P.R. China
| | - Renhua Sun
- Department of Critical Care Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, P.R. China
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Sun Y, Xu C, Wu Q, Zhang L, Wang P. Long noncoding RNA KCNQ1OT1 promotes proliferation, migration, and invasion in maxillary sinus squamous cell carcinoma by regulating miR-204/EphA7 axis. J Cell Biochem 2019; 121:2962-2969. [PMID: 31709597 DOI: 10.1002/jcb.29548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 10/08/2019] [Indexed: 11/10/2022]
Abstract
Long noncoding RNAs have been demonstrated to contribute to the development and progression of various cancers. However, the underlying regulatory mechanisms of KCNQ1OT1 in tumorigenesis of maxillary sinus squamous cell carcinoma (MSSCC) remain unknown. Herein, we found that KCNQ1OT1 expression was markedly upregulated in MSSCC tissues and MSSCC cell line (IMC-3) by using quantitative reverse transcription-polymerase chain reaction. Loss-of-function experiments revealed that the deletion of KCNQ1OT1 inhibited cell proliferation, migration, and invasion. Moreover, we confirmed KCNQ1OT1 could directly interact with miR-204 by bioinformatic prediction and dual luciferase assay, and miR-204 inhibitor markedly reversed MSSCC tumor phenotypes induced by shKCNQ1OT1. Finally, we demonstrated that KCNQ1OT1/miR-204 facilitated MSSCC progression by regulating Eph receptor A7 (EphA7). Taken together, these results revealed a novel regulatory mechanism KCNQ1OT1/miR-204/EphA7 axis, which could provide a new understanding of MSSCC tumorigenesis and develop potential targets for MSSCC therapy.
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Affiliation(s)
- Yiyuan Sun
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, The Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Chenjie Xu
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, The Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qingwei Wu
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, The Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Liuqing Zhang
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, The Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Peihua Wang
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, The Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Musa G, Srivastava S, Petzold J, Cazorla-Vázquez S, Engel FB. miR-27a/b is a posttranscriptional regulator of Gpr126 (Adgrg6). Ann N Y Acad Sci 2019; 1456:109-121. [PMID: 31596512 DOI: 10.1111/nyas.14245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 09/10/2019] [Accepted: 09/13/2019] [Indexed: 12/17/2022]
Abstract
Gpr126 (Adgrg6), a member of the adhesion G protein-coupled receptor family, has been associated with a variety of human diseases. Yet, despite its clinical importance, the mechanisms regulating Gpr126 expression are poorly understood. Here, we aimed at identifying upstream regulatory mechanisms of Gpr126 expression utilizing the heart as model organ in which Gpr126 regulates trabeculation. Here, we focused on possible regulation of Gpr126 regulation by microRNAs, which have emerged as key players in regulating development, have a critical role in disease progression, and might serve as putative therapeutic targets. In silico analyses identified one conserved binding site in the 3' UTR of Gpr126 for microRNA 27a and 27b (miR-27a/b). In addition, miR-27a/b and Gpr126 expression were differentially expressed during rat heart development. A regulatory role of miR-27a/b in controlling Gpr126 expression was substantiated by reduced Gpr126 mRNA levels upon ectopic expression of miR-27a/b in HEK293T cells and miR-27b in zebrafish embryos. Regulation of Gpr126 expression by direct binding of miR-27a/b to the 3' UTR of Gpr126 was verified by luciferase reporter assays in HEK293T cells. Finally, the modulation of gpr126 expression in zebrafish by injection of either miR-27b or miR-27b inhibitor in single cell-stage embryos resulted in hypo- or hypertrabeculation, respectively. Collectively, the data indicate that Gpr126 expression is regulated by miR-27a/b.
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Affiliation(s)
- Gentian Musa
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Swati Srivastava
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Jana Petzold
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Salvador Cazorla-Vázquez
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Felix B Engel
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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Yang J, Gong Y, Cai J, Liu Q, Zhang Z. lnc-3215 Suppression Leads to Calcium Overload in Selenium Deficiency-Induced Chicken Heart Lesion via the lnc-3215-miR-1594-TNN2 Pathway. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 18:1-15. [PMID: 31479920 PMCID: PMC6726916 DOI: 10.1016/j.omtn.2019.08.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/19/2019] [Accepted: 08/07/2019] [Indexed: 01/05/2023]
Abstract
Selenium deficiency has been proven to induce calcium disorders in the chicken heart. However, detailed regulatory mechanisms, e.g., the long noncoding RNA (lncRNA)-microRNA (miRNA)-mRNA regulatory axis, have not yet been described. Here, we point out lnc-2315, miR-1594, and Troponin T (TNNT2) based on the results of lncRNA and miRNA comparative genomics group analysis of Se-deficient chicken hearts compared with control hearts. We employed lnc-3215 and TNNT2 knockdown, miR-1594 knockdown, and overexpression models in the chicken embryos in vivo, and lnc-3215, miR-1594, and TNNT2 knockdown and overexpression models in cardiomyocytes in vitro. The dual-luciferase reporter assay and quantitative real-time PCR were used to confirm the relationships between miR-1594 and TNNT2, lnc-3215, and miR-1594 in cardiomyocytes. Our results revealed that TNNT2 suppression induced cardiac calcium overload in vivo and in vitro. miR-1594 activates cardiac calcium overload by targeting TNNT2. Moreover, we found that lnc-3215 regulates miR-1594, and thus influences the TNNT2 expression in vivo and in vitro; these conclusions were verified by gene knockdown in chicken embryos. Our present study revealed a novel regulatory model of a calcium program, which comprises lnc-3215, miR-1594, and TNNT2 in the chicken heart. Our conclusions may provide a feasible diagnostic tool for Se-deficient cardiomyocytes injury.
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Affiliation(s)
- Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Yafan Gong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.
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Qin Z, Zheng X, Fang Y. Long noncoding RNA TMPO-AS1 promotes progression of non-small cell lung cancer through regulating its natural antisense transcript TMPO. Biochem Biophys Res Commun 2019; 516:486-493. [DOI: 10.1016/j.bbrc.2019.06.088] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 06/16/2019] [Indexed: 10/26/2022]
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He J, Xu F, Man X, Zhang Y, Li H. Long non-coding RNA NEAT1 promotes tumor development and metastasis through targeting RAB9A in malignant melanoma. Minerva Med 2019; 112:308-309. [PMID: 31317690 DOI: 10.23736/s0026-4806.19.06235-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiahuan He
- Department of Dermatology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | | | | | - Ying Zhang
- Department of Dermatology, Second Affiliated University Hospital of Zhejiang, Hangzhou, China
| | - Hui Li
- Department of Dermatology, University Hospital of Science and Technology, Qingdao, China -
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Ion Channel Targeting with Antibodies and Antibody Fragments for Cancer Diagnosis. Antibodies (Basel) 2019; 8:antib8020033. [PMID: 31544839 PMCID: PMC6640718 DOI: 10.3390/antib8020033] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 12/12/2022] Open
Abstract
The antibody era has greatly impacted cancer management in recent decades. Indeed, antibodies are currently applied for both cancer diagnosis and therapy. For example, monoclonal antibodies are the main constituents of several in vitro diagnostics, which are applied at many levels of cancer diagnosis. Moreover, the great improvement provided by in vivo imaging, especially for early-stage cancer diagnosis, has traced the path for the development of a complete new class of antibodies, i.e., engineered antibody fragments. The latter embody the optimal characteristics (e.g., low renal retention, rapid clearance, and small size) which make them ideal for in vivo applications. Furthermore, the present review focuses on reviewing the main applications of antibodies and antibody fragments for solid cancer diagnosis, both in vitro and in vivo. Furthermore, we review the scientific evidence showing that ion channels represent an almost unexplored class of ideal targets for both in vitro and in vivo diagnostic purposes. In particular, we review the applications, in solid cancers, of monoclonal antibodies and engineered antibody fragments targeting the voltage-dependent ion channel Kv 11.1, also known as hERG1.
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Mao Y, Dong L, Zheng Y, Dong J, Li X. Prediction of Recurrence in Cervical Cancer Using a Nine-lncRNA Signature. Front Genet 2019; 10:284. [PMID: 31001325 PMCID: PMC6456668 DOI: 10.3389/fgene.2019.00284] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 03/15/2019] [Indexed: 12/17/2022] Open
Abstract
Background and Objective As a common cancer type in women, cervical cancer remains one of the leading causes of cancer-associated mortalities word wide. Recent evidence has demonstrated the regulatory role of a large number of long non-coding RNAs (lncRNAs) in cervical cancer. Here, we aimed to identify new biomarkers that related with the recurrence through comprehensive bioinformatics analysis. Methods Firstly, we collected online lncRNA expression data of cervical cancer patients which were divided into training, validation, and test set. Then we developed a nine-lncRNA signature from training set by conducting LASSO Cox regression model along with 10-fold cross validation. The prognostic value of this risk score was validated in all the three sets using Kaplan–Meier analysis, C-index, time-dependent ROC curves and dynamic AUC. Biological function of these lncRNAs in cervical cancer cells were evaluated by performing gene ontology biological process enrichment and Kyoto Encyclopedia of Genes and Genomes signaling pathways analysis. Results According to the results, a higher predict accuracy was observed in the nine-lncRNA signature than that of FIGO stage in all the three sets. Stratified analysis also demonstrated that the nine-lncRNA signature can predict the recurrence of cervical cancer within FIGO stage. The potential mechanisms underlying the nine-lncRNAs from the signature were also identified according to the gene enrichment analysis. Conclusion In the present article, we provided a reliable prognostic tool to facilitate the individual management of patients with cervical cancer after treatment.
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Affiliation(s)
- Yu Mao
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Lixin Dong
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yue Zheng
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Jing Dong
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Xin Li
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
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