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LncRNA-LA16c-313D11.11,A Signature to Predict Endometrial Carcinoma Patients with a Better Survival. Reprod Sci 2023; 30:883-889. [PMID: 36002712 DOI: 10.1007/s43032-022-01052-4] [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: 04/15/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
Abstract
The aim of this study was to develop and internally validate a nomogram of the probability EC patients surviving longer than 5 years. Quantitative real-time PCR (qRT-PCR) was implemented to analyze the expression of lncRNA-LA16c-313D11.11 in 60 EC tissues. The clinicopathological characteristics and follow-up data were retrospectively gathered and analyzed. To establish the prediction model, multivariate logistic regression analysis was applied, and the discrimination, calibration, and clinical practicability of the prediction model were assessed with a concordance index (C-index), calibration chart, and decision curve analysis. Bootstrap validation was performed for internal validation. The prediction factors included the age of patients, myometrial invasion, lymphovascular space invasion, histological subtype, and the expression of lncRNA-LA16C-313D11.11. The model demonstrated good calibration and modest discrimination (C-index = 0.860, 95% confidence interval: 0.724-0.946). Moreover, the interval validation achieved a high C-index value of 0.778. This study revealed the predictive value of lncRNA-LA16C-313D11.11 and successfully developed a nomogram for predicting EC patients survival longer than 5 years, which may facilitate the institution of personalized treatment algorithms, surveillance strategies, and lifestyle interventions.
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Fang D, Zhang Q, Mu M, Deng Q, Wang Y, Li Q. lncRNA ENST00000585827 Contributes to the Progression of Endometrial Carcinoma via Regulating miR-424/E2F6/E2F7 Axis. Appl Biochem Biotechnol 2022; 195:3096-3108. [PMID: 36525235 DOI: 10.1007/s12010-022-04267-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
Endometrial cancer (EC) ranks fourth among the most common gynecologic malignancies. Despite advances in medical technology, the pathogenesis is still unclear. Numerous reports have identified the involvement of lncRNA in the malignant progression of endometrial cancer. The aim of the study was to investigate the expression level of lncRNA ENST00000585827 (lncRNA E27) in endometrial cancer and the molecular mechanism that regulates the development of endometrial cancer. Combined with the results of the previous study, PCR analysis confirmed that lncRNA E27 was significantly upregulated in endometrial cancer cell lines. The results of CCK-8, wound healing assay, and transwell experiments showed that lncRNA E27 could significantly inhibit cell proliferation, migration, and invasion. Flow cytometry results confirmed that lncRNA E27 could promote apoptosis. Furthermore, based on bioinformatics predictions, dual-luciferase assay and RT-qPCR analysis confirmed that miR-424, as its downstream molecule, competitively regulates the expression of E2F6/E2F7. Rescue experiments further supported that lncRNA E27 inhibited proliferation, migration, invasion, and promoted apoptosis of endometrial cancer through miR-424/E2F6/E2F7 signaling axis. Conclusively, our findings revealed the role of lncRNA E27 in regulating the miR-424/E2F6/E2F7 signaling axis during EC progression, opening up new strategies for the treatment of endometrial cancer.
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Gao S, Zhao T, Meng F, Luo Y, Li Y, Wang Y. Circular RNAs in endometrial carcinoma (Review). Oncol Rep 2022; 48:212. [PMID: 36263622 PMCID: PMC9608256 DOI: 10.3892/or.2022.8427] [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: 06/15/2022] [Accepted: 08/17/2022] [Indexed: 11/24/2022] Open
Abstract
As one of the leading causes of death in women in Western developed countries, endometrial carcinoma (EC) is a common gynecological malignant tumor that seriously threatens women's health. In recent years, a trend has emerged of EC being manifested in younger women, and its overall incidence is gradually rising. Circular RNAs (circRNAs) are novel endogenous transcripts that have limited ability to encode proteins due to their covalent closed‑loop structure, which differs from that of other types of RNA. A growing body of evidence has demonstrated that circRNAs fulfill an important role in lung cancer, gastric cancer, breast cancer, EC and other malignant tumor types, and they can affect the occurrence and development of these malignancies through a variety of pathways, further demonstrating the potential of circRNAs as molecular biomarkers for the diagnosis, treatment and prognosis of malignant tumors. The purpose of the present review is to summarize the current understanding of the biogenesis and effects of circRNAs, and to discuss the expression, function and underlying mechanism of circRNAs in EC in order to identify potential novel biomarkers.
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Affiliation(s)
- Shan Gao
- Department of Obstetrics and Gynecology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Tianjun Zhao
- Department of Obstetrics and Gynecology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Fangchi Meng
- Department of Obstetrics and Gynecology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yinzhou Luo
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yan Li
- Department of Obstetrics and Gynecology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yong Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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DSCAM-AS1 Long Non-Coding RNA Exerts Oncogenic Functions in Endometrial Adenocarcinoma via Activation of a Tumor-Promoting Transcriptome Profile. Biomedicines 2022; 10:biomedicines10071727. [PMID: 35885035 PMCID: PMC9313190 DOI: 10.3390/biomedicines10071727] [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: 05/19/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 11/16/2022] Open
Abstract
Accumulating evidence suggests that lncRNA DSCAM-AS1 acts tumor-promoting in various cancer entities. In breast cancer, DSCAM-AS1 was shown to be the lncRNA being most responsive to induction by estrogen receptor α (ERα). In this study, we examined the function of DSCAM-AS1 in endometrial adenocarcinoma using in silico and different in vitro approaches. Initial analysis of open-source data revealed DSCAM-AS1 overexpression in endometrial cancer (EC) (p < 0.01) and a significant association with shorter overall survival of EC patients (HR = 1.78, p < 0.01). In EC, DSCAM-AS1 was associated with endometrial tumor promotor gene PRL and with expression of ERα and its target genes TFF1 and PGR. Silencing of this lncRNA by RNAi in two EC cell lines was more efficient in ERα-negative HEC-1B cells and reduced their growth and the expression of proliferation activators like NOTCH1, PTK2 and EGR1. DSCAM-AS1 knockdown triggered an anti-tumoral transcriptome response as revealed by Affymetrix microarray analysis, emerging from down-regulation of tumor-promoting genes and induction of tumor-suppressive networks. Finally, several genes regulated upon DSCAM-AS1 silencing in vitro were found to be inversely correlated with this lncRNA in EC tissues. This study clearly suggests an oncogenic function of DSCAM-AS1 in endometrial adenocarcinoma via activation of a tumor-promoting transcriptome profile.
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LncRNA-miRNA-mRNA regulatory axes in endometrial cancer: a comprehensive overview. Arch Gynecol Obstet 2022; 306:1431-1447. [PMID: 35182183 DOI: 10.1007/s00404-022-06423-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/24/2022] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Recent research on tumorigenesis and progression has opened up an array of novel molecular mechanisms in the form of interactions between cellular non-coding RNAs (long non-coding RNA[lncRNA]/microRNA [miRNA]) and coding transcripts that regulate health and disease. Endometrial cancer (EC) is a prominent gynecological malignancy with a high incidence rate and poorly known etiology and prognostic factors that hinder the success of disease management. The emerging role of lncRNA-miRNA-mRNA interactions and their dysregulation in the pathophysiology of EC has been elucidated in many recent studies. METHODS A thorough literature review was conducted to explore information about lncRNA-miRNA-mRNA axes in EC. RESULTS Several lncRNAs act as molecular sponges that sequester various tumor suppressor miRNAs to inhibit their function, leading to the dysregulation of their target mRNA transcripts that contribute to the EC regulation. CONCLUSIONS This review summarizes these networks of molecular mechanisms and their contribution to different aspects of endometrial carcinogenesis, leading to a better conceptualization of the molecular pathways that underlie the disease and helping establish novel diagnostic biomarkers and therapeutic intervention points to aid the curative intent of EC.
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Khashkhashi Moghadam S, Bakhshinejad B, Khalafizadeh A, Mahmud Hussen B, Babashah S. Non-coding RNA-associated competitive endogenous RNA regulatory networks: Novel diagnostic and therapeutic opportunities for hepatocellular carcinoma. J Cell Mol Med 2021; 26:287-305. [PMID: 34907642 PMCID: PMC8743668 DOI: 10.1111/jcmm.17126] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/09/2021] [Accepted: 12/03/2021] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC), as the most prevalent liver malignancy, is annually diagnosed in more than half a million people worldwide. HCC is strongly associated with hepatitis B and C viral infections as well as alcohol abuse. Obesity and nonalcoholic fatty liver disease (NAFLD) also significantly enhance the risk of liver cancer. Despite recent improvements in therapeutic approaches, patients diagnosed in advanced stages show poor prognosis. Accumulating evidence provides support for the regulatory role of non-coding RNAs (ncRNAs) in cancer. There are a variety of reports indicating the regulatory role of microRNAs (miRNAs) in different stages of HCC. Long non-coding RNAs (LncRNAs) exert their effects by sponging miRNAs and controlling the expression of miRNA-targeted genes. Circular RNAs (circRNAs) perform their biological functions by acting as transcriptional regulators, miRNA sponges and protein templates. Diverse studies have illustrated that dysregulation of competing endogenous RNA networks (ceRNETs) is remarkably correlated with HCC-causing diseases such as chronic viral infections, nonalcoholic steatohepatitis and liver fibrosis/cirrhosis. The aim of the current article was to provide an overview of the role and molecular mechanisms underlying the function of ceRNETs that modulate the characteristics of HCC such as uncontrolled cell proliferation, resistance to cell death, metabolic reprogramming, immune escape, angiogenesis and metastasis. The current knowledge highlights the potential of these regulatory RNA molecules as novel diagnostic biomarkers and therapeutic targets in HCC.
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Affiliation(s)
| | - Babak Bakhshinejad
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ali Khalafizadeh
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq.,Center of Research and Strategic Studies, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Sadegh Babashah
- Research and Development Center of Biotechnology, Tarbiat Modares University, Tehran, Iran.,Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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He Y, Xu S, Qi Y, Tian J, Xu F. Long noncoding RNA SNHG25 promotes the malignancy of endometrial cancer by sponging microRNA-497-5p and increasing FASN expression. J Ovarian Res 2021; 14:163. [PMID: 34789312 PMCID: PMC8600866 DOI: 10.1186/s13048-021-00906-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 10/15/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Small nucleolar RNA host gene 25 (SNHG25), a long noncoding RNA, has been well-studied in epithelial ovarian cancer. However, the specific functions of SNHG25 in endometrial cancer (EC) have not been studied yet. In this study, we aimed to elucidate the clinical significance of SNHG25 in EC and determine the regulatory activity of SNHG25 on the tumor-associated EC phenotype. We also thoroughly explored the molecular mechanisms underlying SNHG25 function in EC. METHODS Gene expression was measured using quantitative real-time polymerase chain reaction. The detailed functions of SNHG25 in EC were examined by performing loss-of-function experiments. Moreover, the regulatory mechanisms involving SNHG25, microRNA-497-5p, and fatty acid synthase (FASN) were unveiled using the luciferase reporter assay and RNA immunoprecipitation. RESULTS We observed a high level of SNHG25 in EC using the TCGA dataset and our study cohort. Patients with a high SNHG25 level had shorter overall survival than those with a low SNHG25 level. SNHG25 deficiency resulted in tumor-repressing activities in EC cells by decreasing cell proliferation, migration, and invasion and promoting cell apoptosis. Furthermore, the function of SNHG25 depletion in impairing tumor growth in vivo was confirmed. SNHG25 sequestered miR-497-5p as a competing endogenous RNA in EC and consequently positively regulated FASN expression. Thus, the decrease in miR-497-5p or increase in FASN could neutralize the modulatory actions of SNHG25 knockdown in EC cells. CONCLUSIONS The depletion of SNHG25 impedes the oncogenicity of EC by targeting the miR-497-5p/FASN axis. The newly elucidated SNHG25/miR-497-5p/FASN pathway may be a promising target for the molecular-targeted management of EC.
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Affiliation(s)
- Yuhua He
- Department of Gynaecology and Obstetrics, Jinshan District Tinglin Hospital, 80 North Siping Road, Jinshan District, Shanghai, 201505, China
| | - Shuifang Xu
- Department of Gynaecology and Obstetrics, Jinshan District Tinglin Hospital, 80 North Siping Road, Jinshan District, Shanghai, 201505, China
| | - Yi Qi
- Department of Gynaecology and Obstetrics, Jinshan District Tinglin Hospital, 80 North Siping Road, Jinshan District, Shanghai, 201505, China
| | - Jinfang Tian
- Department of Gynaecology and Obstetrics, Jinshan District Tinglin Hospital, 80 North Siping Road, Jinshan District, Shanghai, 201505, China
| | - Fengying Xu
- Department of Gynaecology and Obstetrics, Jinshan District Tinglin Hospital, 80 North Siping Road, Jinshan District, Shanghai, 201505, China.
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Zhang D, Zhang Y, Sun X. LINC01133 promotes the progression of cervical cancer via regulating miR-30a-5p/FOXD1. Asia Pac J Clin Oncol 2021; 17:253-263. [PMID: 33078907 DOI: 10.1111/ajco.13451] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 07/30/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The prognosis of patients with recurrent or metastatic cervical cancer (CC) remains poor, and its incidence is especially high in developing countries. Multiple long noncoding RNAs are recently identified as crucial oncogenic factors or tumor suppressors. In this study, we explored the function and mechanism of LINC01133 during the progression of CC. METHODS Expression levels of LINC01133 and miR-30a-5p in 50 CC tissue samples were measured using quantitative real-time polymerase chain reaction. Immunohistochemistry and Western blot analysis were used to detect the expression of oncogene forkhead box D1 (FOXD1). The association between pathological indices and the expression level of LINC01133 was also analyzed. Human CC cell lines HeLa and SiHa were used as cell models. CCK-8 and bromodeoxyuridine assays were used to assess the effect of LINC01133 on CC cell line proliferation. Flow cytometry was used to study the effect of LINC01133 on CC apoptosis. Transwell assay was conducted to detect the effect of LINC01133 on migration and invasion. Furthermore, luciferase reporter assay was used to confirm the targeting relationship between miR-30a-5p to LINC01133. RESULTS We observed that LINC01133 expression in CC clinical samples was significantly increased, with high expression associated with higher T stage and negative HPV infection of the patients. Its overexpression remarkably accelerated proliferation and metastasis of CC cells, with reduced apoptosis. LINC01133 knockdown suppressed the malignant phenotypes of CC cells. Overexpression of LINC01133 significantly reduced the expression of miR-30a-5p by sponging it and enhanced the expression of FOXD1. CONCLUSIONS We report the overexpression of LINC01133 in CC sample and cell lines, which correlated with unfavorable pathological indices. LINC01133 was a sponge of tumor suppressor miR-30a-5p, and it enhanced the expression of FOXD1 indirectly and functioned as an oncogenic lncRNA in CC.
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Affiliation(s)
- Dan Zhang
- Department of Gynecology, General Hospital of Fushun Mining Bureau of Liaoning Health Industry Group, Fushun, Liaoning Province, China
| | - Yuyang Zhang
- The Second Department of Oncology, General Hospital of Fushun Mining Bureau of Liaoning Health Industry Group, Fushun, Liaoning Province, China
| | - Xiuyun Sun
- Department of Gynecology, General Hospital of Fushun Mining Bureau of Liaoning Health Industry Group, Fushun, Liaoning Province, China
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Wan J, Chen P, Zhang Y, Ding J, Yang Y, Li X. Identification of the 11-lncRNA signatures associated with the prognosis of endometrial carcinoma. Sci Prog 2021; 104:368504211006593. [PMID: 33781143 PMCID: PMC10358503 DOI: 10.1177/00368504211006593] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Endometrial carcinoma (EC) is the fourth most common cancer in women. Some long non-coding RNAs (lncRNAs) are regarded as potential prognostic biomarkers or targets for treatment of many types of cancers. We aim to screen prognostic-related lncRNAs and build a possible lncRNA signature which can effectively predict the survival of patients with EC. We obtained lncRNA expression profiling from the TCGA database. The patients were classified into training set and verification set. By performing Univariate Cox regression model, Robust likelihood-based survival analysis, and Cox proportional hazards model, we developed a risk score with the Cox co-efficient of individual lncRNAs in the training set. The optimum cut-off point was selected by ROC analysis. Patients were effectively divided into high-risk group and low-risk group according to the risk score. The OS of the low-risk patients was significantly prolonged compared with that of the high-risk group. At last, we validated this 11-lncRNA signature in the verification set and the complete set. We identified an 11-lncRNA expression signature with high stability and feasibility, which can predict the survival of patients with EC. These findings provide new potential biomarkers to improve the accuracy of prognosis prediction of EC.
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Affiliation(s)
- Jing Wan
- Department of Gynecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Peigen Chen
- Reproductive Medicine Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangdong Province, China
| | - Yu Zhang
- Department of Gynecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jie Ding
- Department of Gynecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Yuebo Yang
- Department of Gynecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xiaomao Li
- Department of Gynecology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Zhang XJ, Qi GT, Zhang XM, Wang L, Li FF. lncRNA RHPN1-AS1 promotes the progression of endometrial cancer through the activation of ERK/MAPK pathway. J Obstet Gynaecol Res 2020; 47:533-543. [PMID: 33169491 DOI: 10.1111/jog.14548] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/22/2020] [Accepted: 10/16/2020] [Indexed: 01/21/2023]
Abstract
AIM This study aimed to investigate the function of long noncoding RNA RHPN1 antisense RNA 1 (lncRNA RHPN1-AS1) in the progression of endometrial cancer (EC) and its underlying molecular mechanisms. METHODS The RHPN1-AS1 expression was measured by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) in EC tissues and cells. The cell clones, proliferation, cell cycle, apoptosis, migration and invasion in Ishikawa and HEC-1A cells were respectively measured by colony formation assay, cell counting kit-8 assay (CCK-8) assay, flow cytometry, wound healing assay and transwell assay. In addition, the protein expressions in Ishikawa and HEC-1A cells were measured using western blot and Immunofluorescence assay. RESULTS Our data showed the RHPN1-AS1 expression was significantly upregulated in both EC tissues and cells. The expression of RHPN1-AS1 was significantly correlated with FIGO stage, histological grade, and lymph node metastasis. Additionally, silencing RHPN1-AS1 could inhibit proliferation, cell cycle progression, migration and invasion, and also promote apoptosis in Ishikawa and HEC-1A cells. Moreover, silencing RHPN1-AS1 could markedly elevate the expressions of caspase-3 and Bax, but reduce the Bcl-2 expression in Ishikawa and HEC-1A cells. We also found that silencing RHPN1-AS1 could significantly inhibit the phosphorylation of MEK and ERK in Ishikawa and HEC-1A cells. After U0126 pretreatment, the inhibition effect of silencing RHPN1-AS1 on the phosphorylation of MEK and ERK was strengthened. CONCLUSION Our study demonstrated that RHPN1-AS1 could facilitate cell proliferation, migration and invasion, as well as inhibit apoptosis via activating ERK/MAPK pathway in EC.
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Affiliation(s)
- Xian-Juan Zhang
- Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Guang-Tao Qi
- Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Xiao-Min Zhang
- Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Li Wang
- Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Fang-Fang Li
- Binzhou Medical University Hospital, Binzhou, Shandong, China
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Yin X, Li X, Feng G, Qu Y, Wang H. LINC00565 Enhances Proliferative Ability in Endometrial Carcinoma by Downregulating KLF9. Onco Targets Ther 2020; 13:6181-6189. [PMID: 32636642 PMCID: PMC7334012 DOI: 10.2147/ott.s249133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/13/2020] [Indexed: 12/26/2022] Open
Abstract
Objective To detect LINC00565 expression level in endometrial carcinoma (EC) samples and cell lines, and the correlations between LINC00565 and clinical features of EC patients. After intervening LINC00565, the underlying mechanism about proliferative ability in EC cell lines is observed. Methods Relative levels of LINC00565 and KLF9 in 52 paired EC and paracancerous tissues were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The relationship between relative level of LINC00565 or KLF9 and clinical features of EC patients was analyzed. After knockdown of LINC00565 and KLF9, potential regulations of them on biological functions of EC were examined by Cell Counting Kit (CCK-8), colony formation assay and in vivo xenograft model in nude mice, respectively. At last, dual-luciferase reporter assay and rescue experiments were conducted to illustrate the mechanisms of LINC00565 and KLF9 in mediating the development of EC. Results LINC00565 was upregulated in EC tissues. Chi-square analysis showed that a high level of LINC00565 predicted large tumor size, advanced pathological staging and poor prognosis in EC. Silence of LINC00565 decreased proliferative ability in EC cells and tumor growth in nude mice bearing EC. KLF9 was the target gene of LINC00565. The negative interaction between LINC00565 and KLF9 was responsible for stimulating the malignant development of EC. Knockdown of KLF9 could abolish the regulatory effects of silenced LINC00565 on proliferative ability and tumorigenesis in EC. Conclusion LINC00565 is upregulated in EC tissues and closely linked to tumor size, pathological staging and poor prognosis in EC patients. LINC00565 stimulates proliferative ability in EC by downregulating KLF9.
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Affiliation(s)
- Xiuyan Yin
- Department of Ophthalmology, Yantai Yuhuangding Hospital, Yantai 264000, People's Republic of China
| | - Xiaohong Li
- Department of Obstetrics and Gynecology, Yantai Yuhuangding Hospital, Yantai 264000, People's Republic of China
| | - Guijiao Feng
- Department of the Outpatient, Yantai Yuhuangding Hospital, Yantai, People's Republic of China
| | - Yuejie Qu
- Department of Obstetrics and Gynecology, Yantai Yuhuangding Hospital, Yantai 264000, People's Republic of China
| | - Hong Wang
- Department of Ophthalmology, Yantai Yuhuangding Hospital, Yantai 264000, People's Republic of China
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Yang Y, Wu J, Zhou H, Liu W, Wang J, Zhang Q. STAT1-induced upregulation of lncRNA LINC01123 predicts poor prognosis and promotes the progression of endometrial cancer through miR-516b/KIF4A. Cell Cycle 2020; 19:1502-1516. [PMID: 32401659 PMCID: PMC7469438 DOI: 10.1080/15384101.2020.1757936] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been proposed as suppressors or promoters in many tumor processes. LncRNA LINC01123 (LINC01123) was a newly identified lncRNA which was firstly functionally analyzed in lung cancer. However, its expression and function in other tumor types were rarely reported. In this study, we firstly confirmed that LINC01123 was highly expressed in both endometrial cancer (EC) tissues and cell lines using bioinformatics analysis and RT-CPR. Then, we preliminarily analyzed the mechanisms involved in overexpression of LINC01123 in EC, finding that STAT1 could bind directly to the LINC01123 promoter region and activate its transcription. Clinical research with 106 patients indicated that high expression of LINC01123 was associated with advanced clinical progression and poor clinical outcome of EC patients. Functionally, knockdown of LINC01123 suppressed the proliferation, migration and invasion of EC cells, and promoted apoptosis. Mechanistically, we observed that LINC01123 may act as an endogenous sponge by competing for miR-516b, thereby regulating KIF4A. Overall, our study revealed a novel LINC01123/miR-516b/KIF4A pathway regulatory axis in EC pathogenesis. LINC01123 may be a novel prognostic biomarker and therapeutic target in EC.Abbreviations: EC: Endometrial cancer; LncRNA: Long non-coding RNA; EMT: epithelial-mesenchymal transition; miRNA: microRNA; qRT-PCR: Quantitative real-time polymerase chain reaction; SPSS: Statistical Package for Social Sciences; Chip: chromatin-immunoprecipitation, TCGA: The Cancer Genome Atlas; CCK-8: Cell Counting Kit-8; KIF4A: Chromosome-associated kinesin KIF4A.
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Affiliation(s)
- Yuguang Yang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Jin Wu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Hongfeng Zhou
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Wenming Liu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Jincai Wang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
| | - Qingyuan Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital , Harbin, Heilongjiang, China
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Machine Learning Supports Long Noncoding RNAs as Expression Markers for Endometrial Carcinoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3968279. [PMID: 32420338 PMCID: PMC7199595 DOI: 10.1155/2020/3968279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022]
Abstract
Uterine corpus endometrial carcinoma (UCEC) is the second most common type of gynecological tumor. Several research studies have recently shown the potential of different ncRNAs as biomarkers for prognostics and diagnosis in different types of cancers, including UCEC. Thus, we hypothesized that long noncoding RNAs (lncRNAs) could serve as efficient factors to discriminate solid primary (TP) and normal adjacent (NT) tissues in UCEC with high accuracy. We performed an in silico differential expression analysis comparing TP and NT from a set of samples downloaded from the Cancer Genome Atlas (TCGA) database, targeting highly differentially expressed lncRNAs that could potentially serve as gene expression markers. All analyses were performed in R software. The receiver operator characteristics (ROC) analyses and both supervised and unsupervised machine learning indicated a set of 14 lncRNAs that may serve as biomarkers for UCEC. Functions and putative pathways were assessed through a coexpression network and target enrichment analysis.
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Yu H, Yang AM, Lu XH, Feng L, Wu X, Cui JF, Cheng JY. Analysis of Long Non-Coding RNA Expression Profile and Functional Study of LOC389332 in Early Gastric Cancer. Med Sci Monit 2019; 25:10114-10121. [PMID: 31884510 PMCID: PMC6948287 DOI: 10.12659/msm.917935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Long non-coding RNAs (LncRNAs) could potentially function as diagnostic markers for gastric carcinoma. Nevertheless, the expression profile and biological feature of LncRNAs in early gastric cancer (EGC) remains to be explored. Material/Methods LncRNA expression microarray analysis was performed on 6 paired EGC tissues. One deregulated LncRNA, LOC389332, was validated using a quantitative reverse-transcription polymerase chain reaction (qRT-PCR) assay using independent tissue samples and cell lines. The Cell Counting Kit-8 (CCK-8) assay and wound healing assay were conducted to evaluate its influences on the proliferation and migration of gastric cancer cells. LncRNA expression microarray and gene ontology (GO) analysis were also performed on the LOC389332 knockdown cell line model to explore the molecular feature of LOC389332 in gastric carcinoma. Results The LncRNA expression profiling showed that 72 LncRNAs were significantly differentially expressed in EGC tissues. The results in the validation phase revealed that LOC389332 was remarkably overexpressed in gastric carcinoma tissues, precancerous lesions, and gastric cancer cells. Functional study showed that knockdown of LOC389332 expression could inhibit cell proliferation and migration. LncRNA expression microarray on the LOC389332 knockdown cell line model revealed that 393 mRNAs were differentially expressed. The GO enrichment analysis indicated that the downregulated genes were mainly associated with cell membrane function, signal transmission process, and cell adhesion process. Conclusions The LncRNA expression profile between EGC and gastritis tissues was significantly different. LOC389332 was potential non-coding oncogenes in gastric cancer, and it may perform its function through altering cell membrane function, signal transmission, and cell adhesion.
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Affiliation(s)
- Hang Yu
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
| | - Ai-Ming Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
| | - Xing-Hua Lu
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
| | - Lin Feng
- State Key Laboratory of Molecular Oncology, Cancer Institute Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
| | - Xi Wu
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
| | - Jian-Fang Cui
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
| | - Jie-Yao Cheng
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China (mainland)
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Smolle MA, Czapiewski P, Lapińska-Szumczyk S, Majewska H, Supernat A, Zaczek A, Biernat W, Golob-Schwarzl N, Haybaeck J. The Prognostic Significance of Eukaryotic Translation Initiation Factors (eIFs) in Endometrial Cancer. Int J Mol Sci 2019; 20:E6169. [PMID: 31817792 PMCID: PMC6941158 DOI: 10.3390/ijms20246169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/01/2019] [Accepted: 12/05/2019] [Indexed: 02/07/2023] Open
Abstract
Whilst the role of eukaryotic translation initiation factors (eIFs) has already been investigated in several human cancers, their role in endometrial cancer (EC) is relatively unknown. In the present retrospective study, 279 patients with EC (1180 samples) were included (mean age: 63.0 years, mean follow-up: 6.1 years). Samples were analysed for expression of 7 eIFs subunits (eIF2α, eIF3c, eIF3h, eIF4e, eIF4g, eIF5, eIF6) through immunohistochemistry and western blotting. Fifteen samples of healthy endometrium served as controls. Density and intensity were assessed and mean combined scores (CS) calculated for each patient. Upon immunohistochemistry, median eIF5 CS were significantly higher in EC as compared with non-neoplastic tissue (NNT, p < 0.001), whilst median eIF6 CS were significantly lower in EC (p < 0.001). Moreover, eIF5 (p = 0.002), eIF6 (p = 0.032) and eIF4g CS (p = 0.014) were significantly different when comparing NNT with EC grading types. Median eIF4g CS was higher in type II EC (p = 0.034). Upon western blot analysis, eIF4g (p < 0.001), peIF2α (p < 0.001) and eIF3h (p < 0.05) were significantly overexpressed in EC, while expression of eIF3c was significantly reduced in EC as compared with NNT (p < 0.001). The remaining eIFs were non-significant. Besides tumour stage (p < 0.001) and patient's age (p < 0.001), high eIF4g CS-levels were independently associated with poor prognosis (HR: 1.604, 95%CI: 1.037-2.483, p = 0.034). The other eIFs had no prognostic significance. Notably, the independent prognostic significance of eIF4g was lost when adding tumour type. Considering the difficulties in differentiating EC type I and II, eIF4g may serve as a novel prognostic marker indicating patient outcome.
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Affiliation(s)
- Maria Anna Smolle
- Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria;
- Area 2 Cancer, Center for Biomarker Research in Medicine, Stiftingtalstraße 5, 8010 Graz, Austria;
| | - Piotr Czapiewski
- Department of Pathomorphology, Medical University of Gdansk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland; (P.C.); (H.M.); (W.B.)
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Sylwia Lapińska-Szumczyk
- Department of Gynaecology, Gynaecological Oncology and Gynaecological Endocrinology, Medical University of Gdańsk, M. Skłodowskiej-Curie 3a Street, 80-210 Gdańsk, Poland;
| | - Hanna Majewska
- Department of Pathomorphology, Medical University of Gdansk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland; (P.C.); (H.M.); (W.B.)
| | - Anna Supernat
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańnsk and Medical University of Gdańsk, Bażyńskiego 1a, 80-952 Gdańsk, Poland; (A.S.); (A.Z.)
| | - Anna Zaczek
- Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańnsk and Medical University of Gdańsk, Bażyńskiego 1a, 80-952 Gdańsk, Poland; (A.S.); (A.Z.)
| | - Wojciech Biernat
- Department of Pathomorphology, Medical University of Gdansk, Mariana Smoluchowskiego 17, 80-214 Gdańsk, Poland; (P.C.); (H.M.); (W.B.)
| | - Nicole Golob-Schwarzl
- Area 2 Cancer, Center for Biomarker Research in Medicine, Stiftingtalstraße 5, 8010 Graz, Austria;
- Institute of Pathology, Medical University of Graz, Auenbruggerplatz 25, 8036 Graz, Austria
| | - Johannes Haybaeck
- Area 2 Cancer, Center for Biomarker Research in Medicine, Stiftingtalstraße 5, 8010 Graz, Austria;
- Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, Leipziger Straße 44, 39120 Magdeburg, Germany
- Institute of Pathology, Medical University of Graz, Auenbruggerplatz 25, 8036 Graz, Austria
- Department of Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, Müllerstraße 44, 6020 Innsbruck, Austria
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16
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Taherian-Esfahani Z, Taheri M, Dashti S, Kholghi-Oskooei V, Geranpayeh L, Ghafouri-Fard S. Assessment of the expression pattern of mTOR-associated lncRNAs and their genomic variants in the patients with breast cancer. J Cell Physiol 2019; 234:22044-22056. [PMID: 31062358 DOI: 10.1002/jcp.28767] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/13/2019] [Accepted: 04/17/2019] [Indexed: 12/24/2022]
Abstract
The mechanistic target of rapamycin (mTOR) is a fundamental component of a signaling pathway that is involved in the pathogenesis of breast cancer via different mechanisms. This pathway is functionally linked with a number of small nucleolar RNA host genes (SNHGs). In the present project, we have searched for the expression quantitative trait loci (eQTLs) within SNHGs that are possibly involved in the pathogenesis of breast cancer. Following this in silico step, we have assessed expression levels of mTOR and four SNHGs in malignant and nonmalignant samples obtained from 80 patients with breast cancer. We also genotyped rs4615861 of SNHG3 and rs3087978 of SNHG5 in the peripheral blood of patients. SNHG12 expression was not detected in any of the assessed malignant or nonmalignant tissues. So this gene was excluded from further steps. Expression of mTOR and other three long noncoding RNAs (lncRNAs) were significantly increased in the malignant tissues compared with the nonmalignant tissues. When classifying patients into down-/upregulation categorized based on the transcript levels of each gene in malignant tissue versus nonmalignant tissues, we noticed associations between expression of SNHG1 and stage (p = 0.03), expression of SNHG5 and grade (p = 0.05), as well as between expression of SNHG3 and history of oral contraceptive use (p = 0.04). We also detected higher levels of SNHG3 expression in estrogen receptor/progesterone receptor (ER/PR) negative tumors compared with the ER/PR positive tumors (p = 0.003 and p = 0.01, respectively). Moreover, there was a trend toward higher expression of this lncRNA in HER2-positive tumors compared with the HER2-negative ones (p = 0.07). Combination of transcript levels of all genes could differentiate malignant tissues from nonmalignant tissues with the diagnostic power of 69% (p = 0.0001). The rs3087978 was associated with the expression of mTOR in malignant tissues in a way that TT and TG genotypes were associated with the higher and lower levels of expressions, respectively (p = 0.01). The current study underscores the significance of SNHGs in the pathogenesis of breast cancer.
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Affiliation(s)
- Zahra Taherian-Esfahani
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepideh Dashti
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Kholghi-Oskooei
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Lobat Geranpayeh
- Department of Surgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Lv Y, Chen S, Wu J, Lin R, Zhou L, Chen G, Chen H, Ke Y. Upregulation of long non-coding RNA OGFRP1 facilitates endometrial cancer by regulating miR-124-3p/SIRT1 axis and by activating PI3K/AKT/GSK-3β pathway. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2083-2090. [PMID: 31131636 DOI: 10.1080/21691401.2019.1617727] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We planned to investigate the possible influences of long non-coding RNA (opioid growth factor receptor pseudogene 1) OGFRP1 in endometrial cancer and its potential regulatory mechanism. We measured the level of OGFRP1 in endometrial cancer tissues and evaluated the influences of OGFRP1 dysregulation on the tumour cell biological processes of endometrial cancer cells. Further, the regulatory relationships between OGFRP1 and miR-124-3p, between miR-124-3p and Sirtuin1 (SIRT1) were, respectively, investigated. The interaction between OGFRP1 dysregulation and activation of PI3K/AKT/GSK-3β pathway was revealed by Western blotting. OGFRP1 was up-regulated in endometrial cancer tissues and cells. OGFRP1 suppression inhibited the malignant behaviour (inhibited cell viability, promoted cell apoptosis, and suppressed cell migration and invasion) of the Ishikawa cells via negatively regulating miR-124-3p. SIRT1 was a target gene of miR-124-3p, and miR-124-3p regulated tumour growth and metastasis by the down-stream signal of SIRT1. Moreover, suppression of OGFRP1 restrained the activation of PI3K/AKT/GSK-3β signals in the Ishikawa cells via miR-124-3p/SIRT1 axis. Our experiments revealed that upregulation of OGFRP1 may enhance the progression of endometrial cancer by regulating miR-124-3p/SIRT1 axis and by activating PI3K/AKT/GSK-3β pathway. OGFRP1 may be of significance in illustrating the biology of endometrial cancer.
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Affiliation(s)
- Yuqiong Lv
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Shaorong Chen
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Jingjing Wu
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Ruyin Lin
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Limei Zhou
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Guimin Chen
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Huiqing Chen
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
| | - Yumin Ke
- a Department of Gynaecology and Obstetrics, Second Affiliated Hospital of Fujian Medical University , Quanzhou , China
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18
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Njoku K, Chiasserini D, Whetton AD, Crosbie EJ. Proteomic Biomarkers for the Detection of Endometrial Cancer. Cancers (Basel) 2019; 11:cancers11101572. [PMID: 31623106 PMCID: PMC6826703 DOI: 10.3390/cancers11101572] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/07/2019] [Accepted: 10/11/2019] [Indexed: 01/01/2023] Open
Abstract
Endometrial cancer is the leading gynaecological malignancy in the western world and its incidence is rising in tandem with the global epidemic of obesity. Early diagnosis is key to improving survival, which at 5 years is less than 20% in advanced disease and over 90% in early-stage disease. As yet, there are no validated biological markers for its early detection. Advances in high-throughput technologies and machine learning techniques now offer unique and promising perspectives for biomarker discovery, especially through the integration of genomic, transcriptomic, proteomic, metabolomic and imaging data. Because the proteome closely mirrors the dynamic state of cells, tissues and organisms, proteomics has great potential to deliver clinically relevant biomarkers for cancer diagnosis. In this review, we present the current progress in endometrial cancer diagnostic biomarker discovery using proteomics. We describe the various mass spectrometry-based approaches and highlight the challenges inherent in biomarker discovery studies. We suggest novel strategies for endometrial cancer detection exploiting biologically important protein biomarkers and set the scene for future directions in endometrial cancer biomarker research.
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Affiliation(s)
- Kelechi Njoku
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, 5th Floor Research, St Mary's Hospital, Oxford Road, Manchester M13 9WL, UK.
- Department of Obstetrics and Gynaecology, Manchester Academic Health Science Centre, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK.
- Stoller Biomarker Discovery Centre, Institute of Cancer Sciences, Faculty of Medical and Human Sciences, University of Manchester, Manchester M13 9PL, UK.
| | - Davide Chiasserini
- Stoller Biomarker Discovery Centre, Institute of Cancer Sciences, Faculty of Medical and Human Sciences, University of Manchester, Manchester M13 9PL, UK.
| | - Anthony D Whetton
- Stoller Biomarker Discovery Centre, Institute of Cancer Sciences, Faculty of Medical and Human Sciences, University of Manchester, Manchester M13 9PL, UK.
| | - Emma J Crosbie
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, 5th Floor Research, St Mary's Hospital, Oxford Road, Manchester M13 9WL, UK.
- Department of Obstetrics and Gynaecology, Manchester Academic Health Science Centre, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK.
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19
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Jiang H, Li Y, Li J, Zhang X, Niu G, Chen S, Yao S. Long noncoding RNA LSINCT5 promotes endometrial carcinoma cell proliferation, cycle, and invasion by promoting the Wnt/β-catenin signaling pathway via HMGA2. Ther Adv Med Oncol 2019; 11:1758835919874649. [PMID: 31632465 PMCID: PMC6769207 DOI: 10.1177/1758835919874649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 08/13/2019] [Indexed: 12/14/2022] Open
Abstract
Background: A review of the evidence has indicated the critical role of long noncoding RNA (lncRNA) LSINCT5 in a large number of human cancers. However, the mechanistic involvement of LSINCT5 in endometrial carcinoma (EC) is still unknown. Here the authors aim to characterize the expression status of LSINCT5 and elucidate its mechanistic relevance to EC. Methods: Relative expression of LSINCT5 and HMGA2 were quantified by a real-time polymerase chain reaction. SiRNAs were employed to specifically knockdown endogenous LSINCT5 in EC cells. Cell proliferation was measured with Cell Count Kit-8 kit (CCK-8, Dojindo, Kumamoto, Japan) and cell growth was assessed by a colony formation assay. The cell cycle was analyzed with propidium iodide (PI) staining. Apoptotic cells were determined by flow cytometry after Annexin V/PI double-staining. Cell migration was evaluated by a wound-healing assay, and cell invasion was assessed using a transwell migration assay. The protein levels of HMGA2, Wnt3a, p-β-catenin, c-myc, β-actin, and GAPDH were determined by western blot. Results: The authors observed positively correlated and aberrantly up-regulated LSINCT5 and HMGA2 in EC. LSINCT5 deficiency significantly inhibited cell proliferation, cell cycle progression, and induced apoptosis. Meanwhile, cell migration and invasion were greatly compromised by the LSINCT5 knockdown. LSINCT5 stabilized HMGA2, which subsequently stimulated activation of Wnt/β-catenin signaling and consequently contributed to the oncogenic properties of LSINCT5 in EC. Conclusions: Our data uncovered the oncogenic activities and highlighted the mechanistic contributions of the LSINCT5-HMGA2-Wnt/β-catenin signaling pathway in EC.
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Affiliation(s)
- Hongye Jiang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yong Li
- Department of Gastroenterological Surgery, the First People's Hospital of Foshan, Foshan, Guangdong, China
| | - Jie Li
- Department of Obstetrics and Gynecology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuyu Zhang
- Department of Anesthesiology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Gang Niu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shuqin Chen
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Two Road, Yuexiu District, Guangzhou, Guangdong 510080, China
| | - Shuzhong Yao
- Department of Obstetrics and Gynecology, the First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Two Road, Yuexiu District, Guangzhou, Guangdong 510080, China
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20
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Dai X, Kaushik AC, Zhang J. The Emerging Role of Major Regulatory RNAs in Cancer Control. Front Oncol 2019; 9:920. [PMID: 31608229 PMCID: PMC6771296 DOI: 10.3389/fonc.2019.00920] [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: 07/21/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022] Open
Abstract
Alterations and personal variations of RNA interactions have been mechanistically coupled with disease etiology and phenotypical variations. RNA biomarkers, RNA mimics, and RNA antagonists have been developed for diagnostic, prognostic, and therapeutic uses. Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are two major types of RNA molecules with regulatory roles, deregulation of which has been implicated in the initiation and progression of many human malignancies. Accumulating evidence indicated the clinical roles of regulatory RNAs in cancer control, stimulating a surge in exploring the functionalities of regulatory RNAs for improved understanding on disease pathogenesis and management. In this review, we highlight the critical roles of lncRNAs and miRNAs played in tumorigenesis, scrutinize their potential functionalities as diagnostic/prognostic biomarkers and/or therapeutic targets in clinics, outline opportunities that ncRNAs may bring to complement current clinical practice for improved cancer management and identify challenges faced by translating frontier knowledge on non-coding RNAs (ncRNAs) to bedside clinics as well as possible solutions.
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Affiliation(s)
- Xiaofeng Dai
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Aman Chandra Kaushik
- Wuxi School of Medicine, Jiangnan University, Wuxi, China.,School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Jianying Zhang
- Henan Key Laboratory of Tumor Epidemiology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
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Huang T, Wang M, Huang B, Chang A, Liu F, Zhang Y, Jiang B. Long noncoding RNAs in the mTOR signaling network: biomarkers and therapeutic targets. Apoptosis 2019; 23:255-264. [PMID: 29556906 DOI: 10.1007/s10495-018-1453-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
As an evolutionarily conserved serine/threonine kinase of the phosphoinositide 3-kinase (PI3K) related kinase family, the mechanistic/mammalian target of rapamycin (mTOR) plays vital roles in the PI3K/AKT/mTOR pathway, participating in different cellular processes including cell survival, metabolism and proliferation. Aberrant activity of this signaling pathway may lead to oncogenesis. Over the last two decades, great progress has been made in the understanding of mTOR activation and how its response is counteracted for maintaining tissue homeostasis. Besides regulatory proteins and microRNAs, long noncoding RNA (lncRNA) is another emerging critical layer of the intricate modulatory architecture for the control of the mTOR signaling circuit. Also, the production of numerous lncRNAs is induced by mTOR treatment. These findings offer new perspectives for designing novel diagnostic and therapeutic strategies. In this review, we summarize the interactions between the mTOR signaling pathway and lncRNAs in the development and progression of various types of tumors, focusing on the mechanisms of these interactions, and also discuss the potential use of lncRNAs as biomarkers and therapeutic targets for malignancies.
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Affiliation(s)
- Tinglei Huang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Meiling Wang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Bo Huang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Augustus Chang
- Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA
| | - Feng Liu
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Yanjie Zhang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China.
| | - Bin Jiang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China.
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22
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Xu DH, Chi GN, Zhao CH, Li DY. Retracted: Long noncoding RNA MEG3 inhibits proliferation and migration but induces autophagy by regulation of Sirt7 and PI3K/AKT/mTOR pathway in glioma cells. J Cell Biochem 2019; 120:7516-7526. [PMID: 30417553 DOI: 10.1002/jcb.28026] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 10/15/2018] [Indexed: 02/02/2023]
Abstract
Glioma is a common primary brain tumor with high mortality rate and poor prognosis. Long noncoding RNA maternally expressed gene 3 (MEG3) is a tumor suppressor in diverse cancer types. However, the role of MEG3 in glioma remains unclear. We aimed to explore the effects of MEG3 on U251 cells as well as the underlying mechanisms. U251 cells were stably transfected with different recombined plasmids to overexpress or silence MEG3. Effects of aberrantly expressed MEG3 on cell viability, migration, apoptosis, expressions of apoptosis-associated and autophagy-associated proteins, and phosphorylated levels of key kinases in the PI3K/AKT/mTOR pathway were all evaluated. Then, messenger RNA (mRNA) and protein expression of Sirt7 in cells abnormally expressing MEG3 were estimated. In addition, effects of abnormally expressed MEG3 and Sirt7 on U251 cells were determined to reveal the underlying mechanism of MEG3-associated modulation. Cell viability and migration were significantly reduced by MEG3 overexpression whereas cell apoptosis as well as Bax and cleaved caspase-3/-9 proteins were obviously induced. Beclin-1 and LC3-II/LC3-I were upregulated and p62 was downregulated in MEG3 overexpressed cells. In addition, the autophagy pharmacological inhibitor (3-methyladenine, 3-MA) affected the effect of MEG3 overexpression on cell proliferation. Furthermore, the phosphorylated levels of key kinases in the PI3K/AKT/mTOR pathway were all reduced by MEG3 overexpression. Sirt7 was positively regulated by MEG3 expression, and effects of MEG3 overexpression on U251 cells were ameliorated by Sirt7 silence. MEG3 suppressed cell proliferation and migration but promoted autophagy in U251 cells through positively regulating Sirt7, involving in the inhibition of the PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Dong-Hui Xu
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Guo-Nan Chi
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Cong-Hai Zhao
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Dong-Yuan Li
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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Dai J, Mu JW, Mu H. Long non-coding RNA CRNDE regulates cell proliferation, migration, invasion, epithelial-mesenchymal transition and apoptosis in oral squamous cell carcinoma. Oncol Lett 2019; 17:3330-3340. [PMID: 30867767 PMCID: PMC6396137 DOI: 10.3892/ol.2019.9978] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 10/17/2018] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to investigate whether the long non-coding RNA (lncRNA) colorectal neoplasia differentially expressed (CRNDE) can promote the migration and invasion of human oral squamous cell carcinoma (OSCC) cells via the regulation of epithelial-mesenchymal transition (EMT). CAL-27 and SCC-15 cells were classified into a control group, a small interfering negative control (si-NC) group (cells transfected with control siRNA) and an si-CRNDE group (cells transfected with CRNDE siRNA). The expression of CRNDE in OSCC tissues and cell lines was detected by in situ hybridization (ISH) and reverse transcription-quantitative polymerase chain reaction. An MTT assay was used to detect cell proliferation, flow cytometry was performed to determine cell apoptosis, wound-healing and Transwell assays were conducted to evaluate cell metastasis, and immunofluorescence staining and western blotting were performed to measure the expression of proteins associated with EMT. Tumor-bearing mouse models were established, and the tumor volumes were recorded. An immunohistochemical assay was performed to determine the expression of EMT-related proteins. CRNDE expression was increased in OSCC tissues and cell lines compared with that in normal tissues and cell lines. Compared with the control group, the si-CRNDE group displayed a reduction in the expression of CRNDE, in the proliferation, migration and invasion of cells, in the protein expression of N-cadherin, vimentin and Snail, and in the expression of proteins in the Wnt/β-catenin pathway. However, an increase was displayed in the apoptosis of cells and the expression of E-cadherin. Compared with the control group of tumor-bearing nude mice, the sh-CRNDE group demonstrated slowed tumor growth, reduced tumor weight and elevated E-cadherin, as well as reduced expression of N-cadherin, vimentin and Snail. In conclusion, silencing CRNDE may inhibit EMT, thus decreasing the migration and invasion of human OSCC cells by repressing the activation of the Wnt/β-catenin signaling pathway, thereby restricting cell growth and promoting cell apoptosis.
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Affiliation(s)
- Jing Dai
- Department of Stomatology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Jing-Wen Mu
- Department of Stomatology, Dongfang Hospital Beijing University of Chinese Medicine, Beijing 100078, P.R. China
| | - Hong Mu
- Department of Stomatology, Dongfang Hospital Beijing University of Chinese Medicine, Beijing 100078, P.R. China
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Xia B, Wang L, Feng L, Tian B, Tan Y, Du B. Knockdown of Long Noncoding RNA CAT104 Inhibits the Proliferation, Migration, and Invasion of Human Osteosarcoma Cells by Regulating MicroRNA-381. Oncol Res 2018; 27:89-98. [PMID: 29523223 PMCID: PMC7848448 DOI: 10.3727/096504018x15199511344806] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Osteosarcoma is the most common primary malignant bone tumor in children and adolescents. This study aimed to explore the effects of long noncoding RNA CAT104 and microRNA-381 (miR-381) on osteosarcoma cell proliferation, migration, invasion, and apoptosis, as well as the underlying potential mechanism. We found that CAT104 was highly expressed in osteosarcoma MG63 and OS-732 cells. Knockdown of CAT104 significantly inhibited OS-732 cell proliferation, migration, and invasion, but promoted cell apoptosis. CAT104 regulated the expression of miR-381, and miR-381 participated in the effects of CAT104 on OS-732 cells. Zinc finger E-box-binding homeobox 1 (ZEB1) was a direct target gene of miR-381, which was involved in the regulatory roles of miR-381 in OS-732 cell proliferation, migration, invasion, and apoptosis, as well as c-Jun N-terminal kinase (JNK) and Wnt/β-catenin pathways. In conclusion, our research verified that suppression of CAT104 exerted significant inhibitory effects on osteosarcoma cell proliferation, migration, and invasion by regulating the expression of miR-381 and downstream ZEB1, as well as JNK and Wnt/β-catenin pathways.
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Affiliation(s)
- Bo Xia
- *Department of Emergency Trauma Surgery, Jining No. 1 People’s Hospital, Jining, Shandong, P.R. China
| | - Lei Wang
- †Second Department of Orthopedics, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, P.R. China
| | - Li Feng
- *Department of Emergency Trauma Surgery, Jining No. 1 People’s Hospital, Jining, Shandong, P.R. China
| | - Baofang Tian
- *Department of Emergency Trauma Surgery, Jining No. 1 People’s Hospital, Jining, Shandong, P.R. China
| | - Yuanjie Tan
- ‡Department of Cardiology, Weihai Hospital of Traditional Chinese Medicine, Weihai, Shandong, P.R. China
| | - Baoyin Du
- *Department of Emergency Trauma Surgery, Jining No. 1 People’s Hospital, Jining, Shandong, P.R. China
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Dual functions for OVAAL in initiation of RAF/MEK/ERK prosurvival signals and evasion of p27-mediated cellular senescence. Proc Natl Acad Sci U S A 2018; 115:E11661-E11670. [PMID: 30478051 PMCID: PMC6294934 DOI: 10.1073/pnas.1805950115] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Here, we report that the long noncoding RNA (lncRNA) ovarian adenocarcinoma-amplified lncRNA (OVAAL) is a mediator of cancer cell resistance, counteracting the effects of apoptosis-inducing agents acting through both the extrinsic and intrinsic pathways. Building upon previous reports associating OVAAL amplification with ovarian and endometrial cancers, we now show that OVAAL overexpression occurs during the pathogenesis of colorectal cancer and melanoma. Mechanistically, our findings also establish that OVAAL expression more generally contributes a prosurvival role to cancer cells under steady-state conditions. OVAAL accomplishes these actions utilizing distinct functional modalities: one promoting activation of RAF/MEK/ERK signaling and the other blocking cell entry into senescence. Our study demonstrates that expression of a single OVAAL in cancer cells drives two distinct but coordinated actions contributing to cancer pathology. Long noncoding RNAs (lncRNAs) function through a diverse array of mechanisms that are not presently fully understood. Here, we sought to find lncRNAs differentially regulated in cancer cells resistant to either TNF-related apoptosis-inducing ligand (TRAIL) or the Mcl-1 inhibitor UMI-77, agents that act through the extrinsic and intrinsic apoptotic pathways, respectively. This work identified a commonly up-regulated lncRNA, ovarian adenocarcinoma-amplified lncRNA (OVAAL), that conferred apoptotic resistance in multiple cancer types. Analysis of clinical samples revealed OVAAL expression was significantly increased in colorectal cancers and melanoma in comparison to the corresponding normal tissues. Functional investigations showed that OVAAL depletion significantly inhibited cancer cell proliferation and retarded tumor xenograft growth. Mechanically, OVAAL physically interacted with serine/threonine-protein kinase 3 (STK3), which, in turn, enhanced the binding between STK3 and Raf-1. The ternary complex OVAAL/STK3/Raf-1 enhanced the activation of the RAF protooncogene serine/threonine-protein kinase (RAF)/mitogen-activated protein kinase kinase 1 (MEK)/ERK signaling cascade, thus promoting c-Myc–mediated cell proliferation and Mcl-1–mediated cell survival. On the other hand, depletion of OVAAL triggered cellular senescence through polypyrimidine tract-binding protein 1 (PTBP1)–mediated p27 expression, which was regulated by competitive binding between OVAAL and p27 mRNA to PTBP1. Additionally, c-Myc was demonstrated to drive OVAAL transcription, indicating a positive feedback loop between c-Myc and OVAAL in controlling tumor growth. Taken together, these results reveal that OVAAL contributes to the survival of cancer cells through dual mechanisms controlling RAF/MEK/ERK signaling and p27-mediated cell senescence.
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Zhang X, Xu Y, Fu L, Li D, Dai X, Liu L, Zhang J, Zheng L, Cui M. Identification of mRNAs related to endometrium function regulated by lncRNA CD36-005 in rat endometrial stromal cells. Reprod Biol Endocrinol 2018; 16:96. [PMID: 30322386 PMCID: PMC6190555 DOI: 10.1186/s12958-018-0412-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/25/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a heterogeneous endocrine disorder in women of reproductive age and is commonly complicated by adverse endometrial outcomes. Long non-coding RNAs (lncRNAs) are a class of non-protein-coding transcripts that are more than 200 nucleotides in length. Accumulating evidence indicates that lncRNAs are involved in the development of various human diseases. Among these lncRNAs, lncRNA CD36-005 (CD36-005) is indicated to be associated with the pathogenesis of PCOS. However, the mechanisms of action of CD36-005 have not yet been elucidated. METHODS This study determined the CD36-005 expression level in the uteri of PCOS rat model and its effect on the proliferation activity of rat primary endometrial stromal cells. RNA sequencing (RNA-seq) and bioinformatics analysis were performed to detect the mRNA expression profiles and the biological pathways in which these differentially expressed mRNAs involved, after CD36-005 overexpression in the primary endometrial stromal cells. The differential expression of Hmgn5, Nr5a2, Dll4, Entpd1, Fam50a, and Brms1 were further validated by quantitative reverse transcription polymerase chain reaction (qRT-PCR). RESULTS CD36-005 is highly expressed in the uteri of PCOS rat model and promotes the proliferation of rat primary endometrial stromal cells. A total of fifty-five mRNAs differentially expressed were identified in CD36-005 overexpressed stromal cells. Further analyses identified that these differentially expressed mRNAs participate in many biological processes and are associated with various human diseases. The results of qRT-PCR validation were consistent with the RNA-seq data. CONCLUSIONS These data provide a list of potential target mRNA genes of CD36-005 in endometrial stromal cells and laid a foundation for further studies on the molecular function and mechanism of CD36-005 in the endometrium.
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Affiliation(s)
- Xueying Zhang
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Ying Xu
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Lulu Fu
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Dandan Li
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Xiaowei Dai
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Lianlian Liu
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Jingshun Zhang
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Lianwen Zheng
- grid.452829.0Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
| | - Manhua Cui
- grid.452829.0Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, No. 218 Ziqiang Street, Changchun, 130041 Jilin China
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Yu H, Rong L. Emerging role of long non-coding RNA in the development of gastric cancer. World J Gastrointest Oncol 2018; 10:260-270. [PMID: 30254721 PMCID: PMC6147769 DOI: 10.4251/wjgo.v10.i9.260] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/14/2018] [Accepted: 06/27/2018] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer is a common, worldwide malignancy and has a poor prognosis due to late diagnosis. Long non-coding RNAs (lncRNAs) are a significant subtype of RNA molecules with a length longer than 200 nucleotides (nt) that rarely encode proteins. In recent decades, deregulation of lncRNAs has been shown to be involved in tumorigenesis and tumor progression in various human carcinomas, including gastric cancer. Accumulating evidence has shown that some lncRNAs may function as diagnostic biomarkers or therapeutic targets for gastric cancer. Thus, exploring the specific functions of lncRNAs will help both gain a better understanding of the pathogenesis and develop novel treatments for gastric cancer. In this review, we highlight the expression and functional roles of lncRNAs in gastric cancer, and analyze the potential applications of lncRNAs as diagnostic markers and therapeutic targets.
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Affiliation(s)
- Hang Yu
- Department of Endoscopic Center, Peking University First Hospital, Beijing 100034, China
| | - Long Rong
- Department of Endoscopic Center, Peking University First Hospital, Beijing 100034, China
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Guo CC, Jiao CH, Gao ZM. Silencing of LncRNA BDNF-AS attenuates Aβ 25-35-induced neurotoxicity in PC12 cells by suppressing cell apoptosis and oxidative stress. Neurol Res 2018; 40:795-804. [PMID: 29902125 DOI: 10.1080/01616412.2018.1480921] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To explore the effects of long non-coding RNA (lncRNA) brain-derived neurotrophic factor anti-sense (BDNF-AS) on the Aβ25-35-induced neurotoxicity in PC12 cells. METHODS PC12 cells were induced by Aβ25-35 to construct cell injury models of Alzheimer's disease (AD), and then transfected with siRNA-BDNF-AS. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to detect the expressions of BDNF-AS and BDNF. Besides, 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Hoechst33342 staining were utilized to analyze the cell viability and apoptosis, respectively, Western blotting to evaluate the protein expressions, immunofluorescence to assess the Cytochrome C (Cyt C) release, and Rhodamine 123 (Rh123) to measure the mitochondrial membrane potential (MMP).The evaluation of oxidative stress was conducted via the determination of the levels of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT). RESULTS Aβ25-35 apparently increased BDNF-AS but decreased BDNF in PC12 cells, which also reduced viability and induced apoptosis of PC12 cells. Silencing of BDNF-AS could significantly up-regulate BDNF in Aβ25-35-induced PC12 cells, with the elevated cell viability. Moreover, silencing BDNF-AS inhibited the apoptosis of Aβ25-35-induced PC12 cells, suppressed the release of Cyt C, reduced the expression of cleaved caspase-3 and Bax, and lowered the mean fluorescence intensity (MFI) of Rh123, but it elevated the expression of Bcl-2. Besides, silencing BDNF-AS also reduced ROS intensity and MDA content, but enhanced the activities of SOD and CAT. CONCLUSION Silencing BDNF-AS exerts protective functions to increase the viability, inhibit the apoptosis and oxidative stress of Aβ25-35-induced PC12 cells by negative regulation of BDNF. ABBREVIATIONS Aβ25-35: amyloid beta peptide 25-35; AD: Alzheimer's disease; LncRNA BDNF-AS: long non-coding RNA brain-derived neurotrophic factor anti-sense; OS: Oxidative stress.
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Affiliation(s)
- Cong-Cong Guo
- a Department of rehabilitation , The People's Hospital of Zhangqiu , Ji'nan , China
| | - Chun-Hong Jiao
- a Department of rehabilitation , The People's Hospital of Zhangqiu , Ji'nan , China
| | - Zhen-Mei Gao
- b Department of rehabilitation , Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan , China
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Thin KZ, Liu X, Feng X, Raveendran S, Tu JC. LncRNA-DANCR: A valuable cancer related long non-coding RNA for human cancers. Pathol Res Pract 2018; 214:801-805. [PMID: 29728310 DOI: 10.1016/j.prp.2018.04.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/09/2018] [Accepted: 04/12/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Long noncoding RNAs (lncRNA) are a type of noncoding RNA that comprise of longer than 200 nucleotides sequences. They can regulate chromosome structure, gene expression and play an essential role in the pathophysiology of human diseases, especially in tumorigenesis and progression. Nowadays, they are being targeted as potential biomarkers for various cancer types. And many research studies have proven that lncRNAs might bring a new era to cancer diagnosis and support treatment management. The purpose of this review was to inspect the molecular mechanism and clinical significance of long non-coding RNA- differentiation antagonizing nonprotein coding RNA(DANCR) in various types of human cancers. MATERIALS AND METHODS In this review, we summarize and figure out recent research studies concerning the expression and biological mechanisms of lncRNA-DANCR in tumour development. The related studies were obtained through a systematic search of PubMed, Embase and Cochrane Library. RESULTS Long non-coding RNAs-DANCR is a valuable cancer-related lncRNA that its dysregulated expression was found in a variety of malignancies, including hepatocellular carcinoma, breast cancer, glioma, colorectal cancer, gastric cancer, and lung cancer. The aberrant expressions of DANCR have been shown to contribute to proliferation, migration and invasion of cancer cells. CONCLUSIONS Long non-coding RNAs-DANCR likely serves as a useful disease biomarker or therapeutic cancer target.
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Affiliation(s)
- Khaing Zar Thin
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Xuefang Liu
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiaobo Feng
- Department of Pain Management, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Sudheesh Raveendran
- Department of Radiology & Nuclear Medicine, Zhongnan Hospital of Wuhan University, Wuchang, Hubei Province, Wuhan, 430071, China
| | - Jian Cheng Tu
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
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Klinge CM. Non-coding RNAs: long non-coding RNAs and microRNAs in endocrine-related cancers. Endocr Relat Cancer 2018; 25:R259-R282. [PMID: 29440232 DOI: 10.1530/erc-17-0548] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/12/2018] [Indexed: 12/11/2022]
Abstract
The human genome is 'pervasively transcribed' leading to a complex array of non-coding RNAs (ncRNAs) that far outnumber coding mRNAs. ncRNAs have regulatory roles in transcription and post-transcriptional processes as well numerous cellular functions that remain to be fully described. Best characterized of the 'expanding universe' of ncRNAs are the ~22 nucleotide microRNAs (miRNAs) that base-pair to target mRNA's 3' untranslated region within the RNA-induced silencing complex (RISC) and block translation and may stimulate mRNA transcript degradation. Long non-coding RNAs (lncRNAs) are classified as >200 nucleotides in length, but range up to several kb and are heterogeneous in genomic origin and function. lncRNAs fold into structures that interact with DNA, RNA and proteins to regulate chromatin dynamics, protein complex assembly, transcription, telomere biology and splicing. Some lncRNAs act as sponges for miRNAs and decoys for proteins. Nuclear-encoded lncRNAs can be taken up by mitochondria and lncRNAs are transcribed from mtDNA. Both miRNAs and lncRNAs are dysregulated in endocrine cancers. This review provides an overview on the current understanding of the regulation and function of selected lncRNAs and miRNAs, and their interaction, in endocrine-related cancers: breast, prostate, endometrial and thyroid.
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Chen BJ, Byrne FL, Takenaka K, Modesitt SC, Olzomer EM, Mills JD, Farrell R, Hoehn KL, Janitz M. Transcriptome landscape of long intergenic non-coding RNAs in endometrial cancer. Gynecol Oncol 2017; 147:654-662. [DOI: 10.1016/j.ygyno.2017.10.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/07/2017] [Accepted: 10/03/2017] [Indexed: 12/27/2022]
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Dong D, Mu Z, Wang W, Xin N, Song X, Shao Y, Zhao C. Prognostic value of long noncoding RNA ZFAS1 in various carcinomas: a meta-analysis. Oncotarget 2017; 8:84497-84505. [PMID: 29137442 PMCID: PMC5663614 DOI: 10.18632/oncotarget.21100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 08/28/2017] [Indexed: 12/24/2022] Open
Abstract
A number of studies have revealed that zinc finger antisense 1 (ZFAS1), a long noncoding RNA (lncRNA), is aberrantly regulated in various cancers, and high ZFAS1 expression is associated with poor prognosis and increased risk of lymph node metastasis (LNM). This meta-analysis was conducted to identify the potential value of ZFAS1 as a biomarker for cancer prognosis. We searched electronic database PubMed, Web of Science, and China Wanfang Data (up to June 1, 2017) to collect all relevant studies and explore the association of ZFAS1 expression with overall survival (OS) and LNM. The results showed that cancer patients with high ZFAS1 expression had a worse OS than those with low ZFAS1 expression (HR: 1.94, 95% confidence interval [CI]: 1.41–2.47, P < 0.001), and high ZFAS1 expression was significantly associated with LNM (OR: 2.60, 95% CI: 1.54–4.42, P < 0.001). Subgroup analysis revealed that high ZFAS1 expression was significantly related to high incidence of LNM in subgroups of sample size more than 88 (OR: 3.16, 95% CI: 2.06–4.86, P < 0.001), non-digestive system malignancies (OR: 4.05, 95% CI: 2.49–6.60, P < 0.001), and studies reported in 2017 (OR: 4.86, 95% CI: 2.67–8.84, P < 0.001) without significant heterogeneity. Further meta-regression by the covariates showed that tumor type, sample size, quality score, cut off value and publication year did not result in the inter-study heterogeneity. In conclusion, the present meta-analysis demonstrates that high ZFAS1 expression may potentially serve as a reliable biomarker for poor clinical outcome in various cancers.
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Affiliation(s)
- Dan Dong
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Zhongyi Mu
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China.,Department of Urology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, People's Republic of China
| | - Wei Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Na Xin
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Xiaowen Song
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Yue Shao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
| | - Chenghai Zhao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, People's Republic of China
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Niu ZS, Niu XJ, Wang WH. Long non-coding RNAs in hepatocellular carcinoma: Potential roles and clinical implications. World J Gastroenterol 2017; 23:5860-5874. [PMID: 28932078 PMCID: PMC5583571 DOI: 10.3748/wjg.v23.i32.5860] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 05/10/2017] [Accepted: 07/24/2017] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are a subgroup of non-coding RNA transcripts greater than 200 nucleotides in length with little or no protein-coding potential. Emerging evidence indicates that lncRNAs may play important regulatory roles in the pathogenesis and progression of human cancers, including hepatocellular carcinoma (HCC). Certain lncRNAs may be used as diagnostic or prognostic markers for HCC, a serious malignancy with increasing morbidity and high mortality rates worldwide. Therefore, elucidating the functional roles of lncRNAs in tumors can contribute to a better understanding of the molecular mechanisms of HCC and may help in developing novel therapeutic targets. In this review, we summarize the recent progress regarding the functional roles of lncRNAs in HCC and explore their clinical implications as diagnostic or prognostic biomarkers and molecular therapeutic targets for HCC.
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MESH Headings
- Antineoplastic Agents/therapeutic use
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinogenesis/genetics
- Carcinoma, Hepatocellular/diagnosis
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/mortality
- Disease Progression
- Early Detection of Cancer/methods
- Epigenesis, Genetic
- Gene Expression Regulation, Neoplastic
- Humans
- Liver Neoplasms/diagnosis
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/mortality
- Molecular Targeted Therapy/methods
- Prognosis
- RNA, Long Noncoding/analysis
- RNA, Long Noncoding/antagonists & inhibitors
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
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Affiliation(s)
- Zhao-Shan Niu
- Laboratory of Micromorphology, School of Basic Medicine, Medical Department of Qingdao University, Qingdao 266071, Shandong Province, China
| | - Xiao-Jun Niu
- Oncology Specialty, Medical Department of Qingdao University, Qingdao 266071, Shandong Province, China
| | - Wen-Hong Wang
- Department of Pathology, School of Basic Medicine, Medical Department of Qingdao University, Qingdao 266071, Shandong Province, China
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Bergmann C, Distler JHW. Epigenetic factors as drivers of fibrosis in systemic sclerosis. Epigenomics 2017; 9:463-477. [DOI: 10.2217/epi-2016-0150] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Prolonged activation of fibroblasts is a central hallmark of fibrosing disorders such as systemic sclerosis (SSc). Fibroblasts are the key effector cells. They differentiate into an activated myofibroblast phenotype. In contrast to normal wound healing with transient activation, myofibroblasts persist in fibrosing disorders. Current hypothesis suggests that profibrotic cytokines might trigger epigenetic changes which contribute to the persistently activated fibroblast phenotype. In the last years, several epigenetic alterations have been described in SSc and have been linked to different pathogenic aspects of the disease, in particular to aberrant fibroblast activation and tissue fibrosis, but also to vascular manifestations and inflammation. The focus of this review is the current knowledge on epigenetic changes in fibroblast activation in SSc.
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Affiliation(s)
- Christina Bergmann
- Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany
| | - Jörg HW Distler
- Department of Internal Medicine 3, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany
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Xi J, Feng J, Li Q, Li X, Zeng S. The long non-coding RNA lncFOXO1 suppresses growth of human breast cancer cells through association with BAP1. Int J Oncol 2017; 50:1663-1670. [PMID: 28339037 DOI: 10.3892/ijo.2017.3933] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/06/2017] [Indexed: 11/06/2022] Open
Abstract
Breast cancer, one of the common cancers of women, is the leading cause of death among women below the age of 50 years in western countries. Long non-coding RNAs (lncRNAs) have been shown to be involved in diverse biological processes, both physical and pathological. However, to date, only a few lncRNAs have been functionally identified in breast cancer, and the overall pathophysiological contributions of lncRNAs to breast cancer remain largely unknown. In the present study, we identified a novel lncRNA termed lncFOXO1 through microarray screening. lncFOXO1 is significantly decreased in breast cancer tissues and cell lines and downregulation of lncFOXO1 expression associates with poorer overall survival. Functional assays demonstrated its suppressive role in breast cancer in vivo and in vitro. Mechanistically, lncFOXO1 suppressed the growth of breast cancer by increasing FOXO1 transcription. Moreover, we found that lncFOXO1 associated with BRCA-1-associated protein 1 (BAP1) and regulates its binding and the level of mono-ubiquitinated H2A at K119 (ubH2AK119) at FOXO1 promoter.
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Affiliation(s)
- Jie Xi
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Heibei 061001, P.R. China
| | - Jing Feng
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Heibei 061001, P.R. China
| | - Qian Li
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Heibei 061001, P.R. China
| | - Xia Li
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Heibei 061001, P.R. China
| | - Saitian Zeng
- Department of Gynecology, Cangzhou Central Hospital, Cangzhou, Heibei 061001, P.R. China
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Jing X, Liang H, Cui X, Han C, Hao C, Huo K. Long noncoding RNA CCAT2 can predict metastasis and a poor prognosis: A meta-analysis. Clin Chim Acta 2017; 468:159-165. [PMID: 28263738 DOI: 10.1016/j.cca.2017.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Colon cancer associated transcript 2 (CCAT2), a novel long non-coding RNA (lncRNA), plays a key role in tumorigenesis. This meta-analysis systematically summarizes the relationship between CCAT2 and cancers. METHODS A comprehensive, computerized literature search was conducted in PubMed, Cochrane library, Chinese National Knowledge Infrastructure, and Chinese Wan Fang database. Odds ratios (ORs), hazard ratios (HRs) and their 95% confidence interval (95% CI) were calculated to assess the effect size. A total of 9 studies were enrolled in this meta-analysis, which was performed by Revman5.3 software and Stata12.0. RESULTS Our meta-analysis indicates that patients with elevated expression of CCAT2 are prone to developing distant metastasis (DM) (OR=12.42; 95% CI=5.77-26.74; P < 0.00001), which is associated with a tendency for lymph nodes metastasis (LNM) (OR=3.60 95% CI=1.65-7.87, P=0.001). Further analyses reveal that patients with high CCAT2 expression have poorer overall survival (OS) (HR=1.53, 95% CI=1.15-2.02, P=0.003, random-effects) and progression-free survival (PFS) (HR=2.88, 95% CI=1.81-4.56, P < 0.00001, fixed-effects). CONCLUSIONS Therefore, CCAT2 may be a potential novel biomarker for indicating clinical outcomes of human cancers.
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Affiliation(s)
- Xuan Jing
- Department of Clinical Laboratory, Shanxi Provincial People's Hospital, Affiliate of Shanxi Medical University, 29 Shuangta Road, Taiyuan 030012, China
| | - Hongping Liang
- Department of Clinical Laboratory, Shanxi Provincial People's Hospital, Affiliate of Shanxi Medical University, 29 Shuangta Road, Taiyuan 030012, China
| | - Xiangrong Cui
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women, Health Center of Shanxi, Taiyuan, Shanxi 030000, China; Department of Clinical Laboratory, The Central Hospital of Linfen, Affiliate of Shanxi Medical University, 101 Pingyang North Street, Linfen 04100, China.
| | - Chongyang Han
- Department of Clinical Laboratory, Shanxi Provincial People's Hospital, Affiliate of Shanxi Medical University, 29 Shuangta Road, Taiyuan 030012, China
| | - Chonghua Hao
- Department of Clinical Laboratory, Shanxi Provincial People's Hospital, Affiliate of Shanxi Medical University, 29 Shuangta Road, Taiyuan 030012, China
| | - Kai Huo
- Department of neurosurgery, Shanxi Provincial Tumor Hospital, 3 Staff Village, Taiuan, Shanxi 030000, China
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