1
|
Yang R, Chen Z, Ao S, Liang L, Chen Z, Duan X, Zeng G, Deng T. LncRNA MAGI2-AS3 inhibites tumor progression by up-regulating STAM via interacting with miR-142-3p in clear cell renal cell carcinoma. Cell Signal 2024; 113:110954. [PMID: 38084836 DOI: 10.1016/j.cellsig.2023.110954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 12/18/2023]
Abstract
Revealing the role of non-coding RNAs (ncRNAs) in inducing dysregulated pathological responses to external signals may identify therapeutic targets for inhibiting the progression of clear cell renal cell carcinoma (ccRCC). Non-coding RNAs belong to a class of RNA molecules that do not encode proteins but possess diverse biological functions, playing essential roles in the occurrence and development of metastatic and proliferative tumors. To investigate the impact of the upstream interaction between miR-142-3p and lncRNA MAGI2-AS3 on the tumor-suppressive activity of the STAM gene, we firstly conducted bioinformatics analysis to predict the upstream miRNAs of STAM and the upstream lncRNAs of the miRNAs through online databases (miRanda, miRDB, TargetScan, LncBase v2), which were further validated by the starBasev2.0 database. Subsequently, multiple experimental techniques were employed to validate these findings, including RT-qPCR, Western blotting, measurement of cellular functional activity, and luciferase reporter assays. Through these experimental methods, we provided compelling evidence regarding the role of miR-142-3p and MAGI2-AS3 in regulating STAM gene expression and functionality, revealing their potential significance in tumor suppression. Our research demonstrates the importance of the MAGI2-AS3/miR-142-3p/STAM signaling pathway axis in ccRCC. MAGI2-AS3 competes for binding with miR-142-3p, resulting in upregulated STAM gene expression. This upregulation inhibits tumor proliferation and metastasis in ccRCC cells. Conversely, overexpression of miR-142-3p or silencing of MAGI2-AS3 promotes tumor behavior, while downregulation of miR-142-3p inhibits the development of ccRCC. Targeting the MAGI2-AS3/miR-142-3p/STAM axis holds promise as a therapeutic strategy for ccRCC treatment.
Collapse
Affiliation(s)
- Riwei Yang
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Zude Chen
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Shan Ao
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Leqi Liang
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Zugen Chen
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Xiaolu Duan
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Guohua Zeng
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China
| | - Tuo Deng
- Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province 510000, China.
| |
Collapse
|
2
|
Chen Z, Zhou J, Liu Y, Ni H, Zhou B. Targeting MAGI2-AS3-modulated Akt-dependent ATP-binding cassette transporters as a possible strategy to reverse temozolomide resistance in temozolomide-resistant glioblastoma cells. Drug Dev Res 2023; 84:1482-1495. [PMID: 37551766 DOI: 10.1002/ddr.22101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023]
Abstract
Drug resistance is a major impediment to the successful treatment of glioma. This study aimed to elucidate the effects and mechanisms of the long noncoding RNA membrane-associated guanylate kinase inverted-2 antisense RNA 3 (MAGI2-AS3) on temozolomide (TMZ) resistance in glioma cells. MAGI2-AS3 expression in TMZ-resistant glioblastoma (GBM) cells was analyzed using the Gene Expression Omnibus data set GSE113510 and quantitative real-time PCR (qRT-PCR). Cell viability and TMZ half-maximal inhibitory concentration values were determined using the MTT assay. Apoptosis and cell cycle distribution were evaluated using flow cytometry. The expression of multidrug resistance 1 (MDR1), ATP-binding cassette superfamily G member 2 (ABCG2), protein kinase B (Akt), and phosphorylated Akt was detected using qRT-PCR and/or western blot analysis. MAGI2-AS3 was expressed at low levels in TMZ-resistant GBM cells relative to that in their parental cells. MAGI2-AS3 re-expression alleviated TMZ resistance in TMZ-resistant GBM cells. MAGI2-AS3 overexpression also accelerated TMZ-induced apoptosis and G2/M phase arrest. Mechanistically, MAGI2-AS3 overexpression reduced MDR1 and ABCG2 expression and inhibited the Akt pathway, whereas Akt overexpression abrogated the reduction in MDR1 and ABCG2 expression induced by MAGI2-AS3. Moreover, activation of the Akt pathway inhibited the effects of MAGI2-AS3 on TMZ resistance. MAGI2-AS3 inhibited tumor growth and enhanced the suppressive effect of TMZ on glioma tumorigenesis in vivo. In conclusion, MAGI2-AS3 reverses TMZ resistance in glioma cells by inactivating the Akt pathway.
Collapse
Affiliation(s)
- Zhongjun Chen
- Department of Neurosurgery, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Jingmin Zhou
- Emergency Department, The Fifth People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Yu Liu
- Department of Neurosurgery, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Hongzao Ni
- Department of Neurosurgery, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, Jiangsu, China
| | - Botao Zhou
- Department of Neurosurgery, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| |
Collapse
|
3
|
Liu Z, Yan W, Liu S, Liu Z, Xu P, Fang W. Regulatory network and targeted interventions for CCDC family in tumor pathogenesis. Cancer Lett 2023; 565:216225. [PMID: 37182638 DOI: 10.1016/j.canlet.2023.216225] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 05/16/2023]
Abstract
CCDC (coiled-coil domain-containing) is a coiled helix domain that exists in natural proteins. There are about 180 CCDC family genes, encoding proteins that are involved in intercellular transmembrane signal transduction and genetic signal transcription, among other functions. Alterations in expression, mutation, and DNA promoter methylation of CCDC family genes have been shown to be associated with the pathogenesis of many diseases, including primary ciliary dyskinesia, infertility, and tumors. In recent studies, CCDC family genes have been found to be involved in regulation of growth, invasion, metastasis, chemosensitivity, and other biological behaviors of malignant tumor cells in various cancer types, including nasopharyngeal carcinoma, lung cancer, colorectal cancer, and thyroid cancer. In this review, we summarize the involvement of CCDC family genes in tumor pathogenesis and the relevant upstream and downstream molecular mechanisms. In addition, we summarize the potential of CCDC family genes as tumor therapy targets. The findings discussed here help us to further understand the role and the therapeutic applications of CCDC family genes in tumors.
Collapse
Affiliation(s)
- Zhen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China.
| | - Weiwei Yan
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China
| | - Shaohua Liu
- Department of General Surgery, Pingxiang People's Hospital, Pingxiang, Jiangxi, 337000, China
| | - Zhan Liu
- Department of Gastroenterology and Clinical Nutrition, The First Affiliated Hospital (People's Hospital of Hunan Province), Hunan Normal University, Changsha, 410002, China
| | - Ping Xu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China; Respiratory Department, Peking University Shenzhen Hospital, Shenzhen, 518034, China.
| | - Weiyi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China.
| |
Collapse
|
4
|
Yang G, Chen X, Quan Z, Liu M, Guo Y, Tang Y, Peng L, Wang L, Wu Y, Wu X, Liu J, Zheng Y. Comprehensive analysis of the FOXA1-related ceRNA network and identification of the MAGI2-AS3/DUSP2 axis as a prognostic biomarker in prostate cancer. Front Oncol 2023; 13:1048521. [PMID: 36998469 PMCID: PMC10043306 DOI: 10.3389/fonc.2023.1048521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/27/2023] [Indexed: 03/16/2023] Open
Abstract
BackgroundProstate cancer (PCa) is the second most common cause of cancer-related deaths in American men. Even though increasing evidence has disclosed the competitive endogenous RNA (ceRNA) regulatory networks among cancers, the complexity and behavior characteristics of the ceRNA network in PCa remain unclear. Our study aimed to investigate the forkhead box A1 (FOXA1)-related ceRNA regulatory network and ascertain potential prognostic markers associated with PCa.MethodsRNA sequence profiles downloaded from The Cancer Genome Atlas (TCGA) were analyzed to recognize differentially expressed genes (DEGs) derived from tumor and non-tumor adjacent samples as well as FOXA1low and FOXA1high tumor samples. The enrichment analysis was conducted for the dysregulated mRNAs. The network for the differentially expressed long non-coding RNA (lncRNA)-associated ceRNAs was then established. Survival analysis and univariate Cox regression analysis were executed to determine independent prognostic RNAs associated with PCa. The correlation between DUSP2 and immune cell infiltration level was analyzed. Tissue and blood samples were collected to verify our network. Molecular experiments were performed to explore whether DUSP2 is involved in the development of PCa.ResultsA ceRNA network related to FOXA1 was constructed and comprised 18 lncRNAs, 5 miRNAs, and 44 mRNAs. The MAGI2-AS3~has-mir-106a/has-mir-204~DUSP2 ceRNA regulatory network relevant to the prognosis of PCa was obtained by analysis. We markedly distinguished the MAGI2-AS3/DUSP2 axis in the ceRNA. It will most likely become a clinical prognostic model and impact the changes in the tumor immune microenvironment of PCa. The abnormal MAGI2-AS3 expression level from the patients’ blood manifested that it would be a novel potential diagnostic biomarker for PCa. Moreover, down-expressed DUSP2 suppressed the proliferation and migration of PCa cells.ConclusionsOur findings provide pivotal clues to understanding the role of the FOXA1-concerned ceRNA network in PCa. Simultaneously, this MAGI2-AS3/DUSP2 axis might be a new significant prognostic factor associated with the diagnosis and prognosis of PCa.
Collapse
Affiliation(s)
- Guo Yang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiong Chen
- Department of Urology, The Ninth People’s Hospital of Chongqing, Chongqing, China
| | - Zhen Quan
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Miao Liu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuan Guo
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yangbin Tang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lang Peng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Leilei Wang
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Yingying Wu
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xiaohou Wu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiayu Liu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Yongbo Zheng, ; Jiayu Liu,
| | - Yongbo Zheng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Yongbo Zheng, ; Jiayu Liu,
| |
Collapse
|
5
|
Yang G, Li T, Liu J, Quan Z, Liu M, Guo Y, Wu Y, Ou L, Wu X, Zheng Y. lncRNA MAGI2-AS3 suppresses castration-resistant prostate cancer proliferation and migration via the miR-106a-5p/RAB31 axis. Genomics 2023; 115:110599. [PMID: 36889366 DOI: 10.1016/j.ygeno.2023.110599] [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: 11/01/2022] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Prostate cancer (PCa) is a common malignant cancer in elderly males in Western countries. Whole-genome sequencing confirmed that long non-coding RNAs (lncRNAs) are frequently altered in castration-resistant prostate cancer (CRPC) and promote drug resistance to cancer therapy. Therefore, elucidating the prospective role of lncRNAs in PCa oncogenesis and progression is of remarkable clinical significance. In this study, gene expression in prostate tissues was determined using RNA-sequencing datasets, and the gene diagnostic and prognostic values of CRPC were analyzed using bioinformatics. Further, the expression levels and clinical significance of MAGI2 Antisense RNA 3 (MAGI2-AS3) in PCa clinical specimens were evaluated. The tumor-suppressive activity of MAGI2-AS3 was functionally explored in PCa cell lines and animal xenograft models. MAGI2-AS3 was found to be aberrantly decreased in CRPC and was negatively correlated with Gleason score and lymph node status. Notably, low MAGI2-AS3 expression positively correlated with poorer survival in patients with PCa. The overexpression of MAGI2-AS3 significantly inhibited the proliferation and migration of PCa in vitro and in vivo. Mechanistically, MAGI2-AS3 could play a tumor suppressor function in CRPC through a novel miR-106a-5p/RAB31 regulatory network and could be a target for future cancer therapy.
Collapse
Affiliation(s)
- Guo Yang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 400042 Chongqing, China
| | - Ting Li
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, 400016 Chongqing, China
| | - Jiayu Liu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 400042 Chongqing, China
| | - Zhen Quan
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 400042 Chongqing, China
| | - Miao Liu
- Gastrointestinal Cancer Center, Chongqing University Cancer Hospital, 400030 Chongqing, China
| | - Yuan Guo
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 400042 Chongqing, China
| | - Yingying Wu
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, 400016 Chongqing, China
| | - Liping Ou
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical University, 400016 Chongqing, China
| | - Xiaohou Wu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 400042 Chongqing, China.
| | - Yongbo Zheng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 400042 Chongqing, China.
| |
Collapse
|
6
|
Yan C, Wang P, Zhao C, Yin G, Meng X, Li L, Cai S, Meng B. Long Noncoding RNA MAGI2-AS3 Represses Cell Progression in Clear Cell Renal Cell Carcinoma by Modulating the miR-629-5p/PRDM16 Axis. Crit Rev Eukaryot Gene Expr 2023; 33:43-56. [PMID: 37602452 DOI: 10.1615/critreveukaryotgeneexpr.2023048338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
The objective of this study was to determine the regulatory mechanism of MAGI2-AS3 in clear cell renal cell carcinoma (ccRCC), thereby supplying a new insight for ccRCC treatment. Expression data in TCGA-KIRC were obtained. Target gene lncRNA for research was determined using expression analysis and clinical analysis. lncRNA's downstream regulatory miRNA and mRNA were predicted by bioinformatics databases. ccRCC cell malignant phenotypes were detected via CCK-8, colony formation, Transwell migration, and invasion assays. The targeting relationship between genes was assessed through dual-luciferase reporter gene analysis. Kaplan-Meier (K-M) analysis was carried out to verify the effect of MAGI2-AS3, miR-629-5p, and PRDM16 on the survival rate of ccRCC patients. MAGI2-AS3 expression in ccRCC tissue and cells was shown to be markedly decreased and its expression to continuously decline with tumor progression. MAGI2-AS3 suppresses ccRCC proliferation and migration. Dual-luciferase assay showed that MAGI2-AS3 binds miR-629-5p and that miR-629-5p binds PRDM16. In addition, functional experiments showed that MAGI2-AS3 facilitates PRDM16 expression by repressing miR-629-5p expression, thereby suppressing ccRCC cell aggression. K-M analysis showed that upregulation of either MAGI2-AS3 or PRDM16 significantly improves ccRCC patient survival, while upregulation of miR-629-5p has no significant impact. MAGI2-AS3 sponges miR-629-5p to modulate PRDM16 to mediate ccRCC development. Meanwhile, the MAGI2-AS3/miR-629-5p/PRDM16 axis, as a regulatory pathway of ccRCC progression, may be a possible therapeutic target and prognostic indicator of ccRCC.
Collapse
Affiliation(s)
- Chengquan Yan
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Pengfei Wang
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Chaofei Zhao
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Guangwei Yin
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Xin Meng
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Lin Li
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Shengyong Cai
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| | - Bin Meng
- Department of Urology, Area 3, Tangshan Gongren Hospital, Tangshan City, Hebei Province, 063000, China
| |
Collapse
|
7
|
lncRNA-mediated ceRNA network in bladder cancer. Noncoding RNA Res 2022; 8:135-145. [PMID: 36605618 PMCID: PMC9792360 DOI: 10.1016/j.ncrna.2022.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022] Open
Abstract
Bladder cancer is a common disease associated with high rates of morbidity and mortality. Although immunotherapy approaches such as adoptive T-cell therapy and immune checkpoint blockade have been investigated for the treatment of bladder cancer, their off-target effects and ability to affect only single targets have led to clinical outcomes that are far from satisfactory. Therefore, it is important to identify novel targets that can effectively control tumor growth and metastasis. It is well known that long noncoding RNAs (lncRNAs) are powerful regulators of gene expression. Increasing evidence has shown that dysregulated lncRNAs in bladder cancer are involved in cancer cell proliferation, migration, invasion, apoptosis, and epithelial-mesenchymal transition (EMT). In this review, we focus on the roles and underlying mechanisms of lncRNA-mediated competing endogenous RNA (ceRNA) networks in the regulation of bladder cancer progression. In addition, we discuss the potential of targeting lncRNA-mediated ceRNA networks to overcome cancer treatment resistance and its association with clinicopathological features and outcomes in bladder cancer patients. We hope this review will stimulate research to develop more effective therapeutic approaches for bladder cancer treatment.
Collapse
|
8
|
Ghafouri-Fard S, Khoshbakht T, Hussen BM, Jamal HH, Taheri M, Hajiesmaeili M. A Comprehensive Review on Function of miR-15b-5p in Malignant and Non-Malignant Disorders. Front Oncol 2022; 12:870996. [PMID: 35586497 PMCID: PMC9108330 DOI: 10.3389/fonc.2022.870996] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/05/2022] [Indexed: 01/01/2023] Open
Abstract
miR-15b-5p is encoded by MIR15B gene. This gene is located on cytogenetic band 3q25.33. This miRNA participates in the pathogenesis of several cancers as well as non-malignant conditions, such as abdominal aortic aneurysm, Alzheimer’s and Parkinson’s diseases, cerebral ischemia reperfusion injury, coronary artery disease, dexamethasone induced steatosis, diabetic complications and doxorubicin-induced cardiotoxicity. In malignant conditions, both oncogenic and tumor suppressor impacts have been described for miR-15b-5p. Dysregulation of miR-15b-5p in clinical samples has been associated with poor outcome in different kinds of cancers. In this review, we discuss the role of miR-15b-5p in malignant and non-malignant conditions.
Collapse
Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tayyebeh Khoshbakht
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
- Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Hazha Hadayat Jamal
- Department of Biology, College of Education, Salahaddin University, Erbil, Iraq
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- *Correspondence: Mohammad Taheri, ; Mohammadreza Hajiesmaeili,
| | - Mohammadreza Hajiesmaeili
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Critical Care Fellowship, Department of Anesthesiology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Mohammad Taheri, ; Mohammadreza Hajiesmaeili,
| |
Collapse
|
9
|
Wang G, Li H, Hou Y. LncRNA MAGI2-AS3 inhibits tumor progression and angiogenesis by regulating ACY1 via interacting with transcription factor HEY1 in clear cell renal cell carcinoma. Cancer Gene Ther 2022; 29:585-596. [PMID: 34002044 DOI: 10.1038/s41417-021-00339-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 03/22/2021] [Accepted: 04/06/2021] [Indexed: 02/02/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) represents the most common type of RCC in adults, characterized by hyper-vascularization and metastatic relapse. Surgical resection is the main treatment due to poor response of ccRCC to radio-and chemotherapy. However, the high complexity of tumor vasculature in ccRCC has thwarted effects to develop new therapeutic strategies for ccRCC. In this study, we identify the anti-angiogenic activity of MAGI2-AS3 in ccRCC. 86 paired samples of tumor tissues and adjacent no-tumor tissues were collected from ccRCC patients. Dual-luciferase reporter assay, RIP, and ChIP assays were employed to confirm interactions between MAGI2-AS3, transcription factor HEY1, and the ACY1 gene. In other studies, we assayed human ccRCC cells RLC-310 for their viability, migration and invasion using CCK-8 detection and transwell chamber systems. Angiogenesis was evaluated in the Matrigel-based human umbilical vein endothelial cell (HUVEC)-RLC-310 coculture model and immunohistochemical staining for vascular endothelial growth factor (VEGF) and CD31 in tumor tissues collected from a xenograft ccRCC mouse model. MAGI2-AS3 and ACY1 expression was downregulated in ccRCC tissues, and low expression of MAGI2-AS3 was associated with poor patient survival. Overexpression of MAGI2-AS3 could reduce ccRCC cell viability and migration, inhibit vessel-like tube formation of HUVECs in vitro, and repress tumor growth and angiogenesis in vivo. MAGI2-AS3 bound with HEY1 and reduced the HEY1 enrichment at the ACY1 promoter region, thus increasing ACY1 gene transcription. HEY1 knockdown or ACY1 overexpression that resisted MAGI2-AS3 knockdown was found in the in vivo and in vitro settings. The present study demonstrates that MAGI2-AS3 exerts tumor-suppressive, anti-angiogenic activities in ccRCC by modulating the HEY1/ACY1 pathway, thus lending support for conducting further investigations of anti-angiogenesis therapy for ccRCC.
Collapse
Affiliation(s)
- Guanbo Wang
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China
| | - Hai Li
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China
| | - Yi Hou
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China.
| |
Collapse
|
10
|
Gasparello J, Papi C, Zurlo M, Gambari L, Rozzi A, Manicardi A, Corradini R, Gambari R, Finotti A. Treatment of Human Glioblastoma U251 Cells with Sulforaphane and a Peptide Nucleic Acid (PNA) Targeting miR-15b-5p: Synergistic Effects on Induction of Apoptosis. Molecules 2022; 27:molecules27041299. [PMID: 35209084 PMCID: PMC8875359 DOI: 10.3390/molecules27041299] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/03/2022] [Accepted: 02/10/2022] [Indexed: 12/17/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a lethal malignant tumor accounting for 42% of the tumors of the central nervous system, the median survival being 15 months. At present, no curative treatment is available for GBM and new drugs and therapeutic protocols are urgently needed. In this context, combined therapy appears to be a very interesting approach. The isothiocyanate sulforaphane (SFN) has been previously shown to induce apoptosis and inhibit the growth and invasion of GBM cells. On the other hand, the microRNA miR-15b is involved in invasiveness and proliferation in GBM and its inhibition is associated with the induction of apoptosis. On the basis of these observations, the objective of the present study was to determine whether a combined treatment using SFN and a peptide nucleic acid interfering with miR-15b-5p (PNA-a15b) might be proposed for increasing the pro-apoptotic effects of the single agents. To verify this hypothesis, we have treated GMB U251 cells with SFN alone, PNA-a15b alone or their combination. The cell viability, apoptosis and combination index were, respectively, analyzed by calcein staining, annexin-V and caspase-3/7 assays, and RT-qPCR for genes involved in apoptosis. The efficacy of the PNA-a15b determined the miR-15b-5p content analyzed by RT-qPCR. The results obtained indicate that SFN and PNA-a15b synergistically act in inducing the apoptosis of U251 cells. Therefore, the PNA-a15b might be proposed in a “combo-therapy” associated with SFN. Overall, this study suggests the feasibility of using combined treatments based on PNAs targeting miRNA involved in GBM and nutraceuticals able to stimulate apoptosis.
Collapse
Affiliation(s)
- Jessica Gasparello
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (J.G.); (C.P.); (M.Z.)
| | - Chiara Papi
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (J.G.); (C.P.); (M.Z.)
| | - Matteo Zurlo
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (J.G.); (C.P.); (M.Z.)
| | - Laura Gambari
- Laboratorio RAMSES, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Andrea Rozzi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy; (A.R.); (A.M.); (R.C.)
| | - Alex Manicardi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy; (A.R.); (A.M.); (R.C.)
| | - Roberto Corradini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy; (A.R.); (A.M.); (R.C.)
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (J.G.); (C.P.); (M.Z.)
- Correspondence: (R.G.); (A.F.); Tel.: +39-0532-974443 (R.G.); +39-0532-974510 (A.F.); Fax: +39-0532-974500 (R.G. & A.F.)
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy; (J.G.); (C.P.); (M.Z.)
- Correspondence: (R.G.); (A.F.); Tel.: +39-0532-974443 (R.G.); +39-0532-974510 (A.F.); Fax: +39-0532-974500 (R.G. & A.F.)
| |
Collapse
|
11
|
LncRNA MAGI2-As3 Suppresses the Proliferation and Invasion of Cervical Cancer by Sponging MiR-15b. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:9707206. [PMID: 35126958 PMCID: PMC8808199 DOI: 10.1155/2022/9707206] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/06/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Cervical cancer is the leading cause of cancer deaths among women, and more than 85% of cervical cancer deaths occur in low and middle-income countries. The purpose of this study is to investigate the functions of MAGI2-AS3 and miR-15b in cervical cancer. MATERIALS AND METHODS The mRNA levels of MAGI2-AS3, miR-15b, and CCNE1 were evaluated using RT-qPCR assay. Dual-luciferase reporter gene assay was used to confirm whether miR-15b binds to CCNE1. RESULTS LncRNA MAGI2-AS3 was downregulated, while miR-15b was upregulated in cervical cancer. Cervical cancer patients with low expression of MAGI2-AS3 have a poor prognosis. Upregulation of MAGI2-AS3 inhibited proliferative and invasive abilities of HeLa cells via regulating the expression of miRNA-15b. MiR-15b inhibitor suppressed cell proliferation and invasion. CCNE1 was a direct target gene of miR-15b, which binds to the 3'-UTR of its mRNA. MiR-15b partially reversed the inhibitory effect of overexpression of MAGI2-AS3 on the proliferation and invasion of HeLa cells. MAGI2-AS3 mediated the expression of CCNE1 in HeLa cells. CONCLUSION LncRNA MAGI2-AS3 inhibits the proliferation and invasion of cervical cancer cells via the miRNA-15/CCNE1 axis. Our results illustrates that MAGI2-AS3 can be used as a useful clinical predictor for early diagnosis and prognosis assessment of cervical cancer.
Collapse
|
12
|
Biological functions and clinical significance of long noncoding RNAs in bladder cancer. Cell Death Discov 2021; 7:278. [PMID: 34611133 PMCID: PMC8492632 DOI: 10.1038/s41420-021-00665-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/02/2021] [Accepted: 09/17/2021] [Indexed: 12/24/2022] Open
Abstract
Bladder cancer (BCa) is one of the 10 most common cancers with high morbidity and mortality worldwide. Long noncoding RNAs (lncRNAs), a large class of noncoding RNA transcripts, consist of more than 200 nucleotides and play a significant role in the regulation of molecular interactions and cellular pathways during the occurrence and development of various cancers. In recent years, with the rapid advancement of high-throughput gene sequencing technology, several differentially expressed lncRNAs have been discovered in BCa, and their functions have been proven to have an impact on BCa development, such as cell growth and proliferation, metastasis, epithelial-mesenchymal transition (EMT), angiogenesis, and drug-resistance. Furthermore, evidence suggests that lncRNAs are significantly associated with BCa patients' clinicopathological characteristics, especially tumor grade, TNM stage, and clinical progression stage. In addition, lncRNAs have the potential to more accurately predict BCa patient prognosis, suggesting their potential as diagnostic and prognostic biomarkers for BCa patients in the future. In this review, we briefly summarize and discuss recent research progress on BCa-associated lncRNAs, while focusing on their biological functions and mechanisms, clinical significance, and targeted therapy in BCa oncogenesis and malignant progression.
Collapse
|
13
|
Li HJ, Gong X, Li ZK, Qin W, He CX, Xing L, Zhou X, Zhao D, Cao HL. Role of Long Non-coding RNAs on Bladder Cancer. Front Cell Dev Biol 2021; 9:672679. [PMID: 34422802 PMCID: PMC8371405 DOI: 10.3389/fcell.2021.672679] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/17/2021] [Indexed: 12/30/2022] Open
Abstract
Bladder cancer (BC) is the most common malignant tumor in the urinary system, and its early diagnosis is conducive to improving clinical prognosis and prolonging overall survival time. However, few biomarkers with high sensitivity and specificity are used as diagnostic markers for BC. Multiple long non-coding RNAs (lncRNAs) are abnormally expressed in BC, and play key roles in tumorigenesis, progression and prognosis of BC. In this review, we summarize the expression, function, molecular mechanisms and the clinical significance of lncRNAs on bladder cancer. There are more than 100 dysregulated lncRNAs in BC, which are involved in the regulation of proliferation, cell cycle, apoptosis, migration, invasion, metabolism and drug resistance of BC. Meanwhile, the molecular mechanisms of lncRNAs in BC was explored, including lncRNAs interacting with DNA, RNA and proteins. Additionally, the abnormal expression of thirty-six lncRNAs is closely associated with multiple clinical characteristics of BC, including tumor size, metastasis, invasion, and drug sensitivity or resistance of BC. Furthermore, we summarize some potential diagnostic and prognostic biomarkers of lncRNA for BC. This review provides promising novel biomarkers in early diagnosis, prognosis and monitoring of BC based on lncRNAs.
Collapse
Affiliation(s)
- Hui-Jin Li
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Xue Gong
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Zheng-Kun Li
- College of Medical Technology, Xi'an Medical University, Xi'an, China
| | - Wei Qin
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Chun-Xia He
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Lu Xing
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Xin Zhou
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Dong Zhao
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Hui-Ling Cao
- Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, and Brain Disorders, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| |
Collapse
|
14
|
Kotelevets L, Chastre E. A New Story of the Three Magi: Scaffolding Proteins and lncRNA Suppressors of Cancer. Cancers (Basel) 2021; 13:4264. [PMID: 34503076 PMCID: PMC8428372 DOI: 10.3390/cancers13174264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 12/16/2022] Open
Abstract
Scaffolding molecules exert a critical role in orchestrating cellular response through the spatiotemporal assembly of effector proteins as signalosomes. By increasing the efficiency and selectivity of intracellular signaling, these molecules can exert (anti/pro)oncogenic activities. As an archetype of scaffolding proteins with tumor suppressor property, the present review focuses on MAGI1, 2, and 3 (membrane-associated guanylate kinase inverted), a subgroup of the MAGUK protein family, that mediate networks involving receptors, junctional complexes, signaling molecules, and the cytoskeleton. MAGI1, 2, and 3 are comprised of 6 PDZ domains, 2 WW domains, and 1 GUK domain. These 9 protein binding modules allow selective interactions with a wide range of effectors, including the PTEN tumor suppressor, the β-catenin and YAP1 proto-oncogenes, and the regulation of the PI3K/AKT, the Wnt, and the Hippo signaling pathways. The frequent downmodulation of MAGIs in various human malignancies makes these scaffolding molecules and their ligands putative therapeutic targets. Interestingly, MAGI1 and MAGI2 genetic loci generate a series of long non-coding RNAs that act as a tumor promoter or suppressor in a tissue-dependent manner, by selectively sponging some miRNAs or by regulating epigenetic processes. Here, we discuss the different paths followed by the three MAGIs to control carcinogenesis.
Collapse
Affiliation(s)
- Larissa Kotelevets
- Sorbonne Université, INSERM, UMR_S938, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France
| | - Eric Chastre
- Sorbonne Université, INSERM, UMR_S938, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France
| |
Collapse
|
15
|
LncRNA MAGI2-AS3 is downregulated in the distant recurrence of hepatocellular carcinoma after surgical resection and affects migration and invasion via ROCK2. Ann Hepatol 2021; 19:535-540. [PMID: 32546442 DOI: 10.1016/j.aohep.2020.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION AND OBJECTIVES Hepatocellular carcinoma (HCC) is the second most lethal cancer around the world, with poor survival rate and high metastasis rate in patients. Long noncoding RNAs (lncRNAs) have been reported to modulate the initiation and development of liver cancer. We aimed to investigate the role of lncRNA MAGI2-AS3 in HCC and underlying mechanisms. MATERIALS AND METHODS The expression levels of MAGI2-AS3 in plasma of HCC patients and the control participants were measured by qPCR. Hep3B and MHCC97-H cells were transfected with MAGI2-AS3 and ROCK2 expression vectors. Cell migration and invasion of HCC cells transfected with the vectors were investigated by transwell assay. In addition, flow cytometry and western blot were performed for apoptosis detection. RESULTS We found that MAGI2-AS3 was downregulated in plasma of early stage HCC patients compared to healthy controls. After surgical resection, the expression levels of MAGI2-AS3 were increased compared to pretreatment levels on the day of discharge. During the follow-up, MAGI2-AS3 was downregulated in patients developed distant recurrence, but not in other patients compared to the levels measured on the day of discharge. In HCC cells, overexpression of MAGI2-AS3 mediated the downregulation of ROCK2. Cell invasion and migration assay showed that overexpression of MAGI2-AS3 mediated the decreased cell invasion and migration rate, while ROCK2 played an opposite role and attenuated the effects of overexpression of MAGI2-AS3. CONCLUSION Our study indicated that MAGI2-AS3 was downregulated in the distant recurrence of HCC after surgical resection and affected the invasion and migration of HCC cells via ROCK2.
Collapse
|
16
|
Liao Y, Zou X, Wang K, Wang Y, Wang M, Guo T, Zhong B, Jiang N. Comprehensive analysis of Transcription Factors identified novel prognostic biomarker in human bladder cancer. J Cancer 2021; 12:5605-5621. [PMID: 34405021 PMCID: PMC8364643 DOI: 10.7150/jca.58484] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 07/20/2021] [Indexed: 12/13/2022] Open
Abstract
Background: Transcriptional factors (TFs) are responsible for regulating the transcription of pro-oncogenes and tumor suppressor genes in the process of tumor development. However, the role of these transcription factors in Bladder cancer (BCa) remains unclear. And the main purpose of this research is to explore the possibility of these TFs serving as biomarkers for BCa. Methods: We analyzed the differential expression of TFs in BCa from The Cancer Genome Atlas (TCGA) online database, identified 408 up-regulated TFs and 751down-regulated TFs. We obtained some hub genes via WGCNA model and detected the RNAs level in BCa cells and tissues. Then, the relationship between the expression and clinicopathological parameters was further investigated. Kaplan-Meier curves and the log-rank test were carried out to analyze the relationship between NFATC1, AKNA and five-TFs combination and overall survival (OS). And RT-PCR assay was conducted to further consolidate and verify these results. Results: There were significant differences in the expression of five TFs (CBX7, AKNA, HDAC4, EBF2 and NFATC1) between bladder cancer and normal bladder tissue. In BCa tissue and cell lines, the five TFs were frequently down-regulated, and closely related to poor prognosis. Moreover, the RT-PCR results of five TFs in bladder cancer and normal bladder tissue were consistent with the database results, and reduced TFs could significantly induce or restrain the transcription of many critical factors. The expression level of AKNA and NFATC1 could serve as independent biomarker to predict the overall survival (P<0.05). And the above five TFs combined detection of bladder cancer has higher sensitivity and specificity. Furthermore, differential neutrophils expression between high-risk and low-risk were found, which consolidated the role and function of the five TFs combination model in the progression of BCa. Conclusions: Our analysis effectively provides a newly TFs-associated prognostic model for bladder cancer. The combination of five identified-TFs is an independent prognostic biomarker, which could serve as a more effective therapeutic target for BCa patients.
Collapse
Affiliation(s)
- Yihao Liao
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Xuanxuan Zou
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Keke Wang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Youzhi Wang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Miaomiao Wang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Tao Guo
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Boqiang Zhong
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Ning Jiang
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| |
Collapse
|
17
|
Zhang Y, Chen L, Luo G. Long non-coding RNA PCAT6 regulates bladder cancer progression via the microRNA-143-3p/PDIA6 axis. Exp Ther Med 2021; 22:947. [PMID: 34335889 PMCID: PMC8290407 DOI: 10.3892/etm.2021.10379] [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: 05/08/2020] [Accepted: 03/31/2021] [Indexed: 12/14/2022] Open
Abstract
Although long non-coding (lnc)RNAs have been reported to be involved in the pathological development of bladder cancer, the functions of lncRNA prostate cancer-associated transcript 6 (PCAT6) and its underlying mechanism of action in bladder cancer remain unknown. The present study aimed to investigate the effect of PCAT6 in bladder cancer progression and explore its potential application as a novel treatment target. The expression of PCAT6 and miR-143-3p in bladder cancer tissues, adjacent normal tissues and cell lines was measured using reverse transcription-quantitative PCR. Fluorescence in situ hybridization assay was used to detect the subcellular localization of PCAT6. MTT, EdU, Transwell and wound healing assays were conducted to assess the biological function of PCAT6 on cell proliferation, migration and invasion. Putative binding sites between miR-143-3p and PCAT6 or PDIA6 were predicted using starBase, Lncbase and TargetScan analyzes. Dual-luciferase reporter assay was also used to confirm the potential binding between PCAT6 and miR-143-3p. RNA immunoprecipitation assay was performed to verify the possible interaction between PCAT6 and miR-143-3p. Western blotting was used to measure the expression of PDIA6. The results demonstrated that the expression levels of PCAT6 were upregulated in bladder cancer tissues relative to those in adjacent normal bladder tissues. Knockdown of PCAT6 served a role in suppressing the proliferation, migration and invasion of T24T and EJ bladder cancer cells. PCAT6 knockdown contributed to a reduction of PDIA6 expression at the mRNA and protein levels compared with that in negative control-transfected cells, whilst the miR-143-3p inhibitor partially mitigated this reduction effect. In addition, rescue experiments revealed that the miR-143-3p inhibitors reversed the effects of PCAT6 silencing on the malignant phenotypes of bladder cancer. Collectively, the results of the present study demonstrated that PCAT6 may serve an oncogenic role in bladder cancer via the miR-143-3p/PDIA6 axis. These results may provide a potential therapeutic target for the treatment of bladder cancer.
Collapse
Affiliation(s)
- Yuanjie Zhang
- Department of Urology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Lin Chen
- Department of Urology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Gang Luo
- Department of Urology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| |
Collapse
|
18
|
Kai-Xin L, Cheng C, Rui L, Zheng-Wei S, Wen-Wen T, Peng X. Roles of lncRNA MAGI2-AS3 in human cancers. Biomed Pharmacother 2021; 141:111812. [PMID: 34126355 DOI: 10.1016/j.biopha.2021.111812] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/04/2021] [Accepted: 06/07/2021] [Indexed: 12/20/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are noncoding RNAs more than 200 nucleotides in length. A growing number of reports indicate that lncRNAs play a key role in multiple cancers by serving as oncogenes or tumor suppressor genes. MAGI2 antisense RNA 3 (MAGI2-AS3) is ubiquitously expressed in human cancers, and the level of MAGI2-AS3 expression is associated with the progression and prognosis of cancers. Moreover, dysregulation of MAGI2-AS3 has been found to regulate cancer cell proliferation, cell death, invasion and metastasis and treatment resistance by serving as a competing endogenous RNA (ceRNA), epigenomic regulator, and transcriptional regulator. Moreover, increasing evidence shows that MAGI2-AS3 may be a potential biomarker for cancer prognosis and a potential target for cancer therapy. In this review, we summarize current research on the functions, mechanisms and clinical significance of the lncRNA MAGI2-AS3 in cancer development.
Collapse
Affiliation(s)
- Liu Kai-Xin
- Honghui-hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Cheng Cheng
- Gansu Provincial Maternal and Child Health Hospital, Lanzhou 730000, China
| | - Li Rui
- Honghui-hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Shi Zheng-Wei
- Honghui-hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Tan Wen-Wen
- Department of Bone Disease and Oncology, Honghui Hospital, Xi'an Jiaotong University, Shaanxi 710054, China
| | - Xu Peng
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Shaanxi 710054, China.
| |
Collapse
|
19
|
Novel insights for lncRNA MAGI2-AS3 in solid tumors. Biomed Pharmacother 2021; 137:111429. [PMID: 33761624 DOI: 10.1016/j.biopha.2021.111429] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/18/2021] [Accepted: 02/21/2021] [Indexed: 02/08/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) refer to elements of genomic transcription with more than 200 nucleotides that are not translated into proteins, but have crucial roles in cancer progression. MAGI2-AS3, a novel lncRNA, has been reported to be aberrantly expressed in many solid tumors. Increasingly, studies have demonstrated that MAGI2-AS3 expression is significantly correlated with patient clinical characteristics, and that MAGI2-AS3 can regulate multiple biological processes through target-gene regulation. Furthermore, MAGI2-AS3 may serve as both a diagnostic biomarker and as a promising therapeutic target against solid tumors. In this review, we summarize the current knowledge regarding the biological functions and related molecular mechanisms of MAGI2-AS3 in solid-tumor progression. We conclude that understanding MAGI2-AS3 properties may provide new insights into the diagnoses and treatments of solid tumors.
Collapse
|
20
|
Guo K, Qi D, Huang B. LncRNA MEG8 promotes NSCLC progression by modulating the miR-15a-5p-miR-15b-5p/PSAT1 axis. Cancer Cell Int 2021; 21:84. [PMID: 33526036 PMCID: PMC7852147 DOI: 10.1186/s12935-021-01772-8] [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: 05/12/2020] [Accepted: 01/11/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the most common tumor with severe morbidity and high mortality. Long non-coding RNAs (lncRNAs) as crucial regulators participate in multiple cancer progressions. However, the role of lncRNA MEG8 in the development of NSCLC remains unclear. Here, we aimed to investigate the effect of lncRNA MEG8 on the progression of NSCLC and the underlying mechanism. METHODS Cell proliferation was analyzed by EdU assays. The impacts of lncRNA MEG8, miR-15a-5p, and miR-15b-5p on cell invasion and migration of NSCLC were assessed by transwell assay. The luciferase reporter gene assay was performed using the Dual-luciferase Reporter Assay System. The effect of lncRNA MEG8, miR-15a-5p, and miR-15b-5p on tumor growth was evaluated in nude mice of Balb/c in vivo. RESULTS We revealed that the expression levels of MEG8 were elevated in the NSCLC patient tissues compared to that in adjacent normal tissues. The expression of MEG8 was negatively relative to that of miR-15a-5p and miR-15b-5p in the NSCLC patient tissues. The expression of MEG8 was upregulated, while miR-15a-5p and miR-15b-5p were downregulated in NSCLC cell lines. The depletion of MEG8 inhibited NSCLC cell proliferation, migration, and invasion in vitro. MEG8 contributed to NSCLC progression by targeting miR-15a-5p/miR-15b-5p in vitro. LncRNA MEG8 contributes to tumor growth of NSCLC via the miR-15a/b-5p/PSAT1 axis in vivo. Thus, we concluded that lncRNA MEG8 promotes NSCLC progression by modulating the miR-15a/b-5p/PSAT1 axis. CONCLUSIONS Our findings demonstrated that lncRNA MEG8 plays a critical role in NSCLC development. LncRNA MEG8, miR-15a-5p, miR-15b-5p, and PSAT1 may serve as potential targets for NSCLC therapy.
Collapse
Affiliation(s)
- Kai Guo
- Department of Thoracic Surgery, The First Affiliated Hospital of Jinzhou Medical University, Renming Street #5-2, Guta District, Jinzhou City, Liaoning Province, 121000, People's Republic of China
| | - Di Qi
- Department of Thoracic Surgery, The First Affiliated Hospital of Jinzhou Medical University, Renming Street #5-2, Guta District, Jinzhou City, Liaoning Province, 121000, People's Republic of China
| | - Bo Huang
- Department of Thoracic Surgery, The First Affiliated Hospital of Jinzhou Medical University, Renming Street #5-2, Guta District, Jinzhou City, Liaoning Province, 121000, People's Republic of China.
| |
Collapse
|
21
|
Jiang L, Chen Q, Bei M, Shao M, Xu J. Characterizing the tumor RBP-ncRNA circuits by integrating transcriptomics, interactomics and clinical data. Comput Struct Biotechnol J 2021; 19:5235-5245. [PMID: 34630941 PMCID: PMC8479238 DOI: 10.1016/j.csbj.2021.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/07/2021] [Accepted: 09/16/2021] [Indexed: 02/05/2023] Open
Abstract
The interactions among non-coding RNA (ncRNA) and RNA binding protein (RBP) are increasingly recognized as one of basic mechanisms in gene regulation, and play a crucial role in cancer progressions. However, the current understanding of this regulation network, especially its dynamic spectrum according to the differentially expressed nodes (i.e. ncRNAs and RBP) is limited. Utilizing transcriptomics and interactomics resources, dysregulated RBP-ncRNA circuits (RNCs) are systematically dissected across 14 tumor types. We found these aberrant RNCs are robust and enriched with cancer-associated ncRNAs, RBPs and drug targets. Notably, the nodes in altered RNCs can jointly predict the clinical outcome while the individual node can't, underscoring RNCs can serve as prognostic biomarkers. We identified 30 pan-cancer RNCs dysregulated at least in six tumor types. Pan-cancer RNC analysis can reveal novel mechanism of action (MOA) and repurpose for existing drugs. Importantly, our experiments elucidated the novel role of hsa-miR-224-5p, a member of the pan-cancer RNC hsa-miR-224-5p_MAGI2-AS3_MBNL2, in EMT program. Our analysis highlights the potential utilities of RNCs in elucidating ncRNA function in cancer, associating with clinical outcomes and discovering novel drug targets or MOA.
Collapse
Affiliation(s)
| | | | | | | | - Jianzhen Xu
- Corresponding author at: No. 22, Rd. Xinling, Shantou, China.
| |
Collapse
|
22
|
Shen D, Xu J, Cao X, Cao X, Tan H, Deng H. Long noncoding RNA MAGI2-AS3 inhibits bladder cancer progression through MAGI2/PTEN/epithelial-mesenchymal transition (EMT) axis. Cancer Biomark 2021; 30:155-165. [PMID: 33104021 DOI: 10.3233/cbm-201421] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Long noncoding RNA (lncRNA) are critical regulators of tumor progression. OBJECTIVE To determine how the lncRNA membrane associated guanylate kinase, WW and PDZ domain-containing 2 (MAG12) antisense RNA 3 (MAGI2-AS3) and the phosphatase and tensin homolog (PTEN) gene function in regulating bladder cancer (Bca) progression. METHODS Total RNA from 80 Bca tissues and 30 paired para-cancerous tissues from patients was sequentially extracted, quantified, purified, and reverse transcribed using RT-PCR. A library was constructed and sequenced. Four Bca cell lines and a normal urothelial cell line were transfected with lentiviral plasmids, and cell migration and invasion were assayed in vitro. An orthotopic mouse model of Bca was created for in vivo studies. RESULTS MAGI2-AS3 expression was significantly downregulated in Bca, compared with normal tissues, and negatively associated with tumor stage and a poor prognosis. MAGI2-AS3 and its sense RNA MAGI2 showed significant and positive correlation. The expression of MAGI2 and its downstream gene, PTEN, increased in Bca cells overexpressing MAGI2-AS3, and interference by MAGI2 expression reversed the migration and invasion inhibited by MAGI2-AS3 overexpression. CONCLUSION MAGI2-AS3 overexpression inhibited Bca cell progression by regulating the MAGI2/PTEN/epithelial-mesenchymal transition, offering novel insights into the mechanism of Bca progression.
Collapse
Affiliation(s)
- Daqing Shen
- Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Urology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Jing Xu
- Department of Urology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Xiande Cao
- Department of Urology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Xianxiang Cao
- Department of Urology, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Hailin Tan
- Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Huanghao Deng
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
23
|
Shen D, Zhang Y, Zheng Q, Yu S, Xia L, Cheng S, Li G. A Competing Endogenous RNA Network and an 8-lncRNA Prognostic Signature Identify MYO16-AS1 as an Oncogenic lncRNA in Bladder Cancer. DNA Cell Biol 2020; 40:26-35. [PMID: 33270518 DOI: 10.1089/dna.2020.6014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recently, growing evidence has shed light on the competitive endogenous RNAs (ceRNAs) activity of long noncoding RNAs (lncRNAs) in carcinogenesis and tumor progression. To better elucidate the regulatory mechanisms of lncRNA in muscle-invasive bladder cancer (MIBC), we identified aberrantly expressed mRNAs, lncRNAs, and miRNAs in tumor tissues by using RNA sequence profiles from The Cancer Genome Atlas. The MIBC-specific ceRNA network, including 58 lncRNAs, 22 miRNAs, and 52 mRNAs, was constructed and visualized in Cytoscape. Further, using the univariate and multivariate Cox regression model, we screened 8 lncRNAs (AC078778.1, LINC00525, AC008676.1, AP000553.1, SACS-AS1, AC009065.1, AC127496.3, and MYO16-AS1) to construct an lncRNA signature for predicting the overall survival of MIBC patients. Kaplan-Meier analysis and a receiver operating characteristic curve were applied to evaluate the performance of the signature. Real-time quantitative PCR analysis was carried out to test expression levels of the 8 lncRNAs in MIBC patient tissues. Transwell assays demonstrated that overexpressing MYO16-AS1 can enhance UMUC2 migration and invasion. Our study offers a novel lncRNA-correlated ceRNA model to better understand the molecular mechanisms involved in MIBC. In addition, we developed an independent 8-lncRNAs biomarker for prognostic prediction and identified MYO16-AS1 as an oncogenic lncRNA in bladder cancer.
Collapse
Affiliation(s)
- Danyang Shen
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Youyun Zhang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qiming Zheng
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shicheng Yu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liqun Xia
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng Cheng
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
24
|
Wang X, Zhang R, Wu S, Shen L, Ke M, Ouyang Y, Lin M, Lyu Y, Sun B, Zheng Z, Yang J, Yang J, Lu W, Yang Y, Li D, Zou Y, Huang H, Nan A. Super-Enhancer LncRNA LINC00162 Promotes Progression of Bladder Cancer. iScience 2020; 23:101857. [PMID: 33344916 PMCID: PMC7736918 DOI: 10.1016/j.isci.2020.101857] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/21/2020] [Accepted: 11/19/2020] [Indexed: 02/06/2023] Open
Abstract
Due to the lack of effective early diagnostic measures and treatment methods, bladder cancer has become a malignant tumor that seriously threatens people's lives and health. Here, we reported that LINC00162, a super-enhancer long noncoding RNA, was highly expressed in bladder cancer cells and tissues. And LINC00162 was negatively correlated with neighboring PTTG1IP expression. Knocking down LINC00162 expression can inhibit the proliferative activity of bladder cancer cells and the growth of transplanted tumors in vivo, while knocking down the expression of PTTG1IP could restore the proliferative activity of bladder cancer cells. In addition, both LINC00162 and PTTG1IP were found to be able to bind to THRAP3, a transcription-related protein. And THRAP3 can regulate PTTG1IP expression. Finally, we demonstrated a mechanism that LINC00162 could regulate PTTG1IP expression through binding THRAP3. This study provided a potential target molecule for clinical treatment of bladder cancer. Expression of LINC00162 is increased in bladder cancer LINC00162 promotes bladder cancer progress in vitro and in vivo LINC00162 regulates neighboring PTTG1IP expression to promote bladder cancer LINC00162 inhibits PTTG1IP expression by interacting THRAP3
Collapse
Affiliation(s)
- Xin Wang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Ruirui Zhang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Shuilian Wu
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Liping Shen
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Meixia Ke
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yan Ouyang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Mengqi Lin
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yiting Lyu
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Binuo Sun
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Zhijian Zheng
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jialei Yang
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Jie Yang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Wenmin Lu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Yiping Yang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Danni Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Yunfeng Zou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| | - Haishan Huang
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Aruo Nan
- Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China.,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China
| |
Collapse
|
25
|
Cheng W, Shi X, Lin M, Yao Q, Ma J, Li J. LncRNA MAGI2-AS3 Overexpression Sensitizes Esophageal Cancer Cells to Irradiation Through Down-Regulation of HOXB7 via EZH2. Front Cell Dev Biol 2020; 8:552822. [PMID: 33330444 PMCID: PMC7732634 DOI: 10.3389/fcell.2020.552822] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/29/2020] [Indexed: 12/31/2022] Open
Abstract
Background Accumulating evidence has suggested that aberrant expression of long non-coding RNAs (lncRNAs) may contribute to cancer progression in association with radioresistance. The current study aimed to identify the potential role of lncRNA MAGI2-AS3 and the underlying mechanism in its regulation of the radio-sensitivity of esophageal cancer cells. Methods and Results Initially, we detected high expression of HOXB7 from microarray-based gene expression profiling of esophageal cancer. Then, we identified the interactions among MAGI2-AS3, HOXB7, and EZH2 by dual-luciferase reporter gene assay, RNA pull-down assay, RIP assay and ChIP assay. HOXB7 was highly-expressed, while MAGI2-AS3 was poorly-expressed in esophageal cancer tissues and cells. The effect of MAGI2-AS3 and HOXB7 on esophageal cancer cell proliferation and apoptosis as well as tumorigenicity of radioresistant cells was examined by gain- and loss-of-function experiments. Interestingly, MAGI2-AS3 down-regulated HOXB7 through interaction with EZH2, which promoted cell apoptosis and inhibited proliferation and radio-resistance. Besides, down-regulation of MAGI2-AS3 exerted a promoting effect on these malignant phenotypes. Conclusion Taken together, our results reveal the potential role of MAGI2-AS3 over-expression in controlling esophageal cancer resistance to radiotherapy by down-regulating HOXB7, this providing a candidate biomarker for resistance to radiotherapy.
Collapse
Affiliation(s)
- Wenfang Cheng
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Xiuling Shi
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Mingqiang Lin
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Qiwei Yao
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Jiayu Ma
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Jiancheng Li
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| |
Collapse
|
26
|
Liu X, Dong Y, Song D. Inhibition of microRNA-15b-5p Attenuates the Progression of Oral Squamous Cell Carcinoma via Modulating the PTPN4/STAT3 Axis. Cancer Manag Res 2020; 12:10559-10572. [PMID: 33149666 PMCID: PMC7604544 DOI: 10.2147/cmar.s272498] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/23/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Emerging evidence has demonstrated the important functions of microRNAs (miRNAs) in human malignancies. This study focuses on the function of miR-15b-5p on the oral squamous cell carcinoma (OSCC) progression and the molecules involved. METHODS Tumor and the paracancerous tissues were obtained from OSCC patients. Differentially expressed miRNAs between the tumor and normal tissues were screened out. miR-15b-5p expression in tumors and acquired cells was determined, and its correlation with patient survival was analyzed. Knockdown of miR-15b-5p was introduced in SCC-4 and CAL-27 cells to explore its role in cell growth and metastasis. Binding relationship between miR-15b-5p and PTPN4 was validated, and altered expression of PTPN4 was introduced in cells to explore its function in OSCC development. Xenograft tumors were induced in nude mice for in vivo experiments. RESULTS miR-15b-5p was abundantly expressed in OSCC tumors and cells and linked to poor survival in patients. Silencing of miR-15b-5p suppressed proliferation, migration, and invasion and triggered apoptosis in SCC-4 and CAL-27 cells. miR-15b-5p targeted PTPN4. Further silencing of PTPN4 blocked the inhibiting functions of miR-15b-5p inhibitor in OSCC cell growth. The in vitro results were reproduced in vivo, where inhibition of miR-15b-5p led to a decline in tumor growth and metastasis in nude mice. PTPN4 was found as a negative mediator of the STAT3 pathway. CONCLUSION This study evidenced that miR-15b-5p possibly promotes OSCC development through binding to PTPN4 and the following STAT3 signaling activation. miR-15b-5p may be a potential therapeutic target for OSCC.
Collapse
Affiliation(s)
- Xuerong Liu
- Department of Oral and Maxillofacial Surgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong277100, People’s Republic of China
| | - Yuanyuan Dong
- Department of Oral and Maxillofacial Surgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong277100, People’s Republic of China
| | - Dan Song
- Department of Oral and Maxillofacial Surgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong277100, People’s Republic of China
| |
Collapse
|
27
|
Coexpression Network Analysis Identifies a Novel Nine-RNA Signature to Improve Prognostic Prediction for Prostate Cancer Patients. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4264291. [PMID: 32953881 PMCID: PMC7482004 DOI: 10.1155/2020/4264291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/21/2020] [Indexed: 12/31/2022]
Abstract
Background Prostate cancer (PCa) is the most common malignancy and the leading cause of cancer death in men. Recent studies suggest the molecular signature was more effective than the clinical indicators for the prognostic prediction, but all of the known studies focused on a single RNA type. The present study was to develop a new prognostic signature by integrating long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs) and evaluate its prognostic performance. Methods The RNA expression data of PCa patients were downloaded from The Cancer Genome Atlas (TCGA) or Gene Expression Omnibus database (GSE17951, GSE7076, and GSE16560). The PCa-driven modules were identified by constructing a weighted gene coexpression network, the corresponding genes of which were overlapped with differentially expressed RNAs (DERs) screened by the MetaDE package. The optimal prognostic signature was screened using the least absolute shrinkage and selection operator analysis. The prognostic performance and functions of the combined prognostic signature was then assessed. Results Twelve PCa-driven modules were identified using TCGA dataset and validated in the GSE17951 and GSE7076 datasets, and six of them were considered to be preserved. A total of 217 genes in these 6 modules were overlapped with 699 DERs, from which a nine-gene prognostic signature was identified (including 3 lncRNAs and 6 mRNAs), and the risk score of each patient was calculated. The overall survival was significantly shortened in patients having the risk score higher than the cut-off, which was demonstrated in TCGA (p = 5.063E − 03) dataset and validated in the GSE16560 (p = 3.268E − 02) dataset. The prediction accuracy of this risk score was higher than that of clinical indicators (the Gleason score and prostate-specific antigen) or the single RNA type, with the area under the receiver operator characteristic curve of 0.945. Besides, some new therapeutic targets and mechanisms (MAGI2-AS3-SPARC/GJA1/CYSLTR1, DLG5-AS1-DEFB1, and RHPN1-AS1-CDC45/ORC) were also revealed. Conclusion The risk score system established in this study may provide a novel reliable method to identify PCa patients at a high risk of death.
Collapse
|
28
|
Gao Z, Li S, Zhou X, Li H, He S. Knockdown of lncRNA ZNRD1-AS1 inhibits progression of bladder cancer by regulating miR-194 and ZEB1. Cancer Med 2020; 9:7695-7705. [PMID: 32862492 PMCID: PMC7571837 DOI: 10.1002/cam4.3373] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 05/18/2020] [Accepted: 05/25/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Bladder cancer (BC) is a common urinary neoplasm with high incidence worldwide. Long noncoding RNA zinc ribbon domain containing 1 antisense RNA 1 (ZNRD1-AS1) has been reported to be upregulated in BC. However, the exact role of ZNRD1-AS1 as well as its mechanism remains poorly understood. METHODS Zinc ribbon domain containing 1 antisense RNA 1, and its potential downstream genes microRNA-194 (miR-194) and zinc finger E-box binding homeobox 1 (ZEB1) levels were detected via quantitative real-time polymerase chain reaction or western blot. Cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) were detected to assess the influences of ZNRD1-AS1, miR-194 and ZEB1 on BC cells by colony formation, cell counting kit-8 (CCK-8), transwell analysis or western blot. The relationship between miR-194 and ZNRD1-AS1 or ZEB1 was analyzed by luciferase activity analysis. The xenograft experiment was performed to assess the function of ZNRD1-AS1 in vivo. RESULTS Zinc ribbon domain containing 1 antisense RNA 1level was upregulated in BC. ZNRD1-AS1 silence repressed proliferation, migration, invasion and EMT in BC cells. MiR-194 was identified as a target of ZNRD1-AS1, and miR-194 upregulation repressed proliferation, migration, invasion, and EMT by ZNRD1-AS1 sponging. ZEB1 was targeted via miR-194 and its interference impeded proliferation, migration, invasion, and EMT. Moreover, ZNRD1-AS1 regulated ZEB1 expression via miR-194. Besides, inhibition of ZNRD1-AS1 attenuated tumor growth by miR-194/ZEB1 axis in vivo. CONCLUSION Knockdown of ZNRD1-AS1 suppressed BC cell development in vitro and in vivo via targeting miR-194 to regulate ZEB1, indicating a novel avenue for treatment of BC.
Collapse
Affiliation(s)
- Zhixiang Gao
- Department of Imaging And Magnetic Responsethe Luoyang Central Hospital Affiliated to Zhengzhou UniversityLuoyangChina
| | - Shidong Li
- Department of Imaging And Magnetic Responsethe Luoyang Central Hospital Affiliated to Zhengzhou UniversityLuoyangChina
| | - Xufeng Zhou
- Department of Imaging And Magnetic Responsethe Luoyang Central Hospital Affiliated to Zhengzhou UniversityLuoyangChina
| | - Huali Li
- Department of Imaging And Magnetic Responsethe Luoyang Central Hospital Affiliated to Zhengzhou UniversityLuoyangChina
| | - Shasha He
- Department of Imaging And Magnetic Responsethe Luoyang Central Hospital Affiliated to Zhengzhou UniversityLuoyangChina
| |
Collapse
|
29
|
Shen C, Wang Y, Wu Z, Da L, Gao S, Xie L, Qie Y, Wang Y, Zhang Z, Tian D, Hu H. Long noncoding RNAs, ENST00000598996 and ENST00000524265, are correlated with favorable prognosis and act as potential tumor suppressors in bladder cancer. Oncol Rep 2020; 44:1831-1850. [PMID: 33000254 PMCID: PMC7550980 DOI: 10.3892/or.2020.7733] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 06/04/2020] [Indexed: 12/24/2022] Open
Abstract
Bladder cancer (BC) is a serious malignancy worldwide due to its distant metastasis and high recurrence rates. Increasing evidence has indicated that dysregulated long non-coding RNAs (lncRNAs) are involved in tumorigenesis and progression in multiple malignancies. However, their clinical significances, biological functions and molecular mechanisms in BC remain poorly understood. Hence, the present study investigated the expression profile of lncRNAs and mRNAs in five BC tissues and the corresponding adjacent normal specimens using high-throughput RNA sequencing (RNA-seq). A total of 103 differentially expressed (DE) lncRNAs were identified, including 35 upregulated and 68 downregulated ones in BC tissues. Similarly, a total of 2,756 DE-mRNAs were detected, including 1,467 upregulated and 1,289 downregulated. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses, and lncRNA-miRNA-mRNA network analyses suggested that these dysregulated lncRNAs are potentially implicated in the onset and progression of BC. Subsequently, four lncRNAs (upregulated ENST00000433108; downregulated ENST00000598996, ENST00000524265 and ENST00000398461) and two mRNAs (upregulated CCNB1 and CDK1) in 64 pairs of BC and adjacent normal tissues and four BC cell lines were detected using reverse transcription-quantitative PCR and these results were consistent with the sequencing data. Additionally, Fisher's exact test, Kaplan-Meier plots, and Cox regression analyses were used for elucidating the clinical values of ENST00000598996 and ENST00000524265. Furthermore, a receiver operating characteristic curve was constructed to assess their diagnostic values. The low expression level of ENST00000598996 and ENST00000524265 was correlated with unfavorable clinicopathological parameters, and shorter progression-free and overall survival time, whereas, ENST00000433108 was not associated with either. The in vitro functional experiments also revealed that the overexpression of ENST00000598996 and ENST00000524265 decreased the proliferation, migration, and invasion abilities of BC cells. Collectively, the results of the present study provide a novel landscape of lncRNA and mRNA expression profiles in BC. In addition, the results also indicated that ENST00000598996 and ENST00000524265 may serve as tumor suppressors, potential diagnostic biomarkers and prognostic predictors for patients with BC.
Collapse
Affiliation(s)
- Chong Shen
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Yujie Wang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Zhouliang Wu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - La Da
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Shen Gao
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Linguo Xie
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Yunkai Qie
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Yinlei Wang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Zhe Zhang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Dawei Tian
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Hailong Hu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| |
Collapse
|
30
|
Fan H, Liu T, Tian H, Zhang S. TUSC8 inhibits the development of osteosarcoma by sponging miR‑197‑3p and targeting EHD2. Int J Mol Med 2020; 46:1311-1320. [PMID: 32945345 PMCID: PMC7447318 DOI: 10.3892/ijmm.2020.4684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 06/12/2020] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma (OS) is one of the most common malignant bone tumours and generally occurs in children and adolescents. Increasing evidence has demonstrated that dysregulated long non-coding RNAs (lncRNAs) play crucial roles in the progression of various human neoplasms. Among these, tumour suppressor candidate 8 (TUSC8) is a novel lncRNA and has been reported to function as a tumour suppressor in cervical cancer. However, the exact role of TUSC8 in OS remains largely unknown. In the present study, it was observed that TUSC8 was markedly downregulated in OS tissues and cell lines. Functional experiments demonstrated that the overexpression of TUSC8 significantly suppressed the proliferation, migration, invasion and epithelial-mesenchymal transition (EMT), whereas it accelerated the apoptosis of OS cells. Mechanistically, TUSC8 served as a sponge for miR-197-3p, and EH-domain containing 2 (EHD2) was identified as a downstream target molecule of miR-197-3p. Further investigations indicated that EHD2 knockdown significantly reversed the effects on OS cellular processes induced by TUSC8 overexpression. On the whole, these findings indicate that TUSC8 functions as a competing endogenous RNA (ceRNA) to suppress OS cell growth and EMT via the miR-197-3p/EHD2 axis. TUSC8 may thus function as a potential therapeutic target in OS treatment.
Collapse
Affiliation(s)
- Hongwu Fan
- Department of Orthopaedics, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Tong Liu
- Department of Orthopaedics, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Hao Tian
- Department of Orthopaedics, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Shanyong Zhang
- Department of Spine Surgery, The Second Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| |
Collapse
|
31
|
Chang H, Zhang X, Li B, Meng X. MAGI2-AS3 suppresses MYC signaling to inhibit cell proliferation and migration in ovarian cancer through targeting miR-525-5p/MXD1 axis. Cancer Med 2020; 9:6377-6386. [PMID: 32681706 PMCID: PMC7476821 DOI: 10.1002/cam4.3126] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/30/2020] [Accepted: 04/24/2020] [Indexed: 12/14/2022] Open
Abstract
Ovarian cancer (OV) is one of the most lethal gynecological malignance in females, and usually diagnosed at advanced stages. Long noncoding RNAs (lncRNAs) exhibit their crucial functions in modulatory mechanisms of cancers. Substantive studies have proven the anti-tumor role of MAGI2-AS3 in multiple cancers, but the physiological functions of MAGI2-AS3 in OV need more detailed explanations. The current study corroborated that overexpression of MAGI2-AS3 executed inhibitory activity in OV via hindering cell proliferation, cell cycle, migration as well as invasion while promoted apoptosis. Moreover MAGI2-AS3 bound with miR-525-5p and negatively regulated the expression of miR-525-5p. Further studies testified that MXD1 was a downstream target of miR-525-5p and the competing relationship between MAGI2-AS3 and MXD1 were confirmed by RNA pull down. Based on the combination between MAX and MYC, we analyzed the effects of MAGI2-AS3 on MXD1 and MYC, unveiling the competing relationship between MXD1 and MYC for binding to MAX. Finally, we constructed rescue assays to certify that MAGI2-AS3 suppressed the course of OV via enhancing MXD1 expression. In summary, MAGI2-AS3 repressed the progression of OV by targeting miR-525-5p/MXD1 axis, offering a novel insight into understanding OV at the molecular level.
Collapse
Affiliation(s)
- Hua Chang
- Department of Gynecology, the First Hospital of China Medical University, Shenyang, P.R. China
| | - Xue Zhang
- Department of Gynecology, the First Hospital of China Medical University, Shenyang, P.R. China
| | - Baixue Li
- Department of Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R. China
| | - Xiangkai Meng
- Department of Gynecology, the First Hospital of China Medical University, Shenyang, P.R. China
| |
Collapse
|
32
|
Gasparello J, Gambari L, Papi C, Rozzi A, Manicardi A, Corradini R, Gambari R, Finotti A. High Levels of Apoptosis Are Induced in the Human Colon Cancer HT-29 Cell Line by Co-Administration of Sulforaphane and a Peptide Nucleic Acid Targeting miR-15b-5p. Nucleic Acid Ther 2020; 30:164-174. [DOI: 10.1089/nat.2019.0825] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Jessica Gasparello
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Laura Gambari
- Laboratorio RAMSES, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Chiara Papi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Andrea Rozzi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Alex Manicardi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Roberto Corradini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| |
Collapse
|
33
|
Cao C, Zhou S, Hu J. Long noncoding RNA MAGI2‐AS3/miR‐218‐5p/GDPD5/SEC61A1 axis drives cellular proliferation and migration and confers cisplatin resistance in nasopharyngeal carcinoma. Int Forum Allergy Rhinol 2020; 10:1012-1023. [PMID: 32450008 DOI: 10.1002/alr.22562] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Cheng Cao
- Department of Otorhinolaryngology Yinzhou Hospital, affiliated with the Medical School of Ningbo University Ningbo Zhejiang China
| | - Shao Zhou
- Department of Otorhinolaryngology Yinzhou Hospital, affiliated with the Medical School of Ningbo University Ningbo Zhejiang China
| | - Jiandao Hu
- Department of Otorhinolaryngology Yinzhou Hospital, affiliated with the Medical School of Ningbo University Ningbo Zhejiang China
| |
Collapse
|
34
|
Li D, Wang J, Zhang M, Hu X, She J, Qiu X, Zhang X, Xu L, Liu Y, Qin S. LncRNA MAGI2-AS3 Is Regulated by BRD4 and Promotes Gastric Cancer Progression via Maintaining ZEB1 Overexpression by Sponging miR-141/200a. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 19:109-123. [PMID: 31837602 PMCID: PMC6920306 DOI: 10.1016/j.omtn.2019.11.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 10/12/2019] [Accepted: 11/03/2019] [Indexed: 02/08/2023]
Abstract
Long non-coding RNAs (lncRNAs) play critical roles in tumorigenesis and tumor progression. However, the biological function of most lncRNAs remains unknown in human gastric cancer. This study here aims to explore the unknown function of lncRNA MAGI2-AS3 in gastric cancer. First, bioinformatics analysis showed that lncRNA MAGI2-AS3 was overexpressed in gastric cancer tissues, and the overexpression of MAGI2-AS3 has been shown to be associated with poor prognosis in all three independent gastric cancer cohorts (The Cancer Genome Atlas stomach cancer [TCGA_STAD], GEO: GSE62254 and GSE15459). The multivariate analysis indicated that lncRNA MAGI2-AS3 was an independent prognostic factor for both overall survival and disease-free survival of gastric cancer patients. Moreover, MAGI2-AS3 was identified to be an epithelial-mesenchymal transition (EMT)-related lncRNA and was highly co-expressed with ZEB1/2 in both gastric cancer tissues and normal stomach tissues. Loss-of-function and gain-of-function studies showed that lncRNA MAGI2-AS3 could positively regulate ZEB1 expression and the process of cell migration and invasion in gastric cancer. Subcellular location assay showed that lncRNA MAGI2-AS3 was mainly located in the cytoplasm of gastric cancer cells. Bioinformatics analysis and functional experiments revealed that lncRNA MAGI2-AS3 was negatively correlated with miR-141/200a expression and negatively regulated miR-141/200a-3p expression in gastric cancer. Therefore, we speculate that lncRNA MAGI2-AS3 promotes tumor progression through sponging miR-141/200a and maintaining overexpression of ZEB1 in gastric cancer. Nevertheless, we identified that BRD4 is a transcriptional regulator of lncRNA MAGI2-AS3 in gastric cancer. Additionally, our findings highlight that lncRNA MAGI2-AS3 is an ideal biomarker and could be a potential therapeutic target for gastric cancer.
Collapse
Affiliation(s)
- Dandan Li
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China; School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Jingjie Wang
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China; School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Meixin Zhang
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xinhui Hu
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Jiajun She
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xuemei Qiu
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xudong Zhang
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Li Xu
- School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Ying Liu
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China; School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
| | - Shanshan Qin
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China; School of Biomedical Engineering, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China; Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China.
| |
Collapse
|
35
|
LncRNA MAGI2-AS3 is down-regulated in intervertebral disc degeneration and participates in the regulation of FasL expression in nucleus pulposus cells. BMC Musculoskelet Disord 2020; 21:149. [PMID: 32143617 PMCID: PMC7059357 DOI: 10.1186/s12891-020-3086-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 01/22/2020] [Indexed: 12/19/2022] Open
Abstract
Background It is known that Fas ligand (FasL) is involved in the development of intervertebral disc degeneration (IDD). A recent study reported that lncRNA MAGI2-AS3 up-regulated the expression of FasL to promote breast cancer. Therefore, we investigated the roles that lncRNA MAGI2-AS3 might play in IDD. Methods A total of 66 IDD patients (IDD group) and 58 healthy volunteers (Control group) were recruited in this study. Quantitative real-time PCR (qRT-PCR) and western blot were used to investigate gene expression levels. Cell transfections were carried out to analyze gene interactions. The diagnostic value of lncRNA MAGI2-AS3 for IDD was assessed by ROC curve analysis. Results The expression levels of plasma lncRNA MAGI2-AS3 were lower in IDD patients compared to that in the control group. Down-regulation of lncRNA MAGI2-AS3 effectively distinguished IDD patients from the control group. The expression levels of plasma lncRNA MAGI2-AS3 were significantly increased after the treatments. Over-expression of lncRNA MAGI2-AS3 inhibited the expression of FasL, while the silencing of lncRNA MAGI2-AS3 promoted the expression of FasL in nucleus pulposus (NP) cells. Conclusions Therefore, lncRNA MAGI2-AS3 is down-regulated in IDD and participates in the regulation of FasL expression in nucleus pulposus (NP) cells.
Collapse
|
36
|
Sui Y, Chi W, Feng L, Jiang J. LncRNA MAGI2-AS3 is downregulated in non-small cell lung cancer and may be a sponge of miR-25. BMC Pulm Med 2020; 20:59. [PMID: 32138716 PMCID: PMC7059274 DOI: 10.1186/s12890-020-1064-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 01/27/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND This study aimed to investigate the role of lncRNA MAGI2-AS3 in non-small cell lung cancer (NSCLC). METHODS Expression levels of MAGI2-AS3 and RECK mRNA in two types of tissues (non-tumor and NCSLC) were measured by qPCR. To further investigate the interaction between MAGI2-AS3 and RECK, MAGI2-AS3 and RECK expression vectors were transfected into H1993 cells. RESULTS We found that MAGI2-AS3 and RECK were upregulated and positively correlated in NSCLC. In NSCLC cells, MAGI2-AS3 overexpression led to upregulated RECK. Bioinformatics analysis showed that MAGI2-AS3 may bind miR-25, which can directly target RECK. In NSCLC cells, miR-25 overexpression led to downregulated RECK and attenuated the effects of MAGI2-AS3 overexpression, while MAGI2-AS3 and miR-25 failed to affect each other. Cell invasion and migration analysis showed decreased NSCLC cell invasion and migration rates after MAGI2-AS3 and RECK overexpression. MiR-25 showed opposite role and reduced the effects of MAGI2-AS3 overexpression. CONCLUSION Therefore, MAGI2-AS3 may sponge miR-25 to upregulate RECK, thereby inhibiting NSCLC cell invasion and migration. TRIAL REGISTRATION HLJCM20163358592, registered by First Affiliated Hospital, Heilongjiang University of Chinese Medicine at March 3, 2016, prospectively.
Collapse
Affiliation(s)
- Yutong Sui
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Wencheng Chi
- Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang province, China
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Heping Road 26, Harbin, 150040, Heilongjiang province, China
| | - Li Feng
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jiakang Jiang
- Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang province, China.
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Heping Road 26, Harbin, 150040, Heilongjiang province, China.
| |
Collapse
|
37
|
Zhang X, Jiang Y, Xie Y, Leng X, Song F. Comprehensive Analysis of lncRNAs Associated with the Pathogenesis and Prognosis of Gastric Cancer. DNA Cell Biol 2020; 39:299-309. [DOI: 10.1089/dna.2019.5161] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Xianqin Zhang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Yuyou Jiang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Yan Xie
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Xue Leng
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Fangzhou Song
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| |
Collapse
|
38
|
Wang X, Ding Y, Wang J, Wu Y. Identification of the Key Factors Related to Bladder Cancer by lncRNA-miRNA-mRNA Three-Layer Network. Front Genet 2020; 10:1398. [PMID: 32047516 PMCID: PMC6997565 DOI: 10.3389/fgene.2019.01398] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 12/20/2019] [Indexed: 12/29/2022] Open
Abstract
Bladder cancer is the most common malignant tumor of the urinary system, and it has high incidence, high degree of malignancy, and easy recurrence after surgery. The etiology and pathogenesis of bladder cancer are not fully understood, but more and more studies have shown that its development may be regulated by some core molecules. To identify key molecules in bladder cancer, we constructed a three-layer network by merging lncRNA-miRNA regulatory network, miRNA-mRNA regulatory network, and lncRNA-mRNA coexpression network, and further analyzed the topology attributes of the network including the degree, betweenness centrality and closeness centrality of nodes. We found that miRNA-93 and miRNA-195 are controllers for a three-layer network and regulators of numerous target genes associated with bladder cancer. Functional enrichment analysis of their target mRNAs revealed that miRNA-93 and miRNA-195 may be closely related to bladder cancer by disturbing the homeostasis of the cell cycle or HTLV-I infection. In addition, since E2F1 and E2F2 are enriched in various KEGG signaling pathways, we conclude that they are important target genes of miRNA-93, and participate in the apoptotic process by forming a complex with a certain protein or transcription factor activity, sequence-specific DNA binding in bladder cancer. Similarly, AKT3 is an important target gene of miRNA-195, its expression is associated with PI3K-Akt-mTOR signaling pathway and AMPK-mTOR signaling pathway. Therefore, we speculate that AKT3 may participate in proliferation and apoptosis of bladder cancer cells through these pathways, and ultimately affect the biological behavior of tumor cells. Furthermore, through survival analysis, we found that miRNA-195 and miRNA-93 are associated with poor prognosis of bladder cancer. And the Kaplan-Meier curve showed that 24 mRNAs and nine lncRNAs are closely related to overall survival of bladder cancer.
Collapse
Affiliation(s)
- Xiaxia Wang
- School of Science, Jiangnan University, Wuxi, China.,Laboratory of Media Design and Software Technology, Jiangnan University, Wuxi, China
| | - Yanrui Ding
- School of Science, Jiangnan University, Wuxi, China.,Laboratory of Media Design and Software Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Industrial Biotechnology, Jiangnan University, Wuxi, China
| | - Jie Wang
- School of Science, Jiangnan University, Wuxi, China.,Laboratory of Media Design and Software Technology, Jiangnan University, Wuxi, China
| | - Yanyan Wu
- School of Science, Jiangnan University, Wuxi, China.,Laboratory of Media Design and Software Technology, Jiangnan University, Wuxi, China
| |
Collapse
|
39
|
He J, Zhou X, Li L, Han Z. Long Noncoding MAGI2-AS3 Suppresses Several Cellular Processes of Lung Squamous Cell Carcinoma Cells by Regulating miR-374a/b-5p/CADM2 Axis. Cancer Manag Res 2020; 12:289-302. [PMID: 32021443 PMCID: PMC6972594 DOI: 10.2147/cmar.s232595] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/17/2019] [Indexed: 12/20/2022] Open
Abstract
Background Lung squamous cell carcinoma (LUSC) accounts for approximately 30% of all lung cancers that possesses the highest occurrence and mortality in all cancer types. Long noncoding RNAs have been reported to modulate tumor development for several decades. Aim of the Study This research aims to investigate the role of MAGI2-AS3 in LUSC. Methods RT-qPCR tested genes (including MAGI2-AS3, miR-374a/b-5p and CADM2) expression. Cell proliferation was detected by colony formation and EdU assays. Cell migration and invasion were evaluated by transwell assay. Flow cytometry analysis of apoptotic cells and Western blot analysis on apoptosis-related genes were applied to measure cell apoptosis. Nuclear-cytoplasmic fractionation and FISH assay positioned MAGI2-AS3. The combination between miR-374a/b-5p and MAGI2-AS3 (or CADM2) was determined by luciferase reporter assay and RIP assay. Results MAGI2-AS3 inhibited the proliferative, migratory and invasive capability of LUSC cells with upregulated expression. Additionally, MAGI2-AS3 overexpression promoted cell apoptosis. We discovered that MAGI2-AS3 was located in the cytoplasm. Hereafter, we found out that MAGI2-AS3 targeted miR-374a/b-5p. CADM2 was targeted by miR-374a/b-5p. Finally, rescue assays indicated that the promoting effects of miR-374a/b-5p amplification on biological activities were restored by CADM2 addition. Conclusion In conclusion, lncRNA MAGI2-AS3 suppressed LUSC by regulating miR-374a/b-5p/CADM2 axis, which might potentially serve as a therapeutic marker for LUSC patients.
Collapse
Affiliation(s)
- Jia He
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China.,Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, People's Republic of China
| | - Xiaoyun Zhou
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China.,Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, People's Republic of China
| | - Li Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China.,Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, People's Republic of China
| | - Zhijun Han
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing 100730, People's Republic of China.,Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, People's Republic of China
| |
Collapse
|
40
|
Yang J, Hou S, Liang B. LINC00319 promotes migration, invasion and epithelial-mesenchymal transition process in cervical cancer by regulating miR-3127-5p/RPP25 axis. In Vitro Cell Dev Biol Anim 2020; 56:145-153. [PMID: 31942724 DOI: 10.1007/s11626-019-00425-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/22/2019] [Indexed: 12/12/2022]
Abstract
Cervical cancer is among the most prevalent malignancies for women. An increasing number of evidences have been proved that long non-coding RNAs (lncRNAs) play significant role in the initiation and progression of cervical cancer. However, the function of long intergenic non-protein coding RNA 319 (LINC00319) in cervical cancer still remains vague. In this study, our purpose was to investigate the effects of LINC00319 on cell migration, invasion and epithelial-mesenchymal transition (EMT) process in cervical cancer. It confirmed that LINC00319 was highly expressed in tissues and cell lines in cervical cancer. Further, overexpression of LINC00319 accelerates cell migration, invasion and EMT in cervical cancer. Moreover, LINC00319 could bind with miR-3127-5p and negatively regulated its expression. Besides, RPP25 was targeted by miR-3127-5p, and its expression was negatively/positively regulated by miR-3127-5p/LINC00319. Additionally, miR-3127-5p mimics or RPP25 insufficiency could offset the encouraging effects of LINC00319 overexpression on migration, invasion and EMT process in cervical cancer. Generally speaking, LINC00319 promotes migration, invasion and EMT process in cervical cancer by regulating miR-3127-5p/RPP25 axis, which may be conductive to cervical cancer treatment.
Collapse
Affiliation(s)
- Jian Yang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, 26 Daoqian Road, Suzhou city, 215000, Jiangsu province, People's Republic of China
| | - Shunyu Hou
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, 26 Daoqian Road, Suzhou city, 215000, Jiangsu province, People's Republic of China
| | - Baoquan Liang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, 26 Daoqian Road, Suzhou city, 215000, Jiangsu province, People's Republic of China.
| |
Collapse
|
41
|
Li F, Hu Q, Pang Z, Xu X. LncRNA MAGI2-AS3 Upregulates Cytokine Signaling 1 by Sponging miR-155 in Non-Small Cell Lung Cancer. Cancer Biother Radiopharm 2020; 35:72-76. [PMID: 31910343 DOI: 10.1089/cbr.2019.2898] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background: MAGI2-AS3 has been reported to be a tumor suppressor in breast cancer and bladder cancer. This study analyzed the role of MAGI2-AS3 in non-small cell lung cancer (NSCLC). Results: The authors found that MAGI2-AS3 and suppressor of cytokine signaling 1 (SOCS-1) were both downregulated in NSCLC. MAGI2-AS3 and SOCS-1 were significantly and positively correlated in NSCLC tumor tissues. During follow-up, low levels of MAGI2-AS3 and SOCS-1 were found to be significantly correlated with patients' poor survival. In NSCLC cells, MAGI2-AS3 overexpression mediated the upregulated, while miR-155 expression mediated the downregulated SOCS-1 overexpression. RNA binding analysis showed that MAGI2-AS3 may be a sponge of miR-155. Cell proliferation revealed decreased cell proliferation rate of NSCLC cells after MAGI2-AS3 and SOCS-1 overexpression. MiR-155 played an opposite role and reduced the effects of MAGI2-AS3 overexpression. Conclusion: Therefore, MAGI2-AS3 upregulates cytokine signaling 1 by sponging miR-155 to inhibit NSCLC cell proliferation.
Collapse
Affiliation(s)
- Feng Li
- Department of Thoracic Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Qing Hu
- Department of Thoracic Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhonghao Pang
- Department of Thoracic Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xiuquan Xu
- Pharmacy School of Jiangsu University, Zhenjiang, China
| |
Collapse
|
42
|
Gokulnath P, de Cristofaro T, Manipur I, Di Palma T, Soriano AA, Guarracino MR, Zannini M. Long Non-Coding RNA MAGI2-AS3 is a New Player with a Tumor Suppressive Role in High Grade Serous Ovarian Carcinoma. Cancers (Basel) 2019; 11:cancers11122008. [PMID: 31842477 PMCID: PMC6966615 DOI: 10.3390/cancers11122008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/03/2019] [Accepted: 12/06/2019] [Indexed: 12/24/2022] Open
Abstract
High-Grade Serous Ovarian Carcinoma (HGSC) is the most incidental and lethal subtype of epithelial ovarian cancer (EOC) with a high mortality rate of nearly 65%. Recent findings aimed at understanding the pathogenesis of HGSC have attributed its principal source as the Fallopian Tube (FT). To further comprehend the exact mechanism of carcinogenesis, which is still less known, we performed a transcriptome analysis comparing FT and HGSC. Our study aims at exploring new players involved in the development of HGSC from FT, along with their signaling network, and we chose to focus on non-coding RNAs. Non-coding RNAs (ncRNAs) are increasingly observed to be the major regulators of several cellular processes and could have key functions as biological markers, as well as even a therapeutic approach. The most physiologically relevant and significantly dysregulated non-coding RNAs were identified bioinformatically. After analyzing the trend in HGSC and other cancers, MAGI2-AS3 was observed to be an important player in EOC. We assessed its tumor-suppressive role in EOC by means of various assays. Further, we mapped its signaling pathway using its role as a miRNA sponge to predict the miRNAs binding to MAGI2AS3 and showed it experimentally. We conclude that MAGI2-AS3 acts as a tumor suppressor in EOC, specifically in HGSC by sponging miR-15-5p, miR-374a-5p and miR-374b-5p, and altering downstream signaling of certain mRNAs through a ceRNA network.
Collapse
Affiliation(s)
- Priyanka Gokulnath
- IEOS - Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council, via S. Pansini 5, 80131 Napoli, Italy; (P.G.)
- Dpt. Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy
| | - Tiziana de Cristofaro
- IEOS - Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council, via S. Pansini 5, 80131 Napoli, Italy; (P.G.)
| | - Ichcha Manipur
- High Performance Computing and Networking Institute, National Research Council, via P. Castellino 111, 80131 Napoli, Italy
| | - Tina Di Palma
- IEOS - Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council, via S. Pansini 5, 80131 Napoli, Italy; (P.G.)
| | - Amata Amy Soriano
- IEOS - Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council, via S. Pansini 5, 80131 Napoli, Italy; (P.G.)
- Present affiliation: IRCCS Casa Sollievo della Sofferenza, Cancer Stem Cells Unit, ISReMIT, 71013 San Giovanni Rotondo FG, Italy
| | - Mario Rosario Guarracino
- Dpt. Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy
| | - Mariastella Zannini
- IEOS - Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council, via S. Pansini 5, 80131 Napoli, Italy; (P.G.)
- Correspondence:
| |
Collapse
|
43
|
Shen G, Mao Y, Su Z, Du J, Yu Y, Xu F. PSMB8-AS1 activated by ELK1 promotes cell proliferation in glioma via regulating miR-574-5p/RAB10. Biomed Pharmacother 2019; 122:109658. [PMID: 31812014 DOI: 10.1016/j.biopha.2019.109658] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/01/2019] [Accepted: 11/06/2019] [Indexed: 01/22/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) get great involvements in the development of countless cancers. Nonetheless, the deep molecular mechanism by which lncRNA regulates the formation of glioma is unclear. In our study, the expression of PSMB8-AS1 was dramatically upregulated in glioma tissues and cells, further, PSMB8-AS1 silencing restrained cell proliferation in glioma, and the results of PSMB8-AS1 overexpression were opposite. Moreover, PSMB8-AS1 could bind with miR-574-5p, which was low expressed in glioma cells. In addition, RAB10 acted the target gene of miR-574-5p, and PSMB8-AS1 could regulate RAB10 via modulating miR-574-5p. Besides, miR-574-5p inhibitor/mimics remedied the repressive/simulative role of PSMB8-AS1 depletion/overexpression, and RAB10 downregulation/upregulation reversed the encouraging/blocked function caused by miR-574-5p inhibitor/mimics in PSMB8-AS1 depletion/overexpression transfected glioma cells. Additionally, ELK1, a transcription factor, could active PSMB8-AS1 expression. To be concluded, PSMB8-AS1 activated by ELK1 promotes cell proliferation in glioma via regulating miR-574-5p/RAB10, which may be contributory to find new targets to treat glioma.
Collapse
Affiliation(s)
- Gang Shen
- Department of Neurosurgery, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Yuhang Mao
- Department of Neurosurgery, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Zuopeng Su
- Department of Neurosurgery, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Jiarui Du
- Department of Neurosurgery, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Yong Yu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, China.
| | - Fulin Xu
- Department of Neurosurgery, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China.
| |
Collapse
|
44
|
Liu Q, Liu S, Wang X, Zhang J, Liu K. LncRNA MAGI2-AS3 is involved in cervical squamous cell carcinoma development through CDK6 up-regulation. Infect Agent Cancer 2019; 14:37. [PMID: 31832086 PMCID: PMC6865008 DOI: 10.1186/s13027-019-0238-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/21/2019] [Indexed: 01/04/2023] Open
Abstract
Background It has been reported that lncRNA MAGI2-AS3 can promote many types of cancer, such as breast cancer and bladder cancer, by regulating cell behaviors, such a proliferation, invasion, and migration. However, its role in cervical squamous cell carcinoma (CSCC) is unclear. This study aims to investigate the role of MAGI2-AS3 in CSCC. Methods Sixty-four CSCC patients (36 to 68 years, 46.3 ± 5.1 years) out of 136 CSCC patients admitted by Shengjing hospital affiliated to China Medical University from June 2010 to October 2013 were included in the present study. Among the 64 enrolled patients, 20 were HPV-16 positive cases, 24 were HPV-18 positive cases and 20 were HPV negative. CSCC and non-tumor biopsies from CSCC patients as well as C-33A cell lines were used. Cells were transfected with MAGI2-AS3 and CDK6 expression vectors as well as with MAGI2-AS3 siRNA to analyze gene interactions. Cell cycle analysis was performed to analyze the effects of transfections on cell cycle progression. qPCR and western blot were applied to analyze gene expression. Paired t-test and ANOVA (one-way) combined with Tukey test were used for data comparisons. Survival analysis was performed by plotting and comparing survival curves. Results qRT-PCR results showed that CDK6 and MAGI2-AS3 were both up-regulated in CSCC and positively correlated with each other. MAGI2-AS3 and CDK6 expression was not significantly affected by HPV infections. High levels of MAGI2-AS3 were associated with the poor survival of CSCC patients. In CSCC cells, MAGI2-AS3 over-expression up-regulated CDK6, while MAGI2-AS3 siRNA down-regulated CDK6. In CCK-8 assay, MAGI2-AS3 and CDK6 over-expression led to increased proliferation rate of CSCC cells by reducing CDK6 levels, while MAGI2-AS3 siRNA didn’t. In addition, CDK6 over-expression attenuated the effect of MAGI2-AS3 siRNA silencing. Conclusions In conclusion, MAGI2-AS3 promoted CSCC cell proliferation by up-regulating CDK6.
Collapse
Affiliation(s)
- Qifang Liu
- Department of obstetrics and gynecology, Shengjing hospital affiliated to China medical university, No. 36 of Sanhao Street, Heping District, Shenyang, 110004 Liaoning China
| | - Shuang Liu
- Department of obstetrics and gynecology, Shengjing hospital affiliated to China medical university, No. 36 of Sanhao Street, Heping District, Shenyang, 110004 Liaoning China
| | - Xiaoying Wang
- Department of obstetrics and gynecology, Shengjing hospital affiliated to China medical university, No. 36 of Sanhao Street, Heping District, Shenyang, 110004 Liaoning China
| | - Jin Zhang
- Department of obstetrics and gynecology, Shengjing hospital affiliated to China medical university, No. 36 of Sanhao Street, Heping District, Shenyang, 110004 Liaoning China
| | - Kuiran Liu
- Department of obstetrics and gynecology, Shengjing hospital affiliated to China medical university, No. 36 of Sanhao Street, Heping District, Shenyang, 110004 Liaoning China
| |
Collapse
|
45
|
Zhang X, Zhuang J, Liu L, He Z, Liu C, Ma X, Li J, Ding X, Sun C. Integrative transcriptome data mining for identification of core lncRNAs in breast cancer. PeerJ 2019; 7:e7821. [PMID: 31608179 PMCID: PMC6786248 DOI: 10.7717/peerj.7821] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/03/2019] [Indexed: 12/14/2022] Open
Abstract
Background Cumulative evidence suggests that long non-coding RNAs (lncRNAs) play an important role in tumorigenesis. This study aims to identify lncRNAs that can serve as new biomarkers for breast cancer diagnosis or screening. Methods First, the linear fitting method was used to identify differentially expressed genes from the breast cancer RNA expression profiles in The Cancer Genome Atlas (TCGA). Next, the diagnostic value of all differentially expressed lncRNAs was evaluated using a receiver operating characteristic (ROC) curve. Then, the top ten lncRNAs with the highest diagnostic value were selected as core genes for clinical characteristics and prognosis analysis. Furthermore, core lncRNA-mRNA co-expression networks based on weighted gene co-expression network analysis (WGCNA) were constructed, and functional enrichment analysis was performed using the Database for Annotation, Visualization and Integrated Discovery (DAVID). The differential expression level and diagnostic value of core lncRNAs were further evaluated by using independent data set from Gene Expression Omnibus (GEO). Finally, the expression status and prognostic value of core lncRNAs in various tumors were analyzed based on Gene Expression Profiling Interactive Analysis (GEPIA). Results Seven core lncRNAs (LINC00478, PGM5-AS1, AL035610.1, MIR143HG, RP11-175K6.1, AC005550.4, and MIR497HG) have good single-factor diagnostic value for breast cancer. AC093850.2 has a prognostic value for breast cancer. AC005550.4 and MIR497HG can better distinguish breast cancer patients in early-stage from the advanced-stage. Low expression of MAGI2-AS3, LINC00478, AL035610.1, MIR143HG, and MIR145 may be associated with lymph node metastasis in breast cancer. Conclusion Our study provides candidate biomarkers for the diagnosis and prognosis of breast cancer, as well as a bioinformatics basis for the further elucidation of the molecular pathological mechanism of breast cancer.
Collapse
Affiliation(s)
- Xiaoming Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Jing Zhuang
- Department of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Lijuan Liu
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, Shandong, China
| | - Zhengguo He
- Health Science Center, Columbus Technical College, Columbus, GA, the United States of America
| | - Cun Liu
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Xiaoran Ma
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Jie Li
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Xia Ding
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Changgang Sun
- Department of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| |
Collapse
|
46
|
Wang R, Li Y, Du P, Zhang X, Li X, Cheng G. Hypomethylation of the lncRNA SOX21-AS1 has clinical prognostic value in cervical cancer. Life Sci 2019; 233:116708. [DOI: 10.1016/j.lfs.2019.116708] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 07/27/2019] [Accepted: 07/28/2019] [Indexed: 12/31/2022]
|
47
|
Pu J, Wang J, Wei H, Lu T, Wu X, Wu Y, Shao Z, Luo C, Lu Y. lncRNA MAGI2-AS3 Prevents the Development of HCC via Recruiting KDM1A and Promoting H3K4me2 Demethylation of the RACGAP1 Promoter. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 18:351-362. [PMID: 31629962 PMCID: PMC6807294 DOI: 10.1016/j.omtn.2019.08.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/31/2019] [Accepted: 08/17/2019] [Indexed: 12/24/2022]
Abstract
Accumulating studies have implicated the role of long non-coding RNAs (lncRNAs) in the pathogenesis of hepatocellular carcinoma (HCC) through the regulating transcription and mRNA stability. A recent report has linked Rac GTPase-activating protein 1 (RACGAP1) to the early recurrence of HCC. The current study aimed to ascertain whether MAGI2 antisense RNA 3 (MAGI2-AS3) influences the development of HCC by regulating RACGAP1. MAGI2-AS3 expression was initially quantified in both the HCC tissues and cell lines. In order to elucidate the role of MAGI2-AS3 in the development of HCC, MAGI2-AS3 was overexpressed or silenced in HCC cells after which cell proliferation, apoptosis, invasion, and migration were evaluated. Chromatin immunoprecipitation (ChIP), RNA immunoprecipitation (RIP), and biotin-labeled RNA pull-down assays were conducted to determine the interactions among MAGI2-AS3, KDM1A, and RACGAP1. Finally, the effects of MAGI2-AS3 and RACGAP1 on the tumorigenesis of transplanted HCC cells in nude mice were evaluated. MAGI2-AS3 was found to be under-expressed in HCC tissues and cell lines. The restoration of MAGI2-AS3 was identified to markedly inhibit HCC cell growth, migrating ability, and invasiveness, and promote cell apoptosis. Interaction between MAGI2-AS3 and KDM1A was identified. KDM1A recruited by MAGI2-AS3 was found to promote H3K4me2 demethylation at the RACGAP1 promoter, which ultimately decreased the expression of RACGAP1. We also identified that RACGAP1 knockdown eliminated the stimulatory effects of MAGI2-AS3 silencing on the malignant phenotypes of HCC cells. Additionally, the expression of MAGI2-AS3 reduced tumor weight and size in HCC transplanted nude mice. Taken together, the key observations of the current study demonstrate the potential of MAGI2-AS3 as a tumor suppressor and a promising target for HCC treatment.
Collapse
Affiliation(s)
- Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China.
| | - Jianchu Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Huamei Wei
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Tao Lu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Xianjian Wu
- Graduate College, Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Yi Wu
- Graduate College, Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Zesheng Shao
- Graduate College, Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Chunying Luo
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| | - Yan Lu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China
| |
Collapse
|
48
|
Zheng Y, Lu S, Xu Y, Zheng J. Long non-coding RNA AGAP2-AS1 promotes the proliferation of glioma cells by sponging miR-15a/b-5p to upregulate the expression of HDGF and activating Wnt/β-catenin signaling pathway. Int J Biol Macromol 2019; 128:521-530. [DOI: 10.1016/j.ijbiomac.2019.01.121] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/22/2019] [Accepted: 01/22/2019] [Indexed: 02/06/2023]
|
49
|
LincRNA-p21 suppresses glutamine catabolism and bladder cancer cell growth through inhibiting glutaminase expression. Biosci Rep 2019; 39:BSR20182372. [PMID: 30902882 PMCID: PMC6465205 DOI: 10.1042/bsr20182372] [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: 12/16/2018] [Revised: 02/09/2019] [Accepted: 03/12/2019] [Indexed: 12/22/2022] Open
Abstract
Long intergenic non-coding RNA p21 (lincRNA-p21) is down-regulated in some solid tumors. Glutamine catabolism plays an important role in cancer development. However, the role of lincRNA-p21 and its association with glutamine catabolism remain unknown in bladder cancer (BC). In the present study, we investigated the involvement of lincRNA-p21 and glutamine catabolism in BC cell growth and found that ectopic linRNA-p21 expression reduced the proliferation and growth of BIU87 and 5637 cells. Opposite results were observed in lincRNA-p21 silenced J82 and T24 cells. The expression of glutaminase (GLS), intracellular level of glutamate and α-Ketoglutarate (α-KG) were negatively regulated by lincRNA-p21. GLS overexpression reversed the suppressive function of lincRNA-p21 on BC cell growth and proliferation. In contrast, GLS reduction by siRNA blunted the viability of lincRNA-p21 lowly expressed BC cells. Furthermore, lincRNA-p21 and GLS abundance dictated the sensitivity of BC cells to bis-2-(5-phenylacetamido-1,2,4-thiadiazol-2-yl)ethyl sulfide (BPTES) treatment. Importantly, reduced lincRNA-p21 expression and increased GLS mRNA level were observed in BC tissues compared with the normal tissues. Our results demonstrate that lincRNA-p21 suppresses the BC cell growth through inhibiting GLS and glutamine catabolism. Targeting this cascade may be a promising treatment strategy for BC patients.
Collapse
|