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Zhu W, Tan L, Ma T, Yin Z, Gao J. Long noncoding RNA SNHG8 promotes chemoresistance in gastric cancer via binding with hnRNPA1 and stabilizing TROY expression. Dig Liver Dis 2022; 54:1573-1582. [PMID: 35354542 DOI: 10.1016/j.dld.2022.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/30/2022]
Abstract
AIMS To determine SNHG8's function and potential mechanisms in gastric cancer (GC) chemoresistance. METHODS We assessed SNHG8 expression in GC cell lines, GC/CDDP cell lines (cell lines treated with cisplatin), and 42 GC tissues and SNHG8 levels in the lncRNA microarray analysis of AGS/CDDP and AGS cell lines. We also examined GC cell viability in vivo and in vitro and its apoptosis level with Flow cytometry assays. SNHG8 was localized in subcells using fluorescence in situ hybridization (FISH) and cell fraction assays, hnRNPA1's link to SNHG8 was determined utilizing RNA immunoprecipitation (RIP) and FISH assays, gene expression profiles were assessed employing RNA transcriptome sequencing, and hnRNPA1's relationship with TROY was ascertained with the RIP assay. RESULTS SNHG8 increased significantly in GC cell lines and GC tissues. However, a decrease in its expression promoted sensitivity to chemotherapy and inhibited DNA damage repair in vitro and in vivo. SNHG8 appeared to regulate TROY expression via linking with hnRNPA1. Reducing TROY levels considerably stimulated GC cell chemosensitivity, whereas heightening them partially rescued the rate of chemoresistance caused by downregulating SNHG8. CONCLUSION In summary, the "SNHG8/hnRNPA1-TROY" axis is crucial to GC chemoresistance.
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Affiliation(s)
- Wenzhong Zhu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lulu Tan
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tiantian Ma
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhijie Yin
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jinbo Gao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Liao LM, Gu ZB, Fang M, Yao GJ, Huang L. Overexpression of Karyopherin α2 in small cell carcinoma of the cervix correlates with poor prognosis. Int J Clin Exp Pathol 2022; 15:241-246. [PMID: 35795090 PMCID: PMC9253809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Cervical small cell carcinoma (SCCC) is uncommon and little is known about its molecular markers. Karyopherin α2 (KPNA2) has been demonstrated in a variety of malignancies. Our objective was to determine whether the KPNA2 level is predictive of clinical outcome in patients with SCCC. METHODS We detected KPNA2 expression by immunohistochemistry in SCCC tumors from 62 patients. The staining results were evaluated by H-score. The correlation among KPNA2 expression level, clinical characteristics, and prognosis was analyzed. RESULTS KPNA2 expression was detected in tumor tissue from 55 patients with SCCC (55/62, 89%). High KPNA2 expression correlated significantly with International Federation of Gynecology and Obstetrics staging (P=0.035), tumor size (P=0.019), poorer overall survival (OS) (P=0.008), and poorer disease-free survival (P=0.004) compared to low KPNA2 expression. Multivariate analysis showed that KPNA2 expression level (P=0.037) and tumor size (P=0.046) were independent prognostic factors of OS. CONCLUSIONS KPNA2 may be a molecular marker and indicator of prognosis in SCCC.
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Affiliation(s)
- Ling-Min Liao
- The Second Afiliated Hospital of Nanchang UniversityNanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer ResearchJiangxi, China
| | - Zhen-Bang Gu
- The Second Afiliated Hospital of Nanchang UniversityNanchang, China
- Medical School of Nanchang UniversityNanchang, China
| | - Ming Fang
- The Second Afiliated Hospital of Nanchang UniversityNanchang, China
- Yangxin People’s Hospital of Hubei ProvinceChina
| | - Gong-Ji Yao
- The Second Afiliated Hospital of Nanchang UniversityNanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer ResearchJiangxi, China
| | - Long Huang
- The Second Afiliated Hospital of Nanchang UniversityNanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer ResearchJiangxi, China
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Zou M, Shen J, Wu Y, Zhong C, Fang L, Zhu F, Duan S. Dysregulation of miR-411 in cancer: Causative factor for pathogenesis, diagnosis and prognosis. Biomed Pharmacother 2022; 149:112896. [PMID: 35358797 DOI: 10.1016/j.biopha.2022.112896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 11/20/2022] Open
Abstract
MiRNA accounts for 1-3% of genes but regulates more than 30% of gene expression in humans. This article analyzes the current deficiencies and challenges of miR-411 research and looks forward to the prospects of miR-411 in cancer. MiR-411 is a non-coding RNA located on chromosome 14. MiR-411 is abnormally expressed in a variety of cancers. The dysregulation of miR-411 can affect cancer cell proliferation, invasion, migration, apoptosis, colony formation, etc. miR-411 can be regulated by different lncRNAs and circRNAs. By targeting multiple genes, miR-411 participates in the activation of the MAPK signaling pathway, PI3K/AKT/mTOR signaling pathway, p53 signaling pathway, Ras signaling pathway, NF-κB signaling pathway, and Wnt/β-catenin signaling pathway. The expression of miR-411 is related to the diagnosis, prognosis, and sensitivity of drugs in cancer patients. In conclusion, this work outlines the molecular mechanisms and cellular functions of aberrant expression of miR-411 and its target genes in cancer to reveal its potential value in diagnosis, prognosis, and drug sensitivity.
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Sharma U, Murmu M, Barwal TS, Tuli HS, Jain M, Prakash H, Kaceli T, Jain A, Bishayee A. A Pleiotropic Role of Long Non-Coding RNAs in the Modulation of Wnt/β-Catenin and PI3K/Akt/mTOR Signaling Pathways in Esophageal Squamous Cell Carcinoma: Implication in Chemotherapeutic Drug Response. Curr Oncol 2022; 29:2326-49. [PMID: 35448163 PMCID: PMC9031703 DOI: 10.3390/curroncol29040189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/19/2022] [Accepted: 03/20/2022] [Indexed: 02/06/2023] Open
Abstract
Despite the availability of modern techniques for the treatment of esophageal squamous cell carcinoma (ESCC), tumor recurrence and metastasis are significant challenges in clinical management. Thus, ESCC possesses a poor prognosis and low five-year overall survival rate. Notably, the origin and recurrence of the cancer phenotype are under the control of complex cancer-related signaling pathways. In this review, we provide comprehensive knowledge about long non-coding RNAs (lncRNAs) related to Wnt/β-catenin and phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway in ESCC and its implications in hindering the efficacy of chemotherapeutic drugs. We observed that a pool of lncRNAs, such as HERES, TUG1, and UCA1, associated with ESCC, directly or indirectly targets various molecules of the Wnt/β-catenin pathway and facilitates the manifestation of multiple cancer phenotypes, including proliferation, metastasis, relapse, and resistance to anticancer treatment. Additionally, several lncRNAs, such as HCP5 and PTCSC1, modulate PI3K/Akt/mTOR pathways during the ESCC pathogenesis. Furthermore, a few lncRNAs, such as AFAP1-AS1 and LINC01014, block the efficiency of chemotherapeutic drugs, including cisplatin, 5-fluorouracil, paclitaxel, and gefitinib, used for ESCC treatment. Therefore, this review may help in designing a better therapeutic strategy for ESCC patients.
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Luan Q, Yang R, Lin L, Li X. SNHG8 promotes cell proliferation, migration, and invasion of nasopharyngeal carcinoma cells as an oncogene through miR-588/HMGA2 axis. Can J Physiol Pharmacol 2022; 100:158-166. [PMID: 35080988 DOI: 10.1139/cjpp-2021-0149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Nasopharyngeal carcinoma (NC) poses a threat to the life of patients. Long non-coding RNA (LncRNA) is a novel kind of non-coding RNA, which plays a pivotal role through sponge microRNA (miRNA). Abnormal expression of small nucleolar RNA host gene 8 (SNHG8) is involved in various tumors; however, the role of SNHG8 in NC remains unknown. Quantitative real-time PCR (qRT-PCR) and Western blotting was employed to detect the expression levels of SNHG8, miR-588, and high mobility group A2 (HMGA2). Cell proliferation, migration, and invasion were analyzed by CCK-8 and transwell assays. miR-588 binding sites in SNHG8 were predicted by LncBase analysis. Luciferase reporter and RNA pull-down assay were used to confirm the interaction of SNHG8 and miR-588. SNHG8 was highly expressed in NC cells. The prognosis of the patients with NC in the high expression levels of SNHG8 was poorer than that in the low expression levels. The expression of SNHG8 was closely related to tumor size, TNM stage, and distal metastasis. Knockdown of SNHG8 inhibited cell proliferation, migration, and invasion of NC. SNHG8 targeted miR-588. Inhibition of miR-588 could partially reverse the knockdown of SNHG8 in NC cells, and miR-588 targeted HMGA2. In conclusion, SNHG8 promotes proliferation, migration, and invasion of NC cells through miR-588/HMGA2 in NC as an oncogene.
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Affiliation(s)
- Qiang Luan
- Department of Otolaryngology, Traditional Chinese Medicine Hospital of Muping District of Yantai City, No. 505 Government Street, Yantai, 264100, Shangdong province, China
| | - Ruifang Yang
- Department of Medical Laboratory, Yantai Affiliated Hospital of Binzhou Medical College, No. 717 Jinbu Street, Yantai, 264100, Shangdong province, China
| | - Lejun Lin
- Department of Nuclear Medicine, Yantai Yuhuangding Hospital, No. 20 Yuhuangding East Road, Yantai, 264100, Shangdong province, China
| | - Xuecheng Li
- Department of General Surgery, Traditional Chinese Medicine Hospital of Muping District of Yantai City, No. 505 Government Street, Yantai, 264100, Shangdong province, China
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Abstract
Gout can affect the quality of life of patients due to monosodium urate monohydrate (MSU) crystals. Numerous studies have proposed that long noncoding RNAs (lncRNAs) regulate gout. We aimed to reveal the function of lncRNA small nucleolar RNA host gene 8 (SNHG8) in acute gouty arthritis (GA). A GA mouse model was established by injection of MSU into footpads. The levels of SNHG8, miR-542-3p and adaptor-related protein complex 3 subunit delta 1 (AP3D1) in footpads were detected via polymerase chain reaction analysis. Hematoxylin–eosin staining revealed the paw swelling in mice. Enzyme-linked immunosorbent assay and western blot analysis were applied to determine the concentrations of proinflammatory cytokines. SNHG8 expression was identified to be upregulated after MSU treatment. Ablation of SNHG8 decreased the MSU-induced enhancement of paw swelling and foot thickness. In addition, SNHG8 depletion decreased the protein levels of proinflammatory factors in GA mice. Mechanically, SNHG8 was verified to be a sponge of miR-542-3p, and miR-542-3p targeted AP3D1 3ʹ untranslated region. SNHG8 competitively bound with miR-542-3p to upregulate AP3D1 expression. Finally, results of rescue assays illustrated that AP3D1 upregulation offset the SNHG8-mediated inhibition on paw swelling and protein levels of proinflammatory factors in GA mice. In conclusion, SNHG8 accelerates acute GA development by upregulating AP3D1 in an miR-542-3p-dependent way in mice, providing an effective therapeutic approach to treat acute GA.
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Affiliation(s)
- Li Fang
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan, Zhejiang, China
| | - Xiangfeng Xu
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan, Zhejiang, China
| | - Yao Lu
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan, Zhejiang, China
| | - Yanying Wu
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan, Zhejiang, China
| | - Jiajia Li
- Department of Rheumatology and Immunology, Zhoushan Hospital of Zhejiang Province, Zhoushan, Zhejiang, China
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Zhuo Z, Hua RX, Zhang H, Lin H, Fu W, Zhu J, Cheng J, Zhang J, Li S, Zhou H, Xia H, Liu G, Jia W, He J. METTL14 gene polymorphisms decrease Wilms tumor susceptibility in Chinese children. BMC Cancer 2021; 21:1294. [PMID: 34863142 PMCID: PMC8643011 DOI: 10.1186/s12885-021-09019-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/18/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Wilms tumor is a highly heritable malignancy. Aberrant METTL14, a critical component of N6-methyladenosine (m6A) methyltransferase, is involved in carcinogenesis. The association between genetic variants in the METTL14 gene and Wilms tumor susceptibility remains to be fully elucidated. We aimed to assess whether variants within this gene are implicated in Wilms tumor susceptibility. METHODS A total of 403 patients and 1198 controls were analyzed. METTL14 genotypes were assessed by TaqMan genotyping assay. RESULT Among the five SNPs analyzed, rs1064034 T > A and rs298982 G > A exhibited a significant association with decreased susceptibility to Wilms tumor. Moreover, the joint analysis revealed that the combination of five protective genotypes exerted significantly more protective effects against Wilms tumor than 0-4 protective genotypes with an OR of 0.69. The stratified analysis further identified the protective effect of rs1064034 T > A, rs298982 G > A, and combined five protective genotypes in specific subgroups. The above significant associations were further validated by haplotype analysis and false-positive report probability analysis. Preliminary mechanism exploration indicated that rs1064034 T > A and rs298982 G > A are correlated with the expression and splicing event of their surrounding genes. CONCLUSIONS Collectively, our results suggest that METTL14 gene SNPs may be genetic modifiers for the development of Wilms tumor.
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Affiliation(s)
- Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Rui-Xi Hua
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Huizhu Zhang
- Department of Gynaecology and Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China
| | - Huiran Lin
- Faculty of Medicine, Macau University of Science and Technology, Macau, 999078, China
| | - Wen Fu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Jinhong Zhu
- Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, Harbin, 150040, Heilongjiang, China
| | - Jiwen Cheng
- Department of Pediatric Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China
| | - Jiao Zhang
- Department of Pediatric Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Suhong Li
- Department of Pathology, Children Hospital and Women Health Center of Shanxi, Shannxi, Taiyuan, 030013, China
| | - Haixia Zhou
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Guochang Liu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China
| | - Wei Jia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China.
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Road, Guangzhou, 510623, Guangdong, China.
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Abstract
Background Numerous studies have demonstrated that noncoding RNAs are involved in choriocarcinoma (CC). The competing endogenous RNA (ceRNA) network plays an important role in the occurrence and development of carcinoma. However, the involvement of the ceRNA network in CC remains unclear. The current study aimed to investigate the regulatory mechanism of ceRNA in CC. Material/Methods We downloaded the messenger RNAs (mRNAs) expression profiles (GSE20510 and GSE65654) and microRNAs (miRNAs) expression profiles (GSE32346 and GSE130489) from GEO datasets. The limma package of R software was used to identify differentially expressed RNAs (DERNAs). Then, we performed functional annotation of the differentially expressed mRNAs (DEmRNAs). TargetScan, miRDB, miRWalk, and Starbase were used to construct a CC-specific ceRNA network and select key molecules. Results The results identified a total of 177 DEmRNAs and 189 differentially expressed miRNAs (DEmiRNAs) between the trophoblast and CC cell line samples. Ten differentially expressed lncRNAs (DElncRNAs) were obtained based on experimental studies. The DEmRNAs were mainly enriched in cell proliferation, positive regulation of the apoptotic process, and cell death. A total of 10 genes were ascertained as hub genes. Based on DEmRNAs, DEmiRNAs, and DElncRNAs, a CC-specific ceRNA network was established. Five DElncRNAs, 15 DEmiRNAs, and 45 DEmRNAs were identified. In addition, LINC00261, MEG3, MALAT1, H19, and OGFRP1 were identified as 5 key lncRNAs in choriocarcinoma. Conclusions This study provides novel insights into CC mechanisms and identified potential therapeutic targets for CC.
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Affiliation(s)
- Qianxia Tan
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland)
| | - Zhihui Tan
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland)
| | - Junliang Liu
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland)
| | - Yanqun Mo
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland)
| | - Huining Liu
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland)
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Qian J, Lei X, Sun Y, Zheng L, Li J, Zhang S, Zhang L, Li W, Shi J, Jia W, Tang T. Long non-coding RNA SNHG8 enhances triple-negative breast cancer cell proliferation and migration by regulating the miR-335-5p/PYGO2 axis. Biol Direct 2021; 16:13. [PMID: 34362407 PMCID: PMC8349079 DOI: 10.1186/s13062-021-00295-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/28/2021] [Indexed: 12/30/2022] Open
Abstract
Background Growing evidence has demonstrated that long non-coding RNAs (lncRNAs) can function as modulators in the development of triple-negative breast cancer (TNBC). However, the function of lncRNA small nucleolar RNA host gene 8 (SNHG8) in TNBC remains unclear. Therefore, our study aimed at investigating the role of SNHG8 in the proliferation and migration of TNBC cells. Methods SNHG8 expression was evaluated using RT-qPCR assay. Cell proliferation and migration were assessed by EdU, colony formation and Transwell assays. The levels of proteins related to EMT process were examined by western blot assay. The interaction among SNHG8, miR-335-5p and pygopus family PHD finger 2 (PYGO2) was detected by RIP assay, RNA pull down assay and luciferase reporter assay. Results SNHG8 expression was significantly up-regulated in TNBC cells. SNHG8 silencing obviously inhibited TNBC cell proliferation, migration and EMT process. Moreover, SNHG8 acted as a sponge to sequester miR-335-5p in TNBC cells. Besides, PYGO2 was proven as a target gene of miR-335-5p, and SNHG8 promoted TNBC cell proliferation, migration and EMT process through regulating miR-335-5p and PYGO2. Conclusions Totally, our study indicated that SNHG8 promoted TNBC cell proliferation and migration by regulating the miR-335-5p/PYGO2 axis.
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Affiliation(s)
- Jintao Qian
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Xinhan Lei
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Yue Sun
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Lu Zheng
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Jia Li
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Shuai Zhang
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Lei Zhang
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Wanwan Li
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Jianing Shi
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China
| | - Wenjun Jia
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
| | - Tong Tang
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, Anhui, China.
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Yuan X, Yan Y, Xue M. Small nucleolar RNA host gene 8: A rising star in the targets for cancer therapy. Biomed Pharmacother 2021; 139:111622. [PMID: 33894626 DOI: 10.1016/j.biopha.2021.111622] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/02/2021] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are a group of transcripts that have been considered essential participants in cancer pathogenesis and progression over the past few decades. Small nucleolar RNA host gene 8 (SNHG8) is a newly discovered lncRNA that belongs to the SNHG family, a group of transcripts that can be processed into small nucleolar RNAs and exert important biological functions. As an oncogenic factor, SNHG8 is upregulated in multiple cancer types. Herein, we summarize the biological role of SNHG8 in different cancer types and the underlying mechanisms related to the interaction between SNHG8 and microRNAs, mRNAs, and proteins. In addition, this study emphasizes the clinical value of SNHG8 in cancer, hoping to provide new insights into cancer diagnosis, prognosis, and treatment.
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Affiliation(s)
- Xin Yuan
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yuheng Yan
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Miaomiao Xue
- Department of General Dentistry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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Yu B, Wang B, Wu Z, Wu C, Ling J, Gao X, Zeng H. LncRNA SNHG8 Promotes Proliferation and Inhibits Apoptosis of Diffuse Large B-Cell Lymphoma via Sponging miR-335-5p. Front Oncol 2021; 11:650287. [PMID: 33816305 PMCID: PMC8017314 DOI: 10.3389/fonc.2021.650287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 02/04/2021] [Indexed: 01/16/2023] Open
Abstract
Long-chain non-coding RNAs (LncRNAs) are expressed in diffuse large B-cell lymphoma (DLBCL) tissues and have played a regulatory role in DLBCL with a cancer-promoting effect. In this study, the role of LncRNA SNHG8 in the regulation of DLBCL cells is investigated, and its underlying mechanism is explored. The database of the Gene Expression Profiling Interactive Analysis (GEPIA) was searched, and the expression of SNHG8 in DLBCL and normal tissues was examined. The expression of SNHG8 was evaluated in several DLBCL cell lines and a normal lymphocyte cell line. It was found that SNHG8 was overexpressed in DLBCL tissues and cells in comparison with their normal counterparts. The short hairpin RNA (shRNA) plasmids of SNHG8 were transfected into DLBCL cells to knockdown the expression of SNHG8, followed by assays of proliferation, colony formation, apoptosis, and related protein expression. The results showed that the knockdown of SNHG8 significantly inhibited DLBCL cell proliferation and colony formation while promoting cell apoptosis. Moreover, the knockdown of SNHG8 reduced the expression of Ki-67, proliferating cell nuclear antigen (PCNA), and Bcl-2 and enhanced the expression of Bax and cleaved caspase 3/9. MiR-335-5p was predicted to be a potential target of SNHG8 by using the bioinformatics analysis, and the interaction between the two was validated by using the dual luciferase assay. In addition, the knockdown of SNHG8 increased the level of miR-335-5p, whereas miR-335-5p mimic decreased the expression of SNHG8. Finally, U2932 cells were co-transfected with or without sh-SNHG8 and miR-335-5p inhibitors, whose proliferation, colony formation, and apoptosis were determined subsequently. It was demonstrated that the presence of an miR-335-5p inhibitor partially canceled the inhibitory effects of the knockdown of SNHG8 on DLBCL cell proliferation and colony formation and the stimulating effects of the knockdown of SNHG8 on cell apoptosis. Taken together, our study suggests that lncRNA SNHG8 exerts a cancer-promoting effect on DLBCL via targeting miR-335-5p.
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Affiliation(s)
- Bing Yu
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Bo Wang
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zhuman Wu
- Emergency Department, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Chengnian Wu
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Juan Ling
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaoyan Gao
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Huilan Zeng
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, China
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Shi Z, Zhang H, Jie S, Yang X, Huang Q, Mao Y, Zhang Y. Long non-coding RNA SNHG8 promotes prostate cancer progression through repressing miR-384 and up-regulating HOXB7. J Gene Med 2021; 23:e3309. [PMID: 33450101 DOI: 10.1002/jgm.3309] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Multiple long non-coding RNAs (lncRNAs) have been demonstrated to function as vital regulators in the progression of prostate cancer (PCa). In the present study, we aimed to probe the function of lncRNA small nucleolar RNA host gene 8 (SNHG8) in PCa progression. METHODS A quantitative real-time polymerase chain reaction and western blotting were utilized to measure SNHG8, microRNA-384 (miR-384) and homeobox B7 (HOXB7) expression. Call-couting kit-8 and bromodeoxyuridine experiments were employed to evaluate PCa cell proliferation. Transwell experiments were performed to detect PCa cell migration and invasion. Dual-luciferase reporter experiments and RNA immunoprecipitation experiments were conducted to determine the targeting relationships among miR-384, SNHG8 and HOXB7. RESULTS SNHG8 was up-regulated in PCa tissues and cells. Silencing of SNHG8 suppressed the proliferation, migration and invasion of PCa cells. SNHG8 functioned as a molecular sponge to repress miR-384. The effects of SNHG8 knockdown on PCa cell proliferation, migration and invasion were counteracted by miR-384 inhibition. HOXB7 was confirmed to be a target gene of miR-384. SNHG8 knockdown repressed HOXB7 expression via targeting miR-384. CONCLUSIONS SNHG8 promotes PCa cell proliferation, migration and invasion via decoying miR-384 and up-regulating HOXB7.
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Affiliation(s)
- Zhenfeng Shi
- Department of Urology Center, People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, China
| | - Hao Zhang
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Situ Jie
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xiaojian Yang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Qunxiong Huang
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Yunhua Mao
- Department of Urology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Yan Zhang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
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Tian J, Liu Y, Wang Z, Zhang S, Yang Y, Zhu Y, Yang C. LncRNA Snhg8 attenuates microglial inflammation response and blood-brain barrier damage in ischemic stroke through regulating miR-425-5p mediated SIRT1/NF-κB signaling. J Biochem Mol Toxicol 2021; 35:e22724. [PMID: 33491845 DOI: 10.1002/jbt.22724] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/10/2020] [Accepted: 12/17/2020] [Indexed: 01/03/2023]
Abstract
Increasing studies have indicated that abnormal expressed long noncoding RNAs (lncRNAs) play a vital role in ischemic stroke. Small nucleolar RNA host gene 8 (Snhg8), a member of lncRNAs, has been found to induce neuronal apoptosis in chronic cerebral ischemia models. Here, we aim to explore the function and molecular mechanism of Snhg8 in modulating microglial inflammation as well as brain microvascular endothelial cell (BMEC) damage following ischemic injury. Our data suggested that Snhg8 was low-expressed in the brain tissues of mice that underwent middle cerebral artery occlusion (MCAO) surgery and oxygen-glucose deprivation (OGD)-treated primary microglia and BMECs. Gain- or loss-of function approaches found that Snhg8 upregulation not only attenuated ischemic induced inflammatory response in microglia but also relieved BMECs injury both in vitro and in vivo. Furthermore, we conducted a bioinformatics analysis to explore the underlying mechanism of Snhg8. The results indicated that Snhg8 served as a competitive endogenous RNA by sponging miR-425-5p, which was proved to promote microglial inflammation and BMECs injury by targeting sirtuin1 (SIRT1)-mediated nuclear factor-κB (NF-κB) pathway. Overall, these results revealed that the Snhg8/miR-425-5p/SIRT1/NF-κB axis plays a critical role in the regulation of cerebral ischemia-induced microglial inflammation and brain-blood barrier damage.
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Affiliation(s)
- Jianan Tian
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yihang Liu
- Department of Cardiology, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Zhenqi Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Siqi Zhang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yue Yang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yulan Zhu
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chunxiao Yang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Zhang X, Zhang J, Gao F, Fan S, Dai L, Zhang J. KPNA2-Associated Immune Analyses Highlight the Dysregulation and Prognostic Effects of GRB2, NRAS, and Their RNA-Binding Proteins in Hepatocellular Carcinoma. Front Genet 2020; 11:593273. [PMID: 33193737 PMCID: PMC7649362 DOI: 10.3389/fgene.2020.593273] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/21/2020] [Indexed: 12/14/2022] Open
Abstract
Karyopherin α2 (KPNA2) was reported to be overexpressed and have unfavorable prognostic effects in many malignancies including hepatocellular carcinoma (HCC). Although its contributions to inflammatory response were reported in many studies, its specific associations with immune infiltrations and immune pathways during cancer progression were unclear. Here, we aimed to identify new markers for HCC diagnosis and prognosis through KPNA2-associated immune analyses. RNA-seq expression data of HCC datasets were downloaded from The Cancer Genome Atlas and International Cancer Genome Consortium. The gene expressions were counts per million normalized. The infiltrations of 24 kinds of immune cells in the samples were evaluated with ImmuCellAI (Immune Cell Abundance Identifier). The Spearman correlations of the immune infiltrations with KPNA2 expression were investigated, and the specific positive correlation of B-cell infiltration with KPNA2 expression in HCC tumors was identified. Fifteen genes in KEGG (Kyoto Encyclopedia of Genes and Genomes) B-cell receptor signaling pathway presented significant correlations with KPNA2 expression in HCC. Among them, GRB2 and NRAS were indicated to be independent unfavorable prognostic factors for HCC overall survival. Clinical Proteomic Tumor Analysis Consortium HCC dataset was investigated to validate the results at protein level. The upregulation and unfavorable prognostic effects of KPNA2 and GRB2 were confirmed, whereas, unlike its mRNA form, NRAS protein was presented to be downregulated and have favorable prognostic effects. Through receiver operating characteristic curve analysis, the diagnostic potential of the three proteins was shown. The RNA-binding proteins (RBPs) of KPNA2, NRAS, and GRB2, downloaded via The Encyclopedia of RNA Interactomes, were investigated for their clinical significance in HCC at protein level. An eight-RBP signature with independent prognostic value and dysregulations in HCC was identified. All the RBPs were significantly correlated with MKI67 expression and at least one of KPNA2, GRB2, and NRAS at protein level in HCC, indicating their roles in HCC progression and the regulation of the three proteins. We concluded that KPNA2, GRB2, NRAS, and their RBPs might have coordinating roles in HCC immunoregulation and progression. They might be new markers for HCC diagnosis and prognosis predication and new targets for HCC immunotherapy.
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Affiliation(s)
- Xiuzhi Zhang
- Department of Pathology, Henan Medical College, Zhengzhou, China
| | - Jialing Zhang
- Department of Pathology, Henan Medical College, Zhengzhou, China
| | - Fenglan Gao
- Department of Pathology, Henan Medical College, Zhengzhou, China
| | - Shasha Fan
- Oncology Department, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, China.,Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, China
| | - Liping Dai
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jinzhong Zhang
- Department of Pathology, Henan Medical College, Zhengzhou, China
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Tian X, Liu Y, Wang Z, Wu S. lncRNA SNHG8 promotes aggressive behaviors of nasopharyngeal carcinoma via regulating miR-656-3p/SATB1 axis. Biomed Pharmacother 2020; 131:110564. [PMID: 32920509 DOI: 10.1016/j.biopha.2020.110564] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/21/2020] [Accepted: 07/25/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Long non-coding RNA (lncRNA) has been proposed to regulate tumorigenesis, however, the role of small nucleolar RNA host gene 8 (SNHG8) in nasopharyngeal carcinoma (NPC) remains unclear. METHODS Levels of SNHG8 in NPC tissues and cells were analyzed with real-time quantitative PCR method. Cell counting kit-8 assay, colony formation assay, wound-healing assay, and transwell invasion assay were performed to detect cell viability, migration, and invasion. Luciferase activity assay and RIP assay were performed to explore relationships among SNHG8, microRNA-656-3p (miR-656-3p), and special AT-rich sequence-binding protein 1 (SATB1). RESULTS We found SNHG8 level was increased expression in NPC tissues and cells.In vitro assays revealed that SNHG8 stimulates NPC cell proliferation, colony formation, cell migration, and cell invasion. In vivo assay confirmed knockdown of SNHG8 could hamper tumor growth. Furthermore, we showed SNHG8 serves as a sponge for miR-656-3p to regulate SATB1 expression, and participated in NPC progression. CONCLUSIONS In summary, our work indicated the importance of SNHG8 in NPC progression, which provided novel treatment methods for NPC.
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Affiliation(s)
- Xiaoyan Tian
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University, No.1 Minde Street, Nanchang 330006, China
| | - Yuehui Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University, No.1 Minde Street, Nanchang 330006, China.
| | - Zhi Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University, No.1 Minde Street, Nanchang 330006, China
| | - Shuhong Wu
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University, No.1 Minde Street, Nanchang 330006, China
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Zhuo Z, Lu H, Zhu J, Hua RX, Li Y, Yang Z, Zhang J, Cheng J, Zhou H, Li S, Li L, Xia H, He J. METTL14 Gene Polymorphisms Confer Neuroblastoma Susceptibility: An Eight-Center Case-Control Study. Mol Ther Nucleic Acids 2020; 22:17-26. [PMID: 32891980 PMCID: PMC7484523 DOI: 10.1016/j.omtn.2020.08.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/05/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
Abstract
Neuroblastoma is the primary cause of cancer death in childhood. METTL14 is tightly linked to cancer. However, whether single-nucleotide polymorphisms (SNPs) in the METTL14 gene could predispose to neuroblastoma susceptibility lacks evidence. With an epidemiology case-control study, associations between METTL14 gene SNPs and overall risk for neuroblastoma were estimated in 898 cases and 1,734 controls. Following that, stratified analysis was performed. Among the five analyzed SNPs, rs298982 G>A and rs62328061 A>G exhibited a significant association with decreased susceptibility to neuroblastoma, whereas the associations with increased neuroblastoma susceptibility were observed for rs9884978 G>A and rs4834698 T>C. Moreover, subjects carrying two to five risk genotypes were more inclined to develop neuroblastoma than those with zero to one risk genotypes. The stratified analysis further demonstrated the protective effect of rs298982 G>A and rs62328061 A>G, as well as the predisposing effect of rs4834698 T>C and two to five risk genotypes, in certain subgroups. Haplotype analysis was performed. Moreover, false-positive report probability analysis validated the reliability of the significant results. The expression quantitative trait locus analysis revealed that rs298982 is correlated with the expression levels of its surrounding genes. Our results suggest that some SNPs in the METTL14 gene are associated with predisposition to neuroblastoma.
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Affiliation(s)
- Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Hongting Lu
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Jinhong Zhu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China; Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, Harbin 150040, Heilongjiang, China
| | - Rui-Xi Hua
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Yong Li
- Department of Pediatric Surgery, Hunan Children's Hospital, Changsha 410004, Hunan, China
| | - Zhonghua Yang
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Jiao Zhang
- Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jiwen Cheng
- Department of Pediatric Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi, China
| | - Haixia Zhou
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
| | - Suhong Li
- Department of Pathology, Children Hospital and Women Health Center of Shanxi, Taiyuan 030013, Shannxi, China
| | - Li Li
- Kunming Key Laboratory of Children Infection and Immunity, Yunnan Key Laboratory of Children's Major Disease Research, Yunnan Institute of Pediatrics Research, Yunnan Medical Center for Pediatric Diseases, Kunming Children's Hospital, Kunming 650228, Yunnan, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China.
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China.
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Abstract
Background The objective of the study was to explore the role of long non-coding RNA SNHG8 (lncRNA SNHG8) in myocardial infarction (MI) and the related mechanism of action. Material/Methods In vitro model of MI was established by hypoxia induction in cardiomyocyte line H9c2 cells. H9c2 cells were transfected with control-plasmid, SNHG8-plasmid, control-shRNA and SNHG8-shRNA. Quantitative real-time polymerase chain reaction (qRT-PCR) assay was performed to measure transfection efficiency. Creatine kinase-muscle/brain (CK-MB) release, cardiac troponin 1 (cTnI) release and mitochondria viability were detected by using related detection kits. MTT (3-(45)-dimethylthiahiazo (-z-y 1)-35-diphenytetrazoliumromide) assay was used to detect cell viability and flow cytometry analysis was used to detect cell apoptosis. Western blot assay was performed to measure protein expression of cleaved-Caspase3, p-p65 and p65. Enzyme-linked immunosorbent assay (ELISA) and qRT-PCR assay were performed to detect expression of interleukin (IL)-1β, tumor necrosis factor (TNF)-α and IL-6. Results LncRNA SNHG8 was overexpressed in hypoxia-induced cardiomyocytes. SNHG8-plasmid increased lncRNA SNHG8 expression, CK-MB release, cTnI release, and mitochondria viability in hypoxia-induced H9c2 cells. In addition, SNHG8-plasmid reduced cell viability, induced cell apoptosis, and increased expression of cleaved-caspase3, IL-1β, TNF-α, IL-6, and p-p65 in hypoxia-induced H9c2 cells, while the effects of SNHG8-shRNA were opposite. Conclusions We demonstrated that lncRNA SNHG8 affected myocardial infarction by affecting hypoxia-induced cardiomyocyte injury via regulation of the NF-κB pathway.
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Affiliation(s)
- Yue Zhang
- Shanxi Medical University, Taiyuan, Shanxi, China (mainland)
| | - Yunfei Bian
- Department of Cardiology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China (mainland)
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18
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Cui X, Jing X, Wu X, Xu J, Liu Z, Huo K, Wang H. Analyses of DNA Methylation Involved in the Activation of Nuclear Karyopherin Alpha 2 Leading to Identify the Progression and Prognostic Significance Across Human Breast Cancer. Cancer Manag Res 2020; 12:6665-6677. [PMID: 32801900 PMCID: PMC7416187 DOI: 10.2147/cmar.s261290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022] Open
Abstract
Background Karyopherin alpha 2 (KPNA2) is a nuclear import factor that plays a crucial role in nucleocytoplasmic transport, as well as cell proliferation, migration, and invasion in several cancers. However, the roles of KPNA2 in breast cancer as well as the underlying molecular mechanisms have not been elucidated. Materials and Methods To evaluate gene expression alterations during breast carcinogenesis, KPNA2 expression was analyzed using the Gene Expression Profiling Interactive Analysis and Oncomine analyses. The correlation between methylation and expression was analyzed using the MEXPRESS tool, UALCAN cancer database, and cBioPortal browser. Then, the expression and prognostic value of KPNA2 were investigated by our own breast cancer samples using RT-PCR. KPNA2 methylation level was detected by methylation-specific PCR. Results We obtained the following important results. (1) KPNA2 expression was significantly higher in breast cancer than normal samples and regulated by aberrant DNA hypomethylation of promoter region. (2) Among patients with breast cancer, those with higher KPNA2 expression had a lower survival rate. (3) The major mutation type of KPNA2 in breast cancer samples was missense mutation. (4) Homer1 was able to promote breast cancer progression may be through upregulating TPX2 expression. Conclusion Our findings suggest that aberrant DNA hypomethylation of promoter regions contributes to the aberrant expression of KPNA2 in breast cancer, which might be a potential indicator of poor prognosis.
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Affiliation(s)
- Xiangrong Cui
- Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan 030001, People's Republic of China
| | - Xuan Jing
- Clinical Laboratory, Shanxi Province People's Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, People's Republic of China
| | - Xueqing Wu
- Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan 030001, People's Republic of China
| | - Jing Xu
- Department of Hematology, 2nd Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
| | - Zhuang Liu
- Department of Hematology, 2nd Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
| | - Kai Huo
- Department of Breast Surgery, Shanxi Cancer Hospital, Taiyuan 030000, People's Republic of China
| | - Hongwei Wang
- Department of Hematology, 2nd Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, People's Republic of China
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Zhou SN. Role of non-coding RNAs in esophageal carcinoma. Shijie Huaren Xiaohua Zazhi 2020; 28:453-459. [DOI: 10.11569/wcjd.v28.i12.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In recent years, the research on the role of non-coding RNAs (ncRNAs) in tumors has received more and more attention. Although research on the role of ncRNAs in the early diagnosis, disease monitoring, treatment guidance, and prognosis prediction of esophageal carcinoma has been gradually carried out, there are still many problems that need to be addressed. In the current paper, I review the progress in the research of ncRNAs in esophageal carcinoma, with an aim to help provide new strategies for the prevention and treatment of esophageal carcinoma.
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Affiliation(s)
- Su-Na Zhou
- Department of Radiation Oncology, The Affiliated Taizhou Hospital, Wenzhou Medical University, Linhai 317000, Zhejiang Province, China
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20
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Hua K, Deng X, Hu J, Ji C, Yu Y, Li J, Wang X, Fang L. Long noncoding RNA HOST2, working as a competitive endogenous RNA, promotes STAT3-mediated cell proliferation and migration via decoying of let-7b in triple-negative breast cancer. J Exp Clin Cancer Res 2020; 39:58. [PMID: 32248842 PMCID: PMC7132993 DOI: 10.1186/s13046-020-01561-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023]
Abstract
Background Human ovarian cancer specific transcript 2 (HOST2) is a long non-coding RNA (lncRNA) reported to be specifically high expressed in human ovarian cancer. However, the mechanism that how HOST2 regulates triple negative breast cancer (TNBC) need to be explored. Methods In this study, expression of HOST2 was determined in 40 TNBC patients and matched non-cancerous tissues by qRT-PCR and in situ hybridization (ISH) assay. The biological functions of HOST2 was measured by losing features. The effect of HOST2 on viability, proliferation and migration was evaluated by MTT, colony formation assay, EDU analysis, transwell invasion assay and nude mouse xenograft model. Fluorescence in situ hybridization (FISH), Luciferase report assay, RNA immunoprecipitation (RIP) assay and Western blot were fulfilled to measure molecular mechanisms. Results The results showed that HOST2 was up-regulated in BC tissues and cell lines. Clinical outcome analysis demonstrated that high expression of HOST2 was associated with poor prognosis of TNBC patients. Functional experiments illustrated that knockdown of HOST2 significantly suppressed TNBC cell proliferation and migration. Western blot assays, qRT-PCR assays, RIP assays and luciferase reporter assays revealed that HOST2 regulated STAT3 via crosstalk with let-7b. Depression of HOST2 suppressed STAT3-mediated proliferation and migration in TNBC cells. HOST2 could function as a decoy of let-7b to depress expression of STAT3. Conclusions HOST2 could function as a oncogene and promoted STAT3-mediated proliferation and migration through acting as a competing endogenous RNA, which might act as a potential biomarker for TNBC patients.
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Affiliation(s)
- Kaiyao Hua
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China.
| | - Xiaochong Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Jiashu Hu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Changle Ji
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yunhe Yu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Jiayi Li
- Nanjing Medical University, Nanjing, 210029, China
| | - Xuehui Wang
- Medical College of Soochow University, Suzhou, 215006, China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China.
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Liu X, Sun R, Chen J, Liu L, Cui X, Shen S, Cui G, Ren Z, Yu Z. Crosstalk Mechanisms Between HGF/c-Met Axis and ncRNAs in Malignancy. Front Cell Dev Biol 2020; 8:23. [PMID: 32083078 PMCID: PMC7004951 DOI: 10.3389/fcell.2020.00023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/13/2020] [Indexed: 12/24/2022] Open
Abstract
Several lines of evidence have confirmed the magnitude of crosstalk between HGF/c-Met axis (hepatocyte growth factor and its high-affinity receptor c-mesenchymal-epithelial transition factor) and non-coding RNAs (ncRNAs) in tumorigenesis. Through activating canonical or non-canonical signaling pathways, the HGF/c-Met axis mediates a range of oncogenic processes such as cell proliferation, invasion, apoptosis, and angiogenesis and is increasingly becoming a promising target for cancer therapy. Meanwhile, ncRNAs are a cluster of functional RNA molecules that perform their biological roles at the RNA level and are essential regulators of gene expression. The expression of ncRNAs is cell/tissue/tumor-specific, which makes them excellent candidates for cancer research. Many studies have revealed that ncRNAs play a crucial role in cancer initiation and progression by regulating different downstream genes or signal transduction pathways, including HGF/c-Met axis. In this review, we discuss the regulatory association between ncRNAs and the HGF/c-Met axis by providing a comprehensive understanding of their potential mechanisms and roles in cancer development. These findings could reveal their possible clinical applications as biomarkers for therapeutic interventions.
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Affiliation(s)
- Xin Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianan Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Liwen Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xichun Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shen Shen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guangying Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhigang Ren
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zujiang Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Dai J, Wei R, Zhang P, Liu P. Long Noncoding RNA ZFPM2-AS1 Enhances the Malignancy of Cervical Cancer by Functioning as a Molecular Sponge of microRNA-511-3p and Consequently Increasing FGFR2 Expression. Cancer Manag Res 2020; 12:567-580. [PMID: 32158261 PMCID: PMC6986931 DOI: 10.2147/cmar.s238373] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/18/2019] [Indexed: 12/24/2022] Open
Abstract
Purpose A long noncoding RNA called ZFPM2 antisense RNA 1 (ZFPM2-AS1) has been verified as a key modulator in multiple human cancer types. Nonetheless, the expression and functions of ZFPM2-AS1 in cervical cancer remain poorly understood. Therefore, our purpose was to characterize the expression pattern, clinical value, and detailed roles of ZFPM2-AS1 in cervical cancer. Methods Reverse-transcription quantitative PCR was carried out to measure ZFPM2-AS1 expression in cervical cancer. A Cell Counting Kit-8 assay, flow cytometry, Transwell migration and invasion assays, and a tumor xenograft experiment were conducted to determine the influence of ZFPM2-AS1 on cervical cancer cell proliferation, apoptosis, migration, and invasion in vitro and on tumor growth in vivo, respectively. Results ZFPM2-AS1 was found to be aberrantly upregulated in cervical cancer, and its upregulation was associated with unfavorable values of clinical parameters. A ZFPM2-AS1 knockdown significantly reduced cervical cancer cell proliferation, migration, and invasion and increased apoptosis in vitro. The ZFPM2-AS1 knockdown decelerated tumor growth of cervical cancer cells in vivo. Molecular investigation indicated that ZFPM2-AS1 acts as a molecular sponge of microRNA-511-3p (miR-511-3p) in cervical cancer cells. Fibroblast growth factor receptor 2 (FGFR2) mRNA was validated as a direct target of miR-511-3p in cervical cancer, and its expression was positively modulated by ZFPM2-AS1. The effects of the ZFPM2-AS1 knockdown on malignant characteristics of cervical cancer cells were greatly attenuated by miR-511-3p inhibition. Conclusion ZFPM2-AS1 promotes cervical cancer progression through upregulation of miR-511-3p–FGFR2 axis output, thereby pointing to possible diagnostics and therapeutics based on the ZFPM2-AS1–miR-511-3p–FGFR2 pathway.
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Affiliation(s)
- Jun Dai
- Department of Gynaecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Rujia Wei
- School of Life Sciences, Liaocheng University, Liaocheng, Shandong 252004, People's Republic of China
| | - Peihai Zhang
- Department of Gynaecology and Obstetrics, Qilu Hospital of Shandong University (Qingdao), Qingdao, Shandong 266035, People's Republic of China
| | - Peishu Liu
- Department of Gynaecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, People's Republic of China
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