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Song B, Chen Y. Long non-coding RNA SNHG4 aggravates cigarette smoke-induced COPD by regulating miR-144-3p/EZH2 axis. BMC Pulm Med 2023; 23:513. [PMID: 38114929 PMCID: PMC10731904 DOI: 10.1186/s12890-023-02818-5] [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: 09/05/2023] [Accepted: 12/14/2023] [Indexed: 12/21/2023] Open
Abstract
OBJECTIVE The purpose of this study was to explore the expression level of SNHG4 in patients with COPD and its diagnostic value in COPD, to probe the biological function of SNHG4 in COPD at the cellular level, and to reveal the interaction between SNHG4 and miR-144-3p/EZH2 axis. METHODS The serum levels of SNHG4, miR-144-3p and EZH2 in healthy people and patients with COPD were detected by RT-qPCR. The diagnostic value of SNHG4 in COPD was evaluated by ROC curve. Pearson method was chosen to estimate the correlation between SNHG4 and clinical indicators in patients with COPD. Cigarette smoke extract (CSE) was obtained, and Beas-2B cells were exposed with 2% CSE to establish an inflammatory cell model of COPD in vitro. MTT assay was used to detect cell viability, flow cytometry was used to evaluate cell apoptosis, and ELISA was performed to detect inflammatory cytokines. Dual-luciferase reporting assay was carried out to verify the targeting of lncRNA-miRNA or miRNA-mRNA. RESULTS (1) The expression of SNHG4 is decreased in patients with COPD, and the expression level in acute exacerbation COPD was lower than that in stable COPD. SNHG4 demonstrated high diagnostic accuracy in distinguishing between stable and acute exacerbation COPD. (2) The expression of SNHG4 was decreased in CSE-induced Beas-2B cells, and overexpression of SNHG4 was beneficial to alleviate CSE-induced apoptosis and inflammation. (3) The expression of miR-144-3p is up-regulated in patients with COPD and CSE-induced Beas-2B cells. MiR-144-3p has a targeting relationship with SNHG4, which is negatively regulated by SNHG4. Overexpression of miR-144-3p could counteract the beneficial effects of increased SNHG4 on CSE-induced cells. (4) The expression of EZH2 is reduced in patients with COPD and CSE-induced Beas-2B cells. Bioinformatics analysis and luciferase reporter gene confirmed that EZH2 is the downstream target gene of miR-144-3p and is negatively regulated by miR-144-3p. CONCLUSION The expression of SNHG4 decreased in patients with COPD, and it may promote the progression of COPD by inhibiting the viability, promoting apoptosis and inflammatory response of bronchial epithelial cells via regulating the miR-144-3p/EZH2 axis.
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Affiliation(s)
- Benyan Song
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Panzhihua University, No. 27, Taoyuan Street, Bingcaogang, East District, Panzhihua, 617000, China
| | - Yusi Chen
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Panzhihua University, No. 27, Taoyuan Street, Bingcaogang, East District, Panzhihua, 617000, China.
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Wu S, Huang K, Chang C, Chu X, Zhang K, Li B, Yang T. Serum Proteomic Profiling in Patients with Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2023; 18:1623-1635. [PMID: 37533772 PMCID: PMC10392904 DOI: 10.2147/copd.s413924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023] Open
Abstract
Purpose Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease with high morbidity and mortality rates. This study used proteomic profiling of serum to identify the differentially expressed proteins in COPD patients compared with healthy controls, to expand the knowledge of COPD pathogenesis and to ascertain potential new targets for diagnosis and treatment of COPD. Methods Serum samples were collected from 56 participants (COPD group n = 28; Healthy Control group n = 28). A data-independent acquisition quantitative proteomics approach was used to identify differentially expressed proteins (DEPs) between the two groups. Gene Ontology (GO) functional annotation, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway functional enrichment, and protein-protein interaction analyses of DEPs were conducted to identify their relevant biological processes, cellular components, and related pathways. We used a parallel reaction monitoring (PRM)-based targeted quantitative proteomics approach to validate those findings. Results Of 8484 peptides identified by searching the UniProtKB/Swiss-Prot knowledgebase, 867 proteins were quantifiable, of which 20 were upregulated and 35 were downregulated in the COPD group. GO functional annotation indicated that the subcellular localization of most DEPs was extracellular. The top three molecular functions of the DEPs were signaling receptor binding, antigen binding, and immunoglobulin receptor binding. The most relevant biological process was immune response. The transforming growth factor-β signaling pathway, Staphylococcus aureus infection, and hematopoietic cell lineage were the top three pathways identified in the KEGG pathway functional enrichment. Our PRM analyses confirmed the identification of 11 DEPs identified in our data-independent acquisition analyses, 8 DEPs were upregulated and 3 DEPs were downregulated. Conclusion This study using data-independent acquisition analyses with PRM confirmation of findings identified 11 DEPs in the serum of patients with COPD. These DEPs are potential diagnostic or prognostic biomarkers or may be future targets for the treatment of COPD.
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Affiliation(s)
- Sinan Wu
- National Center for Respiratory Medicine, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Ke Huang
- National Center for Respiratory Medicine, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Chenli Chang
- National Center for Respiratory Medicine, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Xu Chu
- National Center for Respiratory Medicine, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, People’s Republic of China
| | - Kun Zhang
- Biotree-Shanghai, Focus Dream Park, Shanghai, People’s Republic of China
| | - Baicun Li
- National Center for Respiratory Medicine, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
| | - Ting Yang
- National Center for Respiratory Medicine, Beijing, People’s Republic of China
- National Clinical Research Center for Respiratory Diseases, Beijing, People’s Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People’s Republic of China
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Zhou W, Jia J, Qu HQ, Ma F, Li J, Qi X, Meng X, Ding Z, Zheng G, Hakonarson H, Zeng X, Li J, Xia Q. Identification of copy number variants contributing to hallux valgus. Front Genet 2023; 14:1116284. [PMID: 37035746 PMCID: PMC10076598 DOI: 10.3389/fgene.2023.1116284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/13/2023] [Indexed: 04/11/2023] Open
Abstract
Hallux valgus is a common form of foot deformity, and genetic factors contribute substantially to the pathogenesis of hallux valgus deformity. We conducted a genetic study on the structural variants underlying familial hallux valgus using whole exome sequencing approach. Twenty individuals from five hallux valgus families and two sporadic cases were included in this study. A total of 372 copy number variations were found and passed quality control filtering. Among them, 43 were only present in cases but not in controls or healthy individuals in the database of genomic variants. The genes covered by these copy number variations were enriched in gene sets related to immune signaling pathway, and cytochrome P450 metabolism. The hereditary CNVs demonstrate a dominant inheritance pattern. Two candidate pathogenic CNVs were further validated by quantitative-PCR. This study suggests that hallux valgus is a degenerative joint disease involving the dysregulation of immune and metabolism signaling pathways.
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Affiliation(s)
- Wentao Zhou
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Jun Jia
- Department of Surgery of Foot and Ankle, Tianjin Hospital, Tianjin, China
| | - Hui-Qi Qu
- Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Feier Ma
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Junyi Li
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Xiaohui Qi
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Xinyi Meng
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Zhiyong Ding
- Mills Institute for Personalized Cancer Care, Fynn Biotechnologies Ltd., Jinan, China
| | - Gang Zheng
- National Supercomputer Center in Tianjin (NSCC-TJ), Tianjin, China
| | - Hakon Hakonarson
- Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Xiantie Zeng
- Department of Surgery of Foot and Ankle, Tianjin Hospital, Tianjin, China
| | - Jin Li
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Qianghua Xia
- Department of Cell Biology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- Department of Bioinformatics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- *Correspondence: Qianghua Xia,
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He F, Wang N, Yu X, Zheng Y, Liu Q, Chen Q, Pu J, Li N, Zou W, Li B, Ran P. GATA3/long noncoding RNA MHC-R regulates the immune activity of dendritic cells in chronic obstructive pulmonary disease induced by air pollution particulate matter. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129459. [PMID: 35780733 DOI: 10.1016/j.jhazmat.2022.129459] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 06/17/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a heterogeneous illness associated with aberrant inflammatory immune reaction in the lung in response to noxious particles and gases. Our previous epidemiological studies discovered that long-term exposure to air pollution PM was associated with an increase in the incidence of COPD and lung function decline, but the impact of air pollution on the onset of COPD and its pathogenesis remains obscure. In recent years, long noncoding RNAs (lncRNAs) have been documented to have a crucial role in COPD. Our preliminary study found that the expression of lncRNA MHC-R in the lung tissues of rats exposed to air pollution PM was dramatically elevated, and the specific expression was mainly focused on the immune-related MHC I, antigen-presenting, and adaptive immune response. After transcription factor prediction, it was found that GATA3 could be combined with the specific sequence of the lncRNA MHC-R promoter region. Dendritic cells (DCs) are necessary antigen-presenting cells (APCs) with the most potent antigen-presenting function. We proved that GATA3/lncRNA MHC-R might regulate the immune activities of DCs to participate in the pathogenic mechanism of COPD induced by air pollution PM, which opens up a new way for early COPD diagnosis and treatment.
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Affiliation(s)
- Fang He
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, China; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Nian Wang
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Xiaoyuan Yu
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Yufan Zheng
- Zhongshan School of Medical, Sun Yat-sen University//Center for Pain Research, Sun Yat-sen University, Guangzhou, Guangdong 510000, China
| | - Qun Liu
- Institute of Ophthalmology, School of Medicine, Jinan University, Guangzhou, Guangdong 510000, China
| | - Qingzi Chen
- School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Jinding Pu
- Department of Pulmonary and Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Naijian Li
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Weifeng Zou
- Guangzhou Chest Hospital, Guangzhou, Guangdong 510000, China
| | - Bing Li
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong 510000, China
| | - Pixin Ran
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, China.
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Yuan X, Zhao Q, Zhang Y, Xue M. The role and mechanism of HLA complex group 11 in cancer. Biomed Pharmacother 2021; 143:112210. [PMID: 34563948 DOI: 10.1016/j.biopha.2021.112210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/08/2021] [Accepted: 09/13/2021] [Indexed: 12/20/2022] Open
Abstract
HLA is critical in a variety of diseases, including infectious disease and cancer, and has been used for diagnostic differentiation and immunosurveillance of certain diseases. In addition, emerging evidence suggests that the mutations and dysregulation of lncRNAs are essential contributors in cancers. HLA Complex Group 11 (HCG11) located on MHC region is affiliated with the lncRNA class. Studies have shown that HCG11 could serve as a key regulator in lung cancer, prostate cancer, glioma, cervical cancer and hepatocellular carcinoma. In this review, we summarize the accumulated information on the expression and clinical value of HCG11 in different cancer types, discuss its interactions with microRNAs, mRNAs, and proteins, and discover the biological roles and potential mechanisms of HCG11 in a variety of cellular functions, including cell proliferation, apoptosis, migration, and invasion. Further, we emphasize the possible application of HCG11 in treatment, summarize the studies of HCG11 in chemotherapy resistance and hormone therapy, and propose the significance of further study of HCG11.
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Affiliation(s)
- Xin Yuan
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Qinlu Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yang Zhang
- Department of Geriatric Respiratory and Sleep, 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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LINC01414/LINC00824 genetic polymorphisms in association with the susceptibility of chronic obstructive pulmonary disease. BMC Pulm Med 2021; 21:213. [PMID: 34233676 PMCID: PMC8261955 DOI: 10.1186/s12890-021-01579-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/24/2021] [Indexed: 11/18/2022] Open
Abstract
Objective Chronic obstructive pulmonary disease (COPD) is a complicated multi-factor, multi-gene disease. Here, we aimed to assess the association of genetic polymorphisms in LINC01414/ LINC00824 and interactions with COPD susceptibility. Methods Three single nucleotide polymorphisms (SNPs) in LINC01414/LINC00824 was genotyped by Agena MassARRAY platform among 315 COPD patients and 314 controls. Logistic analysis adjusted by age and gender were applied to estimate the genetic contribution of selected SNPs to COPD susceptibility. Results LINC01414 rs699467 (OR = 0.73, 95% CI 0.56–0.94, p = 0.015) and LINC00824 rs7815944 (OR = 0.56, 95% CI 0.31–0.99, p = 0.046) might be protective factors for COPD occurrence, while LINC01414 rs298207 (OR = 2.88, 95% CI 1.31–6.31, p = 0.008) risk-allele was related to the increased risk of COPD in the whole population. Rs7815944 was associated with the reduced risk of COPD in the subjects aged > 70 years (OR = 0.29, p = 0.005). Rs6994670 (OR = 0.57, p = 0.007) contribute to a reduced COPD risk, while rs298207 (OR = 7.94, p = 0.009) was related to a higher susceptibility to COPD at age ≤ 70 years. Rs298207 (OR = 2.54, p = 0.043) and rs7815944 (OR = 0.43, p = 0.028) variants was associated COPD risk among males. Rs7815944 (OR = 0.16, p = 0.031) was related to the reduced susceptibility of COPD in former smokers. Moreover, the association between rs298207 genotype and COPD patients with dyspnea was found (OR = 0.50, p = 0.016), and rs7815944 was related to COPD patients with wheezing (OR = 0.22, p = 0.008). Conclusion Our finding provided further insights into LINC01414/LINC00824 polymorphisms at risk of COPD occurrence and accumulated evidence for the genetic susceptibility of COPD. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01579-3.
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Copy number gain of pro-inflammatory genes in patients with HBV-related acute-on-chronic liver failure. BMC Med Genomics 2020; 13:180. [PMID: 33261607 PMCID: PMC7709420 DOI: 10.1186/s12920-020-00835-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022] Open
Abstract
Background Host genetic factors such as single nucleotide variations may play a crucial role in the onset and progression of HBV-related acute-on-chronic liver failure (ACLF). However, the underlying genomic copy number variations (CNVs) involved in the pathology are currently unclear. Methods We genotyped two cohorts with 389 HBV-related ACLF patients and 391 asymptomatic HBV carriers (AsCs), and then carried out CNV-based global burden analysis and a genome-wide association study (GWAS). Results For 1874 rare CNVs, HBV-related ACLF patients exhibited a high burden of deletion segments with a size of 100–200 kb (P value = 0.04), and the related genes were significantly enriched in leukocyte transendothelial migration pathway (P value = 4.68 × 10–3). For 352 common CNVs, GWAS predicted 17 significant association signals, and the peak one was a duplication segment located on 1p36.13 (~ 38 Kb, P value = 1.99 × 10–4, OR = 2.66). The associated CNVs resulted in more copy number of pro-inflammatory genes (MST1L, DEFB, and HCG4B) in HBV-related ACLF patients than in AsC controls. Conclusions Our results suggested that the impact of host CNV on HBV-related ACLF may be through decreasing natural immunity and enhancing host inflammatory response during HBV infection. The findings highlighted the potential importance of gene dosage on excessive hepatic inflammation of this disease.
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He P, Xiong G, Guo W, Jiang G, Li Y, Li H. Long non-coding RNA CCAT2 promotes prostate cancer cell proliferation and invasion by regulating the Wnt/β-catenin signaling pathway. Oncol Lett 2020; 20:97. [PMID: 32831916 PMCID: PMC7439128 DOI: 10.3892/ol.2020.11958] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 07/14/2020] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNA colon cancer associated transcript 2 (CCAT2) is dysregulated in a number of different types of human cancer, and affects cancer progression via the Wnt/β-catenin signaling pathway. However, the roles of CCAT2 and the Wnt/β-catenin signaling pathway in prostate cancer (PCa) are not completely understood. The present study aimed to investigate the potential mechanism of CCAT2 in PCa. In the present study, the reverse transcription-quantitative PCR (RT-qPCR) results indicated that CCAT2 expression was significantly upregulated in PCa tissues, and DU145 and PC3 cell lines compared with normal prostate tissues and the epithelial RWPE-1 cell line, respectively. Functional assays indicated that CCAT2 downregulation inhibited DU145 and PC3 cell proliferation, cell cycle, migration and invasion. In addition, the luciferase reporter assay, RT-qPCR and western blotting results indicated that CCAT2 regulated transcription factor 7 like 2 (TCF7L2) expression by binding to microRNA-217. Further western blotting and TOPFlash assays indicated that CCAT2-knockdown inhibited the Wnt/β-catenin signaling pathway in DU145 and PC3 cell lines by inhibiting the expression of TCF7L2. However, CCAT2-knockdown-mediated effects were reversed by the Wnt/β-catenin signaling pathway activator lithium chloride (LiCl). Further cell experiments suggested that LiCl treatment reversed CCAT2-knockdown-mediated inhibition of PCa cell proliferation, cell cycle, epithelial-mesenchymal transition, migration and invasion. Overall, the results indicated that CCAT2 regulated PCa via the Wnt/β-catenin signaling pathway; therefore, CCAT2 may exhibit key role during the progression of PCa and may serve as a therapeutic target for the disease.
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Affiliation(s)
- Peng He
- Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
| | - Guoguang Xiong
- Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
| | - Wei Guo
- Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
| | - Guanjun Jiang
- Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
| | - Yun Li
- Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
| | - Hao Li
- Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
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Xing YF, Zhou YH, Liu T, Feng DY, Ren JH, Wang C, Tan SL, Jiang WH. The specificity and definition of blood eosinophil. J Allergy Clin Immunol 2018; 142:2013. [DOI: 10.1016/j.jaci.2018.07.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 07/20/2018] [Indexed: 10/28/2022]
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10
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Ma Y, Hu X, Shang C, Zhong M, Guo Y. Silencing of long non-coding RNA CCAT2 depressed malignancy of oral squamous cell carcinoma via Wnt/β-catenin pathway. Tumour Biol 2017; 39:1010428317717670. [PMID: 28671055 DOI: 10.1177/1010428317717670] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Oral squamous cell carcinoma is a common and lethal malignancy affecting the head and neck region. CCAT2 (colon cancer-associated transcript 2) gene is affiliated with long non-coding RNAs, which are often found to have important regulatory roles in cancers. This study aims to assess the expression and clinical significance of CCAT2 gene, identify its malignant biological behaviors, and explore the possible mechanisms in oral squamous cell carcinoma. CCAT2 expression was detected by quantitative real-time polymerase chain reaction, and its relationship with clinical factors was assayed using the Kaplan-Meier survival curve. The biological behaviors of CCAT2 and its potential mechanisms in oral squamous cell carcinoma were explored by the combined use of CCAT2 knockdown technology and the Wnt/β-catenin pathway agonist lithium chloride (LiCl). Our results showed that CCAT2 functioning as a potential oncogene was upregulated in oral squamous cell carcinoma. CCAT2 with high expression level was correlated with poor differentiation, higher T stage, and clinical stage, which made CCAT2 to be a prognostic biomarker in oral squamous cell carcinoma. LiCl-activated Wnt/β-catenin signaling pathway could partly restore the CCAT2-mediated malignant biological behaviors of oral squamous cell carcinoma cells by suppressing β-catenin, CCND1, and MYC and activating glycogen synthase kinase 3 beta expression. These findings might assist in the discovery of novel potential diagnostic and therapeutic target for oral squamous cell carcinoma, thereby improve the effects of clinical treatment in patients.
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Affiliation(s)
- Yuji Ma
- 1 Department of Central Laboratory, School of Stomatology, China Medical University, Shenyang, China.,2 Key Laboratory of Oral Disease, Liaoning Province, Shenyang, China.,3 Department of Oral Biology, School of Stomatology, China Medical University, Shenyang, China
| | - Xuanhao Hu
- 4 Department of Neurobiology, China Medical University, Shenyang, China
| | - Chao Shang
- 4 Department of Neurobiology, China Medical University, Shenyang, China
| | - Ming Zhong
- 1 Department of Central Laboratory, School of Stomatology, China Medical University, Shenyang, China.,2 Key Laboratory of Oral Disease, Liaoning Province, Shenyang, China
| | - Yan Guo
- 1 Department of Central Laboratory, School of Stomatology, China Medical University, Shenyang, China.,2 Key Laboratory of Oral Disease, Liaoning Province, Shenyang, China.,3 Department of Oral Biology, School of Stomatology, China Medical University, Shenyang, China
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