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Wang D, Zhao X, Li S, Guo H, Li S, Yu D. The impact of LncRNA- SOX2-OT/let-7c-3p/SKP2 Axis on head and neck squamous cell carcinoma progression: Insights from bioinformatics analysis and experimental validation. Cell Signal 2024; 115:111018. [PMID: 38110167 DOI: 10.1016/j.cellsig.2023.111018] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/01/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND LncRNA SRY-box transcription factor 2 overlapping transcript (SOX2-OT) is linked to multiple cancers, but its specific role and mechanism in head and neck squamous cell carcinoma (HNSCC) remain poorly understood. METHODS We harnessed clinical data and HNSCC transcriptome profiles from UCSC Xena, TCGA, and GEO databases. Employing various algorithms, we assessed the correlation between SOX2-OT expression and the HNSCC immune microenvironment. Differential expression analysis identified immune-enriched miRNAs (DEmiRNAs) and mRNAs (DEmRNAs). Utilizing miRanda, miRWalk, and Cytoscape, we constructed a ceRNA network encompassing SOX2-OT, DEmiRNAs, and DEmRNAs. A Sankey diagram visualized pivotal SOX2-OT-miRNA-mRNA-pathways. Functional assays validated SOX2-OT silencing effects in HNSCC cells. Luciferase reporter assays verified SOX2-OT/let-7c-3p/SKP2 relationships. Additionally, a xenograft mouse model revealed SOX2-OT's impact on xenograft growth and lung metastasis. RESULTS SOX2-OT expression demonstrated a predominantly positive correlation with B lineage and VTCN1, while manifesting a negative correlation with Neutrophil and CD47 in HNSCC tissues. We discerned a ceRNA network comprising 65 DEmiRNAs and 116 DEmRNAs, while a protein-protein interaction (PPI) network revealed 97 protein nodes among DEmRNAs. Notably, the Sankey diagram spotlighted six key DEmRNAs intricately linked to the SOX2-OT-regulated DEmiRNAs immune-related pathway. Experimental assays established that SOX2-OT silencing exerted inhibitory effects on cell proliferation, migration, tumor growth, and lung metastasis within HNSCC cells, both in vitro and in vivo. We identified let-7c-3p as a target miRNA of SOX2-OT and SKP2 as a target mRNA of let-7c-3p. CONCLUSIONS Our study establishes the critical SOX2-OT/let-7c-3p/SKP2 axis as a pivotal regulator of HNSCC tumorigenesis and metastasis.
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Affiliation(s)
- Di Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Xue Zhao
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Shuang Li
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Haixian Guo
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Shaonan Li
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China
| | - Dan Yu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, People's Republic of China.
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Kolenda T, Graczyk Z, Żarska B, Łosiewski W, Smolibowski M, Wartecki A, Kozłowska-Masłoń J, Guglas K, Florczak A, Kazimierczak U, Teresiak A, Lamperska K. SRY-Related Transcription Factors in Head and Neck Squamous Cell Carcinomas: In Silico Based Analysis. Curr Issues Mol Biol 2023; 45:9431-9449. [PMID: 38132438 PMCID: PMC10742289 DOI: 10.3390/cimb45120592] [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] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/23/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth leading cancer and the fifth cause of cancer-related deaths worldwide with a poor 5-year survival. SOX family genes play a role in the processes involved in cancer development such as epithelial-mesenchymal transition (EMT), the maintenance of cancer stem cells (CSCs) and the regulation of drug resistance. We analyzed the expression of SOX2-OT, SOX6, SOX8, SOX21, SOX30 and SRY genes in HNSCC patients using the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets, to assess their biological role and their potential utility as biomarkers. We demonstrated statistically significant differences in expression between normal and primary tumor tissues for SOX6, SOX8, SOX21 and SOX30 genes and pointed to SOX6 as the one that met the independent diagnostic markers criteria. SOX21 or SRY alone, or the panel of six SRY-related genes, could be used to estimate patient survival. SRY-related genes are positively correlated with immunological processes, as well as with keratinization and formation of the cornified envelope, and negatively correlated with DNA repair and response to stress. Moreover, except SRY, all analyzed genes were associated with a different tumor composition and immunological profiles. Based on validation results, the expression of SOX30 is higher in HPV(+) patients and is associated with patients' survival. SRY-related transcription factors have vast importance in HNSCC biology. SOX30 seems to be a potential biomarker of HPV infection and could be used as a prognostic marker, but further research is required to fully understand the role of SOX family genes in HNSCC.
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Affiliation(s)
- Tomasz Kolenda
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
| | - Zuzanna Graczyk
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479 Poznan, Poland
| | - Barbara Żarska
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
| | - Wojciech Łosiewski
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
| | - Mikołaj Smolibowski
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
| | - Adrian Wartecki
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
| | - Joanna Kozłowska-Masłoń
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznan, Poland
| | - Kacper Guglas
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Żwirki i Wigury 61, 02-091 Warsaw, Poland
| | - Anna Florczak
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Garbary 15, 61-688 Poznan, Poland
| | - Urszula Kazimierczak
- Department of Cancer Immunology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland (A.W.); (A.F.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Garbary 15, 61-688 Poznan, Poland
| | - Anna Teresiak
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
| | - Katarzyna Lamperska
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
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Li Z, Liu G, Huang H. Silencing of Long noncoding RNA SOX2-OT relieves myocardial ischemia/reperfusion injury through up-regulating microRNA-146a-5p. BRATISL MED J 2023; 124:143-150. [PMID: 36598302 DOI: 10.4149/bll_2023_022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE Long noncoding RNAs (lncRNAs) are involved in the development of myocardial ischemia/reperfusion injury (MIRI). In this study, we aimed to explore the regulatory effect and mechanism of lncRNA SOX2-OT in MIRI. METHODS The expression levels of SOX2-OT and miR-146a-5p in OGD/R-treated H9C2 cells and in myocardial tissues of MIRI rats were measured by qRT-PCR. Cell viability was detected by MTT assay. The levels of IL-1β, IL-6, TNF-α, MDA, and SOD were measured by ELISA. The target relationship between SOX2-OT and miR-146a-5p was predicted by LncBase, and subsequently confirmed by DLR assay. The effects of SOX2-OT silencing on myocardial apoptosis and function were further validated in MIRI rats. RESULTS The expression of SOX2-OT was increased in OGD/R-treated H9C2 cells and myocardial tissues of MIRI rats. Silencing of SOX2-OT increased the viability and inhibited the inflammation and oxidative stress of OGD/R-treated H9C2 cells. SOX2-OT negatively regulated its target miR-146a-5p. Inhibition of miR-146a-5p reversed the effects of sh-SOX2-OT on increasing the viability, and on inhibiting the inflammation and oxidative stress of OGD/R-treated H9C2 cells. In addition, silencing of SOX2-OT alleviated myocardial apoptosis and improved myocardial function in MIRI rats. CONCLUSIONS Silencing of SOX2-OT relieved the apoptosis, inflammation, and oxidative stress of myocardial cells via up-regulating miR-146a-5p, contributing to the remission of MIRI (Fig. 28, Ref. 33).
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Dong H, Zeng L, Wu Y, Miao S, Ni N, Liu N, Chen W, DU J. [ SOX2-OT/SOX2 axis regulates lung cancer H520 cell migration via Gli1-mediated epithelial-mesenchymal transition]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1431-9. [PMID: 36329576 DOI: 10.12122/j.issn.1673-4254.2022.10.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To explore the regulatory role of SOX2-OT in migration of lung squamous cell carcinoma H520 cells and the underlying mechanisms. METHODS Wound- healing and Transwell migration assays were performed to examine the changes in migration and invasion capacity of lung squamous cell line H520, which expressed higher levels of SOX2-OT than other lung cancer cell lines, following RNA interference-mediated SOX2-OT knockdown. The transcription levels of epithelial-mesenchymal transition (EMT)-related components was detected by qRT-PCR and immunoblotting. Gli1 gain-of-function analysis was performed in H520 cells with SOX2-OT knockdown and the changes in EMT phenotype of the cells were examined. miR-200c mimic and inhibitor were used to analyze the mechanism by which SOX2-OT positively regulates Gli1 and the mediating role of SOX2. RESULTS SOX2-OT knockdown significantly lowered the invasiveness and migration capacity of H520 cells and caused changes in EMT phenotype of the cells. Overexpression of Gli1, which was positively regulated by SOX2-OT, reversed the inhibitory effect of SOX2-OT knockdown on migration of H520 cells. Transfection of the cells with miR-200c inhibitor effectively reversed SOX2-OT knockdown-induced down-regulation of SOX2. CONCLUSION The SOX2-OT/SOX2 axis positively regulates migration of lung squamous H520 cells via Gli1-mediated EMT.
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Jiang Y, Hei B, Hao W, Lin S, Wang Y, Liu X, Meng X, Guan Z. Clinical value of lncRNA SOX2-OT in pulmonary arterial hypertension and its role in pulmonary artery smooth muscle cell proliferation, migration, apoptosis, and inflammatory. Heart Lung 2022; 55:16-23. [PMID: 35436654 DOI: 10.1016/j.hrtlng.2022.04.002] [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] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/17/2022] [Accepted: 04/05/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Non-coding RNA is confirmed to be involved in pulmonary arterial hypertension (PAH). OBJECTIVES This study investigated the clinical value and potential mechanisms of the long noncoding RNA (lncRNA) SRY-box transcription factor 2 overlapping transcript (SOX2-OT) in PAH. METHODS SOX2-OT levels were measured by quantitative real-time polymerase chain reaction (qRT-PCR) in serum of 82 patients with PAH and 76 healthy controls. Receiver operating characteristic (ROC) analysis was performed to assess the diagnostic value of SOX2-OT. Human pulmonary arterial smooth muscle cells (hPASMCs) were treated by hypoxia to construct PAH cell models. Proliferation, migration, apoptosis, and inflammatory cytokines levels of hPASMCs were examined by CCK-8, Transwell, flow cytometry, and ELISA assay. Dual-luciferase reporter gene assays were performed to verify the target relationships between miR-455-3p and SOX2-OT, as well as small ubiquitin-related modifier 1 (SUMO1). RESULTS Serum SOX2-OT was highly expressed in patients with PAH (P < 0.05). And elevated SOX2-OT levels significantly differentiated PAH patients from healthy controls, confirming high diagnostic feasibility. What's more, SOX2-OT was increased in hypoxia-induced hPASMCs in a time-dependent manner. Silencing SOX2-OT could reverse hypoxia-induced proliferation, migration, anti-apoptosis, and inflammation of hPASMCs (P < 0.05). However, rescue experiments showed that this reversal effect of silencing SOX2-OT was attenuated by suppressed miR-455-3p, which was presumably achieved by SUMO1 (P < 0.05). CONCLUSIONS Elevated SOX2-OT is a feasible diagnostic marker for PAH, and its silencing may attenuated hypoxia-induced hPASMCs proliferation, migration, anti-apoptosis, and inflammation by modulating the miR-455-3p/SUMO1 axis, preventing vascular remodeling and PAH progression. Our research provided new insights for PAH treatment.
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Affiliation(s)
- Yunfei Jiang
- Department of Second Division of Aspiration Medicine, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Bingchang Hei
- Intensive Care Unit and Emergency Department, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Wenbo Hao
- Department of Thoracic Surgery, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Shudong Lin
- Department of Clinical Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Yuanyuan Wang
- Department of Clinical Pharmacy, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Xuzhi Liu
- Department of Third Division of Aspiration Medicine, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Xianguo Meng
- Intensive Care Unit and Emergency Department, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China
| | - Zhanjiang Guan
- Intensive Care Unit and Emergency Department, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, China.
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Tao J, Hu Y. Diagnostic and prognostic significance of lncRNA SOX2-OT in patients with carotid atherosclerosis. BMC Cardiovasc Disord 2022; 22:211. [PMID: 35538435 PMCID: PMC9088074 DOI: 10.1186/s12872-022-02634-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022] Open
Abstract
Background This paper aimed to analyze IncRNA SOX2-OT expression in patients with carotid atherosclerosis and to elucidate the predictive significance of SOX2-OT on carotid atherosclerosis. Methods The levels of SOX2-OT from 185 participants were tested. The relationship between CIMT levels and SOX2-OT expression was examined by Pearson analysis. The clinical value of SOX2-OT was investigated by the ROC curve, K–M curve, and COX regression analysis. The comparison of SOX2-OT expression between patients with good prognosis and poor prognosis was also performed. Results The expression of SOX2-OT was augmented in the patients with carotid atherosclerosis and was correlated with the level of CIMT. The high level of SOX2-OT might be a risk factor for carotid atherosclerosis. An enhancement of SOX2-OT expression was found in patients with poor prognosis. SOX2-OT might be an independent prognostic biomarker. Conclusions SOX2-OT was upregulated in patients with carotid atherosclerosis and might be a predictive indicator in the progression of carotid atherosclerosis.
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Affiliation(s)
- Jianping Tao
- Department of Cardiology, Shanghai Sixth People's Hospital Affiliated to Shanghai JiaoTong University, 600 Yishan Road, Shanghai, 200233, China
| | - Yu Hu
- Department of Cardiology, Shanghai Sixth People's Hospital Affiliated to Shanghai JiaoTong University, 600 Yishan Road, Shanghai, 200233, China.
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Yi C, Gu T, Li Y, Zhang Q. Depression of long non-coding RNA SOX2 overlapping transcript attenuates lipopolysaccharide-induced injury in bronchial epithelial cells via miR-455-3p/phosphatase and tensin homolog axis and phosphatidylinositol 3-kinase/protein kinase B pathway. Bioengineered 2022; 13:13643-13653. [PMID: 35674016 PMCID: PMC9275861 DOI: 10.1080/21655979.2022.2083820] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Airway inflammation is associated with various respiratory diseases, and previous research has confirmed that long non-coding RNAs (lncRNAs) play imperative roles in inflammatory responses. However, the function of lncRNA SOX2 overlapping transcript (SOX2-OT) in airway inflammation remains enigmatic. This study aimed to investigate the effects of SOX2-OT on lipopolysaccharide (LPS)–induced cell injury in human bronchial epithelial cells, BEAS-2B, and its potential mechanisms. The results showed increased cell apoptotic ratio, production of inflammatory cytokines, higher expression of adhesion molecules and activation of NF-κB in LPS–stimulated BEAS-2B cells. In LPS–stimulated BEAS-2B cells, SOX2-OT up-regulation and miR-455-3p down-regulation emerged simultaneously. SOX2-OT knockdown or miR-455-3p over-expression restrained LPS–induced inflammation and injury. SOX2-OT sponged to miR-455-3p and functioned as a ceRNA. In addition, phosphatase and tensin homolog (PTEN) served as an endogenous target of miR-455-3p to modulate the phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) pathway and disturb the alleviated consequence of miR-455-3p over-expression on LPS–induced BEAS-2B cell inflammation and cell injury. Our data demonstrated that SOX2-OT plays a pivotal role in LPS–induced inflammation and injury in BEAS-2B cells and exerts its function through the miR-455-3p/PTEN axis and modulation of the PI3K/AKT pathway.
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Affiliation(s)
- Chunhua Yi
- Department of Emergency, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Tijun Gu
- Department of Emergency, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Yongchang Li
- Department of Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Qian Zhang
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
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Yang P, Liang K, Wang W, Zhou D, Chen Y, Jiang X, Fu R, Zhu B, Lin X. LncRNA SOX2-OTinhibitionprotects against myocardialischemia/reperfusion-inducedinjury via themicroRNA-186-5p (miR-186-5p)/Yin Yang 1 (YY1)pathway. Bioengineered 2022; 13:280-290. [PMID: 34967264 PMCID: PMC8805857 DOI: 10.1080/21655979.2021.2000229] [Citation(s) in RCA: 4] [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: 09/29/2021] [Accepted: 10/27/2021] [Indexed: 01/15/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) exert essential effects in regulating myocardial ischemia/reperfusion (MI/R)-induced injury. This work intended to explore the functions of lncRNA SOX2-OT and its regulatory mechanism within MI/R-induced injury. In this study, gene expression was determined by RT-qPCR. Western blotting was applied for the detection of protein levels. Pro-inflammatory cytokine concentrations, cardiomyocyte viability, and apoptosis were detected via ELISA, CCK-8 and flow cytometry. In the in vitro model, SOX2-OT and YY1 were both upregulated, while miR-186-5p was downregulated. SOX2-OT knockdown attenuated oxygen-glucose deprivation/reoxygenation (OGD/R)-induced cardiomyocyte dysregulation through relieving inflammation, promoting proliferation, and reducing apoptosis in OGD/R-treated H2C9 cells. SOX2-OT positively regulated YY1 expression via miR-186-5p. Moreover, miR-186-5p inhibition or YY1 upregulation abolished the effects of SOX2-OT blocking on the inflammatory responses, proliferation, and apoptosis of OGD/R-challenged H2C9 cells. In conclusion, our results, for the first time, demonstrated that SOX2-OT inhibition attenuated MI/R injury in vitro via regulating the miR-186-5p/YY1 axis, offering potential therapeutic targets for MI/R injury treatment.
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Affiliation(s)
- Pengjie Yang
- Department of Thoracic Surgery, Affiliated People’s Hospital of Inner Mongolia Medical University
| | - Kun Liang
- Geriatric Medical Center, Inner Mongolia People’s Hospital, Hohhot, China
| | - Weisong Wang
- Department of Dispensary, Affiliated Hospital of Inner Mongolia Medical University
| | - Dehua Zhou
- Department of Emergency, People’s Hospital of Inner Mongolia Autonomous Region
| | - Yuan Chen
- Department of Pharmacy, Affiliated People’s Hospital of Inner Mongolia Medical University, Hohhot, P.R.China
| | - Xueyan Jiang
- Department of Pharmacy, Affiliated People’s Hospital of Inner Mongolia Medical University, Hohhot, P.R.China
| | - Rong Fu
- Department of Pharmacy, Affiliated People’s Hospital of Inner Mongolia Medical University, Hohhot, P.R.China
| | - Benben Zhu
- Department of Pharmacy, Affiliated People’s Hospital of Inner Mongolia Medical University, Hohhot, P.R.China
| | - Xuefeng Lin
- Department of Cardiovascular Medicine, First Affiliated Hospital of Baotou Medical College, Baotou, P.R.China
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Lai Y, Dong L, Jin H, Li H, Sun M, Li J. Exosome long non-coding RNA SOX2-OT contributes to ovarian cancer malignant progression by miR-181b-5p/SCD1 signaling. Aging (Albany NY) 2021; 13:23726-38. [PMID: 34690112 DOI: 10.18632/aging.203645] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 05/11/2021] [Indexed: 01/20/2023]
Abstract
Ovarian cancer is a common gynecologic cancer with increased mortality and morbidity. Exosome-delivered long non-coding RNAs have been well found in cancer development. However, the function of exosomal SOX2-OT in ovarian cancer development is still unreported. In the present study, we were interested in the investigation of the effect of exosomal SOX2-OT during ovarian cancer pathogenesis. Significantly, we revealed that the SOX2-OT expression levels were up-regulated in the ovarian cancer patients' plasma exosomes. The depletion of exosomal SOX2-OT inhibited migration, invasion, and proliferation and induced apoptosis in ovarian cancer cells. In mechanical exploration, SOX2-OT could sponge miR-181b-5p, and miR-181b-5p was able to target SCD1 in the ovarian cancer cells. The SCD1 overexpression and miR-181b-5p inhibitor could reverse exosomal SOX2-OT-mediated ovarian cancer progression. Functionally, the depletion of exosomal SOX2-OT significantly reduced tumor growth of ovarian cancer cells in vivo. In summary, we concluded that exosomal SOX2-OT enhanced ovarian cancer malignant phenotypes by miR-181b-5p/SCD1 axis. Our finding presents novel insights into the mechanism by which exosomal lncRNA SOX2-OT promotes ovarian cancer progression. SOX2-OT, miR-181b-5p, and SCD1 may serve as potential targets for the treatment of ovarian cancer.
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Wang H, Hu Q, Tong Y, Li S, Chen M, Wang B, Li H. LncRNA SOX2-OT regulates miR-192-5p/RAB2A axis and ERK pathway to promote glioblastoma cell growth. Cell Cycle 2021; 20:2010-2020. [PMID: 34470582 DOI: 10.1080/15384101.2021.1965722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Glioblastoma (GBM) is the most frequent tumor in the central nervous system. Long non-coding RNAs (lncRNAs) have been widely accepted as essential participators in cancer progression. Nonetheless, the specific role and mechanism of lncRNA SRY-box transcription factor 2 overlapping transcript (SOX2-OT) in GBM have not been studied. We evaluated expression levels of SOX2-OT, miR-192-5p and Ras-related protein Rab-2A (RAB2A) in GBM cells via qRT-PCR. To investigate the roles of SOX2-OT in GBM cells, CCK-8, JC-1, EdU, and western blot assays were performed. The connection among SOX2-OT, miR-192-5p and RAB2A in GBM cells was explored through pull down, luciferase reporter, and RIP assays. Western blot and qRT-PCR were employed to analyze the activity of extracellular-signal-regulated kinase (ERK) signaling pathway. SOX2-OT expression was higher in GBM cell lines than in normal cells. SOX2-OT knockdown repressed proliferation and promoted apoptosis of GBM cells. Mechanism assays revealed that SOX2-OT could sponge miR-192-5p. Moreover, RAB2A was certified to be the target gene of miR-192-5p. Overexpression of RAB2A reversed the repressive function of SOX2-OT knockdown on GBM cell growth. Furthermore, SOX2-OT activated ERK signaling pathway in GBM cells. SOX2-OT regulated miR-192-5p/RAB2A axis and ERK pathway to promote GBM cell growth.
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Affiliation(s)
- Hongcai Wang
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Qinglei Hu
- Department of Neurosurgery, The People's Hospital of Rizhao City, Rizhao, Shandong, China
| | - Yilei Tong
- Department of Internal Medicine, Ningbo Huamei Hospital University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
| | - Shiwei Li
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Maosong Chen
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Boding Wang
- Department of Neurosurgery, Li Hui Li Hospital of Medical Centre of Ningbo, Ningbo, Zhejiang, China
| | - Haimeng Li
- Department of Neurosurgery, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
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Chen Z, Chen Z, Xu S, Zhang Q. LncRNA SOX2-OT/miR-30d-5p/PDK1 Regulates PD-L1 Checkpoint Through the mTOR Signaling Pathway to Promote Non-small Cell Lung Cancer Progression and Immune Escape. Front Genet 2021; 12:674856. [PMID: 34394184 PMCID: PMC8362601 DOI: 10.3389/fgene.2021.674856] [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: 03/02/2021] [Accepted: 05/24/2021] [Indexed: 01/25/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. Currently, treatment methods generally cause poor prognosis. Therefore, in order to seek new treatment options, we explored the internal mechanism of NSCLC. Firstly, the SOX2-OT/miR-30d-5p/PDK1 axis regulated by lncRNA SOX2-OT was predicted by bioinformatics methods, and the expression of SOX2-OT, miR-30d-5p, and PDK1 mRNA in cells were detected by qRT-PCR while PDK1 protein expression was detected by western blot. The results expressed that in NSCLC, SOX2-OT, and PDK1 were notably overexpressed while miR-30d-5p was markedly under-expressed. The interaction between them was verified by dual-luciferase reporter and RNA binding protein immunoprecipitation assays. Subsequently, through CCK8, scratch healing, cell invasion and flow cytometry assays, we revealed that inhibiting the expression of SOX2-OT could inhibit the proliferation, migration and invasion of NSCLC cells and promote cell apoptosis; while simultaneous overexpression of PDK1 or inhibition of miR-30d-5p expression could reverse the inhibitory effect of SOX2-OT silence-mediated malignant progression of NSCLC cells. Then, the combined application of overexpressed PDK1 and rapamycin verified that PDK1 could regulate the expression of PD-L1 in NSCLC cells through the mTOR signaling pathway. Co-culture of CD8+ T cells verified that silencing SOX2-OT could inhibit the apoptosis of CD8+ T cells through miR-30d-5p/PDK1. Finally, tumor formation assay in animals confirmed that overexpression of SOX2-OT could promote the growth of NSCLC tumor in vivo. In this study, assays in vitro and in vivo were conducted to elucidate the mechanism by which SOX2-OT/miR-30d-5p/PDK1 drives PD-L1 through the mTOR signaling pathway to promote the malignant progression and immune escape of NSCLC.
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Affiliation(s)
- Zhoumiao Chen
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Zhao Chen
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Shaohua Xu
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Qiang Zhang
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, China
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12
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Fu Y, Li B, Yun J, Xu J, Meng Q, Li X, Chen R. lncRNA SOX2-OT ceRNA network enhances the malignancy of long-term PM 2.5-exposed human bronchial epithelia. Ecotoxicol Environ Saf 2021; 217:112242. [PMID: 33895495 DOI: 10.1016/j.ecoenv.2021.112242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 03/31/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Exposure to fine particulate matter (PM2.5) in outdoor air is carcinogenic and associated with the development of lung cancer; however, the underlying mechanism remains unclear. In the present study, the profiles of lncRNA, microRNA and mRNA expression profiles in human bronchial epithelia (HBE) following exposure to PM2.5, diesel exhaust particles (DEPs), or aluminum oxide nanoparticles (Al2O3 NPs) were explored by microarray to reveal the lncRNA-microRNA-mRNA network participating in the malignant transformation of HBE cells following long-term PM2.5 exposure. The results showed that lncRNA SOX2 overlapping transcript (SOX2-OT) was significantly induced in HBE cells exposed to PM2.5, DEPs, or Al2O3 NPs, acting as a sponge to microRNA-345-5p, which subsequently increased the expression levels of epidermal growth factor receptor (EGFR). EGFR is a therapeutic target in non-small cell lung cancer. Here, we found that SOX2-OT is an upstream trigger of EGFR in HBE cells during long-term PM2.5 exposure. Importantly, SOX2-OT knockdown effectively reduced the colony formation and migration capacities of HBE cells, compared to the wild type control. Collectively, SOX2-OT/microRNA-345-5p/EGFR is a ceRNA mechanism underlying the malignant transformation of bronchial epithelia exposed to PM2.5, which improves our understanding of the association between ambient PM2.5 exposure and the development of lung cancer.
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Affiliation(s)
- You Fu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Bin Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Jun Yun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Jie Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Qingtao Meng
- School of Public Health, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, PR China
| | - Xiaobo Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China.
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, PR China; School of Public Health, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, PR China.
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13
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Herrera‐Solorio AM, Peralta‐Arrieta I, Armas López L, Hernández‐Cigala N, Mendoza Milla C, Ortiz Quintero B, Catalán Cárdenas R, Pineda Villegas P, Rodríguez Villanueva E, Trejo Iriarte CG, Zúñiga J, Arrieta O, Ávila‐Moreno F. LncRNA SOX2-OT regulates AKT/ERK and SOX2/GLI-1 expression, hinders therapy, and worsens clinical prognosis in malignant lung diseases. Mol Oncol 2021; 15:1110-1129. [PMID: 33433063 PMCID: PMC8024737 DOI: 10.1002/1878-0261.12875] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/31/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
The involvement of LncRNA SOX2-overlapping transcript (SOX2-OT), SOX2, and GLI-1 transcription factors in cancer has been well documented. Nonetheless, it is still unknown whether co-expressed SOX2-OT/SOX2 or SOX2-OT/SOX2/GLI-1 axes are epigenetically/transcriptionally involved in terms of resistance to oncology therapy and in poorer clinical outcomes for patients with lung cancer. We evaluated the role of SOX2-OT/SOX2 and SOX2-OT/SOX2/GLI-1 axes using RT-qPCR, western blot, immunofluorescence analyses, gene silencing, cellular cytotoxic, and ChIP-qPCR assays on human cell lines, solid lung malignant tumors, and normal lung tissue. We detected that the SOX2-OT/SOX2/GLI-1 axis promotes resistance to tyrosine kinase inhibitor (TKI)-erlotinib and cisplatin-based therapy. Evidence from this study show that SOX2-OT modulates the expression/activation of EGFR-pathway members AKT/ERK. Further, both SOX2-OT and GLI-1 genes are epigenetically regulated at their promoter sequences, in an LncRNA SOX2-OT-dependent manner, mainly through modifying the enrichment of the activation histone mark H3K4me3/H3K27Ac, versus the repressive histone mark H3K9me3/H3K27me3. In addition, we identified that inhibition of SOX2-OT and reduced expression of SOX2/GLI-1 sensitizes lung cancer cells to EGFR/TKI-erlotinib or cisplatin-based treatment. Finally, we show that high co-expression of SOX2-OT/SOX2 transcripts and SOX2/GLI-1 proteins appears to correlate with a poor clinical prognosis and lung malignant phenotype. Collectively, these results present evidence that LncRNA SOX2-OT modulates an orchestrated resistance mechanism, promoting poor prognosis and human lung malignancy through genetic, epigenetic, and post-translational mechanisms.
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Affiliation(s)
- Abril Marcela Herrera‐Solorio
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Irlanda Peralta‐Arrieta
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Leonel Armas López
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Nallely Hernández‐Cigala
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Criselda Mendoza Milla
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Blanca Ortiz Quintero
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Rodrigo Catalán Cárdenas
- Thoracic Oncology UnitLaboratory of Personalized MedicineInstituto Nacional de Cancerología (INCAN)Mexico CityMexico
| | - Priscila Pineda Villegas
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
| | - Evelyn Rodríguez Villanueva
- Grupo de Investigación en Células Troncales e Ingeniería de Tejidos (GICTIT)Laboratorio de Investigación en Odontología AlmarazFES‐IztacalaNational Autonomous University of México (UNAM)Tlalnepantla de BazMexico
| | - Cynthia G. Trejo Iriarte
- Grupo de Investigación en Células Troncales e Ingeniería de Tejidos (GICTIT)Laboratorio de Investigación en Odontología AlmarazFES‐IztacalaNational Autonomous University of México (UNAM)Tlalnepantla de BazMexico
| | - Joaquín Zúñiga
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
| | - Oscar Arrieta
- Thoracic Oncology UnitLaboratory of Personalized MedicineInstituto Nacional de Cancerología (INCAN)Mexico CityMexico
| | - Federico Ávila‐Moreno
- Biomedicine Research Unit (UBIMED)Lung Diseases and Cancer Epigenomics LaboratoryFacultad de Estudios Superiores (FES) IztacalaNational Autonomous University of Mexico (UNAM)Tlalnepantla de BazMexico
- National Institute of Respiratory Diseases (INER), Ismael Cosío VillegasMexico CityMexico
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Tu J, Ma L, Zhang M, Zhang J. Long Non-Coding RNA SOX2 Overlapping Transcript Aggravates H9c2 Cell Injury via the miR-215-5p/ZEB2 Axis and Promotes Ischemic Heart Failure in a Rat Model. TOHOKU J EXP MED 2021; 254:221-231. [PMID: 34321385 DOI: 10.1620/tjem.254.221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Heart failure is a common cardiovascular disease, which has been regarded as one of the highest health care costs with high morbidity and mortality in the western countries. Long noncoding RNAs have been widely reported to regulate the initiation or progression of cardiovascular diseases. However, the specific role of SOX2 overlapping transcript (SOX2-OT) in ischemic heart failure remains uncharacterized. The present study aimed to explore the function and mechanism of SOX2-OT in ischemic heart failure. The starBase website was used to predict potential miRNAs or target mRNAs. Western blot assay was implemented to test collagen protein levels. Functional assays were conducted to evaluate the effects of SOX2-OT on H9c2 cell viability and apoptosis. RNA pull down and luciferase reporter assays were used to confirm the combination between miR-215-5p and SOX2-OT. We found out that SOX2-OT level was increased by oxygen glucose deprivation/reoxygenation treatment in H9c2 cells. Silencing of SOX2-OT ameliorated cell injury by promoting cell viability, inhibiting cell apoptosis and reducing productions of collagens. Mechanistically, miR-215-5p was confirmed to bind with SOX2-OT after prediction and screening. In addition, we discovered that miR-215-5p negatively regulated zinc finger E-box binding homeobox 2 (ZEB2) protein level by directly binding with ZEB2 3' untranslated region. Finally, we verified that SOX2-OT aggravated cell injury by targeting ZEB2 in H9c2 cells. In conclusion, SOX2-OT aggravated heart failure in vivo and promoted H9c2 cell injury via the miR-215-5p/ZEB2 axis in vitro, implying a novel insight into heart failure treatment.
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Affiliation(s)
- Jiahong Tu
- Department of Emergency, Beijing Jishuitan Hospital
| | - Liping Ma
- Department of Emergency, Beijing Jishuitan Hospital
| | | | - Jie Zhang
- Department of Anesthesiology, Dongzhimen Hospital Beijing University of Chinese Medicine
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15
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Song X, Wang H, Wu J, Sun Y. Long Noncoding RNA SOX2-OT Knockdown Inhibits Proliferation and Metastasis of Prostate Cancer Cells Through Modulating the miR-452-5p/HMGB3 Axis and Inactivating Wnt/β-Catenin Pathway. Cancer Biother Radiopharm 2020; 35:682-695. [PMID: 32407168 DOI: 10.1089/cbr.2019.3479] [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] [Indexed: 12/23/2022] Open
Abstract
Background: Recent studies have proven that abnormal expression of long noncoding RNAs (lncRNAs) often contributes to growth and invasion of cancer cells. The purpose of this study was to investigate the biological function and regulatory mechanism of lncRNA SOX2 overlapping transcript (SOX2-OT) in prostate cancer (PCa) progression. Materials and Methods: The expression of SOX2-OT, microRNA-452-5p (miR-452-5p), and high mobility group box 3 (HMGB3) was detected by quantitative real-time polymerase chain reaction (qRT-PCR). Flow cytometry was performed to determine the cell cycle distribution. Western blot assay was conducted to measure the protein levels of cyclin D1, p21, p27, E-cadherin, vimentin, and N-cadherin. The interaction between miR-452-5p and SOX2-OT or HMGB3 was predicted by bioinformatics analysis and verified by dual-luciferase reporter assay and RNA immunoprecipitation assay. The mice xenograft model was established to investigate the role of SOX2-OT in vivo. Results: SOX2-OT and HMGB3 were upregulated, whereas miR-452-5p was downregulated in PCa tissues and cells. Knockdown of SOX2-OT inhibited PCa cell growth and metastasis. MiR-452-5p could directly bind to SOX2-OT and its knockdown reversed the inhibitory effects of SOX2-OT interference on growth and metastasis of PCa cells. HMGB3 was a direct target of miR-452-5p and its knockdown weakened the promotive effects of miR-452-5p silence on growth and metastasis of PCa cells. Moreover, HMGB3 expression was inversely regulated by miR-452-5p and positively modulated by SOX2-OT. Furthermore, SOX2-OT activated the Wnt/β-catenin signaling pathway through increasing HMGB3 expression. Finally, SOX2-OT knockdown hindered tumor growth in vivo by regulating miR-452-5p/HMGB3 axis. Conclusions: SOX2-OT downregulation limited PCa cell growth and metastasis by regulating miR-452-5p/HMGB3 axis and inactivating Wnt/β-catenin signaling pathway, which might offer lncRNA-directed diagnosis and therapy for PCa.
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Affiliation(s)
- Xiaofei Song
- Department of Urology, Fudan University, Minhang Hospital, Shanghai, China
| | - Hang Wang
- Department of Urology, Fudan University, Zhongshan Hospital, Shanghai, China
| | - Jiawen Wu
- Department of Urology, Fudan University, Minhang Hospital, Shanghai, China
| | - Yang Sun
- Department of Urology, Fudan University, Minhang Hospital, Shanghai, China
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16
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Gu Q, Wang B, Zhao H, Wang W, Wang P, Deng Y. LncRNA promoted inflammatory response in ischemic heart failure through regulation of miR-455-3p/TRAF6 axis. Inflamm Res 2020; 69:667-681. [PMID: 32350569 DOI: 10.1007/s00011-020-01348-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/14/2020] [Accepted: 04/08/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Ischemic heart failure (IHF) is the most common cause of death globally. Growing evidence shows abnormal expression of long non-coding RNAs in heart failure patients. This study aims to investigate the effect of sex-determining region Y-box 2 (SOX2) overlapping transcript (SOX2-OT) on the regulation of the inflammatory response in ischemic heart failure. METHODS IHF rat and oxygen and glucose deprivation (OGD) cell models were established. qRT-PCR was employed to investigate the expression of SOX2-OT. ELISA, western blot and cell viability/apoptosis assays were performed to assess the effects of SOX2-OT. Online software program was used to identify miRNAs that target SOX2-OT, followed by validation using RNA pull-down. Potential targets of miRNAs were searched, and examined by immunoblotting, qRT-PCR and luciferase reporter assay. RESULTS SOX2-OT was up-regulated in IHF and OGD. Knockdown of SOX2-OT promoted cell proliferation, decreased apoptosis rate and cell oxidative damage, and ameliorated inflammatory response. SOX2-OT contains binding sites for miR-455-3p, miR-5586-3p and miR-1252-5p. RNA pull-down confirmed the binding ability between SOX2-OT and miR-455-3p. TRAF6 is a direct target of miR-455-3p. Moreover, the regulatory activity of SOX2-OT on inflammatory response was partially through its negative regulation of miR-455-3p, which directly regulates TRAF6. Down-regulation of SOX2-OT improved myocardial dysfunction in IHF rat. CONCLUSIONS Our results reveal that SOX2-OT may be a driver of IHF through repression of miR-455-3p, and miR-455-3p alleviates IHF by targeting TRAF6. Therefore, SOX2-OT/miR-455-3p/TRAF6 may be a potential target for advanced therapeutic strategy for IHF.
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Affiliation(s)
- Qianqian Gu
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China.
| | - Bin Wang
- Department of Otorhinolaryngology, Cangzhou Central Hospital, Cangzhou, 061000, Hebei, China
| | - Hongying Zhao
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Wenjuan Wang
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Pengsheng Wang
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
| | - Yu Deng
- Department of Geriatrics, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou, 061000, Hebei, China
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17
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Li G, Pan C, Sun J, Wan G, Sun J. lncRNA SOX2-OT regulates laryngeal cancer cell proliferation, migration and invasion and induces apoptosis by suppressing miR-654. Exp Ther Med 2020; 19:3316-3324. [PMID: 32266028 PMCID: PMC7132247 DOI: 10.3892/etm.2020.8577] [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: 06/04/2019] [Accepted: 01/13/2020] [Indexed: 12/17/2022] Open
Abstract
Laryngeal carcinoma is the most common type of malignant tumor in the head and neck. Long non-coding RNAs (lncRNAs) serve crucial roles in numerous biological processes. The present study aimed to investigate the role of lncRNA SOX2-OT in laryngeal cancer and to reveal the underlying mechanisms. Reverse transcription-quantitative PCR assays were used to measure the expression levels of SOX2-OT in the laryngeal cell lines. Furthermore, cell proliferation, apoptosis, migration and invasion were assessed by CCK-8, flow cytometry, wound healing and Transwell assays, respectively. Western blot assay was performed to detect the protein expressions. In addition, a dual-luciferase reporter assay was performed to confirm the direct interaction between SOX2-OT and microRNA (miR)-654. The data demonstrated that SOX2-OT level were significantly increased in the laryngeal cell lines. Furthermore, SOX2-OT silencing markedly promoted apoptosis and suppressed the proliferation, migration and invasion of TU-177 cells. A dual-luciferase reporter assay revealed that miR-654 was a direct target of SOX2-OT. Moreover, downregulation of miR-654 could attenuate cell apoptosis and accelerate cell proliferation, migration and invasion in TU-177 cells. In summary, the present study reported that knockdown of SOX2-OT could suppress cell proliferation, migration and invasion, and induce apoptosis in laryngeal cancer by targeting miR-654.
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Affiliation(s)
- Guang Li
- School of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China.,Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China.,Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Chunchen Pan
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Jiaqiang Sun
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Guanglun Wan
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
| | - Jingwu Sun
- School of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China.,Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
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18
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Li Y, Du M, Wang S, Zha J, Lei P, Wang X, Wu D, Zhang J, Chen D, Huang D, Lu J, Li H, Sun M. Clinicopathological Implication of Long Non-Coding RNAs SOX2 Overlapping Transcript and Its Potential Target Gene Network in Various Cancers. Front Genet 2020; 10:1375. [PMID: 32038720 PMCID: PMC6989546 DOI: 10.3389/fgene.2019.01375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 07/25/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background SOX2 overlapping transcript (SOX2-OT) produces alternatively spliced long non-coding RNAs (lncRNA). Previous studies of the prognostic role of SOX2-OT expression met with conflicting results. The aim of this study was to properly consider the prognostic role of SOX2-OT expression in several cancers. In addition, the regulative mechanism of SOX2-OT is explored. Methods PubMed, EMBASE, and Cochrane Library and The Cancer Genome Atlas (TCGA) database were comprehensively explored to recover pertinent studies. We conducted an extensive inquiry to verify the implication of SOX2-OT expression in cancer patients by conducting a meta-analysis of 13 selected studies. Thirty-two TCGA databases were used to analyze the connection between SOX2-OT expression and both the overall survival (OS) and clinicopathological characteristics of cancer patients using R and STATA 13.0. Trial sequential analysis (TSA) was adopted in order to compute the studies' power. Results Thirteen studies involving 1172 cancer patients and 32 TCGA cancer types involving 9676 cancer patients were eventually selected. Elevated SOX2-OT expression was significantly related to shorter OS (HR = 2.026, 95% CI: 1.691-2.428, P < 0.0001) and disease-free survival (DFS) (HR = 2.554, 95% CI: 1.261-5.174, P = 0.0092) in cancer patients. Meanwhile, TSA substantiated adequate power to demonstrate the relationship between SOX2-OT expression and OS. The cancer patients with elevated SOX2-OT expression were more likely to have advanced clinical stage (RR = 1.468, 95% CI: 1.106-1.949, P = 0.0079), earlier lymphatic metastasis (P = 0.0005), earlier distant metastasis (P < 0.0001), greater tumor size (P < 0.0001), and more extreme tumor invasion (P < 0.0001) compared to those with low SOX2-OT expression. Meta-regression and subgroup analysis revealed that follow-up time, sample type, and tumor type could significantly contribute to heterogeneity for survival outcomes. The follow-up time could significantly explain heterogeneity for tumor, node, metastasis (TNM) stage. Furthermore, up to 500 validated target genes were distinguished, and the gene oncology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses demonstrated that the validated targets of SOX2-OT were substantially enriched in cell adhesion, mRNA binding, and mRNA surveillance pathways. Conclusions Elevated expression of SOX2-OT predicted a poor OS and DFS. Overexpression of SOX2-OT was correlated with more advanced tumor stage, earlier lymphatic metastasis, earlier distant metastasis, larger tumor size, and deeper tumor invasion. SOX2-OT-mediated cell adhesion, mRNA binding, or mRNA surveillance could be intrinsic mechanisms for invasion and metastasis.
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Affiliation(s)
- Yishu Li
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Mengyu Du
- Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Shengsheng Wang
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jin Zha
- Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Peijie Lei
- The First Clinical School, Hubei University of Medicine, Shiyan, China
| | - Xueqi Wang
- Institute of Medicine and Nursing, Hubei University of Medicine, Shiyan, China
| | - Di Wu
- Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jianhua Zhang
- Institute of Medicine and Nursing, Hubei University of Medicine, Shiyan, China
| | - Denggang Chen
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Dong Huang
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jing Lu
- Department of Medical Imaging, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Heng Li
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Min Sun
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Department of Anesthesiology, Institute of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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19
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Wo Q, Zhang D, Hu L, Lyu J, Xiang F, Zheng W, Shou J, Qi X. Long noncoding RNA SOX2-OT facilitates prostate cancer cell proliferation and migration via miR-369-3p/CFL2 axis. Biochem Biophys Res Commun 2019; 520:586-593. [PMID: 31623830 DOI: 10.1016/j.bbrc.2019.09.108] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 08/23/2019] [Accepted: 09/25/2019] [Indexed: 01/09/2023]
Abstract
Accepted as crucial participators in human malignancies, long noncoding RNAs (lncRNAs) have been proven to exert significant function on the complicated processes of cancer progression. Although existing investigations have revealed the oncogenic role of lncRNA SOX2 overlapping transcript (SOX2-OT) in different kinds of cancers, such as osteosarcoma and cholangiocarcinoma, the potential role of it in prostate cancer (PC) is poorly understood. This study was the first attempt to decipher the underlying regulatory mechanism of SOX2-OT in PC. According to the data from this study, SOX2-OT expression was conspicuously elevated in PC tissues and cells. Silenced SOX2-OT could repress PC cell proliferation and migration. Besides, mechanism assays manifested that SOX2-OT bound with miR-369-3p and negatively correlated with miR-369-3p in PC. Additionally, miR-369-3p was confirmed to elicit suppressive impact on PC progression. What's more, cofilin 2 (CFL2) was testified to be a downstream target gene of miR-369-3p. Final rescue tests uncovered that CFL2 upregulation or miR-369-3p inhibition could largely restore SOX2-OT knockdown-mediated function on PC progression. To sum up, SOX2-OT accelerates cell proliferation and migration by targeting miR-369-3p/CFL2 axis in PC.
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Affiliation(s)
- Qijun Wo
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Dahong Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China.
| | - Linyi Hu
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Jia Lyu
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Fei Xiang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Wei Zheng
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Jiafeng Shou
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Xiaolong Qi
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, China; Department of Urology, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
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Teng Y, Kang H, Chu Y. Identification of an Exosomal Long Noncoding RNA SOX2-OT in Plasma as a Promising Biomarker for Lung Squamous Cell Carcinoma. Genet Test Mol Biomarkers 2019; 23:235-240. [PMID: 30986097 DOI: 10.1089/gtmb.2018.0103] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [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: 02/06/2023] Open
Abstract
AIMS Evaluation of nucleic acids in plasma exosomes is a noninvasive method that can be used to detect different types of cancer. The aim of this study was to determine the value of exosomal long noncoding RNAs (lncRNAs) in detecting lung squamous cell carcinoma (LSCC). MATERIALS AND METHODS A total of 75 LSCC patients and 79 negative control subjects were enrolled in the study. Twenty differentially expressed lncRNAs were evaluated as potential candidates. Exosomes were isolated by ultracentrifugation, and lncRNA levels in exosomes were determined using real-time polymerase chain reaction. Receiver Operating Characteristic (ROC) curves were used to determine specificity and sensitivity. RESULTS Exosomal SOX2-OT was significantly upregulated in LSCC patients and showed the strongest power in detecting LSCC. The area under the ROC curve was 0.815, and the sensitivity and specificity were 76% and 73.17%, respectively. Moreover, exosomal SOX2-OT levels were significantly correlated with tumor size, TNM stage, and lymph node metastasis. Exosomal SOX2-OT levels were significantly decreased in the postoperative plasma of LSCC patients. CONCLUSION SOX2-OT may serve as a promising noninvasive plasma-based tumor biomarker for LSCC.
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Affiliation(s)
- Yun Teng
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, P.R. China
| | - Hui Kang
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, P.R. China
| | - Yang Chu
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, P.R. China
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21
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Zhang E, Li X. LncRNA SOX2-OT regulates proliferation and metastasis of nasopharyngeal carcinoma cells through miR-146b-5p/HNRNPA2B1 pathway. J Cell Biochem 2019; 120:16575-16588. [PMID: 31099048 DOI: 10.1002/jcb.28917] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 01/08/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 12/14/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is an aggressive malignancy with a high mortality on account of its frequent metastasis and poor prognosis. An extensive body of investigations has proven that long noncoding RNAs are implicated in a variety of biological processes. Although SOX2-OT has been reported to play an oncogenic role in osteosarcoma, the mechanism of SOX2-OT-driven NPC progression is still obscure. The aim of this study was to elucidate the biological function of SOX2-OT and the related possible mechanism in NPC. In our study, SOX2-OT was notably elevated in NPC samples and cells. Further, a high expression level of SOX2-OT was correlated with poor clinical outcomes of NPC. Results from loss-of-function experiments suggested that knockdown of SOX2-OT repressed cell proliferation, arrested cell cycle, facilitated cell apoptosis, and inhibited cell metastasis of NPC. To further investigate the molecular mechanism of SOX2-OT, miR-146b-5p was found to directly bind to SOX2-OT, which mediated the role of SOX2-OT in NPC tumorigenesis. In addition, HNRNPA2B1 was a target of miR-146b-5p and SOX2-OT modulated the expression of HNRNPA2B1 through competitively binding to miR-146b-5p. At last, we discovered that SOX2-OT regulated NPC progression by targeting miR-146b-5p/HNRNPA2B1 pathway, which may provide more innovative targets for the treatment of patients with NPC.
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Affiliation(s)
- Enqin Zhang
- Department of Otorhinolaryngology, Ankang in Shaanxi Province Chinese Traditional Medicine Hospital, Ankang, Shaanxi, China
| | - Xueping Li
- Department of Otorhinolaryngology, Ankang in Shaanxi Province Chinese Central Medicine Hospital, Ankang, Shaanxi, China
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Liu X, Kelsoe JR, Greenwood TA. A genome-wide association study of bipolar disorder with comorbid eating disorder replicates the SOX2-OT region. J Affect Disord 2016; 189:141-9. [PMID: 26433762 PMCID: PMC4640946 DOI: 10.1016/j.jad.2015.09.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [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: 07/10/2015] [Revised: 09/14/2015] [Accepted: 09/18/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Bipolar disorder is a heterogeneous mood disorder associated with several important clinical comorbidities, such as eating disorders. This clinical heterogeneity complicates the identification of genetic variants contributing to bipolar susceptibility. Here we investigate comorbidity of eating disorders as a subphenotype of bipolar disorder to identify genetic variation that is common and unique to both disorders. METHODS We performed a genome-wide association analysis contrasting 184 bipolar subjects with eating disorder comorbidity against both 1370 controls and 2006 subjects with bipolar disorder only from the Bipolar Genome Study (BiGS). RESULTS The most significant genome-wide finding was observed bipolar with comorbid eating disorder vs. controls within SOX2-OT (p=8.9×10(-8) for rs4854912) with a secondary peak in the adjacent FXR1 gene (p=1.2×10(-6) for rs1805576) on chromosome 3q26.33. This region was also the most prominent finding in the case-only analysis (p=3.5×10(-7) and 4.3×10(-6), respectively). Several regions of interest containing genes involved in neurodevelopment and neuroprotection processes were also identified. LIMITATIONS While our primary finding did not quite reach genome-wide significance, likely due to the relatively limited sample size, these results can be viewed as a replication of a recent study of eating disorders in a large cohort. CONCLUSIONS These findings replicate the prior association of SOX2-OT with eating disorders and broadly support the involvement of neurodevelopmental/neuroprotective mechanisms in the pathophysiology of both disorders. They further suggest that different clinical manifestations of bipolar disorder may reflect differential genetic contributions and argue for the utility of clinical subphenotypes in identifying additional molecular pathways leading to illness.
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Affiliation(s)
- Xiaohua Liu
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | | | - John R. Kelsoe
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA,San Diego Veterans Affairs Healthcare System, San Diego, CA,Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA
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