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Gonçalves JD, Ferraz JBS, Meirelles FV, Nociti RP, Oliveira MEF. An Exploratory Data Analysis from Ovine and Bovine RNA-Seq Identifies Pathways and Key Genes Related to Cervical Dilatation. Animals (Basel) 2023; 13:2052. [PMID: 37443850 DOI: 10.3390/ani13132052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/18/2023] [Accepted: 04/24/2023] [Indexed: 07/15/2023] Open
Abstract
The present study developed a review and exploration of data in public and already validated repositories. The main objective was to identify the pathways involved in ruminants' cervical dilatation, which are conserved between cattle and sheep in the follicular and luteal phases of the reproductive cycle. In cattle, 1961 genes were more differentially expressed in the follicular phase and 1560 in the luteal phase. An amount of 24 genes were considered exclusively expressed from these. A total of 18 genes were in the follicular phase and 6 genes were in the luteal phase. In sheep, 2126 genes were more differentially expressed in the follicular phase and 2469 genes were more differentially expressed in the luteal phase. Hoxb genes were identified in both species and are correlated with the PI3K/Akt pathway. PI3K/Akt was also found in both cattle and sheep, appearing prominently in the follicular and luteal phases of both species. Our analyses have pointed out that the PI3K/Akt pathway and the Hoxb genes appear in prominence in modulating mechanisms that involve estrus alterations in the cervix. PI3K/Akt appears to be an important pathway in the cervical relaxation process.
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Affiliation(s)
- Joedson Dantas Gonçalves
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinarian Sciences, São Paulo State University, Via de Acesso Prof. Paulo Donato Castellane, s/n, Jaboticabal 14884-900, SP, Brazil
| | - José Bento Sterman Ferraz
- Molecular Morphophysiology and Development Laboratory, Departament of Veterinary Medicine, Faculty of Food Engineering-FZEA, University of São Paulo, Av. Duque de Caxias Norte 255, Pirassununga 14635-900, SP, Brazil
| | - Flávio Vieira Meirelles
- Molecular Morphophysiology and Development Laboratory, Departament of Veterinary Medicine, Faculty of Food Engineering-FZEA, University of São Paulo, Av. Duque de Caxias Norte 255, Pirassununga 14635-900, SP, Brazil
| | - Ricardo Perecin Nociti
- Molecular Morphophysiology and Development Laboratory, Departament of Veterinary Medicine, Faculty of Food Engineering-FZEA, University of São Paulo, Av. Duque de Caxias Norte 255, Pirassununga 14635-900, SP, Brazil
| | - Maria Emilia Franco Oliveira
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinarian Sciences, São Paulo State University, Via de Acesso Prof. Paulo Donato Castellane, s/n, Jaboticabal 14884-900, SP, Brazil
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2
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Li S, Wang Y, Xuan Z, Zhang Y, Miao Z. High expression of homeobox B2 predicts poor survival of colon adenocarcinoma by enhancing tumor proliferation and invasion. Ir J Med Sci 2023; 192:89-97. [PMID: 35320486 DOI: 10.1007/s11845-022-02964-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 12/27/2021] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Homeobox B2 (HOXB2) is known to be correlated with the development and prognosis of various cancers. However, its role in colon cancer remains unclear. AIMS In this study, we explored the prognostic value of HOXB2 in colon adenocarcinoma (COAD). METHODS A total of 264 colon adenocarcinoma cases were retrospectively enrolled to evaluate HOXB2 expression and clinical significance. Chi-square test was applied to identify relationship between clinical features and HOXB2 expression. The effect of HOXB2 expression and clinical features on the survival of COAD patients was evaluated using Kaplan-Meier and Cox regression analyses. Cellular assays and mice models were conducted to validate the tumor-related role of HOXB2 in COAD. RESULTS Higher expression of HOXB2 in COAD tissues was significantly associated with tumor size, invasion depth, and lymph node metastasis (all P < 0.05). Univariate and multivariate analyses showed that high expression of HOXB2 was significantly correlated with a poor overall survival. In vitro cellular assays combined with knockdown strategies demonstrated that HOXB2 can promote tumor proliferation and invasion of COAD, which was further confirmed by in vivo xenograft experiments. CONCLUSIONS HOXB2 may be a valuable biomarker and potential therapeutic target for the treatment of COAD.
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Affiliation(s)
- Shengjie Li
- Department of Gastroenterology Surgery, Dalian Municipal Central Hospital, Liaoning, 116033, China
| | - Yujie Wang
- Department of Gastroenterology Surgery, Dalian Municipal Central Hospital, Liaoning, 116033, China
| | - Zhiqiang Xuan
- Department of Gastroenterology Surgery, Dalian Municipal Central Hospital, Liaoning, 116033, China
| | - Yue Zhang
- Department of Gastroenterology Surgery, Dalian Municipal Central Hospital, Liaoning, 116033, China
| | - Zhongxing Miao
- Department of Gastroenterology Surgery, Dalian Municipal Central Hospital, Liaoning, 116033, China.
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3
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Wu A, Liu J, Zhang X, Niu C, Shu G, Yin G. Comprehensive Network Analysis of Dysregulated Genes Revealed MNX1‐AS1/ hsa‐miR‐4697‐3p/ HOXB13 Axis in OC Chemotherapy Response. Cancer Sci 2022; 113:2627-2641. [PMID: 35639251 PMCID: PMC9357658 DOI: 10.1111/cas.15447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/17/2022] [Accepted: 05/27/2022] [Indexed: 12/03/2022] Open
Abstract
Poor chemotherapy response is the main obstacle of ovarian cancer (OC) treatment. Platinum‐refractory and ‐resistant patients are associated with a worse outcome than platinum‐sensitive and partially sensitive patients, but the comprehensive similarities and differences among them are not yet clear. In this study, we analyzed the data of patients with different chemotherapy response in The Cancer Genome Atlas. We found a minority of altered genes were overlapped in refractory and resistant groups, as did the enriched pathways and Gene Ontology terms. We noticed that the neural signaling and drug metabolism enzymes were more significantly enriched and the protein–protein interaction supported these results. The transcription analysis highlighted PDX1 as the common and central transcription factor in both refractory and resistant groups. The competing endogenous RNA (ceRNA) network shared no common ceRNA pairs, indicating a major difference in noncoding RNA post‐transcriptional regulation. In the end, we validated the expression, regulation, binding, and effect on chemotherapy response for selected MNX1‐AS1/hsa‐miR‐4697‐3p/HOXB13 in OC cell lines. Our study offered a novel and comprehensive insight into chemotherapy response, and potential targets for improving chemotherapy response in OC.
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Affiliation(s)
- Anqi Wu
- Department of Pathology Xiangya Hospital School of Basic Medical Sciences Central South University Changsha 410013 China
- The Second Affiliated Hospital Department of Clinical Research Center Hengyang Medical School University of South China Hengyang 421001 China
| | - Jiaqi Liu
- Department of Pathology Xiangya Hospital School of Basic Medical Sciences Central South University Changsha 410013 China
| | - Xiaojun Zhang
- Department of Pathology Xiangya Hospital School of Basic Medical Sciences Central South University Changsha 410013 China
| | - Chenxi Niu
- Department of Pathology Xiangya Hospital School of Basic Medical Sciences Central South University Changsha 410013 China
| | - Guang Shu
- Department of Pathology Xiangya Hospital School of Basic Medical Sciences Central South University Changsha 410013 China
- Department of Histology and Embryology School of Basic Medical Sciences Central South University Changsha 410013 China
| | - Gang Yin
- Department of Pathology Xiangya Hospital School of Basic Medical Sciences Central South University Changsha 410013 China
- China‐Africa Research Center of Infectious Diseases School of Basic Medical sciences Central South University Changsha 410013 China
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Li X, Chen S, Zhu Y, Fei J, Song L, Sun G, Niu W, Guo L, Wang J. Comprehensive bioinformatics analyses identified Homeobox B9 as a potential prognostic biomarker and therapeutic target for gastric cancer. J Gastrointest Oncol 2021; 12:2132-2149. [PMID: 34790380 DOI: 10.21037/jgo-21-598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/16/2021] [Indexed: 12/24/2022] Open
Abstract
Background The Homeobox B (HOXB) family promotes tumor progression, but the mechanism of its action in gastric cancer (GC) is unclear. We sought to identify the HOXB family members that are critical to the prognosis of GC patients. Methods The Oncomine, Gene Expression Profiling Interactive Analysis (GEPIA), cBioPortal, UALCAN, Kaplan-Meier plotter, and the GeneMANIA databases were used to analyze the messenger RNA (mRNA) expression levels, prognostic value, and gene-gene interaction network of the HOXB9 family members in GC. The expression of HOXB9 in GC and its relationship with various clinicopathological parameters and the prognosis of patients were verified by immunohistochemistry. Results The expression of HOXB3, HOXB5, HOXB6, HOXB7, HOXB9, and HOXB13 mRNA was significantly upregulated in GC. There was a significant correlation between the upregulation of HOXB3, HOXB5, and HOXB9 mRNA and a low overall survival (OS) rate. The high expression of HOXB7, HOXB9, and HOXB13 mRNA was closely correlated to tumor grade and stage. HOXB9 was the HOXB family member most closely related to the occurrence and development of GC. A further analysis showed that HOXB9 might be involved in deoxyribonucleic acid repair and division regulation. A validation study showed that the advanced cancer group had a higher level of HOXB9 expression than the early cancer group. The high expression of HOXB9 in gastric tissue plays an important role in the survival and prognosis of GC patients. Conclusions HOXB family members have different degrees of abnormal expression in GC. High HOXB9 expression in GC tissues was significantly correlated with a worse prognosis. Thus, HOXB9 is a potential novel biomarker and therapeutic target for GC.
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Affiliation(s)
- Xiaofei Li
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Shujia Chen
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yinghui Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jiayue Fei
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Liaoyuan Song
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Guoyan Sun
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Wei Niu
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Lianyi Guo
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jiwei Wang
- Department of Gastrointestinal Surgery, Xuzhou Central Hospital, Xuzhou, China
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HOXB5 promotes proliferation, migration, and invasion of pancreatic cancer cell through the activation of the GSK3β/β-catenin pathway. Anticancer Drugs 2021; 31:828-835. [PMID: 32796404 DOI: 10.1097/cad.0000000000000948] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Many homeobox (HOX) genes have been shown to be related to cancer progression. HOXB5, a member of the HOX genes, is overexpressed in retinoblastoma cancer and positively regulates the breast cancer cell proliferation as well as invasion. However, the role and underlying mechanism of HOXB5 in pancreatic cancer cells are still unclear. HOXB5 expression was measured in four pancreatic cancer cell lines, including PANC-1, ASPC-1, MIA-PaCa-2, and CFPAC-1. PANC-1 and ASPC-1 cells were selected for cell transfection experiments. Cell proliferation, migration, and invasion were measured by Cell Counting Kit-8 (CCK-8) assay, wound healing assay, and transwell assay. Expressions of epithelial-to-mesenchymal transition (EMT) markers were determined by western blotting. Immunofluorescence staining and cellular morphology were used to confirm the effect of HOXB5 dysregulation on pancreatic cancer cells. We found that HOXB5 was markedly expressed in pancreatic cancer cell lines. HOXB5 overexpression contributed to proliferation, migration, and invasion in ASPC-1 cells, whereas HOXB5 knockdown decreased proliferation, migration, and invasion of PANC-1 cells. Western blotting confirmed that overexpression of HOXB5 promoted the EMT process. Conversely, knockdown of HOXB5 alleviated EMT. Furthermore, knockdown of HOXB5 suppressed proliferation, migration, and invasion of pancreatic cancer cells via the Glycogen synthase kinase 3β (GSK3β)/β-catenin pathway. Our study demonstrates that HOXB5 is a tumor promoter in pancreatic cancer, and the GSK3β/β-catenin pathway is important in HOXB5-induced proliferation, migration, and invasion in pancreatic cancer cells.
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6
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Estrogen suppresses HOXB2 expression via ERα in breast cancer cells. Gene 2021; 794:145746. [PMID: 34062258 DOI: 10.1016/j.gene.2021.145746] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 04/27/2021] [Accepted: 05/27/2021] [Indexed: 11/20/2022]
Abstract
The expression of HOXB2, a homeobox transcription factor, is altered in a variety of solid tumors. Using an in vivo screen to identify regulators of breast tumor growth in murine mammary fat pads, Boimel and co-workers recently identified HOXB2 as a tumor suppressor. However, the mechanistic underpinnings of its role in breast cancer is not understood. Given the emerging interaction of estrogen-regulated gene expression and altered HOX gene expression network in the pathophysiology of breast cancer, this study addressed the relationship between estrogen signaling and HOXB2 expression. Using a mouse model and human breast cancer cell lines, we show that estrogen suppresses HOXB2 expression. Suppression of HOXB2 by PPT, a known ERα agonist, in MCF-7 and T47D cells indicated the involvement of ERα, which was confirmed by siRNA-mediated ERα knockdown experiments. In-silico analysis of the upstream promoter region revealed the presence of three putative EREs. Chromatin immunoprecipitation experiments showed that upon estrogen binding, ERα engaged with EREs in the 5' upstream region of HOXB2 in MCF-7 and T47D cells. Future investigations should address the implications of estrogen-mediated suppression on the proposed tumor suppressor function of HOXB2.
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7
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Guo C, Chu H, Gong Z, Zhang B, Li C, Chen J, Huang L. HOXB13 promotes gastric cancer cell migration and invasion via IGF-1R upregulation and subsequent activation of PI3K/AKT/mTOR signaling pathway. Life Sci 2021; 278:119522. [PMID: 33894267 DOI: 10.1016/j.lfs.2021.119522] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/06/2021] [Accepted: 04/10/2021] [Indexed: 12/18/2022]
Abstract
AIMS This study aimed at exploring HOXB13 expression and function in gastric cancer (GC), and the underlying molecular mechanism. MATERIALS AND METHODS HOXB13 and fat mass and obesity-associated protein (FTO) expression in GC and non-GC tissues of GC patients were analyzed using Gene Expression Profiling Interactive Analysis (GEPIA) and verified by quantitative reverse transcription-polymerase chain reaction (RT-qPCR) and western blotting. The regulatory relationship between FTO and HOXB13 was verified via RT-qPCR, methylated RNA immunoprecipitation sequencing (MeRIP-seq), and double luciferase reporter gene assay. The effects of HOXB13 and FTO on proliferation, invasion, and migration of GC cells were studied using EdU and Transwell assays. KEY FINDINGS HOXB13 and FTO expression was abnormally high in GC tissues and cell lines, with no significant correlation between HOXB13 and FTO expression and the prognosis of GC patients. Inhibiting FTO expression in GC cells decreased HOXB13 methylation and upregulated HOXB13 expression. Inhibiting HOXB13 and FTO expression suppressed GC cell proliferation, migration, and invasion. Decreased HOXB13 expression suppressed PI3K/AKT/mTOR signaling pathway activity, while atypical HOXB13 expression promoted it. A probable downstream target of HOXB13 was insulin-like growth factor 1 receptor (IGF-1R); a decrease in IGF-1R relieved GC cell migration, invasion, and proliferation and inhibited PI3K/AKT/mTOR signaling pathway activity promoted by atypical HOXB13 expression. SIGNIFICANCE HOXB13 and FTO expression is elevated in GC. FTO suppresses HOXB13 methylation; FTO and HOXB13 expression promotes GC cell proliferation, migration, and invasion. HOXB13 expression intensifies GC invasion through PI3K/AKT/mTOR signaling via IGF-1R. HOXB13 and associated signaling pathways can be effective targets for GC therapy.
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Affiliation(s)
- Chengming Guo
- Department of Gastroenterology, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China
| | - Hongjin Chu
- Central Laboratory, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China
| | - Zhaohua Gong
- Department of Integrated Chinese and Western Medicine, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China
| | - Bo Zhang
- Department of Gastroenterology, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China
| | - Chen Li
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China
| | - Jian Chen
- Department of Oncology, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China.
| | - Liuye Huang
- Department of Gastroenterology, Yantai Yuhuangding Hospital, Yantai, Shandong, People's Republic of China.
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Du H, Bao Y, Liu C, Zhong A, Niu Y, Tang X. miR‑139‑5p enhances cisplatin sensitivity in non‑small cell lung cancer cells by inhibiting cell proliferation and promoting apoptosis via the targeting of Homeobox protein Hox‑B2. Mol Med Rep 2021; 23:104. [PMID: 33300085 PMCID: PMC7723155 DOI: 10.3892/mmr.2020.11743] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 08/14/2020] [Indexed: 02/07/2023] Open
Abstract
The development of chemotherapeutic dug resistance hinders the clinical treatment of cancer. MicroRNAs (miRNAs/miRs) have been revealed to serve essential roles in the drug resistance of numerous types of cancer. miR‑139‑5p was previously reported to be associated with cisplatin (DDP) sensitivity in human nasopharyngeal carcinoma cells and colorectal cancer cells. However, the effect and underlying mechanism of miR‑139‑5p in DDP sensitivity in non‑small cell lung cancer (NSCLC) cells has not yet been fully elucidated. In the present study, the expression of miR‑139‑5p and Homeobox protein Hox‑B2 (HOXB2) in NSCLC tissues was examined by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and western blotting. Subsequently, the effect of miR‑139‑5p on the DDP sensitivity of NSCLC cells in vitro was investigated. Cell proliferation was examined using a Cell Counting Kit‑8 assay. Western blotting was used to evaluate the protein expression of HOXB2, phosphorylated (p)‑PI3K, p‑AKT, caspase‑3 and cleaved‑caspase‑3, and RT‑qPCR was used to evaluate the expression of miR‑139‑5p, and the mRNA expression levels of HOXB2, PI3K, AKT and caspase‑3. The apoptotic rate of the cells was detected using flow cytometry. miR‑139‑5p expression in NSCLC tissues was shown to be significantly lower compared with that in adjacent tissues. Additionally, miR‑139‑5p increased cell apoptosis and inhibited NSCLC cell proliferation induced by DDP in vitro via modulating the PI3K/AKT/caspase‑3 signaling pathway. Furthermore, HOXB2 was identified to be a target of miR‑139‑5p, and miR‑139‑5p was revealed to sensitize NSCLC cells to DDP via the targeting of HOXB2. Taken together, the results of the present study demonstrated that regulating the expression of miR‑139‑5p could provide a novel approach to reverse DDP resistance and increase chemosensitivity in the treatment of NSCLC.
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Affiliation(s)
- Hailian Du
- Department of Respiratory Medicine, Weifang Yidu Central Hospital, Weifang, Shandong 262500, P.R. China
| | - Ya'nan Bao
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650000, P.R. China
| | - Chunying Liu
- Ultrasonic Department, Anqiu People's Hospital, Anqiu, Shandong 262100, P.R. China
| | - Anqiao Zhong
- Department of Respiratory Medicine, Weifang Yidu Central Hospital, Weifang, Shandong 262500, P.R. China
| | - Yikai Niu
- Department of Respiratory Medicine, Weifang Yidu Central Hospital, Weifang, Shandong 262500, P.R. China
| | - Xingping Tang
- Department of Respiratory Medicine, Weifang Yidu Central Hospital, Weifang, Shandong 262500, P.R. China
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Bi Y, Mao Y, Su Z, Du J, Ye L, Xu F. HOXB-AS1 accelerates the tumorigenesis of glioblastoma via modulation of HOBX2 and HOBX3 at transcriptional and posttranscriptional levels. J Cell Physiol 2020; 236:93-106. [PMID: 33459377 DOI: 10.1002/jcp.29499] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/09/2020] [Indexed: 12/30/2022]
Abstract
Glioblastoma (GBM) is the most universal and invasive brain tumor among adults. Increasing studies have reported that long noncoding RNAs play vital roles in regulating downstream molecules at the transcriptional or posttranscriptional level in tumor progression. The purpose of the current research was to inquire the modulation mechanism by which homeobox B cluster antisense RNA 1 (HOXB-AS1) functioned in GBM. Our study first discovered the lifted expression of HOXB-AS1 and its nearby genes HOXB2 and HOXB3 in GBM and the positive relationship between HOXB-AS1 and HOXB2 or HOXB3. Loss-of-function assays and in vivo study detected that silencing of HOXB-AS1, HOXB2, or HOXB3 restrained the proliferation and induced the apoptosis in GBM. In addition, mechanism experiments demonstrated that HOXB-AS1 recruited interleukin enhancer-binding factor 3 (ILF3) to regulate HOXB2 and HOXB3 expression at the transcriptional level, and HOXB-AS1 sponged miR-186-5p to modulate HOXB2 and HOXB3 expression at posttranscriptional level. Finally, the regulatory mechanism of HOXB-AS1 in GBM was certified through rescue experiments. Our results indicated that HOXB-AS1 boost the HOXB2 or HOXB3 expression at the transcriptional and posttranscriptional levels. We detected the HOXB-AS1-ILF3-HOXB2/HOXB3 axis and HOXB-AS1-miR-186-5p-HOXB2/HOXB3 axis driving the GBM progression, which might generate more effective diagnostic biomarkers and therapeutic targets for patients with GBM.
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Affiliation(s)
- Yongyan Bi
- Department of Neurosurgery, Minhang Hospital, Fudan University, Minhang, Shanghai, China
| | - Yuhang Mao
- Department of Neurosurgery, Minhang Hospital, Fudan University, Minhang, Shanghai, China
| | - Zuopeng Su
- Department of Neurosurgery, Minhang Hospital, Fudan University, Minhang, Shanghai, China
| | - Jiarui Du
- Department of Neurosurgery, Minhang Hospital, Fudan University, Minhang, Shanghai, China
| | - Liping Ye
- Department of Nursing, Minhang Hospital, Fudan University, Minhang, Shanghai, China
| | - Fulin Xu
- Department of Neurosurgery, Minhang Hospital, Fudan University, Minhang, Shanghai, China
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Zhang Z, Liang X, Ren L, Zhang S, Li S, Wan T, Xu D, Lv S. LINC00662 promotes cell viability and metastasis in esophageal squamous cell carcinoma by sponging miR-340-5p and upregulating HOXB2. Thorac Cancer 2020; 11:2306-2315. [PMID: 32633082 PMCID: PMC7396358 DOI: 10.1111/1759-7714.13551] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/02/2020] [Accepted: 06/05/2020] [Indexed: 12/15/2022] Open
Abstract
Background Previous studies have shown that lncRNA LINC00662 plays an important role in pathogenesis of malignancies. The purpose of this study was to elucidate the regulatory mechanism of LINC00662 in esophageal squamous cell carcinoma (ESCC). Methods In this study, the regulatory mechanism of LINC00662 was investigated by RT‐qPCR. MTT, transwell and dual luciferase reporter assays. Results Upregulation of LINC00662 was found in ESCC and associated with worse clinical outcomes in ESCC patients. More importantly, knockdown of LINC00662 restrained cell proliferation, migration and invasion in ESCC. In addition, LINC00662 acts as a molecular sponge for miR‐340‐5p in ESCC, and miR‐340‐5p directly targets HOXB2. HOXB2 expression can be positively regulated by LINC00662 in ESCC. Furthermore, HOXB2 downregulation or miR‐340‐5p overexpression weakened the carcinogenesis of LINC00662 in ESCC. Conclusions LncRNA LINC00662 promotes the progression of ESCC by upregulating HOXB2 by sponging miR‐340‐5p.
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Affiliation(s)
- Zhimei Zhang
- Phase I Clinical Research Center, The Affiliated Hospital of Kangda College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China.,Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University /The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Xuyang Liang
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University /The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China.,Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Ling Ren
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University /The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China.,Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Shuxian Zhang
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University /The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China.,Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Shouying Li
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University /The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China.,Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Tongxun Wan
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Dazhou Xu
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Shengxiang Lv
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University /The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China.,Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
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11
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Cai S, Yu X, Gu Z, Yang Q, Wen B, Sheng J, Guan R. A 10-gene prognostic methylation signature for stage I-III cervical cancer. Arch Gynecol Obstet 2020; 301:1275-1287. [PMID: 32274635 DOI: 10.1007/s00404-020-05524-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/28/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE Cervical cancer (CC) patients usually have poor prognosis. The present study aims to find a DNA methylation signature for predicting survival of CC patients. METHODS We selected CC patients at pathological stage I-III with corresponding information on radiotherapy and overall survival (OS) from TCGA. Differential expression and methylation analysis was done between patients with and without radiotherapy. We selected feature genes using recursive feature elimination algorithm to build a support vector machine classifier. DNA methylation biomarkers predictive of prognosis were identified using a LASSO Cox-Proportional Hazards model to construct a prognostic scoring model. The classifier and the prognostic model were tested on the training set and the validation set. Nomogram combining risk score and prognostic clinical factors were used. RESULTS We obtained 497 differentially expressed genes (DEGs) and 865 differentially methylated genes (DMGs). Fifteen feature genes were selected from the 292 common genes between the DEGs and the DMGs to construct a classification model for radiotherapy. A DNA methylation signature including 10 genes was identified and used to establish a prognostic scoring model. The 10-gene methylation signature could effectively separate patients into two risk groups with markedly different OS time. Predictive capability of the methylation signature was successfully confirmed on the validation set. A nomogram comprised of risk score, radiotherapy, and recurrence was applied, with calibration plots displaying good concordance between predicted and actual OS. The DEGs were involved in 12 KEGG pathways most of which were correlated with metastasis and proliferation of various cancers, such as pathways in cancer, basal cell carcinoma, transcriptional misregulation in cancer and ECM-receptor interaction. CONCLUSION We Identified a 10-gene methylation signature for risk stratification of CC patients at pathological stages I-III, and ten methylation biomarkers might be novel therapeutic targets for CC.
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Affiliation(s)
- Shengyun Cai
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China
| | - Xiaomin Yu
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China
| | - Zhongyi Gu
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China
| | - Qingqing Yang
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China
| | - Biwei Wen
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China
| | - Jizi Sheng
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China
| | - Rui Guan
- Department of Obstetrics and Gynecology, Changhai Hospital, Second Military Medical University, NO.168, Changhai Road, Shanghai, 200433, People's Republic of China.
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12
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Li H, Zhu G, Xing Y, Zhu Y, Piao D. miR-4324 functions as a tumor suppressor in colorectal cancer by targeting HOXB2. J Int Med Res 2019; 48:300060519883731. [PMID: 31852342 PMCID: PMC7607221 DOI: 10.1177/0300060519883731] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Objective MicroRNAs (miRNAs) are reported to have crucial roles in human cancers; however, their
role in colorectal cancer (CRC) remains largely unknown. Methods In this study, we analyzed the expression of miR-4324 in CRC cell lines using reverse
transcription-quantitative polymerase chain reaction (RT-qPCR). We also examined
miR-4324 expression in CRC tumor tissues using a miRNA expression dataset obtained from
the Gene Expression Omnibus. We validated the connection between miR-4324 and homeobox
B2 (HOXB2) using a luciferase activity reporter assay and western blotting. The effects
of miR-4324 and HOXB2 on CRC cell malignant behaviors in vitro were
further investigated. Results miR-4324 expression was significantly decreased in both CRC tumor tissues and cell
lines. Overexpression of miR-4324 suppressed CRC cell proliferation, migration, and
invasion. In contrast, overexpression of HOXB2 promoted CRC malignant cell behaviors.
Furthermore, we validated HOXB2 as a direct target of miR-4324. Conclusions miR-4324 expression was decreased in CRC. miR-4324 regulates CRC cell proliferation,
migration, and invasion by targeting HOXB2.
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Affiliation(s)
- Hailin Li
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Guiling Zhu
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Yanwei Xing
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Yuekun Zhu
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Daxun Piao
- Department of Colorectal Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
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Identification of important invasion and proliferation related genes in adrenocortical carcinoma. Med Oncol 2019; 36:73. [DOI: 10.1007/s12032-019-1296-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 07/01/2019] [Indexed: 12/17/2022]
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14
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Li S, Pei Y, Wang W, Liu F, Zheng K, Zhang X. Circular RNA 0001785 regulates the pathogenesis of osteosarcoma as a ceRNA by sponging miR-1200 to upregulate HOXB2. Cell Cycle 2019; 18:1281-1291. [PMID: 31116090 DOI: 10.1080/15384101.2019.1618127] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Circular RNAs (circRNAs) are recently emerged to be promising therapeutic targets of tumors. Osteosarcoma is the most prevalent primary bone tumor and the third most prevalent cancer in children and adolescents. This study firstly analyzed circRNA microarray of osteosarcoma and selected circ-0001785 as the study object. We aimed to comprehensively investigate the expression pattern and biological function of circ-0001785 in the progression of osteosarcoma. Relative levels of circ-0001785 and miR-1200 in the normal human osteoblast cell line and osteosarcoma cell lines were determined. Bioinformatics analyses predicted the binding relationship between miR-1200 to HOXB2 and circ-0001785, while dual-luciferase reporter gene assay further verified this relationship. Flow cytometry and EdU assay were used for evaluating the regulatory effects of circ-0001785/miR-1200/HOXB2 axis on osteosarcoma cells. Consistent with the microarray analysis, circ-0001785 was highly expressed in osteosarcoma cell lines. Knockdown of circ-0001785 attenuated proliferative ability, but induced the apoptosis of osteosarcoma cells. Furthermore, we confirmed that circ-0001785 competitively bound to miR-1200, thus up-regulating its target gene HOXB2. Western blot analyses revealed that circ-0001785 regulated the PI3K/Akt signaling and Bcl-2 family pathway in osteosarcoma. In conclusion, circ-0001785 regulates the pathogenesis of osteosarcoma by sponging miR-1200 to up-regulate HOXB2 expression.
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Affiliation(s)
- Shenglong Li
- a Department of Bone and Soft Tissue Tumor Surgery , Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute , Shenyang , Liaoning Province , China
| | - Yi Pei
- a Department of Bone and Soft Tissue Tumor Surgery , Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute , Shenyang , Liaoning Province , China
| | - Wei Wang
- a Department of Bone and Soft Tissue Tumor Surgery , Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute , Shenyang , Liaoning Province , China
| | - Fei Liu
- a Department of Bone and Soft Tissue Tumor Surgery , Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute , Shenyang , Liaoning Province , China
| | - Ke Zheng
- a Department of Bone and Soft Tissue Tumor Surgery , Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute , Shenyang , Liaoning Province , China
| | - Xiaojing Zhang
- a Department of Bone and Soft Tissue Tumor Surgery , Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute , Shenyang , Liaoning Province , China
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Expression signatures of HOX cluster genes in cervical cancer pathogenesis: Impact of human papillomavirus type 16 oncoprotein E7. Oncotarget 2018; 8:36591-36602. [PMID: 28402266 PMCID: PMC5482679 DOI: 10.18632/oncotarget.16619] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/14/2017] [Indexed: 12/11/2022] Open
Abstract
The Homeobox (HOX) genes encode important transcription factors showing deregulated expression in several cancers. However, their role in cervical cancer pathogenesis, remains largely unexplored. Herein, we studied their association with Human Papillomavirus type 16 (HPV16) mediated cervical cancers. Our previously published gene expression microarray data revealed a significant alteration of 12 out of 39 HOX cluster members among cervical cancer cases, in comparison to the histopathologically normal controls. Of these, we validated seven (HOXA10, HOXA13, HOXB13, HOXC8, HOXC9, HOXC11 and HOXD10) by quantitative real-time PCR. We identified decreased HOXA10 expression as opposed to the increased expression of the rest. Such decrease was independent of the integration status of HPV16 genome, but correlated negatively with E7 expression in clinical samples, that was confirmed in vitro. HOXA10 and HOXB13 revealed association with Epithelial-Mesenchymal Transition (EMT). While HOXA10 expression correlated positively with E-Cadherin and negatively with Vimentin expression, HOXB13 showed the reverse trend. Chromatin immunoprecipitation study in vitro revealed the ability of E7 to increase HOX gene expression by epigenetic regulation, affecting the H3K4me3 and H3K27me3 status of their promoters, resulting from a loss of PRC2-LSD1 complex activity. Thus, besides identifying the deregulated expression of HOX cluster members in HPV16 positive cervical cancer and their association with EMT, our study highlighted the mechanism of HPV16 E7-mediated epigenetic regulation of HOX genes in such cancers, potentially serving as bedrock for functional studies in the future.
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Wang L, Sun H, Wang X, Hou N, Zhao L, Tong D, He K, Yang Y, Song T, Yang J, Huang C. EGR1 mediates miR-203a suppress the hepatocellular carcinoma cells progression by targeting HOXD3 through EGFR signaling pathway. Oncotarget 2018; 7:45302-45316. [PMID: 27244890 PMCID: PMC5216724 DOI: 10.18632/oncotarget.9605] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 04/26/2016] [Indexed: 12/21/2022] Open
Abstract
EGR1 plays a critical role in cancer progression. However, its precise role in hepatocellular carcinoma has not been elucidated. In this study, we found that the overexpression of EGR1 suppresses hepatocellular carcinoma cell proliferation and increases cell apoptosis by binding to the miR-203a promoter sequence. In addition, we investigated the function of miR-203a on progression of HCC cells. We verified that the effect of overexpression of miR-203a is consistent with that of EGR1 in regulation of cell progression. Through bioinformatic analysis and luciferase assays, we confirmed that miR-203a targets HOXD3. Silencing HOXD3 could block transition of the G2/M phase, increase cell apoptosis, decrease the expression of cell cycle and apoptosis-related proteins, EGFR, p-AKT, p-ERK, CCNB1, CDK1 and Bcl2 by targeting EGFR through EGFR/AKT and ERK cell signaling pathways. Likewise, restoration of HOXD3 counteracted the effects of miR-203a expression.In conclusion, our findings are the first to demonstrate that EGR1 is a key player in the transcriptional control of miR-203a, and that miR-203a acts as an anti-oncogene to suppress HCC tumorigenesis by targeting HOXD3 through EGFR-related cell signaling pathways.
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Affiliation(s)
- Lumin Wang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Hongfei Sun
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Xiaofei Wang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Ni Hou
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Lingyu Zhao
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Dongdong Tong
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Kang He
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Yang Yang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Tusheng Song
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
| | - Jun Yang
- Department of Pathology, Second Affiliated Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, P.R. China
| | - Chen Huang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China.,Cardiovascular Research Center, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, P.R. China
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Alvarado-Ruiz L, Martinez-Silva MG, Torres-Reyes LA, Pina-Sanchez P, Ortiz-Lazareno P, Bravo-Cuellar A, Aguilar-Lemarroy A, Jave-Suarez LF. HOXA9 is Underexpressed in Cervical Cancer Cells and its Restoration Decreases Proliferation, Migration and Expression of Epithelial-to-Mesenchymal Transition Genes. Asian Pac J Cancer Prev 2016; 17:1037-47. [DOI: 10.7314/apjcp.2016.17.3.1037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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18
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Yu JQ, Zhou Q, Zheng YF, Bao Y. Expression of Vimentin and Ki-67 Proteins in Cervical Squamous Cell Carcinoma and their Relationships with Clinicopathological Features. Asian Pac J Cancer Prev 2016; 16:4271-5. [PMID: 26028085 DOI: 10.7314/apjcp.2015.16.10.4271] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES To investigate the expression of vimentin and Ki-67 proteins in cervical squamous cell carcinoma (CSCC) and their relationships with patient clinicopathological features. MATERIALS AND METHODS Fifty-seven CSCC samples archived in Department of Pathology in the First Affiliated Hospital of Wenzhou Medical University were selected. The expression of vimentin and Ki-67 proteins in CSCC tissue were detected using immunohistochemical SP method, and correlations between them and their relationships with clinicopathological features were analyzed. RESULTS Among 57 CSCC tissues, there were 43 with positive expression of Vimentin, and the positive rate was 75.4%; there were 57 cases with positive expression of Ki-67, and the positive rate came up to 100.0%. The results of Pearson correlation analysis displayed that the expression of vimentin had a significantly-positive correlation with Ki-67 in CSCC tissue (r=0.984, co0.000). The expression of both Ki-67 and vimentin was intimately associated with the presence or absence of local invasion and lymph node metastasis as well as differentiated degrees of the tumor (P=0.003, 0.017, 0.000; P=0.001, 0.008, 0.003) instead of the age, tumor size and clinical staging (P>0.05). CONCLUSIONS Epithelial-mesenchymal transition (EMT) tends to appear in poorly-differentiated CSCC tissue, and the up-regulation of vimentin expression is accompanied by high expression of Ki-67, suggesting that invasion and metastasis readily occur in these tumor cells.
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Affiliation(s)
- Jian-Qin Yu
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China E-mail :
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Kurmyshkina OV, Kovchur PI, Volkova TO. 'Drawing' a Molecular Portrait of CIN and Cervical Cancer: a Review of Genome-Wide Molecular Profiling Data. Asian Pac J Cancer Prev 2015; 16:4477-87. [DOI: 10.7314/apjcp.2015.16.11.4477] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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