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Zhao A, Pan Y, Gao Y, Zhi Z, Lu H, Dong B, Zhang X, Wu M, Zhu F, Zhou S, Ma S. MUC1 promotes cervical squamous cell carcinoma through ERK phosphorylation-mediated regulation of ITGA2/ITGA3. BMC Cancer 2024; 24:559. [PMID: 38702644 PMCID: PMC11069143 DOI: 10.1186/s12885-024-12314-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 04/26/2024] [Indexed: 05/06/2024] Open
Abstract
In contrast to the decreasing trends in developed countries, the incidence and mortality rates of cervical squamous cell carcinoma in China have increased significantly. The screening and identification of reliable biomarkers and candidate drug targets for cervical squamous cell carcinoma are urgently needed to improve the survival rate and quality of life of patients. In this study, we demonstrated that the expression of MUC1 was greater in neoplastic tissues than in non-neoplastic tissues of the cervix, and cervical squamous cell carcinoma patients with high MUC1 expression had significantly worse overall survival than did those with low MUC1 expression, indicating its potential for early diagnosis of cervical squamous cell carcinoma. Next, we explored the regulatory mechanism of MUC1 in cervical squamous cell carcinoma. MUC1 could upregulate ITGA2 and ITGA3 expression via ERK phosphorylation, promoting the proliferation and metastasis of cervical cancer cells. Further knockdown of ITGA2 and ITGA3 significantly inhibited the tumorigenesis of cervical cancer cells. Moreover, we designed a combination drug regimen comprising MUC1-siRNA and a novel ERK inhibitor in vivo and found that the combination of these drugs achieved better results in animals with xenografts than did MUC1 alone. Overall, we discovered a novel regulatory pathway, MUC1/ERK/ITGA2/3, in cervical squamous cell carcinoma that may serve as a potential biomarker and therapeutic target in the future.
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Affiliation(s)
- Aiqin Zhao
- Department of Obstetrics and Gynecology, The People's Hospital of Suzhou New District, Suzhou, 215129, China
| | - Yunzhi Pan
- Department of Pharmacy, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, 215131, China
| | - Yingyin Gao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
- Key Laboratory of New Drug Delivery Systems of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, China
| | - Zheng Zhi
- Department of Pathology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215002, China
| | - Haiying Lu
- Department of Obstetrics and Gynecology, The People's Hospital of Suzhou New District, Suzhou, 215129, China
| | - Bei Dong
- Department of Obstetrics and Gynecology, The People's Hospital of Suzhou New District, Suzhou, 215129, China
| | - Xuan Zhang
- Department of Obstetrics and Gynecology, The People's Hospital of Suzhou New District, Suzhou, 215129, China
| | - Meiying Wu
- Department of Tuberculosis, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, 215131, China
| | - Fenxia Zhu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
- Key Laboratory of New Drug Delivery Systems of Chinese Materia Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, China
| | - Sufang Zhou
- Department of Obstetrics and Gynecology, The People's Hospital of Suzhou New District, Suzhou, 215129, China.
| | - Sai Ma
- Department of Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215002, China.
- Gusu School, Nanjing Medical University, Suzhou, 215008, China.
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Liu D, Tian H, Li H, Nie J, Han Z, Tang G, Gao P, Cheng H, Dai X. Radiotherapy Resistance of 3D Bioprinted Glioma via ITGA2/p-AKT Signaling Pathway. Adv Healthc Mater 2024; 13:e2303394. [PMID: 38288911 DOI: 10.1002/adhm.202303394] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/19/2024] [Indexed: 02/13/2024]
Abstract
Due to the inherent radiation tolerance, patients who suffered from glioma frequently encounter tumor recurrence and malignant progression within the radiation target area, ultimately succumbing to treatment ineffectiveness. The precise mechanism underlying radiation tolerance remains elusive due to the dearth of in vitro models and the limitations associated with animal models. Therefore, a bioprinted glioma model is engineered, characterized the phenotypic traits in vitro, and the radiation tolerance compared to 2D ones when subjected to X-ray radiation is assessed. By comparing the differential gene expression profiles between the 2D and 3D glioma model, identify functional genes, and analyze distinctions in gene expression patterns. Results showed that 3D glioma models exhibited substantial alterations in the expression of genes associated with the stromal microenvironment, notably a significant increase in the radiation tolerance gene ITGA2 (integrin subunit A2). In 3D glioma models, the knockdown of ITGA2 via shRNA resulted in reduced radiation tolerance in glioma cells and concomitant inhibition of the p-AKT pathway. Overall, 3D bioprinted glioma model faithfully recapitulates the in vivo tumor microenvironment (TME) and exhibits enhanced resistance to radiation, mediated through the ITGA2/p-AKT pathway. This model represents a superior in vitro platform for investigating glioma radiotherapy tolerance.
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Affiliation(s)
- Dongdong Liu
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Haotian Tian
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Huaixu Li
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Jianyu Nie
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Zhenyu Han
- Department of Medical Imaging Technology, the First Clinical College of Anhui Medical University, Hefei, Anhui, 230032, China
| | - Guozhang Tang
- Department of Clinical Medicine, the Second Clinical College of Anhui Medical University, Hefei, Anhui, 230032, China
| | - Peng Gao
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Hongwei Cheng
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
| | - Xingliang Dai
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230001, China
- Department of Research & Development, East China Institute of Digital Medical Engineering, Shangrao, Jiangxi, 334000, China
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Chun JM, Kim JS, Kim C. Integrated Analysis of DNA Methylation and Gene Expression Profiles in a Rat Model of Osteoarthritis. Int J Mol Sci 2024; 25:594. [PMID: 38203768 PMCID: PMC10778961 DOI: 10.3390/ijms25010594] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Osteoarthritis (OA) is common and affected by several factors, such as age, weight, sex, and genetics. The pathogenesis of OA remains unclear. Therefore, using a rat model of monosodium iodoacetate (MIA)-induced OA, we examined genomic-wide DNA methylation using methyl-seq and characterized the transcriptome using RNA-seq in the articular cartilage tissue from a negative control (NC) and MIA-induced rats. We identified 170 genes (100 hypomethylated and upregulated genes and 70 hypermethylated and downregulated genes) regulated by DNA methylation in OA. DNA methylation-regulated genes were enriched in functions related to focal adhesion, extracellular matrix (ECM)-receptor interaction and the PI3K-Akt and Hippo signaling pathways. Functions related to extracellular matrix organization, extracellular matrix proteoglycans, and collagen formation were involved in OA. A molecular and protein-protein network was constructed using methylated expression-correlated genes. Erk1/2 was a downstream target of OA-induced changes in DNA methylation and RNA expression. We found that the integrin subunit alpha 2 (ITGA2) gene is important in focal adhesion, alpha6-beta4 integrin signaling, and the inflammatory response pathway in OA. Overall, gene expression changes because DNA methylation influences OA pathogenesis. ITGA2, whose gene expression changes are regulated by DNA methylation during OA onset, is a candidate gene. Our findings provide insights into the epigenetic targets of OA processes in rats.
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Affiliation(s)
- Jin Mi Chun
- Digital Health Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Republic of Korea;
| | - Joong-Sun Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Chul Kim
- KM Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
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Jing H, Meng M, Ye M, Liu S, Cao X, Li K, Liu Y, Zhang J, Wu Y. Integrin α2 promotes immune escape in non-small-cell lung cancer by enhancing PD-L1 expression in exosomes to inhibit CD8 + T-cell activity. J Investig Med 2024; 72:57-66. [PMID: 37804164 DOI: 10.1177/10815589231207801] [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] [Indexed: 10/09/2023]
Abstract
This study intended to delineate the mechanism and functional role of integrin α2 (ITGA2) in non-small-cell lung cancer (NSCLC) cell immune escape. Bioinformatics analysis was utilized to analyze ITGA2 expression in NSCLC tissues, and correlations between ITGA2 expression and patient survival time, ITGA2 expression and programmed cell death ligand 1 (PD-L1; CD274) expression, and ITGA2 expression and CD8+ T-cell infiltration. Quantitative real-time polymerase chain reaction detected ITGA2 expression. Transmission electron microscopy was applied to examine the morphology of exosomes, and western blot measured CD9, CD63, and PD-L1 levels. CCK-8 measured cell viability. Cell toxicity experiment measured the killing effect of CD8+ T cells on cancer cells. Enzyme-linked immunosorbent assay assessed secretion levels of interleukin-2, interferon-gamma, tumor necrosis factor-alpha, and PD-L1 expression in exosomes. Immunohistochemistry detected ITGA2, CD8, and PD-L1 expression in patient tissue samples. ITGA2 was highly expressed in NSCLC, and Pearson correlation analysis showed a negative correlation of ITGA2 with CD8+ T-cell infiltration and a positive correlation of ITGA2 with PD-L1 expression. Cell experiments showed that silencing ITGA2 hindered NSCLC cell progression and increased levels of CD8+ T-cell secretory factors. Further mechanism studies found that ITGA2 reduced CD8+ T-cell-mediated antitumor immunity via the increase in PD-L1 expression. Clinical sample testing unveiled that ITGA2 was upregulated in NSCLC tissues. PD-L1 upregulation was seen in exosomes separated from patient blood, and correlation analysis showed a positive correlation of exosomal PD-L1 expression in blood with ITGA2 expression in tissues. This study displays a novel mechanism and role of ITGA2 in NSCLC immune escape, providing directions for the clinical therapy of NSCLC patients.
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Affiliation(s)
- Hui Jing
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
- Department of Respiratory and Critical Care Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou, China
| | - Meng Meng
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
| | - Mengjie Ye
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
- Graduate School of Bengbu Medical College, Bengbu, China
| | - Shuan Liu
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
- Graduate School of Bengbu Medical College, Bengbu, China
| | - Xubo Cao
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
| | - Ke Li
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
| | - Yuanyuan Liu
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
| | - Jinghao Zhang
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
| | - Yanmin Wu
- Department of Respiratory and Critical Care Medicine, Xuzhou Hospital Affiliated to Xuzhou Medical University, Xuzhou Central Hospital, Xuzhou, China
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Jin L, Duan Y, Li X, Li Z, Hu J, Shi H, Su Z, Li Z, Du B, Chen Y, Tan Y. High expression ITGA2 affects the expression of MET, PD-L1, CD4 and CD8 with the immune microenvironment in pancreatic cancer patients. Front Immunol 2023; 14:1209367. [PMID: 37881431 PMCID: PMC10594995 DOI: 10.3389/fimmu.2023.1209367] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/22/2023] [Indexed: 10/27/2023] Open
Abstract
Purpose Pancreatic cancer is characterized by a grim prognosis and is regarded as one of the most formidable malignancies. Among the genes exhibiting high expression in different tumor tissues, ITGA2 stands out as a promising candidate for cancer therapy. The promotion of cancer in pancreatic cancer is not effective. The objective of this study is to assess the presence of ITGA2, EMT and PD-L1 in pancreatic cancer. Experimental design We examined the expression of ITGA2, MET, E-cadherin, PD-L1, CD4, and CD8 proteins in 62 pancreatic cancer tissue samples using multi-tissue immunofluorescence and immunohistochemistry techniques. Functional assays, such as the cell migration assay and transwell assay, were used to determine the biological role of ITGA2 in pancreatic cancer. The relationship of ITGA2,EMT and PD-L1 were examined using Western blot analysis and RT-qPCR assay. Results In our study, we observed the expression of ITGA2, E-cadherin, and PD-L1 in both tumor and stroma tissues of pancreatic cancer. Additionally, a positive correlation between ITGA2, E-cadherin, and PD-L1 in the tumor region (r=0.559, P<0.001 and r=0.511, P<0.001), and PD-L1 in the stroma region (r=0.512, P<0.001).The expression levels of ITGA2, CD4, and CD8 were found to be higher in pancreatic cancer tissues compared to adjacent tissues (P < 0.05). Additionally, ITGA2 was negatively correlated with CD4 and CD8 (r = -0.344, P < 0.005 and r = -0.398, P < 0.005).Furthermore, ITGA2, CD4, and CD8 were found to be correlated with the survival time of patients (P < 0.05). Blocking ITGA2 inhibited the proliferation and invasion ability of pancreatic cancer cells significantly, Additionally, sh-ITGA2 can down-regulate the expression of EMT and PD-L1. Conclusions We identified a novel mechanism in which ITGA2 plays a crucial role in the regulation of pancreatic cancer growth and invasion. This mechanism involves the upregulation of MET and PD-L1 expression in pancreatic cancer cells. Additionally, we found that increased expression of ITGA2 is associated with a poor prognosis in pancreatic cancer patients. Furthermore, ITGA2 also affects immune regulation in these patients. Therefore, targeting ITGA2 is an effective method to enhance the efficacy of checkpoint immunotherapy and prohibiting tumor growth against pancreatic cancer.
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Affiliation(s)
- Liquan Jin
- 1St Department of General Surgery, The First Affiliated Hospital of Dali University, Dali, Yunnan, China
| | - Yaoqiang Duan
- Clinical Medical College of Dali University, Dali, Yunnan, China
| | - Xiaoxi Li
- Clinical Medical College of Dali University, Dali, Yunnan, China
| | - Zhenqi Li
- Clinical Medical College of Dali University, Dali, Yunnan, China
| | - Jifu Hu
- Clinical Medical College of Dali University, Dali, Yunnan, China
| | - Hongbo Shi
- 1St Department of General Surgery, The First Affiliated Hospital of Dali University, Dali, Yunnan, China
| | - Ziting Su
- 1St Department of General Surgery, The First Affiliated Hospital of Dali University, Dali, Yunnan, China
| | - Zhe Li
- Clinical Medical College of Dali University, Dali, Yunnan, China
| | - Bilian Du
- Clinical Medical College of Dali University, Dali, Yunnan, China
| | - Yiming Chen
- 1St Department of General Surgery, The First Affiliated Hospital of Dali University, Dali, Yunnan, China
| | - Yunbo Tan
- 1St Department of General Surgery, The First Affiliated Hospital of Dali University, Dali, Yunnan, China
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Chen Y, Jin L, Ma Y, Liu Y, Zhu Q, Huang Y, Feng W. BACH1 promotes lung adenocarcinoma cell metastasis through transcriptional activation of ITGA2. Cancer Sci 2023; 114:3568-3582. [PMID: 37311571 PMCID: PMC10475762 DOI: 10.1111/cas.15884] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/24/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023] Open
Abstract
BACH1 plays an important role in promoting cancer. This study aims to further verify the relationship between the expression level of BACH1 in lung adenocarcinoma prognosis, as well as the influence of BACH1 expression on lung adenocarcinoma and the potential mechanism. The expression level of BACH1 in lung adenocarcinoma and its relationship with prognosis was evaluated by lung adenocarcinoma tissue microarray analysis combined with bioinformatics approaches. Gene knockdown and overexpression were used to investigate the functions and molecular mechanisms of BACH1 in lung adenocarcinoma cells. The regulatory downstream pathways and target genes of BACH1 in lung adenocarcinoma cells were explored by bioinformatics and RNA sequencing data analysis, real-time PCR, western blot analysis, and cell immunofluorescence and cell adhesion assays. Chromatin immunoprecipitation and dual-luciferase reporter assays were carried out to verify the target gene binding site. In the present study, BACH1 is abnormally highly expressed in lung adenocarcinoma tissues, and high BACH1 expression is negatively correlated with patient prognosis. BACH1 promotes the migration and invasion of lung adenocarcinoma cells. Mechanistically, BACH1 directly binds to the upstream sequence of the ITGA2 promoter to promote ITGA2 expression, and the BACH1-ITGA2 axis is involved in cytoskeletal regulation in lung adenocarcinoma cells by activating the FAK-RAC1-PAK signaling pathway. Our results indicated that BACH1 positively regulates the expression of ITGA2 through a transcriptional mechanism, thereby activating the FAK-RAC1-PAK signaling pathway to participate in the formation of the cytoskeleton in tumor cells and then promoting the migration and invasion of tumor cells.
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Affiliation(s)
- Yingji Chen
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Longyu Jin
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Yuchao Ma
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Yicai Liu
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Qianjun Zhu
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Yu Huang
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Wei Feng
- Department of Cardiothoracic SurgeryThird Xiangya Hospital of Central South UniversityChangshaChina
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Wang D, Cui SP, Chen Q, Ren ZY, Lyu SC, Zhao X, Lang R. The coagulation-related genes for prognosis and tumor microenvironment in pancreatic ductal adenocarcinoma. BMC Cancer 2023; 23:601. [PMID: 37386391 DOI: 10.1186/s12885-023-11032-9] [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: 01/25/2023] [Accepted: 05/31/2023] [Indexed: 07/01/2023] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is a malignancy characterized by challenging early diagnosis and poor prognosis. It is believed that coagulation has an impact on the tumor microenvironment of PDAC. The aim of this study is to further distinguish coagulation-related genes and investigate immune infiltration in PDAC. METHODS We gathered two subtypes of coagulation-related genes from the KEGG database, and acquired transcriptome sequencing data and clinical information on PDAC from The Cancer Genome Atlas (TCGA) database. Using an unsupervised clustering method, we categorized patients into distinct clusters. We investigated the mutation frequency to explore genomic features and performed enrichment analysis, utilizing Gene Ontology (GO) and Kyoto Encyclopedia of Genes (KEGG) to explore pathways. CIBERSORT was used to analyze the relationship between tumor immune infiltration and the two clusters. A prognostic model was created for risk stratification, and a nomogram was established to assist in determining the risk score. The response to immunotherapy was assessed using the IMvigor210 cohort. Finally, PDAC patients were recruited, and experimental samples were collected to validate the infiltration of neutrophils using immunohistochemistry. In addition, and identify the ITGA2 expression and function were identified by analyzing single cell sequencing data. RESULTS Two coagulation-related clusters were established based on the coagulation pathways present in PDAC patients. Functional enrichment analysis revealed different pathways in the two clusters. Approximately 49.4% of PDAC patients experienced DNA mutation in coagulation-related genes. Patients in the two clusters displayed significant differences in terms of immune cell infiltration, immune checkpoint, tumor microenvironment and TMB. We developed a 4-gene prognostic stratified model through LASSO analysis. Based on the risk score, the nomogram can accurately predict the prognosis in PDAC patients. We identified ITGA2 as a hub gene, which linked to poor overall survival (OS) and short disease-free survival (DFS). Single-cell sequencing analysis demonstrated that ITGA2 was expressed by ductal cells in PDAC. CONCLUSIONS Our study demonstrated the correlation between coagulation-related genes and the tumor immune microenvironment. The stratified model can predict the prognosis and calculate the benefits of drug therapy, thus providing the recommendations for clinical personalized treatment.
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Affiliation(s)
- Di Wang
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Song-Ping Cui
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Qing Chen
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Zhang-Yong Ren
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Shao-Cheng Lyu
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Xin Zhao
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Ren Lang
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang District, Beijing, 100020, People's Republic of China.
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Cho SK, Lee K, Woo JH, Choi JH. Macrophages Promote Ovarian Cancer-Mesothelial Cell Adhesion by Upregulation of ITGA2 and VEGFC in Mesothelial Cells. Cells 2023; 12:384. [PMID: 36766725 PMCID: PMC9913165 DOI: 10.3390/cells12030384] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Ovarian cancer is a metastatic disease that frequently exhibits extensive peritoneal dissemination. Recent studies have revealed that noncancerous cells inside the tumor microenvironment, such as macrophages and mesothelial cells, may play a role in ovarian cancer metastasis. In this study, we found that human ovarian cancer cells (A2780 and SKOV3) adhered more to human mesothelial Met5A cells stimulated by macrophages (M-Met5A) in comparison to unstimulated control Met5A cells. The mRNA sequencing revealed that 94 adhesion-related genes, including FMN1, ITGA2, COL13A1, VEGFC, and NRG1, were markedly upregulated in M-Met5A cells. Knockdown of ITGA2 and VEGFC in M-Met5A cells significantly inhibited the adhesion of ovarian cancer cells. Inhibition of the JNK and Akt signaling pathways suppressed ITGA2 and VEGFC expression in M-Met5A cells as well as ovarian cancer-mesothelial cell adhesion. Furthermore, increased production of CC chemokine ligand 2 (CCL2) and CCL5 by macrophages elevated ovarian cancer-mesothelial cell adhesion. These findings imply that macrophages may play a significant role in ovarian cancer-mesothelial cell adhesion by inducing the mesothelial expression of adhesion-related genes via the JNK and Akt pathways.
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Affiliation(s)
- Seung-Kye Cho
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Kijun Lee
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
- Division of Molecular Biology, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jeong-Hwa Woo
- Division of Molecular Biology, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jung-Hye Choi
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
- Division of Molecular Biology, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
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Zhang L, Hu S, Cao C, Chen C, Liu J, Wang Y, Liu J, Zhao J, Tao C, Wang Y. Functional and Genetic Characterization of Porcine Beige Adipocytes. Cells 2022; 11:751. [PMID: 35203402 DOI: 10.3390/cells11040751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/14/2021] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023] Open
Abstract
Beige adipocytes are a distinct type of fat cells with a thermogenic activity that have gained substantial attention as an alternative cellular anti-obesity target in humans. These cells may provide an alternative strategy for the genetic selection of pigs with reduced fat deposition. Despite the presence of beige adipocytes in piglets, the molecular signatures of porcine beige adipocytes remain unclear. Here, white and beige adipocytes from Tibetan piglets were primarily cultured and differentiated. Compared to the white adipocytes, the beige adipocytes exhibited a stronger thermogenic capacity. RNA-sequencing-based genome-wide comparative analyses revealed distinct gene expression profiles for white and beige adipocytes. In addition, two genes, integrin alpha-2 (ITGA2) and calponin 1 (CNN1), which were specifically differentially expressed in porcine beige adipocytes, were further functionally characterized using a loss-of-function approach. Our data showed that both genes were involved in differentiation and thermogenesis of porcine beige adipocytes. Collectively, these data furthered our understanding of gene expression in porcine white and beige adipocytes. Elucidating the genetic basis of beige adipogenesis in pigs will pave the way for molecular design breeding in both pigs and large animal models of human diseases.
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Huang G, Yang Y, Lv M, Huang T, Zhan X, Kang W, Hou J. VPS9D1-AS1, a novel long-non-coding RNA, acts as a tumor promoter by regulating the miR-324-5p/ ITGA2 axis in colon adenocarcinoma. Am J Transl Res 2022; 14:955-966. [PMID: 35273698 PMCID: PMC8902554] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Colon adenocarcinoma (COAD) is among the most common malignancies worldwide. Elucidating the function and mechanism of action of the lncRNA VPS9D1-AS1 in COAD will be of great value for identifying potential therapeutic targets. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) analysis was used to measure the expression levels of lncRNA VPS9D1-AS1 in COAD tissues and cell lines. After knocking down the expression of VPS9D1-AS1 in two COAD cell lines, namely SW1116 and LoVo, their proliferation rate was measured by the 5-ethynyl-2'-deoxyuridine (Edu) incorporation and cell counting kit-8 (CCK-8) viability assays, migration and invasion abilities were assessed by wound healing and Transwell assays, and apoptosis rate was measured withflow cytometry. Additionally, the dual luciferase reporter assay system was used to investigate the targeting of miR-324-5p to VPS9D1-AS1 and ITGA2 3'-UTR. The inhibitory effects of the miR-324-5p/ITGA2 axis on the function of VPS9D1-AS1 were also examined. In vivo tumorigenesis assay was performed in nude mice injected with VPS9D1-AS1 shRNA or control shRNA lentivirus-transfected LoVo cells. RESULTS VPS9D1-AS1 was found to be upregulated in COAD tissues and cell lines. VPS9D1-AS1 knockdown inhibited the COAD cell proliferation, migration and invasion and increased the apoptosis rate. In addition, we have demonstrated that miR-324-5p targets VPS9D1-AS1 and ITGA2 3'-UTR, and miR-324-5p silencing or forced ITGA2 expression attenuated the effect of VPS9D1-AS1 knockdown. CONCLUSION This study identified a novel competing endogenous RNA (ceRNA) pathway that potentially associates with the oncogenic functions of VPS9D1-AS1, miR-324-5p, and ITGA2 in COAD, which could contribute to the identification of new therapeutic approaches targeting COAD.
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Affiliation(s)
- Guohong Huang
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
| | - Yimei Yang
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
| | - Mengxin Lv
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
| | - Tian Huang
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
| | - Xiaoyan Zhan
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
| | - Wei Kang
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
| | - Jianghou Hou
- Clinical Research Center of Kunming Maternal and Child Health Hospital Kunming 650031, Yunnan, China
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Zhuang W, Niu T, Li Z. MicroRNA miR-145-5p regulates cell proliferation and cell migration in colon cancer by inhibiting chemokine (C-X-C motif) ligand 1 and integrin α2. Bioengineered 2021; 12:9909-9917. [PMID: 34860147 PMCID: PMC8810145 DOI: 10.1080/21655979.2021.2000243] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Colon cancer (CC), which has high morbidity and mortality, can be regulated by microRNAs. This study aimed to investigate the regulatory function of microRNA miR-145-5p in CC cells. Bioinformatics analysis was used to screen key genes in CC. The expression of miR-145-5p, chemokine (C-X-C motif) ligand 1 (CXCL1), and integrin α2 (ITGA2) in CC was confirmed by quantitative reverse transcription polymerase chain reaction and western blotting. After cell transfection, changes in proliferation and migration in CC cells were detected using the cell counting kit-8 (CCK-8), colony formation assay, and wound healing assay. A luciferase assay was conducted to confirm the interactome of miR-145-5p, CXCL1, and ITGA2 in CC cells. Bioinformatics analysis confirmed that CXCL1 and ITGA2 were key genes in CC. After performing several cell functional experiments, the results confirmed that upregulation of miR-145-5p attenuated proliferation and migration of CC cells. Luciferase assay and western blotting confirmed that CXCL1 and ITGA2 were targets of miR-145-5p, and their expression in CC could be suppressed by miR-145-5p. In conclusion, miR-145-5p is a tumor suppressor in CC and can inhibit the expression of CXCL1 and ITGA2.
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Affiliation(s)
- Wei Zhuang
- Department of Gastroenterology, People's Hospital of Dongxihu District, Wuhan, Hubei, China
| | - Tao Niu
- Department of Gastroenterology, People's Hospital of Dongxihu District, Wuhan, Hubei, China
| | - Zhen Li
- Department of Gastroenterology, People's Hospital of Dongxihu District, Wuhan, Hubei, China
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He P, Wang BH, Cao RR, Zhu DC, Ge B, Zhou X, Wu LF, Lei SF, Deng FY. ITGA2 protein is associated with rheumatoid arthritis in Chinese and affects cellular function of T cells. Clin Chim Acta 2021; 523:208-15. [PMID: 34599900 DOI: 10.1016/j.cca.2021.09.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND We identified proteins significant for rheumatoid arthritis (RA) in peripheral blood mononuclear cells (PBMCs), and to clarify mechanisms mediated by underlying proteins that may involve in the pathogenesis of RA. METHODS Proteome-wide protein expressions were profiled by employing label-free quantitative proteomics methodology (Easy-nLC1000 and Q-exactive). The t-test was applied to identify differentially expressed proteins (DEP, p ≤ 0.05) between RA case and control samples. Gene Ontology enrichment analyses and Protein-Protein Interaction analyses were performed to annotate functions of DEPs. The selected DEP was validated in independent samples using Simple Western assay. Plasma protein level of α2 component of integrin (ITGA2) was measured by using ELISA. The DEP, ITGA2, was assessed for its effects on T cell proliferation, cell cycle, apoptosis, and inflammatory cytokine expression. RESULTS Sixty-four DEPs (p < 0.05) were identified in PBMCs. The selected ITGA2 (Fold Change, FC = 2.20, p = 1.49E-02) was validated to be up-regulated (FC = 12.33, p = 4.90E-2) with RA, and plasma ITGA2 protein level significantly elevated in RA patients vs. controls. Over-expression of ITGA2 could promote proliferation and inhibit apoptosis of Jurkat T cell, and induce IL-8, IFN-γ and TNF-α expression in Jurkat T cells. CONCLUSIONS ITGA2 protein was significantly over-expressed in PBMCs in RA patients, and affects T cell growth and pro-inflammatory cytokine expression in T cells.
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Dai R, Jiang Q, Zhou Y, Lin R, Lin H, Zhang Y, Zhang J, Gao X. Lnc-STYK1-2 regulates bladder cancer cell proliferation, migration, and invasion by targeting miR-146b-5p expression and AKT/STAT3/NF-kB signaling. Cancer Cell Int 2021; 21:408. [PMID: 34332611 PMCID: PMC8325849 DOI: 10.1186/s12935-021-02114-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 04/29/2021] [Accepted: 07/24/2021] [Indexed: 02/07/2023] Open
Abstract
Background Epigenetic modulation by noncoding RNAs substantially contributes to human cancer development, but noncoding RNAs involvement in bladder cancer remains poorly understood. This study investigated the role of long noncoding RNA (lncRNA) lnc-STYK1-2 in tumorigenesis in cancerous bladder cells. Methods Differential lncRNA and mRNA profiles were characterized by high-throughput RNA sequencing combined with validation via quantitative PCR. Bladder cancer cell proliferation was assessed through MTS, and bladder cancer cell migration and invasion were assessed through a Transwell system. The in vivo tumorigenesis of bladder cancer cells was evaluated using the cancer cell line-based xenograft model. The dual-luciferase reporter assay verified the association of miR-146b-5p with lnc-STYK1-2 and the target gene. Protein abundances and phosphorylation were detected by Western blotting. Results Alterations in lncRNA profiles, including decreased lnc-STYK1-2 expression, were detected in bladder cancer tissues compared with adjacent noncancerous tissues. lnc-STYK1-2 silencing effectively promoted proliferation, migration, and invasion in two bladder cancer cell lines, 5637 and T24, and their tumorigenesis in nude mice. lnc-STYK1-2 siRNA promoted miR-146b-5p and reduced ITGA2 expression in bladder cancer cells. Moreover, miR-146b-5p suppressed ITGA2 expression in bladder cancer cells through direct association. Also, lnc-STYK1-2 directly associated with miR-146b-5p. Finally, miR-146b-5p inhibitors abrogated the alterations in bladder cell functions, ITGA2 expression, and phosphorylation of AKT, STAT3, and P65 proteins in 5637 and T24 cells induced by lnc-STYK1-2 silencing. Conclusion lnc-STYK1-2 inhibited bladder cancer cell proliferation, migration, and tumorigenesis by targeting miR-146b-5p to regulate ITGA2 expression and AKT/STAT3/NF-kB signaling.
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Affiliation(s)
- Ranran Dai
- Guangdong Key Laboratory of Urology, Guangzhou Medical University, Guangzhou, China
| | - Qingping Jiang
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - You Zhou
- Guangdong Key Laboratory of Urology, Guangzhou Medical University, Guangzhou, China
| | - Ruifeng Lin
- Guangdong Key Laboratory of Urology, Guangzhou Medical University, Guangzhou, China
| | - Hai Lin
- Guangdong Key Laboratory of Urology, Guangzhou Medical University, Guangzhou, China
| | - Yumin Zhang
- Department of Children's Stomatology, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jinhu Zhang
- Guangdong Key Laboratory of Urology, Guangzhou Medical University, Guangzhou, China
| | - Xingcheng Gao
- Guangdong Key Laboratory of Urology, Guangzhou Medical University, Guangzhou, China. .,Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, 151 Yanjiang road, Yuexiu district, Guangzhou, 510120, China.
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Adorno-Cruz V, Hoffmann AD, Liu X, Dashzeveg NK, Taftaf R, Wray B, Keri RA, Liu H. ITGA2 promotes expression of ACLY and CCND1 in enhancing breast cancer stemness and metastasis. Genes Dis 2021; 8:493-508. [PMID: 34179312 PMCID: PMC8209312 DOI: 10.1016/j.gendis.2020.01.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/22/2020] [Accepted: 01/26/2020] [Indexed: 02/07/2023] Open
Abstract
Cancer metastasis is largely incurable and accounts for 90% of breast cancer deaths, especially for the aggressive basal-like or triple negative breast cancer (TNBC). Combining patient database analyses and functional studies, we examined the association of integrin family members with clinical outcomes as well as their connection with previously identified microRNA regulators of metastasis, such as miR-206 that inhibits stemness and metastasis of TNBC. Here we report that the integrin receptor CD49b-encoding ITGA2, a direct target of miR-206, promotes breast cancer stemness and metastasis. ITGA2 knockdown suppressed self-renewal related mammosphere formation and pluripotency marker expression, inhibited cell cycling, compromised migration and invasion, and therefore decreased lung metastasis of breast cancer. ITGA2 overexpression reversed miR-206-caused cell cycle arrest in G1. RNA sequencing analyses revealed that ITGA2 knockdown inhibits genes related to cell cycle regulation and lipid metabolism, including CCND1 and ACLY as representative targets, respectively. Knockdown of CCND1 or ACLY inhibits mammosphere formation of breast cancer cells. Overexpression of CCND1 rescues the phenotype of ITGA2 knockdown-induced cell cycle arrest. ACLY-encoded ATP citrate lyase is essential to maintain cellular acetyl-CoA levels. CCND1 knockdown further mimics ITGA2 knockdown in abolishing lung colonization of breast cancer cells. We identified that the low levels of miR-206 as well as high expression levels of ITGA2, ACLY and CCND1 are associated with an unfavorable relapse-free survival of the patients with estrogen receptor-negative or high grade breast cancer, especially basal-like or TNBC, possibly serving as potential biomarkers of cancer stemness and therapeutic targets of breast cancer metastasis.
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Affiliation(s)
- Valery Adorno-Cruz
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 11318, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Andrew D. Hoffmann
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Xia Liu
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- University of Kentucky, College of Medicine, Lexington, KY 40536, USA
| | - Nurmaa K. Dashzeveg
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Rokana Taftaf
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Brian Wray
- Bioinformatic Core, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Ruth A. Keri
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 11318, USA
- Department of Genetics and Genome Sciences, The Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, OH 11318, USA
| | - Huiping Liu
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Medicine, The Division of Hematology and Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pathology and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 11318, USA
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Huang W, Zhu J, Shi H, Wu Q, Zhang C. ITGA2 Overexpression Promotes Esophageal Squamous Cell Carcinoma Aggression via FAK/AKT Signaling Pathway. Onco Targets Ther 2021; 14:3583-3596. [PMID: 34113124 PMCID: PMC8185252 DOI: 10.2147/ott.s302028] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 01/26/2021] [Accepted: 05/10/2021] [Indexed: 12/13/2022] Open
Abstract
Background Integrin alpha 2 (ITGA2) is highly expressed in various cancers. ITGA2 up regulation promotes tumor proliferation, invasion, migration, and angiogenesis and ITGA2 is a poor prognostic factor in many tumors. However, the mechanism underlying its role in esophageal squamous cell carcinoma (ESCC) is unknown. Methods The expression profile of ITGA2 in ESCC was analyzed using the Gene expression profiling interactive analysis (GEPIA). ESCC tissues were analyzed by real time PCR (RT-qPCR) and immunohistochemistry to verify ITGA2 expression. The impact of ITGA2 on the clinicopathological characteristics was explored using a chi-square test. Apoptosis, Transwell, colony formation, and wound healing assays were conducted to characterize the roles of ITGA2 in ESCC. Its impact on tumorigenesis was further examined using a tumor xenograft model. The expression of proteins associated with the epithelial-mesenchymal Transition (EMT) and focal adhesion kinase (FAK)/AKT pathway and regulated by ITGA2 was evaluated with Western blot analysis. The Akt inhibitor MK-2206 was used to explore the interaction of ITGA2 with the FAK/Akt pathway. Results ITGA2 was upregulated in ESCC tissues and related to lymph node metastasis as well as TNM stage. In vitro experimental models revealed that ITGA2 promotes proliferation, invasion, and migration, and inhibits apoptosis. In vivo experiments show that ITGA2 promotes ESCC proliferation. Additionally, Western blot analysis revealed that ITGA2 silencing inhibits FAK/AKT signaling and suppresses EMT, while its overexpression activates FAK/AKT signaling and promotes EMT. Moreover, treatment with the AKT inhibitor MK-2206 successfully repressed the progression of ESCC caused by ITGA2 overexpression. Conclusion Our findings indicated that in ESCC, ITGA2 promotes proliferation, invasion and migration, while inhibiting apoptosis and promoting EMT in ESCC, possibly via FAK/AKT phosphorylation. These findings highlight the therapeutic value of ITGA2 in ESCC.
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Affiliation(s)
- Wei Huang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.,Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Ju Zhu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Haoming Shi
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Qingchen Wu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Cheng Zhang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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Peng Y, Dong S, Yang Z, Song Y, Ding J, Hou D, Wang L, Zhang Z, Li N, Wang H. Identification of docetaxel-related biomarkers for prostate cancer. Andrologia 2021; 53:e14079. [PMID: 34021502 DOI: 10.1111/and.14079] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/05/2021] [Accepted: 04/08/2021] [Indexed: 12/19/2022] Open
Abstract
Prostate cancer (PCa) which was the second commonly diagnosed malignancy, contributed to the top fifth carcinoma death in men. Nevertheless, the main chemotherapeutic agent docetaxel came to failure due to chemoresistance. Recently, increasing evidence suggested the importance of tumour microenvironment (TME) in PCa. The present study aimed to explore the specific TME in PCa and find biomarkers related to both immune infiltration and docetaxel. The docetaxel-specific genes and differential expression genes comparing PCa with normal control samples were derived using DESeq2 and zinbwave with GSE140440, TCGA and GTEx datasets. Immune-infiltration-related genes were identified using CIBERSORT and co-expression network analysis. Key genes related to both docetaxel and immune infiltrating in PCa, including nine genes, namely ZNF486, IFI6, TMOD2, HSPA4L, ITPR1, LRRC37A7P, APOC1, APOBEC3G, and ITGA2, were determined by overlapping above three gene sets. ITGA2 was then defined as the hub gene for its significant prognostic implications. Further validations conducted on Oncomine, GEO, TISIDB, MSigDB, and The Human Protein Atlas confirmed the docetaxel-specific and immune infiltrating characteristics of ITGA2. To sum up, our findings could provide a better understanding of immune infiltrating and docetaxel-resistance in PCa, mostly, ITGA2 could serve as potential prognosis biomarkers and targets for the combination of docetaxel.
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Affiliation(s)
- Yun Peng
- Tianjin Institute of Urology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Shiqiang Dong
- Tianjin Institute of Urology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Zhikai Yang
- Tianjin Institute of Urology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Yuxuan Song
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jin Ding
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Dingkun Hou
- Tianjin Institute of Urology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Lili Wang
- Department of Oncology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Zheyu Zhang
- Tianjin Institute of Urology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Nan Li
- Tianjin Institute of Urology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - Haitao Wang
- Department of Oncology, The 2nd Hospital of Tianjin Medical University, Tianjin, China
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Yuan J, Jiang Z, Li M, Li W, Gu X, Wang Z, Pi L, Xu Y, Zhou H, Zhang B, Deng Q, Wang Y, Huang P, Zhang L, Gu X. Integrin α2 gene polymorphism is a risk factor of coronary artery lesions in Chinese children with Kawasaki disease. Pediatr Rheumatol Online J 2021; 19:12. [PMID: 33557870 PMCID: PMC7869497 DOI: 10.1186/s12969-021-00494-5] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 01/11/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Kawasaki disease (KD) is a systemic vasculitis, and the formation of coronary artery lesions(CAL) is its most common sequela. Both genetic and environmental factors are considered to be important factors of in KD. Integrin α2 (ITGA2) is a transmembrane receptor that is associated with susceptibility to several diseases, but its relevance to KD with CAL is unclear. METHODS We genotyped ITGA2 rs1126643 in 785 KD patients with the CAL and no-CAL(NCAL) (300 patients with CAL, and 485 age- and sex-matched patients with NCAL). OR (95% CI) and adjusted OR (95% CI) were used to evaluate the intensity of the association. RESULTS We found a significantly increased risk of KD with CAL associated with ITGA2 rs1126643 genotypes (CT vs CC: adjusted OR = 1.57, 95% CI = 1.16-2.12, P = 0.0032; CT/TT vs CC: adjusted OR = 1.49, 95% CI = 1.12-2.00, P = 0.0068; T vs C: adjusted OR = 1.66, 95% CI = 1.16-2.51, P = 0.0165). Moreover, we found that carriers of the CT/TT genotype had a significant risk of KD with coronary artery lesion susceptibility for children ≤60 months of age, and the CT/TT genotype was significantly associated with an increased risk of SCAL formation and MCAL formation when compared with the CC genotype. CONCLUSION ITGA2 rs1126643 was associated with increased susceptibility and severity of CAL in KD.
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Affiliation(s)
- Jia Yuan
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Zhiyong Jiang
- grid.410737.60000 0000 8653 1072Department of Blood Transfusion and Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Meiai Li
- grid.410737.60000 0000 8653 1072Department of Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Wei Li
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Xueping Gu
- grid.410737.60000 0000 8653 1072Department of Blood Transfusion and Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Zhouping Wang
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Lei Pi
- grid.410737.60000 0000 8653 1072Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Yufen Xu
- grid.410737.60000 0000 8653 1072Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Huazhong Zhou
- grid.410737.60000 0000 8653 1072Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Baidu Zhang
- grid.410737.60000 0000 8653 1072Department of Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Qiulian Deng
- grid.410737.60000 0000 8653 1072Department of Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Yanfei Wang
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Ping Huang
- grid.410737.60000 0000 8653 1072Department of Cardiology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, 510623 Guangdong China
| | - Li Zhang
- Department of Cardiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China.
| | - Xiaoqiong Gu
- Department of Blood Transfusion , Clinical Biological Resource Bank and Clinical Lab, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, Guangdong, China.
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Gaballa R, Ali HEA, Mahmoud MO, Rhim JS, Ali HI, Salem HF, Saleem M, Kandeil MA, Ambs S, Abd Elmageed ZY. Exosomes-Mediated Transfer of Itga2 Promotes Migration and Invasion of Prostate Cancer Cells by Inducing Epithelial-Mesenchymal Transition. Cancers (Basel) 2020; 12:E2300. [PMID: 32824235 DOI: 10.3390/cancers12082300] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 12/19/2022] Open
Abstract
Although integrin alpha 2 subunit (ITGA2) mediates cancer progression and metastasis, its transfer by exosomes has not been investigated in prostate cancer (PCa). We aimed to determine the role of exosomal ITGA2 derived from castration-resistant PCa (CRPC) cells in promoting aggressive phenotypes in androgen receptor (AR)-positive cells. Exosomes were co-incubated with recipient cells and tested for different cellular assays. ITGA2 was enriched in exosomes derived from CRPC cells. Co-culture of AR-positive cells with CRPC-derived exosomes increased their proliferation, migration, and invasion by promoting epithelial-mesenchymal transition, which was reversed via ITGA2 knockdown or inhibition of exosomal uptake by methyl-β-cyclodextrin (MβCD). Ectopic expression of ITGA2 reproduced the effect of exosomal ITGA2 in PCa cells. ITGA2 transferred by exosomes exerted its effect within a shorter time compared to that triggered by its endogenous expression. The difference of ITGA2 protein expression in localized tumors and those with lymph node metastatic tissues was indistinguishable. Nevertheless, its abundance was higher in circulating exosomes collected from PCa patients when compared with normal subjects. Our findings indicate the possible role of the exosomal-ITGA2 transfer in altering the phenotype of AR-positive cells towards more aggressive phenotype. Thus, interfering with exosomal cargo transfer may inhibit the development of aggressive phenotype in PCa cells.
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Min J, Han TS, Sohn Y, Shimizu T, Choi B, Bae SW, Hur K, Kong SH, Suh YS, Lee HJ, Kim JS, Min JK, Kim WH, Kim VN, Choi E, Goldenring JR, Yang HK. microRNA-30a arbitrates intestinal-type early gastric carcinogenesis by directly targeting ITGA2. Gastric Cancer 2020; 23:600-613. [PMID: 32112274 PMCID: PMC7306433 DOI: 10.1007/s10120-020-01052-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 02/12/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Spasmolytic polypeptide-expressing metaplasia (SPEM) is considered a precursor lesion of intestinal metaplasia and intestinal-type gastric cancer (GC), but little is known about microRNA alterations during metaplasia and GC developments. Here, we investigate miR-30a expression in gastric lesions and identify its novel target gene which is associated with the intestinal-type GC. METHODS We conducted in situ hybridization and qRT-PCR to determine miR-30a expression in gastric tissues. miR-30a functions were determined through induction or inhibition of miR-30a in GC cell lines. A gene microarray was utilized to confirm miR-30a target genes in GC, and siRNA-mediated target gene suppression and immunostaining were performed. The Cancer Genome Atlas data were utilized to validate gene expressions. RESULTS We found down-regulation of miR-30a during chief cell transdifferentiation into SPEM. MiR-30a level was also reduced in the early stage of GC, and its level was maintained in advanced GC. We identified a novel target gene of miR-30a and ITGA2, and our results showed that either ectopic expression of miR-30a or ITGA2 knockdown suppressed GC cell proliferation, migration, and tumorigenesis. Levels of ITGA2 inversely correlated with levels of miR-30a in human intestinal-type GC. CONCLUSION We found down-regulation of miR-30a in preneoplastic lesions and its tumor-suppressive functions by targeting ITGA2 in GC. The level of ITGA2, which functions as an oncogene, was up-regulated in human GC. The results of this study suggest that coordination of the miR-30a-ITGA2 axis may serve as an important mechanism in the development of gastric precancerous lesions and intestinal-type GC.
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Affiliation(s)
- Jimin Min
- Cancer Research Institute, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-gu, Seoul, 03080, South Korea
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
- Epithelial Biology Center, Vanderbilt University Medical Center, Vanderbilt University School of Medicine, MRB IV 10435F, 2213 Garland Avenue, Nashville, TN, 37232, USA
| | - Tae-Su Han
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Yoojin Sohn
- Epithelial Biology Center, Vanderbilt University Medical Center, Vanderbilt University School of Medicine, MRB IV 10435F, 2213 Garland Avenue, Nashville, TN, 37232, USA
- Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Takahiro Shimizu
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
- Epithelial Biology Center, Vanderbilt University Medical Center, Vanderbilt University School of Medicine, MRB IV 10435F, 2213 Garland Avenue, Nashville, TN, 37232, USA
- Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Boram Choi
- Cancer Research Institute, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-gu, Seoul, 03080, South Korea
| | - Seong-Woo Bae
- Cancer Research Institute, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-gu, Seoul, 03080, South Korea
| | - Keun Hur
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Yun-Suhk Suh
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyuk-Joon Lee
- Cancer Research Institute, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-gu, Seoul, 03080, South Korea
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Jang-Seong Kim
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Jeong-Ki Min
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Woo-Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea
| | - V Narry Kim
- School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Eunyoung Choi
- Nashville VA Medical Center, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Epithelial Biology Center, Vanderbilt University Medical Center, Vanderbilt University School of Medicine, MRB IV 10435F, 2213 Garland Avenue, Nashville, TN, 37232, USA.
| | - James R Goldenring
- Nashville VA Medical Center, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA.
- Epithelial Biology Center, Vanderbilt University Medical Center, Vanderbilt University School of Medicine, MRB IV 10435F, 2213 Garland Avenue, Nashville, TN, 37232, USA.
- Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.
| | - Han-Kwang Yang
- Cancer Research Institute, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-gu, Seoul, 03080, South Korea.
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea.
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20
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Wang L, Gao Y, Zhao X, Guo C, Wang X, Yang Y, Han C, Zhao L, Qin Y, Liu L, Huang C, Wang W. HOXD3 was negatively regulated by YY1 recruiting HDAC1 to suppress progression of hepatocellular carcinoma cells via ITGA2 pathway. Cell Prolif 2020; 53:e12835. [PMID: 32557953 PMCID: PMC7445403 DOI: 10.1111/cpr.12835] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 03/26/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022] Open
Abstract
Objectives HOXD3 is associated with progression of multiple types of cancer. This study aimed to identify the association of YY1 with HOXD3‐ITGA2 axis in the progression of hepatocellular carcinoma. Materials and Methods Bioinformatics assay was used to identify the effect of YY1, HOXD3 and ITGA2 expression in HCC tissues. The function of YY1 and HOXD3 in HCCs was determined by qRT‐PCR, MTT, apoptosis, Western blotting, colony formation, immunohistochemistry, and wound‐healing and transwell invasion assays. The relationship between YY1 and HOXD3 or HOXD3 and ITGA2 was explored by RNA‐Seq, ChIP‐PCR, dual luciferase reports and Pearson's assays. The interactions between YY1 and HDAC1 were determined by immunofluorescence microscopy and Co‐IP. Results Herein, we showed that the expression of YY1, HOXD3 and ITGA2 associated with the histologic and pathologic stages of HCC. Moreover, YY1, recruiting HDAC1, can directly target HOXD3 to regulate progression of HCCs. The relationship between YY1 and HOXD3 was unknown until uncovered by our present investigation. Furthermore, HOXD3 bound to promoter region of ITGA2 and up‐regulated the expression, thus activating the ERK1/2 signalling and inducing HCCs proliferation, metastasis and migration in the vitro and vivo. Conclusions Therefore, HOXD3, a target of YY1, facilitates HCC progression via activation of the ERK1/2 signalling by promoting ITGA2. This finding provides a new whole way to HCC therapy by serving YY1‐HOXD3‐ITGA2 regulatory axis as a potential therapeutic target for HCC therapy.
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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, China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yi Gao
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Yan'an Key Laboratory of Chronic Disease Prevention and Research, Yan'an, China
| | - Xiaoge Zhao
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Chen Guo
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xiaofei Wang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yang Yang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Cong Han
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Lingyu Zhao
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yannan Qin
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Liying Liu
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Chen Huang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Institute of Genetics and Developmental Biology, School of Basic Medical Sciences, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Cardiovascular Research Center, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Wenjing Wang
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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21
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Wang S, Liu X, Khan AA, Li H, Tahir M, Yan X, Wang J, Huang H. miR-216a-mediated upregulation of TSPAN1 contributes to pancreatic cancer progression via transcriptional regulation of ITGA2. Am J Cancer Res 2020; 10:1115-1129. [PMID: 32368389 PMCID: PMC7191091] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 03/05/2020] [Indexed: 06/11/2023] Open
Abstract
Pancreatic cancer (PC) is recognized as the most aggressive and deadliest malignancy because it has the highest mortality of all cancers in humans. Mutations in multiple tumor suppressors and oncogenes have been documented to be involved in pancreatic cancer progression and metastasis. The upregulation of tetraspanin 1 (TSPAN1), a transmembrane protein, has been reportedly observed in many human cancers. However, the role of TSPAN1 and its underlying molecular mechanisms in PC progression have not been fully elucidated. In this study, we validated the oncogenic role of TSPAN1 in PC, showing that TSPAN1 reinforces cell proliferation, migration, invasion and tumorigenesis. To investigate the upregulation of TSPAN1 in PC, we showed that miR-216a is the upstream negative regulator of TSPAN1 via direct binding to the TSPAN1 3'-untranslated region. Through RNA-Seq analysis, we for the first time revealed that TSPAN1 expression transcriptionally regulates ITGA2, which is involved in the actin cytoskeleton pathway. The stimulated cell proliferation and invasion initiated by TSPAN1 overexpression could be abolished by knockdown of ITGA2 in PC cells. Furthermore, TSPAN1 epigenetically regulates the expression of ITGA2 by modulating the levels of TET2 DNMT3B and DNMT1, resulting in hypomethylation of the CpG island of the ITGA2 promoter. In conclusion, the newly identified miR-216a/TSPAN1/ITGA2 axis is involved in the modulation of PC progression and represents a novel therapeutic strategy for future pancreatic cancer treatment.
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Affiliation(s)
- Shensen Wang
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Xinhui Liu
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Aamir Ali Khan
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Huan Li
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Muhammad Tahir
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Xinlong Yan
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Juan Wang
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
| | - Hua Huang
- College of Life Science and Bioengineering, Beijing University of Technology Beijing 100124, China
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22
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Chang X, Yang MF, Fan W, Wang LS, Yao J, Li ZS, Li DF. Bioinformatic Analysis Suggests That Three Hub Genes May Be a Vital Prognostic Biomarker in Pancreatic Ductal Adenocarcinoma. J Comput Biol 2020; 27:1595-1609. [PMID: 32216644 DOI: 10.1089/cmb.2019.0367] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignancies worldwide due to its ineffective diagnosis and poor prognosis. It is essential to identify differentially expressed genes (DEGs) in PDAC to gain new insights into its underlying molecular mechanisms, as well as identify potential diagnostic and therapeutic targets. We screened 135 DEGs from the GSE15417, GSE16515, and GSE28735 PDAC and normal pancreatic tissue microarray data sets, and identified 16 DEGs that were correlated with PDAC prognosis through the Kaplan-Meier survival analysis and log-rank tests. The Cancer Genome Atlas and Oncomine databases validated the expression levels of 16 candidate genes (SLC6A14, GPRC5A, IFI27, ERP27, SDR16C5, SIDT2, TCN1, COL12A1, MMP1, CEACAM6, DKK1, ITGA2, KRT19, PLAU, ANO1, and GABRP). Weighted gene coexpression network analysis (WGCNA) and protein and protein interaction (PPI) analysis identified three hub genes-ERP27, ITGA2, and MMP1-that are likely important in PDAC prognosis. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis demonstrated that they were enriched in functions of extracellular matrix organization, extracellular structure organization, and positive regulation of cell migration. Taken together, we identified three pivotal genes for PDAC, which can improve our understanding of its pathogenesis, progression, and prognosis.
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Affiliation(s)
- Xin Chang
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Mei-Feng Yang
- Departments of Hematology, The First Affiliated Hospital of University of South China, University of South China, Hengyang, Hunan, China
| | - Wei Fan
- Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, California
| | - Li-Sheng Wang
- Department of Gastroenterology, The 2nd Clinical Medicine College (Shenzhen People's Hospital) of Jinan University, Shenzhen, China
| | - Jun Yao
- Department of Gastroenterology, The 2nd Clinical Medicine College (Shenzhen People's Hospital) of Jinan University, Shenzhen, China
| | - Zhao-Shen Li
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - De-Feng Li
- Department of Gastroenterology, The 2nd Clinical Medicine College (Shenzhen People's Hospital) of Jinan University, Shenzhen, China.,Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
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23
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Wang Q, Cao T, Guo K, Zhou Y, Liu H, Pan Y, Hou Q, Nie Y, Fan D, Lu Y, Zhao X. Regulation of Integrin Subunit Alpha 2 by miR-135b-5p Modulates Chemoresistance in Gastric Cancer. Front Oncol 2020; 10:308. [PMID: 32232000 PMCID: PMC7082357 DOI: 10.3389/fonc.2020.00308] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/20/2020] [Indexed: 12/24/2022] Open
Abstract
Chemotherapy has substantially improved gastric cancer (GC) patient outcomes in the past decades. However, the development of chemotherapy resistance has become the major cause of treatment failure. Although numerous molecules have been implicated in GC chemoresistance, its pathological mechanisms are still unclear. Here, we found that integrin subunit alpha 2 (ITGA2) is upregulated in chemoresistant GC cells and that increased ITGA2 levels correlated with the poor prognosis of GC patients who received chemotherapy. ITGA2 overexpression led to elevated chemotherapy resistance and drug-induced apoptosis inhibition in GC cells. ITGA2 knockdown resulted in restored chemosensitivity and increased apoptosis in chemoresistant GC cells both in vitro and in vivo. NanoString analysis revealed a unique signature of deregulated pathway expression in GC cells after ITGA2 silencing. The MAPK/ERK pathway and epithelial-mesenchymal transition (EMT) were found to be downregulated after ITGA2 knockdown. miR-135b-5p was identified as a direct upstream regulator of ITGA2. miR-135b-5p overexpression reduced chemoresistance and induced apoptosis in GC cells and attenuated ITGA2-induced chemoresistance and antiapoptotic effects by inhibiting MAPK signaling and EMT. In conclusion, this study underscored the role and mechanism of ITGA2 in GC and suggested the novel miR-135b-5p/ITGA2 axis as an epigenetic cause of chemoresistance with diagnostic and therapeutic implications.
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Affiliation(s)
- Qi Wang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tianyu Cao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kai Guo
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yao Zhou
- Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Hao Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yanan Pan
- College of Life Sciences, Northwest University, Xi'an, China
| | - Qiuqiu Hou
- College of Life Sciences, Northwest University, Xi'an, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Daiming Fan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yuanyuan Lu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaodi Zhao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,National Institute of Biological Sciences, Beijing, China
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24
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Zhang Y, Li J, Zhao Y, Wang C, Zhang L. Identification of rare variants of allergic rhinitis based on whole genome sequencing and gene expression profiling: A preliminary investigation in four families. World Allergy Organ J 2019; 12:100038. [PMID: 31236190 DOI: 10.1016/j.waojou.2019.100038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 04/02/2019] [Accepted: 05/14/2019] [Indexed: 12/13/2022] Open
Abstract
Background Despite the success of genome-wide association studies for allergic rhinitis (AR), no definitive causal variants have been identified, and a substantial portion of the heritability of the disease is yet to be discovered. Methods Four families, each with at least 1 parent and one child suffering from dust mite (DM) AR, were recruited, and whole-genome sequencing was performed on samples from 9 eligible individuals from these families. Conjoint analysis was performed for existing gene expression profiling data in the literature and the whole genome sequencing data obtained for these individuals; for presence of family-specific variants segregating with AR and the pathways involved. Similar analyses were also performed with data obtained for 96 sporadic house dust mite (HDM) AR patients and 96 healthy controls. Results Three rare variants in three genes (FLT1_c.603A > T; VEGFB_c.322A > C; and ITGA2_c.502+1G > A), which are involved in Focal Adhesion pathway, were identified in affected, but not unaffected, subjects in two families. VEGFB_c.322A > C and/or ITGA2_c.502+1G > A were further detected in all DM AR patients but not in any healthy individuals in 1 family; which was further investigated for members. The 3 identified variants were not found in any of the sporadic DM AR patients or healthy controls. Conclusion Despite the relatively small sample size, this study has identified several potentially functional rare variants in AR candidate genes, and it provides a platform for future work in larger numbers of families and sporadic individuals for a better understanding of the genetic basis of AR.
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25
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Kydonopoulou K, Rousso D, Ilonidis G, Mandala E. Association of GPIa C807T polymorphism with unexplained female infertility and IVF implantation failure. J BIOL REG HOMEOS AG 2019; 33:883-887. [PMID: 31184100] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Glycoprotein Ia (GPIa), also known as integrin alpha 2 (ITGA2), together with GPIIa (ITGB1), form the heterodimer integrin α2β1. This complex is a major collagen receptor on the membrane of platelets, which is involved in thrombus formation through platelet adhesion and activation.
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Affiliation(s)
- K Kydonopoulou
- Fourth Department of Internal Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital, Thessaloniki, Greece
| | - D Rousso
- Third Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Hippokration General Hospital, Thessaloniki, Greece
| | - G Ilonidis
- Fourth Department of Internal Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital, Thessaloniki, Greece
| | - E Mandala
- Fourth Department of Internal Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital, Thessaloniki, Greece
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26
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Gong J, Lu X, Xu J, Xiong W, Zhang H, Yu X. Coexpression of UCA1 and ITGA2 in pancreatic cancer cells target the expression of miR-107 through focal adhesion pathway. J Cell Physiol 2018; 234:12884-12896. [PMID: 30569514 DOI: 10.1002/jcp.27953] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [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: 08/10/2018] [Accepted: 11/19/2018] [Indexed: 01/02/2023]
Abstract
OBJECTIVES Abnormal expressions of microRNAs (miRNAs) are demonstrated in pancreatic cancer (PaC), but a major part of the mechanism remains elusive. This study mainly aimed to structure a coexpressed network of long noncoding RNA (lncRNA) and messenger RNA (mRNA) in PaC, as well as to explore their direct targets. METHODS LncRNA and mRNA microarrays were used to determine the expression profiles in PaC cells. Analysis of Kyoto Encyclopedia of Genes and Genomes pathway was performed to identify pathways associated with differentially expressed mRNAs. Coexpression profiles were identified by constructing differentially expressed lncRNA-mRNA regulatory network and further validated by quantitative real-time polymerase chain reaction assay and western blot assay. The bioinformatics computational method was applied to predict the biological target of lncRNA and mRNA, which was identified by luciferase reporter assay. Migration/invasion ability and apoptosis rate of cells were assessed by transwell assay and flow cytometry assay. RESULTS It was identified that the level of urothelial cancer associated 1 (UCA1) was increased in PaC cells, and the inhibition of UCA1 suppressed migration and invasion ability of the cancer cells. The luciferase reporter assay recognized that miR-107 was targeted by UCA1, and integrin subunit α 2 (ITGA2) was further targeted by miR-107. This confirmed the prediction of lncRNA-miRNA-mRNA regulation mechanism. In the regulatory pathways, UCA1 and ITGA2 promoted PaC progression via focal adhesion pathway related proteins such as ITGA3, SRC protooncogene/nonreceptor tyrosine kinase, protein tyrosine kinase 2, and AKT serine/threonine kinase 1. CONCLUSION The study revealed a regulatory network of UCA1-miR-107-ITGA2 and validated UCA1 and ITGA2 as potential prognostic factors for PaC.
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Affiliation(s)
- Jun Gong
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Xiangyu Lu
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Jian Xu
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Wei Xiong
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Hao Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
| | - Xiaojiong Yu
- Department of Hepatobiliary and Pancreatic Surgery, Sichuan Medical Academy & Sichuan People's Hospital, Chengdu, China
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27
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Zhang L, Huang Y, Ling J, Zhuo W, Yu Z, Luo Y, Zhu Y. Is Integrin Subunit Alpha 2 Expression a Prognostic Factor for Liver Carcinoma? A Validation Experiment Based on Bioinformatics Analysis. Pathol Oncol Res 2018; 25:1545-1552. [PMID: 30515639 DOI: 10.1007/s12253-018-0551-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 11/16/2018] [Indexed: 12/29/2022]
Abstract
ITGA2 (Integrin alpha-2) has been detected to be over-expressed in a number of cancers and has been suggested to be involved in cell adhesion and cell-surface mediated signaling. Our previous study using bioinformatic analyses has shown that ITGA2 might be a key gene being involved in the Cadmium-induced malignant transformation of liver cells. In the present study, we firstly aimed to learn the possible functions of ITGA2 via bioinformatics analysis, and then test its expression and clinical significance in liver carcinoma specimens through laboratory experiments. Gene ontology (GO) and pathway enrichment analysis, as well as protein-protein interaction (PPI) analysis has been conducted in Genecards. Then, a tissue microarray containing 90 cases of liver cancer and 90 paired adjacent non-cancerous samples was used for detection of ITGA2 expression by immunohistochemistry assay. Consequently, ITGA2 may be enriched in pathways regarding cell adhesion and migration. PPI analysis suggests that ITGA1, ITGB2, FLT4, LAMB1 and AGRN may have a close relationship with ITGA2. No association between ITGA2 expression and clinical parameters was observed. However, the data showed that ITGA2 might be an independent prognostic factor for liver cancer patients. In conclusion, the data suggest that ITGA2 over-expression might be a potential unfavorable prognostic factor and a potential therapeutic target for liver carcinoma.
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Affiliation(s)
- Liang Zhang
- College of food science and nutritional engineering, China Agricultural University, Beijing, China.,Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yi Huang
- Department of Internal Medicine, Affiliated hospital of Guizhou Medical University, Guiyang, China
| | - JunJun Ling
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Wenlei Zhuo
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Zhen Yu
- College of food science and nutritional engineering, China Agricultural University, Beijing, China
| | - Yunbo Luo
- College of food science and nutritional engineering, China Agricultural University, Beijing, China
| | - Yi Zhu
- College of food science and nutritional engineering, China Agricultural University, Beijing, China.
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Lian XY, Zhang W, Wu DH, Ma JC, Zhou JD, Zhang ZH, Wen XM, Xu ZJ, Lin J, Qian J. Methylation-independent ITGA2 overexpression is associated with poor prognosis in de novo acute myeloid leukemia. J Cell Physiol 2018; 233:9584-9593. [PMID: 30132837 DOI: 10.1002/jcp.26866] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 05/22/2018] [Indexed: 12/13/2022]
Abstract
Previous studies have been indicated that integrin α2 (ITGA2) may be important in cell migration, invasion, survival, and angiogenesis. However, the correlation between ITGA2 expression and acute myeloid leukemia (AML) is still unclear. Real-time quantitative polymerase chain reaction was carried out to analyze ITGA2 messenger RNA level. Methylation-specific polymerase chain reaction (PCR) and bisulfite sequencing PCR were performed to detect the methylation of ITGA2 promoter. ITGA2 expression was significantly upregulated in 134 de novo AML patients compared with 33 controls (p = 0.007). ITGA2high group had markedly lower complete remission (CR) rate than ITGA2low group (p = 0.011). Furthermore, the overall survival in ITGA2high patients was significantly shorter than ITGA2low patients throughout AML cohort, non-acute promyelocytic leukemia (APL) and cytogenetic normal-AML (p = 0.001, 0.002, and 0.044, respectively). Multivariate analysis confirmed that ITGA2 overexpression served as an independent prognostic factor in both whole-cohort AML patients (p = 0.018) and non-APL AML patients (p = 0.021). Besides, ITGA2 expression level was significantly decreased in AML patients after CR (p = 0.011), and was returned at the time of relapse phase (p = 0.021). Moreover, unmethylated ITGA2 promoter was identified in normal controls, leukemia cell lines, and primary leukemia cells with low or high ITGA2 expression. In conclusions, methylation-independent ITGA2 overexpression is associated with poor prognosis in AML.
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Affiliation(s)
- Xin-Yue Lian
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China.,The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China
| | - Wei Zhang
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China.,The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China
| | - De-Hong Wu
- The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China.,Department of Hematology, The Third People's Hospital of Kunshan City, Kunshan, China
| | - Ji-Chun Ma
- The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China.,Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Jing-Dong Zhou
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China.,The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China
| | - Zhi-Hui Zhang
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China.,The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China
| | - Xiang-Mei Wen
- The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China.,Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Zi-Jun Xu
- The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China.,Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Jiang Lin
- The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China.,Laboratory Center, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Jun Qian
- Department of Hematology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China.,The Key Lab of Precision Diagnosis and Treatment of Zhenjiang City, Zhenjiang, China
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Chuang YC, Wu HY, Lin YL, Tzou SC, Chuang CH, Jian TY, Chen PR, Chang YC, Lin CH, Huang TH, Wang CC, Chan YL, Liao KW. Blockade of ITGA2 Induces Apoptosis and Inhibits Cell Migration in Gastric Cancer. Biol Proced Online 2018; 20:10. [PMID: 29743821 PMCID: PMC5928594 DOI: 10.1186/s12575-018-0073-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [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: 01/31/2018] [Accepted: 02/28/2018] [Indexed: 12/19/2022] Open
Abstract
Background Gastric cancer is currently the fourth leading cause of cancer-related death worldwide. Gastric cancer is often diagnosed at advanced stages and the outcome of the treatment is often poor. Therefore, identifying new therapeutic targets for this cancer is urgently needed. Integrin alpha 2 (ITGA2) subunit and the beta 1 subunit form a heterodimer for a transmembrane receptor for extracellular matrix, is an important molecule involved in tumor cell proliferation, survival and migration. Integrin α2β1 is over-expressed on a variety of cancer cells, but is low or absent in most normal organs and resting endothelial cells. Results In this report, we assessed the ITGA2 as the potential therapeutic target with the bioinformatics tools from the TCGA dataset in which composed of 375 gastric cancer tissues and 32 gastric normal tissues. According to the information from the Cancer Cell Line Encyclopedia (CCLE) database, the AGS cell line with ITGA2 high expression and the SUN-1 cell line with low expression were chosen for the further investigation. Interestingly, the anti-ITGA2 antibody (at 3 μg/ml) inhibited approximately 50% survival of the AGS cells (over-expressed ITGA2), but had no effect in SNU-1 cells (ITGA2 negative). The extents of antibody-mediated cancer inhibition positively correlated with the expression levels of the ITGA2. We further showed that the anti-ITGA2 antibody induced apoptosis by up-regulating the RhoA-p38 MAPK signaling to promote the expressions of Bim, Apaf-1 and Caspase-9, whereas the expressions of Ras and Bax/Bcl-2 were not affected. Moreover, blocking ITGA2 by the specific antibody at lower doses also inhibited cell migration of gastric cancer cells. Blockade of ITGA2 by a specific antibody down-regulated the expression of N-WASP, PAK and LIMK to impede actin organization and cell migration of gastric cancer cells. Conclusions Here, we showed that the mRNA expression levels of ITGA2 comparing to normal tissues significantly increased. In addition, the results revealed that targeting integrin alpha 2 subunit by antibodies did not only inhibit cell migration, but also induce apoptosis effect on gastric cancer cells. Interestingly, higher expression level of ITGA2 led to significant effects on apoptosis progression during anti-ITGA2 antibody treatment, which indicated that ITGA2 expression levels directly correlate with their functionality. Our findings suggest that ITGA2 is a potential therapeutic target for gastric cancer.
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Affiliation(s)
- Yu-Chang Chuang
- 1Departmet of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China
| | - Hsin-Yi Wu
- 2Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China
| | - Yu-Ling Lin
- 1Departmet of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China.,3Center for Bioinformatics Research, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
| | - Shey-Cherng Tzou
- 1Departmet of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China.,2Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China
| | - Cheng-Hsun Chuang
- 2Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China
| | - Ting-Yan Jian
- 2Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China
| | - Pin-Rong Chen
- 2Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China
| | - Yuan-Ching Chang
- 4Department of Surgery, Mackay Memorial Hospital, Taipei, Taiwan, Republic of China
| | - Chi-Hsin Lin
- 5Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan, Republic of China
| | - Tse-Hung Huang
- 6Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China.,7School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China.,8School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan, Republic of China
| | - Chao-Ching Wang
- 6Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China
| | - Yi-Lin Chan
- 9Department of Life Science, Chinese Culture University, 55, Hwa-Kang Rd., Yang-Ming-Shan, Taipei, 11114 Taiwan, Republic of China
| | - Kuang-Wen Liao
- 1Departmet of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China.,2Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300 Taiwan, Republic of China.,10College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, Republic of China.,11Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, Republic of China.,12Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan, Republic of China
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Zhao X, Wu Y, Lv Z. miR-128 modulates hepatocellular carcinoma by inhibition of ITGA2 and ITGA5 expression. Am J Transl Res 2015; 7:1564-1573. [PMID: 26550456 PMCID: PMC4626418] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 07/31/2015] [Indexed: 06/05/2023]
Abstract
Dysregulation of miRNAs is a common feature in human cancers, but this phenomenon has not been studied extensively in hepatocellular carcinoma (HCC). miR-128 has been found to be downregulated in cancer. However its role in HCC remains unclear. miR-128 was underexpressed in HCC tissues and cell lines compared with their normal controls. Additionally, ITGA2 and ITGA5 were predicted as the target genes of miR-128. ITGA2 and ITGA5 were inversely correlated with the expression of miR-128 in HCC cells. Importantly, we demonstrate that the overexpression of miR-128 significantly inhibits HCC cell metastasis and stem-cell like properties via ITGA2 and ITGA5. Our results suggest the existence of a novel miR-128-ITGA pathway and indicate that miR-128 acts as a tumor suppressor during hepatocellular carcinogenesis. These results may provide a promising alternative strategy for the therapeutic treatment of HCC.
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Affiliation(s)
- Xiaohua Zhao
- School of Traditional Chinese Medicine, Southern Medical UniversityGuangzhou, China
- Kangwei HospitalXinji, China
| | | | - Zhiping Lv
- School of Traditional Chinese Medicine, Southern Medical UniversityGuangzhou, China
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31
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Abstract
BACKGROUND The role of genetic variants in the pathogenesis of stroke has not been fully elucidated. Several studies have been examined the association of the Integrin alpha2 (ITGA2) gene-C807T (rs1126643) polymorphism with ischemic stroke susceptibility. However, the results of these studies are inconsistent. In order to explore this association more deeply, we performed a meta-analysis. METHODS We collected case-control studies concerning the relationship between the C807T polymorphism and ischemic stroke, and odd ratios (OR) with corresponding 95% confidence intervals (CI) were used to describe the relationships. Inconsistency index (I(2)) and Cochran's Q statistic were used to check heterogeneity. Publication bias was tested by funnel plots and Egger's test. RESULTS Fifteen studies with 2242 cases and 2408 controls were included. Our meta-analysis results indicated an association between the C807T polymorphism and the risk of ischemic stroke in the overall population, Asians and the subgroup of hospital-based people. However, statistically association was not observed for Caucasians and non-hospitalized individuals. CONCLUSIONS The ITGA2 gene C807T polymorphism may be a susceptible predictor of the risk of ischemic stroke. More data are needed to elucidate the relationship further.
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Affiliation(s)
- Guangliang Wu
- 1Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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