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Xue W, Deng L. EP300 improves endothelial injury and mitochondrial dysfunction in coronary artery disease by regulating histone acetylation of SOCS1 promoter via inhibiting JAK/STAT pathway. Cytokine 2024; 176:156507. [PMID: 38244240 DOI: 10.1016/j.cyto.2024.156507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/06/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
Endothelial cell injury and mitochondrial dysfunction are crucial events during coronary artery disease (CAD). Suppressor of cytokine signaling-1 (SOCS1) is a negative mediator for inflammation, but there are few reports regarding histone acetylation of SOCS1 in CAD. The aim of the current study is to examine the impact of SOCS1 in CAD patients and human umbilical vein endothelial cells (HUVECs). We enrolled patients with CAD and healthy volunteers. HUVECs treated with ox-LDL were used as in vitro model. This study showed that SOCS1 expression was decreased in patients with CAD and ox-LDL-stimulated HUVECs. Overexpressing SOCS1 ameliorated endothelial cell injury and mitochondrial dysfunction induced by ox-LDL in vitro. Moreover, EP300 promoted SOCS1 transcription through increasing the acetylation of SOCS1 and recruiting H3K27ac to the SOCS1 gene promoter in HUVECs induced by ox-LDL. Additionally, SOCS1 repressed JAK/STAT cascade in ox-LDL-stimulated HUVECs. Silencing of EP300 reversed endothelial cell injury and mitochondrial dysfunction ameliorated by overexpression of SOCS1 in ox-LDL-induced HUVECs. In summary, SOCS1 alleviated endothelial injury and mitochondrial dysfunction via enhancing H3K27ac acetylation by recruiting EP300 to promoter region and inhibiting JAK/STAT pathway. These results contribute to discover underlying diagnostic biomarkers and therapeutic targets for CAD.
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Affiliation(s)
- Wenbo Xue
- Department of cardio-thoracic surgery, The Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Yuelu District, Changsha 410013, Hunan Province, China
| | - Liuping Deng
- Department of cardio-thoracic surgery, The Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Yuelu District, Changsha 410013, Hunan Province, China..
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Sun Y, Sun J, Ying K, Chen J, Chen T, Tao L, Bian W, Qiu L. EP300 regulates the SLC16A1-AS1-AS1/TCF3 axis to promote lung cancer malignancies through the Wnt signaling pathway. Heliyon 2024; 10:e27727. [PMID: 38515708 PMCID: PMC10955305 DOI: 10.1016/j.heliyon.2024.e27727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024] Open
Abstract
Objective To investigate the regulatory mechanism of EP300 in the interaction between SLC16A1-AS1 and TCF3 to activate the Wnt pathway, thereby promoting malignant progression in lung cancer. Methods In lung cancer cell lines, SLC16A1-AS1 was knocked down, and the impact of this knockdown on the malignant progression of lung cancer cells was assessed through clonogenic assays, Transwell assays, and apoptosis experiments. The regulatory relationship between EP300 and SLC16A1-AS1 was investigated through bioinformatic analysis and ChIP experiments. The expression of SLC16A1-AS1 and TCF3 in 56 paired lung cancer tissues was examined using RT-qPCR, and their correlation was analyzed. The interaction between TCF3 and SLC16A1-AS1 was explored through bioinformatic analysis and CoIP experiments. Activation of the Wnt/β-catenin pathway was assessed by detecting the accumulation of β-catenin in the nucleus through Western blotting. The role of EP300 in regulating the effect of SLC16A1-AS1/TCF3-mediated Wnt/β-catenin signaling on lung cancer malignant progression was validated through in vitro and in vivo experiments. Results SLC16A1-AS1 is highly expressed in lung cancer and regulates its malignant progression. EP300 mediates histone modifications on the SLC16A1-AS1 promoter, thus controlling its expression. SLC16A1-AS1 exhibits specific interactions with TCF3, and the SLC16A1-AS1/TCF3 complex activates the Wnt/β-catenin pathway. EP300 plays a critical role in regulating the impact of SLC16A1-AS1/TCF3-mediated Wnt/β-catenin signaling on lung cancer malignant progression. Conclusion EP300 regulates the SLC16A1-AS1/TCF3-mediated Wnt/β-catenin signaling pathway, influencing the malignant progression of lung cancer.
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Affiliation(s)
- Yunhao Sun
- Department of Thoracic Surgery, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Jian Sun
- Department of Thoracic Surgery, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Kaijun Ying
- Department of Thoracic Surgery, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Jinjin Chen
- Oncology Department, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Tingting Chen
- Department of Emergency, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Leilei Tao
- Oncology Department, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Weigang Bian
- Oncology Department, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
| | - Limin Qiu
- Department of Thoracic Surgery, The First People's Hospital of Yancheng City, The Yancheng Clinical College of Xuzhou Medical University, Yancheng, Jiangsu, 224005, PR China
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Sapkota D, Wang D, Schreurs O, Vallenari EM, Pandey Dhakal S, Küntziger T, Toközlü BS, Utheim TP, Chaudhry FA. Investigation of Roles of SLC38A1 in Proliferation and Differentiation of Mouse Tongue Epithelium and Expression in Human Oral Tongue Squamous Cell Carcinoma. Cancers (Basel) 2024; 16:405. [PMID: 38254895 PMCID: PMC10814082 DOI: 10.3390/cancers16020405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The aerobic glycolytic pathway, boosting lactate formation, and glutamine addiction are two hallmarks of cancer pathophysiology. Consistent with this, several cell membrane glutamine transporters, belonging to different solute carrier (SLC) families, have been shown to be upregulated in a cell-specific manner to furnish the cells with glutamine and glutamine-derived metabolic intermediates. Among them, the system A transporter Slc38a1 has a higher affinity for glutamine compared to other SLC transporters, and it undergoes highly multifaceted regulation at gene and protein levels. The current study aimed to investigate the functional role of Slc38a1 in the proliferation and maturation of the mouse tongue epithelium. Secondly, we aimed to examine the expression of SLC38A1 and its regulation in human tongue oral squamous cell carcinoma (OTSCC). Employing Slc38a1 wild-type and knockout mice, we showed that Slc38a1 was not directly linked to the regulation of the proliferation and differentiation of the mouse tongue epithelium. External transcriptomic datasets and Western blot analyses showed upregulation of SLC38A1 mRNA/protein in human OTSCC and oral cancer cell lines as compared to the corresponding controls. Further, an investigation of external datasets indicated that mechanisms other than the amplification of the SLC38A1 chromosomal locus or hypomethylation of the SLC38A1 promoter region might be important for the upregulation of SLC38A1 in OTSCC.
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Affiliation(s)
- Dipak Sapkota
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
| | - Daxin Wang
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, 0372 Oslo, Norway
| | - Olaf Schreurs
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
| | - Evan M. Vallenari
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
| | - Sushma Pandey Dhakal
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
| | - Thomas Küntziger
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
| | - Burcu Sengüven Toközlü
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
- Department of Oral Pathology, Faculty of Dentistry, Gazi University, Ankara 06510, Turkey
| | - Tor Paaske Utheim
- Department of Oral Biology, Faculty of Dentistry, University of Oslo, 0372 Oslo, Norway
- Department of Plastic and Reconstructive Surgery, Oslo University Hospital, 0372 Oslo, Norway
| | - Farrukh Abbas Chaudhry
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, 0372 Oslo, Norway
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Wu S, Liu M, Xiao S, Lai M, Wei L, Li D, Wang L, Yin F, Zeng X. Identification and verification of novel ferroptosis biomarkers predicts the prognosis of hepatocellular carcinoma. Genomics 2023; 115:110733. [PMID: 37866659 DOI: 10.1016/j.ygeno.2023.110733] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/28/2023] [Accepted: 10/19/2023] [Indexed: 10/24/2023]
Abstract
BACKGROUND Big data mining and experiments are widely used to mine new prognostic markers. METHODS Candidate genes were identified from CROEMINE and FerrDb. Kaplan-Meier survival and Cox regression analysis were applied to assess the association of genes with Overall survival time (OS) and Disease-free survival time (DFS) in two HCC cohorts. Real-time quantitative polymerase chain reaction (RT-qPCR) and Immunohistochemistry were performed in HCC samples. RESULTS 21 and 15 genes that can predict OS and DFS, which had not been reported before, were identified from 719 genes, respectively. Survival analysis showed elevated mRNA expression of GLMP, SLC38A6, and WDR76 were associated with poor prognosis, and three genes combination signature was an independent prognostic factor in HCC. RT-qPCR and Immunohistochemistry confirmed the results. CONCLUSIONS We established a novel computational process, which identified the expression levels of GLMP, SLC38A6, and WDR76 as potential ferroptosis-related biomarkers indicating the prognosis of HCC.
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Affiliation(s)
- Siqian Wu
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Meiliang Liu
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Suyang Xiao
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Mingshuang Lai
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Liling Wei
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Deyuan Li
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Lijun Wang
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China
| | - Fuqiang Yin
- Life Sciences Institute, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China; Key Laboratory of High-Incidence-Tumor Prevention and Treatment (Guangxi Medical University), Ministry of Education, Nanning, China.
| | - Xiaoyun Zeng
- Department of Epidemiology and Health Statistics, School of public health, Guangxi Medical University, 22 Shuangyong Road, Nanning 530021, Guangxi, China; Key Laboratory of High-Incidence-Tumor Prevention and Treatment (Guangxi Medical University), Ministry of Education, Nanning, China.
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Fekete JT, Győrffy B. New Transcriptomic Biomarkers of 5-Fluorouracil Resistance. Int J Mol Sci 2023; 24:ijms24021508. [PMID: 36675023 PMCID: PMC9867124 DOI: 10.3390/ijms24021508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
The overall response rate to fluoropyrimidine monotherapy in colorectal cancer (CRC) is limited. Transcriptomic datasets of CRC patients treated with 5-fluorouracil (5FU) could assist in the identification of clinically useful biomarkers. In this research, we aimed to analyze transcriptomic cohorts of 5FU-treated cell lines to uncover new predictive biomarker candidates and to validate the strongest hits in 5FU-treated human colorectal cancer samples with available clinical response data. We utilized an in vitro dataset of cancer cell lines treated with 5FU and used the reported area under the dose-response curve values to determine the therapeutic response to 5FU treatment. Mann-Whitney and ROC analyses were performed to identify significant genes. The strongest genes were combined into a single signature using a random forest classifier. The compound 5-fluorouracil was tested in 592 cell lines (294 nonresponders and 298 responders). The validation cohort consisted of 157 patient samples with 5FU monotherapy from three datasets. The three strongest associations with treatment outcome were observed in SHISA4 (AUC = 0.745, p-value = 5.5 × 10-25), SLC38A6 (AUC = 0.725, p-value = 3.1 × 10-21), and LAPTM4A (AUC = 0.723, p-value = 6.4 × 10-21). A random forest model utilizing the top genes reached an AUC value of 0.74 for predicting therapeutic sensitivity. The model correctly identified 83% of the nonresponder and 73% of the responder patients. The cell line cohort is available and the entire human colorectal cohort have been added to the ROCPlot analysis platform. Here, by using in vitro and in vivo data, we present a framework enabling the ranking of future biomarker candidates of 5FU resistance. A future option is to conduct an independent validation of the established predictors of resistance.
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Affiliation(s)
- János Tibor Fekete
- Research Center for Natural Sciences, Cancer Biomarker Research Group, Institute of Enzymology, Magyar Tudósok Krt. 2, H-1117 Budapest, Hungary
- National Laboratory for Drug Research and Development, Magyar Tudósok Krt. 2, H-1117 Budapest, Hungary
| | - Balázs Győrffy
- Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary
- Department of Bioinformatics, Semmelweis University, H-1094 Budapest, Hungary
- Correspondence: ; Tel.: +36-30-514-2822
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