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Xu Y, Wang D, Zhao G. Transcriptional activation of Proteasome 26S non-ATPase subunit 7 by forkhead box P3 participates in gastric cancer cell proliferation and apoptosis. Bioengineered 2022; 13:2525-2536. [PMID: 35037550 PMCID: PMC8974172 DOI: 10.1080/21655979.2021.2018097] [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] [Indexed: 11/29/2022] Open
Abstract
Proteasome 26S non-ATPase subunit 7 (PSMD7) and forkhead box P3 (FOXP3) have been found to be both upregulated in gastric cancer tissues. FOXP3 was also predicted to have binding sites on PSMD7 promoter. Thus, this study investigated the relationship between PSMD7 and FOXP3 and their roles in gastric cancer. Bioinformatic databases predicted PSMD7 expression in non-cancerous gastric tissue and gastric cancer tissue, as well as the correlation between PSMD7 and the overall/disease free survival. PSMD7 expression in non-cancerous gastric tissue or cells and gastric cancer tissue or cells was detected by qPCR and Western blot. After PSMD7 downregulation by siRNA interference, cell viability, colony-forming capacity and cell apoptosis were analyzed with cell counting kit-8 assay, colony formation assay and terminal deoxynucleotidyl transferasemediated dUTP nick end-labeling. Proliferation and apoptosis markers were assayed by qPCR and Western blot. Dual-luciferase reporter and chromatin immunoprecipitation assays were performed to look at the binding relationship between FOXP3 and PSMD7 promoter. Cell proliferation and apoptosis were examined again after co-transfection of PSMD7 siRNA plasmid and FOXP3 overexpression plasmid. PSMD7 expression was much higher in gastric cancer tissue and cell lines. Interference with PSMD7 decreased gastric cancer cell viability, inhibited their proliferation and colony formation and promoted cell apoptosis. FOXP3 was found to bind to PSMD7 promoter and activate PSMD7 expression. Overexpression of FOXP3 could rescue the effects of PSMD7 knockdown on gastric cancer cells. PSMD7 is involved in the proliferation and apoptosis of gastric cancer cells and can be transcriptionally regulated by FOXP3.
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Affiliation(s)
- Yujie Xu
- Department of Gastrointestinal Surgery, Haikou People's Hospital, Haikou, Hainan Province, China
| | - Dingmao Wang
- Department of Gastrointestinal Surgery, Haikou People's Hospital, Haikou, Hainan Province, China
| | - Guodong Zhao
- Department of Gastrointestinal Surgery, Haikou People's Hospital, Haikou, Hainan Province, China
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2
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Abd-Allah MYY, Abdel-Salam RA, Refat S. Immunohistochemical expression of FOXP3 in gastric carcinoma; its relation to Ki-67 proliferation marker, HER2/neu expression, and other clinicopathological parameters. J Immunoassay Immunochem 2021; 43:1959341. [PMID: 34806545 DOI: 10.1080/15321819.2021.1959341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Gastric cancer is common cancer in the world. Contradictory results regarding FOXP3 expression in gastric carcinoma were detected and the role of Ki-67 in prognosis is not completely understood. Furthermore, due to increasing use of anti-HER2 drug trastuzumab for gastric cancer, assessment of HER2 expression becomes important. This study tried to assess the FOXP3 expression in gastric carcinoma and to study the relation between its expression and Ki-67 and HER2/neu expression and relation between their expression and other clinicopathological variables. This retrospective study was carried out on 60 gastric adenocarcinoma cases. Tissue microarrays and immunohistochemical staining for FOXP3, Ki-67 and HER2/neu were done and then assessed and scored. HER2/neu expression showed significant relation to Lauren histological type and lymph node status. High Ki-67 index was related significantly to patients' age, lympho-vascular tumor emboli, peri-neural invasion, tumor grade, lymph node status, and cancer stage. There was significant relation between high FOXP3 expression and patients' age, lympho-vascular tumor emboli, peri-neural invasion, tumor grade, lymph node status, and cancer stage. Direct positive significant relationships between HER2/neu, Ki-67, and FOXP3 expression were noticed. Finally, high FOXP3 expression, positive HER2/neu, and high Ki-67 nuclear proliferation index may be an indication of the aggressiveness of gastric carcinoma.
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Affiliation(s)
- Mona Y Y Abd-Allah
- Associate Professor of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt.,Assistant Lecturer of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt.,Lecturer of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt
| | - Ramy Ahmed Abdel-Salam
- Associate Professor of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt.,Assistant Lecturer of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt.,Lecturer of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt
| | - Sherine Refat
- Associate Professor of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt.,Assistant Lecturer of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt.,Lecturer of Pathology, Faculty of Medicine, Mansoura University, Al Mansurah Egypt
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Cui H, Jiang Z, Zeng S, Wu H, Zhang Z, Guo X, Dong K, Wang J, Shang L, Li L. A new candidate oncogenic lncRNA derived from pseudogene WFDC21P promotes tumor progression in gastric cancer. Cell Death Dis 2021; 12:903. [PMID: 34601496 PMCID: PMC8487428 DOI: 10.1038/s41419-021-04200-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/07/2021] [Accepted: 09/22/2021] [Indexed: 11/25/2022]
Abstract
As oncogenes and tumor suppressor genes, long non-coding RNAs (lncRNAs) regulate the biological behavior of gastric cancer (GC) cells such as proliferation, invasion, and metastasis through various signal pathways. At present, although numerous lncRNAs that significantly influence the development and progression of GC have been identified, a considerable number of them have not been found and studied yet. In this study, we identified a new lncRNA derived from pseudogenes WFDC21P, which have not been reported in any previous GC study. LncRNA WFDC21P was significantly upregulated in GC cells and tissues, and clinically associated with the pathological stages of advanced GC. WFDC21P promoted proliferation and metastasis of GC cells both in vitro and in vivo. LncRNA WFDC21P was directly bound to GTPase Ran and it promoted the activity of the Akt/GSK3β/β-catenin pathway. Forkhead Box P3 (FOXP3), as a transcription factor of WFDC21P, was directly bound to the promoter region and it positively regulated the transcription of WFDC21P. This finding may provide a novel biomarker and therapeutic target for GC.
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Affiliation(s)
- Huaiping Cui
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhaoyu Jiang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shujie Zeng
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hao Wu
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zihao Zhang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaobo Guo
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Kangdi Dong
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Jinshen Wang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Liang Shang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
- Shandong Provincial Laboratory of Translational Medicine Engineering for Digestive Tumors, Shandong Provincial Hospital, Jinan, Shandong, China.
| | - Leping Li
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
- Shandong Provincial Laboratory of Translational Medicine Engineering for Digestive Tumors, Shandong Provincial Hospital, Jinan, Shandong, China.
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Yin H, Chu A, Liu S, Yuan Y, Gong Y. Identification of DEGs and transcription factors involved in H. pylori-associated inflammation and their relevance with gastric cancer. PeerJ 2020; 8:e9223. [PMID: 32547867 PMCID: PMC7275685 DOI: 10.7717/peerj.9223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/29/2020] [Indexed: 12/16/2022] Open
Abstract
Background Previous studies have indicated that chronic inflammation linked to H. pylori infection is the leading causes for gastric cancer (GC). However, the exact mechanism is not entirely clear until now. Purpose To identify the key molecules and TFs involved in H. pylori infection and to provide new insights into H. pylori-associated carcinogenesis and lay the groundwork for the prevention of GC. Results GO and KEGG analysis revealed that the DEGs of Hp+-NAG were mainly associated with the immune response, chemokine activity, extracellular region and rheumatoid arthritis pathway. The DEGs of Hp+-AG-IM were related to the apical plasma membrane, intestinal cholesterol absorption, transporter activity and fat digestion and absorption pathway. In Hp+-NAG network, the expression of TNF, CXCL8, MMP9, CXCL9, CXCL1, CCL20, CTLA4, CXCL2, C3, SAA1 and FOXP3, JUN had statistical significance between normal and cancer in TCGA database. In Hp+-AG-IM network the expression of APOA4, GCG, CYP3A4, XPNPEP2 and FOXP3, JUN were statistically different in the comparison of normal and cancer in TCGA database. FOXP3 were negatively associated with overall survival, and the association for JUN was positive. Conclusion The current study identified key DEGs and their transcriptional regulatory networks involved in H. pylori-associated NAG, AG-IM and GC and found that patients with higher expressed FOXP3 or lower expressed JUN had shorter overall survival time. Our study provided new directions for inflammation-associated oncogenic transformation involved in H. pylori infection.
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Affiliation(s)
- Honghao Yin
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, LiaoNing, China
| | - Aining Chu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, LiaoNing, China
| | - Songyi Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, LiaoNing, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, LiaoNing, China
| | - Yuehua Gong
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, LiaoNing, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, LiaoNing, China
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Li J, Zhang H, Liu M, Xiang Y, Li H, Huang F, Li H, Dai Z, Gu CJ, Liao X, Zhang T. miR‐133a‐3p/FOXP3 axis regulates cell proliferation and autophagy in gastric cancer. J Cell Biochem 2020; 121:3392-3405. [DOI: 10.1002/jcb.29613] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 12/11/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Jia‐Peng Li
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Hui‐Min Zhang
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Mei‐Jun Liu
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Yuan Xiang
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Hui Li
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Feng Huang
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Han‐Han Li
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Zhou‐Tong Dai
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Chao Jiang Gu
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Xing‐Hua Liao
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
| | - Tong‐Cun Zhang
- College of Life and Health Sciences, Institute of Biology and MedicineWuhan University of Science and Technology Wuhan Hubei China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin, College of BiotechnologyTianjin University of Science and Technology Tianjin China
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Wang Z, Zhang J. FOXP3 promotes colorectal carcinoma liver metastases by evaluating MMP9 expression via regulating S-adenosylmethionine metabolism. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:592. [PMID: 32566619 PMCID: PMC7290543 DOI: 10.21037/atm-20-3287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Growing evidence has proved that Forkhead box protein 3 (FOXP3), which is a master regulatory gene in the development and function of regulatory T-cells, is expressed in human cancer cells. This expression indicates the crucial role FOXP3 takes up as the disease progresses. However, its role in colorectal cancer (CRC) liver metastasis is still mostly unknown. This study set out to explore the molecular characteristics of FOXP3 in driving the liver metastasis within CRC. Methods We downloaded the RNA-seq data from the GSE50760. Weighted gene co-expression network analysis (WGCNA)WGCNA and RNA-Seq analysis were applied to find the key gene network associated with colorectal cancer liver metastasis. Then we performed pathway enrichment analysis on liver metastasis-associated gene set. Immunohistochemistry, in vitro and in vivo studies were conducted to test expression and function of FOXP3 in CRC tissues and liver metastasis tissues. Non-targeted metabolomics analysis was performed to identify the alteration of FOXP3 expression in metabolites of colorectal cancer liver metastasis. Western blot was performed to confirm changes of matrix metalloproteinase 9MMP9 expression were downstream events of S-adenosyl-methionine (SAM). Results We found that FOXP3 and MMP9 exhibited co-expression relationships and affected liver metastasis in CRC. Upregulation of FOXP3 promotes cell migration and invasion in CRC, which suggests a pro-cancer effect. Moreover, metabolomics analysis showed that knockdown of FOXP3 significantly reduced SAM levels, and changes of MMP9 expression were downstream events of SAM, which is concentration-dependent. Besides, The Kyoto Encyclopedia of Genes and Genomes (KEGG) and Western blot analysis confirmed that overexpression of FOXP3 activates the Wnt pathway to promote colon cancer metastasis. Conclusions Our results altogether suggested that FOXP3 expression inhibited the SAM cycle to reduce SAMe levels, resulting in altered MMP9 expression and helped CRC liver metastasis.
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Affiliation(s)
- Zhe Wang
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, Shenyang 110042, China
| | - Jingdong Zhang
- Medical Oncology Department of Gastrointestinal Cancer, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, Shenyang 110042, China
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Zhou T, Chen S, Mao X. miR-145-5p affects the differentiation of gastric cancer by targeting KLF5 directly. J Cell Physiol 2018; 234:7634-7644. [PMID: 30367481 DOI: 10.1002/jcp.27525] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 09/10/2018] [Indexed: 12/15/2022]
Abstract
Krüppel-like factor 5 (KLF5) takes part in the pathologic processes of many types of cancer; however, its expression and roles in the biological behavior of gastric cancer remain unknown. TargetScan suggested that miR-145-5p is the predicted effective and conserved microRNA (miRNA) that binds to KLF5 through its 3'-untranslated region (UTR). We investigated the expression of KLF5 and miR-145-5p messenger RNA (mRNA) in gastric cancer and then analyzed its role in the biological behavior of gastric cancer cells. Our results indicated that KLF5 expression was detected by immunohistochemistry in 39.7% of the gastric cancer cases and was increased compared with that of the corresponding noncancerous normal mucosa (0.01 < p < 0.05). The poorly differentiated subtype showed positive KLF5 expression, whereas the differentiated subtype showed negative KLF5 expression (p < 0.05). Dual-luciferase reporter assay suggested KLF5 3'-UTR was the direct target of miR-145-5p. Compared with the differentiated gastric cancer, miR-145-5p was downregulated in undifferentiated gastric cancer (p < 0.05). The downregulation of KLF5 expression and differentiation of MGC-803 and BGC-823 caused by siKLF5 or miR-145-5p mimic transfection. Our results indicated that miR-145-5p/KLF5 3'-UTR affected the differentiation of gastric cancer. miR-145-5p was able to promote gastric cancer differentiation by targeting KLF5 3'-UTR directly. Our data suggest a novel mechanism for cancer differentiation and a new facet to the role of miR-145-5p/KLF5 in gastric cancer.
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Affiliation(s)
- Taicheng Zhou
- Departments of Gastroenterological Surgery and Hernia Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shuang Chen
- Departments of Gastroenterological Surgery and Hernia Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiaoyun Mao
- Department of Breast Surgery, Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
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