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Zheng D, Wei Z, Zhang C, Liu W, Gong C, Wu F, Guo W. ZNF692 promotes osteosarcoma cell proliferation, migration, and invasion through TNK2-mediated activation of the MEK/ERK pathway. Biol Direct 2024; 19:28. [PMID: 38650011 PMCID: PMC11034355 DOI: 10.1186/s13062-024-00472-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 04/03/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Osteosarcoma is a diverse and aggressive bone tumor. Driver genes regulating osteosarcoma initiation and progression remains incompletely defined. Zinc finger protein 692 (ZNF692), a kind of Krüppel C2H2 zinc finger transcription factor, exhibited abnormal expression in different types of malignancies and showed a correlation with the clinical prognosis of patients as well as the aggressive characteristics of cancer cells. Nevertheless, its specific role in osteosarcoma is still not well understood. METHODS We investigated the dysregulation and clinical significance of ZNF692 in osteosarcoma through bioinformatic method and experimental validation. A range of in vitro assays, including CCK-8, colony formation, EdU incorporation, wound healing, and transwell invasion tests, were conducted to assess the impact of ZNF692 on cell proliferation, migration, and invasion in osteosarcoma. A xenograft mouse model was established to evaluate the effect of ZNF692 on tumor growth in vivo. Western blot assay was used to measure the protein levels of MEK1/2, P-MEK1/2, ERK1/2, and P-ERK1/2 in cells that had been genetically modified to either reduce or increase the expression of ZNF692. The relationship between ZNF692 and tyrosine kinase non-receptor 2 (TNK2) were validated by qRT-PCR, chromatin immunoprecipitation and luciferase reporter assays. RESULTS Expression of ZNF692 was increased in both human osteosarcoma tissues and cell lines. Furthermore, the expression of ZNF692 served as an independent predictive biomarker in osteosarcoma. The results of the survival analysis indicated that increased expression of ZNF692 was associated with worse outcome. Downregulation of ZNF692 inhibits the proliferation, migration, and invasion of osteosarcoma cells, whereas upregulation of ZNF692 has the opposite impact. Western blot assay indicates that reducing ZNF692 decreases phosphorylation of MEK1/2 and ERK1/2, whereas increasing ZNF692 expression enhances their phosphorylation. U0126, a potent inhibitor specifically targeting the MEK/ERK signaling pathway, partially counteracts the impact of ZNF692 overexpression on the proliferation, migration, and invasion of osteosarcoma cells. In addition, ZNF692 specifically interacts with the promoter region of TNK2 and stimulates the transcription of TNK2 in osteosarcoma cells. Forcing the expression of TNK2 weakens the inhibitory impact of ZNF692 knockdown on P-MEK1/2 and P-ERK1/2. Similarly, partly inhibiting TNK2 counteracts the enhancing impact of ZNF692 overexpression on the phosphorylation of MEK1/2 and ERK1/2. Functional tests demonstrate that the suppressive effects of ZNF692 knockdown on cell proliferation, migration, and invasion are greatly reduced when TNK2 is overexpressed. In contrast, the reduction of TNK2 hinders the ability of ZNF692 overexpression to enhance cell proliferation, migration, and invasion. CONCLUSION ZNF692 promotes the proliferation, migration, and invasion of osteosarcoma cells via the TNK2-dependent stimulation of the MEK/ERK signaling pathway. The ZNF692-TNK2 axis might potentially function as a possible predictive biomarker and a promising target for novel therapeutics in osteosarcoma.
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Affiliation(s)
- Di Zheng
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China
| | - Zhun Wei
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China
| | - Chong Zhang
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China
| | - Wenda Liu
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China
| | - Changtian Gong
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China
| | - Fei Wu
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China.
| | - Weichun Guo
- Department of Orthopedics, Renmin Hospital of Wuhan University, 430060, Wuhan, China.
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Meng W, Lu X, Wang G, Xiao Q, Gao J. ZNF692 drives malignant development of hepatocellular carcinoma cells by promoting ALDOA-dependent glycolysis. Funct Integr Genomics 2024; 24:53. [PMID: 38453820 PMCID: PMC10920453 DOI: 10.1007/s10142-024-01326-x] [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: 07/03/2023] [Revised: 11/30/2023] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
Hepatocellular carcinoma (HCC) is one of the malignancies with the worst prognosis worldwide, in the occurrence and development of which glycolysis plays a central role. This study uncovered a mechanism by which ZNF692 regulates ALDOA-dependent glycolysis in HCC cells. RT-qPCR and western blotting were used to detect the expression of ZNF692, KAT5, and ALDOA in HCC cell lines and a normal liver cell line. The influences of transfection-induced alterations in the expression of ZNF692, KAT5, and ALDOA on the functions of HepG2 cells were detected by performing MTT, flow cytometry, Transwell, cell scratch, and colony formation assays, and the levels of glucose and lactate were determined using assay kits. ChIP and luciferase reporter assays were conducted to validate the binding of ZNF692 to the KAT5 promoter, and co-IP assays to detect the interaction between KAT5 and ALDOA and the acetylation of ALDOA. ZNF692, KAT5, and ALDOA were highly expressed in human HCC samples and cell lines, and their expression levels were positively correlated in HCC. ZNF692, ALDOA, or KAT5 knockdown inhibited glycolysis, proliferation, invasion, and migration and promoted apoptosis in HepG2 cells. ZNF692 bound to the KAT5 promoter and promoted its activity. ALDOA acetylation levels were elevated in HCC cell lines. KAT5 bound to ALDOA and catalyzed ALDOA acetylation. ALDOA or KAT5 overexpression in the same time of ZNF692 knockdown, compared to ZNF692 knockdown only, stimulated glycolysis, proliferation, invasion, and migration and reduced apoptosis in HepG2 cells. ZNF692 promotes the acetylation modification and protein expression of ALDOA by catalyzing KAT5 transcription, thereby accelerating glycolysis to drive HCC cell development.
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Affiliation(s)
- Weiwei Meng
- Department of Laboratory, Shenzhen Baoan Shiyan People's Hospital, No. 11, Jixiang Road, Shiyan Street, Baoan District, Shenzhen, Guangdong, 518108, P.R. China
| | - Xiaojuan Lu
- Department of Laboratory, Shenzhen Baoan Shiyan People's Hospital, No. 11, Jixiang Road, Shiyan Street, Baoan District, Shenzhen, Guangdong, 518108, P.R. China
| | - Guanglei Wang
- Department of Laboratory, Shenzhen Baoan Shiyan People's Hospital, No. 11, Jixiang Road, Shiyan Street, Baoan District, Shenzhen, Guangdong, 518108, P.R. China
| | - Qingyu Xiao
- Department of Blood Transfusion, Shenzhen Baoan Shiyan People's Hospital, Shenzhen, Guangdong, 518108, P.R. China
| | - Jing Gao
- Department of Laboratory, Shenzhen Baoan Shiyan People's Hospital, No. 11, Jixiang Road, Shiyan Street, Baoan District, Shenzhen, Guangdong, 518108, P.R. China.
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Cai H, Chen S, Wu Z, Wang F, Tang S, Li D, Wang D, Guo W. Comprehensive analysis of ZNF692 as a potential biomarker associated with immune infiltration in a pan cancer analysis and validation in hepatocellular carcinoma. Aging (Albany NY) 2023; 15:13041-13058. [PMID: 37980166 DOI: 10.18632/aging.205218] [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: 05/30/2023] [Accepted: 10/02/2023] [Indexed: 11/20/2023]
Abstract
Currently, the roles of ZNF692 have been documented exclusively in lung, colon, and cervical cancers. However, its involvement in pan cancer remains unknown. In this study, we employed bioinformatics analysis and experimental validation to investigate the role of ZNF692 in pan cancer. Our findings revealed aberrant expression of ZNF692 across various types of cancer. High expression of ZNF692 was associated with poor overall survival (OS) in ACC, COAD, KIRC, LAML, and LIHC. ZNF692 exhibited promising diagnostic potential in certain tumor types. A significant correlation was observed between high ZNF692 expression and advanced stages of ACC, BLCA, KICH, KIRC, LIHC, and OV. The expression of ZNF692 exhibited a significant association with microsatellite instability (MSI) in eight types of cancer and tumor mutational burden (TMB) in ten types of cancer. A noteworthy correlation was observed between ZNF692 expression and immune infiltration as well as immune checkpoints. Amplification of ZNF692 emerged as the most frequent alteration in pan cancer. ZNF692 was implicated in various biological processes, cellular components, and molecular functions within the context of pan cancer. It is plausible that ZNF692 may contribute to chemotherapy and potentially be linked to chemoresistance. We constructed a competing endogenous RNA (ceRNA) network involving AC009403.11/miR-126-3p/ZNF692 in hepatocellular carcinoma (HCC). The expression of ZNF692 exhibited a notable upregulation in HCC cell lines. Aberrant expression of ZNF692 was observed across various types of cancer. ZNF692 holds potential as a valuable diagnostic, prognostic, and therapeutic target in the context of pan cancer.
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Affiliation(s)
- Hongjie Cai
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510062, Guangdong, China
| | - Song Chen
- Department of Minimally Invasive Interventional Therapy, Sun Yat-Sen University Cancer Center and Sun Yat-Sen University State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, Guangdong, China
| | - Zhiqiang Wu
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510062, Guangdong, China
| | - Fan Wang
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510062, Guangdong, China
| | - Shuangyan Tang
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510062, Guangdong, China
| | - Dongbing Li
- Department of Translational Medicine, ChosenMed Technology (Beijing) Co., Ltd., Beijing 100176, China
| | - Dongliang Wang
- Department of Translational Medicine, ChosenMed Technology (Beijing) Co., Ltd., Beijing 100176, China
| | - Wenbo Guo
- Department of Interventional Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510062, Guangdong, China
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Sun X, Zheng D, Guo W. Comprehensive Analysis of a Zinc Finger Protein Gene–Based Signature with Regard to Prognosis and Tumor Immune Microenvironment in Osteosarcoma. Front Genet 2022; 13:835014. [PMID: 35281811 PMCID: PMC8914066 DOI: 10.3389/fgene.2022.835014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
Osteosarcoma is the most common malignant bone tumor that seriously threatens the lives of teenagers and children. Zinc finger (ZNF) protein genes encode the largest transcription factor family in the human genome. Aberrant expressions of ZNF protein genes widely occur in osteosarcoma, and these genes are therefore attractive biomarker candidates for prognosis prediction. In this study, we conducted a comprehensive analysis of ZNF protein genes in osteosarcoma and identified prognosis-related ZNF protein genes. Then, we constructed a prognostic signature based on seven prognosis-related ZNF protein genes and stratified patients into high- and low-risk groups. The seven genes included MKRN3, ZNF71, ZNF438, ZNF597, ATMIN, ZNF692, and ZNF525. After validation of the prognostic signature in internal and external cohorts, we constructed a nomogram including clinical features such as sex and age and the relative risk score based on the risk signature. Functional enrichment analysis of the risk-related differentially expressed genes revealed that the prognostic signature was closely associated with immune-related biological processes and signaling pathways. Moreover, we found significant differences between the high- and low-risk groups for the scores of diverse immune cell subpopulations, including CD8+ T cells, neutrophils, Th1 cells, and TILs. Regarding immune function, APC co-inhibition, HLA, inflammation promotion, para-inflammation, T-cell co-inhibition, and the type I IFN response were significantly different between the high- and low-risk groups. Of the seven ZNF protein genes, lower expressions of ATMIN, MKRN3, ZNF71, ZNF438, and ZNF597 were correlated with a high risk, while higher expressions of ZNF525 and ZNF692 were associated with a high risk. The Kaplan–Meier survival analysis suggested that lower expressions of ATMIN, ZNF438, and ZNF597 and the higher expression of ZNF692 were associated with worse overall survival in osteosarcoma. In conclusion, our ZNF protein gene–based signature was a novel and clinically useful prognostic biomarker for osteosarcoma patients.
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Nuñez R, Rodriguez MJ, Palomares F, Gomez F, Jabato FM, Cordoba-Caballero J, Seoane P, Losada J, Rojo J, Torres MJ, Perkins JR, Mayorga C. Transcriptional changes in dendritic cells underlying allergen specific induced tolerance in a mouse model. Sci Rep 2022; 12:2797. [PMID: 35181694 PMCID: PMC8857182 DOI: 10.1038/s41598-022-06186-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/14/2022] [Indexed: 12/13/2022] Open
Abstract
To investigate food allergy-tolerance mechanisms induced through allergen-specific immunotherapy we used RNA-Sequencing to measure gene expression in lymph-node-derived dendritic cells from Pru p 3-anaphylactic mice after immunotherapy with glycodendropeptides at 2 nM and 5 nM, leading to permanent tolerance and short-term desensitization, respectively. Gene expression was also measured in mice receiving no immunotherapy (anaphylaxis); and in which anaphylaxis could never occur (antigen-only). Compared to anaphylaxis, the antigen-only group showed the greatest number of expression-changes (411), followed by tolerant (186) and desensitized (119). Only 29 genes changed in all groups, including Il12b, Cebpb and Ifngr1. The desensitized group showed enrichment for genes related to chronic inflammatory response, secretory granule, and regulation of interleukin-12 production; the tolerant group showed genes related to cytokine receptor activity and glucocorticoid receptor binding, suggesting distinct pathways for similar outcomes. We identified genes and processes potentially involved in the restoration of long-term tolerance via allergen-specific immunotherapy, representing potential prognostic biomarkers.
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Affiliation(s)
- Rafael Nuñez
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
| | - Maria Jose Rodriguez
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
| | - Francisca Palomares
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
| | - Francisca Gomez
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Fernando M Jabato
- Department of Molecular Biology and Biochemistry, University of Malaga, Malaga, Spain
| | | | - Pedro Seoane
- Department of Molecular Biology and Biochemistry, University of Malaga, Malaga, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Jorge Losada
- Laboratory of Carbohydrates, Instituto de Investigaciones Químicas (IIQ), CSIC-Universidad de Sevilla, Sevilla, Spain
| | - Javier Rojo
- Laboratory of Carbohydrates, Instituto de Investigaciones Químicas (IIQ), CSIC-Universidad de Sevilla, Sevilla, Spain
| | - Maria Jose Torres
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain
- Nanostructures for Diagnosing and Treatment of Allergic Diseases Laboratory, Centro Andaluz de Nanomedicina y Biotecnología-BIONAND, Málaga, Spain
- Medicine Department, Universidad de Málaga-UMA, Málaga, Spain
| | - James Richard Perkins
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain
- Department of Molecular Biology and Biochemistry, University of Malaga, Malaga, Spain
- CIBER de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Cristobalina Mayorga
- Allergy Research Group, Research Laboratory, Allergy Unit, Hospital Regional Universitario de Málaga-IBIMA, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009, Málaga, Spain.
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain.
- Nanostructures for Diagnosing and Treatment of Allergic Diseases Laboratory, Centro Andaluz de Nanomedicina y Biotecnología-BIONAND, Málaga, Spain.
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Chen H, Zhang S, Wu Y, Li Z, Wang D, Cai S, Wang Z. The role of circular RNA circ_0008285 in gestational diabetes mellitus by regulating the biological functions of trophoblasts. Biol Res 2021; 54:14. [PMID: 33879262 PMCID: PMC8056579 DOI: 10.1186/s40659-021-00337-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/08/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) has emerged as vital regulator involved in various diseases. In this study, we identified and investigated the potential circRNAs involved in gestational diabetes mellitus (GDM). METHODS High-throughput sequencing was used to collect the plasma circRNAs expression profiles of GDM patients. Quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) was used to measure the expressions of circ_0008285 and circ_0001173 in the plasma specimens. The Pearson's correlation test was employed to assess the correlation between 2 circRNAs expression and the clinicopathologic data. Two circRNAs expression was verified in high glucose (HG)-induced HTR-8/SVneo cells. MTS, transwell assay was used to evaluate the effects of circ_0008285 expression on HG-induced HTR-8/SVneo cells. The network of circ_0008285 was constructed using cytocape. RESULTS In GDM patients, the expression of circ_0008285 was significantly upregulated, while that of circ_0001173 was decreased. Circ_0008285 was significantly correlated with the total cholesterol and LDL-C levels. Circ_0001173 was significantly correlated with glycated hemoglobin. HG promoted the proliferation, invasion, and migration in HTR-8/SVneo cells, while the knockdown of circ_0008285 exerted reverse effects. In addition, network construction exhibited that circ_0008285 had 45 miRNA binding sites, which correlated with 444 mRNA. CONCLUSIONS circ_0008285 plays an important role and provides a clue for the usage of therapeutic targets in the development of GDM.
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Affiliation(s)
- Haitian Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Shaofeng Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yanxin Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Zhuyu Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Dongyu Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Shiqin Cai
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Zilian Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China.
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Hao T, Xu J, Fang S, Jiang J, Chen X, Wu W, Li L, Li M, Zhang C, He Y. Overexpression of ZNF460 predicts worse survival and promotes metastasis through JAK2/STAT3 signaling pathway in patient with colon cancer. J Cancer 2021; 12:3198-3208. [PMID: 33976729 PMCID: PMC8100796 DOI: 10.7150/jca.55079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/25/2021] [Indexed: 12/24/2022] Open
Abstract
Zinc finger proteins (ZNFs) are a class of protein containing zinc finger domains, and they play an important role in tumor progression. However, as a member of the ZNFs family, the effect of ZNF460 in colon cancer remains unclear. In this study, we found that the expression of ZNF460 protein were markedly increased in clinical colon cancer tissues compared with para-cancer non-cancerous tissues by tissue immunohistochemistry (IHC) and western blot (WB). We also confirmed this result at the mRNA and protein levels of ZNF460 through bioinformatics analysis. In addition, high expression of ZNF460 was correlated with increased depth of invasion (P<0.05), increased lymph node metastasis (P<0.05), distant metastasis (P<0.05) and high blood serum CA19-9 level (P<0.05). High expression of ZNF460 predicted poor overall survival (OS) and recurrence free survival (RFS) in patients with colon cancer. Moreover, multivariate analyses revealed that ZNF460 was an independent prognostic factor in both OS (hazard ratio [HR]: 1.636; 95% confidence interval [CI], 1.028-2.603; P = 0.038) and RFS (HR: 2.215; 95% CI: 1.227-3.997; P = 0.008). The knockdown of ZNF460 suppressed the invasion and metastasis of colon cancer cells in vitro. Mechanistically, we revealed that ZNF460 promotes the activation of the JAK2/STAT3 signaling pathway in colon cancer cells. Taken together, overexpression of ZNF460 predicted worse survival and promoted metastasis through JAK2/STAT3 signaling pathway in patient with colon cancer, and could be a novel therapeutic target in colon cancer.
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Affiliation(s)
- Tengfei Hao
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.,Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, China
| | - Jiannan Xu
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.,Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, China
| | - Sufen Fang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Jianlong Jiang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Xinyuan Chen
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Wenhui Wu
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Liang Li
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Mingzhe Li
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Changhua Zhang
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Yulong He
- Digestive Disease Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China.,Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510000, China
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Massoumi RL, Teper Y, Ako S, Ye L, Wang E, Hines OJ, Eibl G. Direct Effects of Lipopolysaccharide on Human Pancreatic Cancer Cells. Pancreas 2021; 50:524-528. [PMID: 33939664 PMCID: PMC8097724 DOI: 10.1097/mpa.0000000000001790] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Obesity, a risk factor for pancreatic adenocarcinoma (PDAC), is often accompanied by a systemic increase in lipopolysaccharide (LPS; metabolic endotoxemia), which is thought to mediate obesity-associated inflammation. However, the direct effects of LPS on PDAC cells are poorly understood. METHODS The expression of toll-like receptor 4, the receptor for LPS, was confirmed in PDAC cell lines. AsPC-1 and PANC-1 cells were exposed to LPS, and differential gene expression was determined by RNA sequencing. The activation of the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway by LPS in PDAC cells was assessed by Western blotting. RESULTS The expression of toll-like receptor 4 was confirmed in all PDAC cell lines. The exposure to LPS led to differential expression of 3083 genes (426 ≥5-fold) in AsPC-1 and 2584 genes (339 ≥5-fold) in PANC-1. A top canonical pathway affected by LPS in both cell lines was PI3K/Akt/mTOR. Western blotting confirmed activation of this pathway as measured by phosphorylation of the ribosomal protein S6 and Akt. CONCLUSIONS The exposure of PDAC cells to LPS led to differential gene expression. A top canonical pathway was PI3K/Akt/mTOR, a known oncogenic driver. Our findings provided evidence that LPS can directly induce differential gene expression in PDAC cells.
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Affiliation(s)
- Roxanne L Massoumi
- From the Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA
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He D, Zhang X, Tu J. Diagnostic significance and carcinogenic mechanism of pan-cancer gene POU5F1 in liver hepatocellular carcinoma. Cancer Med 2020; 9:8782-8800. [PMID: 32978904 PMCID: PMC7724499 DOI: 10.1002/cam4.3486] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/30/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The prognostic and clinicopathological significance of POU Class 5 Homeobox 1 (POU5F1) among various cancers are disputable heretofore. The diagnostic value and functional mechanism of POU5F1 in liver hepatocellular carcinoma (LIHC) have not been studied thoroughly. METHODS An integrative strategy of meta-analysis, bioinformatics, and wet-lab approach was used to explore the diagnostic and prognostic significance of POU5F1 in various types of tumors, especially in LIHC. Meta-analysis was utilized to investigate the impact of POU5F1 on prognosis and clinicopathological parameters in various cancers. The expression level and diagnostic value of POU5F1 were assessed by qPCR in plasma collected from LIHC patients and controls. The correlation between POU5F1 and tumor infiltrating immune cells (TIICs) in LIHC was evaluated by CIBERSORT. Gene set enrichment analysis (GSEA) was performed based on TCGA. Hub genes and related pathways were identified on the basis of co-expression genes of POU5F1. RESULTS Elevated POU5F1 was associated with poor OS, DFS, RFS, and DSS in various cancers. POU5F1 was confirmed as an independent risk factor for LIHC and correlated with tumor occurrence, stage, and invasion depth. The combination of POU5F1 and AFP in plasma was with high diagnostic validity (AUC = 0.902, p < .001). Specifically, the level of POU5F1 was correlated with infiltrating levels of B cells, T cells, dendritic cells, and monocytes in LIHC. GSEA indicated that POU5F1 participated in multiple cancer-related pathways and cell proliferation pathways. Moreover, CBX3, CCHCR1, and NFYC were filtered as the central hub genes of POU5F1. CONCLUSION Our study identified POU5F1 as a pan-cancer gene that could not only be a prognostic and diagnostic biomarker in various cancers, especially in LIHC, but functionally carcinogenic in LIHC.
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Affiliation(s)
- Dingdong He
- Center for Gene Diagnosis, and Clinical LabZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Xiaokang Zhang
- Center for Gene Diagnosis, and Clinical LabZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Jiancheng Tu
- Center for Gene Diagnosis, and Clinical LabZhongnan Hospital of Wuhan UniversityWuhanChina
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Xue W, Men S, Liu R. Rotenone restrains the proliferation, motility and epithelial-mesenchymal transition of colon cancer cells and the tumourigenesis in nude mice via PI3K/AKT pathway. Clin Exp Pharmacol Physiol 2020; 47:1484-1494. [PMID: 32282954 PMCID: PMC7384028 DOI: 10.1111/1440-1681.13320] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 03/15/2020] [Accepted: 03/30/2020] [Indexed: 12/13/2022]
Abstract
Rotenone, a toxic rotenoid compound, has anti-tumour effects on several cancers. This study aims to clarify the effect of rotenone on the proliferation, apoptosis, invasion and migration of colon cancer cells and tumourigenesis in nude mice. The present results show that rotenone significantly inhibited the proliferation, promoted the apoptosis, and suppressed the invasion and migration of colon cancer cells in a dose-dependent manner. Rotenone inhibited PI3K/AKT pathway in LoVo and SW480 cells in a dose-dependent manner. In addition, rotenone regulated the proliferation, apoptosis, invasion, migration and EMT of LoVo and SW480 cells through PI3K/AKT pathway. In colon cancer xenograft mice, rotenone inhibited tumour volume and weight in nude mice, inhibited PI3K/AKT pathway and EMT in vivo. Therefore, rotenone inhibited the proliferation, invasion and migration, promoted the apoptosis of colon cancer cells through PI3K/AKT pathway in vitro, and suppressed the tumourigenesis in nude mice in vivo.
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Affiliation(s)
- Wusong Xue
- Department of AnoretalDongfang HospitalBeijing University of Chinese MedicineBeijingChina
| | - Siye Men
- Department of General SurgeryDongfang HospitalBeijing University of Chinese MedicineBeijingChina
| | - Renghai Liu
- Department of AnoretalDongfang HospitalBeijing University of Chinese MedicineBeijingChina
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Guo J, Li Y, Duan H, Yuan L. Metformin Suppresses the Proliferation and Promotes the Apoptosis of Colon Cancer Cells Through Inhibiting the Expression of Long Noncoding RNA-UCA1. Onco Targets Ther 2020; 13:4169-4181. [PMID: 32523353 PMCID: PMC7234977 DOI: 10.2147/ott.s245091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/28/2020] [Indexed: 12/17/2022] Open
Abstract
PURPOSE LncRNA-UCA1 has been proven to facilitate the proliferation and metastasis of colon cancer. Whether metformin inhibits the progression of colon cancer by suppressing lncRNA-UCA1 remains unknown. In this research, we aimed to explore the role of Metformin playing in pathogenesis of colon cancer. MATERIALS AND METHODS Using qRT-PCR, we measured the expression of five tumor-promoting lncRNAs in SW480 and SW620 colon cancer cells. Then, we conducted Western blotting and immunohistochemistry to evaluate the effects of MET or UCA1 knockdown or the combined MET+ UCA1 knockdown on the activities of the PI3K/AKT and ERK pathways in vitro and in tumor tissues obtained from tumor-bearing nude mice. RESULTS The results from CCK-8 assays showed that MET dose-dependently and time-dependently inhibited the viability of the colon cancer cells in vitro. Flow cytometry revealed that MET promoted the apoptosis of the SW480 and SW620 cells. qRT-PCR showed that lncRNA-UCA1 had the highest expression among the five lncRNAs. Suppressing UCA1 expression by siRNA or shRNA could further enhance the metformin-mediated anticancer effects against colon cancer in vitro and in vivo. Metformin decreased the UCA1 expression and further inhibited the proliferation and promoted the apoptosis of the colon cancer cells, which were associated with inactivation of the PI3K/AKT and ERK signaling pathways in vitro and in the tumor tissues obtained from the mice. CONCLUSION These results indicated that metformin has potential anticancer properties and revealed the anticancer mechanisms of metformin against colon cancer via regulating lncRNA-UCA1.
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Affiliation(s)
- Jianbo Guo
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yan Li
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - He Duan
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Lu Yuan
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
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Wang RY, Chen XW, Zhang WW, Jiang F, Liu MQ, Shen XB. CYP2E1 changes the biological function of gastric cancer cells via the PI3K/Akt/mTOR signaling pathway. Mol Med Rep 2020; 21:842-850. [PMID: 31974627 PMCID: PMC6947835 DOI: 10.3892/mmr.2019.10890] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 11/21/2019] [Indexed: 12/24/2022] Open
Abstract
The present study investigated the role of cytochrome P450 family 2 subfamily E polypeptide 1 (CYP2E1) in the development and progression of gastric cancer (GC). The expression levels of CYP2E1 in MGC‑803 GC cells and normal GES‑1 cells were investigated via western blotting, and it was identified that the expression of CYP2E1 was different between GES‑1 and MGC‑803 cells. CYP2E1 was overexpressed in MGC‑803 cells using a lentiviral vector GV358. Cell Counting Kit‑8, flow cytometry, cell migration and Matrigel invasion assays suggested that overexpression of CYP2E1 promoted the proliferation and invasion, and inhibited the apoptosis of GC cells. The relationship between CYP2E1 expression and key signaling molecules in the PI3K/Akt/mTOR signaling pathway was assessed. Reverse transcription‑quantitative PCR analysis showed that mTOR mRNA expression was significantly increased after overexpression of CYP2E1 (P<0.05). Western blotting results showed that overexpression of CYP2E1 upregulated the expression of phosphorylated (p)‑Akt, p‑mTOR and p‑p70 ribosomal protein S6 kinase (P70S6K; Ser371) proteins (P<0.05). To further investigate the relationship between CYP2E1 and the PI3K/Akt/mTOR signaling pathway in GC cells, MGC‑803 cells were treated with the PI3K inhibitor LY294002, and changes in the expression levels of PI3K, AKT, mTOR, P70S6K and CYP2E1 were observed. The present results showed that LY294002 downregulated the expression of PI3K, CYP2E1, AKT, mTOR and P70S6K (P<0.05). Therefore, changes in the biological function of GC cells induced by CYP2E1 overexpression may be via the PI3K/Akt/mTOR signaling pathway.
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Affiliation(s)
- Rui-Ying Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Xiao-Wei Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Wen-Wen Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Fei Jiang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Meng-Qi Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Xiao-Bing Shen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, P.R. China
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