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Song H, Jiang H, Hu W, Hai Y, Cai Y, Li H, Liao Y, Huang Y, Lv X, Zhang Y, Zhang J, Huang Y, Liang X, Huang H, Lin X, Wang Y, Yi X. Cervical extracellular matrix hydrogel optimizes tumor heterogeneity of cervical squamous cell carcinoma organoids. SCIENCE ADVANCES 2024; 10:eadl3511. [PMID: 38748808 PMCID: PMC11095500 DOI: 10.1126/sciadv.adl3511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 04/10/2024] [Indexed: 05/19/2024]
Abstract
Cervical cancer, primarily squamous cell carcinoma, is the most prevalent gynecologic malignancy. Organoids can mimic tumor development in vitro, but current Matrigel inaccurately replicates the tissue-specific microenvironment. This limitation compromises the accurate representation of tumor heterogeneity. We collected para-cancerous cervical tissues from patients diagnosed with cervical squamous cell carcinoma (CSCC) and prepared uterine cervix extracellular matrix (UCEM) hydrogels. Proteomic analysis of UCEM identified several tissue-specific signaling pathways including human papillomavirus, phosphatidylinositol 3-kinase-AKT, and extracellular matrix receptor. Secreted proteins like FLNA, MYH9, HSPA8, and EEF1A1 were present, indicating UCEM successfully maintained cervical proteins. UCEM provided a tailored microenvironment for CSCC organoids, enabling formation and growth while preserving tumorigenic potential. RNA sequencing showed UCEM-organoids exhibited greater similarity to native CSCC and reflected tumor heterogeneity by exhibiting CSCC-associated signaling pathways including virus protein-cytokine, nuclear factor κB, tumor necrosis factor, and oncogenes EGR1, FPR1, and IFI6. Moreover, UCEM-organoids developed chemotherapy resistance. Our research provides insights into advanced organoid technology through native matrix hydrogels.
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Affiliation(s)
- Haonan Song
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Haoyuan Jiang
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Weichu Hu
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yan Hai
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yihuan Cai
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Hu Li
- The First Affiliated Hospital, Jinan University, Guangzhou 510280, China
| | - Yuru Liao
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yi Huang
- Department of Gynecology, The Sixth Affiliated Hospital, South China University of Technology, Foshan 528200, China
| | - Xiaogang Lv
- Department of Gynecologic Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou 510030, China
| | - Yefei Zhang
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jiping Zhang
- Department of Gynecology, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, China
| | - Yan Huang
- Second Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Xiaomei Liang
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Hao Huang
- Department of Gynecology, The Sixth Affiliated Hospital, South China University of Technology, Foshan 528200, China
| | - Xinhua Lin
- Greater Bay Area Institute of Precision Medicine, Guangzhou 510280, China
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University Shanghai, Shanghai 200438, China
| | - Yifeng Wang
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Xiao Yi
- Department of Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Greater Bay Area Institute of Precision Medicine, Guangzhou 510280, China
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Dutta S, Ganguly A, Ghosh Roy S. An Overview of the Unfolded Protein Response (UPR) and Autophagy Pathways in Human Viral Oncogenesis. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2024; 386:81-131. [PMID: 38782502 DOI: 10.1016/bs.ircmb.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Autophagy and Unfolded Protein Response (UPR) can be regarded as the safe keepers of cells exposed to intense stress. Autophagy maintains cellular homeostasis, ensuring the removal of foreign particles and misfolded macromolecules from the cytoplasm and facilitating the return of the building blocks into the system. On the other hand, UPR serves as a shock response to prolonged stress, especially Endoplasmic Reticulum Stress (ERS), which also includes the accumulation of misfolded proteins in the ER. Since one of the many effects of viral infection on the host cell machinery is the hijacking of the host translational system, which leaves in its wake a plethora of misfolded proteins in the ER, it is perhaps not surprising that UPR and autophagy are common occurrences in infected cells, tissues, and patient samples. In this book chapter, we try to emphasize how UPR, and autophagy are significant in infections caused by six major oncolytic viruses-Epstein-Barr (EBV), Human Papilloma Virus (HPV), Human Immunodeficiency Virus (HIV), Human Herpesvirus-8 (HHV-8), Human T-cell Lymphotropic Virus (HTLV-1), and Hepatitis B Virus (HBV). Here, we document how whole-virus infection or overexpression of individual viral proteins in vitro and in vivo models can regulate the different branches of UPR and the various stages of macro autophagy. As is true with other viral infections, the relationship is complicated because the same virus (or the viral protein) exerts different effects on UPR and Autophagy. The nature of this response is determined by the cell types, or in some cases, the presence of diverse extracellular stimuli. The vice versa is equally valid, i.e., UPR and autophagy exhibit both anti-tumor and pro-tumor properties based on the cell type and other factors like concentrations of different metabolites. Thus, we have tried to coherently summarize the existing knowledge, the crux of which can hopefully be harnessed to design vaccines and therapies targeted at viral carcinogenesis.
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Affiliation(s)
- Shovan Dutta
- Center for Immunotherapy & Precision Immuno-Oncology (CITI), Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Anirban Ganguly
- Department of Biochemistry, All India Institute of Medical Sciences, Deoghar, Jharkhand, India
| | - Sounak Ghosh Roy
- Henry M Jackson for the Advancement of Military Medicine, Naval Medical Research Command, Silver Spring, MD, United States.
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Wang X, Wang T, Jiang X, Ruan Y, Wang J, Qi C. The potential mechanism of Guizhi Fuling Wan effect in the treatment of cervical squamous cell carcinoma: A bioinformatics analysis investigation. Medicine (Baltimore) 2024; 103:e37153. [PMID: 38306566 PMCID: PMC10843305 DOI: 10.1097/md.0000000000037153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/11/2024] [Indexed: 02/04/2024] Open
Abstract
As a global malignancy with high mortality rate, targeted drug development for Uterine Cervical Neoplasms is an important direction. The traditional formula Guizhi Fuling Wan (GFW) is widely used in gynecological diseases. However, its potential mechanism of action remains to be discovered. We retrieved GFW and cervical squamous cell carcinoma (CSCC) targets from public databases. The protein-protein interaction network was obtained by string computational analysis and imported Cytoscape_v3.9.0 to obtain the core network and the top 10 Hub genes. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes were used for enrichment analysis of the core network, and then molecular docking to verify whether the selected signaling pathway binds well to the core node. Finally, clinical prognostic analysis and expression differences of Hub genes were validated using the Cancer Genome Atlas database and R language. Our search yielded 152 common targets for GFW and CSCC. The interleukin-17 signaling pathway, tumor necrosis factor signaling pathway, and Toll-like signaling pathway were then selected for further molecular docking from the hub genes enrichment analysis results, which showed good binding. Among the Hub genes, JUN, VEGFA, IL1B, and EGF had a poor prognosis for CSCC. In conclusion, this study illustrates that GFW can have adjuvant therapeutic effects on CSCC through multiple targets and multiple pathways, providing a basis for further research.
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Affiliation(s)
- Xiaoxiang Wang
- The Third Clinical Medical Collage, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tianyue Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xinyu Jiang
- The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yanmin Ruan
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiamin Wang
- The Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Caixia Qi
- Department of Gynecology and Obstetrics, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
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Guldenpfennig C, Teixeiro E, Daniels M. NF-kB's contribution to B cell fate decisions. Front Immunol 2023; 14:1214095. [PMID: 37533858 PMCID: PMC10391175 DOI: 10.3389/fimmu.2023.1214095] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023] Open
Abstract
NF-κB signaling is essential to an effective innate and adaptive immune response. Many immune-specific functional and developmental outcomes depend in large on NF-κB. The formidable task of sorting out the mechanisms behind the regulation and outcome of NF-κB signaling remains an important area of immunology research. Here we briefly discuss the role of NF-κB in regulating cell fate decisions at various times in the path of B cell development, activation, and the generation of long-term humoral immunity.
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Affiliation(s)
- Caitlyn Guldenpfennig
- Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, United States
- NextGen Precision Health, University of Missouri, Columbia, MO, United States
| | - Emma Teixeiro
- Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, United States
- NextGen Precision Health, University of Missouri, Columbia, MO, United States
| | - Mark Daniels
- Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, United States
- NextGen Precision Health, University of Missouri, Columbia, MO, United States
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Akbarpour Arsanjani A, Abuei H, Behzad-Behbahani A, Bagheri Z, Arabsolghar R, Farhadi A. Activating transcription factor 3 inhibits NF‑κB p65 signaling pathway and mediates apoptosis and cell cycle arrest in cervical cancer cells. Infect Agent Cancer 2022; 17:62. [PMID: 36522783 PMCID: PMC9753250 DOI: 10.1186/s13027-022-00475-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND As a novel tumor suppressor mediator, activating transcription factor 3 (ATF3) has recently aroused an interest in its possible therapeutic applications in various cancers. In this study, we evaluated the effect of ATF3 overexpression on the cellular level of nuclear factor kappa B (NF-κB) in human papillomavirus (HPV)-infected Ca Ski cells. Further, we examined whether ATF3 could mediate cell cycle arrest and alter the apoptosis level of Ca Ski cells. METHODS The biological behavior of Ca Ski cells was evaluated prior and subsequent to the overexpression of ATF3 by MTT assay, fluorescence microscopy, cell cycle and annexin V/PI flow cytometric analysis. The effect of ectopic ATF3 expression on the cellular level of NF-κB in HPV-positive cells was evaluated by western blotting assay. RESULTS The overexpression of ATF3 in Ca Ski cells led to significant apoptosis and cell cycle arrest in the G1 phase. Western blotting assay revealed a discernible reduction of NF-κB p65 level in cervical cancer cells. CONCLUSION ATF3 acts as a tumor suppressor factor in HPV16-infected Ca Ski cells and exerts anti-cancer effects on HPV16-related cervical cancer cells potentially by hindering cell growth and inducing cell cycle arrest through the down-regulation of NF-κB. Our results suggest that ATF3 induction or NF-κB suppression may be useful targets for HPV16-related cervical cancer prevention and treatment.
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Affiliation(s)
- Amirhossein Akbarpour Arsanjani
- grid.412571.40000 0000 8819 4698Division of Medical Biotechnology, Department of Medical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Haniyeh Abuei
- grid.412571.40000 0000 8819 4698Division of Medical Biotechnology, Department of Medical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Behzad-Behbahani
- grid.412571.40000 0000 8819 4698Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Bagheri
- grid.412571.40000 0000 8819 4698Division of Medical Biotechnology, Department of Medical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Rita Arabsolghar
- grid.412571.40000 0000 8819 4698Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Farhadi
- grid.412571.40000 0000 8819 4698Division of Medical Biotechnology, Department of Medical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran ,grid.412571.40000 0000 8819 4698Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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He H, Zheng C, Tang Y. Overexpression of SMC4 predicts a poor prognosis in cervical cancer and facilitates cancer cell malignancy phenotype by activating NF-κB pathway. Hum Cell 2021; 34:1888-1898. [PMID: 34480271 DOI: 10.1007/s13577-021-00603-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 08/21/2021] [Indexed: 10/20/2022]
Abstract
Cervical cancer is one of the leading female malignancy tumors worldwide. Structural maintenance of chromosomes 4 (SMC4), a member of the SMC family, is associated with cancer pathogenesis and progression. However, the role of SMC4 in cervical cancer is still unclear. In the study, SMC4 was increased in cervical cancer tissues compared with adjacent normal tissues. The SMC4 knockdown and overexpression were performed in cervical cancer cells. SMC4 knockdown inhibited cell proliferation, colony formation, cell migration and invasion, and suppressed epithelial-mesenchymal transition (EMT). Conversely, SMC4 overexpression exerted opposite effects. Moreover, SMC4 knockdown down-regulated stem cell markers, reduced the capacity of spheroid formation and inactivated NF-κB pathway. SMC4 overexpression contributed to stem cell markers, and stimulated spheroid formation and NF-κB pathway activation. Additionally, BAY11-7082 (an NF-κB inhibitor) alleviated the SMC4-mediated the effects in cervical cancer cells. In conclusion, these findings demonstrated that SMC4 overexpression facilitated the development of cervical cancer cells by activating NF-κBpathway, which provides a new therapeutic target for patients with cervical cancer.
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Affiliation(s)
- Hui He
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, No. 16, Baita West Road, Gusu District, Suzhou, 215000, Jiangsu, China.
| | - Cui Zheng
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, No. 16, Baita West Road, Gusu District, Suzhou, 215000, Jiangsu, China
| | - Yunxian Tang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, No. 16, Baita West Road, Gusu District, Suzhou, 215000, Jiangsu, China
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Chen M, Liang X, Liang Z, Zhao L. Study on the effect and mechanism of NFKBIA on cervical cancer progress in vitro and in vivo. J Obstet Gynaecol Res 2021; 47:3931-3942. [PMID: 34342105 DOI: 10.1111/jog.14947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 05/31/2021] [Accepted: 07/07/2021] [Indexed: 11/30/2022]
Abstract
AIM NFKBIA is frequently encountered. However, its expression and relevance of the proliferation, invasion, and migration in human cervical cancer (CC) remain unclear. The role and novel mechanism of NFKBIA in CC progression were investigated in this study. METHODS We analyzed the expression of NFKBIA in CC and adjacent normal tissues and explored the proliferation, migration, and invasion of HeLa cells by treating with either wild-type NFKBIA plasmid or NFKBIA siRNA. Effect of NFKBIA on the epithelial-mesenchymal transition (EMT) and the β-catenin-mediated transcription of target genes were evaluated subsequently. RESULTS NFKBIA expression was lower in CC tissues than that of adjacent tissues. An obvious dysregulation of NFKBIA overexpression was revealed in CC cell proliferation, invasion, and migration, which differed from the effect of knockdown NFKBIA. NFKBIA overexpression facilitated the expression of both phosphorylated β-catenin and E-cadherin protein. It inhibited the expression of vimentin, TWIST, as well as downstream targets of β-catenin including c-MYC, TCF-4 and MMP14. Conversely, NFKBIA silencing elevated the expression of c-MYC, TCF-4, and MMP14, and promoted the EMT in HeLa cells. Both endogenous and exogenous NFKBIA interacted with β-catenin. Moreover, β-catenin overexpression stemmed effects of NFKBIA on the proliferation, migration, and invasion of HeLa cells. By overexpressing NFKBIA in vivo, the volume and size of tumors were notably decreased, while no obvious alteration was found in mice body weight. CONCLUSION By inhibiting β-catenin-mediated transcription, NFKBIA functioning as a tumor suppressor might be introduced as a novel anti-metastatic agent for the treatment of targeted CC.
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Affiliation(s)
- Mengyue Chen
- Department of Gynaecology, The First People's Hospital of Chongqing Liang Jiang New Area, Chongqing, China
| | - Xiaolong Liang
- Department of Obstetrics & Gynaecology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Zhiqing Liang
- Department of Obstetrics & Gynaecology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Limei Zhao
- Department of Gynaecology, The First People's Hospital of Chongqing Liang Jiang New Area, Chongqing, China
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Shao Z, Wang T, Zhang M, Jiang Z, Huang S, Zeng P. IUSMMT: Survival mediation analysis of gene expression with multiple DNA methylation exposures and its application to cancers of TCGA. PLoS Comput Biol 2021; 17:e1009250. [PMID: 34464378 PMCID: PMC8437300 DOI: 10.1371/journal.pcbi.1009250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 09/13/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023] Open
Abstract
Effective and powerful survival mediation models are currently lacking. To partly fill such knowledge gap, we particularly focus on the mediation analysis that includes multiple DNA methylations acting as exposures, one gene expression as the mediator and one survival time as the outcome. We proposed IUSMMT (intersection-union survival mixture-adjusted mediation test) to effectively examine the existence of mediation effect by fitting an empirical three-component mixture null distribution. With extensive simulation studies, we demonstrated the advantage of IUSMMT over existing methods. We applied IUSMMT to ten TCGA cancers and identified multiple genes that exhibited mediating effects. We further revealed that most of the identified regions, in which genes behaved as active mediators, were cancer type-specific and exhibited a full mediation from DNA methylation CpG sites to the survival risk of various types of cancers. Overall, IUSMMT represents an effective and powerful alternative for survival mediation analysis; our results also provide new insights into the functional role of DNA methylation and gene expression in cancer progression/prognosis and demonstrate potential therapeutic targets for future clinical practice.
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Affiliation(s)
- Zhonghe Shao
- Department of Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ting Wang
- Department of Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Meng Zhang
- Department of Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhou Jiang
- Department of Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shuiping Huang
- Department of Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Center for Medical Statistics and Data Analysis, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Key Laboratory of Human Genetics and Environmental Medicine, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ping Zeng
- Department of Biostatistics, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Center for Medical Statistics and Data Analysis, Xuzhou Medical University, Xuzhou, Jiangsu, China
- Key Laboratory of Human Genetics and Environmental Medicine, Xuzhou Medical University, Xuzhou, Jiangsu, China
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Alameda JP, García-García VA, López S, Hernando A, Page A, Navarro M, Moreno-Maldonado R, Paramio JM, Ramírez Á, García-Fernández RA, Casanova ML. CYLD Inhibits the Development of Skin Squamous Cell Tumors in Immunocompetent Mice. Int J Mol Sci 2021; 22:6736. [PMID: 34201751 PMCID: PMC8268443 DOI: 10.3390/ijms22136736] [Citation(s) in RCA: 3] [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: 06/07/2021] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 11/17/2022] Open
Abstract
Cylindromatosis (CYLD) is a deubiquitinase (DUB) enzyme that was initially characterized as a tumor suppressor of adnexal skin tumors in patients with CYLD syndrome. Later, it was also shown that the expression of functionally inactive mutated forms of CYLD promoted tumor development and progression of non-melanoma skin cancer (NMSC). However, the ability of wild-type CYLD to inhibit skin tumorigenesis in vivo in immunocompetent mice has not been proved. Herein, we generated transgenic mice that express the wild type form of CYLD under the control of the keratin 5 (K5) promoter (K5-CYLDwt mice) and analyzed the skin properties of these transgenic mice by WB and immunohistochemistry, studied the survival and proliferating characteristics of primary keratinocytes, and performed chemical skin carcinogenesis experiments. As a result, we found a reduced activation of the nuclear factor kappa B (NF-κB) pathway in the skin of K5-CYLDwt mice in response to tumor necrosis factor-α (TNF-α); accordingly, when subjected to insults, K5-CYLDwt keratinocytes are prone to apoptosis and are protected from excessive hyperproliferation. Skin carcinogenesis assays showed inhibition of tumor development in K5-CYLDwt mice. As a mechanism of this tumor suppressor activity, we found that a moderate increase in CYLD expression levels reduced NF-κB activation, which favored the differentiation of tumor epidermal cells and inhibited its proliferation; moreover, it decreased tumor angiogenesis and inflammation. Altogether, our results suggest that increased levels of CYLD may be useful for anti-skin cancer therapy.
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Affiliation(s)
- Josefa P. Alameda
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Verónica A. García-García
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
| | - Silvia López
- Department of Animal Medicine and Surgery, Facultad de Veterinaria, UCM, 28040 Madrid, Spain; (S.L.); (R.A.G.-F.)
| | - Ana Hernando
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Bionomous Sàrl, PFL Innovation Park, Bâtiment, FCH-1015 Lausanne, Switzerland
| | - Angustias Page
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Manuel Navarro
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Rodolfo Moreno-Maldonado
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Bio-innova Consulting, 28049 Madrid, Spain
| | - Jesús M. Paramio
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Ángel Ramírez
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Rosa A. García-Fernández
- Department of Animal Medicine and Surgery, Facultad de Veterinaria, UCM, 28040 Madrid, Spain; (S.L.); (R.A.G.-F.)
| | - María Llanos Casanova
- Molecular and Translational Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain; (J.P.A.); (V.A.G.-G.); (A.H.); (A.P.); (M.N.); (R.M.-M.); (J.M.P.); (Á.R.)
- Biomedical Research Institute I+12, 12 de Octubre University Hospital, 28041 Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
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Xu G, Zhao H, Xu J, Zhang Y, Qi X, Shi A. Hard antler extract inhibits invasion and epithelial-mesenchymal transition of triple-negative and Her-2 + breast cancer cells by attenuating nuclear factor-κB signaling. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113705. [PMID: 33346025 DOI: 10.1016/j.jep.2020.113705] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/24/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hard antler extract (HAE) is a traditional Chinese medicine and has potent antitumor, antioxidative, anti-inflammatory, and immunomodulatory activities. Previous studies have demonstrated that HAE can inhibit human prostate cancer metastasis and murine breast cancer proliferation. However, the effect of HAE on human breast cancer cells has not been clarified. AIM OF THE STUDY To investigate the effects and underlying mechanism of HAE on self-renewal of stem-like cells and spontaneous and transforming growth factor (TGF)-β1-enhanced wound healing, invasion and epithelial-mesenchymal transition (EMT) in breast cancer cells. METHODS HAE was prepared from sika deer by sequential enzymatic digestions and the active compounds were determined by HPLC. The effects of HAE on the viability, mammosphere formation, wound healing and invasion of MDA-MB-231 and SK-BR3 cells were determined. The impact of HAE treatment on spontaneous and TGF-β1-promoted EMT and the nuclear factor (NF)-κB signaling in breast cancer cells was examined by quantitative RT-PCR and western blotting. RESULTS Treatment with HAE at varying concentrations did not change the viability of breast cancer cells. However, HAE at 0.25 or 0.5 mg/mL significantly reduced the number and size of formed mammospheres, and inhibited spontaneous and TGF-β1-enhanced wound healing, invasion and EMT in MDA-MB-231 and SK-BR3 cells in a dose-dependent manner. TGF-β1 treatment significantly decreased IκBα expression and increased NF-kBp65 phosphorylation in breast cancer cells, indicating that TGF-β1 enhanced NF-κB signaling. In contrast, HAE treatment attenuated the spontaneous and TGF-β1-enhanced NF-κB signaling in breast cancer cells. CONCLUSION Our data indicated that HAE inhibited the self-renewal of stem-like cells and spontaneous and TGF-β1-enhanced wound healing, invasion and EMT in breast cancer cells by attenuating the NF-κB signaling in vitro.
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Affiliation(s)
- Gege Xu
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, 130021, China
| | - Haiping Zhao
- Institute of Special Animal and Plant Sciences of CAAS, Changchun, 130112, China
| | - Jingdong Xu
- Biology Major, the University of Texas at Austin, Austin, TX, 78705, USA
| | - Yu Zhang
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, 130021, China
| | - Xiaoyan Qi
- Institute of Special Animal and Plant Sciences of CAAS, Changchun, 130112, China
| | - Aiping Shi
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, 130021, China.
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11
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Huo X, Sun H, Cao D, Yang J, Peng P, Kong L, Chen F, Shen K, Li S. Evaluation of Cervical High-Grade Squamous Intraepithelial Lesions-Correlated Markers as Triage Strategy for Colposcopy After Co-Testing. Onco Targets Ther 2021; 14:2075-2084. [PMID: 33776454 PMCID: PMC7989978 DOI: 10.2147/ott.s300269] [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: 01/10/2021] [Accepted: 03/08/2021] [Indexed: 12/09/2022] Open
Abstract
Background Colposcopy was referred in cases with severe abnormalities in co-testing. Although p16/Ki67 dual staining reduced the referral rate, its sensitivity and specificity need to be enhanced. Methods The expressions of p16, Ki-67, SMAD3, YAP1, RELA were evaluated in the colposcopy referral population. The inclusion criteria included 30–60 years and diagnosed with HPV16/18-positive, other HR-HPV-positive with ASCUS, LSIL, AGC (atypical glandular cell) in co-testing. Colposcopies, endocervical curettages of cervical biopsies were also collected. Cases were excluded if there were no biopsies, if the interval between a cervical screening test and biopsies was more than 6 months, or if insufficient tissue was available as a formalin-fixed paraffin-embedded block. The pathology was independently reviewed by two pathologists. Discrepant interpretations were adjudicated by a third pathologist. Results In total, 1194 of 1273 cases who were referred to colposcopy were evaluated in the present study. The sensitivity and specificity of p16+ combined with Ki-67+ for predicting CIN2+ were 62.1% and 89.5%, respectively. p16+ combined with YAP1+ and/or RELA+ provided a sensitivity and specificity of 70.9% and 89.5%, respectively, while 72.8% and 86.4% were achieved by p16+ combined with YAP1+ and/or SMAD3+ and/or RELA+. In HPV16/18+ and LSIL subgroups, the sensitivity and specificity of p16+ combined with Ki-67+ for predicting CIN2+ were 67.7% and 87.6%, respectively, for the former group and 58.6%, 88.8%, respectively, for the latter group. p16+, YAP1+/RELA+ showed a better performance for predicting CIN2+ with a better sensitivity and considerable specificity in the other HPV+ combined with ASCUS group than were achieved by p16+ combined with Ki-67+. RELA+ and the combination of p16 and RELA/YAP1 also provided the Max AUC area. Conclusion Our study shows that RELA and the combination of p16 and RELA/YAP1 achieved better sensitivity and specificity for detecting morphologically CIN2+ lesions.
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Affiliation(s)
- Xiao Huo
- Center of Basic Medical Research, Peking University Third Hospital Institute of Medical Innovation and Research, Beijing, People's Republic of China
| | - Hengzi Sun
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China.,Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Dongyan Cao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jiaxin Yang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Peng Peng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Linghua Kong
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Fei Chen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Shuhong Li
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
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Silva RCDO, da Silva Júnior AHP, Gurgel APAD, Barros Junior MR, Santos DL, de Lima RDCP, Batista MVA, Pena LJ, Chagas BS, Freitas AC. Structural and functional impacts of E5 genetic variants of human papillomavirus type 31. Virus Res 2020; 290:198143. [PMID: 32871208 DOI: 10.1016/j.virusres.2020.198143] [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: 06/25/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 11/29/2022]
Abstract
Persistent infections caused by high-risk human papillomavirus (HR-HPV) are important, for the development of cervical lesions, but environmental and genetic factors are also related in the process of carcinogenesis. Among the genetic factors, the genetic variants of HR-HPV appear to be related to the risk of persistent infections. Therefore, the present study investigates variants of HPV31 E5 oncogene in cervical scraping samples from Brazilian women to assess their functional and structural effects, in order to identify possible repercussions of these variants on the infectious and carcinogenic process. Our results detected nucleotide changes previously described in the HPV31 E5 oncogene, which may play a critical role in the development of cancer due to its ability to promote cell proliferation and signal transmission. In our study, the interaction percentage of the 31E5 sequence generated by the Immune Epitope Server database and the Analysis Resource (IEDB) allowed us to include possible immunogenic epitopes with the MHC-I and MHC-II molecules, which may represent a possible relationship between protein suppression of the immune system. In the structural analysis of the HPV31 E5 oncoprotein, the N5D, I48 V, P56A, F80I and V64I polymorphisms can be found inserted within transmembrane regions. The P56A mutation has been predicted to be highly stabilizing and, therefore, can cause a change in protein function. Regarding the interaction of the E5 protein from HPV31 with the signaling of NF-kB pathway, we observed that in all variants of the E5 gene from HPV-31, the activity of the NF-kB pathway was increased compared to the prototype. Our study contributes to a more refined design of studies with the E5 gene from HPV31 and provides important data for a better understanding of how variants can be distinguished under their clinical consequences.
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Affiliation(s)
- Ruany C de O Silva
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, Brazil
| | | | - Ana P A D Gurgel
- Department of Engineering and Environment, Federal University of Paraiba, Paraiba, Brazil
| | - Marconi R Barros Junior
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, Brazil
| | - Daffany L Santos
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, Brazil
| | - Rita de C P de Lima
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, Brazil
| | - Marcus V A Batista
- Laboratory of Molecular Genetics and Biotechnology (GMBio), Department of Biology, Federal University of Sergipe, Sergipe, Brazil
| | - Lindomar J Pena
- Department of Virology and Experimental Therapy, Research Center Aggeu Magalhães, Oswaldo Cruz Foundation, Pernambuco, Brazil
| | - Bárbara S Chagas
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, Brazil
| | - Antonio C Freitas
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, Brazil.
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Prognostic Significance of Nuclear Factor Kappa B Expression in Locally Advanced Cervical Cancer Patients Treated Definitively With Concurrent Chemoradiation. Am J Clin Oncol 2020; 43:47-51. [PMID: 31693509 DOI: 10.1097/coc.0000000000000626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Nuclear factor kappa B (NFkB) is a transcription factor shown to confer treatment resistance in tumors. A previous report suggested an association between pretreatment NFkB and poorer outcomes for cervical cancer patients treated with chemoradiation therapy (CRT). We aimed to validate their findings in a larger patient cohort. MATERIALS AND METHODS This Institutional Review Board approved study included patients with locally advanced cervical cancer patients treated with CRT. Evaluation of both nuclear and cytoplasmic immunoreactivity for NFkB was scored semiquantitatively by 3 pathologists. Cytoplasmic positivity incorporated both the intensity and percentage of immunoreactivity in invasive carcinoma (H-score), whereas nuclear positivity was assessed by percentage of positive cells. Outcomes were stratified by NFkB overexpression and tumor characteristics. Overall survival (OS), progression-free survival (PFS), distant metastases-free survival (DMFS), and local regional control (LC) were obtained using Kaplan-Meier and differences between groups were evaluated by the log-rank test. Hazard ratios were obtained using Cox regression for both univariate and multivariate analyses. RESULTS The mean age was 51 years old and most (78.57%) had locally advanced disease. Five-year OS, PFS, LC, and DMFS in the entire cohort were 57.18% (confidence interval [CI], 34.06%-74.82%), 48.07% (CI, 25.50%-67.52%), 72.11% (CI, 49.96%-85.73%), and 62.85% (CI, 36.33%-80.82%), respectively. There was no significant association between NFkB expression (H-index ≥180) and 3-year and 5-year OS (P-value=0.34), PFS (P-value=0.21), LC (P-value=0.86), or DMFS (P-value=0.18). CONCLUSIONS Our study demonstrated that cytoplasmic NFkB-p65 expression (H-index ≥180) was associated with a nonstatistically significant trend toward poor clinical outcomes in locally advanced cervical cancer patients treated definitively with CRT.
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14
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Venkatachalam K, Vinayagam R, Arokia Vijaya Anand M, Isa NM, Ponnaiyan R. Biochemical and molecular aspects of 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis: a review. Toxicol Res (Camb) 2020; 9:2-18. [PMID: 32440334 DOI: 10.1093/toxres/tfaa004] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 01/20/2020] [Accepted: 02/12/2020] [Indexed: 02/07/2023] Open
Abstract
1,2-dimethylhydrazine (DMH) is a member in the class of hydrazines, strong DNA alkylating agent, naturally present in cycads. DMH is widely used as a carcinogen to induce colon cancer in animal models. Exploration of DMH-induced colon carcinogenesis in rodent models provides the knowledge to perceive the biochemical, molecular, and histological mechanisms of different stages of colon carcinogenesis. The procarcinogen DMH, after a series of metabolic reactions, finally reaches the colon, there produces the ultimate carcinogen and reactive oxygen species (ROS), which further alkylate the DNA and initiate the development of colon carcinogenesis. The preneolpastic lesions and histopathological observations of DMH-induced colon tumors may provide typical understanding about the disease in rodents and humans. In addition, this review discusses about the action of biotransformation and antioxidant enzymes involved in DMH intoxication. This understanding is essential to accurately identify and interpret alterations that occur in the colonic mucosa when evaluating natural or pharmacological compounds in DMH-induced animal colon carcinogenesis.
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Affiliation(s)
- Karthikkumar Venkatachalam
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, UAE University, Al Ain-17666, United Arab Emirates
| | - Ramachandran Vinayagam
- Department of Biotechnology, Thiruvalluvar University, Serkadu, Vellore, Tamilnadu 632 115, India
| | | | - Nurulfiza Mat Isa
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, 43400 Seri Kembangan, Selangor, Malaysia
| | - Rajasekar Ponnaiyan
- Department of Zoology, Jamal Mohamed College, Tiruchirappalli, Tamil Nadu 620020, India
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15
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Nahand JS, Moghoofei M, Salmaninejad A, Bahmanpour Z, Karimzadeh M, Nasiri M, Mirzaei HR, Pourhanifeh MH, Bokharaei‐Salim F, Mirzaei H, Hamblin MR. Pathogenic role of exosomes and microRNAs in HPV-mediated inflammation and cervical cancer: A review. Int J Cancer 2020; 146:305-320. [PMID: 31566705 PMCID: PMC6999596 DOI: 10.1002/ijc.32688] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/02/2019] [Accepted: 09/10/2019] [Indexed: 12/24/2022]
Abstract
Cervical cancer (CC) is the fourth most common cause of cancer death in women. The most important risk factor for the development of CC is cervical infection with human papilloma virus (HPV). Inflammation is a protective strategy that is triggered by the host against pathogens such as viral infections that acts rapidly to activate the innate immune response. Inflammation is beneficial if it is brief and well controlled; however, if the inflammation is excessive or it becomes of chronic duration, it can produce detrimental effects. HPV proteins are involved, both directly and indirectly, in the development of chronic inflammation, which is a causal factor in the development of CC. However, other factors may also have a potential role in stimulating chronic inflammation. MicroRNAs (miRNAs) (a class of noncoding RNAs) are strong regulators of gene expression. They have emerged as key players in several biological processes, including inflammatory pathways. Abnormal expression of miRNAs may be linked to the induction of inflammation that occurs in CC. Exosomes are a subset of extracellular vesicles shed by almost all types of cells, which can function as cargo transfer vehicles. Exosomes contain proteins and genetic material (including miRNAs) derived from their parent cells and can potentially affect recipient cells. Exosomes have recently been recognized to be involved in inflammatory processes and can also affect the immune response. In this review, we discuss the role of HPV proteins, miRNAs and exosomes in the inflammation associated with CC.
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Affiliation(s)
- Javid Sadri Nahand
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Moghoofei
- Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Arash Salmaninejad
- Drug Applied Research Center, Student Research Committee, Tabriz University of Medical Science, Tabriz, Iran
- Department of Medical Genetics, Faculty of Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zahra Bahmanpour
- Department of Medical Genetics, Faculty of Medicine, Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Karimzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mitra Nasiri
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Pourhanifeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Farah Bokharaei‐Salim
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, 40 Blossom Street, Boston, MA, 02114, USA
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TCA Cycle Rewiring as Emerging Metabolic Signature of Hepatocellular Carcinoma. Cancers (Basel) 2019; 12:cancers12010068. [PMID: 31881713 PMCID: PMC7016696 DOI: 10.3390/cancers12010068] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 12/27/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a common malignancy. Despite progress in treatment, HCC is still one of the most lethal cancers. Therefore, deepening molecular mechanisms underlying HCC pathogenesis and development is required to uncover new therapeutic strategies. Metabolic reprogramming is emerging as a critical player in promoting tumor survival and proliferation to sustain increased metabolic needs of cancer cells. Among the metabolic pathways, the tricarboxylic acid (TCA) cycle is a primary route for bioenergetic, biosynthetic, and redox balance requirements of cells. In recent years, a large amount of evidence has highlighted the relevance of the TCA cycle rewiring in a variety of cancers. Indeed, aberrant gene expression of several key enzymes and changes in levels of critical metabolites have been observed in many solid human tumors. In this review, we summarize the role of the TCA cycle rewiring in HCC by reporting gene expression and activity dysregulation of enzymes relating not only to the TCA cycle but also to glutamine metabolism, malate/aspartate, and citrate/pyruvate shuttles. Regarding the transcriptional regulation, we focus on the link between NF-κB-HIF1 transcriptional factors and TCA cycle reprogramming. Finally, the potential of metabolic targets for new HCC treatments has been explored.
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17
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Modulation of Redox Signaling in Chronic Diseases and Regenerative Medicine. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6091587. [PMID: 31178971 PMCID: PMC6507258 DOI: 10.1155/2019/6091587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 01/30/2019] [Indexed: 11/18/2022]
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18
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Vizza D, Lupinacci S, Toteda G, Puoci F, Ortensia I P, De Bartolo A, Lofaro D, Scrivano L, Bonofiglio R, La Russa A, Bonofiglio M, Perri A. An Olive Leaf Extract Rich in Polyphenols Promotes Apoptosis in Cervical Cancer Cells by Upregulating p21 Cip/WAF1 Gene Expression. Nutr Cancer 2019; 71:320-333. [PMID: 30661406 DOI: 10.1080/01635581.2018.1559934] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Most of the common drugs used to treat the cervical cancer, which main etiological factor is the HPV infection, cause side effects and intrinsic/acquired resistance to chemotherapy. In this study we investigated whether an olive leaf extract (OLE), rich in polyphenols, was able to exert anti-tumor effects in human cervical cancer cells (HeLa). MTT assay results showed a reduction of HeLa cells viability OLE-induced, concomitantly with a gene and protein down-regulation of Cyclin-D1 and an up-regulation of p21, triggering intrinsic apoptosis. OLE reduced NFkB nuclear translocation, which constitutive activation, stimulated by HPV-oncoproteins, promotes cancer progression and functional studies revealed that OLE activated p21Cip/WAF1 in a transcriptional-dependent-manner, by reducing the nuclear recruitment of NFkB on its responsive elements. Furthermore, OLE treatment counteracted epithelial-to-mesenchymal-transition and inhibited anchorage-dependent and -independent cell growth EGF-induced. Finally, MTT assay results revealed that OLE plus Cisplatin strengthened the reduction of cells viability Cisplatin-induced, as OLE inhibited NFkB, AkT and MAPK pathways, all involved in Cisplatin chemoresistance. In conclusion, we demonstrated that in HeLa cells OLE exerts pro-apoptotic effects, elucidating the molecular mechanism and that OLE could mitigate Cisplatin chemoresistance. Further studies are needed to explore the potential coadiuvant use of OLE for cervical cancer treatment.
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Affiliation(s)
- Donatella Vizza
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Simona Lupinacci
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Giuseppina Toteda
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Francesco Puoci
- b Department of Pharmacy Health and Nutritional Sciences , University of Calabria , Cosenza , Italy
| | - Parisi Ortensia I
- b Department of Pharmacy Health and Nutritional Sciences , University of Calabria , Cosenza , Italy
| | - Anna De Bartolo
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Danilo Lofaro
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Luca Scrivano
- b Department of Pharmacy Health and Nutritional Sciences , University of Calabria , Cosenza , Italy
| | - Renzo Bonofiglio
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Antonella La Russa
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Martina Bonofiglio
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
| | - Anna Perri
- a Kidney and Transplantation Research Center, Annunziata Hospital , Cosenza , Italy
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A Novel Small Peptide Inhibitor of NF κB, RH10, Blocks Oxidative Stress-Dependent Phenotypes in Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5801807. [PMID: 30524659 PMCID: PMC6247396 DOI: 10.1155/2018/5801807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 09/04/2018] [Indexed: 12/26/2022]
Abstract
Background The RH domain of GRK5 is an effective modulator of cancer growth through the inhibition of NFκB activity. The aim of this study was to identify the minimum effective sequence of RH that is still able to inhibit tumor growth and could be used as a peptide-based drug for therapy. Methods Starting from the RH sequence, small peptides were cloned and tested in KAT-4 cells. The effects on NFκB signaling and its dependent phenotypes were evaluated by Western blot, TUNEL assay, proliferation assay, and angiogenesis in vitro. In vivo experiments were performed in KAT-4 xenografts in Balb/c nude mice. Results A minimum RH ten amino acids long sequence (RH10) was able to interact with IκB, to increase IκB levels, to induce apoptosis, to inhibit KAT4-cell proliferation, NFκB activation, ROS production, and angiogenesis in vitro. In vivo, the peptide inhibited tumor growth in a dose-dependent manner. We also tested its effects in combination with chemotherapeutic drugs and radiotherapy. RH10 ameliorated the antitumor responses to cisplatin, doxorubicin, and ionizing radiation. Conclusion Our data propose RH10 as a potential peptide-based drug to use for cancer treatment both alone or in combination with anticancer therapies.
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20
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Long L, Pang XX, Lei F, Zhang JS, Wang W, Liao LD, Xu XE, He JZ, Wu JY, Wu ZY, Wang LD, Lin DC, Li EM, Xu LY. SLC52A3 expression is activated by NF-κB p65/Rel-B and serves as a prognostic biomarker in esophageal cancer. Cell Mol Life Sci 2018; 75:2643-2661. [PMID: 29428966 PMCID: PMC6003972 DOI: 10.1007/s00018-018-2757-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 01/16/2018] [Accepted: 01/18/2018] [Indexed: 02/05/2023]
Abstract
The human riboflavin transporter-3 (encoded by SLC52A3) plays a prominent role in riboflavin absorption. Interestingly, abnormal expression patterns of SLC52A3 in multiple types of human cancers have been recently noted. However, the molecular mechanisms underlying its dysregulation remain unclear. In this study, we find that SLC52A3 has two transcript variants that differ in the transcriptional start site, and encode different proteins: SLC52A3a and SLC52A3b. Importantly, aberrant expressions of SLC52A3 are associated with stepwise development of esophageal squamous cell carcinoma (ESCC) as well as the survival rates of ESCC patients. Functionally, SLC52A3a, but not SLC52A3b, strongly promotes the proliferation and colony formation of ESCC cells. Furthermore, SLC52A3 5'-flanking regions contain NF-κB p65/Rel-B-binding sites, which are crucial for mediating SLC52A3 transcriptional activity in ESCC cells. Chromatin immunoprecipitation and electrophoretic mobility shift assay reveal that p65/Rel-B bind to 5'-flanking regions of SLC52A3. Accordingly, NF-κB signaling upregulates SLC52A3 transcription upon TNFα stimulation. Taken together, these results elucidate the mechanisms underlying SLC52A3 overexpression in ESCC. More importantly, our findings identify SLC52A3 as both a predictive and prognostic biomarker for this deadly cancer.
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Affiliation(s)
- Lin Long
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xiao-Xiao Pang
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Fei Lei
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Jia-Sheng Zhang
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Wei Wang
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Lian-Di Liao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xiu-E Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Jian-Zhong He
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Jian-Yi Wu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Zhi-Yong Wu
- Department of Oncology Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-Sen University, Shantou, China
| | - Li-Dong Wang
- Henan Key Laboratory for Esophageal Cancer Research, Department of Basic Oncology and Pathology at College of Medicine, The First and The Second Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan, China
| | - De-Chen Lin
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - En-Min Li
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, China.
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China.
| | - Li-Yan Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China.
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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21
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Kaltschmidt B, Greiner JFW, Kadhim HM, Kaltschmidt C. Subunit-Specific Role of NF-κB in Cancer. Biomedicines 2018; 6:E44. [PMID: 29673141 PMCID: PMC6027219 DOI: 10.3390/biomedicines6020044] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 02/07/2023] Open
Abstract
The transcription factor NF-κB is a key player in inflammation, cancer development, and progression. NF-κB stimulates cell proliferation, prevents apoptosis, and could promote tumor angiogenesis as well as metastasis. Extending the commonly accepted role of NF-κB in cancer formation and progression, different NF-κB subunits have been shown to be active and of particular importance in distinct types of cancer. Here, we summarize overexpression data of the NF-κB subunits RELA, RELB, and c-REL (referring to the v-REL, which is the oncogene of Reticuloendotheliosis virus strain T) as well as of their upstream kinase inhibitor, namely inhibitor of κB kinases (IKK), in different human cancers, assessed by database mining. These data argue against a universal mechanism of cancer-mediated activation of NF-κB, and suggest a much more elaborated mode of NF-κB regulation, indicating a tumor type-specific upregulation of the NF-κB subunits. We further discuss recent findings showing the diverse roles of NF-κB signaling in cancer development and metastasis in a subunit-specific manner, emphasizing their specific transcriptional activity and the role of autoregulation. While non-canonical NF-κB RELB signaling is described to be mostly present in hematological cancers, solid cancers reveal constitutive canonical NF-κB RELA or c-REL activity. Providing a linkage to cancer therapy, we discuss the recently described pivotal role of NF-κB c-REL in regulating cancer-targeting immune responses. In addition, current strategies and ongoing clinical trials are summarized, which utilize genome editing or drugs to inhibit the NF-κB subunits for cancer treatment.
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Affiliation(s)
- Barbara Kaltschmidt
- AG Molecular Neurobiology, University of Bielefeld, 33615 Bielefeld, Germany.
| | | | - Hussamadin M Kadhim
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany.
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22
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Lu HJ, Jin PY, Tang Y, Fan SH, Zhang ZF, Wang F, Wu DM, Lu J, Zheng YL. microRNA-136 inhibits proliferation and promotes apoptosis and radiosensitivity of cervical carcinoma through the NF-κB pathway by targeting E2F1. Life Sci 2018; 199:167-178. [DOI: 10.1016/j.lfs.2018.02.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 12/25/2022]
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23
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Tilborghs S, Corthouts J, Verhoeven Y, Arias D, Rolfo C, Trinh XB, van Dam PA. The role of Nuclear Factor-kappa B signaling in human cervical cancer. Crit Rev Oncol Hematol 2017; 120:141-150. [PMID: 29198328 DOI: 10.1016/j.critrevonc.2017.11.001] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/01/2017] [Indexed: 12/27/2022] Open
Abstract
Background The Nuclear Factor kappaB (NF-kB) family consists of transcription factors that play a complex and essential role in the regulation of immune responses and inflammation. NF-kB has recently generated considerable interest as it has been implicated in human cancer initiation, progression and resistance to treatment. In the present comprehensive review the different aspects of NF-kB signaling in the carcinogenesis of cancer of the uterine cervix are discussed. NF-kB functions as part of a network, which determines the pattern of its effects on the expression of several other genes (such as crosstalks with reactive oxygen species, p53, STAT3 and miRNAS) and thus its function. Activation of NF-kB triggered by a HPV infection is playing an important role in the innate and adaptive immune response of the host. The virus induces down regulation of NF-kB to liquidate the inhibitory activity for its replication triggered by the immune system leading a status of persistant HPV infection. During the progression to high grade intraepithelial neoplasia and cervical cancer NF-KB becomes constitutionally activated again. Mutations in NF-kB genes are rare in solid tumors but mutations of upstream signaling molecules such as RAS, EGFR, PGF, HER2 have been implicated in elevated NF-kB signaling. NF-kB can stimulate transcription of proliferation regulating genes (eg. cyclin D1 and c-myc), genes involved in metastasis, VEGF dependent angiogenesis and cell immortality by telomerase. NF-kB activation can also induce the expression of activation-induced cytodine deaminase (AID) and the APOBEC proteins, providing a mechanistic link between the NF-kB pathway and mutagenic characteristic of cervical cancer. Inhibition of NF-kB has the potential to be used to reverse resistance to radiotherapy and systemic anti-cancer medication, but currently no clinicaly active NF-kB targeting strategies are available.
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Affiliation(s)
- Sam Tilborghs
- Multidisciplinary Oncologic Centre Antwerp (MOCA) Antwerp University Hospital, Edegem, Belgium
| | - Jerome Corthouts
- Multidisciplinary Oncologic Centre Antwerp (MOCA) Antwerp University Hospital, Edegem, Belgium
| | - Yannick Verhoeven
- Multidisciplinary Oncologic Centre Antwerp (MOCA) Antwerp University Hospital, Edegem, Belgium
| | - David Arias
- Phase I - Early Clinical Trials Unit & Center for Oncological Research (CORE), Antwerp University, Belgium
| | - Christian Rolfo
- Multidisciplinary Oncologic Centre Antwerp (MOCA) Antwerp University Hospital, Edegem, Belgium; Phase I - Early Clinical Trials Unit & Center for Oncological Research (CORE), Antwerp University, Belgium
| | - Xuan Bich Trinh
- Multidisciplinary Oncologic Centre Antwerp (MOCA) Antwerp University Hospital, Edegem, Belgium; Gynecologic Oncology Unit, Antwerp University Hospital & Centre of Oncologic Research (CORE), Antwerp University, Belgium
| | - Peter A van Dam
- Multidisciplinary Oncologic Centre Antwerp (MOCA) Antwerp University Hospital, Edegem, Belgium; Gynecologic Oncology Unit, Antwerp University Hospital & Centre of Oncologic Research (CORE), Antwerp University, Belgium.
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24
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Chandrasekaran KS, Sathyanarayanan A, Karunagaran D. miR-214 activates TP53 but suppresses the expression of RELA, CTNNB1, and STAT3 in human cervical and colorectal cancer cells. Cell Biochem Funct 2017; 35:464-471. [PMID: 29023799 DOI: 10.1002/cbf.3304] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/16/2017] [Accepted: 09/17/2017] [Indexed: 12/19/2022]
Abstract
High Mobility Group AT-hook 1 (HMGA1) was identified as a target of miR-214 in human cervical and colorectal cancers (CaCx and CRC) in a previous study. While the expression of miR-214 remains suppressed, HMGA1 behaves as a potent oncogene and plays crucial roles in several aberrant signalling pathways by interacting with intermediates like RELA, CTNNB1, STAT3, and TP53 in CaCx and CRC. Hypothetically, miR-214 should be able to regulate the stabilization of some of these intermediates through the regulation of HMGA1. This was assessed by ectopically expressing miR-214 or complementarily, by inhibiting the expression of HMGA1. In promoter luciferase assays, miR-214 inhibited NF-κB and Wnt activities but elevated TP53 activity in cancer cells. Further, miR-214 suppressed the expression of HMGA1, RELA, CTNNB1, and STAT3 while elevating TP53 levels, similar to when small interfering RNA (siRNA) against HMGA1 was used, as revealed by Western blotting. It is suggested that poor expression of miR-214, commonly reported in CaCx and CRC tissues, may not only result in the sustained expression of HMGA1 but also that of RELA, CTNNB1, and STAT3, and a congruent suppression of TP53 during cancer initiation/progression. These several states are, however, reversed when miR-214 is reintroduced and could explain the tumour suppressive functions observed in earlier studies. Further studies are, however, required to reveal how microRNA-mediated regulation of HMGA1 expression may affect individual signalling pathways in CaCx and CRC. Current results reveal that miR-214 is not only able to regulate the expression of its direct target, HMGA1, but also that of a few signalling intermediates like TP53, RELA, CTNNB1, and STAT3, with which HMGA1 interacts. These intermediates play crucial roles in signalling pathways commonly deregulated in human CaCx and CRC. Hence, it is proposed that miR-214 might act as a tumour suppressor by regulating several aberrant signalling pathways through HMGA1. This knowledge has the potential to help design novel therapeutic strategies in CaCx and CRC.
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Affiliation(s)
- Karthik Subramanian Chandrasekaran
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Anusha Sathyanarayanan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
| | - Devarajan Karunagaran
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
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25
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Zhu X, Huang L, Gong J, Shi C, Wang Z, Ye B, Xuan A, He X, Long D, Zhu X, Ma N, Leng S. NF- κB pathway link with ER stress-induced autophagy and apoptosis in cervical tumor cells. Cell Death Discov 2017; 3:17059. [PMID: 28904818 PMCID: PMC5592653 DOI: 10.1038/cddiscovery.2017.59] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 06/25/2017] [Accepted: 06/30/2017] [Indexed: 12/11/2022] Open
Abstract
Targeting endoplasmic reticulum (ER) stress is being investigated for its anticancer effect in various cancers, including cervical cancer. However, the molecular pathways whereby ER stress mediates cell death remain to be fully elucidated. In this study, we confirmed that ER stress triggered by compounds such as brefeldin A (BFA), tunicamycin (TM), and thapsigargin (TG) leads to the induction of the unfolded protein response (UPR) in cervical cancer cell lines, which is characterized by elevated levels of inositol-requiring kinase 1α, glucose-regulated protein-78, and C/EBP homologous protein, and swelling of the ER observed by transmission electron microscope (TEM). We found that BFA significantly increased autophagy in tumor cells and induced TC-1 tumor cell death in a dose-dependent manner. BFA increased punctate staining of LC3 and the number of autophagosomes observed by TEM in TC-1 and HeLa cells. The autophagic flux was also assessed. Bafilomycin, which blocked degradation of LC3 in lysosomes, caused both LC3I and LC3II accumulation. BFA initiated apoptosis of TC-1 tumor cells through activation of the caspase-12/caspase-3 pathway. At the same time, BFA enhanced the phosphorylation of IκBα protein and translocation into the nucleus of NF-κB p65. Quinazolinediamine, an NF-κB inhibitor, attenuated both autophagy and apoptosis induced by BFA; meanwhile, it partly enhances survival of cervical cancer cells following BFA treatment. In conclusion, our results indicate that the cross-talk between ER stress, autophagy, apoptosis, and the NF-κB pathways controls the fate of cervical cancer cells. Careful evaluation should be given to the addition of an NF-κB pathway inhibitor to treat cervical cancer in combination with drugs that induce ER stress-mediated cell death.
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Affiliation(s)
- Xiaolan Zhu
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Li Huang
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Jie Gong
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Chun Shi
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Zhiming Wang
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Bingkun Ye
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Aiguo Xuan
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Xiaosong He
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Dahong Long
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
| | - Xiao Zhu
- Guangdong Province Key Laboratory of Medical Molecular Diagnosis, Guangdong Medical College, Zhanjiang/Dongguan, People's Republic of China
| | - Ningfang Ma
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Shuilong Leng
- Department of Human Anatomy, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong 511436, People's Republic of China
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26
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Slotta C, Schlüter T, Ruiz-Perera LM, Kadhim HM, Tertel T, Henkel E, Hübner W, Greiner JFW, Huser T, Kaltschmidt B, Kaltschmidt C. CRISPR/Cas9-mediated knockout of c-REL in HeLa cells results in profound defects of the cell cycle. PLoS One 2017; 12:e0182373. [PMID: 28767691 PMCID: PMC5540532 DOI: 10.1371/journal.pone.0182373] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 07/17/2017] [Indexed: 12/17/2022] Open
Abstract
Cervical cancer is the fourth common cancer in women resulting worldwide in 266,000 deaths per year. Belonging to the carcinomas, new insights into cervical cancer biology may also have great implications for finding new treatment strategies for other kinds of epithelial cancers. Although the transcription factor NF-κB is known as a key player in tumor formation, the relevance of its particular subunits is still underestimated. Here, we applied CRISPR/Cas9n-mediated genome editing to successfully knockout the NF-κB subunit c-REL in HeLa Kyoto cells as a model system for cervical cancers. We successfully generated a homozygous deletion in the c-REL gene, which we validated using sequencing, qPCR, immunocytochemistry, western blot analysis, EMSA and analysis of off-target effects. On the functional level, we observed the deletion of c-REL to result in a significantly decreased cell proliferation in comparison to wildtype (wt) without affecting apoptosis. The impaired proliferative behavior of c-REL-/- cells was accompanied by a strongly decreased amount of the H2B protein as well as a significant delay in the prometaphase of mitosis compared to c-REL+/+ HeLa Kyoto cells. c-REL-/- cells further showed significantly decreased expression levels of c-REL target genes in comparison to wt. In accordance to our proliferation data, we observed the c-REL knockout to result in a significantly increased resistance against the chemotherapeutic agents 5-Fluoro-2'-deoxyuridine (5-FUDR) and cisplatin. In summary, our findings emphasize the importance of c-REL signaling in a cellular model of cervical cancer with direct clinical implications for the development of new treatment strategies.
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Affiliation(s)
- Carsten Slotta
- Department of Cell Biology, University of Bielefeld, Bielefeld, Germany
| | - Thomas Schlüter
- Department of Cell Biology, University of Bielefeld, Bielefeld, Germany
| | | | | | - Tobias Tertel
- Department of Cell Biology, University of Bielefeld, Bielefeld, Germany
| | - Elena Henkel
- Department of Cell Biology, University of Bielefeld, Bielefeld, Germany
| | - Wolfgang Hübner
- Biomolecular Photonics, University of Bielefeld, Bielefeld, Germany
| | | | - Thomas Huser
- Biomolecular Photonics, University of Bielefeld, Bielefeld, Germany
| | - Barbara Kaltschmidt
- Department of Cell Biology, University of Bielefeld, Bielefeld, Germany
- AG Molecular Neurobiology, University of Bielefeld, Bielefeld, Germany
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27
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Ali A, Kim SH, Kim MJ, Choi MY, Kang SS, Cho GJ, Kim YS, Choi JY, Choi WS. O-GlcNAcylation of NF-κB Promotes Lung Metastasis of Cervical Cancer Cells via Upregulation of CXCR4 Expression. Mol Cells 2017; 40:476-484. [PMID: 28681591 PMCID: PMC5547217 DOI: 10.14348/molcells.2017.2309] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 05/21/2017] [Accepted: 06/05/2017] [Indexed: 12/31/2022] Open
Abstract
C-X-C chemokine receptor 4 (CXCR4) stimulates cancer metastasis. NF-κB regulates CXCR4 expression in cancer cells, and O-GlcNAc modification of NF-κB promotes its transcriptional activity. Here, we determined whether CXCR4 expression is affected by O-GlcNAcylation of NF-κB in lung metastasis of cervical cancer. We found elevated levels of O-linked-N-actylglucosamine transferase (OGT) and O-GlcNAcylation in cervical cancer cells compared to those in non-malignant epithelial cells and detected increased expression of NF-κB p65 (p65) and CXCR4 in cervical cancer cells. Knockdown of OGT inhibited the O-GlcNAcylation of p65 and decreased CXCR4 expression levels in HeLa cells. Thiamet G treatment increased O-GlcNAcylated p65, which subsequently enhanced CXCR4 expression levels. Inhibition of O-GlcNAcylation by 6-Diazo-5-oxo-L-norleucine (DON) treatment decreased p65 activation, eventually inhibiting CXCR4 expression in HeLa cells. Lung tissues from mice engrafted with OGT-knockdown HeLa cells (shOGT) exhibited lower expression of Ki-67 and HPV E6 and E7 oncogenes compared to lung tissues from mice engrafted with control HeLa cells (shCTL). In addition, lung tissues from mice engrafted with shOGT cells exhibited lower p65 and CXCR4 immunoreactivity compared to tissues from mice engrafted with shCTL cells. Taken together, our data suggest that p65 O-GlcNAcylation promotes lung metastasis of cervical cancer cells by activating CXCR4 expression.
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Affiliation(s)
- Akhtar Ali
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Sung Hwan Kim
- Department of Thoriac and Cardiovascular Surgery, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Min Jun Kim
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Mee Young Choi
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Sang Soo Kang
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Gyeong Jae Cho
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Yoon Sook Kim
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Jun-Young Choi
- Department of Thoriac and Cardiovascular Surgery, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
| | - Wan Sung Choi
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, Gyeongsang National University, School of Medicine, Jinju 52727,
Korea
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28
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Gottardo MF, Moreno Ayala M, Ferraris J, Zárate S, Pisera D, Candolfi M, Jaita G, Seilicovich A. Humanin inhibits apoptosis in pituitary tumor cells through several signaling pathways including NF-κB activation. J Cell Commun Signal 2017; 11:329-340. [PMID: 28378125 DOI: 10.1007/s12079-017-0388-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 03/20/2017] [Indexed: 02/04/2023] Open
Abstract
Humanin (HN) and Rattin (HNr), its homologous in the rat, are peptides with cytoprotective action in several cell types such as neurons, lymphocytes and testicular germ cells. Previously, we have shown that HNr is expressed in pituitary cells and that HN inhibited the apoptotic effect of TNF-α in both normal and tumor pituitary cells. The aim of the present study was to identify signaling pathways that mediate the antiapoptotic effect of HN in anterior pituitary cells from ovariectomized rats and in GH3 cells, a somatolactotrope cell line. We assessed the role of STAT3, JNK, Akt and MAPKs as well as proteins of the Bcl-2 family, previously implicated in the antiapoptotic effect of HN. We also evaluated the participation of NF-κB in the antiapoptotic action of HN. STAT3 inhibition reversed the inhibitory effect of HN on TNF-α-induced apoptosis in normal and pituitary tumor cells, indicating that STAT3 signaling pathway mediates the antiapoptotic effect of HN on pituitary cells. Inhibition of NF-κB pathway did not affect action of HN on normal anterior pituitary cells but blocked the cytoprotective effect of HN on TNF-α-induced apoptosis of GH3 cells, suggesting that the NF-κB pathway is involved in HN action in tumor pituitary cells. HN also induced NF-κB-p65 nuclear translocation in these cells. In pituitary tumor cells, JNK and MEK inhibitors also impaired HN cytoprotective action. In addition, HN increased Bcl-2 expression and decreased Bax mitochondrial translocation. Since HN expression in GH3 cells is higher than in normal pituitary cells, we may suggest that through multiple pathways HN could be involved in pituitary tumorigenesis.
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Affiliation(s)
- María Florencia Gottardo
- Facultad de Medicina, Departamento de Biología Celular e Histología, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Mariela Moreno Ayala
- CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Jimena Ferraris
- Facultad de Medicina, Departamento de Biología Celular e Histología, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Sandra Zárate
- Facultad de Medicina, Departamento de Biología Celular e Histología, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Daniel Pisera
- CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Marianela Candolfi
- CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Gabriela Jaita
- Facultad de Medicina, Departamento de Biología Celular e Histología, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.,CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina
| | - Adriana Seilicovich
- Facultad de Medicina, Departamento de Biología Celular e Histología, Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina. .,CONICET, Instituto de Investigaciones Biomédicas (INBIOMED), Universidad de Buenos Aires, Paraguay 2155, piso 10, C1121ABG, Buenos Aires, Argentina.
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29
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Ma X, Yan L, Zhu Q, Shao F. Puerarin attenuates cisplatin-induced rat nephrotoxicity: The involvement of TLR4/NF-κB signaling pathway. PLoS One 2017; 12:e0171612. [PMID: 28182789 PMCID: PMC5300759 DOI: 10.1371/journal.pone.0171612] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/23/2017] [Indexed: 12/14/2022] Open
Abstract
Puerarin was a major isoflavonoid derived from the Chinese medical herb radix puerariae (Gegen). In present study effect of puerarin on cisplatin nephrotoxicity was evaluated. Rat model of nephrotoxicity was established by a single intraperitoneal injection of cisplatin (7mg/kg). Puerarin was administrated through caudal vein injection once per day at the dose of 10mg/kg, 30mg/kg and 50mg/kg. Biochemical assays showed that after cisplatin treatment the serum urea and creatinine increased significantly compared with control (P<0.05). Cisplatin treatment significantly increased xanthine oxidase (XO) activity and malondialdehyde (MDA) formation, and significantly decreased the levels and /or activities of enzymatic and non-enzymatic antioxidants (GSH, GPx, GST, GR, SOD, CAT), in the kidney tissues. Renal levels of TNF-α and IL-6, two important inflammatory cytokines, were also upregulated by cisplatin. Histopathological examination indicated that cisplatin treatment resulted in severe necrosis and degeneration, hyaline casts in the tubules, intertubular hemorrhage, congestion and swelling in glomerulus and leukocytes infiltration in the kidney tissues. Western blot results demonstrated that cisplatin increased TLR4 and NF-κB protein expression in the kidney tissues. However, all these changes induced by cisplatin were significantly attenuated by puerarin treatment in dose-dependent manner, which indicated the renal protective effect of puerarin. Cell culture experiments illustrated that puerarin alone treatment concentration-dependently inhibited COLO205 and HeLa tumor cell growth and dose-dependently promoted the antitumor activity of cisplatin in COLO205 and HeLa tumor cells. The promotion effects might be attributed to suppression of cisplatin-increased NF-κB p65 expression by puerarin. Taken together, findings in this study suggested that puerarin exhibited renal protection against cisplatin nephrotoxicity via inhibiting TLR4/NF-κB signaling, with no inhibition but promotion effect on the antitumor activity of cisplatin. Puerarin might be a promising adjuvant agent for cisplatin chemotherapy.
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Affiliation(s)
- Xu Ma
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Lei Yan
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Qing Zhu
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Fengmin Shao
- Department of Nephrology, People's Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
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Kaplan GS, Torcun CC, Grune T, Ozer NK, Karademir B. Proteasome inhibitors in cancer therapy: Treatment regimen and peripheral neuropathy as a side effect. Free Radic Biol Med 2017; 103:1-13. [PMID: 27940347 DOI: 10.1016/j.freeradbiomed.2016.12.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 10/22/2016] [Accepted: 12/04/2016] [Indexed: 01/10/2023]
Abstract
Proteasomal system plays an important role in protein turnover, which is essential for homeostasis of cells. Besides degradation of oxidized proteins, it is involved in the regulation of many different signaling pathways. These pathways include mainly cell differentiation, proliferation, apoptosis, transcriptional activation and angiogenesis. Thus, proteasomal system is a crucial target for treatment of several diseases including neurodegenerative diseases, cystic fibrosis, atherosclerosis, autoimmune diseases, diabetes and cancer. Over the last fifteen years, proteasome inhibitors have been tested to highlight their mechanisms of action and used in the clinic to treat different types of cancer. Proteasome inhibitors are mainly used in combinational therapy along with classical chemo-radiotherapy. Several studies have proved their significant effects but serious side effects such as peripheral neuropathy, limits their use in required effective doses. Recent studies focus on peripheral neuropathy as the primary side effect of proteasome inhibitors. Therefore, it is important to delineate the underlying mechanisms of peripheral neuropathy and develop new inhibitors according to obtained data. This review will detail the role of proteasome inhibition in cancer therapy and development of peripheral neuropathy as a side effect. Additionally, new approaches to prevent treatment-limiting side effects will be discussed in order to help researchers in developing effective strategies to overcome side effects of proteasome inhibitors.
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Affiliation(s)
- Gulce Sari Kaplan
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, 34854 Maltepe, Istanbul, Turkey
| | - Ceyda Corek Torcun
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, 34854 Maltepe, Istanbul, Turkey
| | - Tilman Grune
- Department for Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), Nuthetal, Germany
| | - Nesrin Kartal Ozer
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, 34854 Maltepe, Istanbul, Turkey
| | - Betul Karademir
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, 34854 Maltepe, Istanbul, Turkey.
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Zhang L, Bai Y, Yang Y. Thymoquinone chemosensitizes colon cancer cells through inhibition of NF-κB. Oncol Lett 2016; 12:2840-2845. [PMID: 27698868 DOI: 10.3892/ol.2016.4971] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 02/12/2016] [Indexed: 01/13/2023] Open
Abstract
In the present study, the effects and molecular mechanisms of thymoquinone (TQ) on colon cancer cells were investigated. Cell viability was determined using a Cell Counting Kit-8 assay, and the results revealed that treatment with TQ significantly decreased cell viability in COLO205 and HCT116 cells in a dose-dependent manner. TQ treatment additionally sensitized COLO205 and HCT116 cells to cisplatin therapy in a concentration-dependent manner. To investigate the molecular mechanisms of TQ action, western blot analysis was used to determine the levels of phosphorylated p65 and nuclear factor-κB (NF-κB)-regulated gene products vascular endothelial growth factor (VEGF), c-Myc and B-cell lymphoma 2 (Bcl-2). The results indicated that TQ treatment significantly decreased the level of phosphorylated p65 in the nucleus, which indicated the inhibition of NF-κB activation by TQ treatment. Treatment with TQ also decreased the expression levels of VEGF, c-Myc and Bcl-2. In addition, the inhibition of NF-κB activation with a specific inhibitor, pyrrolidine dithiocarbamate, potentiated the induction of cell death and caused a chemosensitization effect of TQ in colon cancer cells. Overall, the results of the present study suggested that TQ induced cell death and chemosensitized colon cancer cells by inhibiting NF-κB signaling.
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Affiliation(s)
- Lida Zhang
- Department of Gastroenterology, The Affiliated Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Yangqiu Bai
- Department of Gastroenterology, The Affiliated Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Yuxiu Yang
- Department of Gastroenterology, The Affiliated Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
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Zhou X, Xu CJ, Wang JX, Dai T, Ye YP, Cui YM, Liao WT, Wu XL, Ou JP. Metastasis-Associated in Colon Cancer-1 Associates With Poor Prognosis and Promotes Cell Invasion and Angiogenesis in Human Cervical Cancer. Int J Gynecol Cancer 2016; 25:1353-63. [PMID: 26332389 PMCID: PMC5106080 DOI: 10.1097/igc.0000000000000524] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Supplemental digital content is available in the text. Objective The aim of this study is to investigate the clinicopathologic significance and potential role of metastasis-associated in colon cancer-1 (MACC1) in the progression of cervical cancer. Methods MACC1 expression was examined in cervical cancer cell lines, 6 matched cervical cancer tissues, and adjacent noncancerous tissues using Western blotting and real-time reverse transcriptase polymerase chain reaction. MACC1 protein expression and localization were determined in 181 paraffin-embedded archived cervical cancer samples using immunohistochemistry. Statistical analyses were applied to evaluate the clinicopathologic significance. The effects of MACC1 on cell migration, invasion, and angiogenesis were examined using migration assay, wound healing assay, 3-dimensional morphogenesis assay, and chicken chorioallantoic membrane assay. Western blotting was performed to examine the impact of MACC1 on the Akt and nuclear factor κB signaling pathways. Results Both protein and messenger RNA levels of MACC1 was up-regulated in cervical cancer cell lines and cervical cancer tissues, as compared with normal tissues. High MACC1 expression was detected in 96 (53%) of 181 of the cervical cancer tissues. In addition, high MACC1 expression correlated significantly with aggressiveness of cervical cancer, including International Federation of Gynecology and Obstetric stage (P = 0.001), pelvic lymph node metastasis (P = 0.004), recurrence (P = 0.037), and poor survival (P = 0.001). Moreover, enforced expression of MACC1 in cervical cancer cell lines significantly enhanced cell migration, invasion, and angiogenesis. Conversely, knockdown of MACC1 caused an inhibition of cell migration, invasion, and angiogenesis. Up-regulation of MACC1 increased, but knockdown of MACC1 decreased the expression of matrix metalloproteinase-2 and matrix metalloproteinase-9. Furthermore, enforced expression of MACC1 could enhance, but knockdown of MACC1 could reduce AKT and nuclear factor κB pathway activity. Conclusions Our findings suggest that MACC1 protein, as a valuable marker of cervical cancer prognosis, plays an important role in the progression of human cervical cancer cells.
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Affiliation(s)
- Xiang Zhou
- *Department of Microscurgery and Hand Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; †Department of Pathology of Basic Medical Sciences, Southern Medical University, Guangzhou, China; and ‡Department of Gynaecology and Obstetrics, the 157 Affiliated Hospital, General Hospital of Guangzhou Military Command of PLA, Guangzhou, China; §Department of Traditional Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; and ∥Center for Reproductive Medicine, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Bai Y, Zhang L, Fang X, Yang Y. Tanshinone IIA enhances chemosensitivity of colon cancer cells by suppressing nuclear factor-κB. Exp Ther Med 2016; 11:1085-1089. [PMID: 26998041 DOI: 10.3892/etm.2016.2984] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 07/28/2015] [Indexed: 01/07/2023] Open
Abstract
The aim of the present study was to investigate the effect and molecular mechanism of tanshinone IIA (TSA) on colon cancer cells. Cell viability was determined using Cell Counting kit-8 assay and the results demonstrated that TSA treatment significantly decreased the cell viability of HCT1116 and COLO205 cells in a dose-dependent manner. TSA treatment also sensitized HCT1116 and COLO205 cells to fluorouracil therapy in a concentration-dependent manner. Western blotting was performed in order to investigate the molecular mechanisms of TSA action and determine the level of phosporylated p65 and nuclear factor-κB (NF-κB)-regulated genes, including vascular endothelial growth factor (VEGF), c-Myc, cyclooxygenase-2 (COX-2) and B-cell lymphoma-2 (Bcl-2). The results revealed that TSA treatment greatly decreased the level of phosphorylated p65 in the nucleus, which indicated the inhibition of NF-κB activation by TSA treatment. TSA also decreased the expression levels of VEGF, c-Myc, COX-2 and Bcl-2. Furthermore, the inhibition of NF-κB activation with the specific inhibitor, pyrrolidine dithiocarbamate, increased the induction of cell death and chemosensitization effect of TSA in colon cancer cells. In conclusion, these results suggest that TSA induces cell death and chemosensitizes colon cancer cells through the suppression of NF-κB signaling.
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Affiliation(s)
- Yangqiu Bai
- Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Lida Zhang
- Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Xinhui Fang
- Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Yuxiu Yang
- Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
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Gupta A, Kumar R, Sahu V, Agnihotri V, Singh AP, Bhasker S, Dey S. NFκB-p50 as a blood based protein marker for early diagnosis and prognosis of head and neck squamous cell carcinoma. Biochem Biophys Res Commun 2015; 467:248-53. [DOI: 10.1016/j.bbrc.2015.09.181] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 09/29/2015] [Indexed: 12/29/2022]
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Giopanou I, Lilis I, Papaleonidopoulos V, Marazioti A, Spella M, Vreka M, Papadaki H, Stathopoulos GT. Comprehensive Evaluation of Nuclear Factor-κΒ Expression Patterns in Non-Small Cell Lung Cancer. PLoS One 2015; 10:e0132527. [PMID: 26147201 PMCID: PMC4493092 DOI: 10.1371/journal.pone.0132527] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/15/2015] [Indexed: 12/22/2022] Open
Abstract
Nuclear factor (NF)-κB signalling is required for lung adenocarcinoma development in mice, and both of its subunits RelA and RelB were independently reported to be highly expressed in human non-small cell lung cancer (NSCLC). To comprehensively examine NF-κB expression in NSCLC, we analyzed serial sections of primary tumor samples from 77 well-documented patients (36 adenocarcinomas, 40 squamous cell carcinomas and 3 large cell carcinomas) for immunoreactivity of RelA, RelB, P50, and P52/P100. Tumor and intratumoral stroma areas were discriminated based on proliferating cell nuclear antigen immunoreactivity and inflammatory infiltration was assessed in intratumoral stroma areas. NF-κB immunoreactivity was quantified by intensity, extent, and nuclear localization and was cross-examined with tumor cell proliferation, inflammatory infiltration, and clinical-pathologic data. We found that the expression of the different NF-κB subunits was not concordant, warranting our integral approach. Overall, RelA, RelB, and P50 were expressed at higher levels compared with P52/P100. However, RelA and P50 were predominantly expressed in intratumoral stroma, but RelB in tumor cells. Importantly, tumor area RelA expression was correlated with the intensity of inflammatory infiltration, whereas RelB expression was identified in proliferating tumor cells. Using multiple logistic regression, we identified that tumor RelB expression was an independent predictor of lymph node metastasis, and tumor P50 was an independent predictor of TNM6 stage IIB or higher, whereas tumor RelA was an independent predictor of inflammatory infiltration. We conclude that pathologic studies of NF-κB expression in cancer should include multiple pathway components. Utilizing such an approach, we identified intriguing associations between distinct NF-κB subunits and clinical and pathologic features of NSCLC.
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Affiliation(s)
- Ioanna Giopanou
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Ioannis Lilis
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Vassilios Papaleonidopoulos
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Antonia Marazioti
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Magda Spella
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Malamati Vreka
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Helen Papadaki
- Department of Anatomy, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
| | - Georgios T. Stathopoulos
- Laboratory for Molecular Respiratory Carcinogenesis, Department of Physiology, Faculty of Medicine, University of Patras, Rio, Achaia, Greece
- Comprehensive Pneumology Center (CPC), University Hospital, Ludwig-Maximilians University and Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
- * E-mail:
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Nakahara T, Tanaka K, Ohno SI, Egawa N, Yugawa T, Kiyono T. Activation of NF-κB by human papillomavirus 16 E1 limits E1-dependent viral replication through degradation of E1. J Virol 2015; 89:5040-59. [PMID: 25717108 PMCID: PMC4403482 DOI: 10.1128/jvi.00389-15] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 02/14/2015] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED NF-κB is a family of transcription factors that regulate gene expression involved in many processes, such as the inflammatory response and cancer progression. Little is known about associations of NF-κB with the human papillomavirus (HPV) life cycle. We have developed a tissue culture system to conditionally induce E1-dependent replication of the human papillomavirus 16 (HPV16) genome in human cervical keratinocytes and found that expression of HPV16 E1, a viral helicase, results in reduction of IκBα and subsequent activation of NF-κB in a manner dependent on helicase activity. Exogenous expression of a degradation-resistant mutant of IκBα, which inhibits the activation of NF-κB, enhanced E1-dependent replication of the viral genome. Wortmannin, a broad inhibitor of phosphoinositide 3-kinases (PI3Ks), and, to a lesser extent, VE-822, an ATR kinase inhibitor, but not KU55933, an ATM kinase inhibitor, suppressed the activation of NF-κB and augmented E1-dependent replication of the HPV16 genome. Interestingly, the enhancement of E1-dependent replication of the viral genome was associated with increased stability of E1 in the presence of wortmannin as well as the IκBα mutant. Collectively, we propose that expression of E1 induces NF-κB activation at least in part through the ATR-dependent DNA damage response and that NF-κB in turn limits E1-dependent replication of HPV16 through degradation of E1, so that E1 and NF-κB may constitute a negative feedback loop. IMPORTANCE A major risk factor in human papillomavirus (HPV)-associated cancers is persistent infection with high-risk HPVs. To eradicate viruses from infected tissue, it is important to understand molecular mechanisms underlying the establishment and maintenance of persistent infection. In this study, we obtained evidence that human papillomavirus 16 (HPV16) E1, a viral DNA helicase essential for amplification of the viral genomes, induces NF-κB activation and that this limits E1-dependent genome replication of HPV16. These results suggest that NF-κB mediates a negative feedback loop to regulate HPV replication and that this feedback loop could be associated with control of the viral copy numbers. We could thus show for the first time that NF-κB activity is involved in the establishment and maintenance of persistent HPV infection.
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Affiliation(s)
- Tomomi Nakahara
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan
| | - Katsuyuki Tanaka
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan
| | - Shin-ichi Ohno
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan
| | - Nagayasu Egawa
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan
| | - Takashi Yugawa
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo, Japan
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He P, Wu W, Yang K, Tan D, Tang M, Liu H, Wu T, Zhang S, Wang H. Rho Guanine Nucleotide Exchange Factor 5 Increases Lung Cancer Cell Tumorigenesis via MMP-2 and Cyclin D1 Upregulation. Mol Cancer Ther 2015; 14:1671-9. [PMID: 25777963 DOI: 10.1158/1535-7163.mct-14-0724] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 02/05/2015] [Indexed: 11/16/2022]
Affiliation(s)
- Ping He
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Wei Wu
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Kang Yang
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Deli Tan
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Meng Tang
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Hongxiang Liu
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Tao Wu
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Shixin Zhang
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Haidong Wang
- Cardiothoracic Surgery Department, Southwest Hospital, Third Military Medical University, Chongqing, China.
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Pallavi S, Anoop K, Showket H, Alo N, Mausumi B. NFKB1/NFKBIa polymorphisms are associated with the progression of cervical carcinoma in HPV-infected postmenopausal women from rural area. Tumour Biol 2015; 36:6265-76. [DOI: 10.1007/s13277-015-3312-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 03/05/2015] [Indexed: 01/17/2023] Open
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Paiva I, Gil da Costa RM, Ribeiro J, Sousa H, Bastos MMSM, Faustino-Rocha A, Lopes C, Oliveira PA, Medeiros R. MicroRNA-21 expression and susceptibility to HPV-induced carcinogenesis - role of microenvironment in K14-HPV16 mice model. Life Sci 2015; 128:8-14. [PMID: 25771247 DOI: 10.1016/j.lfs.2015.02.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 11/12/2014] [Accepted: 02/18/2015] [Indexed: 11/18/2022]
Affiliation(s)
- Isabel Paiva
- Molecular Oncology and Viral Pathology Group, CI-IPOP, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; ICBAS, Abel Salazar Institute for the Biomedical Sciences, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Rui M Gil da Costa
- LEPABE, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; Experimental Pathology and Therapeutics Group, CI-IPOP, Portuguese Institute of Oncology, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Joana Ribeiro
- Molecular Oncology and Viral Pathology Group, CI-IPOP, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; Virology Service, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Hugo Sousa
- Molecular Oncology and Viral Pathology Group, CI-IPOP, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; Virology Service, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Margarida M S M Bastos
- LEPABE, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - Ana Faustino-Rocha
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, Quinta de Prados, 5001-911 Vila Real, Portugal
| | - Carlos Lopes
- Experimental Pathology and Therapeutics Group, CI-IPOP, Portuguese Institute of Oncology, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Paula A Oliveira
- Veterinary Sciences Department, University of Trás-os-Montes and Alto Douro, UTAD, Quinta de Prados, 5001-801 Vila Real, Portugal; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, UTAD, Quinta de Prados, 5001-911 Vila Real, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, CI-IPOP, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; ICBAS, Abel Salazar Institute for the Biomedical Sciences, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; Virology Service, Portuguese Institute of Oncology of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; CEBIMED, Faculty of Health Sciences of Fernando Pessoa University, Porto, Portugal; Portuguese League Against Cancer (Liga Portuguesa Contra o Cancro - Núcleo Regional do Norte), Estrada Interior da Circunvalação, no. 6657, 4200-177 Porto, Portugal.
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Prabhavathy D, Vijayalakshmi R, Kanchana MP, Karunagaran D. HPV16 E2 enhances the expression of NF-κB and STAT3 target genes and potentiates NF-κB activation by inflammatory mediators. Cell Immunol 2015; 292:70-7. [PMID: 25460081 DOI: 10.1016/j.cellimm.2014.09.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 09/07/2014] [Accepted: 09/29/2014] [Indexed: 02/06/2023]
Abstract
HPV-transformed cells exhibit activation of NF-κB and STAT3 (mediators of inflammation), but very little is known about their regulation under inflammatory conditions before HPV integration. This study reports that cervical tissues with stromal inflammation and intact HPV16 E2 gene show increased expression of target genes of NF-κB and/or STAT3 which can regulate cell survival (cyclin D1, c-Myc, survivin and Bcl2) and inflammatory responses (TNF-α, IL-1β, IL-6, IL-8 and CCR2). Increased expression of RelA, p-IκBα, STAT3, p-STAT3 (Ser727), Pin1 (peptidyl-prolyl cis/trans isomerase) and MCM2 in the squamous epithelia of cervices with stromal inflammation supports early activation of NF-κB-STAT3. Furthermore, HPV16 E2 potentiated NF-κB activation induced by inflammatory mediators, IL-1β and SDF-1α, in HEK293 cells. These results reveal a novel role for E2 in regulating the activities of NF-κB and STAT3 that may have implications in carcinogenic progression of HPV16-infected cells under conditions of stromal inflammation.
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Shostak K, Zhang X, Hubert P, Göktuna SI, Jiang Z, Klevernic I, Hildebrand J, Roncarati P, Hennuy B, Ladang A, Somja J, Gothot A, Close P, Delvenne P, Chariot A. NF-κB-induced KIAA1199 promotes survival through EGFR signalling. Nat Commun 2014; 5:5232. [PMID: 25366117 PMCID: PMC4241993 DOI: 10.1038/ncomms6232] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 09/09/2014] [Indexed: 12/21/2022] Open
Abstract
Constitutive activation of EGFR- and NF-κB-dependent pathways is a hallmark of cancer, yet signalling proteins that connect both oncogenic cascades are poorly characterized. Here we define KIAA1199 as a BCL-3- and p65-dependent gene in transformed keratinocytes. KIAA1199 expression is enhanced on human papillomavirus (HPV) infection and is aberrantly expressed in clinical cases of cervical (pre)neoplastic lesions. Mechanistically, KIAA1199 binds Plexin A2 and protects from Semaphorin 3A-mediated cell death by promoting EGFR stability and signalling. Moreover, KIAA1199 is an EGFR-binding protein and KIAA1199 deficiency impairs EGF-dependent Src, MEK1 and ERK1/2 phosphorylations. Therefore, EGFR stability and signalling to downstream kinases requires KIAA1199. As such, KIAA1199 promotes EGF-mediated epithelial-mesenchymal transition (EMT). Taken together, our data define KIAA1199 as an oncogenic protein induced by HPV infection and constitutive NF-κB activity that transmits pro-survival and invasive signals through EGFR signalling.
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Affiliation(s)
- Kateryna Shostak
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Xin Zhang
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Pascale Hubert
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Experimental Pathology, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Cancer, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Serkan Ismail Göktuna
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Zheshen Jiang
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Iva Klevernic
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Julien Hildebrand
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Patrick Roncarati
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Experimental Pathology, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Cancer, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Benoit Hennuy
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] GIGA Transcriptomics Facility, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Aurélie Ladang
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Joan Somja
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Experimental Pathology, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Cancer, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - André Gothot
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] GIGA-Infection, Immunity and Inflammation, Department of Medicine/Hematology, University of Liege, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Pierre Close
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Philippe Delvenne
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Experimental Pathology, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Cancer, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
| | - Alain Chariot
- 1] Interdisciplinary Cluster for Applied Genoproteomics (GIGA-Research) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [2] Laboratory of Medical Chemistry, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [3] GIGA-Signal Transduction, University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium [4] Walloon Excellence in Life Sciences and Biotechnology (WELBIO) , University of Liege, 1, Avenue de l'ho^pital, CHU, Sart-Tilman, Liege 4000, Belgium
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Metadherin, p50, and p65 expression in epithelial ovarian neoplasms: an immunohistochemical study. BIOMED RESEARCH INTERNATIONAL 2014; 2014:178410. [PMID: 24963474 PMCID: PMC4055019 DOI: 10.1155/2014/178410] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 05/08/2014] [Accepted: 05/10/2014] [Indexed: 12/16/2022]
Abstract
NF-κB signaling promotes cancer progression in a large number of malignancies. Metadherin, a coactivator of the NF-κB transcription complex, was recently identified to regulate different signaling pathways that are closely related to cancer. We assessed the immunohistochemical expression of p50, p65, and metadherin in 30 ovarian carcinomas, 15 borderline ovarian tumours, and 31 benign ovarian cystadenomas. Ovarian carcinomas exhibited significantly higher expression of all 3 markers compared to benign ovarian tumours. Borderline ovarian tumours demonstrated significantly higher expression for all 3 markers compared to benign cystadenomas. Ovarian carcinomas demonstrated significantly higher expression of p50 and metadherin compared to borderline ovarian tumours, whereas no significant difference was noted in p65 expression between ovarian carcinomas and borderline ovarian tumours. There was a strong correlation with the expression levels of p50, p65, and metadherin, whereas no correlation was observed with either grade or stage. Strong p50, p65, and metadherin expression was associated with a high probability to distinguish ovarian carcinomas over borderline and benign ovarian tumours, as well as borderline ovarian tumours over benign ovarian neoplasms. A gradual increase in the expression of these molecules is noted when moving across the spectrum of ovarian carcinogenesis, from borderline ovarian tumours to epithelial carcinomas.
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HPV16 E2-mediated potentiation of NF-κB activation induced by TNF-α involves parallel activation of STAT3 with a reduction in E2-induced apoptosis. Mol Cell Biochem 2014; 394:77-90. [PMID: 24833467 DOI: 10.1007/s11010-014-2083-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 05/03/2014] [Indexed: 02/08/2023]
Abstract
Human papilloma virus is associated with cervical and other tumors, and several cellular conditions also play an important role in carcinogenesis. Human papilloma virus (HPV)-infected cells exhibit activation of NF-κB and STAT3 (mediators of inflammation), but little is known about their regulation by HPV. This study attempts to understand the role of HPV16 E2, an important early protein of HPV16, in the regulation of NF-κB and STAT3 by reporter assays, quantitative reverse transcriptase-polymerase chain reaction, and immunoblotting. We demonstrate that E2 enhances NF-κB activation induced by TNF-α, a proinflammatory cytokine, in both non-tumor- and tumor-derived epithelial cell lines besides potentiating STAT3 transcriptional activity induced by TNF-α in HEK293 cells. E2 increases the expression of RelA and its transcriptional activation, and retention of E2 was observed in the nucleus with significant interaction with RelA (immunoprecipitation) upon TNF-α treatment. Transfection with shRNA-RelA or pretreatment with a STAT3 inhibitor had a negative effect on the ability of E2 to enhance TNF-α-induced NF-κB activation. Experiments with co-expression of a mutant of STAT3 with E2 also suggested that the activation of STAT3 is indispensible for TNF-α-induced NF-κB activation. Inhibition of STAT3 activation enhanced E2-induced apoptosis, whereas parallel activation of NF-κB and STAT3 by the combined action of E2 and TNF-α increased the expression of their common targets, cyclin-D1, c-Myc, survivin, and Bcl-2, leading to a decrease in E2-induced apoptosis (viability and cell cycle). Our results reveal novel mechanisms by which E2 may regulate NF-κB and STAT3 activation in the presence of TNF-α with implications on the survival of HPV-infected cells.
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Constitutive activation of nuclear factor κB contributes to cystic fibrosis transmembrane conductance regulator expression and promotes human cervical cancer progression and poor prognosis. Int J Gynecol Cancer 2014; 23:906-15. [PMID: 23640294 DOI: 10.1097/igc.0b013e318292da82] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE Cystic fibrosis transmembrane conductance regulator (CFTR) and nuclear factor κB (NF-κB) have been known to play important roles in the development and progression of many types of cancer including cervical cancer. The study aimed to verify the relevance and significance of CFTR and NF-κB expressions in cervical cancer tissues and cell lines. METHODS The expressions of CFTR and NF-κB p65 were analyzed respectively by immunohistochemistry in total of 135 cervical tissue samples. The correlation to clinicopathologic characteristics and prognostic value was evaluated. The coexpression of CFTR and NF-κB was detected in cervical cancer cell lines. Nuclear factor κB signaling was inhibited by siRNA for NF-κB p65 and activated by stimulation of cells with interleukin β or tumor necrosis factor α. RESULTS We found both the membrane expression of CFTR and nuclear translocation of NF-κB p65 were progressively increased from normal cervical tissue, cervical intraepithelial neoplasm, to cervical cancer (overall R² = 0.74, P < 0.001). Cystic fibrosis transmembrane conductance regulator expression and NF-κB activation were also positively associated with stage, histological grade, lymph node metastasis, and invasive interstitial depth. Multivariate analysis showed that coexpression of CFTR and NF-κB was an independent prognostic factor for survival (relative risk, 5.16; P = 0.003). Dual-immunofluorescence analysis showed CFTR and NF-κB were coexpressed in cervical cancer. Studies in vitro revealed that the expression levels of CFTR mRNA and protein were positively related to NF-κB activation. CONCLUSIONS Cystic fibrosis transmembrane conductance regulator and NF-κB were coexpressed in cervical cancer, and the activation of NF-κB mediated the expression of CFTR. Multivariate analysis revealed that coexpression of CFTR and NF-κB was associated with poor prognosis in patients with cervical cancer.
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Vander Broek R, Snow GE, Chen Z, Van Waes C. Chemoprevention of head and neck squamous cell carcinoma through inhibition of NF-κB signaling. Oral Oncol 2013; 50:930-41. [PMID: 24177052 DOI: 10.1016/j.oraloncology.2013.10.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 10/04/2013] [Indexed: 01/27/2023]
Abstract
Nuclear factor-kappa B (NF-κB) transcription factors regulate cellular processes such as inflammation and cell survival. The NF-κB pathway is often activated with development and progression of head and neck squamous cell carcinoma (HNSCC). As such, NF-κB represents an attractive target for chemoprevention. HNSCC involves progression of lesions from premalignant to malignant, providing a window of opportunity for intervention with chemopreventive agents. Appropriate chemopreventive agents should be inexpensive, nontoxic, and target important pathways involved in the development of HNSCC. Several such agents that inhibit the NF-κB pathway have been investigated in HNSCC. Retinoids have been studied most extensively but have shown limited potential in human trials. Epidermal growth factor receptor inhibitors and PI3K-mTOR inhibitors may benefit a subset of patients. Other agents such as green tea extract and curcumin are appealing because they are generally regarded as safe. In contrast, there is evidence that Vitamin E supplementation may actually increase mortality of cancer patients. Repurposed drugs such as cyclooxygenase (COX) inhibitors and antidiabetic drugs are an emerging area of interest. Future research to develop agents with lower toxicity and higher specificity for the NF-κB pathway, and to target these therapies to individual patient genetic signatures should help to increase the utility of chemoprevention in HSNCC.
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Affiliation(s)
- Robert Vander Broek
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, United States; Medical Research Scholars Program, NIH, Bethesda, Maryland, United States
| | - Grace E Snow
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, United States; Medical Research Scholars Program, NIH, Bethesda, Maryland, United States
| | - Zhong Chen
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, United States
| | - Carter Van Waes
- Tumor Biology Section, Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, United States.
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Chlamydia trachomatis infection results in a modest pro-inflammatory cytokine response and a decrease in T cell chemokine secretion in human polarized endocervical epithelial cells. Cytokine 2013; 63:151-65. [PMID: 23673287 DOI: 10.1016/j.cyto.2013.04.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 04/11/2013] [Accepted: 04/12/2013] [Indexed: 01/19/2023]
Abstract
The endocervical epithelium is a major reservoir for Chlamydia trachomatis in women, and genital infections are extended in their duration. Epithelial cells act as mucosal sentinels by secreting cytokines and chemokines in response to pathogen challenge and infection. We therefore determined the signature cytokine and chemokine response of primary-like endocervix-derived epithelial cells in response to a common genital serovar (D) of C. trachomatis. For these studies, we used a recently-established polarized, immortalized, endocervical epithelial cell model (polA2EN) that maintains, in vitro, the architectural and functional characteristics of endocervical epithelial cells in vivo including the production of pro-inflammatory cytokines. PolA2EN cells were susceptible to C. trachomatis infection, and chlamydiae in these cells underwent a normal developmental cycle as determined by a one-step growth curve. IL1α protein levels were increased in both apical and basolateral secretions of C. trachomatis infected polA2EN cells, but this response did not occur until 72h after infection. Furthermore, protein levels of the pro-inflammatory cytokines and chemokines IL6, TNFα and CXCL8 were not significantly different between C. trachomatis infected polA2EN cells and mock infected cells at any time during the chlamydial developmental cycle up to 120h post-infection. Intriguingly, C. trachomatis infection resulted in a significant decrease in the constitutive secretion of T cell chemokines IP10 and RANTES, and this required a productive C. trachomatis infection. Examination of anti-inflammatory cytokines revealed a high constitutive apical secretion of IL1ra from polA2EN cells that was not significantly modulated by C. trachomatis infection. IL-11 was induced by C. trachomatis, although only from the basolateral membrane. These results suggest that C. trachomatis can use evasion strategies to circumvent a robust pro-inflammatory cytokine and chemokine response. These evasion strategies, together with the inherent immune repertoire of endocervical epithelial cells, may aid chlamydiae in establishing, and possibly sustaining, an intracellular niche in microenvironments of the endocervix in vivo.
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Zhang S, Liu X, Goldstein S, Li Y, Ge J, He B, Fei X, Wang Z, Ruiz G. Role of the JAK/STAT signaling pathway in the pathogenesis of acute myocardial infarction in rats and its effect on NF-κB expression. Mol Med Rep 2012; 7:93-8. [PMID: 23128561 DOI: 10.3892/mmr.2012.1159] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 10/16/2012] [Indexed: 11/06/2022] Open
Abstract
The Janus kinase/signal transducer and activator of transcription pathway (JAK/STAT signaling pathway) is involved in the development of numerous cardiovascular diseases, although the specific role of this pathway in the pathogenesis of acute myocardial infarction (AMI) has not been elucidated. The purpose of this study was to evaluate the role of the JAK/STAT signaling pathway in the onset of AMI in rats. We also tested the effect of this pathway on nuclear factor κB (NF-κB) expression in the myocardium and tumor necrosis factor-α (TNF-α) levels in the plasma of AMI rats. An AMI rat model was successfully established and AG490 was used to block the JAK/STAT signaling pathway. The plasma TNF-α levels of AMI rats were measured by ELISA. The protein expression of NF-κB in the myocardial cells of AMI rats was detected by immunohistochemistry. The infarction area was significantly smaller in rats treated with AG490 after coronary artery ligation (group C) compared with that in the myocardial infarction control group (group B). The left ventricular mass indices in the sham surgery group (group A) and group C were significantly lower compared with those of group B. Plasma TNF-α concentrations in group B were significantly higher compared with those of groups A and C. There were significantly fewer cardiomyocytes positively exhibiting NF-κB protein expression in groups A and C compared with group B. The JAK/STAT signaling pathway is involved in the onset of myocardial infarction and may also be involved in left ventricular remodeling after myocardial infarction. The involvement of the JAK/STAT signaling pathway in the onset of myocardial infarction may be correlated with its effects on the expression of NF-κB and TNF-α.
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Affiliation(s)
- Song Zhang
- Department of Cardiovascular Diseases, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200092, PR China.
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Wang W, Guo M, Hu L, Cai J, Zeng Y, Luo J, Shu Z, Li W, Huang Z. The zinc finger protein ZNF268 is overexpressed in human cervical cancer and contributes to tumorigenesis via enhancing NF-κB signaling. J Biol Chem 2012; 287:42856-66. [PMID: 23091055 DOI: 10.1074/jbc.m112.399923] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Cervical cancer is one of the most common tumors affecting women's health worldwide. Although human papillomavirus can be detected in nearly all cases, the mechanism of cervical carcinogenesis remains to be further addressed. Here, we demonstrated that ZNF268, a Krüppel-associated box-containing zinc finger protein, might contribute to the development of cervical cancer. We found that ZNF268b2, an isoform of ZNF268, was overexpressed in human squamous cervical cancer specimens. Knockdown of ZNF268 in cervical cancer cells caused cell cycle arrest at the G(0)/G(1) phase, reduced colony formation, and increased sensitivity to TNFα-induced apoptosis. In addition, HeLa cell growth in xenograft nude mice was suppressed by ZNF268 knockdown, with increased apoptosis. Furthermore, ZNF268b2 was shown to increase NF-κB signaling in vitro and in vivo. Reconstitution of NF-κB activity restored proliferation in ZNF268 knockdown HeLa cells. Of note, we observed a high frequency of NF-κB activation in ZNF268-overexpressing cervical cancer tissues, suggesting a pathological coincidence of ZNF268b2 overexpression and NF-κB activation. Taken together, our results reveal a novel role of ZNF268b2 that contributes to cervical carcinogenesis in part through enhancing NF-κB signaling.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Virology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, China
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Tian F, Fan T, Zhang Y, Jiang Y, Zhang X. Curcumin potentiates the antitumor effects of 5-FU in treatment of esophageal squamous carcinoma cells through downregulating the activation of NF-κB signaling pathway in vitro and in vivo. Acta Biochim Biophys Sin (Shanghai) 2012; 44:847-55. [PMID: 23017833 DOI: 10.1093/abbs/gms074] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Although constitutive activation of nuclear factor-kappaB (NF-κB) signaling pathway has been reported in multiple different human tumors, the role of NF-κB pathway in esophageal squamous cell carcinoma (ESCC) remains ill-defined. Abundant sources have provided interesting insights into the multiple mechanisms by which curcumin may mediate chemotherapy and chemopreventive effects on cancer. In this study, we first analyzed the status of NF-κB pathway in the two ESCC cell lines Eca109 and EC9706, and then further investigated whether curcumin alone or in combination with 5-fluorouracil (5-FU) could modulate NF-κB pathway in vitro and in vivo. The results showed that NF-κB signaling pathway was constitutively activated in the ESCC cell lines. Curcumin suppressed the activation of NF-κB via the inhibition of IκBα phosphorylation, and downregulated the expressions of Bcl-2 and CyclinD1 in ESCC cell lines. Curcumin combined with 5-FU led to the lower cell viability and higher apoptosis than 5-FU treated alone. In a human ESCC xenograft model, curcumin or 5-FU alone reduced the tumor volume, but their combination had the strongest anticancer effects. Besides, curcumin could also inhibit NF-κB signaling pathway through downregulation of the IκBα phosphorylation and induction of cell apoptosis in vivo. Overall, our results indicated that constitutively activated NF-κB signaling pathway exists in the two ESCC cells and the chemopreventive effects of curcumin were associated with downregulation of NF-κB signaling pathway and its downstream genes.
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Affiliation(s)
- Fang Tian
- Department of Pathophysiology, School of Basic Medicine, Zhengzhou University, China.
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