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Wu Z, Wu Y, Liu Z, Song Y, Ge L, Du T, Liu Y, Liu L, Liu C, Ma L. L1CAM deployed perivascular tumor niche promotes vessel wall invasion of tumor thrombus and metastasis of renal cell carcinoma. Cell Death Discov 2023; 9:112. [PMID: 37015905 PMCID: PMC10073121 DOI: 10.1038/s41420-023-01410-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 04/06/2023] Open
Abstract
The survival of tumor cells in the bloodstream, and vasculature adhesion at metastatic sites are crucial for tumor metastasis. Perivascular invasion aids tumor cell self-renewal, survival, and formation of metastases by facilitating readily available oxygen, nutrients, and endothelial-derived paracrine factors. Renal cell carcinoma (RCC) is among the most prevalent tumors of the urinary system, and the formation of venous tumor thrombus (VTT) is a characteristic feature of RCC. We observed high expression of L1CAM in the VTT with vessel wall invasion. L1CAM promotes the adhesion, migration, and invasion ability of RCC and enhances metastasis by interacting with ITGA5, which elicits activation of signaling downstream of integrin α5β1. L1CAM promotes ADAM17 transcription to facilitate transmembrane ectodomain cleavage and release of soluble L1CAM. In response to soluble L1CAM, vascular endothelial cells release several cytokines and chemokines. Endothelial-derived CXCL5 and its receptor CXCR2 promote the migration and intravasation of RCC toward endothelial cells suggesting that crosstalk between endothelial cells and tumor cells has a direct guiding role in driving the metastatic spread of RCC. LICAM plays a crucial role in the invasive ability of RCC, and regulation of L1CAM expression may contribute therapeutically to preventing RCC progression.
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Affiliation(s)
- Zonglong Wu
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Yaqian Wu
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Zhuo Liu
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Yimeng Song
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Liyuan Ge
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Tan Du
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Yunchong Liu
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China
| | - Li Liu
- School of Nursing, Beijing University of Chinese Medicine, Beijing, 100191, P.R. China
| | - Cheng Liu
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China.
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, P.R. China.
| | - Lulin Ma
- Department of Urology, Peking University Third Hospital, Beijing, 100191, P.R. China.
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Xu R, Wu J, Luo Y, Wang Y, Tian J, Teng W, Zhang B, Fang Z, Li Y. Sanguinarine represses the growth and metastasis of non-small cell lung cancer by facilitating ferroptosis. Curr Pharm Des 2022; 28:760-768. [PMID: 35176976 DOI: 10.2174/1381612828666220217124542] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 01/04/2022] [Indexed: 11/22/2022]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sanguinarine (SAG), a natural benzophenanthridine alkaloid derived from the root of Sanguinaria canadensis Linn. (Bloodroot), possesses a potential anticancer activity. Lung carcinoma is the chief cause of malignancy-related mortality in China. Non-small cell lung carcinoma (NSCLC) is the main subtype of lung carcinoma and accounts for about eighty-five percent of this disease. Current treatment in controlling and curing NSCLC remains deficient. AIM OF THE STUDY The role and underlying mechanism of SAG in repressing the growth and metastasis of NSCLC was explored. MATERIALS AND METHODS The role of SAG in regulating the proliferation and invasion of NSCLC cells was evaluated in vitro and in a xenograft model. After treatment with SAG, Fe2+ concentration, reactive oxygen species (ROS) levels, malondialdehyde (MDA), and glutathione (GSH) content in NSCLC cells were assessed to evaluate the effect of SAG on facilitating ferroptosis. RESULTS SAG exhibited a dose- and time- dependent cytotoxicity in A549 and H3122 cells. SAG treatment effectively repressed the growth and metastasis of NSCLC in a xenograft model. We for the first time verified that SAG triggered ferroptosis of NSCLC cells, as evidenced by increased Fe2+ concentration, ROS level, and MDA content, and decreased GSH content. Mechanistically, SAG decreased the protein stability of glutathione peroxide 4 (GPX4) through E3 ligase STUB1-mediated ubiquitination and degradation of endogenous GPX4. GPX4 overexpression restored the proliferation and invasion of NSCLC cells treated with SAG through inhibiting ferroptosis. CONCLUSIONS SAG inhibits the growth and metastasis of NSCLC by regulating STUB1/GPX4-dependent ferroptosis.
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Affiliation(s)
- Rongzhong Xu
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Jianchun Wu
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Yingbin Luo
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Yuli Wang
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Jianhui Tian
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Wenjing Teng
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Bo Zhang
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Zhihong Fang
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Yan Li
- Department of Oncology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
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Yang J, Wang X, Gao Y, Fang C, Ye F, Huang B, Li L. Inhibition of PI3K-AKT Signaling Blocks PGE 2-Induced COX-2 Expression in Lung Adenocarcinoma. Onco Targets Ther 2020; 13:8197-8208. [PMID: 32904445 PMCID: PMC7455753 DOI: 10.2147/ott.s263977] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/24/2020] [Indexed: 12/22/2022] Open
Abstract
Purpose Cyclooxygenase-2 (COX-2) and its enzymatic product prostaglandin E2 (PGE2) possess tumor-promoting activity, and COX-2 is considered as a candidate for targeted cancer therapy. However, several randomized clinical trials using COX-2 inhibitors to treat advanced lung cancer have failed to improve survival indices. To employ a more effective therapeutic strategy to inhibit the COX-2-PGE2 axis in tumors, it is necessary to revisit the mechanism underlying the protumor effect of COX-2-PGE2. Patients and Methods Immunohistochemistry was used to predict the expression and prognostic value of COX-2 in lung adenocarcinoma samples. The mRNAs or proteins expression of COX-2, pAKT1/2/3, pErk1/2 and pCREB were detected after different treatments by qPCR or Western blot. The impacts of PGE2 and some inhibitors on cell proliferation and migration ability were verified by CCK-8 and transwell assays, respectively. Results In this study, we first confirmed that COX-2 expression in tumor specimens is associated with the pathological stage of the disease. Next, using lung adenocarcinoma cell lines, we found that exogenous PGE2 induces the expression of COX-2 at the mRNA and protein levels. Moreover, downregulation of COX-2 expression restrained PGE2-induced cancer cell proliferation and migration. Mechanistic analysis revealed that PGE2 stimulation activates the PKA-CREB and PI3K-AKT pathways. Downregulation of CREB expression abrogated PGE2-induced COX-2 expression. Moreover, inhibition of PI3K-AKT signaling suppressed the activation of CREB and PGE2-induced COX-2 expression. Specific inhibitors for PI3K and AKT suppressed COX-2 mRNA expression in ex vivo cultures of tumor specimens with PGE2. Conclusion Simultaneous targeting of COX-2 and PI3K-AKT effectively suppressed PGE2-induced cell proliferation and migration and both acted in a synergistic manner. Targeting the COX-2-PGE2 positive feedback loop may be therapeutically beneficial to lung adenocarcinoma.
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Affiliation(s)
- Jianjian Yang
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xue Wang
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yi Gao
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Can Fang
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Fan Ye
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Bing Huang
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Lequn Li
- Thoracic Surgery Laboratory, Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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Zhang L, Li P, Zhang BL, Yu ML, Xu RL, Wu H, Chen SP. Dysregulation of HULC promotes contrast-induced nephropathy (CIN) via regulating signaling pathway of miRNA-512 and prostaglandin E1 (PGE 1). Sci Rep 2020; 10:11691. [PMID: 32678165 PMCID: PMC7366906 DOI: 10.1038/s41598-020-68634-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 06/04/2020] [Indexed: 01/11/2023] Open
Abstract
It has been shown that contrast-induced nephropathy (CIN) can be attenuated by the administration of PGE1. As an enzyme responsible for the production of PGE1, PTGS1 was confirmed in this study as a miR-512 target. Meanwhile, HULC has been identified as a competing endogenous RNA of miR-512. Therefore, in this study, we tested the diagnostic value of HULC and miR-512 in subjects with or without CIN. In addition, we evaluated the regulatory relationship among HULC, miR-512, PTGS1 and PGE1 in vitro. We enrolled 320 patients with coronary heart disease and divided them into a CIN group and a non-CIN group. Subsequently, we detected the differential expression of miR-512, HULC and PGE1 in the two groups. We also used a dual luciferase reporter assay to evaluate the regulatory relationship among HULC, miR-512, PTGS1 and PGE1 in THP-1 cells. In patients with CIN, the expression levels of HULC and PGE1 were lower, but the expression level of miR-512 was higher. MiR-512 could directly bind to and negatively regulate the expression of PTGS1 and HULC. The expression of HULC was positively correlated with the expression of PTGS1 and PGE1, while negatively correlated with the expression of miR-512. The findings of this study demonstrated that deregulation of lncRNA-HULC/miR-512/PTGS1/PGE1 might be involved in the pathogenesis of CIN.
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Affiliation(s)
- Liang Zhang
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China
| | - Pan Li
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China
| | - Bi-Li Zhang
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China.
| | - Man-Li Yu
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China
| | - Rong-Liang Xu
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China
| | - Hong Wu
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China
| | - Shao-Ping Chen
- Department of Cardiology, The First Affiliated Hospital of the Second Military Medical University, No. 168 Changhai Road, Yangpu District, Shanghai, People's Republic of China
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Ho MY, Liang SM, Hung SW, Liang CM. Retraction: MIG-7 Controls COX-2/PGE2-Mediated Lung Cancer Metastasis. Cancer Res 2019; 79:4553. [PMID: 31481422 DOI: 10.1158/0008-5472.can-19-2048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chen JJ, Xiao ZJ, Meng X, Wang Y, Yu MK, Huang WQ, Sun X, Chen H, Duan YG, Jiang X, Wong MP, Chan HC, Zou F, Ruan YC. MRP4 sustains Wnt/β-catenin signaling for pregnancy, endometriosis and endometrial cancer. Am J Cancer Res 2019; 9:5049-5064. [PMID: 31410201 PMCID: PMC6691374 DOI: 10.7150/thno.32097] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 05/08/2019] [Indexed: 12/13/2022] Open
Abstract
Rationale: Abnormal Wnt/β-catenin signaling in the endometrium can lead to both embryo implantation failure and severe pathogenic changes of the endometrium such as endometrial cancer and endometriosis. However, how Wnt/β-catenin signaling is regulated in the endometrium remains elusive. We explored possible regulation of Wnt/β-catenin signaling by multi-drug resistance protein 4 (MRP4), a potential target in cancer chemotherapy, and investigated the mechanism. Methods: Knockdown of MRP4 was performed in human endometrial cells in vitro or in a mouse embryo-implantation model in vivo. Immunoprecipitation, immunoblotting and immunofluorescence were used to assess protein interaction and stability. Wnt/β-catenin signaling was assessed by TOPflash reporter assay and quantitative PCR array. Normal and endometriotic human endometrial tissues were examined. Data from human microarray or RNAseq databases of more than 100 participants with endometriosis, endometrial cancer or IVF were analyzed. In vitro and in vivo tumorigenesis was performed. Results: MRP4-knockdown, but not its transporter-function-inhibition, accelerates β-catenin degradation in human endometrial cells. MRP4 and β-catenin are co-localized and co-immunoprecipitated in mouse and human endometrium. MRP4-knockdown in mouse uterus reduces β-catenin levels, downregulates a series of Wnt/β-catenin target genes and impairs embryo implantation, which are all reversed by blocking β-catenin degradation. Analysis of human endometrial biopsy samples and available databases reveals significant and positive correlations of MRP4 with β-catenin and Wnt/β-catenin target genes in the receptive endometrium in IVF, ectopic endometriotic lesions and endometrial cancers. Knockdown of MRP4 also inhibits in vitro and in vivo endometrial tumorigenesis. Conclusion: A previously undefined role of MRP4 in stabilizing β-catenin to sustain Wnt/β-catenin signaling in endometrial cells is revealed for both embryo implantation and endometrial disorders, suggesting MRP4 as a theranostic target for endometrial diseases associated with Wnt/β-catenin signaling abnormality.
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7
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Lucotti S, Cerutti C, Soyer M, Gil-Bernabé AM, Gomes AL, Allen PD, Smart S, Markelc B, Watson K, Armstrong PC, Mitchell JA, Warner TD, Ridley AJ, Muschel RJ. Aspirin blocks formation of metastatic intravascular niches by inhibiting platelet-derived COX-1/thromboxane A2. J Clin Invest 2019; 129:1845-1862. [PMID: 30907747 PMCID: PMC6486338 DOI: 10.1172/jci121985] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 02/13/2019] [Indexed: 12/13/2022] Open
Abstract
Because metastasis is associated with the majority of cancer-related deaths, its prevention is a clinical aspiration. Prostanoids are a large family of bioactive lipids derived from the activity of cyclooxygenase-1 (COX-1) and COX-2. Aspirin impairs the biosynthesis of all prostanoids through the irreversible inhibition of both COX isoforms. Long-term administration of aspirin leads to reduced distant metastases in murine models and clinical trials, but the COX isoform, downstream prostanoid, and cell compartment responsible for this effect are yet to be determined. Here, we have shown that aspirin dramatically reduced lung metastasis through inhibition of COX-1 while the cancer cells remained intravascular and that inhibition of platelet COX-1 alone was sufficient to impair metastasis. Thromboxane A2 (TXA2) was the prostanoid product of COX-1 responsible for this antimetastatic effect. Inhibition of the COX-1/TXA2 pathway in platelets decreased aggregation of platelets on tumor cells, endothelial activation, tumor cell adhesion to the endothelium, and recruitment of metastasis-promoting monocytes/macrophages, and diminished the formation of a premetastatic niche. Thus, platelet-derived TXA2 orchestrates the generation of a favorable intravascular metastatic niche that promotes tumor cell seeding and identifies COX-1/TXA2 signaling as a target for the prevention of metastasis.
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Affiliation(s)
- Serena Lucotti
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Camilla Cerutti
- Randall Division of Cell and Molecular Biophysics, King’s College London, New Hunt’s House, Guy’s Campus, London, United Kingdom
| | - Magali Soyer
- Randall Division of Cell and Molecular Biophysics, King’s College London, New Hunt’s House, Guy’s Campus, London, United Kingdom
| | - Ana M. Gil-Bernabé
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Ana L. Gomes
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Philip D. Allen
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Sean Smart
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Bostjan Markelc
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Karla Watson
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Paul C. Armstrong
- Centre for Immunobiology, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Jane A. Mitchell
- Cardiothoracic Pharmacology, Vascular Biology, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Timothy D. Warner
- Centre for Immunobiology, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Anne J. Ridley
- Randall Division of Cell and Molecular Biophysics, King’s College London, New Hunt’s House, Guy’s Campus, London, United Kingdom
| | - Ruth J. Muschel
- Cancer Research UK and MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
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Li BL, Lu W, Qu JJ, Ye L, Du GQ, Wan XP. Loss of exosomal miR-148b from cancer-associated fibroblasts promotes endometrial cancer cell invasion and cancer metastasis. J Cell Physiol 2019; 234:2943-2953. [PMID: 30146796 DOI: 10.1002/jcp.27111] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/29/2018] [Indexed: 12/21/2022]
Abstract
Cancer-associated fibroblasts (CAFs) play crucial roles in tumor progression, given the dependence of cancer cells on stromal support. Therefore, understanding how CAFs communicate with endometrial cancer cell in tumor environment is important for endometrial cancer therapy. Exosomes, which contain proteins and noncoding RNA, are identified as an important mediator of cell-cell communication. However, the function of exosomes in endometrial cancer metastasis remains poorly understood. In the current study we found that CAF-derived exosomes significantly promoted endometrial cancer cell invasion comparing to those from normal fibroblasts (NFs). We identified a significant decrease of miR-148b in CAFs and CAFs-derived exosomes. By exogenously transfect microRNAs, we demonstrated that miR-148b could be transferred from CAFs to endometrial cancer cell through exosomes. In vitro and in vivo studies further revealed that miR-148b functioned as a tumor suppressor by directly binding to its downstream target gene, DNMT1 to suppress endometrial cancer metastasis. In endometrial cancer DNMT1 presented a potential role in enhancing cancer cell metastasis by inducing epithelial-mesenchymal transition (EMT). Therefore, downregulated miR-148b induced EMT of endometrial cancer cell as a result of relieving the suppression of DNMT1. Taken together, these results suggest that CAFs-mediated endometrial cancer progression is partially related to the loss of miR-148b in the exosomes of CAFs and promoting the transfer of stromal cell-derived miR-148b might be a potential treatment to prevent endometrial cancer progression.
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Affiliation(s)
- Bi-Lan Li
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wen Lu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun-Jie Qu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lei Ye
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Gui-Qiang Du
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiao-Ping Wan
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
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Ou R, Zhu L, Zhao L, Li W, Tao F, Lu Y, He Q, Li J, Ren Y, Xu Y. HPV16 E7-induced upregulation of KDM2A promotes cervical cancer progression by regulating miR-132-radixin pathway. J Cell Physiol 2018; 234:2659-2671. [PMID: 30132864 DOI: 10.1002/jcp.27080] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/28/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND Human papillomavirus (HPV) infection and viral proteins expression cause a number of epigenetic alterations leading to cervical carcinogenesis. The recent discovery of a large amount of histone methylation modifiers reveals important roles of these enzymes in regulating tumor progression. METHODS The changes in expression of 48 histone methylation modifiers were assessed following knockdown of HPV16 E7 in CaSki cells. Lysine-specific demethylase 2A (KDM2A)-regulated microRNAs (miRNAs) in cervical cancer pathogenesis were disclosed using quantitative real-time polymerase chain reaction. The function of KDM2A-miRNAs on cervical cancer was investigated in vitro and in vivo. RESULTS Upregulation of KDM2A induced by HPV16 E7 promotes cervical cancer cell proliferation and invasion and is correlated with poor prognosis in patients with cervical cancer. KDM2A physically interacts with the promoter of miR-132 and suppresses its expression by removing the mono or dimethyl group from H3K36 at the miR-132 locus. Functionally, miR-132 represses cancer cell proliferation and invasion by inhibiting radixin (RDX). Upregulated KDM2A promotes cervical cancer progression by repressing miR-132, which results in a derepression of RDX. Therefore, KDM2A functions as a tumor activator in cervical cancer pathogenesis by binding miR-132 promoter and abrogating its tumor suppressive function. CONCLUSION Our results suggest a function for KDM2A in cervical cancer progression and suggest its candidacy as a new prognostic biomarker and target for clinical management of cervical cancer.
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Affiliation(s)
- Rongying Ou
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Linyu Zhu
- Department of Dermatovenereology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Liang Zhao
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Division of PET/CT, Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wenfeng Li
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Radiation Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fengxing Tao
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Dermatovenereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yiyi Lu
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Dermatovenereology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qin He
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jianrong Li
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
| | - Yi Ren
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, Florida
| | - Yunsheng Xu
- Laboratory for Advanced Interdisciplinary Research, Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Dermatovenereology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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Angiopoietin-like protein 3 blocks nuclear import of FAK and contributes to sorafenib response. Br J Cancer 2018; 119:450-461. [PMID: 30033448 PMCID: PMC6134083 DOI: 10.1038/s41416-018-0189-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/11/2018] [Accepted: 06/25/2018] [Indexed: 01/08/2023] Open
Abstract
Background Poor drug response of sorafenib is a major challenge which reduces clinical benefit of renal cell carcinoma (RCC) patients. It is therefore of great clinical significance to elucidate the underlying mechanism to restore the therapeutic response to sorafenib. Methods Angiopoietin-like protein 3 (ANGPTL3) protein levels were measured by western blot and immunohistochemistry in two cohorts of RCC patients. Loss-of-function and gain-of-function experiments were performed to investigate the biological roles of ANGPTL3 in response to sorafenib treatment in RCC cells. Human proteome microarray and immunoprecipitation analysis were performed to explore the molecular mechanisms underlying the functions of ANGPTL3. Results ANGPTL3 was upregulated in sorafenib-responsive RCC, which correlated with clinically good sorafenib response. Knockdown of ANGPTL3 conferred sorafenib-tolerance traits to RCC cells, whereas overexpression of ANGPTL3 restored sorafenib sensitivity in RCC cells. Mechanistically, ANGPTL3 bound to Focal Adhesion Kinase(FAK) and restained sorafenib induced nuclear translocation of FAK, leading to attenuate the ubiquitination of p53, which contributed to cellular apoptosis and enhanced sorafenib response. Conclusions ANGPTL3 may be a novel predictor for the response of sorafenib therapy in RCC patients, and a potential target in improving its therapeutic effect.
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11
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Xie W, Lu J, Lu Q, Wang X, Long H, Huang J, Guo Z. Matrine inhibits the proliferation and migration of lung cancer cells through regulation of the protein kinase B/glycogen synthase kinase-3β signaling pathways. Exp Ther Med 2018; 16:723-729. [PMID: 30112033 PMCID: PMC6090456 DOI: 10.3892/etm.2018.6266] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 02/02/2018] [Indexed: 12/24/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide. Despite recent advances in treatment, lung cancer remains an incurable disease. Matrine, an active compound isolated from Sophora flavescens, has been demonstrated to inhibit proliferation and induce apoptosis of tumor cells. However, the protective effects and molecular mechanisms of matrine in lung cancer remain elusive. In the present study, the lung cancer cells H1299 and A549 were used to investigate how matrine affects the proliferation, migration and apoptosis of lung cancer cells in vitro. It was demonstrated that matrine is able to significantly suppress the proliferation and colony formation of lung cancer cells in vitro. Using cell apoptosis analysis, wound-healing and Transwell assays, it was demonstrated that matrine induced cellular apoptosis and inhibited the migration of lung cancer cells. Further experiments revealed that matrine significantly suppressed the phosphorylation of protein kinase B (Akt) and glycogen synthase kinase-3β (GSK-3β). The present results suggested that matrine inhibits lung cancer cell proliferation, and induces cell apoptosis by suppressing the Akt/GSK-3β signaling pathway, which demonstrated that matrine may have therapeutic potential for lung cancer.
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Affiliation(s)
- Wang Xie
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Jingjing Lu
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Qingchun Lu
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Xian Wang
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Haihu Long
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Jianhao Huang
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Zhongliang Guo
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
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12
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Sha J, Han Q, Chi C, Zhu Y, Pan J, Dong B, Huang Y, Xia W, Xue W. PRKAR2B promotes prostate cancer metastasis by activating Wnt/β-catenin and inducing epithelial-mesenchymal transition. J Cell Biochem 2018; 119:7319-7327. [PMID: 29761841 DOI: 10.1002/jcb.27030] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/05/2018] [Indexed: 01/11/2023]
Abstract
Castration-resistant prostate cancers (CRPC) that occur after the failure of androgen-blocking therapies cause most of the deaths in prostate cancer (PCa) patients. In a previous study we identified that PRKAR2B expression is upregulated in CRPC and possesses potentials to develop CRPC. Here we further investigated the underlying mechanism of PRKAR2B in regulating prostate cancer metastasis. We established an androgen-independent LNCaPcell line (LNCaP-AI), and investigated the function of PRKAR2B on regulating cell invasion in vitro and in vivo. We found that PRKAR2B expression was markedly increased in LNCaP-AI cells and metastatic CRPC (mCRPC) tissues compared to LNCaP cells and primary PCa specimens, respectively. PRKAR2B level was significantly correlated with the Gleason score and lymph nodes metastasis in PCa. In vitro, PRKAR2B overexpression promoted cell invasion, whereas knockdown of PRKAR2B in CRPC cells inhibited cell invasion. PRKAR2B overexpression also promoted tumor metastasis in vivo. PRKAR2B resulted in a decreased expression of E-cadherin and an increased expression of Vimentin, N-cadherin, Fibronectin, indicating that PRKAR2B induced epithelial-mesenchymal transition (EMT). PRKAR2B activated Wnt/β-catenin signaling in CRPC cells. More important, inhibition of Wnt/β-catenin attenuated PRKAR2B-induced EMT and cancer cells invasion. Our results provided novel insights to PRKAR2B-driven CRPC cell invasion and indicated that PRKAR2B might be served as a potential target for CRPC therapy.
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Affiliation(s)
- Jianjun Sha
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Qing Han
- School of Biomedical Engineering, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Chenfei Chi
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Yinjie Zhu
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Jiahua Pan
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Baijun Dong
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Yiran Huang
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Weiliang Xia
- School of Biomedical Engineering, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Wei Xue
- Department of Urology, RenJi Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China
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13
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Ren K, Zhang J, Gu X, Wu S, Shi X, Ni Y, Chen Y, Lu J, Gao Z, Wang C, Yao N. Migration-inducing gene-7 independently predicts poor prognosis of human osteosarcoma and is associated with vasculogenic mimicry. Exp Cell Res 2018; 369:80-89. [PMID: 29750896 DOI: 10.1016/j.yexcr.2018.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 05/06/2018] [Accepted: 05/07/2018] [Indexed: 12/19/2022]
Abstract
Vasculogenic mimicry (VM) is a special type of vascular channel formed by tumor cells without endothelial cell participation. Migration-inducing gene 7 (MIG-7) plays an important role in regulating VM. In this study, immunohistochemical staining was used to detect MIG-7 in tissue specimens from 141 primary osteosarcoma patients, and the relationship between MIG-7 and VM was examined. Survival analysis were performed to evaluate the prognoses. MIG-7 knockdown osteosarcoma cells were used for cell proliferation, apoptosis, migration, invasiveness and VM formation assays. A spontaneously metastasizing cell line-derived orthotopic xenograft mouse model was established to evaluate the effect of MIG-7 knockdown on tumorigenesis, VM formation and lung metastasis. MIG-7 expression was associated with VM formation. There were significant differences in overall and metastasis-free survival between the MIG-7-positive and MIG-7-negative groups. The MIG-7 expression was shown to be an independent indicator of both overall and metastasis-free survival. In vitro knockdown of MIG-7 dramatically reduced migration, invasion and VM formation in osteosarcoma cells without any significant effect on cell proliferation and apoptosis. MIG-7 knockdown also exhibited potent antitumor, antimetastasis and anti-VM effects in the orthotopic mouse model of 143B osteosarcoma. Therefore, MIG-7 serves as an independent unfavorable prognostic indicator in osteosarcoma patients and MIG-7 is an important mediator of osteosarcoma VM formation.
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Affiliation(s)
- Ke Ren
- Department of Orthopaedics, Zhongda Hospital, Southeast University, Nanjing 210009, Jiangsu Province, PR China
| | - Jian Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No.100, Shizi Street, Hongshan Road, Nanjing 210028, Jiangsu Province, PR China; Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu Province, PR China
| | - Xiaojie Gu
- Institute of Biotechnology, School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning Province, PR China
| | - Sujia Wu
- Jinling Hospital, Department of Orthopedics, Nanjing University, School of Medicine, Nanjing 210002, Jiangsu Province, PR China
| | - Xin Shi
- Jinling Hospital, Department of Orthopedics, Nanjing University, School of Medicine, Nanjing 210002, Jiangsu Province, PR China
| | - Yicheng Ni
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No.100, Shizi Street, Hongshan Road, Nanjing 210028, Jiangsu Province, PR China; Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu Province, PR China; Department of Radiology, Faculty of Medicine, K.U. Leuven, Leuven 3000, Belgium
| | - Yong Chen
- Jinling Hospital, Department of Orthopedics, Nanjing University, School of Medicine, Nanjing 210002, Jiangsu Province, PR China
| | - Jun Lu
- Department of Orthopaedics, Zhongda Hospital, Southeast University, Nanjing 210009, Jiangsu Province, PR China
| | - Zengxin Gao
- Department of Orthopaedics, Zhongda Hospital, Southeast University, Nanjing 210009, Jiangsu Province, PR China
| | - Chen Wang
- Department of Orthopaedics, Zhongda Hospital, Southeast University, Nanjing 210009, Jiangsu Province, PR China.
| | - Nan Yao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No.100, Shizi Street, Hongshan Road, Nanjing 210028, Jiangsu Province, PR China; Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu Province, PR China.
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14
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Jansen SR, Poppinga WJ, de Jager W, Lezoualc'h F, Cheng X, Wieland T, Yarwood SJ, Gosens R, Schmidt M. Epac1 links prostaglandin E2 to β-catenin-dependent transcription during epithelial-to-mesenchymal transition. Oncotarget 2018; 7:46354-46370. [PMID: 27344171 PMCID: PMC5216803 DOI: 10.18632/oncotarget.10128] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/02/2016] [Indexed: 01/16/2023] Open
Abstract
In epithelial cells, β-catenin is localized at cell-cell junctions where it stabilizes adherens junctions. When these junctions are disrupted, β-catenin can translocate to the nucleus where it functions as a transcriptional cofactor. Recent research has indicated that PGE2 enhances the nuclear function of β-catenin through cyclic AMP. Here, we aim to study the role of the cyclic AMP effector Epac in β-catenin activation by PGE2 in non-small cell lung carcinoma cells. We show that PGE2 induces a down-regulation of E-cadherin, promotes cell migration and enhances β-catenin translocation to the nucleus. This results in β-catenin-dependent gene transcription. We also observed increased expression of Epac1. Inhibition of Epac1 activity using the CE3F4 compound or Epac1 siRNA abolished the effects of PGE2 on β-catenin. Further, we observed that Epac1 and β-catenin associate together. Expression of an Epac1 mutant with a deletion in the nuclear pore localization sequence prevents this association. Furthermore, the scaffold protein Ezrin was shown to be required to link Epac1 to β-catenin. This study indicates a novel role for Epac1 in PGE2-induced EMT and subsequent activation of β-catenin.
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Affiliation(s)
- Sepp R Jansen
- Department of Molecular Pharmacology, Groningen Research Institute for Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands.,Institute of Experimental and Clinical Pharmacology and Toxicology, Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Wilfred J Poppinga
- Department of Molecular Pharmacology, Groningen Research Institute for Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands
| | - Wim de Jager
- Department of Molecular Pharmacology, Groningen Research Institute for Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands
| | - Frank Lezoualc'h
- Inserm UMR-1048, Institut des Maladies Métaboliques et Cardiovasculaires, Université Toulouse III, Toulouse, France
| | - Xiaodong Cheng
- Department of Integrative Biology & Pharmacology, Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas, Houston, TX, USA
| | - Thomas Wieland
- Institute of Experimental and Clinical Pharmacology and Toxicology, Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Stephen J Yarwood
- School of Life Sciences, Heriot-Watt University, Edinburgh, Scotland
| | - Reinoud Gosens
- Department of Molecular Pharmacology, Groningen Research Institute for Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands
| | - Martina Schmidt
- Department of Molecular Pharmacology, Groningen Research Institute for Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands
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15
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Huang B, Yin M, Li X, Cao G, Qi J, Lou G, Sheng S, Kou J, Chen K, Yu B. Migration-inducing gene 7 promotes tumorigenesis and angiogenesis and independently predicts poor prognosis of epithelial ovarian cancer. Oncotarget 2018; 7:27552-66. [PMID: 27050277 PMCID: PMC5053671 DOI: 10.18632/oncotarget.8487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/18/2016] [Indexed: 11/25/2022] Open
Abstract
Epithelial ovarian carcinomas (EOC) cause more mortality than any other cancer of the female reproductive system. New therapeutic approaches to reduce EOC mortality have been largely unsuccessful due to the poor understanding of the mechanisms underlying EOC proliferation and metastasis. Progress in EOC treatment is further hampered by a lack of reliable prognostic biomarkers for early risk assessment. In this study, we identify that Migration-Inducting Gene 7 (MIG-7) is specifically induced in human EOC tissues but not normal ovaries or ovarian cyst. Ovarian MIG-7 expression strongly correlated with EOC progression. Elevated MIG-7 level at the time of primary cytoreductive surgery was a strong and independent predictor of poor survival of EOC patients. Cell and murine xenograft models showed that MIG-7 was required for EOC proliferation and invasion, and MIG-7 enhanced EOC-associated angiogenesis by promoting the expression of vascular endothelial growth factor. Inhibiting MIG-7 by RNA interference in grafted EOC cells retarded tumor growth, angiogenesis and improved host survival, and suppressing MIG-7 expression with a small molecule inhibitor D-39 identified from the medicinal plant Liriope muscari mitigated EOC growth and invasion and specifically abrogated the expression of vascular endothelial growth factor. Our data not only reveal a critical function of MIG-7 in EOC growth and metastasis and support MIG-7 as an independent prognostic biomarker for EOC, but also demonstrate that therapeutic targeting of MIG-7 is likely beneficial in the treatment of EOC.
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Affiliation(s)
- Bihui Huang
- Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut, USA.,Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA.,Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Detroit, Michigan, USA
| | - Mingzhu Yin
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China.,Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Xia Li
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.,Yale Stem Cell Center, Yale University, New Haven, Connecticut, USA
| | - Guosheng Cao
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Jin Qi
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Ge Lou
- Department of Gynecologic Oncology, The Affiliated Cancer Hospital of Harbin Medical University, Harbin, China
| | - Shijie Sheng
- Department of Pathology, Wayne State University, Detroit, Michigan, USA.,Tumor Biology and Microenvironment Program, Barbara Ann Karmanos Cancer Center and Department of Oncology, Wayne State University, Detroit, Michigan, USA
| | - Junping Kou
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Kang Chen
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA.,Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Detroit, Michigan, USA.,Tumor Biology and Microenvironment Program, Barbara Ann Karmanos Cancer Center and Department of Oncology, Wayne State University, Detroit, Michigan, USA.,Department of Immunology and Microbiology, Wayne State University, Detroit, Michigan, USA.,Mucosal Immunology Studies Team, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Boyang Yu
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
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16
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Ho MY, Liang CM, Liang SM. PATZ1 induces PP4R2 to form a negative feedback loop on IKK/NF-κB signaling in lung cancer. Oncotarget 2018; 7:52255-52269. [PMID: 27391343 PMCID: PMC5239549 DOI: 10.18632/oncotarget.10427] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/17/2016] [Indexed: 11/25/2022] Open
Abstract
Activation of IKK enhances NF-κB signaling to facilitate cancer cell migration, invasion and metastasis. Here, we uncover the existence of a negative feedback loop of IKK. The transcription factor PATZ1 induces protein phosphatase-4 (PP4) regulatory subunit 2 (PP4R2) in an IKK-dependent manner. PP4R2 enhances the binding of PP4 to phosphorylated IKK to inactivate IKK/NF-κB signaling during sustained stimulation by cellular stimuli such as growth factors and inflammatory mediators. Matched pair studies reveal that primary lung cancers express more PATZ1 and PP4R2 than lymph node metastases in patients. Ectopic PATZ1 decreases invasion/colonization of lung cancers and prolongs the survival of xenograft mice. These effects of PATZ1 are reversed by downregulating PP4R2. Our results suggest that PATZ1 and PP4R2 provide negative feedback on IKK/NF-κB signaling to prevent cancer cells from over-stimulation from cellular stimuli; a decline in PATZ1 and PP4R2 is functionally associated with cancer migration/invasion and agents enhancing PATZ1 and PP4R2 are worth exploring to prevent invasion/metastasis of lung cancers.
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Affiliation(s)
- Ming-Yi Ho
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC
| | - Chi-Ming Liang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC
| | - Shu-Mei Liang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC.,Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan, ROC
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17
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Abdelazeem AH, El-Saadi MT, Said EG, Youssif BGM, Omar HA, El-Moghazy SM. Novel diphenylthiazole derivatives with multi-target mechanism: Synthesis, docking study, anticancer and anti-inflammatory activities. Bioorg Chem 2017; 75:127-138. [PMID: 28938224 DOI: 10.1016/j.bioorg.2017.09.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/07/2017] [Accepted: 09/11/2017] [Indexed: 12/22/2022]
Abstract
Over the last few decades, a growing body of studies addressed the anticancer activity of NSAIDs, particularly selective COX-2 inhibitors. However, their exact molecular mechanism is still unclear and is not fully investigated. In this regard, a novel series of compounds bearing a COXs privilege scaffold, diphenyl thiazole, was synthesized and evaluated for their anticancer activity against a panel of cancer cell lines. The most active compounds 10b, 14a,b, 16a, 17a,b and 18b were evaluated in vitro for COX-1/COX-2 inhibitory activity. These compounds were suggested to exert their anticancer activity through a multi-target mechanism based on their structural features. Thus, compounds 10b and 17b with the least IC50 values in MTT assay were tested against three known anticancer targets; EGFR, BRAF and tubulin. Compounds 10b and 17b showed remarkable activity against EGFR with IC50 values of 0.4 and 0.2μM, respectively and good activity against BRAF with IC50 values of 1.3 and 1.7μM, respectively. In contrast, they showed weak activity in tubulin polymerization assay. The in vivo anti-inflammatory potential was assessed and interestingly, compound 17b was the most potent compound. Together, this study offers some important insights into the correlation between COXs inhibition and cancer treatment. Additionally, the results demonstrated the promising activity of these compounds with a multi-target mechanism as good candidates for further development into potential anticancer agents.
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Affiliation(s)
- Ahmed H Abdelazeem
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt.
| | - Mohammed T El-Saadi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Eman G Said
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Bahaa G M Youssif
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt; Department of Pharmaceutical Chemistry, College of Pharmacy, Aljouf University, Aljouf, Sakaka 2014, Saudi Arabia
| | - Hany A Omar
- Sharjah Institute for Medical Research and College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Pharmacology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Samir M El-Moghazy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
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18
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Abstract
Malignant carcinomas are often characterized by metastasis, the movement of carcinoma cells from a primary site to colonize distant organs. For metastasis to occur, carcinoma cells first must adopt a pro-migratory phenotype and move through the surrounding stroma towards a blood or lymphatic vessel. Currently, there are very limited possibilities to target these processes therapeutically. The family of Rho GTPases is an ubiquitously expressed division of GTP-binding proteins involved in the regulation of cytoskeletal dynamics and intracellular signaling. The best characterized members of the Rho family GTPases are RhoA, Rac1 and Cdc42. Abnormalities in Rho GTPase function have major consequences for cancer progression. Rho GTPase activation is driven by cell surface receptors that activate GTP exchange factors (GEFs) and GTPase-activating proteins (GAPs). In this review, we summarize our current knowledge on Rho GTPase function in the regulation of metastasis. We will focus on key discoveries in the regulation of epithelial-mesenchymal-transition (EMT), cell-cell junctions, formation of membrane protrusions, plasticity of cell migration and adaptation to a hypoxic environment. In addition, we will emphasize on crosstalk between Rho GTPase family members and other important oncogenic pathways, such as cyclic AMP-mediated signaling, canonical Wnt/β-catenin, Yes-associated protein (YAP) and hypoxia inducible factor 1α (Hif1α) and provide an overview of the advancements and challenges in developing pharmacological tools to target Rho GTPase and the aforementioned crosstalk in the context of cancer therapeutics.
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19
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Che D, Zhang S, Jing Z, Shang L, Jin S, Liu F, Shen J, Li Y, Hu J, Meng Q, Yu Y. Macrophages induce EMT to promote invasion of lung cancer cells through the IL-6-mediated COX-2/PGE 2/β-catenin signalling pathway. Mol Immunol 2017; 90:197-210. [PMID: 28837884 DOI: 10.1016/j.molimm.2017.06.018] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 05/27/2017] [Accepted: 06/03/2017] [Indexed: 01/21/2023]
Abstract
Infiltration of macrophages plays a critical role in the connection between inflammation and cancer invasion; however, the molecular mechanism that enables this crosstalk remains unclear. This paper investigates a molecular link between infiltration of macrophages and metastasis of lung cancer cells. In this study, the macrophage density and cyclooxygenase-2 (COX-2) protein were examined in surgical specimens by immunohistochemistry (IHC), and the prostaglandin E2 (PGE2) levels were determined in the blood of 30 non-small cell lung cancer (NSCLC) patients using enzyme-linked immunosorbent assay (ELISA). We demonstrated that macrophage infiltration was significantly associated with elevated tumour COX-2 expression and serum PGE2 levels in NSCLC patients. Interestingly, the COX-2 and PGE2 levels as well as macrophages were poor predictors of NSCLC patient survival. THP-1-derived macrophages were co-cultured in vitro with A549 and H1299 lung cancer cells. In the co-culture process, interleukin-6 (IL-6) induced the COX-2/PGE2 pathway in lung cancer cells, which subsequently promoted β-catenin translocation from the cytoplasm to the nucleus, resulting in epithelial-mesenchymal transition (EMT) and lung cancer cell invasion. Our findings show that the IL-6-dependent COX-2/PGE2 pathway induces EMT to promote invasion of tumour cells through β-catenin activation during the interaction between macrophages and lung cancer cells, which suggests that inhibition of COX-2/PGE2 or macrophages has the potential to suppress metastasis of lung cancer cells.
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Affiliation(s)
- Dehai Che
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Shuai Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Zihan Jing
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Lihua Shang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Shi Jin
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Fang Liu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Jing Shen
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Yue Li
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Jing Hu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China
| | - Qingwei Meng
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China.
| | - Yan Yu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road 150 of Nangang District, Harbin, Heilongjiang Province 150081, PR China.
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20
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Tan M, Zhang D, Zhang E, Xu D, Liu Z, Qiu J, Fan Y, Shen B. SENP2 suppresses epithelial-mesenchymal transition of bladder cancer cells through deSUMOylation of TGF-βRI. Mol Carcinog 2017; 56:2332-2341. [PMID: 28574613 DOI: 10.1002/mc.22687] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 05/20/2017] [Accepted: 06/01/2017] [Indexed: 12/21/2022]
Abstract
SUMO-specific protease 2 (SENP2) is a deSUMOylation protease that plays an important role in the regulation of transforming growth factor-β (TGF-β) signaling. Aberrant TGF-β signaling is common in human cancers and contributes to tumor metastasis by inducing an epithelial-mesenchymal transition (EMT). In previous studies, we demonstrated that SENP2 suppresses bladder cancer cell migration and invasion. However, little is known about whether SENP2 inhibits EMT by regulating TGF-β signaling in bladder cancer progression. Here, we investigated the role of SENP2 in regulating TGF-β signaling and bladder cancer metastasis in vitro and in vivo. We found that SENP2 is frequently downregulated in bladder cancer, especially in metastatic bladder cancer. SENP2 downregulation is associated with more aggressive phenotypes and poor patient outcomes. SENP2 knockdown results in a decrease of E-cadherin and an increase of N-cadherin and fibronectin at both transcript and protein levels, indicating that SENP2 negatively regulates EMT. On the contrary, SENP2 overexpression suppresses TGF-β signaling and TGF-β-induced EMT. We further demonstrated that SENP2 regulates TGF-β signaling partly through deSUMOylation of TGFβ receptor I (TGF-βRI). Functionally, SENP2 suppresses bladder cancer cell invasion in vitro and tumor metastasis in vivo, acts as a tumor suppressor gene in bladder cancer. Our results establish a function of SENP2 in metastatic progression and suggest its candidacy as a new prognostic biomarker and target for clinical management of bladder cancer.
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Affiliation(s)
- Mingyue Tan
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Dingguo Zhang
- Department of Urology, Shanghai Pudong New Area people's Hospital, Shanghai, P. R. China
| | - Encheng Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Dongliang Xu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Zhihong Liu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Jianxin Qiu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Yu Fan
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Bing Shen
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
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21
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Li JK, Chen C, Liu JY, Shi JZ, Liu SP, Liu B, Wu DS, Fang ZY, Bao Y, Jiang MM, Yuan JH, Qu L, Wang LH. Long noncoding RNA MRCCAT1 promotes metastasis of clear cell renal cell carcinoma via inhibiting NPR3 and activating p38-MAPK signaling. Mol Cancer 2017; 16:111. [PMID: 28659173 PMCID: PMC5490088 DOI: 10.1186/s12943-017-0681-0] [Citation(s) in RCA: 165] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/15/2017] [Indexed: 12/16/2022] Open
Abstract
Background Recent evidences showed that long noncoding RNAs (lncRNAs) are frequently dysregulated and play important roles in various cancers. Clear cell renal cell carcinoma (ccRCC) is one of the leading cause of cancer-related death, largely due to the metastasis of ccRCC. However, the clinical significances and roles of lncRNAs in metastatic ccRCC are still unknown. Methods lncRNA expression microarray analysis was performed to search the dysregulated lncRNA in metastatic ccRCC. quantitative real-time PCR was performed to measure the expression of lncRNAs in human ccRCC samples. Gain-of-function and loss-of-function experiments were performed to investigate the biological roles of lncRNAs on ccRCC cell proliferation, migration, invasion and in vivo metastasis. RNA pull-down, RNA immunoprecipitation, chromatin immunoprecipitation, and western blot were performed to explore the molecular mechanisms underlying the functions of lncRNAs. Results The microarray analysis identified a novel lncRNA termed metastatic renal cell carcinoma-associated transcript 1 (MRCCAT1), which is highly expressed in metastatic ccRCC tissues and associated with the metastatic properties of ccRCC. Multivariate Cox regression analysis revealed that MRCCAT1 is an independent prognostic factor for ccRCC patients. Overexpression of MRCCAT1 promotes ccRCC cells proliferation, migration, and invasion. Depletion of MRCCAT1 inhibites ccRCC cells proliferation, migration, and invasion in vitro, and ccRCC metastasis in vivo. Mechanistically, MRCCAT1 represses NPR3 transcription by recruiting PRC2 to NPR3 promoter, and subsequently activates p38-MAPK signaling pathway. Conclusions MRCCAT1 is a critical lncRNA that promotes ccRCC metastasis via inhibiting NPR3 and activating p38-MAPK signaling. Our results imply that MRCCAT1 could serve as a prognostic biomarker and therapeutic target for ccRCC. Electronic supplementary material The online version of this article (doi:10.1186/s12943-017-0681-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jia-Kuan Li
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.,Department of Urology, The 517th Hospital of People's Liberation Army, Shanxi, 036301, China
| | - Cheng Chen
- Department of Medical Oncology, Jinling Hospital, Nanjing University Clinical School of Medicine, Nanjing, 210002, China
| | - Jia-Yi Liu
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Jia-Zi Shi
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Shu-Peng Liu
- Central laboratory, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Bing Liu
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Deng-Shuang Wu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Zi-Yu Fang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Yi Bao
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Ming-Ming Jiang
- Clinical laboratory, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Ji-Hang Yuan
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China.
| | - Le Qu
- Department of Urology, Jinling Hospital, Nanjing University Clinical School of Medicine, Nanjing, 210002, China.
| | - Lin-Hui Wang
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
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22
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Zhang Y, Thayele Purayil H, Black JB, Fetto F, Lynch LD, Masannat JN, Daaka Y. Prostaglandin E2 receptor 4 mediates renal cell carcinoma intravasation and metastasis. Cancer Lett 2017; 391:50-58. [PMID: 28104442 DOI: 10.1016/j.canlet.2017.01.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/23/2016] [Accepted: 01/10/2017] [Indexed: 01/02/2023]
Abstract
Treatment options for metastatic renal cell carcinoma (RCC) are limited. In this study, we investigated impact of prostaglandin E2 (PGE2) receptor 4 (EP4) on RCC metastasis. We found that knockdown of EP4 in two RCC cell lines, ACHN and SN12C, does not affect xenograft tumor take or growth rate in mice, but reduces metastasis by decreasing tumor intravasation. Using chick chorioallantoic membrane (CAM) assay, we confirmed that blockade of EP4 signaling inhibits tumor intravasation. In vitro studies associated EP4 expression and activity with RCC cell transendothelial migration (TEM). Gene expression analysis and validation assays showed that EP4 knockdown decreases expression of CD24, a ligand to the adhesion molecule P-selectin. Forced expression of CD24 in EP4 knockdown RCC rescues TEM capacity of the cells. Pharmacologic inhibition or knockdown of endothelial P-selectin blocks EP4-mediated cancer cell TEM, and inhibition of P-selectin prevents RCC tumor intravasation in CAM assay. Our results demonstrate that inhibition of EP4 attenuates the RCC intravasation and metastasis by downregulating CD24 and that P-selectin participates in tumor intravasation, implying a potential for these molecules as therapeutic targets for advanced RCC treatment.
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Affiliation(s)
- Yushan Zhang
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Hamsa Thayele Purayil
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Joseph B Black
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Francis Fetto
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Lauren D Lynch
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Jude N Masannat
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Yehia Daaka
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL 32610, USA.
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23
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Kato S, Yokoyama S, Hayakawa Y, Li L, Iwakami Y, Sakurai H, Saiki I. P38 pathway as a key downstream signal of connective tissue growth factor to regulate metastatic potential in non-small-cell lung cancer. Cancer Sci 2016; 107:1416-1421. [PMID: 27403934 PMCID: PMC5084657 DOI: 10.1111/cas.13009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/22/2016] [Accepted: 07/08/2016] [Indexed: 12/23/2022] Open
Abstract
Although the secretory matricellular protein connective tissue growth factor (CTGF) has been reported to be related to lung cancer metastasis, the precise mechanism by which CTGF regulates lung cancer metastasis has not been elucidated. In the present study, we show the molecular link between CTGF secretion and the p38 pathway in the invasive and metastatic potential of non‐small‐cell lung cancer (NSCLC). Among three different human NSCLC cell lines (PC‐14, A549, and PC‐9), their in vitro invasiveness was inversely correlated with the level of CTGF secretion. By supplementing or reducing CTGF secretion in NSCLC culture, dysregulation of the invasive and metastatic potential of NSCLC cell lines was largely compensated. By focusing on the protein kinases that are known to be regulated by CTGF, we found that the p38 pathway is a key downstream signal of CTGF to regulate the metastatic potential of NSCLC. Importantly, a negative correlation between CTGF and phosphorylation status of p38 was identified in The Cancer Genome Atlas lung adenocarcinoma dataset. In the context of the clinical importance of our findings, we showed that p38 inhibitor, SB203580, reduced the metastatic potential of NSCLC secreting low levels of CTGF. Collectively, our present findings indicate that the CTGF/p38 axis is a novel therapeutic target of NSCLC metastasis, particularly NSCLC secreting low levels of CTGF.
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Affiliation(s)
- Shinichiro Kato
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Satoru Yokoyama
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan.
| | - Yoshihiro Hayakawa
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Luhui Li
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Yusuke Iwakami
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Hiroaki Sakurai
- Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Ikuo Saiki
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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24
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Lu XY, Wang ZC, Ren SZ, Shen FQ, Man RJ, Zhu HL. Coumarin sulfonamides derivatives as potent and selective COX-2 inhibitors with efficacy in suppressing cancer proliferation and metastasis. Bioorg Med Chem Lett 2016; 26:3491-8. [PMID: 27349331 DOI: 10.1016/j.bmcl.2016.06.037] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/12/2016] [Accepted: 06/15/2016] [Indexed: 12/21/2022]
Abstract
Cyclooxygenase-2 is frequently overexpression in malignant tumors and the product PGE2 promotes cancer cell progression and metastasis. We designed novel series of coumarin sulfonamides derivatives to improve biological activities of COX-2 inhibition and anticancer. Among them, compound 7t showed most powerful selective inhibitory and antiproliferative activity (IC50=0.09μM for COX-2, IC50=48.20μM for COX-1, IC50=0.36μM against HeLa cells), comparable to the control positive compound Celecoxib (0.31μM, 43.37μM, 7.79μM). Cancer cell apoptosis assay were performed and results indicated that compound 7t effectively fuels HeLa cells apoptosis in a dose and time-dependent manner. Moreover, 7t could significantly suppress cancer cell adhesion, migration and invasion which were essential process of cancer metastasis. Docking simulations results was further indicated that compound 7t could bind well to the COX-2 active site and guided a reasonable design of selective COX-2 inhibitor with anticancer activities in future.
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Affiliation(s)
- Xiao-Yuan Lu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, People's Republic of China
| | - Zhong-Chang Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, People's Republic of China
| | - Shen-Zhen Ren
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, People's Republic of China
| | - Fa-Qian Shen
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, People's Republic of China
| | - Ruo-Jun Man
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, People's Republic of China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, People's Republic of China.
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25
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Tapaneeyakorn S, Chantima W, Thepthai C, Dharakul T. Production, characterization, and in vitro effects of a novel monoclonal antibody against Mig-7. Biochem Biophys Res Commun 2016; 475:149-53. [PMID: 27181359 DOI: 10.1016/j.bbrc.2016.05.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 05/11/2016] [Indexed: 11/17/2022]
Abstract
Development of new cancer therapies based on specific recognition of molecules in cancer cells is a significant challenge, as this requires identification of such molecules (molecular targets) and subsequent development of high-affinity, selective binders (targeting molecules). While several molecular targets for cancer therapies are currently under evaluation in clinical trials, greater selectivity for cancer cells over normal cells is required to enhance efficacy. Migration-inducing gene 7 (Mig-7), a membrane protein found in various types of carcinoma cells, is a cancer-specific biomarker and a promising molecular target for targeted cancer therapies. The purpose of this study was to produce and characterize a novel monoclonal antibody (mAb) raised against an N-terminal peptide of human Mig-7 (Mig-7(1-30)). The Mig-7(1-30) peptide was conjugated with a KLH carrier protein for immunization, and the mAb specific to Mig-7 (STmAb-1) was produced using hybridoma technology. Western blot analysis showed that STmAb-1 specifically reacted with a 23-kDa Mig-7 protein expressed in cancer cell lines, and, crucially, not with primary human fibroblasts. The affinity constant (Kaff) of STmAb-1, as measured by non-competitive enzyme immunoassay, was 1.31 × 10(9) M(-1), indicating high mAb affinity against Mig-7. Immunofluorescence assays demonstrated that STmAb-1 could specifically recognize Mig-7 expressed in cancer cell lines, but not in primary human fibroblasts and keratinocytes. Moreover, STmAb-1 inhibited the growth of MCF7 and HeLa cell lines in contrast to primary human fibroblasts, highlighting its potential usefulness in the development of new cancer therapeutics.
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Affiliation(s)
- Satita Tapaneeyakorn
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand.
| | - Warangkana Chantima
- Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Charin Thepthai
- Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Tararaj Dharakul
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand; Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
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26
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Ma H, Lu T, Zhang X, Li C, Xiong J, Huang L, Liu P, Li Y, Liu L, Ding Z. HSPA12B: a novel facilitator of lung tumor growth. Oncotarget 2016; 6:9924-36. [PMID: 25909170 PMCID: PMC4496407 DOI: 10.18632/oncotarget.3533] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 02/17/2015] [Indexed: 12/21/2022] Open
Abstract
Lung tumor progression is regulated by proangiogenic factors. Heat shock protein A12B (HSPA12B) is a recently identified regulator of expression of proangiogenic factors. However, whether HSPA12B plays a role in lung tumor growth is unknown. To address this question, transgenic mice overexpressing HSPA12B (Tg) and wild-type littermates (WT) were implanted with Lewis lung cancer cells to induce lung tumorigenesis. Tg mice showed significantly higher number and bigger size of tumors than WT mice. Tg tumors exhibited increased angiogenesis and proliferation while reduced apoptosis compared with WT tumors. Interestingly, a significantly enhanced upregulation of Cox-2 was detected in Tg tumors than in WT tumors. Also, Tg tumors demonstrated upregulation of VEGF and angiopoietin-1, downregulation of AKAP12, and increased eNOS phosphorylation compared with WT tumors. Celecoxib, a selective Cox-2 inhibitor, suppressed the HSPA12B-induced increase in lung tumor burden. Moreover, celecoxib decreased angiogenesis and proliferation whereas increased apoptosis in Tg tumors. Additionally, celecoxib reduced angiopoietin-1 expression and eNOS phosphorylation but increased AKAP12 levels in Tg tumors. Our results indicate that HSPA12B stimulates lung tumor growth via a Cox-2-dependent mechanism. The present study identified HSPA12B as a novel facilitator of lung tumor growth and a potential therapeutic target for the treatment of lung cancer.
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Affiliation(s)
- He Ma
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Ting Lu
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Xiaojin Zhang
- Department of Geriatrics, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Chuanfu Li
- Department of Surgery, East Tennessee State University, Johnson City, TN, USA
| | - Jingwei Xiong
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Lei Huang
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Ping Liu
- Department of Oncology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Yuehua Li
- Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Li Liu
- Department of Geriatrics, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Zhengnian Ding
- Department of Anesthesiology, First Affiliated Hospital with Nanjing Medical University, Nanjing, China
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27
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Jia Y, Chen L, Ma Y, Zhang J, Xu N, Liao DJ. To Know How a Gene Works, We Need to Redefine It First but then, More Importantly, to Let the Cell Itself Decide How to Transcribe and Process Its RNAs. Int J Biol Sci 2015; 11:1413-23. [PMID: 26681921 PMCID: PMC4671999 DOI: 10.7150/ijbs.13436] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 10/12/2015] [Indexed: 12/15/2022] Open
Abstract
Recent genomic and ribonomic research reveals that our genome produces a stupendous amount of non-coding RNAs (ncRNAs), including antisense RNAs, and that many genes contain other gene(s) in their introns. Since ncRNAs either regulate the transcription, translation or stability of mRNAs or directly exert cellular functions, they should be regarded as the fourth category of RNAs, after ribosomal, messenger and transfer RNAs. These and other research advances challenge the current concept of gene and raise a question as to how we should redefine gene. We can either consider each tiny part of the classically-defined gene, such as each mRNA variant, as a “gene”, or, alternatively and oppositely, regard a whole genomic locus as a “gene” that may contain intron-embedded genes and produce different types of RNAs and proteins. Each of the two ways to redefine gene not only has its strengths and weaknesses but also has its particular concern on the methodology for the determination of the gene's function: Ectopic expression of complementary DNA (cDNA) in cells has in the past decades provided us with great deal of detail about the functions of individual mRNA variants, and will make the data less conflicting with each other if just a small part of a classically-defined gene is considered as a “gene”. On the other hand, genomic DNA (gDNA) will better help us in understanding the collective function of a genomic locus. In our opinion, we need to be more cautious in the use of cDNA and in the explanation of data resulting from cDNA, and, instead, should make delivery of gDNA into cells routine in determination of genes' functions, although this demands some technology renovation.
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Affiliation(s)
- Yuping Jia
- 1. Shandong Academy of Pharmaceutical Sciences, Ji'nan, Shandong, 250101, P.R. China
| | - Lichan Chen
- 2. Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Yukui Ma
- 1. Shandong Academy of Pharmaceutical Sciences, Ji'nan, Shandong, 250101, P.R. China
| | - Jian Zhang
- 3. Center for Translational Medicine, Pharmacology and Biomedical Sciences Building, Guangxi Medical University, 22 Shuangyong Road, Nanning, Guangxi 530021, P.R. China
| | - Ningzhi Xu
- 4. Laboratory of Cell and Molecular Biology, Cancer Institute, Chinese Academy of Medical Science, Beijing 100021, P.R. China
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28
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Li T, Xie J, Shen C, Cheng D, Shi Y, Wu Z, Deng X, Chen H, Shen B, Peng C, Li H, Zhan Q, Zhu Z. Upregulation of long noncoding RNA ZEB1-AS1 promotes tumor metastasis and predicts poor prognosis in hepatocellular carcinoma. Oncogene 2015; 35:1575-84. [PMID: 26073087 DOI: 10.1038/onc.2015.223] [Citation(s) in RCA: 232] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 03/10/2015] [Accepted: 03/30/2015] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related mortality worldwide. Despite progress in diagnostics and treatment of HCC, its prognosis remains poor. Emerging studies showed that long noncoding RNAs (lncRNAs) have crucial regulatory roles in cancer biology. In the current study, differentially expressed lncRNAs between HCC and paired non-tumor tissues were identified using microarrays. The effects of a specific differentially expressed lncRNA (termed ZEB1-AS1) on tumor progression were investigated in vitro and in vivo. We found that ZEB1-AS1 is frequently upregulated in HCC samples, especially in metastatic tumor tissues. DNA methylation analysis shows a tumor-specific ZEB1-AS1 promoter hypomethylation. Aberrant methylation is tightly correlated with overexpression of ZEB1-AS1 in HCC. Patients with ZEB1-AS1 hypomethylation or with high ZEB1-AS1 expression have poor recurrence-free survival. Functionally, ZEB1-AS1 promotes tumor growth and metastasis, acts as an oncogene in HCC. The ZEB1-AS1 gene is located in physical contiguity with ZEB1 and positively regulates the ZEB1 expression. ZEB1 inhibition partially abrogates ZEB1-AS1-induced epithelial to mesenchymal transition (EMT) and cancer metastasis. Our results provide novel insights into the function of lncRNA-driven hepatocarcinogenesis, highlight the important role of ZEB1-AS1 and ZEB1 in HCC progression, and indicate that ZEB1-AS1 may be served as a valuable prognostic biomarker for HCC.
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Affiliation(s)
- T Li
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - J Xie
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - C Shen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - D Cheng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Y Shi
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Z Wu
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - X Deng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - H Chen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - B Shen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - C Peng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - H Li
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Q Zhan
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Z Zhu
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, People's Republic of China
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29
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Li T, Xie J, Shen C, Cheng D, Shi Y, Wu Z, Deng X, Chen H, Shen B, Peng C, Li H, Zhan Q, Zhu Z. Amplification of Long Noncoding RNA ZFAS1 Promotes Metastasis in Hepatocellular Carcinoma. Cancer Res 2015; 75:3181-91. [PMID: 26069248 DOI: 10.1158/0008-5472.can-14-3721] [Citation(s) in RCA: 234] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 06/02/2015] [Indexed: 12/17/2022]
Abstract
Despite progress in the diagnostics and treatment of hepatocellular carcinoma (HCC), its prognosis remains poor. In this study, we globally assessed long noncoding RNAs (lncRNA) for contributions to HCC using publicly available microarray data, in vitro and in vivo assays. Here, we report that ZFAS1, encoding a lncRNA that is frequently amplified in HCC, is associated with intrahepatic and extrahepatic metastasis and poor prognosis of HCC. ZFAS1 functions as an oncogene in HCC progression by binding miR-150 and abrogating its tumor-suppressive function in this setting. miR-150 repressed HCC cell invasion by inhibiting ZEB1 and the matrix metalloproteinases MMP14 and MMP16. Conversely, ZFAS1 activated ZEB1, MMP14, and MMP16 expression, inhibiting these effects of miR-150. Our results establish a function for ZFAS1 in metastatic progression and suggest its candidacy as a new prognostic biomarker and target for clinical management of HCC.
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Affiliation(s)
- Tao Li
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Junjie Xie
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Chuan Shen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Dongfeng Cheng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Yuan Shi
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Zhichong Wu
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Xiaxing Deng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Hao Chen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Baiyong Shen
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Chenghong Peng
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Hongwei Li
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Qian Zhan
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Zhecheng Zhu
- Department of Hepato-Bilio-Pancreatic Surgery, Shanghai Institute of Digestive Surgery, Rui Jin Hospital affiliated with Shanghai Jiaotong University, Shanghai, China.
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Chang J, Xue M, Yang S, Yao B, Zhang B, Chen X, Pozzi A, Zhang MZ. Inhibition of 11β-Hydroxysteroid Dehydrogenase Type II Suppresses Lung Carcinogenesis by Blocking Tumor COX-2 Expression as Well as the ERK and mTOR Signaling Pathways. PLoS One 2015; 10:e0127030. [PMID: 26011146 PMCID: PMC4444260 DOI: 10.1371/journal.pone.0127030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 04/10/2015] [Indexed: 12/31/2022] Open
Abstract
Lung cancer is by far the leading cause of cancer death. Early diagnosis and prevention remain the best approach to reduce the overall morbidity and mortality. Experimental and clinical evidence have shown that cyclooxygenase-2 (COX-2) derived prostaglandin E2 (PGE2) contributes to lung tumorigenesis. COX-2 inhibitors suppress the development and progression of lung cancer. However, increased cardiovascular risks of COX-2 inhibitors limit their use in chemoprevention of lung cancers. Glucocorticoids are endogenous and potent COX-2 inhibitors, and their local actions are down-regulated by 11β–hydroxysteroid dehydrogenase type II (11ßHSD2)-mediated metabolism. We found that 11βHSD2 expression was increased in human lung cancers and experimental lung tumors. Inhibition of 11βHSD2 activity enhanced glucocorticoid-mediated COX-2 inhibition in human lung carcinoma cells. Furthermore, 11βHSD2 inhibition suppressed lung tumor growth and invasion in association with increased tissue active glucocorticoid levels, decreased COX-2 expression, inhibition of ERK and mTOR signaling pathways, increased tumor endoplasmic reticulum stress as well as increased lifespan. Therefore, 11βHSD2 inhibition represents a novel approach for lung cancer chemoprevention and therapy by increasing tumor glucocorticoid activity, which in turn selectively blocks local COX-2 activity and/or inhibits the ERK and mTOR signaling pathways.
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Affiliation(s)
- Jian Chang
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States of America
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Min Xue
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States of America
| | - Shilin Yang
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States of America
| | - Bing Yao
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States of America
| | - Bixiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Xiaoping Chen
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Ambra Pozzi
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States of America
| | - Ming-Zhi Zhang
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States of America
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, United States of America
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical College, Xuzhou, China
- * E-mail:
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Ho MY, Hung SW, Liang CM, Liang SM. Recombinant viral capsid protein VP1 suppresses lung cancer metastasis by inhibiting COX-2/PGE2 and MIG-7. Oncotarget 2015; 5:3931-43. [PMID: 25004182 PMCID: PMC4116532 DOI: 10.18632/oncotarget.2040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Recombinant capsid protein VP1 (rVP1) of foot-and-mouth disease virus binds to integrins to modulate Akt/GSK3-β signaling and suppress migration/invasion and metastasis of cancer cells, but the underlying molecular mechanism is unclear. Here, we showed that the rVP1-mediated inhibition of Akt/GSK3-β signaling and cell migration/invasion was accompanied by downregulation in phosphatidylinositol (3,4,5)-triphosphate (PIP3), integrin-linked kinase (ILK) and IKK/NF-κB signaling as well as suppression of COX-2/PGE2 and MIG-7. Addition of PIP3 or overexpression of ILK reversed the rVP1-induced inhibition of IKK/NF-κB signaling, COX-2 and MIG-7. The rVP1-mediated downregulation of COX-2/PGE2 and MIG-7 led to not only attenuation of epithelial-mesenchymal transition, MMP2 activity and invasion of lung cancer cells in vitro but also decreased tumor growth and metastasis of lung cancer in xenograft mice. Moreover, downregulation of COX-2/PGE2 and MIG-7 significantly prolonged the overall and disease-free survival of lung cancer-bearing mice. These results suggest that rVP1 inhibits cancer invasion/metastasis, partly if not mainly, via downregulating integrin/PI3K/Akt, ILK and IKK/NF-κB signaling to suppress expression of COX-2/PGE2 and MIG-7.
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Affiliation(s)
- Ming-Yi Ho
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC
| | | | | | - Shu-Mei Liang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC;Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan, ROC
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Ho MY, Liang CM, Liang SM. MIG-7 and phosphorylated prohibitin coordinately regulate lung cancer invasion/metastasis. Oncotarget 2015; 6:381-93. [PMID: 25575814 PMCID: PMC4381602 DOI: 10.18632/oncotarget.2804] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 11/15/2014] [Indexed: 11/25/2022] Open
Abstract
Growth factors and COX-2/PGE2 enhance lung cancer invasion/metastasis via PI3K/Akt and RAS/Raf. Here, we explored their mechanism of action further. We found first that higher levels of migration inducting gene-7 protein (MIG-7) and PHB phosphorylated at threonine 258 (phospho-PHBT258) are positively correlated with advanced stages of human lung cancer in tissue microarray. PGE2 or growth factors such as EGF, HGF and IGF-1 increased complex formation of phospho-PHBT258 with Ras, phospho-AktS473, phospho-Raf-1S338, MEKK1 and IKKα/βS176/180 in the raft domain transiently within 1 hour and MIG-7 in the cytosol 12-24 hours later. Association of phospho-PHBT258 with MEKK1 but not MEKK3 activates IKK/IκB/NF-κB and MEK/ERK to increase cellular COX-2/PGE2 and an E-cadherin suppressor Snail leading to enhancement of epithelial-mesenchymal transition (EMT) and lung cancer migration/invasion. MIG-7, on the other hand, was induced by growth factors and PGE2 via Akt/GSK-3β in a phospho-PHBT258 independent manner. MIG-7 increased two E-cadherin suppressors ZEB-1 and Twist to enhance EMT and cancer migration/invasion. Downregulating phospho-PHBT258 and MIG-7 had an additive effect on attenuating lung cancer invasion/metastasis and prolonging the survival of xenograft mice. Phospho-PHBT258 and MIG-7 may thus play complementary roles in the initiation and sustainment of the effects of growth factors and COX-2/PGE2 on cancer invasion/metastasis.
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Affiliation(s)
- Ming-Yi Ho
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC
| | - Chi-Ming Liang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC
| | - Shu-Mei Liang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan, ROC
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Lee MH, Kachroo P, Pagano PC, Yanagawa J, Wang G, Walser TC, Krysan K, Sharma S, John MS, Dubinett SM, Lee JM. Combination Treatment with Apricoxib and IL-27 Enhances Inhibition of Epithelial-Mesenchymal Transition in Human Lung Cancer Cells through a STAT1 Dominant Pathway. ACTA ACUST UNITED AC 2014; 6:468-477. [PMID: 26523208 DOI: 10.4172/1948-5956.1000310] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The cyclooxygenase 2 (COX-2) pathway has been implicated in the molecular pathogenesis of many malignancies, including lung cancer. Apricoxib, a selective COX-2 inhibitor, has been described to inhibit epithelial-mesenchymal transition (EMT) in human malignancies. The mechanism by which apricoxib may alter the tumor microenvironment by affecting EMT through other important signaling pathways is poorly defined. IL-27 has been shown to have anti-tumor activity and our recent study showed that IL-27 inhibited EMT through a STAT1 dominant pathway. OBJECTIVE The purpose of this study is to investigate the role of apricoxib combined with IL-27 in inhibiting lung carcinogenesis by modulation of EMT through STAT signaling. METHODS AND RESULTS Western blot analysis revealed that IL-27 stimulation of human non-small cell lung cancer (NSCLC) cell lines results in STAT1 and STAT3 activation, decreased Snail protein and mesenchymal markers (N-cadherin and vimentin) and a concomitant increase in expression of epithelial markers (E-cadherin, β-and γ-catenins), and inhibition of cell migration. The combination of apricoxib and IL-27 resulted in augmentation of STAT1 activation. However, IL-27 mediated STAT3 activation was decreased by the addition of apricoxib. STAT1 siRNA was used to determine the involvement of STAT1 pathway in the enhanced inhibition of EMT and cell migration by the combined IL-27 and apricoxib treatment. Pretreatment of cells with STAT1 siRNA inhibited the effect of combined IL-27 and apricoxib in the activation of STAT1 and STAT3. In addition, the augmented expression of epithelial markers, decreased expression mesenchymal markers, and inhibited cell migration by the combination treatment were also inhibited by STAT1 siRNA, suggesting that the STAT1 pathway is important in the enhanced effect from the combination treatment. CONCLUSION Combined apricoxib and IL-27 has an enhanced effect in inhibition of epithelial-mesenchymal transition and cell migration in human lung cancer cells through a STAT1 dominant pathway.
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Affiliation(s)
- Mi-Heon Lee
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Thoracic Surgery at the David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Puja Kachroo
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Pulmonary and Critical Care Medicine, USA ; Division of Thoracic Surgery at the David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Paul C Pagano
- Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Jane Yanagawa
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Thoracic Surgery at the David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Gerald Wang
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Pulmonary and Critical Care Medicine, USA
| | - Tonya C Walser
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Pulmonary and Critical Care Medicine, USA
| | - Kostyantyn Krysan
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Pulmonary and Critical Care Medicine, USA
| | - Sherven Sharma
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA ; Molecular Gene Medicine Laboratory, Veterans Affair Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Maie St John
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Steven M Dubinett
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Pulmonary and Critical Care Medicine, USA ; Molecular Gene Medicine Laboratory, Veterans Affair Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Jay M Lee
- Lung Cancer Research Program, Jonsson Comprehensive Cancer Center, USA ; Division of Pulmonary and Critical Care Medicine, USA ; Division of Thoracic Surgery at the David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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Kim MJ, Kim HS, Lee SH, Yang Y, Lee MS, Lim JS. NDRG2 controls COX-2/PGE₂-mediated breast cancer cell migration and invasion. Mol Cells 2014; 37:759-65. [PMID: 25256221 PMCID: PMC4213768 DOI: 10.14348/molcells.2014.0232] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 09/02/2014] [Accepted: 09/02/2014] [Indexed: 01/22/2023] Open
Abstract
N-myc downstream-regulated gene 2 (NDRG2), which is known to have tumor suppressor functions, is frequently down-regulated in breast cancers and potentially involved in preventing the migration and invasion of malignant tumor cells. In the present study, we examined the inhibitory effects of NDRG2 overexpression, specifically focusing on the role of cyclooxygenase-2 (COX-2) in the migration of breast cancer cells. NDRG2 overexpression in MDA-MB-231 cells inhibited the expression of the COX-2 mRNA and protein, the transcriptional activity of COX-2, and prostaglandin E2 (PGE2) production, which were induced by a treatment with phorbol-12-myristate-13-acetate (PMA). Nuclear transcription factor-κB (NF-κB) signaling attenuated by NDRG2 expression resulted in a decrease in PMA-induced COX-2 expression. Interestingly, the inhibition of COX-2 strongly suppressed PMA-stimulated migration and invasion in MDA-MB-231-NDRG2 cells. Moreover, siRNA-mediated knockdown of NDRG2 in MCF7 cells increased the COX-2 mRNA and protein expression levels and the PMA-induced COX-2 expression levels. Consistent with these results, the migration and invasion of MCF7 cells treated with NDRG2 siRNA were significantly enhanced following treatment with PMA. Taken together, our data show that the inhibition of NF-κB signaling by NDRG2 expression is able to suppress cell migration and invasion through the down-regulation of COX-2 expression.
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Affiliation(s)
- Myung-Jin Kim
- Department of Biological Science and the Research Center for Women’s Disease, Sookmyung Women’s University, Seoul 140-742, Korea
| | - Hak-Su Kim
- Department of Biological Science and the Research Center for Women’s Disease, Sookmyung Women’s University, Seoul 140-742, Korea
| | | | - Young Yang
- Department of Biological Science and the Research Center for Women’s Disease, Sookmyung Women’s University, Seoul 140-742, Korea
| | - Myeong-Sok Lee
- Department of Biological Science and the Research Center for Women’s Disease, Sookmyung Women’s University, Seoul 140-742, Korea
| | - Jong-Seok Lim
- Department of Biological Science and the Research Center for Women’s Disease, Sookmyung Women’s University, Seoul 140-742, Korea
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Vasculogenic mimicry: a new prognostic sign of human osteosarcoma. Hum Pathol 2014; 45:2120-9. [DOI: 10.1016/j.humpath.2014.06.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 06/13/2014] [Accepted: 06/19/2014] [Indexed: 02/07/2023]
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Zheng H, Li Y, Wang Y, Zhao H, Zhang J, Chai H, Tang T, Yue J, Guo AM, Yang J. Downregulation of COX-2 and CYP 4A signaling by isoliquiritigenin inhibits human breast cancer metastasis through preventing anoikis resistance, migration and invasion. Toxicol Appl Pharmacol 2014; 280:10-20. [PMID: 25094029 DOI: 10.1016/j.taap.2014.07.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 12/18/2022]
Abstract
Flavonoids exert extensive in vitro anti-invasive and in vivo anti-metastatic activities. Anoikis resistance occurs at multiple key stages of the metastatic cascade. Here, we demonstrate that isoliquiritigenin (ISL), a flavonoid from Glycyrrhiza glabra, inhibits human breast cancer metastasis by preventing anoikis resistance, migration and invasion through downregulating cyclooxygenase (COX)-2 and cytochrome P450 (CYP) 4A signaling. ISL induced anoikis in MDA-MB-231 and BT-549 human breast cancer cells as evidenced by flow cytometry and the detection of caspase cleavage. Moreover, ISL inhibited the mRNA expression of phospholipase A2, COX-2 and CYP 4A and decreased the secretion of prostaglandin E2 (PGE2) and 20-hydroxyeicosatetraenoic acid (20-HETE) in detached MDA-MB-231 cells. In addition, it decreased the levels of phospho-PI3K (Tyr(458)), phospho-PDK (Ser(241)) and phospho-Akt (Thr(308)). Conversely, the exogenous addition of PGE2, WIT003 (a 20-HETE analog) and an EP4 agonist (CAY10580) or overexpression of constitutively active Akt reversed ISL-induced anoikis. ISL exerted the in vitro anti-migratory and anti-invasive activities, whereas the addition of PGE2, WIT003 and CAY10580 or overexpression of constitutively active Akt reversed the in vitro anti-migratory and anti-invasive activities of ISL in MDA-MB-231 cells. Notably, ISL inhibited the in vivo lung metastasis of MDA-MB-231 cells, together with decreased intratumoral levels of PGE2, 20-HETE and phospho-Akt (Thr(308)). In conclusion, ISL inhibits breast cancer metastasis by preventing anoikis resistance, migration and invasion via downregulating COX-2 and CYP 4A signaling. It suggests that ISL could be a promising multi-target agent for preventing breast cancer metastasis, and anoikis could represent a novel mechanism through which flavonoids may exert the anti-metastatic activities.
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Affiliation(s)
- Hao Zheng
- Department of Pharmacology, School of Medicine, Wuhan University, Wuhan 430071, China
| | - Ying Li
- Department of Pharmacology, School of Medicine, Wuhan University, Wuhan 430071, China
| | - Yuzhong Wang
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Haixia Zhao
- Department of Pharmacology, School of Medicine, Wuhan University, Wuhan 430071, China
| | - Jing Zhang
- Animal Experimental Center of Wuhan University, Wuhan 430071, China
| | - Hongyan Chai
- Center for Gene Diagnosis, Zhongnan Hospital, Wuhan University, Wuhan 430071, China
| | - Tian Tang
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jiang Yue
- Department of Pharmacology, School of Medicine, Wuhan University, Wuhan 430071, China
| | - Austin M Guo
- Department of Pharmacology, School of Medicine, Wuhan University, Wuhan 430071, China; Department of Pharmacology, New York Medical College, Valhalla, NY 10595, USA.
| | - Jing Yang
- Department of Pharmacology, School of Medicine, Wuhan University, Wuhan 430071, China.
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Bai X, Yang Q, Shu W, Wang J, Zhang L, Ma J, Xia S, Zhang M, Cheng S, Wang Y, Leng J. Prostaglandin E2 upregulates β1 integrin expression via the E prostanoid 1 receptor/nuclear factor κ-light-chain-enhancer of activated B cells pathway in non-small-cell lung cancer cells. Mol Med Rep 2014; 9:1729-36. [PMID: 24584670 DOI: 10.3892/mmr.2014.2000] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 02/13/2014] [Indexed: 11/06/2022] Open
Abstract
The prostaglandin E2 (PGE2) E prostanoid (EP)1 receptor shown to be associated with lung cancer cell invasion. However, the mechanism of EP1 receptor-mediated cell migration remains to be elucidated. β1 integrin is an essential regulator of the tumorigenic properties of non-small-cell lung carcinoma (NSCLC) cells. To date, little is known regarding the association between the EP1 receptor and β1 integrin expression. The present study investigated the effect of EP1 receptor activation on β1 integrin expression and cell migration in NSCLC cells. A total of 34 patients with clinical diagnosis of NSCLC and 10 patients with benign disease were recruited for the present study. The expression levels of the EP1 receptor and β1 integrin expression were studied in resected lung tissue using immunohistochemistry. A statistical analysis was performed using Stata se12.0 software. The effects of PGE2, EP1 agonist 17-phenyl trinor-PGE2 (17-PT-PGE2) and the nuclear factor κ-B (NF-κB) inhibitor on β1 integrin expression were investigated on A549 cells. The expression of β1 integrin and the phosphorylation of NF-κB‑p65 Ser536 was investigated by western blot analysis. Cell migration was assessed by a transwell assay. The results demonstrated that β1 integrin and EP1 receptor expression exhibited a positive correlation of evident significance in the 44 samples. The in vitro migration assay revealed that cell migration was increased by 30% when the cells were treated with 5 µM 17-PT-PGE2 and that the pre-treatment of β1 integrin monoclonal antibody inhibited 17-PT-PGE2‑mediated cell migration completely. PGE2 and 17-PT-PGE2 treatment increased β1 integrin expression. RNA interference against the EP1 receptor blocked the PGE2-mediated β1 integrin expression in A549 cells. Treatment with 17-PT-PGE2 induced NF-κB activation, and the selective NF-κB inhibitor pyrrolidinedithiocarbamate inhibited 17-PT-PGE2-mediated β1 integrin expression. In conclusion, the present study indicated that the PGE2 EP1 receptor regulates β1 integrin expression and cell migration in NSCLC cells by activating the NF-κB signaling pathway. Targeting the PGE2/EP1/β1 integrin signaling pathway may aid in the development of new therapeutic strategies for the prevention and treatment of this type of cancer.
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Affiliation(s)
- Xiaoming Bai
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Qinyi Yang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Wei Shu
- Department of Periodontal, Institute of Stomatology, The Stomatological Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jie Wang
- Department of Pathology, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Li Zhang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Juan Ma
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Shukai Xia
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Min Zhang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Shanyu Cheng
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yipin Wang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jing Leng
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Fan Y, Shen B, Tan M, Mu X, Qin Y, Zhang F, Liu Y. TGF-β-induced upregulation of malat1 promotes bladder cancer metastasis by associating with suz12. Clin Cancer Res 2014; 20:1531-41. [PMID: 24449823 DOI: 10.1158/1078-0432.ccr-13-1455] [Citation(s) in RCA: 331] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE TGF-β promotes tumor invasion and metastasis by inducing an epithelial-mesenchymal transition (EMT). However, the underlying mechanisms causing this are not entirely clear. Long noncoding RNAs (lncRNA) have been shown to play important regulatory roles in cancer progression. The lncRNA malat1 (metastasis associated lung adenocarcinoma transcript 1) is a critical regulator of the metastasis phenotype of lung cancer cells. EXPERIMENTAL DESIGN We, therefore, investigated whether TGF-β regulates malat1 expression to promote tumor metastasis of bladder cancer. The expression levels of malat1 and EMT markers were assayed in specimens of bladder cancer. The role of malat1 in regulating bladder cancer metastasis was evaluated in cell and animal models. RESULTS TGF-β induces malat1 expression and EMT in bladder cancer cells. malat1 overexpression is significantly correlated with poor survival in patients with bladder cancer. malat1 and E-cadherin expression is negatively correlated in vitro and in vivo. malat1 knockdown inhibits TGF-β-induced EMT. malat1 is associated with suppressor of zeste 12 (suz12), and this association results in decrease of E-cadherin expression and increase of N-cadherin and fibronectin expression. Furthermore, targeted inhibition of malat1 or suz12 suppresses the migratory and invasive properties induced by TGF-β. Finally, we demonstrated that malat1 or suz12 knockdown inhibits tumor metastasis in animal models. CONCLUSION These data suggest that malat1 is an important mediator of TGF-β-induced EMT, and suggest that malat1 inhibition may represent a promising therapeutic option for suppressing bladder cancer progression.
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Affiliation(s)
- Yu Fan
- Authors' Affiliation: Department of Renal Transplantation and Urology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
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Zhang H, Cheng S, Zhang M, Ma X, Zhang L, Wang Y, Rong R, Ma J, Xia S, Du M, Shi F, Wang J, Yang Q, Bai X, Leng J. Prostaglandin E2 promotes hepatocellular carcinoma cell invasion through upregulation of YB-1 protein expression. Int J Oncol 2013; 44:769-80. [PMID: 24378923 DOI: 10.3892/ijo.2013.2234] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 11/21/2013] [Indexed: 12/20/2022] Open
Abstract
Prostaglandin E2 (PGE2) has been implicated in hepatocellular carcinoma cell invasion. Recently, it was reported that Y box-binding protein 1 (YB-1) is closely correlated with malignancy. This study was designed to examine the mechanisms by which PGE2 increases YB-1 expression and promotes HCC cell invasion. PGE2 greatly enhanced HCC cell invasion through upregulation of the YB-1 protein, and the EP1 receptor is mainly responsible for this regulation. Src and EGFR were both activated by PGE2, which in turn increased the phosphorylation levels of p44/42 MAPK. Src, EGFR and p44/42 MAPK were all involved in PGE2-induced YB-1 expression. Chemical inhibitors and RNAi analysis all confirmed the role of mTOR complex 1 in YB-1 expression induced by PGE2. Furthermore, YB-1 was able to regulate the expression of a series of EMT-associated genes, which indicated that YB-1 could have the potential to control the epithelial-mesenchymal transition process in HCC cells. These findings reveal that PGE2 upregulated YB-1 expression through the EP1/Src/EGFR/p44/42 MAPK/mTOR pathway, which greatly enhanced HCC cell invasion. This study for the first time describes the mechanisms through which PGE2 regulates YB-1 expression and promotes HCC cell invasion.
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Affiliation(s)
- Hai Zhang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Shanyu Cheng
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Min Zhang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Xiuping Ma
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Li Zhang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Yipin Wang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Rong Rong
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Juan Ma
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Shukai Xia
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Mingzhan Du
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Feng Shi
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Jie Wang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Qinyi Yang
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Xiaoming Bai
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
| | - Jing Leng
- Cancer Center, Department of Pathology, Nanjing Medical University, Nanjing 210029, P.R. China
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Zhang S, Da L, Yang X, Feng D, Yin R, Li M, Zhang Z, Jiang F, Xu L. Celecoxib potentially inhibits metastasis of lung cancer promoted by surgery in mice, via suppression of the PGE2-modulated β-catenin pathway. Toxicol Lett 2013; 225:201-7. [PMID: 24374173 DOI: 10.1016/j.toxlet.2013.12.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/05/2013] [Accepted: 12/20/2013] [Indexed: 10/25/2022]
Abstract
Surgery is the major treatment method for non-small cell lung cancer. It has been reported that plasma PGE2 level is increased following surgery and stress which promotes lung cancer metastasis. In the present study, two animal models were used to confirm the effects of exogenous and endogenous prostaglandin E2 (PGE2) on metastasis of lung cancer cells. We found that both PGE2 level and A549 metastasis were enhanced in mice with unilateral pulmonary resection following tail vein injection of lung cancer A549 cells. Both endogenous PGE2 level and pulmonary metastatic nodules were significantly reduced by celecoxib. A549 metastases were increased in mice after exogenous PGE2 injection. In the animal models, celecoxib inhibited lung cancer cell metastasis induced by exogenous PGE2. Therefore, we focused on the effects of celecoxib on the downstream pathway of PGE2 in vitro and found that celecoxib inhibited PGE2-induced A549 migration and invasion, which were evaluated by wound healing and Transwell experiments. The expression of protein and mRNA of MMP9 and E-cadherin following treatment with PGE2 were suppressed and increased by celecoxib, respectively; however, MMP2 showed no change. A549 cell invasion and up-regulation of the expression of MMP9 and down-regulation of E-cadherin induced by PGE2 were inhibited by FH535, an inhibitor of β-catenin. Deletion of β-catenin by siRNA abrogated celecoxib-induced inhibition of MMP9 up-regulation and E-cadherin down-regulation by treatment of PGE2. Furthermore, we found that the level of β-catenin together with GSK-3β phosphorylation was inhibited by celecoxib. In conclusion, celecoxib inhibits metastasis of A549 cells in the circulation enhanced by PGE2 after surgery by not only inhibiting endogenous PGE2 expression, but also by suppression downstream of PGE2 via the GSK-3β-β-catenin pathway.
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Affiliation(s)
- Shuai Zhang
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Liangshan Da
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Xin Yang
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Dongjie Feng
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Rong Yin
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Ming Li
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Zhi Zhang
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China
| | - Feng Jiang
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China.
| | - Lin Xu
- Jiangsu Key Laboratory of Tumor Molecular Biology and Translational Medicine, Thoracic Surgery Department, Jiangsu Cancer Hospital, 42 Baiziting, Nanjing 210009, People's Republic of China.
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Singh T, Katiyar SK. Honokiol inhibits non-small cell lung cancer cell migration by targeting PGE₂-mediated activation of β-catenin signaling. PLoS One 2013; 8:e60749. [PMID: 23580348 PMCID: PMC3620279 DOI: 10.1371/journal.pone.0060749] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 03/02/2013] [Indexed: 11/28/2022] Open
Abstract
Lung cancer remains a leading cause of death due to its metastasis to distant organs. We have examined the effect of honokiol, a bioactive constituent from the Magnolia plant, on human non-small cell lung cancer (NSCLC) cell migration and the molecular mechanisms underlying this effect. Using an in vitro cell migration assay, we found that treatment of A549, H1299, H460 and H226 NSCLC cells with honokiol resulted in inhibition of migration of these cells in a dose-dependent manner, which was associated with a reduction in the levels of cyclooxygenase-2 (COX-2) and prostaglandin E2 (PGE2). Celecoxib, a COX-2 inhibitor, also inhibited cell migration. Honokiol inhibited PGE2-enhanced migration of NSCLC cells, inhibited the activation of NF-κB/p65, an upstream regulator of COX-2, in A549 and H1299 cells, and treatment of cells with caffeic acid phenethyl ester, an inhibitor of NF-κB, also inhibited migration of NSCLC cells. PGE2 has been shown to activate β-catenin signaling, which contributes to cancer cell migration. Therefore, we checked the effect of honokiol on β-catenin signaling. It was observed that treatment of NSCLC cells with honokiol degraded cytosolic β-catenin, reduced nuclear accumulation of β-catenin and down-regulated matrix metalloproteinase (MMP)-2 and MMP-9, which are the down-stream targets of β-catenin and play a crucial role in cancer cell metastasis. Honokiol enhanced: (i) the levels of casein kinase-1α, glycogen synthase kinase-3β, and (ii) phosphorylation of β-catenin on critical residues Ser(45), Ser(33/37) and Thr(41). These events play important roles in degradation or inactivation of β-catenin. Treatment of celecoxib also reduced nuclear accumulation of β-catenin in NSCLC cells. FH535, an inhibitor of Wnt/β-catenin pathway, inhibited PGE2-enhanced cell migration of A549 and H1299 cells. These results indicate that honokiol inhibits non-small cell lung cancer cells migration by targeting PGE2-mediated activation of β-catenin signaling.
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Affiliation(s)
- Tripti Singh
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Santosh K. Katiyar
- Birmingham Veterans Affairs Medical Center, Birmingham, Alabama, United States of America
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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