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Tang K, Roca J, Chen R, Ansari A, Liang J. Thermodynamics of unfolding mechanisms of mouse mammary tumor virus pseudoknot from a coarse-grained loop-entropy model. J Biol Phys 2022; 48:129-150. [PMID: 35445347 DOI: 10.1007/s10867-022-09602-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 01/19/2022] [Indexed: 11/26/2022] Open
Abstract
Pseudoknotted RNA molecules play important biological roles that depend on their folded structure. To understand the underlying principles that determine their thermodynamics and folding/unfolding mechanisms, we carried out a study on a variant of the mouse mammary tumor virus pseudoknotted RNA (VPK), a widely studied model system for RNA pseudoknots. Our method is based on a coarse-grained discrete-state model and the algorithm of PK3D (pseudoknot structure predictor in three-dimensional space), with RNA loops explicitly constructed and their conformational entropic effects incorporated. Our loop entropy calculations are validated by accurately capturing previously measured melting temperatures of RNA hairpins with varying loop lengths. For each of the hairpins that constitutes the VPK, we identified alternative conformations that are more stable than the hairpin structures at low temperatures and predicted their populations at different temperatures. Our predictions were validated by thermodynamic experiments on these hairpins. We further computed the heat capacity profiles of VPK, which are in excellent agreement with available experimental data. Notably, our model provides detailed information on the unfolding mechanisms of pseudoknotted RNA. Analysis of the distribution of base-pairing probability of VPK reveals a cooperative unfolding mechanism instead of a simple sequential unfolding of first one stem and then the other. Specifically, we find a simultaneous "loosening" of both stems as the temperature is raised, whereby both stems become partially melted and co-exist during the unfolding process.
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Affiliation(s)
- Ke Tang
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, 851 S Morgan St, Chicago, 60607, IL, USA
| | - Jorjethe Roca
- Department of Physics, University of Illinois at Chicago, 845 W Taylor St, Chicago, 60607, IL, USA
- T. C. Jenkins Department of Biophysics, Johns Hopkins University, 3400 N. Charles St., Baltimore, 21218, MD, USA
| | - Rong Chen
- Department of Statistics, Rutgers University, 110 Frelinghuysen Rd, Piscataway, 08854, NJ, USA
| | - Anjum Ansari
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, 851 S Morgan St, Chicago, 60607, IL, USA.
- Department of Physics, University of Illinois at Chicago, 845 W Taylor St, Chicago, 60607, IL, USA.
| | - Jie Liang
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, 851 S Morgan St, Chicago, 60607, IL, USA.
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2
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Borowicz S, Principe DR, Dorman MJ, McHenry AJ, Sondarva G, Kumar S, Ananthanarayanan V, Simms PE, Hess A, Rana A. HAI-1 is an independent predictor of lung cancer mortality and is required for M1 macrophage polarization. PLoS One 2021; 16:e0252197. [PMID: 34185790 PMCID: PMC8241049 DOI: 10.1371/journal.pone.0252197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 05/06/2021] [Indexed: 11/18/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide. Though immune checkpoint inhibitors (ICIs) have revolutionized lung cancer therapy in recent years, there are several factors limiting the therapeutic efficacy of ICI-based immunotherapy in lung cancer. Recent evidence suggests that one such mechanism is the phenotypic shift of tumor-infiltrating macrophages away from an anti-tumor M1 phenotype and towards an anti-inflammatory and tumor-permissive M2 phenotype. Though this phenomenon is well documented, the means through which the lung tumor microenvironment (TME) usurps macrophage function are poorly described. Hepatocyte growth factor (HGF) is a known driver of both lung cancer pathobiology as well as M2 polarization, and its signaling is antagonized by the tumor suppressor gene HAI-1 (SPINT1). Using a combination of genomic databases, primary NSCLC specimens, and in vitro models, we determined that patients with loss of HAI-1 have a particularly poor prognosis, hallmarked by increased HGF expression and an M2-dominant immune infiltrate. Similarly, conditioned media from HAI-1-deficient tumor cells led to a loss of M1 and increased M2 polarization in vitro, and patient NSCLC tissues with loss of HAI-1 showed a similar loss of M1 macrophages. Combined, these results suggest that loss of HAI-1 is a potential means through which tumors acquire an immunosuppressive, M2-dominated TME, potentially through impaired M1 macrophage polarization. Hence, HAI-1 status may be informative when stratifying patients that may benefit from therapies targeting the HGF pathway, particularly as an adjuvant to ICI-based immunotherapy.
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Affiliation(s)
- Stanley Borowicz
- Division of Hematology/Oncology, Loyola University Medical Center, Maywood, Illinois, United States of America.,Department of Medicine, Division of Hematology/Oncology Edward Hines Jr. VA Hospital, Hines, Illinois, United States of America
| | - Daniel R Principe
- Medical Scientist Training Program, University of Illinois College of Medicine, Chicago, Illinois, United States of America.,Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America.,Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Matthew J Dorman
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Austin J McHenry
- Department of Pathology, Loyola University Medical Center, Maywood, Illinois, United States of America
| | - Gautam Sondarva
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Sandeep Kumar
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | | | - Patricia E Simms
- Loyola University FACS Core Facility, Loyola University Medical Center, Maywood, Illinois, United States of America
| | - Ashley Hess
- Loyola University FACS Core Facility, Loyola University Medical Center, Maywood, Illinois, United States of America
| | - Ajay Rana
- Department of Surgery, University of Illinois at Chicago, Chicago, Illinois, United States of America.,Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
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3
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Feng X, Ding W, Ma J, Liu B, Yuan H. Targeted Therapies in Lung Cancers: Current Landscape and Future Prospects. Recent Pat Anticancer Drug Discov 2021; 16:540-551. [PMID: 34132185 DOI: 10.2174/1574892816666210615161501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/09/2021] [Accepted: 03/31/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lung cancer is the most common and malignant cancer worldwide. Targeted therapies have emerged as a promising treatment strategy for lung cancers. OBJECTIVE The objective of this study is to evaluate the current landscape of targets and finding promising targets for future new drug discovery for lung cancers by identifying the science-technology-clinical development pattern and mapping the interaction network of targets. METHODS Targets for cancers were classified into 3 groups based on a paper published in Nature. We search for scientific literature, patent documents and clinical trials of targets in Group 1 and Group 2 for lung cancers. Then, a target-target interaction network of Group 1 was constructed, and the science-technology-clinical(S-T-C) development patterns of targets in Group 1 were identified. Finally, based on the cluster distribution and the development pattern of targets in Group 1, interactions between the targets were employed to predict potential targets in Group 2 on drug development. RESULTS The target-target interaction(TTI)network of group 1 resulted in 3 clusters with different developmental stages. The potential targets in Group 2 are divided into 3 ranks. Level-1 is the first priority and level-3 is the last. Level-1 includes 16 targets, such as STAT3, CRKL, and PTPN11, that are mostly involved in signaling transduction pathways. Level-2 and level-3 contain 8 and 6 targets related to various biological functions. CONCLUSION This study will provide references for drug development in lung cancers, emphasizing that priorities should be given to targets in Level-1, whose mechanisms are worth further exploration.
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Affiliation(s)
- Xin Feng
- School of Business Administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Wenqing Ding
- School of Business Administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Junhong Ma
- School of Business Administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Baijun Liu
- School of Business Administration, Shenyang Pharmaceutical University, Shenyang, China
| | - Hongmei Yuan
- School of Business Administration, Shenyang Pharmaceutical University, Shenyang, China
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4
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Chen K, Zeng J, Sun Y, Ouyang W, Yu G, Zhou H, Zhang Y, Yao W, Xiao W, Hu J, Xing J, Xiao K, Wu L, Chen Z, Ye Z, Xu H. Junction plakoglobin regulates and destabilizes HIF2α to inhibit tumorigenesis of renal cell carcinoma. Cancer Commun (Lond) 2021; 41:316-332. [PMID: 33591636 PMCID: PMC8045910 DOI: 10.1002/cac2.12142] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/24/2020] [Accepted: 01/31/2021] [Indexed: 12/21/2022] Open
Abstract
Background Increased hypoxia‐inducible factor 2α (HIF2α) activation is a common event in clear cell renal cell carcinoma (ccRCC) progression. However, the function and underlying mechanism of HIF2α in ccRCC remains uninvestigated. We conducted this study to access the potential link between junction plakoglobin (JUP) and HIF2α in ccRCC. Methods Affinity purification and mass spectrometry (AP‐MS) screening, glutathione‐s‐transferase (GST) pull‐down and co‐immunoprecipitation (Co‐IP) assays were performed to detect the interacting proteins of HIF2α. Quantitative PCR (qPCR) and Western blotting were used to detect the expression of JUP in human ccRCC samples. Luciferase reporter assays, chromatin immunoprecipitation (ChIP), cycloheximide chase assays, and ubiquitination assays were conducted to explore the regulation of JUP on the activity of HIF2α. Cell Counting Kit‐8 (CCK‐8) assays, colony formation assays, transwell assays, and xenograft tumor assays were performed to investigate the effect of JUP knockdown or overexpression on the tumorigenicity of renal cancer cells. Results We identified JUP as a novel HIF2α‐binding partner and revealed an important role of JUP in recruiting von Hippel‐Lindau (VHL) and histone deacetylases 1/2 (HDAC1/2) to HIF2α to regulate its stability and transactivation. JUP knockdown promoted and overexpression suppressed the tumorigenicity of renal cell carcinoma in vitro and in vivo. Importantly, the low expression of JUP was found in clinical ccRCC samples and correlated with enhanced hypoxia scores and poor treatment outcomes. Conclusion Taken together, these data support a role of JUP in modulating HIF2α signaling during ccRCC progression and identify JUP as a potential therapeutic target.
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Affiliation(s)
- Ke Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Jin Zeng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China.,Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330000, P. R. China
| | - Yi Sun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Wei Ouyang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Gan Yu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Hui Zhou
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Yangjun Zhang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Weimin Yao
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Wei Xiao
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Junhui Hu
- Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China.,Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, 90095, USA
| | - Jinchun Xing
- Department of Urology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, 361003, P. R. China
| | - Kefeng Xiao
- Department of Urology, The People's Hospital of Shenzhen City, Shenzhen, Guangdong, 518020, P. R. China
| | - Lily Wu
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, 90095, USA
| | - Zhiqiang Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Zhangqun Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
| | - Hua Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, P. R. China.,Hubei Institute of Urology, Wuhan, Hubei, 430030, P. R. China
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5
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Wu Q, Yin G, Luo J, Zhang Y, Ai T, Tian J, Jin Y, Lei J, Liu S. Comprehensive Analysis of the Expression and Prognostic Value of SPINT1/2 in Breast Carcinoma. Front Endocrinol (Lausanne) 2021; 12:665666. [PMID: 34381422 PMCID: PMC8351597 DOI: 10.3389/fendo.2021.665666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/26/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Hepatocyte growth factor (HGF) signaling plays a plethora of roles in tumorigenesis and progression in many cancer types. As HGF activator inhibitors, serine protease inhibitor, Kunitz types 1 and 2 (SPINT1 and SPINT2) have been reported to be differentially expressed in breast cancer, but their prognostic significance and functioning mechanism remain unclear. METHODS In our study, multiple databases and bioinformatics tools were used to investigate SPINT1/2 expression profiles, prognostic significance, genetic alteration, methylation, and regulatory network in breast carcinoma. RESULTS SPINT1/2 expression was upregulated in breast cancer, and was relatively higher in human epidermal growth factor receptor 2 (HER2) and node positive patients. Elevated SPINT1/2 expression was significantly correlated with a poorer prognosis. Genetic alterations and SPINT1/2 hypomethylation were observed. In breast carcinoma, SPINT1/2 were reciprocally correlated and shared common co-expressed genes. Gene ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis showed that their common co-expressed genes were primarily involved in regulating cell attachment and migration. CONCLUSIONS Our study identified the expression profiles, prognostic significance and potential roles of SPINT1/2 in breast carcinoma. These study results showed that the SPINT1/2 were potential prognostic biomarker for patients with breast cancer.
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Affiliation(s)
- Qiulin Wu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guobing Yin
- Department of Breast and Thyroid Surgery, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Luo
- Department of Pathology, Chongqing Medical University, Chongqing, China
| | - Yingzi Zhang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tiantian Ai
- Department of Cardiovascular Sciences, Chongqing Kangxin Hospital, Chongqing, China
| | - Jiao Tian
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yudi Jin
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jinwei Lei
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shengchun Liu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Shengchun Liu,
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6
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Chen Y, Yang L, Qin Y, Liu S, Qiao Y, Wan X, Zeng H, Tang X, Liu M, Hou Y. Effects of differential distributed-JUP on the malignancy of gastric cancer. J Adv Res 2020; 28:195-208. [PMID: 33364056 PMCID: PMC7753239 DOI: 10.1016/j.jare.2020.06.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 06/06/2020] [Accepted: 06/29/2020] [Indexed: 12/25/2022] Open
Abstract
JUP, a homologue of β-catenin, is a cell-cell junction protein involved in adhesion junction and desmosome composition. JUP may have a controversial role in different malignancies dependence of its competence with or collaboration with β-catenin as a transcription factor. In this study, we reveal that the function of JUP is related to its cellular location in GC development process from epithelium-like, low malignant GC to advanced EMT-phenotypic GC. Gradual loss of membrane and/or cytoplasm JUP is closely correlated with GC malignancy and poor prognostics. Knockdown of JUP in epithelium-like GC cells causes EMT and promotes GC cell migration and invasion. Ectopic expression of wild JUP in malignant GC cells leads to an attenuated malignant phenotype such as reduced cell invasive potential. In mechanism, loss of membrane and/or cytoplasm JUP abolishes the restrain of JUP to EGFR at cell membrane and results in increased p-AKT levels and AKT/GSK3β/β-catenin signaling activity. In addition, nuclear JUP interacts with nuclear β-catenin and TCF4 and plays a synergistic role with β-catenin in promoting TCF4 transcription and its downstream target MMP7 expression to fuel GC cell invasion.
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Affiliation(s)
- Yanlin Chen
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Liping Yang
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yilu Qin
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Shuiqing Liu
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yina Qiao
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Xueying Wan
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Huan Zeng
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoli Tang
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Manran Liu
- Key Laboratory of Laboratory Medical Diagnostics designed by Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yixuan Hou
- Experimental Teaching Center of Basic Medicine Science, Chongqing Medical University, Chongqing 400016, China
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Isozaki Y, Sakai K, Kohiro K, Kagoshima K, Iwamura Y, Sato H, Rindner D, Fujiwara S, Yamashita K, Mizuno K, Ohashi K. The Rho-guanine nucleotide exchange factor Solo decelerates collective cell migration by modulating the Rho-ROCK pathway and keratin networks. Mol Biol Cell 2020; 31:741-752. [PMID: 32049581 PMCID: PMC7185966 DOI: 10.1091/mbc.e19-07-0357] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Collective cell migration plays crucial roles in tissue remodeling, wound healing, and cancer cell invasion. However, its underlying mechanism remains unknown. Previously, we showed that the RhoA-targeting guanine nucleotide exchange factor Solo (ARHGEF40) is required for tensile force–induced RhoA activation and proper organization of keratin-8/keratin-18 (K8/K18) networks. Here, we demonstrate that Solo knockdown significantly increases the rate at which Madin-Darby canine kidney cells collectively migrate on collagen gels. However, it has no apparent effect on the migratory speed of solitary cultured cells. Therefore, Solo decelerates collective cell migration. Moreover, Solo localized to the anteroposterior regions of cell–cell contact sites in collectively migrating cells and was required for the local accumulation of K8/K18 filaments in the forward areas of the cells. Partial Rho-associated protein kinase (ROCK) inhibition or K18 or plakoglobin knockdown also increased collective cell migration velocity. These results suggest that Solo acts as a brake for collective cell migration by generating pullback force at cell–cell contact sites via the RhoA-ROCK pathway. It may also promote the formation of desmosomal cell–cell junctions related to K8/K18 filaments and plakoglobin.
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Affiliation(s)
- Yusuke Isozaki
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kouki Sakai
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kenta Kohiro
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Katsuhiko Kagoshima
- Department of Chemistry, Faculty of Science and Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Yuma Iwamura
- Department of Chemistry, Faculty of Science and Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Hironori Sato
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Daniel Rindner
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Sachiko Fujiwara
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kazunari Yamashita
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan.,Department of Chemistry, Faculty of Science and Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kensaku Mizuno
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kazumasa Ohashi
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan.,Department of Chemistry, Faculty of Science and Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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8
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Sang Y, Sun L, Wu Y, Yuan W, Liu Y, Li SW. Histone deacetylase 7 inhibits plakoglobin expression to promote lung cancer cell growth and metastasis. Int J Oncol 2019; 54:1112-1122. [PMID: 30628670 DOI: 10.3892/ijo.2019.4682] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 12/06/2018] [Indexed: 11/05/2022] Open
Abstract
Plakoglobin is a tumor suppressor gene in lung cancer; however, the mechanism by which it is downregulated in lung cancer is largely unknown. The aim of the present study was to investigate whether histone deacetylases (HDACs) regulate plakoglobin expression in lung cancer. The effects of overexpression or knockdown of HDAC7 on plakoglobin were determined using stably transfected lung cancer cell lines. Chromatin immunoprecipitation assays were performed to elucidate the mechanisms underlying the HDAC7‑induced suppression of plakoglobin. A Cell Counting Kit‑8 and Transwell assays were performed, and a nude mouse in vivo model was established to investigate the role of the HDAC7/plakoglobin pathway in cell migration, invasion and metastasis. Ectopic expression of HDAC7 was identified to suppress mRNA and protein levels of plakoglobin in lung cancer cells, whereas silencing HDAC7 with short hairpin RNA increased the expression of plakoglobin. HDAC7 was proposed to suppressed plakoglobin by directly binding to its promoter. Overexpression or knockdown of HDAC7 promoted or inhibited cell proliferation, migration and invasion, respectively. Furthermore, knockdown of HDAC7 significantly suppressed tumor growth and metastasis in vivo. In addition, overexpression of plakoglobin significantly reduced the enhanced cell proliferation, migration and invasion induced by ectopic HDAC7. In conclusion, suppression of plakoglobin by HDAC7 promoted the proliferation, migration, invasion and metastasis in lung cancer. This novel axis of HDAC7/plakoglobin may be valuable in the development of novel therapeutic strategies for treating patients with lung cancer.
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Affiliation(s)
- Yi Sang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, Department of Center Laboratory, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Longhua Sun
- Department of Respiratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Yuanzhong Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510060, P.R. China
| | - Wenxin Yuan
- Department of Ultrasonography, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330008, P.R. China
| | - Yanyan Liu
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Si-Wei Li
- Department of Radiation Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430079, P.R. China
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9
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Lack of plakoglobin impairs integrity and wound healing in corneal epithelium in mice. J Transl Med 2018; 98:1375-1383. [PMID: 29802338 DOI: 10.1038/s41374-018-0082-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/28/2018] [Accepted: 03/31/2018] [Indexed: 11/08/2022] Open
Abstract
We generated cornea-specific plakoglobin (Jup; junctional plakoglobin) knockout mice in order to investigate the function of plakoglobin on the maintenance of the homeostasis of corneal epithelium in mice. Cornea epithelium-specific conditional knockouts (JupCEΔ/CEΔ) (cKO) were obtained by breeding keratin12-Cre (Krt12-Cre) mice to Jup-floxed (Jupf/f) mice. Light and transmission electron microscopic and immunohistochemical analyses were carried out to determine consequence of the loss of plakoglobin on maintaining corneal epithelium integrity under mechanical stress, e.g., brushing and wound healing. Immunohistochemistry analysis demonstrated that, although Jup ablation did not affect BrdU incorporation, basal cell-like cells labeled for keratin 14 were ectopically present in the supra-basal layer in mutant corneal epithelium, suggestive of altered cell differentiation. Plakoglobin-deficient epithelium exhibits increased fragility against mechanical intervention when compared to wild-type controls under identical treatment. Closure of an epithelial defect was significantly delayed in JupCEΔ/CEΔ epithelium. Our findings indicate that the lack of plakoglobin significantly affects corneal epithelium differentiation, as well as its structural integrity. Plakoglobin is essential to the maintenance of the structure of the corneal epithelium and its wound healing.
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10
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Alaee M, Nool K, Pasdar M. Plakoglobin restores tumor suppressor activity of p53 R175H mutant by sequestering the oncogenic potential of β-catenin. Cancer Sci 2018; 109:1876-1888. [PMID: 29660231 PMCID: PMC5989865 DOI: 10.1111/cas.13612] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/03/2018] [Accepted: 04/06/2018] [Indexed: 12/16/2022] Open
Abstract
Tumor suppressor/transcription factor p53 is mutated in over 50% of all cancers. Some mutant p53 proteins have not only lost tumor suppressor activities but they also gain oncogenic functions (GOF). One of the most frequently expressed GOF p53 mutants is Arg175His (p53R175H ) with well-documented roles in cancer development and progression. Plakoglobin is a cell adhesion and signaling protein and a paralog of β-catenin. Unlike β-catenin that has oncogenic function through its role in the Wnt pathway, plakoglobin generally acts as a tumor/metastasis suppressor. We have shown that plakoglobin interacted with wild type and a number of p53 mutants in various carcinoma cell lines. Plakoglobin and mutant p53 interacted with the promoter and regulated the expression of several p53 target genes. Furthermore, plakoglobin interactions with p53 mutants restored their tumor suppressor/metastasis activities in vitro. GOF p53 mutants induce accumulation and oncogenic activation of β-catenin. Previously, we showed that one mechanism by which plakoglobin may suppress tumorigenesis is by sequestering β-catenin's oncogenic activity. Here, we examined the effects of p53R175H expression on β-catenin accumulation and transcriptional activation and their modifications by plakoglobin coexpression. We showed that p53R175H expression in plakoglobin null cells increased total and nuclear levels of β-catenin and its transcriptional activity. Coexpression of plakoglobin in these cells promoted β-catenin's proteasomal degradation, and decreased its nuclear levels and transactivation. Wnt/β-catenin targets, c-MYC and S100A4 were upregulated in p53R175H cells and were downregulated when plakoglobin was coexpressed. Plakoglobin-p53R175H cells also showed significant reduction in their migration and invasion in vitro.
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Affiliation(s)
- Mahsa Alaee
- Department of OncologyUniversity of AlbertaEdmontonCanada
| | - Kristina Nool
- Department of OncologyUniversity of AlbertaEdmontonCanada
| | - Manijeh Pasdar
- Department of OncologyUniversity of AlbertaEdmontonCanada
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11
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Delineating the HMGB1 and HMGB2 interactome in prostate and ovary epithelial cells and its relationship with cancer. Oncotarget 2018; 9:19050-19064. [PMID: 29721183 PMCID: PMC5922377 DOI: 10.18632/oncotarget.24887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/27/2018] [Indexed: 12/19/2022] Open
Abstract
High Mobility Group B (HMGB) proteins are involved in cancer progression and in cellular responses to platinum compounds used in the chemotherapy of prostate and ovary cancer. Here we use affinity purification coupled to mass spectrometry (MS) and yeast two-hybrid (Y2H) screening to carry out an exhaustive study of HMGB1 and HMGB2 protein interactions in the context of prostate and ovary epithelia. We present a proteomic study of HMGB1 partners based on immunoprecipitation of HMGB1 from a non-cancerous prostate epithelial cell line. In addition, HMGB1 and HMGB2 were used as baits in yeast two-hybrid screening of libraries from prostate and ovary epithelial cell lines as well as from healthy ovary tissue. HMGB1 interacts with many nuclear proteins that control gene expression, but also with proteins that form part of the cytoskeleton, cell-adhesion structures and others involved in intracellular protein translocation, cellular migration, secretion, apoptosis and cell survival. HMGB2 interacts with proteins involved in apoptosis, cell motility and cellular proliferation. High confidence interactors, based on repeated identification in different cell types or in both MS and Y2H approaches, are discussed in relation to cancer. This study represents a useful resource for detailed investigation of the role of HMGB1 in cancer of epithelial origins, as well as potential alternative avenues of therapeutic intervention.
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12
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Aktary Z, Alaee M, Pasdar M. Beyond cell-cell adhesion: Plakoglobin and the regulation of tumorigenesis and metastasis. Oncotarget 2018; 8:32270-32291. [PMID: 28416759 PMCID: PMC5458283 DOI: 10.18632/oncotarget.15650] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 12/16/2016] [Indexed: 12/13/2022] Open
Abstract
Plakoglobin (also known as? -catenin) is a member of the Armadillo family of proteins and a paralog of β -catenin. Plakoglobin is a component of both the adherens junctions and desmosomes, and therefore plays a vital role in the regulation of cell-cell adhesion. Similar to β -catenin, plakoglobin is capable of participating in cell signaling in addition to its role in cell-cell adhesion. In this context, β -catenin has a well-documented oncogenic potential as a component of the Wnt signaling pathway. In contrast, while some studies have suggested a tumor promoting activity of plakoglobin in a cell/malignancy specific context, it generally acts as a tumor/metastasis suppressor. How plakoglobin acts as a growth/metastasis inhibitory protein has remained, until recently, unclear. Recent evidence suggests that plakoglobin may suppress tumorigenesis and metastasis by multiple mechanisms, including the suppression of oncogenic signaling, interactions with various proteins involved in tumorigenesis and metastasis, and the regulation of the expression of genes involved in these processes. This review is primarily focused on various mechanisms by which plakoglobin may inhibit tumorigenesis and metastasis.
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Affiliation(s)
- Zackie Aktary
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada.,Institut Curie, Orsay, France
| | - Mahsa Alaee
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Manijeh Pasdar
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
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13
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Li Y, Hu K, Xiao X, Wu W, Yan H, Chen H, Chen Z, Yin D. FBW7 suppresses cell proliferation and G2/M cell cycle transition via promoting γ-catenin K63-linked ubiquitylation. Biochem Biophys Res Commun 2018; 497:473-479. [PMID: 29408378 DOI: 10.1016/j.bbrc.2018.01.192] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 01/31/2018] [Indexed: 11/25/2022]
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14
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Kataoka H, Kawaguchi M, Fukushima T, Shimomura T. Hepatocyte growth factor activator inhibitors (HAI-1 and HAI-2): Emerging key players in epithelial integrity and cancer. Pathol Int 2018; 68:145-158. [PMID: 29431273 DOI: 10.1111/pin.12647] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 01/09/2018] [Indexed: 02/06/2023]
Abstract
The growth, survival, and metabolic activities of multicellular organisms at the cellular level are regulated by intracellular signaling, systemic homeostasis and the pericellular microenvironment. Pericellular proteolysis has a crucial role in processing bioactive molecules in the microenvironment and thereby has profound effects on cellular functions. Hepatocyte growth factor activator inhibitor type 1 (HAI-1) and HAI-2 are type I transmembrane serine protease inhibitors expressed by most epithelial cells. They regulate the pericellular activities of circulating hepatocyte growth factor activator and cellular type II transmembrane serine proteases (TTSPs), proteases required for the activation of hepatocyte growth factor (HGF)/scatter factor (SF). Activated HGF/SF transduces pleiotropic signals through its receptor tyrosine kinase, MET (coded by the proto-oncogene MET), which are necessary for cellular migration, survival, growth and triggering stem cells for accelerated healing. HAI-1 and HAI-2 are also required for normal epithelial functions through regulation of TTSP-mediated activation of other proteases and protease-activated receptor 2, and also through suppressing excess degradation of epithelial junctional proteins. This review summarizes current knowledge regarding the mechanism of pericellular HGF/SF activation and highlights emerging roles of HAIs in epithelial development and integrity, as well as tumorigenesis and progression of transformed epithelial cells.
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Affiliation(s)
- Hiroaki Kataoka
- Section of Oncopathology and Regenerative Biology, Faculty of Medicine, Department of Pathology, University of Miyazaki, 5200 Kihara, Kiyotake, 889-1692 Miyazaki
| | - Makiko Kawaguchi
- Section of Oncopathology and Regenerative Biology, Faculty of Medicine, Department of Pathology, University of Miyazaki, 5200 Kihara, Kiyotake, 889-1692 Miyazaki
| | - Tsuyoshi Fukushima
- Section of Oncopathology and Regenerative Biology, Faculty of Medicine, Department of Pathology, University of Miyazaki, 5200 Kihara, Kiyotake, 889-1692 Miyazaki
| | - Takeshi Shimomura
- Section of Oncopathology and Regenerative Biology, Faculty of Medicine, Department of Pathology, University of Miyazaki, 5200 Kihara, Kiyotake, 889-1692 Miyazaki
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15
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Alaee M, Padda A, Mehrabani V, Churchill L, Pasdar M. The physical interaction of p53 and plakoglobin is necessary for their synergistic inhibition of migration and invasion. Oncotarget 2018; 7:26898-915. [PMID: 27058623 PMCID: PMC5042024 DOI: 10.18632/oncotarget.8616] [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: 12/11/2015] [Accepted: 03/14/2016] [Indexed: 01/15/2023] Open
Abstract
Plakoglobin (PG) is a paralog of β-catenin with similar adhesive, but contrasting signalling functions. Although β-catenin has well-known oncogenic function, PG generally acts as a tumor/metastasis suppressor by mechanisms that are just beginning to be deciphered. Previously, we showed that PG interacted with wild type (WT) and a number of mutant p53s, and that its tumor/metastasis suppressor activity may be mediated, at least partially, by this interaction. Here, carcinoma cell lines deficient in both p53 and PG (H1299), or expressing mutant p53 in the absence of PG (SCC9), were transfected with expression constructs encoding WT and different fragments and deletions of p53 and PG, individually or in pairs. Transfectants were characterized for their in vitro growth, migratory and invasive properties and for mapping the interacting domain of p53 and PG. We showed that when coexpressed, p53-WT and PG-WT cooperated to decrease growth, and acted synergistically to significantly reduce cell migration and invasion. The DNA-binding domain of p53 and C-terminal domain of PG mediated p53/PG interaction, and furthermore, the C-terminus of PG played a central role in the inhibition of invasion in association with p53.
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Affiliation(s)
- Mahsa Alaee
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
| | - Amarjot Padda
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
| | - Vahedah Mehrabani
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
| | - Lucas Churchill
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
| | - Manijeh Pasdar
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
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16
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He X, Zhou T, Yang G, Fang W, Li Z, Zhan J, Zhao Y, Cheng Z, Huang Y, Zhao H, Zhang L. The expression of plakoglobin is a potential prognostic biomarker for patients with surgically resected lung adenocarcinoma. Oncotarget 2017; 7:15274-87. [PMID: 26933815 PMCID: PMC4924786 DOI: 10.18632/oncotarget.7729] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 02/05/2016] [Indexed: 01/12/2023] Open
Abstract
Purpose This study aimed to explore the relationship between plakoglobin expression and clinical data in the patients with surgically resected lung adenocarcinoma. Results With follow-up of median 50.14 months, the average PFS and OS were 16.82 and 57.92 months, respectively. In 147 patients, recurrence or death was observed in 131 patients. According to the log-rank test, low plakoglobin expression was a significant predictor for favorable DFS (P=0.006) and OS (P=0.043). For the analyses within subgroups, high plakoglobin expression was an independent factor for reducing DFS in non-metastatic patients with resected lung adenocarcinoma (P < 0.05). Moreover, high plakoglobin expression was associated with poor DFS even receiving adjuvant chemotherapy (P =0.028) and with a shorter DFS (HR, 2.01, 95%CIs, 1.35 to 2.97, P=0.001) and OS (HR, 1.94, 95%CIs, 1.12 to 3.37, P=0.019). Patients and methods The expression of plakoglobin in 147 primary tumor tissues was examined by using immunohistochemistry and clinical data were collected. The optimal cutoff value of immunoreactivity score (IRS) was calculated and used to divide all the patients into two groups: low-level group (IRS: 0-3, n=59) and high-level group (IRS: 4-12, n=88). Kaplan–Meier curves were applied to assess the plakoglobin expression and clinical variables. The univariate and multivariate Cox model analyses were performed to evaluate the effects of clinical factors and plakoglobin expression on disease-free survival (DFS) and overall survival (OS). Conclusion High plakoglobin expression is an independent negative prognostic factor for patients with surgically resected lung adenocarcinoma.
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Affiliation(s)
- Xiaobo He
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Ting Zhou
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Guangwei Yang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,Department of Oncological Radiotherapy, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Wenfeng Fang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zelei Li
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jianhua Zhan
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yuanyuan Zhao
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zhibin Cheng
- Department of Oncological Radiotherapy, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Yan Huang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hongyun Zhao
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Li Zhang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China.,State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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17
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N B, K R C. Tetrandrine and cancer - An overview on the molecular approach. Biomed Pharmacother 2017; 97:624-632. [PMID: 29101806 DOI: 10.1016/j.biopha.2017.10.116] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/18/2017] [Accepted: 10/21/2017] [Indexed: 12/12/2022] Open
Abstract
Tetrandrine has been known in the treatment of tuberculosis, hyperglycemia, negative ionotropic and chronotropic effects on myocardium, malaria, cancer and fever since years together. It has been known that, tetrandrine could modulate multiple signaling molecules such as kinases of cell cycle and rat sarcoma (RAS) pathway along with proteins of tumor suppressor genes, autophagy related, β-catenins, caspases, and death receptors. Moreover, tetrandrine exhibited reversal of drug resistance by modulating P-glyco protein (P-gp) expression levels in different cancers which is an added advantage of this compound compared to other chemotherapy drugs. Though, bioavailability of tetrandrine is a limiting factor, the anticancer activity was observed in animal models without changing any pharmacokinetic parameters. In the present review, role of tetrandrine as kinase inhibitor, inducer of autophagy and caspase pathways and suppressor of RAS mediated cell proliferation were discussed along with inhibition of angiogenesis. It has also been discussed that how tetrandrine potentiate anticancer effect in different types of cancers by modulating multidrug resistance under in vitro and in vivo trials including the available literature on the clinical trials.
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Affiliation(s)
- Bhagya N
- Department of Applied Botany, Mangalore University, Mangalagangotri, Mangalore 574 199, Karnataka, India
| | - Chandrashekar K R
- Department of Applied Botany, Mangalore University, Mangalagangotri, Mangalore 574 199, Karnataka, India.
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18
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Zhou G, Yang L, Gray A, Srivastava AK, Li C, Zhang G, Cui T. The role of desmosomes in carcinogenesis. Onco Targets Ther 2017; 10:4059-4063. [PMID: 28860814 PMCID: PMC5565390 DOI: 10.2147/ott.s136367] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Desmosomes, which are intercellular adhesive complexes, are essential for the maintenance of epithelial homeostasis. They are located at the cell membrane, where they act as anchors for intermediate filaments. Downregulation of desmosome proteins in various cancers promotes tumor progression. However, the role of desmosomes in carcinogenesis is still being elucidated. Recent studies revealed that desmosome family members play a crucial role in tumor suppression or tumor promotion. This review focuses on studies that provide insights into the role of desmosomes in carcinogenesis and address their molecular functions.
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Affiliation(s)
- Guangxin Zhou
- Department of Oncology, Central Hospital of Binzhou, Binzhou Medical College, Binzhou, People's Republic of China
| | - Linlin Yang
- Department of Radiation Oncology, Arthur G James Hospital/Ohio State Comprehensive Cancer Center
| | | | - Amit Kumar Srivastava
- Division of Radiobiology, Department of Radiology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | | | - Gongwen Zhang
- Department of Cardiac Surgery, Central Hospital of Binzhou, Binzhou Medical College, Binzhou, People's Republic of China
| | - Tiantian Cui
- Department of Radiation Oncology, Arthur G James Hospital/Ohio State Comprehensive Cancer Center
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19
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Bikkavilli RK, Zerayesus SA, Van Scoyk M, Wilson L, Wu PY, Baskaran A, Tang K, Raheem S, Samuelson BA, Reddy NM, Reddy SP, Cool CD, Kosmider B, Avasarala S, Winn RA. K-homology splicing regulatory protein (KSRP) promotes post-transcriptional destabilization of Spry4 transcripts in non-small cell lung cancer. J Biol Chem 2017; 292:7423-7434. [PMID: 28275056 PMCID: PMC5418043 DOI: 10.1074/jbc.m116.757906] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 02/24/2017] [Indexed: 12/20/2022] Open
Abstract
AU-rich element-binding proteins (ARE-BPs) offer post-transcriptional regulation of gene expression via physical interaction and recruitment of RNA decay machinery to the AU-rich elements within the 3′-UTR of the target transcripts. However, the role of ARE-BPs in lung cancer remains poorly understood. In this study, we have identified that K-homology splicing regulatory protein (KSRP), an ARE-BP, is robustly up-regulated in human lung cancer. Importantly, Kaplan-Meier survival analysis indicated that elevated KSRP expression was correlated with poor overall survival of lung cancer patients. Furthermore, cigarette smoke, a leading risk factor for lung cancer, was also identified to be an important contributor to increased KSRP expression. Remarkably, silencing of KSRP decreased cell proliferation, reversed anchorage-independent growth, and reduced migration/invasion, suggesting an oncogenic role for KSRP in lung cancer. Finally, we provide mechanistic evidence that KSRP promotes the down-regulation of Spry4 by a previously unidentified mechanism, i.e. post-transcriptional mRNA regulation.
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Affiliation(s)
- Rama Kamesh Bikkavilli
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Sereke Adam Zerayesus
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Michelle Van Scoyk
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Lora Wilson
- Department of Pathology and Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | - Pei-Ying Wu
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Abhinaya Baskaran
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Ke Tang
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Syed Raheem
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Blain A Samuelson
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Narsa M Reddy
- Division of Developmental Biology and Basic Research, Department of Pediatrics,University of Illinois, Chicago, Illinois 60612
| | - Sekhar P Reddy
- Division of Developmental Biology and Basic Research, Department of Pediatrics,University of Illinois, Chicago, Illinois 60612
| | - Carlyne D Cool
- Department of Pathology and Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | - Beata Kosmider
- Departments of Physiology, Thoracic Medicine, and Surgery, Lewis Katz School of Medicine and.,Center for Inflammation, Translational, and Clinical Lung Research, Temple University, Philadelphia, Pennsylvania 19140.,Department of Medicine, National Jewish Health, Denver, Colorado 80206, and
| | - Sreedevi Avasarala
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and
| | - Robert A Winn
- From the Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine and .,Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois 60612
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20
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MicroRNA-939 governs vascular integrity and angiogenesis through targeting γ-catenin in endothelial cells. Biochem Biophys Res Commun 2017; 484:27-33. [DOI: 10.1016/j.bbrc.2017.01.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 01/18/2017] [Indexed: 12/26/2022]
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21
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Ortega-Martínez I, Gardeazabal J, Erramuzpe A, Sanchez-Diez A, Cortés J, García-Vázquez MD, Pérez-Yarza G, Izu R, Luís Díaz-Ramón J, de la Fuente IM, Asumendi A, Boyano MD. Vitronectin and dermcidin serum levels predict the metastatic progression of AJCC I-II early-stage melanoma. Int J Cancer 2016; 139:1598-607. [PMID: 27216146 PMCID: PMC5089559 DOI: 10.1002/ijc.30202] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Accepted: 05/11/2016] [Indexed: 01/03/2023]
Abstract
Like many cancers, an early diagnosis of melanoma is fundamental to ensure a good prognosis, although an important proportion of stage I-II patients may still develop metastasis during follow-up. The aim of this work was to discover serum biomarkers in patients diagnosed with primary melanoma that identify those at a high risk of developing metastasis during the follow-up period. Proteomic and mass spectrophotometry analysis was performed on serum obtained from patients who developed metastasis during the first years after surgery for primary tumors and compared with that from patients who remained disease-free for more than 10 years after surgery. Five proteins were selected for validation as prognostic factors in 348 melanoma patients and 100 controls by ELISA: serum amyloid A and clusterin; immune system proteins; the cell adhesion molecules plakoglobin and vitronectin and the antimicrobial protein dermcidin. Compared to healthy controls, melanoma patients have high serum levels of these proteins at the moment of melanoma diagnosis, although the specific values were not related to the histopathological stage of the tumors. However, an analysis based on classification together with multivariate statistics showed that tumor stage, vitronectin and dermcidin levels were associated with the metastatic progression of patients with early-stage melanoma. Although melanoma patients have increased serum dermcidin levels, the REPTree classifier showed that levels of dermcidin <2.98 μg/ml predict metastasis in AJCC stage II patients. These data suggest that vitronectin and dermcidin are potent biomarkers of prognosis, which may help to improve the personalized medical care of melanoma patients and their survival.
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Affiliation(s)
- Idoia Ortega-Martínez
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Jesús Gardeazabal
- Department of Dermatology, Ophthalmology and Otorhinolaryngology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - Asier Erramuzpe
- BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - Ana Sanchez-Diez
- Department of Dermatology, Ophthalmology and Otorhinolaryngology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - Jesús Cortés
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain.,Ikerbasque: The Basque Foundation for Science, Bilbao, Spain
| | - María D García-Vázquez
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Gorka Pérez-Yarza
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - Rosa Izu
- Department of Dermatology, Ophthalmology and Otorhinolaryngology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - Jose Luís Díaz-Ramón
- Department of Dermatology, Ophthalmology and Otorhinolaryngology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - Ildefonso M de la Fuente
- Institute of Parasitology and Biomedicine Lopez-Neyra, Parque Tecnológico Ciencias De La Salud, Avenida Del Conocimiento S/N, Armilla, Granada, Spain
| | - Aintzane Asumendi
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
| | - María D Boyano
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.,BioCruces Health Research Institute, Plaza De Cruces S/N, Barakaldo, Bizkaia, Spain
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Alaee M, Danesh G, Pasdar M. Plakoglobin Reduces the in vitro Growth, Migration and Invasion of Ovarian Cancer Cells Expressing N-Cadherin and Mutant p53. PLoS One 2016; 11:e0154323. [PMID: 27144941 PMCID: PMC4856367 DOI: 10.1371/journal.pone.0154323] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/12/2016] [Indexed: 12/20/2022] Open
Abstract
Aberrant expression of cadherins and catenins plays pivotal roles in ovarian cancer development and progression. Plakoglobin (PG, γ-catenin) is a paralog of β-catenin with dual adhesive and signaling functions. While β-catenin has known oncogenic function, PG generally acts as a tumor/metastasis suppressor. We recently showed that PG interacted with p53 and that its growth/metastasis inhibitory function may be mediated by this interaction. Very little is known about the role of PG in ovarian cancer. Here, we investigated the in vitro tumor/metastasis suppressor effects of PG in ovarian cancer cell lines with mutant p53 expression and different cadherin profiles. We showed that the N-cadherin expressing and E-cadherin and PG deficient ES-2 cells were highly migratory and invasive, whereas OV-90 cells that express E-cadherin, PG and very little/no N-cadherin were not. Exogenous expression of PG or E-cadherin or N-cadherin knockdown in ES-2 cells (ES-2-E-cad, ES-2-PG and ES-2-shN-cad) significantly reduced their migration and invasion. Also, PG expression or N-cadherin knockdown significantly decreased ES-2 cells growth. Furthermore, PG interacted with both cadherins and with wild type and mutant p53 in normal ovarian and ES-2-PG cell lines, respectively.
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Affiliation(s)
- Mahsa Alaee
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
| | - Ghazal Danesh
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
| | - Manijeh Pasdar
- Department of Oncology, University of Alberta, Edmonton, AB, T6G1Z2, Canada
- * E-mail:
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