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Li T, Wan Y, Su Z, Li J, Han M, Zhou C. SRF Potentiates Colon Cancer Metastasis and Progression in a microRNA-214/PTK6-Dependent Manner. Cancer Manag Res 2020; 12:6477-6491. [PMID: 32801887 PMCID: PMC7395694 DOI: 10.2147/cmar.s257422] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/12/2020] [Indexed: 01/05/2023] Open
Abstract
Objective Serum response factor (SRF), a sequence-specific transcription factor, is closely related to metastasis of gastric cancer, a digestive tract cancer. Herein, we probed the effect of SRF on metastasis and progression of colon cancer (CC), another digestive tract disorder, and the detailed mechanism. Methods Microarray analysis was conducted on tumor and adjacent tissues to filter differentially expressed miRNA, followed by RT-qPCR validation in CC cell lines. The transcription factor and the target gene of microRNA-214 (miR-214) were predicted, and their binding relationships were tested by luciferase reporter assays and ChIP assays. Subsequently, SRF and protein tyrosine kinase 6 (PTK6) expression in CC patients and cells was evaluated by RT-qPCR, while JAK2 and STAT3 expression in cells by Western blot analysis. To further explore functions of miR-214, PTK6 and SRF on CC, CC cells were delivered with si-PTK6, miR-214 mimic and/or SRF overexpression. Results miR-214 expressed poorly in CC tissues and cell lines, which related to advanced TNM staging and survival. miR-214 mimic inhibited proliferation, migration, invasion, xenograft tumor growth and metastasis of CC cells. SRF, overexpressed in CC samples and cells, suppressed the transcription of miR-214. Meanwhile, SRF upregulation counteracted the inhibitory role of miR-214 mimic in CC cell growth. miR-214 negatively regulated PTK6 expression to impair the JAK2/STAT3 pathway activation, thereby halting CC cell proliferation, migration, invasion, xenograft tumor growth and metastasis. Conclusion Altogether, miR-214 may perform as a tumor suppressor in CC, and the SRF/miR-214/PTK6/JAK2/STAT3 axis could be applied as a biomarker and potential therapeutic target.
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Affiliation(s)
- Tao Li
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
| | - Yingchun Wan
- Department of Endocrinology, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
| | - Ziyuan Su
- Department of Pharmacy, Changchun Second Hospital, Changchun 130062, Jilin, People's Republic of China
| | - Jiayu Li
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
| | - Minna Han
- Department of Medicine, Medical School of Chinese People & Apos's Liberation Army, Chinese People & Apos's Liberation Army General Hospital, Beijing 100853, People's Republic of China
| | - Changyu Zhou
- Department of Digestion, China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, People's Republic of China
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Topel H, Bagirsakci E, Comez D, Bagci G, Cakan-Akdogan G, Atabey N. lncRNA HOTAIR overexpression induced downregulation of c-Met signaling promotes hybrid epithelial/mesenchymal phenotype in hepatocellular carcinoma cells. Cell Commun Signal 2020; 18:110. [PMID: 32650779 PMCID: PMC7353702 DOI: 10.1186/s12964-020-00602-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023] Open
Abstract
Background Epithelial-to-mesenchymal transition (EMT) and mesenchymal-to-epithelial transition (MET) are both reversible processes, and regulation of phenotypical transition is very important for progression of several cancers including hepatocellular carcinoma (HCC). Recently, it is defined that cancer cells can attain a hybrid epithelial/mesenchymal (hybrid E/M) phenotype. Cells with hybrid E/M phenotype comprise mixed epithelial and mesenchymal properties, they can be more resistant to therapeutics and also more capable of initiating metastatic lesions. However, the mechanisms regulating hybrid E/M in HCC are not well described yet. In this study, we investigated the role of the potential crosstalk between lncRNA HOTAIR and c-Met receptor tyrosine kinase, which are two essential regulators of EMT and MET, in acquiring of hybrid E/M phenotype in HCC. Methods Expression of c-Met and lncRNA HOTAIR were defined in HCC cell lines and patient tissues through HCC progression. lncRNA HOTAIR was overexpressed in SNU-449 cells and its effects on c-Met signaling were analyzed. c-Met was overexpressed in SNU-398 cells and its effect on HOTAIR expression was analyzed. Biological significance of HOTAIR/c-Met interplay was defined in means of adhesion, proliferation, motility behavior, invasion, spheroid formation and metastatic ability. Effect of ectopic lncRNA HOTAIR expression on phenotype was defined with investigation of molecular epithelial and mesenchymal traits. Results In vitro and in vivo experiments verified the pivotal role of lncRNA HOTAIR in acquisition of hybrid E/M phenotype through modulating expression and activation of c-Met and its membrane co-localizing partner Caveolin-1, and membrane organization to cope with the rate limiting steps of metastasis such as survival in adhesion independent microenvironment, escaping from anoikis and resisting to fluidic shear stress (FSS) in HCC. Conclusions Our work provides the first evidence suggesting a role for lncRNA HOTAIR in the modulation of c-Met to promote hybrid E/M phenotype. The balance between lncRNA HOTAIR and c-Met might be critical for cell fate decision and metastatic potential of HCC cells. Video Abstract
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Affiliation(s)
- Hande Topel
- Izmir Biomedicine and Genome Center (IBG), Balcova, 35340, Izmir, Turkey.,Department of Medical Biology and Genetics, Graduate School of Health Sciences, Dokuz Eylul University, 35340, Balcova, Izmir, Turkey.,Functional Genomics and Metabolism Unit, Department for Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Ezgi Bagirsakci
- Izmir Biomedicine and Genome Center (IBG), Balcova, 35340, Izmir, Turkey.,Department of Molecular Biology and Genetics, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340, Balcova, Izmir, Turkey
| | - Dehan Comez
- Izmir Biomedicine and Genome Center (IBG), Balcova, 35340, Izmir, Turkey.,Department of Molecular Biology and Genetics, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340, Balcova, Izmir, Turkey
| | - Gulsun Bagci
- Izmir Biomedicine and Genome Center (IBG), Balcova, 35340, Izmir, Turkey.,Department of Molecular Biology and Genetics, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340, Balcova, Izmir, Turkey
| | - Gulcin Cakan-Akdogan
- Izmir Biomedicine and Genome Center (IBG), Balcova, 35340, Izmir, Turkey.,Department of Medical Biology, Faculty of Medicine, Dokuz Eylul University, 35340, Balcova, Izmir, Turkey
| | - Nese Atabey
- Izmir Biomedicine and Genome Center (IBG), Balcova, 35340, Izmir, Turkey.
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Yang S, Wang X, Duan C, Zhang J. A novel approach combining metabolomics and molecular pharmacology to study the effect of Gei Herba on mouse hematopoietic function. Biomed Pharmacother 2020; 129:110437. [PMID: 32768939 DOI: 10.1016/j.biopha.2020.110437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 01/21/2023] Open
Abstract
Gei Herba, Chinese named Lanbuzheng (LBZ), is a traditional Chinese medicine promotes hematopoiesis, yet the underlying mechanism for this effect remains largely unknown. In the present study, a novel approach combining LC-MS metabolomics and molecular pharmacology was developed to investigate the hematopoietic effect and mechanism of LBZ on hematopoietic dysfunction (HD) caused by cyclophosphamide (CTX) in treated mice. The results show that LBZ can reduce damage in the spleen, a result consistent with the peripheral hemogram. Fourteen potential biomarkers were identified in the spleen by metabolic profiles analysis, including 5-hydroxymethyluracil, ascorbalamic acid, adenosine 5'-monophosphate, menadiol disulfate, l-homocysteine sulfonic acid and l-carnitine. Change in biomarker levels suggest that LBZ mainly affects β-oxidation of very-long-chain fatty acids, oxidation of branched chain fatty acids and carnitine synthesis, and those metabolites produced along with related metabolic pathways are closely associated with anti-apoptosis. A molecular pharmacology approach was simultaneously developed to examine accompanying cellular signaling mechanisms. LBZ activates PI3K/Akt signaling pathways and granulocyte-colony-stimulating-factor (G-CSF)-mediated Janus kinase 2 (JAK2)/transcription 3 (STAT3), resulting in inhibiting the release of cytochrome c. Further, LBZ inhibits caspase-mediated mitochondrial-dependent apoptosis mediated by caspase-9 and caspase-3. LBZ can thus reduce CTX-induced HD via G-CSF-mediated JAK2/STAT3 signaling and PI3K/Akt mitochondrial-dependent apoptotic pathways. The present study combines metabolomic and molecular pharmacological methods to elucidate mechanisms for the protective effect of LBZ on mouse HD following CTX-induced damage. This approach may be useful for exploring mechanisms of action of other drugs.
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Affiliation(s)
- Sha Yang
- Department of Pharmcy, Zunyi Medical University, Zunyi, 563000, China; Zunyi Insitute of Products Quality Inspection and Testing, Zunyi, 56300, China
| | - Xiaoning Wang
- Department of Pharmcy, Zunyi Medical University, Zunyi, 563000, China; Key Lab Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 56300,China
| | - Cancan Duan
- Department of Pharmcy, Zunyi Medical University, Zunyi, 563000, China; Key Lab Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 56300,China.
| | - Jianyong Zhang
- Department of Pharmcy, Zunyi Medical University, Zunyi, 563000, China; Key Lab Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 56300,China.
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Zhang W, Yang Z, Gao X, Wu Q. Advances in the discovery of novel biomarkers for cancer: spotlight on protein N-glycosylation. Biomark Med 2020; 14:1031-1045. [PMID: 32940073 DOI: 10.2217/bmm-2020-0185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023] Open
Abstract
Progress on glycosylation and tumor markers has not been extensively reported. Glycosylation plays an important part in post-translational modification. Previous research on glycosylation-modified biomarkers has lagged behind due to insufficient understanding of glycosylation-related regulations. However, some new methods and ideas illustrated in recent research may provide new inspirations in the field. This article aims to review current advances in revealing relationship between tumors and abnormal N-glycosylation and discuss leading-edge applications of N-glycosylation in developing novel tumor biomarkers.
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Affiliation(s)
- Wenyao Zhang
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, China
| | - Zhiping Yang
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, China
| | - Xiaoliang Gao
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, China
| | - Qiong Wu
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, China
- Department of Clinical Nutrition, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, China
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Hua K, Deng X, Hu J, Ji C, Yu Y, Li J, Wang X, Fang L. Long noncoding RNA HOST2, working as a competitive endogenous RNA, promotes STAT3-mediated cell proliferation and migration via decoying of let-7b in triple-negative breast cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:58. [PMID: 32248842 PMCID: PMC7132993 DOI: 10.1186/s13046-020-01561-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023]
Abstract
Background Human ovarian cancer specific transcript 2 (HOST2) is a long non-coding RNA (lncRNA) reported to be specifically high expressed in human ovarian cancer. However, the mechanism that how HOST2 regulates triple negative breast cancer (TNBC) need to be explored. Methods In this study, expression of HOST2 was determined in 40 TNBC patients and matched non-cancerous tissues by qRT-PCR and in situ hybridization (ISH) assay. The biological functions of HOST2 was measured by losing features. The effect of HOST2 on viability, proliferation and migration was evaluated by MTT, colony formation assay, EDU analysis, transwell invasion assay and nude mouse xenograft model. Fluorescence in situ hybridization (FISH), Luciferase report assay, RNA immunoprecipitation (RIP) assay and Western blot were fulfilled to measure molecular mechanisms. Results The results showed that HOST2 was up-regulated in BC tissues and cell lines. Clinical outcome analysis demonstrated that high expression of HOST2 was associated with poor prognosis of TNBC patients. Functional experiments illustrated that knockdown of HOST2 significantly suppressed TNBC cell proliferation and migration. Western blot assays, qRT-PCR assays, RIP assays and luciferase reporter assays revealed that HOST2 regulated STAT3 via crosstalk with let-7b. Depression of HOST2 suppressed STAT3-mediated proliferation and migration in TNBC cells. HOST2 could function as a decoy of let-7b to depress expression of STAT3. Conclusions HOST2 could function as a oncogene and promoted STAT3-mediated proliferation and migration through acting as a competing endogenous RNA, which might act as a potential biomarker for TNBC patients.
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Affiliation(s)
- Kaiyao Hua
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China.
| | - Xiaochong Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Jiashu Hu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Changle Ji
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yunhe Yu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Jiayi Li
- Nanjing Medical University, Nanjing, 210029, China
| | - Xuehui Wang
- Medical College of Soochow University, Suzhou, 215006, China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China.
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