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Li Y, Yun X, Li J, Bai M. CSTF2T up-regulates IGHG1 by binding to ZEB1 to promote melanoma cell proliferation, migration, and invasion. Tissue Cell 2023; 81:102029. [PMID: 36736099 DOI: 10.1016/j.tice.2023.102029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 12/29/2022] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Melanoma progression involves multiple molecular pathways. In this study, we explored the effect of immunoglobulin heavy constant gamma 1 (IGHG1) on melanoma progression. METHODS IGHG1, zinc finger E-box binding homeobox 1 (ZEB1), and cleavage stimulation factor subunit 2 tau variant (CSTF2T) expression levels were measured by quantitative reverse-transcription polymerase chain reaction and western blot. BALB/c nude mice were subcutaneously injected with A375 cells to develop a transplantation tumor model, 4 weeks after which the tumor tissues were collected. Cell proliferation, cell invasion, and cell migration of A375 and SK-MEL-28 cells were measured after gain- and loss-of-function of IGHG1, ZEB1, and CSTF2T. Binding of ZEB1 to the IGHG1 promoter was assayed by chromatin immunoprecipitation and dual-luciferase reporter gene assays, while binding of CSTF2T to ZEB1 mRNA was investigated by RNA immunoprecipitation and RNA pull-down assays. RESULTS IGHG1, ZEB1, and CSTF2T were all highly expressed in human melanoma cell lines. In A375 and SK-MEL-28 cells, ZEB1 binds directly to the IGHG1 promoter. ZEB1 silencing reduced IGHG1 expression and melanoma cell proliferative, invasive, and migratory properties, and these cellular effects were nullified by overexpression of IGHG1. CSTF2T binds directly to ZEB1 mRNA. Silencing of CSTF2T diminished ZEB1 expression and restrained melanoma cell proliferative, invasive, and migratory capabilities. The impacts of CSTF2T silencing on melanoma cells were counteracted by concomitant overexpression of ZEB1. CSTF2T knockdown reduced tumor volume and weight in nude mice. CONCLUSIONS The CSTF2T-ZEB1-IGHG1 axis promotes melanoma cell proliferation and invasion.
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Affiliation(s)
- Yanfei Li
- Department of Dermatology, People's Hospital of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia 010017, PR China; Department of Dermatology and STD, The First Hospital of Hohhot, Hohhot, Inner Mongolia 010030, PR China.
| | - Xia Yun
- Department of Science and Education, The First Hospital of Hohhot, Hohhot, Inner Mongolia 010030, PR China
| | - Jiaojiao Li
- Department of Dermatology and STD, The First Hospital of Hohhot, Hohhot, Inner Mongolia 010030, PR China
| | - Meilin Bai
- Department of Dermatology and STD, The First Hospital of Hohhot, Hohhot, Inner Mongolia 010030, PR China
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Lee JH, Lee SB, Kim H, Shin JM, Yoon M, An HS, Han JW. Anticancer Activity of Mannose-Specific Lectin, BPL2, from Marine Green Alga Bryopsis plumosa. Mar Drugs 2022; 20:md20120776. [PMID: 36547923 PMCID: PMC9788543 DOI: 10.3390/md20120776] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022] Open
Abstract
Lectin is a carbohydrate-binding protein that recognizes specific cells by binding to cell-surface polysaccharides. Tumor cells generally show various glycosylation patterns, making them distinguishable from non-cancerous cells. Consequently, lectin has been suggested as a good anticancer agent. Herein, the anticancer activity of Bryopsis plumosa lectins (BPL1, BPL2, and BPL3) was screened and tested against lung cancer cell lines (A549, H460, and H1299). BPL2 showed high anticancer activity compared to BPL1 and BPL3. Cell viability was dependent on BPL2 concentration and incubation time. The IC50 value for lung cancer cells was 50 μg/mL after 24 h of incubation in BPL2 containing medium; however, BPL2 (50 μg/mL) showed weak toxicity in non-cancerous cells (MRC5). BPL2 affected cancer cell growth while non-cancerous cells were less affected. Further, BPL2 (20 μg/mL) inhibited cancer cell invasion and migration (rates were ˂20%). BPL2 induced the downregulation of epithelial-to-mesenchymal transition-related genes (Zeb1, vimentin, and Twist). Co-treatment with BPL2 and gefitinib (10 μg/mL and 10 μM, respectively) showed a synergistic effect compared with monotherapy. BPL2 or gefitinib monotherapy resulted in approximately 90% and 70% cell viability, respectively, with concomitant treatment showing 40% cell viability. Overall, BPL2 can be considered a good candidate for development into an anticancer agent.
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Yin Q, Shi X, Lan S, Jin H, Wu D. Effect of melanoma stem cells on melanoma metastasis. Oncol Lett 2021; 22:566. [PMID: 34113394 PMCID: PMC8185701 DOI: 10.3892/ol.2021.12827] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/07/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer stem cells (CSCs) are involved in the metastatic process, the resistance of many types of cancer to therapeutic treatments and consequently the onset of recurrences. The CSC concept therefore significantly extends our understanding of melanoma biology. More recently, melanoma stem cells (MSCs) have been described in melanoma as expressing specific biomarkers. These primitive melanoma cells are not only capable of self-renewal and differentiation plasticity, but may also confer virulence via immune evasion and multidrug resistance, and potentially, via vasculogenic mimicry and transition to migratory and metastasizing derivatives. This review will present the specific biomarkers of MSCs, including CD133, ATP binding cassette subfamily B member 5, CD271, CD20 and aldehyde dehydrogenase, which can regulate the transduction of tumor-related signals. These signal molecules can reversely act on tumor cells and regulate tumor angiogenesis, leading to the occurrence of melanoma metastasis. Targeting these specific biomarkers could inhibit the progression of melanoma and may help the development of novel therapeutic strategies for melanoma.
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Affiliation(s)
- Qiliang Yin
- Department of Tumor Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiumin Shi
- Department of Tumor Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Shijie Lan
- Department of Tumor Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Haofan Jin
- Department of Tumor Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Di Wu
- Department of Tumor Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Intrinsic Balance between ZEB Family Members Is Important for Melanocyte Homeostasis and Melanoma Progression. Cancers (Basel) 2020; 12:cancers12082248. [PMID: 32796736 PMCID: PMC7465899 DOI: 10.3390/cancers12082248] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023] Open
Abstract
It has become clear that cellular plasticity is a main driver of cancer therapy resistance. Consequently, there is a need to mechanistically identify the factors driving this process. The transcription factors of the zinc-finger E-box-binding homeobox family, consisting of ZEB1 and ZEB2, are notorious for their roles in epithelial-to-mesenchymal transition (EMT). However, in melanoma, an intrinsic balance between ZEB1 and ZEB2 seems to determine the cellular state by modulating the expression of the master regulator of melanocyte homeostasis, microphthalmia-associated transcription factor (MITF). ZEB2 drives MITF expression and is associated with a differentiated/proliferative melanoma cell state. On the other hand, ZEB1 is correlated with low MITF expression and a more invasive, stem cell-like and therapy-resistant cell state. This intrinsic balance between ZEB1 and ZEB2 could prove to be a promising therapeutic target for melanoma patients. In this review, we will summarise what is known on the functional mechanisms of these transcription factors. Moreover, we will look specifically at their roles during melanocyte-lineage development and homeostasis. Finally, we will overview the current literature on ZEB1 and ZEB2 in the melanoma context and link this to the 'phenotype-switching' model of melanoma cellular plasticity.
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Jin L, Zhang Y, Liang W, Lu X, Piri N, Wang W, Kaplan HJ, Dean DC, Zhang L, Liu Y. Zeb1 promotes corneal neovascularization by regulation of vascular endothelial cell proliferation. Commun Biol 2020; 3:349. [PMID: 32620870 PMCID: PMC7335040 DOI: 10.1038/s42003-020-1069-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022] Open
Abstract
Angiogenesis is required for tissue repair; but abnormal angiogenesis or neovascularization (NV) causes diseases in the eye. The avascular status in the cornea is a prerequisite for corneal clarity and thought to be maintained by the equilibrium between proangiogenic and antiangiogenic factors that controls proliferation and migration of vascular endothelial cells (ECs) sprouting from the pericorneal plexus. VEGF is the most important intrinsic factor for angiogenesis; anti-VEGF therapies are available for treating ocular NV. However, the effectiveness of the therapies is limited because of VEGF-independent mechanism(s). We show that Zeb1 is an important factor promoting vascular EC proliferation and corneal NV; and a couple of small molecule inhibitors can evict Ctbp from the Zeb1-Ctbp complex, thereby reducing EC Zeb1 expression, proliferation, and corneal NV. We conclude that Zeb1-regulation of angiogenesis is independent of Vegf and that the ZEB1-CtBP inhibitors can be of potential therapeutic significance in treating corneal NV.
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Affiliation(s)
- Lei Jin
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, 116033, China
| | - Yingnan Zhang
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Science Key Lab, Beijing, 100730, China
| | - Wei Liang
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, 116033, China
| | - Xiaoqin Lu
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Niloofar Piri
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Wei Wang
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Henry J Kaplan
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Douglas C Dean
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
- Birth Defects Center, University of Louisville School of Dentistry, Louisville, KY, 40202, USA.
- James Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
| | - Lijun Zhang
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, 116033, China.
| | - Yongqing Liu
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
- Birth Defects Center, University of Louisville School of Dentistry, Louisville, KY, 40202, USA.
- James Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
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Liu H, Chen B, Li Y. microRNA-203 promotes proliferation, differentiation, and migration of osteoblasts by upregulation of Msh homeobox 2. J Cell Physiol 2019; 234:17639-17648. [PMID: 30854680 DOI: 10.1002/jcp.28387] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/30/2019] [Accepted: 02/01/2019] [Indexed: 12/21/2022]
Abstract
Despite the improvements in fracture healing, about 10% of patients undergo abnormal healing. As a tumor suppressor, upregulation of microRNA (miR)-203 has been observed in osteogenic differentiation. Herein, we aimed to explore the functional role of miR-203 in osteoblasts as well as the underlying mechanisms. The expression of miR-203 in MC3T3-E1 cells that underwent osteogenic differentiation was determined by quantitative reverse transcription PCR (qRT-PCR). The effects of aberrantly expressed miR-203 on cell viability, migration, and expressions of proteins associated with proliferation, migration, and osteogenic differentiation were measured by using a Cell Counting Kit-8 assay, Transwell cell migration assay, and western blot/qRT-PCR, respectively. The possible downstream factor of miR-203 was subsequently studied. Finally, involvements of the mitogen-activated protein kinase (MAPK)/activator of transcription (STAT) pathways were assessed by western blot. We found that the miR-203 level was increased in osteogenic differentiation of MC3T3-E1 cells with increasing duration time (28th day, p < 0.001). After cell transfection, we interestingly found that miR-203 overexpression could increase cell viability (p < 0.05), promote proliferation, migration (p < 0.05), and osteogenic differentiation, and upregulate Msh homeobox 2 (Msx2) expression. Furthermore, Msx2 knockdown was proved to abrogate the effects of miR-203 overexpression on MC3T3-E1 cells. Finally, phosphorylated levels of key kinases in the MAPK/STAT pathways were increased by miR-203 overexpression via upregulating Msx2 expression. In conclusion, miR-203 overexpression promoted proliferation, migration, and osteogenic differentiation of MC3T3-E1 cells through upregulating Msx2 along with activation of the MAPK/STAT pathways.
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Affiliation(s)
- Haochuan Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Bing Chen
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yi Li
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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Epithelial-mesenchymal transition (EMT) beyond EGFR mutations per se is a common mechanism for acquired resistance to EGFR TKI. Oncogene 2018; 38:455-468. [PMID: 30111817 DOI: 10.1038/s41388-018-0454-2] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/08/2018] [Accepted: 06/29/2018] [Indexed: 11/08/2022]
Abstract
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) is a major advance in treating NSCLC with EGFR-activating mutations. However, acquired resistance, due partially to secondary mutations limits their use. Here we report that NSCLC cells with acquired resistance to gefitinib or osimertinib (AZD9291) exhibit EMT features, with a decrease in E-cadherin, and increases in vimentin and stemness, without possessing any EGFR secondary mutations. Knockdown of E-cadherin in parental cells increased gefitinib resistance and stemness, while knockdown of vimentin in resistant cells resulted in opposite effects. Src activation and Hakai upregulation were found in gefitinib-resistant cells. Knockdown of Hakai elevated E-cadherin expression, attenuated stemness, and resensitized the cells to gefitinib. Clinical cancer specimens with acquired gefitinib resistance also showed a decrease in E-cadherin and an increase in Hakai expression. The dual HDAC and HMGR inhibitor JMF3086 inhibited the Src/Hakai and Hakai/E-cadherin interaction to reverse E-cadherin expression, and attenuated vimentin and stemness to restore gefitinib sensitivity. The EMT features of AZD9291-resistant H1975 cells were related to the upregulation of Zeb1. Both gefitinib and AZD9291 sensitivity was restored by JMF3086 through reversing EMT. Our study not only revealed a common mechanism of EMT in both gefitinib and AZD9291 resistance beyond EGFR mutations per se, but also provides a new strategy to overcome it.
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8
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Li L, Li S. miR-205-5p inhibits cell migration and invasion in prostatic carcinoma by targeting ZEB1. Oncol Lett 2018; 16:1715-1721. [PMID: 30008858 PMCID: PMC6036508 DOI: 10.3892/ol.2018.8862] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 05/16/2018] [Indexed: 02/01/2023] Open
Abstract
Many studies have demonstrated that miRNAs have influence on tumorigenesis and progression of human cancers, including invasion and migration. Thus, the role of miR-205/ZEB1 axis for the migration and invasion of prostate cancer cells was explored in the present study. The miR-205-5p and zinc finger E-box binding homeobox 1 (ZEB1) mRNA expression levels were observed in prostate cancer tissues or cell lines via reverse transcription-quantitative PCR (RT-qPCR), and the protein level of ZEB1 was measured by western blotting. Dual-Luciferase Reporter Assay was used to verify the relationship between miR-205-5p and ZEB1. In addition, cell migration and invasion was measured by Transwell assay. The results revealed that, compared with the control, downregulation of miR-205-5p was detected in prostate cancer tissues and cell lines, and miR-205-5p overexpression was found to inhibit cell migration and invasion. Moreover, miR-205-5p was confirmed to directly target ZEB1 in prostate cancer. Importantly, ZEB1 was identified to weaken the inhibitory effect of miR-205-5p in prostate cancer. In conclusion, miR-205-5p inhibited cell migration and invasion in prostatic carcinoma by targeting ZEB1 and miR-205-5p/ZEB1 axis shows potential to be developed in therapeutic strategies for prostate cancer.
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Affiliation(s)
- Lianpeng Li
- Department of Urological Surgery, Binzhou Central Hospital, Binzhou, Shandong 251700, P.R. China
| | - Shouqiang Li
- Department of Urological Surgery, People's Hospital of Dongying District, Dongying, Shandong 257000, P.R. China
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9
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Zhang Y, Wang J, Wu D, Li M, Zhao F, Ren M, Cai Y, Dou J. IL-21-secreting hUCMSCs combined with miR-200c inhibit tumor growth and metastasis via repression of Wnt/β-catenin signaling and epithelial-mesenchymal transition in epithelial ovarian cancer. Onco Targets Ther 2018; 11:2037-2050. [PMID: 29692616 PMCID: PMC5901132 DOI: 10.2147/ott.s147855] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background Epithelial ovarian cancer (EOC) with insidious characteristic manifests no symptoms in its early onset but most patients have advanced and distant cancer metastasis at diagnosis. Innovative early diagnosis and effective treatment of EOC are urgently needed. Methods In the study, we developed a novel agent of IL-21-secreting human umbilical cord mesenchymal stem cells (hUCMSCs) combined with miR-200c to evaluate its effects on SKOV3 EOC in vitro and in vivo. Results hUCMSCs-LV-IL-21 combined with miR-200c significantly inhibited the SKOV3 cell mobility and tumorigenesis compared with hUCMSCs-LV-IL-21, hUCMSCs-LV-vector, and hUCMSCs, respectively. These were reflected in decreasing the tumor sizes and elongating the tumor bearing nude mouse survival, accompanied with increasing the serum cytokine levels of IFN-γ, IL-21 and TNF-α as well as the splenocyte cytotoxicity. In addition, the expression of β-catenin, cyclin-D1, Gli1, Gli2, and ZEB1 was decreased but the E-cadherin expression was increased in tumor tissues of mice treated with hUCMSCs-LV-IL-21 plus miR-200c. Conclusion We demonstrated that the synergistic effect of fighting SKOV3 EOC is attributable to repression of Wnt/β-catenin signaling and epithelial-mesenchymal transition in SKOV3 EOC. The findings may provide a new strategy for therapy of EOC.
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Affiliation(s)
- Yunxia Zhang
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, People's Republic of China.,Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Jing Wang
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Di Wu
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Miao Li
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Fenshu Zhao
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Mulan Ren
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Yunlong Cai
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People's Republic of China
| | - Jun Dou
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, People's Republic of China
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10
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Koch K, Hartmann R, Schröter F, Suwala AK, Maciaczyk D, Krüger AC, Willbold D, Kahlert UD, Maciaczyk J. Reciprocal regulation of the cholinic phenotype and epithelial-mesenchymal transition in glioblastoma cells. Oncotarget 2018; 7:73414-73431. [PMID: 27705917 PMCID: PMC5341988 DOI: 10.18632/oncotarget.12337] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 09/19/2016] [Indexed: 12/21/2022] Open
Abstract
Glioblastoma (GBM) is the most malignant brain tumor with very limited therapeutic options. Standard multimodal treatments, including surgical resection and combined radio-chemotherapy do not target the most aggressive subtype of glioma cells, brain tumor stem cells (BTSCs). BTSCs are thought to be responsible for tumor initiation, progression, and relapse. Furthermore, they have been associated with the expression of mesenchymal features as a result of epithelial-mesenchymal transition (EMT) thereby inducing tumor dissemination and chemo resistance. Using high resolution proton nuclear magnetic resonance spectroscopy (1H NMR) on GBM cell cultures we provide evidence that the expression of well-known EMT activators of the ZEB, TWIST and SNAI families and EMT target genes N-cadherin and VIMENTIN is associated with aberrant choline metabolism. The cholinic phenotype is characterized by high intracellular levels of phosphocholine and total choline derivatives and was associated with malignancy in various cancers. Both genetic and pharmacological inhibition of the cardinal choline metabolism regulator choline kinase alpha (CHKα) significantly reduces the cell viability, invasiveness, clonogenicity, and expression of EMT associated genes in GBM cells. Moreover, in some cell lines synergetic cytotoxic effects were observed when combining the standard of care chemotherapeutic temozolomide with the CHKα inhibitor V-11-0711. Taken together, specific inhibition of the enzymatic activity of CHKα is a powerful strategy to suppress EMT which opens the possibility to target chemo-resistant BTSCs through impairing their mesenchymal transdifferentiation. Moreover, the newly identified EMT-oncometabolic network may be helpful to monitor the invasive properties of glioblastomas and the success of anti-EMT therapy.
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Affiliation(s)
- Katharina Koch
- Neurosurgery Department, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Rudolf Hartmann
- Institute of Complex Systems (ICS-6) Structural Biochemistry, Forschungszentrum Juelich, Juelich, Germany
| | - Friederike Schröter
- Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - Abigail Kora Suwala
- Neurosurgery Department, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Donata Maciaczyk
- Neurosurgery Department, University Hospital Duesseldorf, Duesseldorf, Germany
| | | | - Dieter Willbold
- Institute of Complex Systems (ICS-6) Structural Biochemistry, Forschungszentrum Juelich, Juelich, Germany.,Institut für Physikalische Biologie, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - Ulf Dietrich Kahlert
- Neurosurgery Department, University Hospital Duesseldorf, Duesseldorf, Germany.,Neurosurgery and Pediatric Neurosurgery, Medical University Lublin, Lublin, Poland
| | - Jaroslaw Maciaczyk
- Neurosurgery Department, University Hospital Duesseldorf, Duesseldorf, Germany
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11
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Shi Q, He Q, Wei J. MicroRNA-342 Prohibits Proliferation and Invasion of Melanoma Cells by Directly Targeting Zinc-Finger E-Box-Binding Homeobox 1. Oncol Res 2018; 26:1447-1455. [PMID: 29495972 PMCID: PMC7844687 DOI: 10.3727/096504018x15193823766141] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
As documented in numerous studies, microRNAs (miRNAs) play key roles in various biological processes associated with melanoma occurrence and development. In this study, we found that miRNA-342 (miR-342) was significantly downregulated in melanoma tissues and cell lines. Additionally, the ectopic expression of miR-342 prohibited the cell proliferation and invasion of melanoma. Moreover, zinc-finger E-box-binding homeobox 1 (ZEB1) was identified as a direct target gene of miR-342 in melanoma. Similar with the results induced by miR-342 overexpression, ZEB1 knockdown attenuated cell proliferation and invasion in melanoma. Furthermore, the restoration of ZEB1 expression reversed the suppressive effects of miR-342 on the proliferation and invasion of melanoma cells. These findings suggest that miR-342 may play tumor-suppressing roles in melanoma, at least partially, by directly inhibiting ZEB1 expression. Therefore, miR-342 may be developed as a potential candidate for the treatment of patients with this aggressive type of cancer.
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Affiliation(s)
- Quan Shi
- Department of Dermatology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, P.R. China
| | - Qi He
- Department of Dermatology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, P.R. China
| | - Jing Wei
- Department of Dermatology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, P.R. China
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12
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Ma Z, Xin Z, Hu W, Jiang S, Yang Z, Yan X, Li X, Yang Y, Chen F. Forkhead box O proteins: Crucial regulators of cancer EMT. Semin Cancer Biol 2018; 50:21-31. [PMID: 29427645 DOI: 10.1016/j.semcancer.2018.02.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 12/02/2017] [Accepted: 02/05/2018] [Indexed: 12/12/2022]
Abstract
The epithelial-mesenchymal transition (EMT) is an acknowledged cellular transition process in which epithelial cells acquire mesenchymal-like properties that endow cancer cells with increased migratory and invasive behavior. Forkhead box O (FOXO) proteins have been shown to orchestrate multiple EMT-associated pathways and EMT-related transcription factors (EMT-TFs), thereby modulating the EMT process. The focus of the current review is to evaluate the latest research progress regarding the roles of FOXO proteins in cancer EMT. First, a brief overview of the EMT process in cancer and a general background on the FOXO family are provided. Next, we present the interactions between FOXO proteins and multiple EMT-associated pathways during malignancy development. Finally, we propose several novel potential directions for future research. Collectively, the information compiled herein should serve as a comprehensive repository of information on this topic and should aid in the design of additional studies and the future development of FOXO proteins as therapeutic targets.
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Affiliation(s)
- Zhiqiang Ma
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi'an 710069 China; Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Zhenlong Xin
- Department of Occupational and Environmental Health and The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Wei Hu
- Department of Immunology, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Shuai Jiang
- Department of Aerospace Medicine, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Zhi Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Xiaolong Yan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Xiaofei Li
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an 710038, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi'an 710069 China; Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China.
| | - Fulin Chen
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi'an 710069 China.
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Liu Y, Nan F, Lu K, Wang Y, Liu Y, Wei S, Wu R, Wang Y. Identification of key genes in endometrioid endometrial adenocarcinoma via TCGA database. Cancer Biomark 2017; 21:11-21. [PMID: 29060924 DOI: 10.3233/cbm-170164] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yanni Liu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Fangfang Nan
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Kexin Lu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Yunfang Wang
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Yu Liu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Shuangyan Wei
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Ruixue Wu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Ying Wang
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong, China
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Zhao F, Zhang R, Wang J, Wu D, Pan M, Li M, Guo M, Dou J. Effective tumor immunity to melanoma mediated by B16F10 cancer stem cell vaccine. Int Immunopharmacol 2017; 52:238-244. [PMID: 28950176 DOI: 10.1016/j.intimp.2017.09.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/18/2017] [Accepted: 09/19/2017] [Indexed: 12/29/2022]
Abstract
Although tumor vaccines have been considered a promising immunotherapy approach, therapeutic tumor vaccines are mostly disappointing in the clinic due to vaccine weak immunogenicity. Cancer stem cells (CSCs) may broaden the antigenic breadth and effectively induce the immune responses against autologous cancer cells. Here we report on the development of the B16F10 CD133+CD44+CSCs (B16F10 CSCs) vaccine to induce tumor immunity to melanoma in mice. Efficacy of against melanoma was evaluated by analysis of tumor growth and mouse survival. Immunogenicity was assessed by ELISA and flow cytometric assays, including serum cytokines, cytotoxic activity of NK cells and splenocytes in the immunized mice. The results showed that the B16F10 CSC vaccine resulted in tumor shrinkage and mouse lifespan extension. The cytotoxic activity and IFN-γ level were significantly increased in mice immunized with B16F10 CSC vaccine compared with the mice immunized with control vaccines. Additionally, New York esophageal squamous cell carcinoma-1, an efficient tumor associated antigen over-expressed by B16F10 CSCs, was markedly reduced in expression in melanoma tissue, suggesting decrease of CSC subpopulation due to B16F10 CSC vaccination. Collectively, the findings may represent a new powerful approach for treatment of melanoma by B16F10 CSC vaccination.
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Affiliation(s)
- Fengshu Zhao
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Rong Zhang
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Jing Wang
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Di Wu
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Meng Pan
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Miao Li
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Mei Guo
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China
| | - Jun Dou
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing 210009, China.
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15
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Zang H, Li N, Pan Y, Hao J. Identification of upstream transcription factors (TFs) for expression signature genes in breast cancer. Gynecol Endocrinol 2017; 33:193-198. [PMID: 27809618 DOI: 10.1080/09513590.2016.1239253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Breast cancer is a common malignancy among women with a rising incidence. Our intention was to detect transcription factors (TFs) for deeper understanding of the underlying mechanisms of breast cancer. Integrated analysis of gene expression datasets of breast cancer was performed. Then, functional annotation of differentially expressed genes (DEGs) was conducted, including Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment. Furthermore, TFs were identified and a global transcriptional regulatory network was constructed. Seven publically available GEO datasets were obtained, and a set of 1196 DEGs were identified (460 up-regulated and 736 down-regulated). Functional annotation results showed that cell cycle was the most significantly enriched pathway, which was consistent with the fact that cell cycle is closely related to various tumors. Fifty-three differentially expressed TFs were identified, and the regulatory networks consisted of 817 TF-target interactions between 46 TFs and 602 DEGs in the context of breast cancer. Top 10 TFs covering the most downstream DEGs were SOX10, NFATC2, ZNF354C, ARID3A, BRCA1, FOXO3, GATA3, ZEB1, HOXA5 and EGR1. The transcriptional regulatory networks could enable a better understanding of regulatory mechanisms of breast cancer pathology and provide an opportunity for the development of potential therapy.
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Affiliation(s)
- Hongyan Zang
- a Department of Breast Surgery , Yantaishan Hospital , Yantai , China and
| | - Ning Li
- b Department of Human Anatomy , School of Basic Medicine, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Yuling Pan
- b Department of Human Anatomy , School of Basic Medicine, Shandong University of Traditional Chinese Medicine , Jinan , China
| | - Jingguang Hao
- a Department of Breast Surgery , Yantaishan Hospital , Yantai , China and
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16
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Le Coz V, Zhu C, Devocelle A, Vazquez A, Boucheix C, Azzi S, Gallerne C, Eid P, Lecourt S, Giron-Michel J. IGF-1 contributes to the expansion of melanoma-initiating cells through an epithelial-mesenchymal transition process. Oncotarget 2016; 7:82511-82527. [PMID: 27764776 PMCID: PMC5347710 DOI: 10.18632/oncotarget.12733] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 10/12/2016] [Indexed: 01/16/2023] Open
Abstract
Melanoma is a particularly virulent human cancer, due to its resistance to conventional treatments and high frequency of metastasis. Melanomas contain a fraction of cells, the melanoma-initiating cells (MICs), responsible for tumor propagation and relapse. Identification of the molecular pathways supporting MICs is, therefore, vital for the development of targeted treatments. One factor produced by melanoma cells and their microenvironment, insulin-like growth factor-1 (IGF- 1), is linked to epithelial-mesenchymal transition (EMT) and stemness features in several cancers.We evaluated the effect of IGF-1 on the phenotype and chemoresistance of B16-F10 cells. IGF-1 inhibition in these cells prevented malignant cell proliferation, migration and invasion, and lung colony formation in immunodeficient mice. IGF-1 downregulation also markedly inhibited EMT, with low levels of ZEB1 and mesenchymal markers (N-cadherin, CD44, CD29, CD105) associated with high levels of E-cadherin and MITF, the major regulator of melanocyte differentiation. IGF-1 inhibition greatly reduced stemness features, including the expression of key stem markers (SOX2, Oct-3/4, CD24 and CD133), and the functional characteristics of MICs (melanosphere formation, aldehyde dehydrogenase activity, side population). These features were associated with a high degree of sensitivity to mitoxantrone treatment.In this study, we deciphered new connections between IGF-1 and stemness features and identified IGF-1 as instrumental for maintaining the MIC phenotype. The IGF1/IGF1-R nexus could be targeted for the development of more efficient anti-melanoma treatments. Blocking the IGF-1 pathway would improve the immune response, decrease the metastatic potential of tumor cells and sensitize melanoma cells to conventional treatments.
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Affiliation(s)
- Vincent Le Coz
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Chaobin Zhu
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Aurore Devocelle
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Aimé Vazquez
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Claude Boucheix
- INSERM UMRS 1193, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Sandy Azzi
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Cindy Gallerne
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Pierre Eid
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Séverine Lecourt
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
| | - Julien Giron-Michel
- INSERM UMRS 1197, Hôpital Paul Brousse, 94807 Villejuif Cedex, France
- Université Paris-Saclay, 91190, France
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17
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Richard G, Dalle S, Monet MA, Ligier M, Boespflug A, Pommier RM, de la Fouchardière A, Perier-Muzet M, Depaepe L, Barnault R, Tondeur G, Ansieau S, Thomas E, Bertolotto C, Ballotti R, Mourah S, Battistella M, Lebbé C, Thomas L, Puisieux A, Caramel J. ZEB1-mediated melanoma cell plasticity enhances resistance to MAPK inhibitors. EMBO Mol Med 2016; 8:1143-1161. [PMID: 27596438 PMCID: PMC5048365 DOI: 10.15252/emmm.201505971] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Targeted therapies with MAPK inhibitors (MAPKi) are faced with severe problems of resistance in BRAF-mutant melanoma. In parallel to the acquisition of genetic mutations, melanoma cells may also adapt to the drugs through phenotype switching. The ZEB1 transcription factor, a known inducer of EMT and invasiveness, is now considered as a genuine oncogenic factor required for tumor initiation, cancer cell plasticity, and drug resistance in carcinomas. Here, we show that high levels of ZEB1 expression are associated with inherent resistance to MAPKi in BRAFV600-mutated cell lines and tumors. ZEB1 levels are also elevated in melanoma cells with acquired resistance and in biopsies from patients relapsing while under treatment. ZEB1 overexpression is sufficient to drive the emergence of resistance to MAPKi by promoting a reversible transition toward a MITFlow/p75high stem-like and tumorigenic phenotype. ZEB1 inhibition promotes cell differentiation, prevents tumorigenic growth in vivo, sensitizes naive melanoma cells to MAPKi, and induces cell death in resistant cells. Overall, our results demonstrate that ZEB1 is a major driver of melanoma cell plasticity, driving drug adaptation and phenotypic resistance to MAPKi.
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Affiliation(s)
- Geoffrey Richard
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
| | - Stéphane Dalle
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France Dermatology Unit, Hospices Civils de Lyon CH Lyon Sud, Pierre Bénite Cedex, France
| | - Marie-Ambre Monet
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
| | - Maud Ligier
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
| | - Amélie Boespflug
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France Dermatology Unit, Hospices Civils de Lyon CH Lyon Sud, Pierre Bénite Cedex, France
| | - Roxane M Pommier
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
| | - Arnaud de la Fouchardière
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France Department of Biopathology, Centre Léon Bérard, Lyon, France
| | - Marie Perier-Muzet
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France Dermatology Unit, Hospices Civils de Lyon CH Lyon Sud, Pierre Bénite Cedex, France
| | - Lauriane Depaepe
- Department of Biopathology, Hospices Civils de Lyon CH Lyon Sud, Pierre-Bénite Cedex, France
| | - Romain Barnault
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
| | - Garance Tondeur
- Department of Biopathology, Hospices Civils de Lyon CH Lyon Sud, Pierre-Bénite Cedex, France
| | - Stéphane Ansieau
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
| | - Emilie Thomas
- Fondation Synergie Lyon Cancer, Centre Léon Bérard, Lyon, France
| | - Corine Bertolotto
- INSERM U1065 Equipe 1 Biologie et pathologies des mélanocytes: de la pigmentation cutanée au mélanome Equipe labellisée Ligue 2013 Centre Méditerranéen de Médecine Moléculaire, Nice, France Université de Nice Sophia-Antipolis UFR Médecine, Nice, France CHU Nice Service de Dermatologie, Nice, France
| | - Robert Ballotti
- INSERM U1065 Equipe 1 Biologie et pathologies des mélanocytes: de la pigmentation cutanée au mélanome Equipe labellisée Ligue 2013 Centre Méditerranéen de Médecine Moléculaire, Nice, France Université de Nice Sophia-Antipolis UFR Médecine, Nice, France CHU Nice Service de Dermatologie, Nice, France
| | - Samia Mourah
- APHP INSERM U976 Saint Louis Hospital Pharmacology-Genetic Laboratory Paris, Paris, France
| | - Maxime Battistella
- Department of Pathology, INSERM U1165 Université Paris Diderot AP-HP Hôpital Saint-Louis, Paris, France
| | - Céleste Lebbé
- Department of Dermatology, APHP Saint Louis Hospital, Paris, France INSERM U976 University Paris 7 Diderot, Paris, France
| | - Luc Thomas
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France Dermatology Unit, Hospices Civils de Lyon CH Lyon Sud, Pierre Bénite Cedex, France
| | - Alain Puisieux
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France Institut Universitaire de France, Paris, France
| | - Julie Caramel
- Cancer Research Center of Lyon, INSERM U1052, Lyon, France Cancer Research Center of Lyon, CNRS UMR 5286, Lyon, France Université de Lyon, Lyon, France ISPB Université Lyon 1, Lyon, France Centre Léon Bérard, Lyon, France
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18
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Castro-Muñozledo F, Meza-Aguilar DG, Domínguez-Castillo R, Hernández-Zequinely V, Sánchez-Guzmán E. Vimentin as a Marker of Early Differentiating, Highly Motile Corneal Epithelial Cells. J Cell Physiol 2016; 232:818-830. [DOI: 10.1002/jcp.25487] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 07/11/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Federico Castro-Muñozledo
- Department of Cell Biology; Centro de Investigación y de Estudios Avanzados del IPN; México City Mexico
| | - Diana G. Meza-Aguilar
- Department of Cell Biology; Centro de Investigación y de Estudios Avanzados del IPN; México City Mexico
| | - Rocío Domínguez-Castillo
- Department of Molecular Biomedicine; Centro de Investigación y de Estudios Avanzados del IPN; México City Mexico
| | | | - Erika Sánchez-Guzmán
- Department of Cell Biology; Centro de Investigación y de Estudios Avanzados del IPN; México City Mexico
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19
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Ma Z, Li Y, Xu J, Ren Q, Yao J, Tian X. MicroRNA-409-3p regulates cell invasion and metastasis by targeting ZEB1 in breast cancer. IUBMB Life 2016; 68:394-402. [PMID: 27079864 DOI: 10.1002/iub.1494] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/27/2016] [Indexed: 02/04/2023]
Abstract
MicroRNA-409-3p (miR-409-3p) is an miRNA expressed by embryonic stem cells, and our previous study demonstrated depressed miR-409-3p expression in human breast cancer (BC) cell lines; however, its role and function in BC metastasis are still unknown. The purpose of this study was to examine the expression levels of miR-409-3p in human BC and its role in the metastasis of BC. We analyzed the status of miR-409-3p expression in BC tissues by quantitative real-time polymerase chain reaction (PCR) and its relationship to the clinicopathologic features of patients with BC. To study the role of miR-409-3p in BC metastasis, the invasion ability of BC cells was detected by transwell invasion assays and wound healing assays. WST-1 assays and colony formation assays were used to investigate cell proliferation. Luciferase reporter assays were used to verify that miR-409-3p targeted zinc-finger E-box-binding homeobox 1 (ZEB1). Western blot analyses and transwell assays were carried out to assess ZEB1 expression and its role in BC cell metastasis. The expression of miR-409-3p was lower in tumor tissues than in noncancerous breast tissues. We verified that miR-409-3p levels were downregulated and significantly correlated with poor outcomes in patients with BC. Overexpression of miR-409-3p inhibited cellular proliferation and suppressed cellular migration and invasion in vitro and in vivo. Dual-luciferase reporter assays showed that miR-409-3p binds the 3'-untranslated region (3'-UTR) of ZEB1, suggesting that ZEB1 is a direct target of miR-409-3p. Western blot analysis confirmed that overexpression of miR-409-3p reduced ZEB1 protein levels. These data demonstrate that miR-409-3p plays an important role in regulating the metastasis of BC, which is involved in the post-transcriptional repression of ZEB1. Our results indicate that miR-409-3p can regulate the invasion and metastasis process of BC by targeting ZEB1 and may serve as a new prognostic marker and therapeutic target for treating BC metastasis. © 2016 IUBMB Life, 68(5):394-402, 2016.
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Affiliation(s)
- Zhenhai Ma
- Breast Cancer Key Laboratory of Dalian, Department of Breast Disease and Reconstruction Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Yang Li
- Breast Cancer Key Laboratory of Dalian, Department of Breast Disease and Reconstruction Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Jingchao Xu
- Breast Cancer Key Laboratory of Dalian, Department of Breast Disease and Reconstruction Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Qiaozhen Ren
- Breast Cancer Key Laboratory of Dalian, Department of Breast Disease and Reconstruction Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Xiaofeng Tian
- Breast Cancer Key Laboratory of Dalian, Department of Breast Disease and Reconstruction Center, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
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Reinforcing B16F10/GPI-IL-21 vaccine efficacy against melanoma by injecting mice with shZEB1 plasmid or miR200c agomir. Biomed Pharmacother 2016; 80:136-144. [PMID: 27133050 DOI: 10.1016/j.biopha.2016.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 03/13/2016] [Accepted: 03/13/2016] [Indexed: 12/13/2022] Open
Abstract
In this study, we hypothesized that the inhibition of epithelial to mesenchymal transition (EMT) program by knockdown of Zinc-finger E-box binding homeobox 1 (ZEB1) or administration of miR200c agomir would strengthen the B16F10 cells transfected with GPI-anchored IL-21 (B16F10/GPI-IL-21) vaccine efficacy in inhibiting the melanoma metastasis. Our findings from the current study indicated that, when compared with the mice immunized with the B16F10/GPI-IL-21 vaccine alone, the mice immunized with B16F10/GPI-IL-21 vaccine combined with injection of shZEB1 plasmid or miR200c agomir not only meaningfully inhibited EMT of melanoma, reduced the EMT characteristic molecular expression in tumor tissues, but also significantly decreased the Treg cells and TGF-β1, enhanced the cytotoxicities of NK cells and cytotoxic T lymphocytes and the IFN-γ level. Furthermore, the immunotherapeutic combination resulted in inhibiting the melanoma growth and lung metastasis. Our study demonstrated that using the B16F10/GPI-IL-21 vaccine in combination with the down-regulated ZEB1 or miR200c administration effectively elicited anti-tumor immunity and reduced melanoma metastasis by inhibiting the EMT program in the B16F10 melanoma-bearing mice.
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21
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MelanA-negative spindle-cell associated melanoma, a distinct inflammatory phenotype correlated with dense infiltration of CD163 macrophages and loss of E-cadherin. Melanoma Res 2015; 25:113-8. [PMID: 25602697 DOI: 10.1097/cmr.0000000000000138] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
MelanA is a known melanocyte marker and is important in melanoma diagnostics. Some tumours, however, show loss of MelanA expression and may therefore be difficult to distinguish from tumours of mesenchymal origin. Pure spindle-cell melanoma is a rare event, and little is known about its biological background and prognosis. However, morphological changes towards a more mesenchymal shape and cellular dedifferentiation may correlate with reactivation of important developmental programmes (epithelial-to-mesenchymal transition) and disseminative tumour cell properties. Inflammation and CD163+ macrophages have been shown to be important inducers of E-cadherin and cell-to-cell adhesion loss, a pivotal and final event of epithelial-to-mesenchymal transition. In a cohort of 385 patients with melanoma, we located nine tumours with a clonal MelanA expression, defined as a tumour section with a distinct MelanA-negative clone next to a MelanA-positive clone. Interestingly, MelanA-negative clones correlated significantly with an augmented inflammatory response of tumour-infiltrating macrophages (CD163+), complete loss of E-cadherin and a spindle-shaped morphology, irrespective of ulcerated status. These cases show the inflammatory heterogeneity of melanoma, which may have important diagnostic, prognostic and therapeutic implications for the patients. We show that melanomas harbour cell clones that bear strong resemblance to tumour-associated macrophages, a pivotal player in a tumour-supporting microenvironment. Interestingly, this distinct inflammatory phenotype is associated with loss of MelanA expression, the presence of spindle-shape morphology and complete loss of E-cadherin, considered as possible markers of poorly differentiated and more invasive tumour cells.
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22
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Sun X, Li Y, Yu J, Pei H, Luo P, Zhang J. miR-128 modulates chemosensitivity and invasion of prostate cancer cells through targeting ZEB1. Jpn J Clin Oncol 2015; 45:474-82. [PMID: 25921099 DOI: 10.1093/jjco/hyv027] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 02/07/2015] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE Recent reports strongly suggest the profound role of miRNAs in cancer therapeutic response and progression, including invasion and metastasis. The sensitivity to therapy and invasion is the major obstacle for successful treatment in prostate cancer. We aimed to investigate the regulative effect of miR-128/zinc-finger E-box-binding homeobox 1 axis on prostate cancer cell chemosensitivity and invasion. METHODS The miR-128 expression pattern of prostate cancer cell lines and tissues was detected by real-time reverse transcriptase-polymerase chain reaction, while the mRNA and protein expression levels of zinc-finger E-box-binding homeobox 1 were measured by real-time reverse transcriptase-polymerase chain reaction and western blot assay, respectively. Dual-luciferase reporter gene assay was used to find the direct target of miR-128. Furthermore, prostate cancer cells were treated with miR-128 mimic or zinc-finger E-box-binding homeobox 1-siRNA, and then the cells' chemosensitivity and invasion were detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and transwell assay, respectively. RESULTS We found miR-128 expression obviously decreased in prostate cancer tissues compared with paired normal tissues. Restored miR-128 expression sensitized prostate cancer cells to cisplatin and inhibited the invasion. Furthermore, there was an inverse expression pattern between miR-128 and zinc-finger E-box-binding homeobox 1 in prostate cancer cells and tissues, and zinc-finger E-box-binding homeobox 1 was identified as a direct target of miR-128 in prostate cancer. Knockdown of zinc-finger E-box-binding homeobox 1 expression efficiently sensitized prostate cancer cells to cisplatin and inhibited the invasion. However, ectopic zinc-finger E-box-binding homeobox 1 expression impaired the effects of miR-128 on chemosensitivity and invasion in prostate cancer cells. CONCLUSIONS miR-128 functions as a potential cancer suppressor in prostate cancer progression and rational therapeutic strategies for prostate cancer would be developed based on miR-128/zinc-finger E-box-binding homeobox 1 axis.
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Affiliation(s)
- Xianglun Sun
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei
| | - Youkong Li
- Jingzhou Central Hospital, Huazhong University of Science and Technology, Jingzhou, Hubei
| | - Jie Yu
- Jingzhou Central Hospital, Huazhong University of Science and Technology, Jingzhou, Hubei
| | - Hong Pei
- Jingzhou Central Hospital, Huazhong University of Science and Technology, Jingzhou, Hubei
| | - Pengcheng Luo
- Huangshi Central Hospital, Hubei Polytechnic University, Huangshi, Hubei, PR China
| | - Jie Zhang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei Huangshi Central Hospital, Hubei Polytechnic University, Huangshi, Hubei, PR China
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Wang J, Chen D, He X, Zhang Y, Shi F, Wu D, Chen J, Zhang Y, Zhao F, Dou J. Downregulated lincRNA HOTAIR expression in ovarian cancer stem cells decreases its tumorgeniesis and metastasis by inhibiting epithelial-mesenchymal transition. Cancer Cell Int 2015; 15:24. [PMID: 25792974 PMCID: PMC4365532 DOI: 10.1186/s12935-015-0174-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 02/10/2015] [Indexed: 12/28/2022] Open
Abstract
Background Emerging evidence indicates that dysregulated long intervening non-coding RNA (lincRNA) HOTAIR correlates highly with tumor invasion and metastasis but a link between the high expression of HOTAIR and the metastatic cascade of cancer stem cells (CSCs) needs to be further studied. The purpose of this study was to investigate the effect of down-regulated HOTAIR expression on tumorgeniesis and metastasis of epithelial ovarian cancer (EOC) CSCs. CD117+CD44+CSCs were isolated from human EOC SKOV3 cell line by using a magnetic-activated cell sorting system, and were then transfected with the expression vector-based small hairpin RNA targeting HOTAIR; the stably transfected cells were selected for the study. Colony-forming, wound-healing, cellular metastasis and tumorigenicity assays were performed. Results The results demonstrated that the HOTAIR expression in clinical EOC tissues and SKOV3 CD117+CD44+CSCs was higher than in SKOV3 tumor tissues and non-CD117+CD44+CSCs. The CD117+CD44+-shHOTAIR showed an inhibited HOTAIR expression, reduced cell migration and invasion than CD117+CD44+- scramble, suggesting the inhibition of an epithelial-mesenchymal transition. Moreover, the downregulated HOTAIR expression in CD117+CD44+ CSCs significantly decreased the tumor growth and lung metastasis in xenograft mice. Conclusion Our findings demonstrated the shHOTAIR-mediated down-regulation of the HOTAIR expression in CD117+CD44+ CSCs can be a promising new opportunity for future clinical trials.
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Affiliation(s)
- Jing Wang
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009 China
| | - Dengyu Chen
- Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China.,Bengbu Medical School, Department of Microbiology, Bengbu, 233030 China
| | - Xiangfeng He
- Department of Medical Oncology, Affiliated Tumor Hospital of Nantong University, Nantong, 226361 China
| | - Yuxia Zhang
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009 China.,Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China
| | - Fangfang Shi
- Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China.,Department of Oncology, Zhongda Hospital, Southeast University, Nanjing, 210009 China
| | - Di Wu
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009 China.,Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China
| | - Junsong Chen
- Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China
| | - Ying Zhang
- Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China
| | - Fengsu Zhao
- Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China
| | - Jun Dou
- Department of Pathogenic Biology and Immunology of School of Medicine, Southeast University, Nanjing, 210009 China
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24
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Zhao F, He X, Wang Y, Shi F, Wu D, Pan M, Li M, Wu S, Wang X, Dou J. Decrease of ZEB1 expression inhibits the B16F10 cancer stem-like properties. Biosci Trends 2015; 9:325-34. [DOI: 10.5582/bst.2015.01106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Fengshu Zhao
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Xiangfeng He
- Department of Medical Oncology, Affiliated Tumor Hospital of Nantong University
| | - Yaqing Wang
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Fangfang Shi
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Di Wu
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Meng Pan
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Miao Li
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Songyan Wu
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Xiaoying Wang
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
| | - Jun Dou
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University
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25
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Vandamme N, Berx G. Melanoma cells revive an embryonic transcriptional network to dictate phenotypic heterogeneity. Front Oncol 2014; 4:352. [PMID: 25538895 PMCID: PMC4260490 DOI: 10.3389/fonc.2014.00352] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 11/25/2014] [Indexed: 01/23/2023] Open
Abstract
Compared to the overwhelming amount of literature describing how epithelial-to-mesenchymal transition (EMT)-inducing transcription factors orchestrate cellular plasticity in embryogenesis and epithelial cells, the functions of these factors in non-epithelial contexts, such as melanoma, are less clear. Melanoma is an aggressive tumor arising from melanocytes, endowed with unique features of cellular plasticity. The reversible phenotype-switching between differentiated and invasive phenotypes is increasingly appreciated as a mechanism accounting for heterogeneity in melanoma and is driven by oncogenic signaling and environmental cues. This phenotypic switch is coupled with an intriguing and somewhat counterintuitive signaling switch of EMT-inducing transcription factors. In contrast to carcinomas, different EMT-inducing transcription factors have antagonizing effects in melanoma. Balancing between these different EMT transcription factors is likely the key to successful metastatic spread of melanoma.
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Affiliation(s)
- Niels Vandamme
- Unit of Molecular and Cellular Oncology, Inflammation Research Center , VIB, Ghent , Belgium ; Department of Biomedical Molecular Biology, Ghent University , Ghent , Belgium
| | - Geert Berx
- Unit of Molecular and Cellular Oncology, Inflammation Research Center , VIB, Ghent , Belgium ; Department of Biomedical Molecular Biology, Ghent University , Ghent , Belgium
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26
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ZEB1 expression in endometrial biopsy predicts lymph node metastases in patient with endometrial cancer. DISEASE MARKERS 2014; 2014:680361. [PMID: 25544793 PMCID: PMC4269209 DOI: 10.1155/2014/680361] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 11/18/2014] [Accepted: 11/18/2014] [Indexed: 12/05/2022]
Abstract
Purpose. The purpose of this study was to analyze the expression of zinc-finger E-box-binding homeobox 1 (ZEB1) in endometrial biopsy and its correlation with preoperative characteristics, including lymph node metastases in patient with endometrial cancer. Methods. Using quantitative RT-PCR, ZEB1 expressions in endometrial biopsy from 452 patients were measured. The relationship between ZEB1 expression and preoperative characteristics was analyzed. Results. ZEB1 expressions were significantly associated with subtype, grade, myometrial invasion, and lymph node metastases. Lymph node metastases could be identified with a sensitivity of 57.8% at specificity of 74.1% by ZEB1 expression in endometrial biopsy. Based on combination of preoperative characteristics and ZEB1 expression, lymph node metastases could be identified with a sensitivity of 62.1% at specificity of 96.2% prior to hysterectomy. Conclusion. ZEB1 expression in endometrial biopsy could help physicians to better predict the lymph node metastasis in patients with endometrial cancer prior to hysterectomy.
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27
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Costa C, Abal M, López-López R, Muinelo-Romay L. Biosensors for the detection of circulating tumour cells. SENSORS 2014; 14:4856-75. [PMID: 24618729 PMCID: PMC4003971 DOI: 10.3390/s140304856] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 01/28/2014] [Accepted: 02/28/2014] [Indexed: 12/14/2022]
Abstract
Metastasis is the cause of most cancer deaths. Circulating tumour cells (CTCs) are cells released from the primary tumour into the bloodstream that are considered the main promoters of metastasis. Therefore, these cells are targets for understanding tumour biology and improving clinical management of the disease. Several techniques have emerged in recent years to isolate, detect, and characterise CTCs. As CTCs are a rare event, their study requires multidisciplinary considerations of both biological and physical properties. In addition, as isolation of viable cells may give further insights into metastatic development, cell recovery must be done with minimal cell damage. The ideal system for CTCs analysis must include maximum efficiency of detection in real time. In this sense, new approaches used to enrich CTCs from clinical samples have provided an important improvement in cell recovery. However, this progress should be accompanied by more efficient strategies of cell quantification. A range of biosensor platforms are being introduced into the technology for CTCs quantification with promising results. This review provides an update on recent progress in CTCs identification using different approaches based on sensor signaling.
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Affiliation(s)
- Clotilde Costa
- Translational Medical Oncology, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), Trav. Choupana s/n 15706 Santiago de Compostela, Spain.
| | - Miguel Abal
- Translational Medical Oncology, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), Trav. Choupana s/n 15706 Santiago de Compostela, Spain.
| | - Rafael López-López
- Translational Medical Oncology, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), Trav. Choupana s/n 15706 Santiago de Compostela, Spain.
| | - Laura Muinelo-Romay
- Unity of CTCs analysis Translational Medical Oncology, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS), Trav. Choupana s/n 15706 Santiago de Compostela, Spain.
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