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van Gisbergen MW, Offermans K, Voets AM, Lieuwes NG, Biemans R, Hoffmann RF, Dubois LJ, Lambin P. Mitochondrial Dysfunction Inhibits Hypoxia-Induced HIF-1α Stabilization and Expression of Its Downstream Targets. Front Oncol 2020; 10:770. [PMID: 32509579 PMCID: PMC7248342 DOI: 10.3389/fonc.2020.00770] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/21/2020] [Indexed: 12/13/2022] Open
Abstract
mtDNA variations often result in bioenergetic dysfunction inducing a metabolic switch toward glycolysis resulting in an unbalanced pH homeostasis. In hypoxic cells, expression of the tumor-associated carbonic anhydrase IX (CAIX) is enhanced to maintain cellular pH homeostasis. We hypothesized that cells with a dysfunctional oxidative phosphorylation machinery display elevated CAIX expression levels. Increased glycolysis was observed for cytoplasmic 143B mutant hybrid (m.3243A>G, >94.5%) cells (p < 0.05) and 143B mitochondrial DNA (mtDNA) depleted cells (p < 0.05). Upon hypoxia (0.2%, 16 h), genetic or pharmacological oxidative phosphorylation (OXPHOS) inhibition resulted in decreased CAIX (p < 0.05), vascular endothelial growth factor (VEGF) and hypoxia-inducible factor 1-alpha (HIF-1α) expression levels. Reactive oxygen species (ROS) and prolyl-hydroxylase 2 (PHD2) levels could not explain these observations. In vivo, tumor take (>500 mm3) took longer for mutant hybrid xenografts, but growth rates were comparable with control tumors upon establishment. Previously, it has been shown that HIF-1α is responsible for tumor establishment. In agreement, we found that HIF-1α expression levels and the pimonidazole-positive hypoxic fraction were reduced for the mutant hybrid xenografts. Our results demonstrate that OXPHOS dysfunction leads to a decreased HIF-1α stabilization and subsequently to a reduced expression of its downstream targets and hypoxic fraction in vivo. In contrast, hypoxia-inducible factor 2-alpha (HIF-2α) expression levels in these xenografts were enhanced. Inhibition of mitochondrial function is therefore an interesting approach to increase therapeutic efficacy in hypoxic tumors.
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Affiliation(s)
- Marike W van Gisbergen
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
| | - Kelly Offermans
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
| | - An M Voets
- Department of Clinical Genomics, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Natasja G Lieuwes
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
| | - Rianne Biemans
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
| | - Roland F Hoffmann
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Ludwig J Dubois
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
| | - Philippe Lambin
- The M-Lab, Department of Precision Medicine, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, Netherlands
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102
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Succinate Activates EMT in Intestinal Epithelial Cells through SUCNR1: A Novel Protagonist in Fistula Development. Cells 2020; 9:cells9051104. [PMID: 32365557 PMCID: PMC7290938 DOI: 10.3390/cells9051104] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/15/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
The pathogenesis of Crohn’s disease-associated fibrostenosis and fistulas imply the epithelial-to-mesenchymal transition (EMT) process. As succinate and its receptor (SUCNR1) are involved in intestinal inflammation and fibrosis, we investigated their relevance in EMT and Crohn’s disease (CD) fistulas. Succinate levels and SUCNR1-expression were analyzed in intestinal resections from non-Inflammatory Bowel Disease (non-IBD) subjects and CD patients with stenosing-B2 or penetrating-B3 complications and in a murine heterotopic-transplant model of intestinal fibrosis. EMT, as increased expression of Snail1, Snail2 and vimentin and reduction in E-cadherin, was analyzed in tissues and succinate-treated HT29 cells. The role played by SUCNR1 was studied by silencing its gene. Succinate levels and SUCNR1 expression are increased in B3-CD patients and correlate with EMT markers. SUCNR1 is detected in transitional cells lining the fistula tract and in surrounding mesenchymal cells. Grafts from wild type (WT) mice present increased succinate levels, SUCNR1 up-regulation and EMT activation, effects not observed in SUCNR1−/− tissues. SUCNR1 activation induces the expression of Wnt ligands, activates WNT signaling and induces a WNT-mediated EMT in HT29 cells. In conclusion, succinate and its receptor are up-regulated around CD-fistulas and activate Wnt signaling and EMT in intestinal epithelial cells. These results point to SUCNR1 as a novel pharmacological target for fistula prevention.
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103
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Tam SY, Wu VWC, Law HKW. Hypoxia-Induced Epithelial-Mesenchymal Transition in Cancers: HIF-1α and Beyond. Front Oncol 2020; 10:486. [PMID: 32322559 PMCID: PMC7156534 DOI: 10.3389/fonc.2020.00486] [Citation(s) in RCA: 200] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 03/18/2020] [Indexed: 01/10/2023] Open
Abstract
Metastasis is the main cause of cancer-related mortality. Although the actual process of metastasis remains largely elusive, epithelial-mesenchymal transition (EMT) has been considered as a major event in metastasis. Besides, hypoxia is common in solid cancers and has been considered as an important factor for adverse treatment outcomes including metastasis. Since EMT and hypoxia potentially share several signaling pathways, many recent studies focused on investigate the issue of hypoxia-induced EMT. Among all potential mediators of hypoxia-induced EMT, hypoxia-inducible factor-1α (HIF-1α) has been studied extensively. Moreover, there are other potential mediators that may also contribute to the process. This review aims to summarize the recent reports on hypoxia-induced EMT by HIF-1α or other potential mediators and provide insights for further investigations on this issue. Ultimately, better understanding of hypoxia-induced EMT may allow us to develop anti-metastatic strategies and improve treatment outcomes.
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Affiliation(s)
- Shing Yau Tam
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Vincent W C Wu
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Helen K W Law
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
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104
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MohanKumar K, Namachivayam K, Sivakumar N, Alves NG, Sidhaye V, Das JK, Chung Y, Breslin JW, Maheshwari A. Severe neonatal anemia increases intestinal permeability by disrupting epithelial adherens junctions. Am J Physiol Gastrointest Liver Physiol 2020; 318:G705-G716. [PMID: 32090604 PMCID: PMC7191465 DOI: 10.1152/ajpgi.00324.2019] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Anemia is a frequent diagnosis in critically ill infants, but the clinical implications of severe anemia in these patients remain unclear. In this study, we examined preweaned mice to investigate the effects of severe anemia during early infancy on gut mucosal permeability. C57BL/6 mice were subjected to timed phlebotomy between postnatal days (P) 2-10 to induce severe anemia (hematocrits 20%-24%), and intestinal permeability was tracked longitudinally between P10 and P20 as intestine-to-plasma translocation of enteral macromolecules and bacterial translocation. Epithelial junctions were evaluated by electron microscopy, polymerase chain reactions, immunohistochemistry, and/or enzyme immunoassays on intestinal tissues, Caco-2 intestinal epithelial-like cells, and colonic organoids. Preweaned mouse pups showed an age-related susceptibility to severe anemia, with increased intestinal permeability to enteral macromolecules (dextran, ovalbumin, β-lactoglobulin) and luminal bacteria. Electron micrographs showed increased paracellular permeability and ultrastructural abnormalities of the adherens junctions. These findings were explained by the loss of E-cadherin in epithelial cells, which was caused by destabilization of the E-cadherin (Cdh1) mRNA because of microRNA let-7e-5p binding to the 3'-untranslated region. Severe anemia resulted in a disproportionate and persistent increase in intestinal permeability in preweaned mice because of the disruption of epithelial adherens junctions. These changes are mediated via microRNA let-7e-mediated depletion of Cdh1 mRNA.NEW & NOTEWORTHY This research article shows that newborn infants with severe anemia show an age-related susceptibility to developing increased intestinal permeability to ingested macromolecules. This abnormal permeability develops because of abnormalities in intestinal epithelial junctions caused by a deficiency of the molecule E-cadherin in epithelial cells. The deficiency of E-cadherin is caused by destabilization of its mRNA precursor because of increased expression and binding of another molecule, the microRNA let-7e-5p, to the E-cadherin mRNA.
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Affiliation(s)
- Krishnan MohanKumar
- 1Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, Florida,2Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kopperuncholan Namachivayam
- 1Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, Florida,2Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Nithya Sivakumar
- 1Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Natascha G. Alves
- 3Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, Tampa, Florida
| | - Venkataramana Sidhaye
- 4Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jayanta K. Das
- 2Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Yerin Chung
- 2Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jerome W. Breslin
- 3Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, Tampa, Florida
| | - Akhil Maheshwari
- 1Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, Florida,2Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
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105
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Fu Y, Zhang Y, Cui J, Yang G, Peng S, Mi W, Yin X, Yu Y, Jiang J, Liu Q, Qin Y, Xu W. SNP rs12982687 affects binding capacity of lncRNA UCA1 with miR-873-5p: involvement in smoking-triggered colorectal cancer progression. Cell Commun Signal 2020; 18:37. [PMID: 32143722 PMCID: PMC7059387 DOI: 10.1186/s12964-020-0518-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/29/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND This investigation was arranged to elucidate whether single nucleotide polymorphisms (SNPs) of lncRNA UCA1 was implicated in elevating colorectal cancer (CRC) risk by interacting with environmental exposures. METHODS LncRNASNP database was firstly adopted to predict SNPs that possibly affected binding of UCA1 with miRNAs and then the interactive effect of SNPs and environmental exposure on CRC risk was evaluated by recurring to type 2 gene-environment interactions (GEI) model. Besides, MTT assay, colony formation assay, transwell assay and wound healing assay were performed to assess the activity of CRC cell lines which carried distinct genotypes of specific SNPs. The impact of nicotine on activity of CRC cells was also appraised. RESULTS SNP rs12982687 of UCA1 intervened in the binding capacity of UCA1 with several miRNAs, especially miR-873-5p. MiRNAs regulated by UCA1, as predicted by mirPath software, shared genes that were enriched in HIF1 signaling pathway. Moreover, homozygote TT of rs12982687 reduced CRC risk among smokers, and CRC cells that carried rs12982687 (CC) displayed strong migration and invasion. By contrast, miR-873-5p mimic, which reduced UCA1 expression, delayed metastasis of CRC cells (all P < 0.05). Additionally, nicotine not merely elevated UCA1 and HIF-1α expressions in CRC cells, but also facilitated proliferation and metastasis of CRC cells (P < 0.05). CONCLUSIONS SNP rs12982687 was involved in smoking-triggered CRC progression, given its influence on UCA1's binding with miR-873-5p and HIF-1 signaling.
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Affiliation(s)
- Yang Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Yizheng Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Jinyuan Cui
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Ge Yang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Sanfei Peng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Wunan Mi
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Xiangya Yin
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Yang Yu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Jianwu Jiang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Qi Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052 Henan Province China
| | - Yiyu Qin
- Research Centre of Biomedical Technology, Jiangsu Vocational College of Medicine, No. 283 Jianfang South Road, Yancheng City, Jiangsu Province, 224000 China
| | - Wen Xu
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237 China
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106
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Li L, Liu J, Xue H, Li C, Liu Q, Zhou Y, Wang T, Wang H, Qian H, Wen T. A TGF-β-MTA1-SOX4-EZH2 signaling axis drives epithelial-mesenchymal transition in tumor metastasis. Oncogene 2020; 39:2125-2139. [PMID: 31811272 DOI: 10.1038/s41388-019-1132-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023]
Abstract
MTA1, SOX4, EZH2, and TGF-β are all potent inducers of epithelial-mesenchymal transition (EMT) in cancer; however, the signaling relationship among these molecules in EMT is poorly understood. Here, we investigated the function of MTA1 in cancer cells and demonstrated that MTA1 overexpression efficiently activates EMT. This activation resulted in a significant increase in the migratory and invasive properties of three different cancer cell lines through a common mechanism involving SOX4 activation, screened from a gene expression profiling analysis. We showed that both SOX4 and MTA1 are induced by TGF-β and both are indispensable for TGF-β-mediated EMT. Further investigation identified that MTA1 acts upstream of SOX4 in the TGF-β pathway, emphasizing a TGF-β-MTA1-SOX4 signaling axis in EMT induction. The histone methyltransferase EZH2, a component of the polycomb (PcG) repressive complex 2 (PRC2), was identified as a critical responsive gene of the TGF-β-MTA1-SOX4 signaling in three different epithelial cancer cell lines, suggesting that this signaling acts broadly in cancer cells in vitro. The MTA1-SOX4-EZH2 signaling cascade was further verified in TCGA pan-cancer patient samples and in a colon cancer cDNA microarray, and activation of genes in this signaling pathway predicted an unfavorable prognosis in colon cancer patients. Collectively, our data uncover a SOX4-dependent EMT-inducing mechanism underlying MTA1-driven cancer metastasis and suggest a widespread TGF-β-MTA1-SOX4-EZH2 signaling axis that drives EMT in various cancers. We propose that this signaling may be used as a common therapeutic target to control epithelial cancer metastasis.
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Affiliation(s)
- Lina Li
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jian Liu
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
| | - Hongsheng Xue
- Department of Thoracic Surgery, the Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China
| | - Chunxiao Li
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Qun Liu
- Department of gynaecology and obstetrics, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Yantong Zhou
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ting Wang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Haijuan Wang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Haili Qian
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
| | - Tao Wen
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
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107
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LncRNA TMPO-AS1 up-regulates the expression of HIF-1α and promotes the malignant phenotypes of retinoblastoma cells via sponging miR-199a-5p. Pathol Res Pract 2020; 216:152853. [PMID: 32139259 DOI: 10.1016/j.prp.2020.152853] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/03/2020] [Accepted: 02/04/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND Long non-coding RNA (lncRNA) TMPO antisense RNA 1 (TMPO-AS1) is reported to be oncogenic in prostate cancer and lung cancer. This study aims to investigate the expression and biological function of it in retinoblastoma (RB), and explore its regulatory role for miR-199a-5p and hypoxia-inducible factor-1α (HIF-1α). METHODS Paired RB samples were collected, and the expression levels of TMPO-AS1, miR-199a-5p and HIF-1α were examined by quantitative real-time polymerase chain reaction (qRT-PCR); TMPO-AS1 overexpressing plasmids and TMPO-AS1 shRNA were transfected into HXO-RB44 and SO-Rb50 cell lines respectively, and then proliferation, migration and invasion of RB cells were detected by CCK-8 assay and Transwell method. qRT-PCR and western blot were used to analyze the regulatory function of TMPO-AS1 on miR-199a-5p and HIF-1α; luciferase reporter gene assay was used to determine the regulatory relationship between miR-199a-5p and TMPO-AS1. RESULTS TMPO-AS1 was significantly up-regulated in cancerous tissues of RB samples (relatively expression: 2.97 vs 3.93, p < 0.001), negatively correlated with miR-199a-5p (r=-0.4813, p < 0.01). There was one binding site on TMPO-AS1 for miR-199a-5p. After transfection of TMPO-AS1 shRNAs into RB cells, the proliferation, migration and invasion of cancer cells was significantly inhibited, while TMPO-AS1 had opposite effects; TMPO-AS1 was also demonstrated to regulate the expression of HIF-1α on both mRNA and protein levels via negatively regulating miR-199a-5p. CONCLUSION TMPO-AS1 is abnormally up-regulated in RB tissues, and it can modulate the proliferation and migration of RB cells. It has the potential to be the "ceRNA" to regulate HIF-1α expression by sponging miR-199a-5p.
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108
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Hypoxia Induces Growth Differentiation Factor 15 to Promote the Metastasis of Colorectal Cancer via PERK-eIF2 α Signaling. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5958272. [PMID: 32076610 PMCID: PMC7008299 DOI: 10.1155/2020/5958272] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/06/2019] [Accepted: 08/08/2019] [Indexed: 12/17/2022]
Abstract
Hypoxia plays an essential role in orchestrating Epithelial-mesenchymal transition and promoting metastasis of colorectal cancer. However, the underlying mechanisms are still not well elucidated. Here, we present that hypoxic exposure causes endoplasmic reticulum stress and activates the unfolded protein response pathways, which drives GDF15 expression in colorectal cancer cells. Mechanistically, upregulated CHOP led by activated PERK-eIF2α signaling promotes GDF15 transcription via directly binding to its promoter. Further study implicates that hypoxia-induced GDF15 is required for the EMT and invasion of colorectal cancer cells; enforced expression of GDF15 promotes the mitochondrial oxidation of fatty acids in colorectal cancer cells. Moreover, the abrogation of GDF15 results in smaller xenograft tumors in size and impaired metastasis. GDF15 is expressed much more in tumor tissues of CRC patients and displays positive correlations with CHOP and HIF1α in mRNA levels. Our study demonstrates a novel molecular mechanism underlying hypoxia-promoted metastasis of CRC and provides PERK signaling-regulated GDF15 as a new and promising therapeutic target for clinical treatment and drug discovery.
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109
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Abildgaard C, Do Canto LM, Steffensen KD, Rogatto SR. Long Non-coding RNAs Involved in Resistance to Chemotherapy in Ovarian Cancer. Front Oncol 2020; 9:1549. [PMID: 32039022 PMCID: PMC6985280 DOI: 10.3389/fonc.2019.01549] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 12/20/2019] [Indexed: 12/26/2022] Open
Abstract
Ovarian cancer (OC) accounts for more than 150,000 deaths worldwide every year. Patients are often diagnosed at an advanced stage with metastatic dissemination. Although platinum- and taxane-based chemotherapies are effective treatment options, they are rarely curative and eventually, the disease will progress due to acquired resistance. Emerging evidence suggests a crucial role of long non-coding RNAs (lncRNAs) in the response to therapy in OC. Transcriptome profiling studies using high throughput approaches have identified differential expression patterns of lncRNAs associated with disease recurrence. Furthermore, several aberrantly expressed lncRNAs in resistant OC cells have been related to increased cell division, improved DNA repair, up-regulation of drug transporters or reduced susceptibility to apoptotic stimuli, supporting their involvement in acquired resistance. In this review, we will discuss the key aspects of lncRNAs associated with the development of resistance to platinum- and taxane-based chemotherapy in OC. The molecular landscape of OC will be introduced, to provide a background for understanding the role of lncRNAs in the acquisition of malignant properties. We will focus on the interplay between lncRNAs and molecular pathways affecting drug response to evaluate their impact on treatment resistance. Additionally, we will discuss the prospects of using lncRNAs as biomarkers or targets for precision medicine in OC. Although there is still plenty to learn about lncRNAs and technical challenges to be solved, the evidence of their involvement in OC and the development of acquired resistance are compelling and warrant further investigation for clinical applications.
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Affiliation(s)
- Cecilie Abildgaard
- Department of Clinical Genetics, Lillebaelt Hospital-University Hospital of Southern Denmark, Vejle, Denmark.,Department of Clinical Oncology, Lillebaelt Hospital-University Hospital of Southern Denmark, Vejle, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Luisa M Do Canto
- Department of Clinical Genetics, Lillebaelt Hospital-University Hospital of Southern Denmark, Vejle, Denmark
| | - Karina D Steffensen
- Department of Clinical Oncology, Lillebaelt Hospital-University Hospital of Southern Denmark, Vejle, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Silvia R Rogatto
- Department of Clinical Genetics, Lillebaelt Hospital-University Hospital of Southern Denmark, Vejle, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
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110
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Denisenko TV, Gorbunova AS, Zhivotovsky B. Mitochondrial Involvement in Migration, Invasion and Metastasis. Front Cell Dev Biol 2019; 7:355. [PMID: 31921862 PMCID: PMC6932960 DOI: 10.3389/fcell.2019.00355] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/05/2019] [Indexed: 12/21/2022] Open
Abstract
Mitochondria in addition to be a main cellular power station, are involved in the regulation of many physiological processes, such as generation of reactive oxygen species, metabolite production and the maintenance of the intracellular Ca2+ homeostasis. Almost 100 years ago Otto Warburg presented evidence for the role of mitochondria in the development of cancer. During the past 20 years mitochondrial involvement in programmed cell death regulation has been clarified. Moreover, it has been shown that mitochondria may act as a switchboard between various cell death modalities. Recently, accumulated data have pointed to the role of mitochondria in the metastatic dissemination of cancer cells. Here we summarize the modern knowledge concerning the contribution of mitochondria to the invasion and dissemination of tumor cells and the possible mechanisms behind that and attempts to target metastatic cancers involving mitochondria.
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Affiliation(s)
| | - Anna S Gorbunova
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Boris Zhivotovsky
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia.,Institute of Environmental Medicine, Division of Toxicology, Karolinska Institute, Stockholm, Sweden
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111
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The Role of MicroRNAs upon Epithelial-to-Mesenchymal Transition in Inflammatory Bowel Disease. Cells 2019; 8:cells8111461. [PMID: 31752264 PMCID: PMC6912477 DOI: 10.3390/cells8111461] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/03/2019] [Accepted: 11/18/2019] [Indexed: 02/06/2023] Open
Abstract
Increasing evidence suggest the significance of inflammation in the progression of cancer, for example the development of colorectal cancer in Inflammatory Bowel Disease (IBD) patients. Long-lasting inflammation in the gastrointestinal tract causes serious systemic complications and breaks the homeostasis of the intestine, where the altered expression of regulatory genes and miRNAs trigger malignant transformations. Several steps lead from acute inflammation to malignancies: epithelial-to-mesenchymal transition (EMT) and inhibitory microRNAs (miRNAs) are known factors during multistage carcinogenesis and IBD pathogenesis. In this review, we outline the interactions between EMT components and miRNAs that may affect cancer development during IBD.
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112
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Susman S, Pîrlog R, Leucuța D, Mitre AO, Padurean VA, Melincovici C, Moldovan I, Crișan D, Florian SI. The role of p-Stat3 Y705 immunohistochemistry in glioblastoma prognosis. Diagn Pathol 2019; 14:124. [PMID: 31690341 PMCID: PMC6829927 DOI: 10.1186/s13000-019-0903-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 10/14/2019] [Indexed: 12/27/2022] Open
Abstract
Background In spite of the multimodal treatment used today, glioblastoma is still the most aggressive and lethal cerebral tumour. To increase survival in these patients, novel therapeutic targets must be discovered. Signal transducer and activator of transcription 3 (Stat3), a transcription factor that controls normal cell differentiation and survival is also involved in neoplastic celltransformation. In this study we evaluated the immunohistochemical expression of pY705-Stat3 in patients with primary glioblastoma and determined its prognostic role by correlating it with survival. Methods This retrospective study included 94 patients diagnosed with glioblastoma. We determined the localization, number of positive cells, and marker intensity for pY705-Stat3 in these patients with the use of immunohistochemistry. The prognostic role was determined by correlating pY705-Stat3 expression on formalin-fixed paraffin-embedded tumour tissues with the patient’s survival in univariate and multivariate COX regressions. Results We found a statistically significant difference in survival between the patients with more than 20% pY705-Stat3 positive cells and those with less than 20% pY705-Stat3 positive cells (8.9 months median survival versus 13.7 months medial survival, p < 0.001). On multivariate analyses with the COX proportional hazards regression model including pY705-Stat3 expression, age and relapse status, pY705-Stat3 status was an independent prognostic factor in glioblastoma (P < 0.001). Conclusion The results obtained show that the immunohistochemical expression of pY705-Stat3 correlates with survival in glioblastoma. This study identifies Stat3 as a possible target for existing or new developed Stat3 inhibitors.
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Affiliation(s)
- Sergiu Susman
- Department of Morphological Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, 6 Pasteur Street, 400349, Cluj-Napoca, Romania. .,Department of Pathology, Imogen Research Centre, Cluj-Napoca, Romania.
| | - Radu Pîrlog
- Department of Morphological Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, 6 Pasteur Street, 400349, Cluj-Napoca, Romania
| | - Daniel Leucuța
- Department of Medical Informatics and Biostatistics, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Andrei Otto Mitre
- Department of Neurosurgery, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | - Carmen Melincovici
- Department of Morphological Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, 6 Pasteur Street, 400349, Cluj-Napoca, Romania
| | - Ioana Moldovan
- Department of Morphological Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, 6 Pasteur Street, 400349, Cluj-Napoca, Romania
| | - Doinița Crișan
- Department of Morphological Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, 6 Pasteur Street, 400349, Cluj-Napoca, Romania.,Department of Pathology, Emergency County Hospital, Cluj-Napoca, Romania
| | - Stefan Ioan Florian
- Department of Neurosurgery, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Department of Neurosurgery, Emergency County Hospital, Cluj-Napoca, Romania
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Jin Y, Xie H, Duan L, Zhao D, Ding J, Jiang G. Long Non-Coding RNA CASC9 And HIF-1α Form A Positive Feedback Loop To Facilitate Cell Proliferation And Metastasis In Lung Cancer. Onco Targets Ther 2019; 12:9017-9027. [PMID: 31802910 PMCID: PMC6827505 DOI: 10.2147/ott.s226078] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/21/2019] [Indexed: 11/23/2022] Open
Abstract
Background The long noncoding RNA cancer susceptibility 9 (CASC9) has been recognized as an important modulator of cell growth and metastasis in many cancers. However, its detailed roles in lung cancer remain unclear. In this study, we aimed to investigate its functions and molecular mechanism in lung cancer progression. Methods Expression of CASC9 was determined in lung cancer tissues and cell lines by real-time PCR. CCK-8, colony formation, wound healing and transwell assays were done to evaluate the cell proliferation, migration and invasion capacities in vitro. Real-time PCR, Western blot and RNA immunoprecipitation (RIP) assays were performed to dissect the mechanisms. Results CASC9 was overexpressed in lung cancer specimens and cell lines. Knockdown of CASC9 inhibited cell proliferation, migration, invasion and EMT in lung cancer cells. While overexpression of CASC9 in normal lung epithelial cells did the opposite. CASC9 interacted with HIF-1α and enhanced its protein stability. They formed a positive feedback loop by reciprocally inducing each other expression and regulated cell proliferation and metastasis. Conclusion Our findings demonstrated a novel regulatory signaling pathway, namely the CASC9/HIF-1α axis, which was involved in lung cancer progression. These findings can provide valuable insights on the potential therapy application for lung cancer.
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Affiliation(s)
- Yuxing Jin
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Huikang Xie
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Liang Duan
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Deping Zhao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Jiaan Ding
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Gening Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
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Lysyl oxidases: linking structures and immunity in the tumor microenvironment. Cancer Immunol Immunother 2019; 69:223-235. [PMID: 31650200 PMCID: PMC7000489 DOI: 10.1007/s00262-019-02404-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 09/24/2019] [Indexed: 02/08/2023]
Abstract
The lysyl oxidases (LOXs) are a family of enzymes deputed to cross-link collagen and elastin, shaping the structure and strength of the extracellular matrix (ECM). However, many novel “non-canonical” functions, alternative substrates, and regulatory mechanisms have been described and are being continuously elucidated. The activity of LOXs, therefore, appears to be integrated into a complex network of signals regulating many cell functions, including survival/proliferation/differentiation. Among these signaling pathways, TGF-β and PI3K/Akt/mTOR, in particular, cross-talk extensively with each other and with LOXs also initiating complex feedback loops which modulate the activity of LOXs and direct the remodeling of the ECM. A growing body of evidence indicates that LOXs are not only important in the homeostasis of the normal structure of the ECM, but are also implicated in the establishment and maturation of the tumor microenvironment. LOXs’ association with advanced and metastatic cancer is well established; however, there is enough evidence to support a significant role of LOXs in the transformation of normal epithelial cells, in the accelerated tumor development and the induction of invasion of the premalignant epithelium. A better understanding of LOXs and their interactions with the different elements of the tumor immune microenvironment will prove invaluable in the design of novel anti-tumor strategies.
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Abstract
Complex disease such as cancer is often caused by genetic mutations that eventually alter the signal flow in the intra-cellular signaling network and result in different cell fate. Therefore, it is crucial to identify control targets that can most effectively block such unwanted signal flow. For this purpose, systems biological analysis provides a useful framework, but mathematical modeling of complicated signaling networks requires massive time-series measurements of signaling protein activity levels for accurate estimation of kinetic parameter values or regulatory logics. Here, we present a novel method, called SFC (Signal Flow Control), for identifying control targets without the information of kinetic parameter values or regulatory logics. Our method requires only the structural information of a signaling network and is based on the topological estimation of signal flow through the network. SFC will be particularly useful for a large-scale signaling network to which parameter estimation or inference of regulatory logics is no longer applicable in practice. The identified control targets have significant implication in drug development as they can be putative drug targets.
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Keren L, Bosse M, Thompson S, Risom T, Vijayaragavan K, McCaffrey E, Marquez D, Angoshtari R, Greenwald NF, Fienberg H, Wang J, Kambham N, Kirkwood D, Nolan G, Montine TJ, Galli SJ, West R, Bendall SC, Angelo M. MIBI-TOF: A multiplexed imaging platform relates cellular phenotypes and tissue structure. SCIENCE ADVANCES 2019; 5:eaax5851. [PMID: 31633026 PMCID: PMC6785247 DOI: 10.1126/sciadv.aax5851] [Citation(s) in RCA: 269] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 09/14/2019] [Indexed: 05/13/2023]
Abstract
Understanding tissue structure and function requires tools that quantify the expression of multiple proteins while preserving spatial information. Here, we describe MIBI-TOF (multiplexed ion beam imaging by time of flight), an instrument that uses bright ion sources and orthogonal time-of-flight mass spectrometry to image metal-tagged antibodies at subcellular resolution in clinical tissue sections. We demonstrate quantitative, full periodic table coverage across a five-log dynamic range, imaging 36 labeled antibodies simultaneously with histochemical stains and endogenous elements. We image fields of view up to 800 μm × 800 μm at resolutions down to 260 nm with sensitivities approaching single-molecule detection. We leverage these properties to interrogate intrapatient heterogeneity in tumor organization in triple-negative breast cancer, revealing regional variability in tumor cell phenotypes in contrast to a structured immune response. Given its versatility and sample back-compatibility, MIBI-TOF is positioned to leverage existing annotated, archival tissue cohorts to explore emerging questions in cancer, immunology, and neurobiology.
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Affiliation(s)
- Leeat Keren
- Department of Pathology, Stanford University, Stanford, CA
| | - Marc Bosse
- Department of Pathology, Stanford University, Stanford, CA
| | - Steve Thompson
- Department of Pathology, Stanford University, Stanford, CA
| | - Tyler Risom
- Department of Pathology, Stanford University, Stanford, CA
| | | | - Erin McCaffrey
- Department of Pathology, Stanford University, Stanford, CA
- Immunology Program, Stanford University School of Medicine, Stanford, CA
| | - Diana Marquez
- Department of Pathology, Stanford University, Stanford, CA
| | | | - Noah F. Greenwald
- Department of Pathology, Stanford University, Stanford, CA
- Cancer Biology Program, Stanford University School of Medicine, Stanford, CA
| | | | - Jennifer Wang
- Department of Pathology, Stanford University, Stanford, CA
| | | | - David Kirkwood
- Department of Pathology, Stanford University, Stanford, CA
| | - Garry Nolan
- Department of Microbiology and Immunology, Stanford University, Stanford, CA
| | | | | | - Robert West
- Department of Pathology, Stanford University, Stanford, CA
| | | | - Michael Angelo
- Department of Pathology, Stanford University, Stanford, CA
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Li Y, Huang T, Fu Y, Wang T, Zhao T, Guo S, Sun Y, Yang Y, Li C. Antitumor activity of a novel dual functional podophyllotoxin derivative involved PI3K/AKT/mTOR pathway. PLoS One 2019; 14:e0215886. [PMID: 31557166 PMCID: PMC6763125 DOI: 10.1371/journal.pone.0215886] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/21/2019] [Indexed: 12/26/2022] Open
Abstract
The progression of cancer through local expansion and metastasis is well recognized, but preventing these characteristic cancer processes is challenging. To this end, a new strategy is required. In this study, we presented a novel dual functional podophyllotoxin derivative, 2-pyridinealdehyde hydrazone dithiocarbamate S-propionate podophyllotoxin ester (PtoxPdp), which inhibited both matrix metalloproteinases and Topoisomerase II. This new podophyllotoxin derivative exhibited significant anti-proliferative, anti-metastatic that correlated with the downregulation of matrix metalloproteinase. In a xenograft animal local expansion model, PtoxPdp was superior to etoposide in tumor repression. A preliminary mechanistic study revealed that PtoxPdp induced apoptosis and autophagy via the PI3K/AKT/mTOR pathway. Furthermore, PtoxPdp could also inhibit epithelial-mesenchymal transition, which was achieved by downregulating both PI3K/AKT/mTOR and NF-κB/Snail pathways. Taken together, our results reveal that PtoxPdp is a promising antitumor drug candidate.
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Affiliation(s)
- Yongli Li
- College of Basic Medical Science, Sanquan College of Xinxiang Medical University, Xinxiang, Henan, P. R. China
- * E-mail: (CL); (YL)
| | - Tengfei Huang
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Yun Fu
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Tingting Wang
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Tiesuo Zhao
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Sheng Guo
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Yanjie Sun
- Experimental Teaching Center of Biology and Basic Medicine, Sanquan College of Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Yun Yang
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
| | - Changzheng Li
- College of Basic Medical Science, Xinxiang Medical University, Xinxiang, Henan, P. R. China
- Experimental Teaching Center of Biology and Basic Medicine, Sanquan College of Xinxiang Medical University, Xinxiang, Henan, P. R. China
- * E-mail: (CL); (YL)
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Altemus MA, Goo LE, Little AC, Yates JA, Cheriyan HG, Wu ZF, Merajver SD. Breast cancers utilize hypoxic glycogen stores via PYGB, the brain isoform of glycogen phosphorylase, to promote metastatic phenotypes. PLoS One 2019; 14:e0220973. [PMID: 31536495 PMCID: PMC6752868 DOI: 10.1371/journal.pone.0220973] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 07/26/2019] [Indexed: 01/01/2023] Open
Abstract
In breast cancer, tumor hypoxia has been linked to poor prognosis and increased metastasis. Hypoxia activates transcriptional programs in cancer cells that lead to increased motility and invasion, as well as various metabolic changes. One of these metabolic changes, an increase in glycogen metabolism, has been further associated with protection from reactive oxygen species damage that may lead to premature senescence. Here we report that breast cancer cells significantly increase glycogen stores in response to hypoxia. We found that knockdown of the brain isoform of an enzyme that catalyzes glycogen breakdown, glycogen phosphorylase B (PYGB), but not the liver isoform, PYGL, inhibited glycogen utilization in estrogen receptor negative and positive breast cancer cells; whereas both independently inhibited glycogen utilization in the normal-like breast epithelial cell line MCF-10A. Functionally, PYGB knockdown and the resulting inhibition of glycogen utilization resulted in significantly decreased wound-healing capability in MCF-7 cells and a decrease in invasive potential of MDA-MB-231 cells. Thus, we identify PYGB as a novel metabolic target with potential applications in the management and/or prevention of metastasis in breast cancer.
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Affiliation(s)
- Megan A. Altemus
- Graduate Program in Cancer Biology, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Laura E. Goo
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Andrew C. Little
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Joel A. Yates
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Hannah G. Cheriyan
- Graduate Program in Cancer Biology, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Zhi Fen Wu
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Sofia D. Merajver
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
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Metabolic Plasticity and Epithelial-Mesenchymal Transition. J Clin Med 2019; 8:jcm8070967. [PMID: 31277295 PMCID: PMC6678349 DOI: 10.3390/jcm8070967] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 01/13/2023] Open
Abstract
A major transcriptional and phenotypic reprogramming event during development is the establishment of the mesodermal layer from the ectoderm through epithelial-mesenchymal transition (EMT). EMT is employed in subsequent developmental events, and also in many physiological and pathological processes, such as the dissemination of cancer cells through metastasis, as a reversible transition between epithelial and mesenchymal states. The remarkable phenotypic remodeling accompanying these transitions is driven by characteristic transcription factors whose activities and/or activation depend upon signaling cues and co-factors, including intermediary metabolites. In this review, we summarize salient metabolic features that enable or instigate these transitions, as well as adaptations undergone by cells to meet the metabolic requirements of their new states, with an emphasis on the roles played by the metabolic regulation of epigenetic modifications, notably methylation and acetylation.
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Chen XJ, Deng YR, Wang ZC, Wei WF, Zhou CF, Zhang YM, Yan RM, Liang LJ, Zhong M, Liang L, Wu S, Wang W. Hypoxia-induced ZEB1 promotes cervical cancer progression via CCL8-dependent tumour-associated macrophage recruitment. Cell Death Dis 2019; 10:508. [PMID: 31263103 PMCID: PMC6602971 DOI: 10.1038/s41419-019-1748-1] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/10/2019] [Accepted: 06/13/2019] [Indexed: 02/08/2023]
Abstract
The accumulation of tumour-associated macrophages (TAMs) in the hypoxic tumour microenvironment (TME) is associated with malignant progression in cancer. However, the mechanisms by which the hypoxic TME facilitates TAM infiltration are not fully understood. This study showed that high ZEB1 expression in hypoxic cervical cancer cell islets was positively correlated with CD163+ TAM accumulation. ZEB1 in hypoxic cancer cells promoted the migration of TAMs in vitro and altered the expression of multiple chemokines, especially CCL8. Mechanistically, hypoxia-induced ZEB1 activated the transcription of CCL8, which attracted macrophages via the CCR2-NF-κB pathway. Furthermore, ZEB1 and CCL8 were independent prognostic factors in cervical cancer patients based on The Cancer Genome Atlas (TCGA) data analysis. In conclusion, hypoxia-induced ZEB1 exerts unexpected functions in cancer progression by fostering a prometastatic environment through increased CCL8 secretion and TAM recruitment; thus, ZEB1 may serve as a candidate biomarker of tumour progression and provide a potential target for disrupting hypoxia-mediated TME remodelling.
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Affiliation(s)
- Xiao-Jing Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Yuan-Run Deng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, 510360, Guangzhou, China
| | - Zi-Ci Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Wen-Fei Wei
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Chen-Fei Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China
| | - Yan-Mei Zhang
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomic, 510515, Guangzhou, China
| | - Rui-Ming Yan
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Luo-Jiao Liang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Li Liang
- Department of Pathology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China
| | - Sha Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomic, 510515, Guangzhou, China.
- 1838 Guangzhou Avenue North, Baiyun District, 510515, Guangzhou, China.
| | - Wei Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, China.
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, 510120, Guangzhou, China.
- 151 Yanjiang Road, Yuexiu District, 510120, Guangzhou, China.
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Jia D, Li X, Bocci F, Tripathi S, Deng Y, Jolly MK, Onuchic JN, Levine H. Quantifying Cancer Epithelial-Mesenchymal Plasticity and its Association with Stemness and Immune Response. J Clin Med 2019; 8:E725. [PMID: 31121840 PMCID: PMC6572429 DOI: 10.3390/jcm8050725] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/14/2019] [Accepted: 05/20/2019] [Indexed: 12/19/2022] Open
Abstract
Cancer cells can acquire a spectrum of stable hybrid epithelial/mesenchymal (E/M) states during epithelial-mesenchymal transition (EMT). Cells in these hybrid E/M phenotypes often combine epithelial and mesenchymal features and tend to migrate collectively commonly as small clusters. Such collectively migrating cancer cells play a pivotal role in seeding metastases and their presence in cancer patients indicates an adverse prognostic factor. Moreover, cancer cells in hybrid E/M phenotypes tend to be more associated with stemness which endows them with tumor-initiation ability and therapy resistance. Most recently, cells undergoing EMT have been shown to promote immune suppression for better survival. A systematic understanding of the emergence of hybrid E/M phenotypes and the connection of EMT with stemness and immune suppression would contribute to more effective therapeutic strategies. In this review, we first discuss recent efforts combining theoretical and experimental approaches to elucidate mechanisms underlying EMT multi-stability (i.e., the existence of multiple stable phenotypes during EMT) and the properties of hybrid E/M phenotypes. Following we discuss non-cell-autonomous regulation of EMT by cell cooperation and extracellular matrix. Afterwards, we discuss various metrics that can be used to quantify EMT spectrum. We further describe possible mechanisms underlying the formation of clusters of circulating tumor cells. Last but not least, we summarize recent systems biology analysis of the role of EMT in the acquisition of stemness and immune suppression.
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Affiliation(s)
- Dongya Jia
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA.
| | - Xuefei Li
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA.
| | - Federico Bocci
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA.
- Department of Chemistry, Rice University, Houston, TX 77005, USA.
| | - Shubham Tripathi
- PhD Program in Systems, Synthetic, and Physical Biology, Rice University, Houston, TX 77005, USA.
| | - Youyuan Deng
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA.
- Applied Physics Graduate Program, Rice University, Houston, TX 77005, USA.
| | - Mohit Kumar Jolly
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India.
| | - José N Onuchic
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA.
- Department of Chemistry, Rice University, Houston, TX 77005, USA.
- Department of Biosciences, Rice University, Houston, TX 77005, USA.
- Department of Physics and Astronomy, Rice University, Houston, TX 77005, USA.
| | - Herbert Levine
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77005, USA.
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA.
- Department of Physics, Northeastern University, Boston, MA 02115, USA.
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Liu J, Ni X, Li Y, Chen M, Chen W, Wu Y, Chen B, Wu Y, Xu M. Downregulation of IQGAP1 inhibits epithelial-mesenchymal transition via the HIF1α/VEGF-A signaling pathway in gastric cancer. J Cell Biochem 2019; 120:15790-15799. [PMID: 31090961 DOI: 10.1002/jcb.28849] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/07/2019] [Accepted: 02/14/2019] [Indexed: 12/24/2022]
Abstract
As an oncogene, IQ-domain GTPase-activating protein 1 (IQGAP1) regulates the epithelial-mesenchymal transition (EMT) of several cancers, such as breast cancer, thyroid cancer, and esophageal squamous cell carcinoma. However, the role of the scaffold protein IQGAP1 on EMT in gastric cancer remains unclear. Therefore, the present work was performed to address the question. Our results showed that IQGAP1 expression is upregulated in human gastric cancer specimens and cell lines. Furthermore, IQGAP1 knockdown inhibited the migratory ability of gastric cancer cells and reduced the expression of mesenchymal phenotype markers, including Slug, β-catenin, Snail, Vimentin, and N-cadherin, as well as vascular endothelial growth factor-A (VEGF-A) secretion in gastric cancer cells. Conversely, IQGAP1 downregulation increased the epithelial phenotype marker E-cadherin. Furthermore, IQGAP1 silencing not only downregulated hypoxia-inducible transcription factor 1α (HIF1α) but also limited its translocation from the cytosol to the nucleus. Collectively, our results indicated that EMT was regulated by IQGAP1, which was associated with VEGF-A, since other data demonstrated that HIF1α was involved in VEGF-A expression. Therefore, we speculated that IQGAP1 regulated EMT of gastric cancer partially via the HIF1α/VEGF-A signaling pathway. IQGAP1 may serve as an effective therapeutic biomarker for gastric cancer.
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Affiliation(s)
- Junqiang Liu
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Xiufan Ni
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Yafang Li
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Mengjiao Chen
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Wei Chen
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Ying Wu
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Baoding Chen
- Department of Ultrasound, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Yan Wu
- Department of Physiology, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Min Xu
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
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Patra K, Jana S, Sarkar A, Mandal DP, Bhattacharjee S. The inhibition of hypoxia-induced angiogenesis and metastasis by cinnamaldehyde is mediated by decreasing HIF-1α protein synthesis via PI3K/Akt pathway. Biofactors 2019; 45:401-415. [PMID: 30854715 DOI: 10.1002/biof.1499] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/06/2019] [Accepted: 02/06/2019] [Indexed: 11/06/2022]
Abstract
Tumor hypoxia is positively correlated with tumor aggressiveness and hence is a negative prognostic factor in cancer. As normal cells usually do not experience such low oxygen levels, hypoxic cell signaling has attracted significant attention for the development of tumor-selective treatment strategies. In response to hypoxia, the master transcriptional regulator, HIF-1α plays central role in cellular adaptation by transactivating several crucial downstream target genes, which are involved in angiogenesis, metastasis, and EMT. In this study, we investigated the effect of cinnamaldehyde (CA), the main active ingredient of Cinnamon cassia bark extract, on hypoxia-induced angiogenesis and metastasis. The study in vitro comprised two cell lines, viz, sarcoma 180 and B16F10 melanoma, which were further confirmed in their respective transplantable in vivo models. Results show that CA administration inhibited tumor angiogenesis, EMT, and metastasis. At the molecular level, this was accompanied by a reduction in VEGF secretion, VEGF receptor (FLK) phosphorylation, matrix metalloproteinase (MMP) expression, and activity as well as a reduction in the EMT-related factors TWIST and ZEB1. Next, we focused our study particularly on the modulation of HIF-1 α by CA, which revealed that CA decreased HIF-1 α protein level by inhibiting its synthesis without affecting its proteasomal degradation. Furthermore, the PI3/Akt/mTOR pathway, which plays an important role in HIF-1α transcription and translation, was also inhibited by CA both in vitro and in vivo. Thus, it can be concluded that CA decreased angiogenesis and metastasis in tumor cells by inhibiting HIF-1α protein accumulation probably by targeting the PI3/Akt/mTOR pathway. © 2019 BioFactors, 45(3):401-415, 2019.
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Affiliation(s)
- Kartick Patra
- Department of Zoology, West Bengal State University, Kolkata, West Bengal, India
| | - Samarjit Jana
- Department of Zoology, West Bengal State University, Kolkata, West Bengal, India
| | - Arnab Sarkar
- Department of Zoology, West Bengal State University, Kolkata, West Bengal, India
| | - Deba P Mandal
- Department of Zoology, West Bengal State University, Kolkata, West Bengal, India
| | - Shamee Bhattacharjee
- Department of Zoology, West Bengal State University, Kolkata, West Bengal, India
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Delbrel E, Uzunhan Y, Soumare A, Gille T, Marchant D, Planès C, Boncoeur E. ER Stress is Involved in Epithelial-To-Mesenchymal Transition of Alveolar Epithelial Cells Exposed to a Hypoxic Microenvironment. Int J Mol Sci 2019; 20:ijms20061299. [PMID: 30875855 PMCID: PMC6470993 DOI: 10.3390/ijms20061299] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/01/2019] [Accepted: 03/07/2019] [Indexed: 12/27/2022] Open
Abstract
Background: Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive and fatal interstitial lung disease of unknown origin. Alveolar epithelial cells (AECs) play an important role in the fibrotic process as they undergo sustained endoplasmic reticulum (ER) stress, and may acquire a mesenchymal phenotype through epithelial-to-mesenchymal transition (EMT), two phenomena that could be induced by localized alveolar hypoxia. Here we investigated the potential links between hypoxia, ER stress and EMT in AECs. Methods: ER stress and EMT markers were assessed by immunohistochemistry, western blot and qPCR analysis, both in vivo in rat lungs exposed to normoxia or hypoxia (equivalent to 8% O2) for 48 h, and in vitro in primary rat AECs exposed to normoxia or hypoxia (1.5% O2) for 2–6 days. Results: Hypoxia induced expression of mesenchymal markers, pro-EMT transcription factors, and the activation of ER stress markers both in vivo in rat lungs, and in vitro in AECs. In vitro, pharmacological inhibition of ER stress by 4-PBA limited hypoxia-induced EMT. Calcium chelation or hypoxia-inducible factor (HIF) inhibition also prevented EMT induction under hypoxic condition. Conclusions: Hypoxia and intracellular calcium are both involved in EMT induction of AECs, mainly through the activation of ER stress and HIF signaling pathways.
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Affiliation(s)
- Eva Delbrel
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
| | - Yurdagül Uzunhan
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
- Assistance Publique Hôpitaux de Paris (APHP), Hôpital Avicenne, F-93017 Bobigny, France.
| | - Abdoulaye Soumare
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
| | - Thomas Gille
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
- Assistance Publique Hôpitaux de Paris (APHP), Hôpital Avicenne, F-93017 Bobigny, France.
| | - Dominique Marchant
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
| | - Carole Planès
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
- Assistance Publique Hôpitaux de Paris (APHP), Hôpital Avicenne, F-93017 Bobigny, France.
| | - Emilie Boncoeur
- Université Paris 13, Sorbonne Paris Cité, Laboratoire 'Hypoxie & Poumon' (Inserm U1272), F-93017 Bobigny, France.
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Tan Y, Du B, Zhan Y, Wang K, Wang X, Chen B, Wei X, Xiao J. Antitumor effects of circ-EPHB4 in hepatocellular carcinoma via inhibition of HIF-1α. Mol Carcinog 2019; 58:875-886. [PMID: 30644610 DOI: 10.1002/mc.22976] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 12/14/2022]
Abstract
The protein EPHB4 plays a vital role in various tumor types. However, few studies into the function of circ-EPHB4 (hsa_circ_0001730) in tumors have been conducted. This study aimed to investigate the functions of circ-EPHB4 and the underlying mechanism of circ-EPHB4 in regulating hepatocellular carcinoma (HCC). The expression of circ-EPHB4 was found to be downregulated in HCC tumor tissues, whereas circ-EPHB4 overexpression suppressed cell viability, induced apoptosis, and inhibited cell migration and invasion in Huh7 and HepG2 cells. circ-EPHB4 levels were negatively correlated with tumor weight, size, and metastasis foci in nude mouse models, suggesting circ-EPHB4 inhibits tumorigenesis, tumor development, and metastasis. In addition, HIF-1α and PI3K-AKT pathways were markedly affected by circ-EPHB4 overexpression. HIF-1α could potentially be the target of circ-EPHB4. By overexpressing both HIF-1α and circ-EPHB4, the antitumor effect of circ-EPHB4 should be most probably correlated with HIF-1α. In conclusion, circ-EPHB4 is a tumor inhibitor in HCC and functions by inhibiting HIF-1α expression.
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Affiliation(s)
- Yuhui Tan
- Department of Biochemistry, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Biaoyan Du
- Department of Pathology, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yujuan Zhan
- Department of Biochemistry, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kun Wang
- Department of Pathology, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaolan Wang
- Department of Biochemistry, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bonan Chen
- Department of Biochemistry, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xianli Wei
- Department of Medical Instruments, Guangdong Food and Drug Vocational College, Guangzhou, Guangdong, China
| | - Jianyong Xiao
- Department of Biochemistry, Guangzhou University of Chinese Medicine, Guangzhou, China
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Kobayashi M, Saito R, Miki Y, Nanamiya R, Inoue C, Abe J, Sato I, Okada Y, Sasano H. The correlation of p22 phox and chemosensitivity in EGFR-TKI resistant lung adenocarcinoma. Oncotarget 2019; 10:1119-1131. [PMID: 30800222 PMCID: PMC6383684 DOI: 10.18632/oncotarget.26637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 01/12/2019] [Indexed: 12/22/2022] Open
Abstract
Background Enhancing the chemosensitivity in the patients with epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) resistant lung adenocarcinoma (LUAD) is pivotal in achieving their successful therapeutic outcome. We aimed to explore the mechanisms regarding the development of therapeutic resistance to chemotherapy in EGFR-TKI resistant LUAD. Methods: Microarray analysis lead to potential involvement of p22phox, which was abundantly expressed in the cell lines harboring EGFR-TKI resistance and chemoresistance, and was known to regulate several important chemoresistance-associated factors such as hypoxia inducible factor-1α (HIF-1α) and epithelial-mesenchymal transition (EMT). We compared the status of p22phox with that of chemoresistance, HIF-1α expression and EMT in LUAD cell lines. We immunolocalized p22phox in the specimens of lung cancer patients. Results p22phox and HIF-1α mRNAs were significantly elevated in the cells harboring EMT and chemoresistance. p22phox knockdown enhanced chemosensitivity and reduced the expression of HIF-1α and EMT-associated factors. HIF-1α knockdown enhanced the chemosensitivity, while HIF-1α transfection induced EMT and chemoresistance in these cell lines. All LUAD patients with T790M mutation were associated with abundant p22phox immunoreactivity in carcinoma cells. Conclusions The analysis of p22phox in lung carcinoma tissues could provide new insights into the selection of chemotherapy for the patients with EGFR-TKI resistant LUAD.
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Affiliation(s)
- Masayuki Kobayashi
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Ryoko Saito
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Yasuhiro Miki
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Ren Nanamiya
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Chihiro Inoue
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Jiro Abe
- Department of Thoracic Surgery, Miyagi Cancer Center, Miyagi, Japan
| | - Ikuro Sato
- Department of Pathology, Miyagi Cancer Center, Miyagi, Japan
| | - Yoshinori Okada
- Department of Thoracic Surgery, Tohoku University Hospital, Miyagi, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Miyagi, Japan
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Lo MC, Chen MH, Hsueh YT, Kuo YT, Lee HM. Alpha-lipoic acid suppresses N ε-(carboxymethyl) lysine-induced epithelial mesenchymal transition in HK-2 human renal proximal tubule cells. Free Radic Res 2019; 52:1387-1397. [PMID: 30693839 DOI: 10.1080/10715762.2018.1489129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Nε-(carboxymethyl) lysine (CML) plays causal roles in diabetic complications. In the present study, we investigated whether CML-induced HIF-1α accumulation and epithelial-mesenchymal transition (EMT) in HK-2 renal proximal tubular epithelial cells. Treatment with CML-BSA increased reactive oxygen species (ROS) production reduced the mitochondrial membrane potential and induced mitochondrial fragmentation. Pre-treatment of cells with antioxidant, α-lipoic acid, normalised the ROS production and restored the mitochondrial membrane potential. These changes were accompanied with morphological changes of epithelial mesenchymal transition. CML-BSA increased the protein level of hypoxia-inducible factor-1α (HIF-1α), and the EMT-associated transcription factor, TWIST. These effects were reversed by α-lipoic acid. CML-BSA increased the protein levels of mesenchymal-specific markers, including vimentin, α-smooth muscle actin, which were alleviated by pre-treatment with α-lipoic acid. Our data suggest that CML-BSA induces EMT through a ROS/HIF-1α/TWIST-dependent mechanism, and that α-lipoic acid may alleviate the CML-induced EMT in renal tubular cells.
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Affiliation(s)
- Mei-Chen Lo
- a Department of Pediatrics , Shuang Ho Hospital, Taipei Medical University , Taipei , Taiwan
| | - Ming-Hong Chen
- b Department of Pathology , Saint Paul's Hospital , Tao-Yuan , Taiwan
| | - Yu-Ting Hsueh
- c Department of Medical Laboratory Sciences and Biotechnology, College of Medical Sciences and Technology , Taipei Medical University , Taipei , Taiwan
| | - Yung-Ting Kuo
- a Department of Pediatrics , Shuang Ho Hospital, Taipei Medical University , Taipei , Taiwan.,d Department of Pediatrics, School of Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan
| | - Horng-Mo Lee
- c Department of Medical Laboratory Sciences and Biotechnology, College of Medical Sciences and Technology , Taipei Medical University , Taipei , Taiwan.,e Ph.D. Program in Medical Biotechnology, College of Medical Sciences and Technology , Taipei Medical University , Taipei , Taiwan
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Yang Z, Yu W, Huang R, Ye M, Min Z. SIRT6/HIF-1α axis promotes papillary thyroid cancer progression by inducing epithelial-mesenchymal transition. Cancer Cell Int 2019; 19:17. [PMID: 30675128 PMCID: PMC6335740 DOI: 10.1186/s12935-019-0730-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 01/06/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND In our previous study, we demonstrated that Sirtuin 6 (SIRT6) is upregulated and associated with papillary thyroid cancer (PTC) progression (Qu et al. in Int J Oncol 50(5):1683-92, 2017). This study examined whether SIRT6 promotes epithelial-mesenchymal transition (EMT) of papillary thyroid cancer through hypoxia inducible factor-1α (HIF-1α). METHODS SIRT6-upregulated TPC-1 and B-CPAP cells were generated by lentivirus. Western blotting, RT-qPCR, immunofluorescence was performed to detect the following EMT associated markers: E-cadherin, Vimentin, Snail, and TWIST. Cell proliferation was detected by CCK8, and cell invasion and migration were detected by transwell and wound healing assays, respectively. HIF-1α expression was further detected by western blotting in both normoxia and hypoxia conditions. A HIF-1α inhibitor was then used to block HIF-1α expression in SIRT6-upregulated PTC cells. The same parameters were then assessed and compared with control HIF-1α cells. RESULTS E-cadherin was significantly decreased, whereas Vimentin, Snail, and TWIST were increased in SIRT6-upregulated PTC cells. Additionally, SIRT6 promoted the invasion and migration of PTC cells. We found that SIRT6 enhanced HIF-1α stability and synthesis and prolonged the protein half-life. The changes in the EMT associated markers and in the invasion and migration ability were rescued after inhibition of HIF-1α expression. Furthermore, we found that SIRT6 increased PTC resistance to HIF-1α inhibitor-mediated proliferation changes. CONCLUSION These results confirm that the SIRT6/HIF-1α axis promotes papillary thyroid cancer progression by inducing EMT.
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Affiliation(s)
- Zhou Yang
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Huinan Town, Pudong, Shanghai, 201399 China
| | - Weiping Yu
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Huinan Town, Pudong, Shanghai, 201399 China
| | - Renhong Huang
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Huinan Town, Pudong, Shanghai, 201399 China
| | - Min Ye
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Huinan Town, Pudong, Shanghai, 201399 China
| | - Zhijun Min
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Huinan Town, Pudong, Shanghai, 201399 China
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Wang RX, Ou XW, Kang MF, Zhou ZP. Association of HIF-1α and NDRG2 Expression with EMT in Gastric Cancer Tissues. Open Life Sci 2019; 14:217-223. [PMID: 33817155 PMCID: PMC7874826 DOI: 10.1515/biol-2019-0025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 01/19/2018] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE This study aims to investigate the differences in the expression of hypoxia-inducible factor-1α (HIF-1α), N-myc downstream-regulated gene 2 (NDRG2) and epithelial mesenchymal transition (EMT)-related proteins in normal gastric tissues, gastric cancer tissues and lymph node metastasis. METHODS Immunohistochemistry was used to detect the expression of HIF-1α, NDRG2, E-cadherin, Snail and Twist in normal gastric tissues, gastric cancer tissues and lymph node metastasis. RESULTS In normal gastric tissues, HIF-1α was not expressed, NDRG2 was highly expressed. There was a significant between the expression of NDRG2 and Snail, as well as of NDRG2 and Twist. In gastric cancer tissues, there was no statistically difference between the expression of HIF-1α and E-cadherin, NDRG2 and E-cadherin. However, there was a significant difference in expression between the expression of HIF-1α and Snail, HIF-1α and Twist, NDRG2 and Snail, and NDRG2 and Twist. In lymph node metastasis tissues, we show that HIF-1α was highly expressed, while NDRG2 was not, and the difference between the expression of HIF-1α and E-cadherin, HIF-1α and Snail, HIF-1α and Twist was not significant. CONCLUSION HIF-1α may promote EMT, possibly by inhibiting the expression of NDRG2.
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Affiliation(s)
- Ren-Xiang Wang
- Clinical medical school of Guilin Medical College, Guilin, Guangxi, 541001, China
| | - Xia-Wan Ou
- Clinical medical school of Guilin Medical College, Guilin, Guangxi, 541001, China
| | - Ma-Fei Kang
- Department of Medical Oncology, The Affiliated Hospital of Guilin Medical College, Guilin, Guangxi, 541001, China
| | - Zu-Ping Zhou
- Guangxi Normal University, College of Life Science; Stem Cells and Medical Biological Technology Key Laboratory of Guangxi Colleges and Universities, Guilin, Guangxi, 541004, China
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Oncogenic Metabolism Acts as a Prerequisite Step for Induction of Cancer Metastasis and Cancer Stem Cell Phenotype. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1027453. [PMID: 30671168 PMCID: PMC6323533 DOI: 10.1155/2018/1027453] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/28/2018] [Indexed: 02/07/2023]
Abstract
Metastasis is a major obstacle to the efficient and successful treatment of cancer. Initiation of metastasis requires epithelial-mesenchymal transition (EMT) that is regulated by several transcription factors, including Snail and ZEB1/2. EMT is closely linked to the acquisition of cancer stem cell (CSC) properties and chemoresistance, which contribute to tumor malignancy. Tumor suppressor p53 inhibits EMT and metastasis by negatively regulating several EMT-inducing transcription factors and regulatory molecules; thus, its inhibition is crucial in EMT, invasion, metastasis, and stemness. Metabolic alterations are another hallmark of cancer. Most cancer cells are more dependent on glycolysis than on mitochondrial oxidative phosphorylation for their energy production, even in the presence of oxygen. Cancer cells enhance other oncogenic metabolic pathways, such as glutamine metabolism, pentose phosphate pathway, and the synthesis of fatty acids and cholesterol. Metabolic reprogramming in cancer is regulated by the activation of oncogenes or loss of tumor suppressors that contribute to tumor progression. Oncogenic metabolism has been recently linked closely with the induction of EMT or CSC phenotypes by the induction of several metabolic enzyme genes. In addition, several transcription factors and molecules involved in EMT or CSCs, including Snail, Dlx-2, HIF-1α, STAT3, TGF-β, Wnt, and Akt, regulate oncogenic metabolism. Moreover, p53 induces metabolic change by directly regulating several metabolic enzymes. The collective data indicate the importance of oncogenic metabolism in the regulation of EMT, cell invasion and metastasis, and adoption of the CSC phenotype, which all contribute to malignant transformation and tumor development. In this review, we highlight the oncogenic metabolism as a key regulator of EMT and CSC, which is related with tumor progression involving metastasis and chemoresistance. Targeting oncometabolism might be a promising strategy for the development of effective anticancer therapy.
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131
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A 3D microvascular network model to study the impact of hypoxia on the extravasation potential of breast cell lines. Sci Rep 2018; 8:17949. [PMID: 30560881 PMCID: PMC6298998 DOI: 10.1038/s41598-018-36381-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 11/09/2018] [Indexed: 01/01/2023] Open
Abstract
Hypoxia is a common feature of the tumor microenvironment. Accumulating evidence has demonstrated hypoxia to be an important trigger of tumor cell invasion or metastasizes via hypoxia-signaling cascades, including hypoxia-inducible factors (HIFs). Microfluidic model can be a reliable in vitro tool for systematically interrogating individual factors and their accompanying downstream effects, which may otherwise be difficult to study in complex tumor tissues. Here, we used an in vitro model of microvascular networks in a microfluidic chip to measure the extravasation potential of breast cell lines subjected to different oxygen conditions. Through the use of HIF-1α knock-down cell lines, we also validated the importance of HIF-1α in the transmigration ability of human breast cell lines. Three human breast cell lines derived from human breast tissues (MCF10A, MCF-7 and MDA-MB-231) were used in this study to evaluate the role of hypoxia in promoting metastasis at different stages of cancer progression. Under hypoxic conditions, HIF-1α protein level was increased, and coincided with changes in cell morphology, viability and an elevated metastatic potential. These changes were accompanied by an increase in the rate of extravasation compared to normoxia (21% O2). siRNA knockdown of HIF-1α in hypoxic tumors significantly decreased the extravasation rates of all the cell lines tested and may have an effect on the function of metastatic and apoptotic-related cellular processes.
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Yeh CC, Luo JL, Nhut Phan N, Cheng YC, Chow LP, Tsai MH, Chuang EY, Lai LC. Different effects of long noncoding RNA NDRG1-OT1 fragments on NDRG1 transcription in breast cancer cells under hypoxia. RNA Biol 2018; 15:1487-1498. [PMID: 30497328 DOI: 10.1080/15476286.2018.1553480] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Hypoxia plays a crucial role in the aggressiveness of solid tumors by driving multiple signaling pathways. Recently, long non-coding RNA (lncRNA) has been reported to promote or inhibit tumor aggressiveness by regulating gene expression. Previous studies in our laboratory found that the lncRNA NDRG1-OT1 is significantly up-regulated under hypoxia and inhibits its target gene NDRG1 at both the mRNA and protein levels. At the protein level, NDRG1-OT1 increases NDRG1 degradation via ubiquitin-mediated proteolysis. However, the repressive mechanism of NDRG1 at the RNA level is still unknown. Therefore, the purpose of this study was to study how NDRG1-OT1 transcriptionally regulates its target gene NDRG1. Luciferase reporter assays showed that NDRG1-OT1 decreased NDRG1 promoter activities. Mass spectrometry, bioinformatics tools, genetic manipulation, and immunoblotting were used to identify the interacting proteins. Surprisingly, different fragments of NDRG1-OT1 had opposite effects on NDRG1. The first quarter fragment (1-149 nt) of NDRG1-OT1 had no effect on the NDRG1 promoter; the second quarter fragment (150-263 nt) repressed NDRG1 by increasing the binding affinity of HNRNPA1; the third quarter fragment (264-392 nt) improved NDRG1 promoter activity by recruiting HIF-1α; the fourth quarter fragment (393-508 nt) down-regulated NDRG1 promoter activity via down-regulation of KHSRP under hypoxia. In summary, we have found a novel mechanism by which different fragments of the same lncRNA can cause opposite effects within the same target gene.
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Affiliation(s)
- Ching-Ching Yeh
- a Graduate Institute of Physiology, College of Medicine , National Taiwan University , Taipei , Taiwan
| | - Jun-Liang Luo
- a Graduate Institute of Physiology, College of Medicine , National Taiwan University , Taipei , Taiwan
| | - Nam Nhut Phan
- b Bioinformatics Program, Taiwan International Graduate Program, Institute of Information Science , Academia Sinica , Taipei , Taiwan.,c Graduate Institute of Biomedical Electronics and Bioinformatics , National Taiwan University , Taipei , Taiwan
| | - Yi-Chun Cheng
- a Graduate Institute of Physiology, College of Medicine , National Taiwan University , Taipei , Taiwan
| | - Lu-Ping Chow
- d Graduate Institute of Biochemistry and Molecular Biology, College of Medicine , National Taiwan University , Taipei , Taiwan
| | - Mong-Hsun Tsai
- e Institute of Biotechnology , National Taiwan University , Taipei , Taiwan.,f Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine , National Taiwan University , Taipei , Taiwan
| | - Eric Y Chuang
- c Graduate Institute of Biomedical Electronics and Bioinformatics , National Taiwan University , Taipei , Taiwan.,f Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine , National Taiwan University , Taipei , Taiwan
| | - Liang-Chuan Lai
- a Graduate Institute of Physiology, College of Medicine , National Taiwan University , Taipei , Taiwan.,f Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine , National Taiwan University , Taipei , Taiwan
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Yeldag G, Rice A, Del Río Hernández A. Chemoresistance and the Self-Maintaining Tumor Microenvironment. Cancers (Basel) 2018; 10:E471. [PMID: 30487436 PMCID: PMC6315745 DOI: 10.3390/cancers10120471] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 11/24/2018] [Accepted: 11/27/2018] [Indexed: 12/15/2022] Open
Abstract
The progression of cancer is associated with alterations in the tumor microenvironment, including changes in extracellular matrix (ECM) composition, matrix rigidity, hypervascularization, hypoxia, and paracrine factors. One key malignant phenotype of cancer cells is their ability to resist chemotherapeutics, and elements of the ECM can promote chemoresistance in cancer cells through a variety of signaling pathways, inducing changes in gene expression and protein activity that allow resistance. Furthermore, the ECM is maintained as an environment that facilitates chemoresistance, since its constitution modulates the phenotype of cancer-associated cells, which themselves affect the microenvironment. In this review, we discuss how the properties of the tumor microenvironment promote chemoresistance in cancer cells, and the interplay between these external stimuli. We focus on both the response of cancer cells to the external environment, as well as the maintenance of the external environment, and how a chemoresistant phenotype emerges from the complex signaling network present.
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Affiliation(s)
- Gulcen Yeldag
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK.
| | - Alistair Rice
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK.
| | - Armando Del Río Hernández
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK.
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134
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Liu H, Du Y, Zhang Z, Lv L, Xiong W, Zhang L, Li N, He H, Li Q, Liu Y. Autophagy contributes to hypoxia-induced epithelial to mesenchymal transition of endometrial epithelial cells in endometriosis. Biol Reprod 2018; 99:968-981. [PMID: 29860279 PMCID: PMC6297317 DOI: 10.1093/biolre/ioy128] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 03/18/2018] [Accepted: 05/30/2018] [Indexed: 02/06/2023] Open
Abstract
Endometriosis is a benign gynecologic disorder, and presents with malignant characteristics, such as migration and invasion. Hypoxia has been implicated in triggering epithelial-mesenchymal transition (EMT). Hypoxia is also known to induce autophagy. However, the relationship between autophagy and EMT under hypoxia conditions in endometriosis remains unknown. In the present study, we found that the expression of hypoxia-inducible factor-1α (HIF-1α), microtubule associated protein light chain 3 (LC3), and mesenchymal cell marker vimentin was significantly higher in ectopic endometrium from patients with endometriosis, along with decreased expression of epithelial cell marker E-cadherin. After hypoxia treatment, endometrial epithelial cells exhibited enhanced migration and invasion abilities, as well as promoted autophagy and the EMT phenotype. Our analyses also show that HIF-1α was responsible for induction of autophagy. Moreover, inhibition of autophagy by chemical or genetic approaches suppressed hypoxia triggered EMT and reduced cell migration and invasion. Collectively, our findings identify that autophagy is critical for the migration and invasion of endometrial cells through the induction of EMT and indicate that inhibition of autophagy may be a novel useful strategy in the treatment of endometriosis.
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Affiliation(s)
- Hengwei Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Du
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhibing Zhang
- Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, USA
| | - Liqun Lv
- Department of Obstetrics and Gynecology, Wu Han Kang Jian Fu Ying Hospital, Wuhan, China
| | - Wenqian Xiong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Na Li
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haitang He
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qi Li
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Lai B, Li Z, He M, Wang Y, Chen L, Zhang J, Yang Y, Shyy JYJ. Atheroprone flow enhances the endothelial-to-mesenchymal transition. Am J Physiol Heart Circ Physiol 2018; 315:H1293-H1303. [PMID: 30052471 PMCID: PMC6297807 DOI: 10.1152/ajpheart.00213.2018] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 07/06/2018] [Accepted: 07/19/2018] [Indexed: 01/02/2023]
Abstract
The endothelial-to-mesenchymal transition (EndoMT) is a cellular process featuring decreased expression of endothelial marker genes but increased expression of mesenchymal marker genes. The EndoMT is involved in endothelial dysfunction and the pathogenesis of atherosclerosis. To investigate the dynamic expression of EndoMT genes in vascular endothelial cells under atheroprotective pulsatile shear stress (PS) and atheroprone oscillatory shear stress (OS), we analyzed RNA sequencing data from multitimepoint shear-stress experiments. This unbiased analysis involving next-generation sequencing confirmed that PS and OS had an opposite effect in regulating EndoMT genes. Further experimental validations with H2O2 and gain- and loss-of-function approaches indicated that reactive oxygen species are involved in OS-induced EndoMT, whereas AMP-activated protein kinase and sirtuin-1 could inhibit OS-induced EndoMT. Furthermore, compared with PS, OS increased the DNA methylation of the promoter regions of von Willebrand factor, CD31, and cadherin 5 genes but decreased that of cadherin 2, fibroblast-specific protein 1, and vimentin. The translational implication of the present study builds on the ability of the antidiabetic drug metformin and cholesterol-lowering drug atorvastatin to suppress the EndoMT in cultured endothelial cells and in mouse aortas. NEW & NOTEWORTHY Our RNA sequencing data provided a genome-wide and unbiased view of the shear stress regulation of the endothelial-to-mesenchymal transition (EndoMT) in the endothelium. Furthermore, epigenetic regulation (e.g., DNA methylation) is a key mechanism involved in shear stress-regulated EndoMT. The translational implication of this study is that cardiovascular medications such as statins and metformin have similar beneficial effects as that of atheroprotective flow by mitigating EndoMT.
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Affiliation(s)
- Baochang Lai
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an, Shaanxi China
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center , Xi'an, Shaanxi , China
- Institute for Cancer Research, School of Basic Medical Science, Xi'an Jiaotong University , Xi'an, Shaanxi China
| | - Zhao Li
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center , Xi'an, Shaanxi , China
| | - Ming He
- Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Yili Wang
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an, Shaanxi China
- Institute for Cancer Research, School of Basic Medical Science, Xi'an Jiaotong University , Xi'an, Shaanxi China
| | - Lili Chen
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center , Xi'an, Shaanxi , China
| | - Jiao Zhang
- Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla, California
| | - Yan Yang
- Department of Obstetrics and Gynaecology, the First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, Shaanxi China
| | - John Y-J Shyy
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center , Xi'an, Shaanxi , China
- Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla, California
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Shah K, Patel S, Mirza S, Rawal RM. A multi-gene expression profile panel for predicting liver metastasis: An algorithmic approach. PLoS One 2018; 13:e0206400. [PMID: 30383826 PMCID: PMC6211708 DOI: 10.1371/journal.pone.0206400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 10/14/2018] [Indexed: 12/17/2022] Open
Abstract
Background & aim Liver metastasis has been found to affect outcome in prostate, pancreatic and colorectal cancers, but its role in lung cancer is unclear. The 5 year survival rate remains extensively low owing to intrinsic resistance to conventional therapy which can be attributed to the genetic modulators involved in the pathogenesis of the disease. Thus, this study aims to generate a model for early diagnosis and timely treatment of liver metastasis in lung cancer patients. Methods mRNA expression of 15 genes was quantified by real time PCR on lung cancer specimens with (n = 32) and without (n = 30) liver metastasis and their normal counterparts. Principal Component analysis, linear discriminant analysis and hierarchical clustering were conducted to obtain a predictive model. The accuracy of the models was tested by performing Receiver Operating Curve analysis. Results The expression profile of all the 15 genes were subjected to PCA and LDA analysis and 5 models were generated. ROC curve analysis was performed for all the models and the individual genes. It was observed that out of the 15 genes only 8 genes showed significant sensitivity and specificity. Another model consisting of the selected eight genes was generated showing a specificity and sensitivity of 90.0 and 96.87 respectively (p <0.0001). Moreover, hierarchical clustering showed that tumors with a greater fold change lead to poor prognosis. Conclusion Our study led to the generation of a concise, biologically relevant multi-gene panel that significantly and non-invasively predicts liver metastasis in lung cancer patients.
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Affiliation(s)
- Kanisha Shah
- Division of Medicinal Chemistry & Pharmacogenomics, Department of Cancer Biology, The Gujarat Cancer & Research Institute, Ahmedabad, Gujarat, India
| | - Shanaya Patel
- Division of Medicinal Chemistry & Pharmacogenomics, Department of Cancer Biology, The Gujarat Cancer & Research Institute, Ahmedabad, Gujarat, India
| | - Sheefa Mirza
- Division of Medicinal Chemistry & Pharmacogenomics, Department of Cancer Biology, The Gujarat Cancer & Research Institute, Ahmedabad, Gujarat, India
| | - Rakesh M. Rawal
- Division of Medicinal Chemistry & Pharmacogenomics, Department of Cancer Biology, The Gujarat Cancer & Research Institute, Ahmedabad, Gujarat, India
- * E-mail: ,
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Kim IG, Lee JH, Kim SY, Hwang HM, Kim TR, Cho EW. Hypoxia-inducible transgelin 2 selects epithelial-to-mesenchymal transition and γ-radiation-resistant subtypes by focal adhesion kinase-associated insulin-like growth factor 1 receptor activation in non-small-cell lung cancer cells. Cancer Sci 2018; 109:3519-3531. [PMID: 30191639 PMCID: PMC6215889 DOI: 10.1111/cas.13791] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 08/24/2018] [Accepted: 09/01/2018] [Indexed: 12/24/2022] Open
Abstract
Microenvironment, such as hypoxia common to cancer, plays a critical role in the epithelial‐to‐mesenchymal transition (EMT) program, which is a major route of cancer metastasis and confers γ‐radiation resistance to cells. Herein, we showed that transgelin 2 (TAGLN2), an actin‐binding protein, is significantly induced in hypoxic lung cancer cells and that Snail1 is simultaneously increased, which induces EMT by downregulating E‐cadherin expression. Forced TAGLN2 expression induced severe cell death; however, a small population of cells surviving after forced TAGLN2 overexpression showed γ‐radiation resistance, which might promote tumor relapse and recurrence. These surviving cells showed high metastatic activity with an increase of EMT markers including Snail1. In these cells, TAGLN2 activated the insulin‐like growth factor 1 receptor β (IGF1Rβ)/PI3K/AKT pathway by recruitment of focal adhesion kinase to the IGF1R signaling complex. Activation of the IGF1Rβ/PI3K/AKT pathway also induced inactivation of glycogen synthase kinase 3β (GSK3β), which is involved in Snail1 stabilization. Therefore, both the IGF1Rβ inhibitor (AG1024) and the PI3K inhibitor (LY294002) or AKT inactivation with MK2206 lower the cellular level of Snail1. Involvement of GSK3β was also confirmed by treatment with lithium chloride, the inducer of GSK3β phosphorylation, or MG132, the 26S proteasomal inhibitor, which also stabilized Snail1. In conclusion, the present study provides important evidence that hypoxia‐inducible TAGLN2 is involved in the selection of cancer cells with enhanced EMT properties to overcome the detrimental environment of cancer cells.
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Affiliation(s)
- In-Gyu Kim
- Department of Radiation Biology, Environmental Radiation Research Group, Korea Atomic Energy Research Institute, Daejeon, Korea.,Department of Radiation Biotechnology and Applied Radioisotope, University of Science and Technology (UST), Daejeon, Korea
| | - Jei-Ha Lee
- Department of Radiation Biology, Environmental Radiation Research Group, Korea Atomic Energy Research Institute, Daejeon, Korea
| | - Seo-Yeon Kim
- Department of Radiation Biology, Environmental Radiation Research Group, Korea Atomic Energy Research Institute, Daejeon, Korea
| | - Hai-Min Hwang
- Rare Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - Tae-Rim Kim
- Department of Radiation Biology, Environmental Radiation Research Group, Korea Atomic Energy Research Institute, Daejeon, Korea
| | - Eun-Wie Cho
- Rare Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
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Terry S, Faouzi Zaarour R, Hassan Venkatesh G, Francis A, El-Sayed W, Buart S, Bravo P, Thiery J, Chouaib S. Role of Hypoxic Stress in Regulating Tumor Immunogenicity, Resistance and Plasticity. Int J Mol Sci 2018; 19:ijms19103044. [PMID: 30301213 PMCID: PMC6213127 DOI: 10.3390/ijms19103044] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 09/28/2018] [Accepted: 10/04/2018] [Indexed: 12/15/2022] Open
Abstract
Hypoxia, or gradients of hypoxia, occurs in most growing solid tumors and may result in pleotropic effects contributing significantly to tumor aggressiveness and therapy resistance. Indeed, the generated hypoxic stress has a strong impact on tumor cell biology. For example, it may contribute to increasing tumor heterogeneity, help cells gain new functional properties and/or select certain cell subpopulations, facilitating the emergence of therapeutic resistant cancer clones, including cancer stem cells coincident with tumor relapse and progression. It controls tumor immunogenicity, immune plasticity, and promotes the differentiation and expansion of immune-suppressive stromal cells. In this context, manipulation of the hypoxic microenvironment may be considered for preventing or reverting the malignant transformation. Here, we review the current knowledge on how hypoxic stress in tumor microenvironments impacts on tumor heterogeneity, plasticity and resistance, with a special interest in the impact on immune resistance and tumor immunogenicity.
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Affiliation(s)
- Stéphane Terry
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Fac. de médecine-Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
| | - Rania Faouzi Zaarour
- Thumbay Research Institute of Precision Medicine, Gulf Medical University, Ajman 4184, United Arab Emirates.
| | - Goutham Hassan Venkatesh
- Thumbay Research Institute of Precision Medicine, Gulf Medical University, Ajman 4184, United Arab Emirates.
| | - Amirtharaj Francis
- Thumbay Research Institute of Precision Medicine, Gulf Medical University, Ajman 4184, United Arab Emirates.
| | - Walid El-Sayed
- Thumbay Research Institute of Precision Medicine, Gulf Medical University, Ajman 4184, United Arab Emirates.
| | - Stéphanie Buart
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Fac. de médecine-Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
| | - Pamela Bravo
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Fac. de médecine-Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
| | - Jérome Thiery
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Fac. de médecine-Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
| | - Salem Chouaib
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Fac. de médecine-Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
- Thumbay Research Institute of Precision Medicine, Gulf Medical University, Ajman 4184, United Arab Emirates.
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Bommi PV, Ravindran S, Raychaudhuri P, Bagchi S. DDB2 regulates Epithelial-to-Mesenchymal Transition (EMT) in Oral/Head and Neck Squamous Cell Carcinoma. Oncotarget 2018; 9:34708-34718. [PMID: 30410671 PMCID: PMC6205178 DOI: 10.18632/oncotarget.26168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 09/08/2018] [Indexed: 01/21/2023] Open
Abstract
DDB2 is a sensor of DNA damage and it plays an important role in Global Genomic Repair (GG-NER). Our previous studies show that DDB2 is involved in the regulation of metastasis in colon adenocarcinoma. Squamous Cell Carcinomas in the Oral/Head & Neck region (HNSCC) are particularly aggressive due to high incidence of recurrence and distant metastasis. In this study, we show that DDB2 expression is downregulated in advanced HNSCCs and loss of DDB2 expression coincides with reduced survival. Recent meta-analysis of gene expression data characterized the mesenchymal-type (EMT-type) as one most aggressive cancer cluster in HNSCC. Here, we report that DDB2 constitutively represses mRNA expression of the EMT- regulatory transcription factors SNAIL, ZEB1, and angiogenic factor VEGF in HNSCC cells. As a result, re-expression of DDB2 in metastatic cells reversed EMT with transcriptional upregulation of epithelial marker E-cadherin, and downregulation of mesenchymal markers N-cadherin, Vimentin, and Fibronectin. Interestingly, in a reverse assay, depletion of DDB2 in non-metastatic cells induced expression of the same EMT-regulatory transcription factors. TGFβs are major regulators of Snail and Zeb1, and we observed that DDB2 transcriptionally regulates expression of TGFB2 in HNSCC cells. Re-expression of DDB2 in mouse embryonic fibroblasts (MEFs) isolated from Ddb2 (-/-) knockout-mice resulted in repression of EMT-regulatory factors Zeb1, Snail and Tgfb2. Taken together, these results support the active role of DDB2 as a candidate suppressor of the EMT-process in HNSCC. Early detection leads to significantly higher survival in HNSCC and DDB2 expression in tumors can be a predictor of EMT progression.
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Affiliation(s)
- Prashant V. Bommi
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
- Current Address: Department of Clinical Cancer Prevention, Biological Sciences Research Building (BSRB), University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sriram Ravindran
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Pradip Raychaudhuri
- Department of Biochemistry and Molecular Genetics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Srilata Bagchi
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
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Liu J, Huang B, Xiu Z, Zhou Z, Liu J, Li X, Tang X. PI3K/Akt/HIF-1α signaling pathway mediates HPV-16 oncoprotein-induced expression of EMT-related transcription factors in non-small cell lung cancer cells. J Cancer 2018; 9:3456-3466. [PMID: 30310502 PMCID: PMC6171031 DOI: 10.7150/jca.26112] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022] Open
Abstract
Background: Our previous studies have demonstrated that human papillomaviruse (HPV)-16 oncoproteins promoted epithelial-mesenchymal transition (EMT), leading to non-small cell lung cancer (NSCLC) progression, but the underlying molecular mechanisms still remain unclear. PI3K/Akt/HIF-1α signaling pathway has been reported to mediate hypoxia-induced EMT. In this study, we further explored the role of PI3K/Akt/HIF-1α signaling pathway in HPV-16 oncoprotein-induced EMT in NSCLC cells. Methods: A549 and NCI-H460 NSCLC cells were transiently transfected with pEGFP-HPV-16 E6 or E7 constructs. Western blotting and RT-qPCR were respectively performed to determine the protein and mRNA expression of EMT-related transcription factors. HPV-16 E6 or E7-transfected NSCLC cells were co-transfected with specific HIF-1α-siRNA or pretreated with different concentrations of LY294002, a specific PI3K inhibitor, followed by the analysis of expression of EMT-related transcription factors. The correlation between HIF-1α and EMT-related transcription factors in NSCLC tissues was analyzed by immunohistochemical staining and Spearman rank correlation coefficient. Results: HPV-16 E6 and E7 oncoproteins upregulated the expression of Slug and Twist1, the EMT-related transcription factors, at both protein and mRNA levels in A549 and NCI-H460 cells. The co-transfection with specific HIF-1α-siRNA, but not the non-specific (NS)-siRNA, significantly abrogated HPV-16 oncoprotein-induced upregulation of ZEB1, Snail1, Slug, and Twist1 at both protein and mRNA levels. Additionally, pretreatment with LY294002 obviously blocked HPV-16 E6- and E7-induced Snail1, Slug, and Twist1 protein expression in A549 and NCI-H460 cells. Further analysis of clinical specimens showed that HIF-1α protein was strongly expressed in NSCLC tissues, which was positively correlated with ZEB1, Snail1, Slug, and Twist1 protein expression. Conclusions: PI3K/Akt/HIF-1α may contribute to the progression of HPV-associated NSCLC via mediating the expression of EMT-related transcription factors in NSCLC cells.
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Affiliation(s)
- Jinhua Liu
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Bingyu Huang
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Zihan Xiu
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Zhiyuan Zhou
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Jiao Liu
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Xiangyong Li
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Collaborative innovation center for antitumor active substance research and development, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan 523808, P.R. China
| | - Xudong Tang
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Collaborative innovation center for antitumor active substance research and development, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan 523808, P.R. China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan 523808, P.R. China
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Araos J, Sleeman JP, Garvalov BK. The role of hypoxic signalling in metastasis: towards translating knowledge of basic biology into novel anti-tumour strategies. Clin Exp Metastasis 2018; 35:563-599. [DOI: 10.1007/s10585-018-9930-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 08/13/2018] [Indexed: 02/06/2023]
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Ge H, Yan Y, Wu D, Huang Y, Tian F. Potential role of LINC00996 in colorectal cancer: a study based on data mining and bioinformatics. Onco Targets Ther 2018; 11:4845-4855. [PMID: 30147336 PMCID: PMC6098418 DOI: 10.2147/ott.s173225] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background The clinical significance of LINC00996 in colorectal cancer (CRC) has not been verified. In the current study, the authors aimed to explore the expression of LINC00996 and its clinical significance in CRC based on the data mining of Gene Expression Omnibus (GEO) and the Cancer Genome Atlas (TCGA) datasets, as well as to elucidate the functions of its potential target genes. Materials and methods GEO and TCGA microarray datasets were used to evaluate the LINC00996 expression and its clinical significance in CRC. LINC00996 related genes were identified by Multi Experiment Matrix, RNA-Binding Protein DataBase, and The Atlas of Noncoding RNAs in Cancer. Subsequently, they were sent to gene ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway analysis. Results LINC00996 is significantly decreased in CRC tissues compared with non-tumor tissues. Low level of LINC00996 is associated with remote metastasis and poor overall survival. However, LINC00996 has a minimal effect on gender, lymphatic invasion, tumor size, lymph node metastasis, and pathological stage. One hundred and forty-two LINC00996 related genes were identified; the results of functional analysis indicated that LINC00996 might repress tumorigenesis and metastasis via modulating the JAK-STAT, NF-κB, HIF-1, TLR, and PI3K-AKT signaling pathways. Conclusion Our study demonstrates that decreased LINC00996 expression may be involved in colorectal carcinogenesis and metastasis, and the depletion of LINC00996 is associated with a poor outcome in CRC patients. Moreover, the JAK-STAT, NF-κB, HIF-1, TLR, and PI3K-AKT pathways may be the key pathways regulated by LINC00996 in CRC.
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Affiliation(s)
- Hua Ge
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China,
| | - Yan Yan
- Quality Control Department, The First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China
| | - Di Wu
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China,
| | - Yongsheng Huang
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China,
| | - Fei Tian
- Department of Gastrointestinal Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou, People's Republic of China,
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Jiang Z, Wang X, Li J, Yang H, Lin X. Aldolase A as a prognostic factor and mediator of progression via inducing epithelial-mesenchymal transition in gastric cancer. J Cell Mol Med 2018; 22:4377-4386. [PMID: 29992789 PMCID: PMC6111871 DOI: 10.1111/jcmm.13732] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 05/24/2018] [Indexed: 02/03/2023] Open
Abstract
Glycolysis is regarded as the hallmark of cancer development and progression, which involves a multistep enzymatic reaction. This study aimed to explore the clinicopathological significance and potential role of glycolytic enzyme aldolase A (ALDOA) in the carcinogenesis and progression of gastric cancer (GC). ALDOA was screened from three paired liver metastasis tissues and primary GC tissues and further explored with clinical samples and in vitro studies. The ALDOA protein level significantly correlated with a larger tumor diameter (P = .004), advanced T stage (P < .001), N stage (P < .001) and lymphovascular invasion (P = .001). Moreover, the expression of ALDOA was an independent prognostic factor for the 5‐year overall survival and disease‐free survival of patients with GC in both univariate and multivariate survival analyses (P < .05). Silencing the expression of ALDOA in GC cell lines significantly impaired cell growth, proliferation and invasion ability (P < .05). Knockdown of the expression of ALDOA reversed the epithelial–mesenchymal transition process. Mechanically, ALDOA could affect the hypoxia‐inducible factor (HIF)‐1α activity as demonstrated by the HIF‐1α response element–luciferase activity in GC cells. Collectively, this study revealed that ALDOA was a potential biomarker of GC prognosis and was important in the carcinogenesis and progression of human GC.
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Affiliation(s)
- Zhonghua Jiang
- Department of Gastroenterology, The First People's Hospital of Yancheng, Yancheng, China
| | - Xiaohong Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jing Li
- Departments of CyberKnife, Huashan Hospital, Fudan University, Shanghai, China
| | - Hongmei Yang
- Department of Gastroenterology, The First People's Hospital of Yancheng, Yancheng, China
| | - Xin Lin
- Department of Digestive Endoscopy, The First People's Hospital of Wujiang District, Suzhou, China
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Deng SJ, Chen HY, Ye Z, Deng SC, Zhu S, Zeng Z, He C, Liu ML, Huang K, Zhong JX, Xu FY, Li Q, Liu Y, Wang CY, Zhao G. Hypoxia-induced LncRNA-BX111 promotes metastasis and progression of pancreatic cancer through regulating ZEB1 transcription. Oncogene 2018; 37:5811-5828. [PMID: 29970904 DOI: 10.1038/s41388-018-0382-1] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 05/05/2018] [Accepted: 05/06/2018] [Indexed: 12/20/2022]
Abstract
The contribution of long noncoding RNAs (lncRNAs) to pancreatic cancer progression and the regulatory mechanisms of their expression are attractive areas. In the present study, the overexpression of lncRNA-BX111887 (BX111) in pancreatic cancer tissues was detected by microarray and further validated in a cohort of pancreatic cancer tissues. We further demonstrated that knockdown or overexpression of BX111 dramatically repressed or enhanced proliferation and invasion of pancreatic cancer cells. Mechanically, BX111 activated transcription of ZEB1, a key regulator for epithelia-mesenchymal transition (EMT), via recruiting transcriptional factor Y-box protein (YB1) to its promoter region. Moreover, we revealed that BX111 transcription was induced by hypoxia-inducible factor (HIF-1α) in response to hypoxia. In addition, BX111 contributed to the hypoxia-induced EMT of pancreatic cells by regulating expression of ZEB1 and its downstream proteins E-cadherin and MMP2. Coincidence with in vitro results, BX111 depletion effectively inhibited growth and metastasis of xenograft tumor in vivo. The clinical samples of pancreatic cancer further confirmed a positive association between BX111 and ZEB1. Moreover, high BX111 expression was correlated with late TNM stage, lymphatic invasion and distant metastasis, as well as short overall survival time in patients. Taken together, our findings implicate a hypoxia-induced lncRNA contributes to metastasis and progression of pancreatic cancer, and suggest BX111 might be applied as a potential biomarker and therapeutic target for pancreatic cancer.
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Affiliation(s)
- Shi-Jiang Deng
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Heng-Yu Chen
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zeng Ye
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shi-Chang Deng
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shuai Zhu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhu Zeng
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chi He
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ming-Liang Liu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kang Huang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jian-Xin Zhong
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Feng-Yu Xu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qiang Li
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yang Liu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chun-You Wang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Gang Zhao
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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145
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Abd ElAziz AM, Abd ElHamid HS, Mostafa RR, Shalaby YR. Hypoxia-inducible factor-1α expression in colorectal carcinoma. EGYPTIAN JOURNAL OF PATHOLOGY 2018; 38:18-21. [DOI: 10.1097/01.xej.0000534712.68027.d8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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146
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Sugai T, Uesugi N, Kitada Y, Yamada N, Osakabe M, Eizuka M, Sugimoto R, Fujita Y, Kawasaki K, Yamamoto E, Yamano H, Suzuki H, Matsumoto T. Analysis of the expression of cancer-associated fibroblast- and EMT-related proteins in submucosal invasive colorectal cancer. J Cancer 2018; 9:2702-2712. [PMID: 30087711 PMCID: PMC6072811 DOI: 10.7150/jca.25646] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/26/2018] [Indexed: 12/11/2022] Open
Abstract
Objective: Recent studies have shown that cancer-associated fibroblasts (CAFs) and the epithelial-mesenchymal transition (EMT) play important roles in the progression and metastasis of CRC. Although prediction of lymph node metastasis in submucosal invasive colorectal cancer (SiCRC) is important, the relationships of CAF and EMT with lymph node metastasis of SiCRC have not yet been examined. Here, we aimed to analyze the expression patterns of CAF- and EMT-related proteins in SiCRC. Materials and Methods: The expression of CAF-related markers, including α-smooth muscle actin, CD10, podoplanin, fibroblast specific protein 1, and adipocyte enhancer-binding protein 1, and EMT-related proteins [zinc finger protein SNAI2 (ZEB1) and twist-related protein 1 (TWIST1) in SiCRC with (n = 29) or without (n = 80) lymph node metastasis was examined by immunohistochemistry. We examined the expression patterns of biomarkers using hierarchical cluster analysis. Consequently, four subgroups were established based on the expression patterns of CAF- and EMT-related markers, and the associations of these subgroups with clinicopathological variables. Results: In multivariate analysis, subgroup 2, which was characterized by high expression of all markers, was correlated with lymph node metastasis (p < 0.01). Next, we examined the associations of individual biomarkers with lymph node metastasis. Multivariate analysis showed that moderately differentiated adenocarcinoma was significantly associated with lymph node metastasis (p < 0.05). Conclusions: Our findings showed that expression patterns of CAF markers and EMT-related proteins may allow for stratification of patients into risk categories for lymph node metastasis in SiCRC.
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Affiliation(s)
- Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Noriyuki Uesugi
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Yuriko Kitada
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Noriyuki Yamada
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Mitsumasa Osakabe
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Makoto Eizuka
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Ryo Sugimoto
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Yasuko Fujita
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Morioka 020-8505, Japan
| | - Keisuke Kawasaki
- Division of Gastroenterology, Department of Internal Medicine, 19-1, Morioka 020-8505, Japan
| | - Eiichiro Yamamoto
- Department of Gastroenterology, Sapporo Medical University, School of Medicine, Cyuuouku, Sapporo 060-0061, Japan
| | - Hiroo Yamano
- Department of Gastroenterology, Sapporo Medical University, School of Medicine, Cyuuouku, Sapporo 060-0061, Japan
| | - Hiromu Suzuki
- Department of Molecular Biology, Sapporo Medical University, School of Medicine, Cyuuouku, Sapporo 060-0061, Japan
| | - Takayuki Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, 19-1, Morioka 020-8505, Japan
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147
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Mitotic polarization of transcription factors during asymmetric division establishes fate of forming cancer cells. Nat Commun 2018; 9:2424. [PMID: 29930325 PMCID: PMC6013470 DOI: 10.1038/s41467-018-04663-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 05/09/2018] [Indexed: 12/20/2022] Open
Abstract
A model of K-Ras-initiated lung cancer was used to follow the transition of precancerous adenoma to adenocarcinoma. In hypoxic, Tgf-β1-rich interiors of adenomas, we show that adenoma cells divide asymmetrically to produce cancer-generating cells highlighted by epithelial mesenchymal transition and a CD44/Zeb1 loop. In these cells, Zeb1 represses the Smad inhibitor Zeb2/Sip1, causing Pten loss and launching Tgf-β1 signaling that drives nuclear translocation of Yap1. Surprisingly, the nuclear polarization of transcription factors during mitosis establishes parent and daughter fates prior to cytokinesis in sequential asymmetric divisions that generate cancer cells from precancerous lesions. Mutation or knockdown of Zeb1 in the lung blocked the production of CD44hi, Zeb1hi cancer-generating cells from adenoma cells. A CD44/Zeb1 loop then initiates two-step transition of precancerous cells to cancer cells via a stable intermediate population of cancer-generating cells. We show these initial cancer-generating cells are independent of cancer stem cells generated in tumors by p53-regulated reprogramming of existing cancer cells. Transition from premalignant lesion to cancer cell highlights tumor initiation. Here, the authors use a model of K-Ras-initiated lung cancer to document two successive asymmetric divisions, each driven by mitotic polarization of key transcription factors, which lead to generation of initial cancer cells.
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148
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Xia Y, Jiang L, Zhong T. The role of HIF-1α in chemo-/radioresistant tumors. Onco Targets Ther 2018; 11:3003-3011. [PMID: 29872312 PMCID: PMC5973460 DOI: 10.2147/ott.s158206] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chemo-/radioresistance is a major obstacle in clinical oncology. The precise failure mechanisms of chemo-/radioresistance are multifactorial failures. It is now widely accepted that a tumor hypoxia microenvironment contributes significantly to chemo-/radioresistance. Hypoxia is the most common and obvious neoplastic microenvironment and is due to the rapid proliferation of tumor cells. HIF-1α is a principal molecular mediator of adaptability to hypoxia in tumor cells. HIF-1α activation leads to the transcription of a plethora of target genes that promote physiological changes associated with chemo-/radioresistance, including increasing the ability of DNA repair, the inhibition of apoptosis, and alterations of the cellular metabolism. Moreover, recent findings suggest that HIF-1α-activated autophagy is a crucial factor in the promotion of cell survival under the distressed microenvironment, thereby leading to the chemo-/radioresistance. This chapter presents an overview of the role of HIF-1α in chemo-/radioresistance of tumor cells.
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Affiliation(s)
- Yu Xia
- The Graduate School, Gannan Medical University, Ganzhou, People's Republic of China
| | - Lixia Jiang
- Department of Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, People's Republic of China
| | - Tianyu Zhong
- Department of Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, People's Republic of China
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149
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Kuo YT, Jheng JH, Lo MC, Chen WL, Wang SG, Lee HM. Ferrous glycinate regulates cell energy metabolism by restrictinghypoxia-induced factor-1α expression in human A549 cells. Free Radic Res 2018; 52:1348-1358. [PMID: 29764240 DOI: 10.1080/10715762.2018.1476691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Iron or oxygen regulates the stability of hypoxia inducible factor-1α (HIF-1α). We investigated whether ferrous glycinate would affect HIF-1α accumulation, aerobic glycolysis and mitochondrial energy metabolism in human A549 lung cancer cells. Incubation of A549 cells with ferrous glycinate decreased the protein levels of HIF-1α, which was abrogated by proteosome inhibitor, or prolyl hydroxylase inhibitor. The addition of ferrous glycinate decreased protein levels of glucose transporter-1, hexokinase-2, and lactate dehydrogenase A, and decreased pyruvate dehydrogenase kinase-1 (PDK-1) and pyruvate dehydrogenase (PDH) phosphorylation in A549 cells. Ferrous glycinate also increased the expression of the mitochondrial transcription factor A (TFAM), and the mitochondrial protein, cytochrome c oxidase (COX-IV). Silencing of HIF-1α expression mimicked the effects of ferrous glycinate on PDK-1, PDH, TFAM and COX-IV in A549 cells. Ferrous glycinate increased mitochondrial membrane potential and ATP production in A549 cells. These results suggest that ferrous glycinate may reverse Warburg effect through down regulating HIF-1α in A549 cells.
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Affiliation(s)
- Yung-Ting Kuo
- a Department of Pediatrics , Shuang Ho Hospital, Taipei Medical University , Taipei , Taiwan.,b Department of Pediatrics , School of Medicine, College of Medicine, Taipei Medical University , Taipei , Taiwan
| | - Jhong-Huei Jheng
- c Department of Medical Laboratory Sciences and Biotechnology , College of Medical Sciences and Technology, Taipei Medical University , Taipei , Taiwan
| | - Mei-Chen Lo
- a Department of Pediatrics , Shuang Ho Hospital, Taipei Medical University , Taipei , Taiwan
| | - Wei-Lu Chen
- d Department of Nursing , Central Taiwan University of Science and Technology , Taichung , Taiwan
| | - Shyang-Guang Wang
- e Department of Medical Laboratory and Biotechnology , Central Taiwan University of Science and Technology , Taichung , Taiwan
| | - Horng-Mo Lee
- c Department of Medical Laboratory Sciences and Biotechnology , College of Medical Sciences and Technology, Taipei Medical University , Taipei , Taiwan.,f Ph.D. Program in Medical Biotechnology , College of Medical Sciences and Technology, Taipei Medical University , Taipei , Taiwan
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150
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Zhang Y, Wang X, Zhang M, Zhang Z, Jiang L, Li L. GDF15 promotes epithelial-to-mesenchymal transition in colorectal [corrected]. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2018; 46:652-658. [PMID: 29771147 DOI: 10.1080/21691401.2018.1466146] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 04/13/2018] [Accepted: 04/13/2018] [Indexed: 10/16/2022]
Abstract
Growth differentiation factor 15 (GDF15) is a divergent member of the transforming growth factor-β (TGF-β) superfamily that has been associated with colorectal cancers (CRC). However, the role of GDF15 in the progression of CRC remains unknown. We demonstrated that GDF15 expression was higher in fresh CRC tissues than in adjacent normal tissues. Moreover, we found that GDF15 overexpression significantly facilitated cell viability, cell invasion and migration (p < .01 or p < .05). The protein expression of N-cadherin, vimentin and Twist1 were up-regulated by GDF15 overexpression, while E-cadherin was down-regulated. Reciprocally, using a GDF15-shRNA strategy, we observed that GDF15 downregulation inhibited both basal and GDF16-induced cell viability, invasion and migration in LoVo cells. In conclusion, GDF15 could promote cell viability, invasion and migration of LoVo cells through EMT induction.
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Affiliation(s)
- Yifei Zhang
- a Department of Gastrointestinal Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , China
- b Department of Gastrointestinal Surgery , Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University , Yantai , China
| | - Xixun Wang
- b Department of Gastrointestinal Surgery , Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University , Yantai , China
| | - Menglai Zhang
- b Department of Gastrointestinal Surgery , Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University , Yantai , China
| | - Zhenbin Zhang
- b Department of Gastrointestinal Surgery , Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University , Yantai , China
| | - Lixin Jiang
- b Department of Gastrointestinal Surgery , Yantai Yuhuangding Hospital Affiliated to Medical College of Qingdao University , Yantai , China
| | - Leping Li
- a Department of Gastrointestinal Surgery , Shandong Provincial Hospital Affiliated to Shandong University , Jinan , China
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