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Shen J, Zhang T, Cheng Z, Zhu N, Wang H, Lin L, Wang Z, Yi H, Hu M. Lycorine inhibits glioblastoma multiforme growth through EGFR suppression. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:157. [PMID: 30016965 PMCID: PMC6050662 DOI: 10.1186/s13046-018-0785-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
Abstract
Background Lycorine has been revealed to inhibit the development of many kinds of malignant tumors, including glioblastoma multiforme (GBM). Although compelling evidences demonstrated Lycorine’s inhibition on cancers through some peripheral mechanism, in-depth mechanism studies of Lycotine’s anti-GBM effects still call for further exploration. Epidermal Growth Factor Receptor (EGFR) gene amplification and mutations are the most common oncogenic events in GBM. Targeting EGFR by small molecular inhibitors is a rational strategy for GBM treatment. Methods The molecular docking modeling and in vitro EGFR kinase activity system were employed to identify the potential inhibitory effects of Lycorine on EGFR. And the Biacore assay was used to confirm the direct binding status between Lycorine and the intracellular EGFR (696–1022) domain. In vitro assays were conducted to test the suppression of Lycorine on the biological behavior of GBM cells. By RNA interference, EGFR expression was reduced then cells underwent proliferation assay to investigate whether Lycorine’s inhibition on GBM cells was EGFR-dependent or not. RT-PCR and western blotting analysis were carried out to investigate the underlined molecular mechanism that Lycorine exerted on EGFR itself and EGFR signaling pathway. Three different xenograft models (an U251-luc intracranially orthotopic transplantation model, an EGFR stably knockdown U251 subcutaneous xenograft model and a patient-derived xenograft model) were performed to verify Lycorine’s therapeutic potential on GBM in vivo. Results We identified a novel small natural molecule Lycorine binding to the intracellular EGFR (696–1022) domain as an inhibitor of EGFR. Lycorine decreased GBM cell proliferation, migration and colony formation by inducing cell apoptosis in an EGFR-mediated manner. Furthermore, Lycorine inhibited the xenograft tumor growths in three animal models in vivo. Besides, Lycorine impaired the phosphorylation of EGFR, AKT, which were mechanistically associated with expression alteration of a series of cell survival and death regulators and metastasis-related MMP9 protein. Conclusions Our findings identify Lycorine directly interacts with EGFR and inhibits EGFR activation. The most significant result is that Lycorine displays satisfactory therapeutic effect in our patient-derived GBM tumor xenograft, thus supporting the conclusion that Lycorine may be considered as a promising candidate in clinical therapy for GBM.
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Affiliation(s)
- Jia Shen
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.,Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, 92037, USA
| | - Tao Zhang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Zheng Cheng
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Ni Zhu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Hua Wang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Li Lin
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Zexia Wang
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Haotian Yi
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China
| | - Meichun Hu
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, 437000, China.
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Bello M. Binding mechanism of kinase inhibitors to EGFR and T790M, L858R and L858R/T790M mutants through structural and energetic analysis. Int J Biol Macromol 2018; 118:1948-1962. [PMID: 30017980 DOI: 10.1016/j.ijbiomac.2018.07.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/12/2018] [Accepted: 07/11/2018] [Indexed: 02/06/2023]
Abstract
Experimental studies have demonstrated that L858R mutation in the EGF receptor (EGFR) confers tumor sensitivity whereas T790M and L858R/T790M mutations cause resistance to tyrosine kinase inhibitors in patients with non-small cell lung cancer. Theoretical studies have been carried out to try to clarify the structural and energetic details linked to acquired resistance to Gefitinib, Erlotinib or Lapatinib, however, some of these studies are contradictory with each other and with experimental reports and did not mention whether the study was performed by considering the inactive or active EGFR states. In this study, we combined structural data and molecular dynamic simulations coupled to a molecular mechanics generalized Born surface area approach to provide insight into the binding mechanism between three FDA-approved drugs (Erlotinib, Gefitinib and Lapatinib) that target the wild-type and T790M, L858R and L858R/T790M mutants of EGFR. Structural analysis showed that the drugs impact differently the conformational space of active and inactive EGFR. Energetic analysis pointed out that some ligands have better affinity for the inactive EGFR than the active EGFR state. Comparative analysis of the molecular recognition of Gefitinib, Erlotinib and Lapatinib provided insight into the drug sensitivity or resistance observed for the three FDA-approved drugs evaluated.
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Affiliation(s)
- Martiniano Bello
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos de la Escuela Superior de Medicina, Instituto Politécnico Nacional, México, Plan de San Luis Y Díaz Mirón S/N, Col. Casco de Santo Tomas, México City 11340, Mexico.
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153
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Chen S, Le T, Harley BAC, Imoukhuede PI. Characterizing Glioblastoma Heterogeneity via Single-Cell Receptor Quantification. Front Bioeng Biotechnol 2018; 6:92. [PMID: 30050899 PMCID: PMC6050407 DOI: 10.3389/fbioe.2018.00092] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023] Open
Abstract
Dysregulation of tyrosine kinase receptor (RTK) signaling pathways play important roles in glioblastoma (GBM). However, therapies targeting these signaling pathways have not been successful, partially because of drug resistance. Increasing evidence suggests that tumor heterogeneity, more specifically, GBM-associated stem and endothelial cell heterogeneity, may contribute to drug resistance. In this perspective article, we introduce a high-throughput, quantitative approach to profile plasma membrane RTKs on single cells. First, we review the roles of RTKs in cancer. Then, we discuss the sources of cell heterogeneity in GBM, providing context to the key cells directing resistance to drugs. Finally, we present our provisionally patented qFlow cytometry approach, and report results of a "proof of concept" patient-derived xenograft GBM study.
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Affiliation(s)
- Si Chen
- Department of Bioengineering, University of Illinois at Urbana–Champaign, Champaign, IL, United States
| | - Thien Le
- Department of Mathematics and Department of Computer Science, University of Illinois at Urbana–Champaign, Champaign, IL, United States
| | - Brendan A. C. Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana–Champaign, Urbana, IL, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL, United States
| | - P. I. Imoukhuede
- Department of Bioengineering, University of Illinois at Urbana–Champaign, Champaign, IL, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL, United States
- Department of Biomedical Engineering, Washington University, St. Louis, MO, United States
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154
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Downregulation of GEP100 Improved the Growth Inhibition Effect of Erlotinib Through Modulating Mesenchymal Epithelial Transition Process in Pancreatic Cancer. Pancreas 2018; 47:732-737. [PMID: 29851753 DOI: 10.1097/mpa.0000000000001076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVE The epidermal growth factor receptor is overexpressed in the majority of pancreatic cancer. Epidermal growth factor receptor tyrosine kinase inhibitor erlotinib was approved to treat patients combining with gemcitabine. However, the sensitivity is low. Here, we try to reveal the regulatory role of guanine nucleotide exchange protein 100 (GEP100) in erlotinib sensitivity. METHODS We investigated the correlation between GEP100 expression and sensitivity to erlotinib in different pancreatic cancer cell lines, followed by examination of the effect of GEP100 on erlotinib sensitivity by establishing the stable knocked-down cell line. The expression level of epithelial mesenchymal transition-related protein was examined by Western blot, and the regulatory mechanism was investigated by short hairpin RNA. Xenograft experiment was also performed in nude mice. RESULTS We identified a significant correlation between sensitivity to erlotinib and expression of GEP100. GEP100 downregulation increased its sensitivity to erlotinib. E-cadherin short hairpin RNA treatment inhibited this sensitivity. Immunohistochemical staining showed a mutual exclusive expression pattern of GEP100 and E-cadherin in human pancreatic cancer tissues. Xenograft showed that downregulation of GEP100 enhanced the growth inhibition of erlotinib in nude mice. CONCLUSIONS Our results suggested that GEP100 and E-cadherin have the predictive value for responsiveness to erlotinib in pancreatic cancer.
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155
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Bourn J, Cekanova M. Cyclooxygenase inhibitors potentiate receptor tyrosine kinase therapies in bladder cancer cells in vitro. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:1727-1742. [PMID: 29942116 PMCID: PMC6005335 DOI: 10.2147/dddt.s158518] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Purpose Receptor tyrosine kinase inhibitors (RTKIs) are used as targeted therapies for patients diagnosed with cancer with highly expressed receptor tyrosine kinases (RTKs), including the platelet-derived growth factor receptor (PDGFR) and c-Kit receptor. Resistance to targeted therapies is partially due to the activation of alternative pro-survival signaling pathways, including cyclooxygenase (COX)-2. In this study, we validated the effects of two RTKIs, axitinib and AB1010, in combination with COX inhibitors on the V-akt murine thymoma oncogene homolog 1 (Akt) and COX-2 signaling pathways in bladder cancer cells. Methods The expression of several RTKs and their downstream signaling targets was analyzed by Western blot (WB) analysis in human and canine bladder transitional cell carcinoma (TCC) cell lines. The effects of RTKIs and COX inhibitors in bladder TCC cells were assessed by MTS for cell viability, by Caspase-3/7 and Annexin V assay for apoptosis, by WB analysis for detection of COX-2 and Akt signaling pathways, and by enzyme-linked immunosorbent assay for detection of prostaglandin E2 (PGE2) levels. Results All tested TCC cells expressed the c-Kit and PDGFRα receptors, except human 5637 cells that had low RTKs expression. In addition, all tested cells expressed COX-1, COX-2, Akt, extracellular signal regulated kinases 1/2, and nuclear factor kappa-light-chain-enhance of activated B cells proteins, except human UM-UC-3 cells, where no COX-2 expression was detected by WB analysis. Both RTKIs inhibited cell viability and increased apoptosis in a dose-dependent manner in tested bladder TCC cells, which positively correlated with their expression levels of the PDGFRα and c-Kit receptors. RTKIs increased the expression of COX-2 in h-5637 and K9TCC#1Lillie cells. Co-treatment of indomethacin inhibited AB1010-induced COX-2 expression leading to an additive effect in inhibition of cell viability and PGE2 production in tested TCC cells. Conclusion Co-treatment of RTKIs with indomethacin inhibited cell viability and AB1010-induced COX-2 expression resulting in decreased PGE2 production in tested TCC cells. Thus, COX inhibition may further potentiate RTKIs therapies in bladder cancer.
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Affiliation(s)
- Jennifer Bourn
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, The University of Tennessee, Knoxville, TN, USA.,UT-ORNL Graduate School of Genome Science and Technology, The University of Tennessee, Knoxville, TN, USA
| | - Maria Cekanova
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, The University of Tennessee, Knoxville, TN, USA.,UT-ORNL Graduate School of Genome Science and Technology, The University of Tennessee, Knoxville, TN, USA
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156
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Herbst RS, Morgensztern D, Boshoff C. The biology and management of non-small cell lung cancer. Nature 2018; 553:446-454. [PMID: 29364287 DOI: 10.1038/nature25183] [Citation(s) in RCA: 2650] [Impact Index Per Article: 441.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 11/29/2017] [Indexed: 12/17/2022]
Abstract
Important advancements in the treatment of non-small cell lung cancer (NSCLC) have been achieved over the past two decades, increasing our understanding of the disease biology and mechanisms of tumour progression, and advancing early detection and multimodal care. The use of small molecule tyrosine kinase inhibitors and immunotherapy has led to unprecedented survival benefits in selected patients. However, the overall cure and survival rates for NSCLC remain low, particularly in metastatic disease. Therefore, continued research into new drugs and combination therapies is required to expand the clinical benefit to a broader patient population and to improve outcomes in NSCLC.
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Affiliation(s)
- Roy S Herbst
- Yale Cancer Center, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Chris Boshoff
- Yale Cancer Center, Yale School of Medicine, New Haven, Connecticut, USA.,Pfizer, Inc. New York City, New York, USA
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157
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Antitumor effects of histone deacetylase inhibitor suberoylanilide hydroxamic acid in epidermal growth factor receptor-mutant non-small-cell lung cancer lines in vitro and in vivo. Anticancer Drugs 2018; 29:262-270. [PMID: 29356692 DOI: 10.1097/cad.0000000000000597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Histone acetylation is one of the most abundant post-translational modifications in eukaryotic cells; aberrant histone acetylation is related to a range of cancer types because of the dysregulation of histone deacetylases (HDACs). Inhibition of HDACs leads to suppression of tumor growth in multiple cancers, whereas the inhibitory effects of HDAC inhibitors remain incompletely understood in epidermal growth factor receptor (EGFR)-mutant lung cancers. In this study, the antitumor effects of HDACs inhibitor suberoylanilide hydroxamic acid (SAHA, vorinostat) were examined in EGFR-mutant lung cancer cell lines. The results of the present work showed that SAHA markedly inhibited cell viability and proliferation, induced cell apoptosis by arresting the cell cycle in the G2/M phase, and significantly reduced tumor growth in a xenograft model. Further study confirmed that the suppression function of SAHA might be mediated by regulating the ERK-dependent and/or the AKT-dependent pathway; meanwhile, angiogenesis abrogation induced by SAHA exerted effects on tumor regression in vivo. Taken together, our results identify the antitumor effects of HDACs inhibitor SAHA as an alternative therapeutic application for the epigenetic treatment of EGFR-mutant non-small-cell lung cancer.
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158
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Cardona AF, Arrieta O, Zapata MI, Rojas L, Wills B, Reguart N, Karachaliou N, Carranza H, Vargas C, Otero J, Archila P, Martín C, Corrales L, Cuello M, Ortiz C, Pino LE, Rosell R, Zatarain-Barrón ZL. Acquired Resistance to Erlotinib in EGFR Mutation-Positive Lung Adenocarcinoma among Hispanics (CLICaP). Target Oncol 2018; 12:513-523. [PMID: 28620690 DOI: 10.1007/s11523-017-0497-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Lung cancer harboring epidermal growth factor receptor (EGFR) mutations and treated with EGFR tyrosine kinase inhibitors (TKIs) all eventually develop acquired resistance to the treatment, with half of the patients developing EGFR T790M resistance mutations. OBJECTIVE The purpose of this study was to assess histological and clinical characteristics and survival outcomes in Hispanic EGFR mutated lung cancer patients after disease progression. PATIENTS AND METHODS EGFR mutation-positive lung cancer patients (n = 34) with acquired resistance to the EGFR-TKI erlotinib were identified from 2011 to 2015. Post-progression tumor specimens were collected for molecular analysis. Post-progression interventions, response to treatment, and survival were assessed and compared among all patients and those with and without T790M mutations. RESULTS Mean age was 59.4 ± 13.9 years, 65% were never-smokers, and 53% had a performance status 0-1. All patients received erlotinib as first-line treatment. Identified mutations included: 60% DelE19 (Del746-750) and 40% L858R. First-line erlotinib overall response rate (ORR) was 61.8% and progression free survival (PFS) was 16.8 months (95% CI: 13.7-19.9). Acquired resistance mutations identified were T790M mutation (47.1%); PI3K mutations (14.7%); EGFR amplification (14.7%); KRAS mutation (5.9%); MET amplification (8.8%); HER2 alterations (5.9%, deletions/insertions in e20); and SCLC transformation (2.9%). Of patients, 79.4% received treatment after progression. ORR for post-erlotinib treatment was 47.1% (CR 2/PR 14) and median PFS was 8.3 months (95% CI: 2.2-36.6). Median overall survival (OS) from treatment initiation was 32.9 months (95% CI: 30.4-35.3), and only the use of post-progression therapy affected OS in a multivariate analysis (p = 0.05). CONCLUSIONS Hispanic patients with acquired resistance to erlotinib continued to be sensitive to other treatments after progression. The proportion of T790M+ patients appears to be similar to that previously reported in Caucasians.
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Affiliation(s)
- Andrés F Cardona
- Clinical and Translational Oncology Group, Institute of Oncology, Clínica del Country, Bogotá, Colombia. .,Foundation for Clinical and Applied Cancer Research - FICMAC, Bogotá, Colombia. .,Internal Medicine Department, Universidad El Bosque- Fundación Santa Fe de Bogotá, Bogotá, Colombia.
| | - Oscar Arrieta
- Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerología (INCan), México City, México
| | - Martín Ignacio Zapata
- Internal Medicine Department, Universidad El Bosque- Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Leonardo Rojas
- Medical Oncology Department, Centro Javeriano de Oncología, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Beatriz Wills
- Foundation for Clinical and Applied Cancer Research - FICMAC, Bogotá, Colombia
| | - Noemí Reguart
- Medical Oncology, Hospital Clinic, Barcelona and Translational Genomics and Targeted Therapeutics in Solid Tumors, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Niki Karachaliou
- Translational Research Unit, IOR/Dexeus, University Hospital, Barcelona, Spain
| | - Hernán Carranza
- Clinical and Translational Oncology Group, Institute of Oncology, Clínica del Country, Bogotá, Colombia.,Foundation for Clinical and Applied Cancer Research - FICMAC, Bogotá, Colombia
| | - Carlos Vargas
- Clinical and Translational Oncology Group, Institute of Oncology, Clínica del Country, Bogotá, Colombia.,Foundation for Clinical and Applied Cancer Research - FICMAC, Bogotá, Colombia
| | - Jorge Otero
- Clinical and Translational Oncology Group, Institute of Oncology, Clínica del Country, Bogotá, Colombia.,Foundation for Clinical and Applied Cancer Research - FICMAC, Bogotá, Colombia
| | - Pilar Archila
- Foundation for Clinical and Applied Cancer Research - FICMAC, Bogotá, Colombia
| | - Claudio Martín
- Medical Oncology Department, Thoracic Oncology Unit, Instituto Flemin, Buenos Aires, Argentina
| | - Luis Corrales
- Medical Oncology Department, Hospital San Juan de Dios, San José, Costa Rica
| | | | - Carlos Ortiz
- Clinical and Translational Oncology Group, Institute of Oncology, Clínica del Country, Bogotá, Colombia
| | - Luis E Pino
- Clinical Oncology Group, Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Rafael Rosell
- Medical Oncology Department, Catalan Institute of Oncology-ICO, Barcelona, Spain
| | - Zyanya Lucia Zatarain-Barrón
- Thoracic Oncology Unit and Laboratory of Personalized Medicine, Instituto Nacional de Cancerología (INCan), México City, México
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159
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Boesch M, Spizzo G, Seeber A. Concise Review: Aggressive Colorectal Cancer: Role of Epithelial Cell Adhesion Molecule in Cancer Stem Cells and Epithelial-to-Mesenchymal Transition. Stem Cells Transl Med 2018; 7:495-501. [PMID: 29667344 PMCID: PMC5980125 DOI: 10.1002/sctm.17-0289] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 01/31/2018] [Indexed: 12/22/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies worldwide. In spite of various attempts to ameliorate outcome by escalating treatment, significant improvement is lacking particularly in the adjuvant setting. It has been proposed that cancer stem cells (CSCs) and the epithelial‐to‐mesenchymal transition (EMT) are at least partially responsible for therapy resistance in CRC. The epithelial cell adhesion molecule (EpCAM) was one of the first CSC antigens to be described. Furthermore, an EpCAM‐specific antibody (edrecolomab) has the merit of having launched the era of monoclonal antibody treatment in oncology in the 1990s. However, despite great initial enthusiasm, monoclonal antibody treatment has not proven successful in the adjuvant treatment of CRC patients. In the meantime, new insights into the function of EpCAM in CRC have emerged and new drugs targeting various epitopes have been developed. In this review article, we provide an update on the role of EpCAM in CSCs and EMT, and emphasize the potential predictive selection criteria for novel treatment strategies and refined clinical trial design. stemcellstranslationalmedicine2018;7:495–501
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Affiliation(s)
- Maximilian Boesch
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland.,Internal Medicine V, Medical University of Innsbruck, Innsbruck, Austria.,Tyrolean Cancer Research Institute (TKFI), Innsbruck, Austria
| | - Gilbert Spizzo
- Internal Medicine V, Medical University of Innsbruck, Innsbruck, Austria.,Tyrolean Cancer Research Institute (TKFI), Innsbruck, Austria
| | - Andreas Seeber
- Internal Medicine V, Medical University of Innsbruck, Innsbruck, Austria.,Tyrolean Cancer Research Institute (TKFI), Innsbruck, Austria
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160
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Co-expression and prognostic significance of the HER family members, EGFRvIII, c-MET, CD44 in patients with ovarian cancer. Oncotarget 2018; 9:19662-19674. [PMID: 29731973 PMCID: PMC5929416 DOI: 10.18632/oncotarget.24791] [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: 11/03/2017] [Accepted: 03/02/2018] [Indexed: 12/23/2022] Open
Abstract
EGFR and HER-2 are important targets but none of the monoclonal antibodies or small molecule tyrosine kinase inhibitors specific for the HER members has been approved for the treatment of patients with ovarian cancers. In some studies, co-expression of other growth factor receptors has been associated with resistance to therapy with the HER inhibitors. The aim of the present study was to determine the relative expression, cellular location, and prognostic significance of HER-family members, the EGFR mutant (EGFRvIII) c-MET, IGF-1R and the cancer stem cell biomarker CD44 in 60 patients with FIGO stage III and IV ovarian cancer. At cut off >5% of tumour cells with positive staining, 62%, 59%, 65% and 45% of the cases were EGFR, HER-2, HER-3 and HER-4 positive, and 3%, 22% and 48.3% of the cases were positive for EGFRvIII, c-MET, and CD44 respectively. Interestingly, 23% co-expressed all four members of the HER family. On univariate analysis, only EGFR staining at >50% of tumour cells (HR = 3.57, p = 0.038) and CD44 staining at 3+ intensity (HR = 7.99, p = 0.004) were associated with a poorer overall survival. EGFR expression (HR = 2.83, p = 0.019) and its co-expression with HER-2, HER-3, HER-2/HER-3, and c-MET were all associated with poorer disease-free survival. Our results suggest co-expression of the HER-family members is common in Stage III and IV ovarian cancer patients. Further studies on the prognostic significance and predictive value of all HER family member proteins for the response to treatment with various forms of the HER inhibitors are warranted.
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161
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Li L, Sun Y, Feng M, Wang L, Liu J. Clinical significance of blood-based miRNAs as biomarkers of non-small cell lung cancer. Oncol Lett 2018; 15:8915-8925. [PMID: 29805626 DOI: 10.3892/ol.2018.8469] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 01/05/2018] [Indexed: 12/18/2022] Open
Abstract
Non-small-cell lung cancer (NSCLC) accounts for 85% of all cases of lung cancer. However, the predicted 5-year survival rate of patients with NSCLC is only 15.9%. microRNAs (miRNAs) are single-stranded, noncoding RNA molecules that are easily detectable in blood in a non-invasive manner, with features of stability, reproducibility and consistency in blood. Therefore, miRNAs derived from blood are able to have a significant impact on NSCLC diagnosis, metastasis and targeted therapies. Compared with the clinical protein markers carcinoembryonic antigen, cytokeratin fragment 21-1 and cancer antigen-125, blood-based miRNAs also display a higher diagnostic efficacy in NSCLC. Exosomal miRNAs are identified to be easily measured and have the potential to be used as diagnostic biomarkers in NSCLC, therefore providing an alternative method of biopsy profiling. The miRNA profile in exosomes is similar to the profile in primary tumor, meaning that this feature may be a powerful tool for NSCLC clinical diagnosis and targeted therapies. The focus of the present review was the clinical significance of blood-based exosomal miRNAs in diagnosis, prognosis, metastasis and targeted therapies of NSCLC.
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Affiliation(s)
- Lin Li
- Stem Cell Clinical Research Center, National Joint Engineering Laboratory, Regenerative Medicine Centre, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Yu Sun
- Stem Cell Clinical Research Center, National Joint Engineering Laboratory, Regenerative Medicine Centre, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Min Feng
- Stem Cell Clinical Research Center, National Joint Engineering Laboratory, Regenerative Medicine Centre, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Liang Wang
- Stem Cell Clinical Research Center, National Joint Engineering Laboratory, Regenerative Medicine Centre, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Jing Liu
- Stem Cell Clinical Research Center, National Joint Engineering Laboratory, Regenerative Medicine Centre, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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162
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The effect of near-infrared fluorescence conjugation on the anti-cancer potential of cetuximab. Lab Anim Res 2018; 34:30-36. [PMID: 29628974 PMCID: PMC5876161 DOI: 10.5625/lar.2018.34.1.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/27/2018] [Accepted: 02/28/2018] [Indexed: 11/25/2022] Open
Abstract
This study investigated the anti-cancer potential of a near-infrared fluorescence (NIRF) molecule conjugated with Cetuximab (Cetuximab-NIRF) in six-week-old female BALB/c athymic (nu+/nu+) nude mice. A431 cells were cultured and injected into the animals to induce solid tumors. Paclitaxel (30 mg/kg body weight (BW)), Cetuximab (1 mg/kg BW), and Cetuximab-NIRF (0.25, 0.5 and 1.0 mg/kg BW) were intraperitoneally injected twice a week into the A431 cell xenografts of the nude mice. Changes in BW, tumor volume and weight, fat and lean mass, and diameter of the peri-tumoral blood vessel were determined after two weeks. Tumor volumes and weights were significantly decreased in the Cetuximab-NIRF (1 mg/kg BW) group compared with the control group (P<0.001). Lean mass and total body water content were also conspicuously reduced in the Cetuximab-NIRF (1 mg/kg BW) group compared with the vehicle control group. Peri-tumoral blood vessel diameters were very thin in the Cetuximab-NIRF groups compared with those of the paclitaxel group. These results indicate that the conjugation of Cetuximab with NIRF does not affect the anti-cancer potential of Cetuximab and NIRF can be used for molecular imaging in cancer treatments.
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163
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Genomic Profiling on an Unselected Solid Tumor Population Reveals a Highly Mutated Wnt/β-Catenin Pathway Associated with Oncogenic EGFR Mutations. J Pers Med 2018; 8:jpm8020013. [PMID: 29642553 PMCID: PMC6023530 DOI: 10.3390/jpm8020013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 03/29/2018] [Accepted: 04/06/2018] [Indexed: 12/13/2022] Open
Abstract
Oncogenic epidermal growth factor receptors (EGFRs) can recruit key effectors in diverse cellular processes to propagate oncogenic signals. Targeted and combinational therapeutic strategies have been successfully applied for treating EGFR-driven cancers. However, a main challenge in EGFR therapies is drug resistance due to mutations, oncogenic shift, alternative signaling, and other potential mechanisms. To further understand the genetic alterations associated with oncogenic EGFRs and to provide further insight into optimal and personalized therapeutic strategies, we applied a proprietary comprehensive next-generation sequencing (NGS)-based assay of 435 genes to systematically study the genomic profiles of 1565 unselected solid cancer patient samples. We found that activating EGFR mutations were predominantly detected in lung cancer, particularly in non-small cell lung cancer (NSCLC). The mutational landscape of EGFR-driven tumors covered most key signaling pathways and biological processes. Strikingly, the Wnt/β-catenin pathway was highly mutated (48 variants detected in 46% of the EGFR-driven tumors), and its variant number topped that in the TP53/apoptosis and PI3K-AKT-mTOR pathways. Furthermore, an analysis of mutation distribution revealed a differential association pattern of gene mutations between EGFR exon 19del and EGFR L858R. Our results confirm the aggressive nature of the oncogenic EGFR-driven tumors and reassure that a combinational strategy should have advantages over an EGFR-targeted monotherapy and holds great promise for overcoming drug resistance.
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164
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Heo J, Kim JG, Kim S, Kang H. Stat5 phosphorylation is responsible for the excessive potency of HB‐EGF. J Cell Biochem 2018; 119:5297-5307. [DOI: 10.1002/jcb.26639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 12/20/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Jeongyeon Heo
- Division of Life SciencesCollege of Life Sciences and BioengineeringIncheon National UniversityIncheonRepublic of Korea
| | - Jae Geun Kim
- Division of Life SciencesCollege of Life Sciences and BioengineeringIncheon National UniversityIncheonRepublic of Korea
| | - Sunghwan Kim
- New Drug Development CenterDaegu‐Gyeongbuk Medical Innovation FoundationDaeguRepublic of Korea
| | - Hara Kang
- Division of Life SciencesCollege of Life Sciences and BioengineeringIncheon National UniversityIncheonRepublic of Korea
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165
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Elbaz M, Ahirwar D, Ravi J, Nasser MW, Ganju RK. Novel role of cannabinoid receptor 2 in inhibiting EGF/EGFR and IGF-I/IGF-IR pathways in breast cancer. Oncotarget 2018; 8:29668-29678. [PMID: 27213582 PMCID: PMC5444694 DOI: 10.18632/oncotarget.9408] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 04/10/2016] [Indexed: 12/18/2022] Open
Abstract
Breast cancer is the second leading cause of cancer deaths among women. Cannabinoid receptor 2 (CNR2 or CB2) is an integral part of the endocannabinoid system. Although CNR2 is highly expressed in the breast cancer tissues as well as breast cancer cell lines, its functional role in breast tumorigenesis is not well understood. We observed that estrogen receptor-α negative (ERα-) breast cancer cells highly express epidermal growth factor receptor (EGFR) as well as insulin-like growth factor-I receptor (IGF-IR). We also observed IGF-IR upregulation in ERα+ breast cancer cells. In addition, we found that higher CNR2 expression correlates with better recurrence free survival in ERα- and ERα+ breast cancer patients. Therefore, we analyzed the role of CNR2 specific agonist (JWH-015) on EGF and/or IGF-I-induced tumorigenic events in ERα- and ERα+ breast cancers. Our studies showed that CNR2 activation inhibited EGF and IGF-I-induced migration and invasion of ERα+ and ERα- breast cancer cells. At the molecular level, JWH-015 inhibited EGFR and IGF-IR activation and their downstream targets STAT3, AKT, ERK, NF-kB and matrix metalloproteinases (MMPs). In vivo studies showed that JWH-015 significantly reduced breast cancer growth in ERα+ and ERα- breast cancer mouse models. Furthermore, we found that the tumors derived from JWH-015-treated mice showed reduced activation of EGFR and IGF-IR and their downstream targets. In conclusion, we show that CNR2 activation suppresses breast cancer through novel mechanisms by inhibiting EGF/EGFR and IGF-I/IGF-IR signaling axes.
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Affiliation(s)
- Mohamad Elbaz
- Department of Pathology and The Comprehensive Cancer Center, The Ohio State University, Wexner Medical Center, Columbus, OH, USA.,Department of Pharmacology, Pharmacy School, Helwan University, Helwan, Egypt
| | - Dinesh Ahirwar
- Department of Pathology and The Comprehensive Cancer Center, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Janani Ravi
- Department of Pathology and The Comprehensive Cancer Center, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Mohd W Nasser
- Department of Pathology and The Comprehensive Cancer Center, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Ramesh K Ganju
- Department of Pathology and The Comprehensive Cancer Center, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
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166
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Fertig EJ, Ozawa H, Thakar M, Howard JD, Kagohara LT, Krigsfeld G, Ranaweera RS, Hughes RM, Perez J, Jones S, Favorov AV, Carey J, Stein-O'Brien G, Gaykalova DA, Ochs MF, Chung CH. CoGAPS matrix factorization algorithm identifies transcriptional changes in AP-2alpha target genes in feedback from therapeutic inhibition of the EGFR network. Oncotarget 2018; 7:73845-73864. [PMID: 27650546 PMCID: PMC5342018 DOI: 10.18632/oncotarget.12075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 09/02/2016] [Indexed: 01/03/2023] Open
Abstract
Patients with oncogene driven tumors are treated with targeted therapeutics including EGFR inhibitors. Genomic data from The Cancer Genome Atlas (TCGA) demonstrates molecular alterations to EGFR, MAPK, and PI3K pathways in previously untreated tumors. Therefore, this study uses bioinformatics algorithms to delineate interactions resulting from EGFR inhibitor use in cancer cells with these genetic alterations. We modify the HaCaT keratinocyte cell line model to simulate cancer cells with constitutive activation of EGFR, HRAS, and PI3K in a controlled genetic background. We then measure gene expression after treating modified HaCaT cells with gefitinib, afatinib, and cetuximab. The CoGAPS algorithm distinguishes a gene expression signature associated with the anticipated silencing of the EGFR network. It also infers a feedback signature with EGFR gene expression itself increasing in cells that are responsive to EGFR inhibitors. This feedback signature has increased expression of several growth factor receptors regulated by the AP-2 family of transcription factors. The gene expression signatures for AP-2alpha are further correlated with sensitivity to cetuximab treatment in HNSCC cell lines and changes in EGFR expression in HNSCC tumors with low CDKN2A gene expression. In addition, the AP-2alpha gene expression signatures are also associated with inhibition of MEK, PI3K, and mTOR pathways in the Library of Integrated Network-Based Cellular Signatures (LINCS) data. These results suggest that AP-2 transcription factors are activated as feedback from EGFR network inhibition and may mediate EGFR inhibitor resistance.
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Affiliation(s)
- Elana J Fertig
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Hiroyuki Ozawa
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Otorhinolaryngology-Head and Neck Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Manjusha Thakar
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Jason D Howard
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Luciane T Kagohara
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Gabriel Krigsfeld
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Ruchira S Ranaweera
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, FL, USA
| | - Robert M Hughes
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Jimena Perez
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Siân Jones
- Personal Genome Diagnostics, Baltimore, MD, USA
| | - Alexander V Favorov
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Vavilov Institute of General Genetics, Moscow, Russia.,Research Institute for Genetics and Selection of Industrial Microorganisms, Moscow, Russia
| | - Jacob Carey
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Genevieve Stein-O'Brien
- Institute of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA.,Lieber Institute for Brain Development, Baltimore, MD, USA
| | - Daria A Gaykalova
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael F Ochs
- Department of Mathematics and Statistics, The College of New Jersey, Ewing Township, NJ, USA
| | - Christine H Chung
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Head and Neck-Endocrine Oncology, Moffitt Cancer Center, Tampa, FL, USA
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167
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Xu Q, Zhang Q, Ishida Y, Hajjar S, Tang X, Shi H, Dang CV, Le AD. EGF induces epithelial-mesenchymal transition and cancer stem-like cell properties in human oral cancer cells via promoting Warburg effect. Oncotarget 2018; 8:9557-9571. [PMID: 27926487 PMCID: PMC5354753 DOI: 10.18632/oncotarget.13771] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/21/2016] [Indexed: 12/12/2022] Open
Abstract
"Warburg effect", the enhanced glycolysis or aerobic glycolysis, confers cancer cells the ability to survive and proliferate even under stressed conditions. In this study, we explored the role of epidermal growth factor (EGF) in orchestrating Warburg effect, the epithelial-mesenchymal transition (EMT) process, and the acquisition of cancer stem-like cell properties in human oral squamous cell carcinoma (OSCC) cells. Our results showed that EGF induces EMT process in OSCC cells, which correlates with the acquisition of cancer stem-like properties, including the enrichment of CD44+/CD24- population of cancer cells and an increased expression of CSC-related genes, aldehyde dehydrogenase-1 (ALDH1) and Bmi-1. We also showed that EGF concomitantly enhanced L-lactate production, while blocking glycolysis by 2-deoxy-D-glucose (2-DG) robustly reversed EGF-induced EMT process and CSC-like properties in OSCC cells. Mechanistically, we demonstrated that EGF promoted EMT process and CSC generation through EGFR/PI3K/HIF-1α axis-orchestrated glycolysis. Using an orthotopic tumor model of human OSCC (UM-SCC1) injected in the tongue of BALB/c nude mice, we showed that treatment with 2-DG in vivo significantly inhibited the metastasis of tumor cells to the regional cervical lymph nodes and reduced the expression of ALDH1 and vimentin in both in situ tumors and tumor cell-invaded regional lymph nodes. Taken together, these findings have unveiled a new mechanism that EGF drives OSCC metastasis through induction of EMT process and CSC generation, which is driven by an enhanced glycolytic metabolic program in OSCC cells.
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Affiliation(s)
- Qilin Xu
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - Qunzhou Zhang
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - Yasutaka Ishida
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA.,Department of Molecular Oral Medicine and Maxillofacial Surgery, Graduate School of Biomedical Sciences, Hiroshima University, Japan
| | - Souren Hajjar
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - Xudong Tang
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA.,Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Haoran Shi
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - Chi V Dang
- Abramson Cancer Center, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Anh D Le
- Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, Pennsylvania, USA.,Department of Oral & Maxillofacial Surgery, Penn Medicine Hospital of The University of Pennsylvania, Philadelphia, Pennsylvania, USA
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168
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O'Flanagan CH, O'Shea S, Lyons A, Fogarty FM, McCabe N, Kennedy RD, O'Connor R. IGF-1R inhibition sensitizes breast cancer cells to ATM-related kinase (ATR) inhibitor and cisplatin. Oncotarget 2018; 7:56826-56841. [PMID: 27472395 PMCID: PMC5302955 DOI: 10.18632/oncotarget.10862] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/10/2016] [Indexed: 01/18/2023] Open
Abstract
The complexity of the IGF-1 signalling axis is clearly a roadblock in targeting this receptor in cancer therapy. Here, we sought to identify mediators of resistance, and potential co-targets for IGF-1R inhibition. By using an siRNA functional screen with the IGF-1R tyrosine kinase inhibitor (TKI) BMS-754807 in MCF-7 cells we identified several genes encoding components of the DNA damage response (DDR) pathways as mediators of resistance to IGF-1R kinase inhibition. These included ATM and Ataxia Telangiectasia and RAD3-related kinase (ATR). We also observed a clear induction of DDR in cells that were exposed to IGF-1R TKIs (BMS-754807 and OSI-906) as indicated by accumulation of γ-H2AX, and phosphorylated Chk1. Combination of the IGF-1R/IR TKIs with an ATR kinase inhibitor VE-821 resulted in additive to synergistic cytotoxicity compared to either drug alone. In MCF-7 cells with stably acquired resistance to the IGF-1R TKI (MCF-7-R), DNA damage was also observed, and again, dual inhibition of the ATR kinase and IGF-1R/IR kinase resulted in synergistic cytotoxicity. Interestingly, dual inhibition of ATR and IGF-1R was more effective in MCF-7-R cells than parental cells. IGF-1R TKIs also potentiated the effects of cisplatin in a panel of breast cancer cell lines. Overall, our findings identify induction of DDR by IGF-1R kinase inhibition as a rationale for co-targeting the IGF-1R with ATR kinase inhibitors or cisplatin, particularly in cells with acquired resistance to TKIs.
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Affiliation(s)
- Ciara H O'Flanagan
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Sandra O'Shea
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Amy Lyons
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Fionola M Fogarty
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Nuala McCabe
- Almac Diagnostics, Craigavon, Northern Ireland, UK
| | - Richard D Kennedy
- Almac Diagnostics, Craigavon, Northern Ireland, UK.,Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Rosemary O'Connor
- School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
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169
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Artene SA, Tuţă C, Dragoi A, Alexandru O, Stefana Oana P, Tache DE, Dănciulescu MM, Boldeanu MV, Siloşi CA, Dricu A. Current and emerging EGFR therapies for glioblastoma. J Immunoassay Immunochem 2018; 39:1-11. [PMID: 29308973 DOI: 10.1080/15321819.2017.1411816] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Glioblastomas (GBMs) are the most lethal and hard to treat malignancies in clinical practice. The standard of care for treating GBM involving surgery and adjuvant radiotherapy and concomitant temozolomide (TMZ) has remained virtually unchanged in the past decade. Molecular targeted therapies against cancer-specific structures have reported mediocre results in the treatment of GBM, due to multiple factors such as the presence of the blood brain barrier or a vast array of molecular alterations which greatly hinder the action of the most therapeutic agents. One such therapy is directed against the epidermal growth factor (EGF) and its' receptor (EGFR) using either monoclonal antibodies or tyrosine kinase inhibitors. Even though anti-EGF/EGFR treatment produced encouraging results in other forms of cancer it failed to present any clinical benefit for patients with GBM. Lately, immunotherapies that focus on using the host's own immune system against cancer cells have gained popularity, with approaches like peptide vaccination being successfully used in clinical trials for different types of malignancies. These immune-based therapies could hold the key to improving both the prognosis and quality of life for patients suffering for cancers previously considered incurable, such as GBM.
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Affiliation(s)
- Stefan Alexandru Artene
- a Department of Functional Sciences , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Cristian Tuţă
- a Department of Functional Sciences , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Alexandra Dragoi
- a Department of Functional Sciences , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Oana Alexandru
- b Department of Neurology , "Bagdasar-Arseni" University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Purcaru Stefana Oana
- a Department of Functional Sciences , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Daniela Elise Tache
- a Department of Functional Sciences , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | | | - Mihai Virgil Boldeanu
- d Department of Microbiology , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Cristian Adrian Siloşi
- e Department of Immunology-Laboratory of Immunology , University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Anica Dricu
- a Department of Functional Sciences , University of Medicine and Pharmacy of Craiova, Craiova, Romania
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170
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Wang CY, Guo ST, Croft A, Yan XG, Jin L, Zhang XD, Jiang CC. BAG3-dependent expression of Mcl-1 confers resistance of mutant KRAScolon cancer cells to the HSP90 inhibitor AUY922. Mol Carcinog 2018; 57:284-294. [DOI: 10.1002/mc.22755] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Chun Yan Wang
- School of Biomedical Sciences and Pharmacy; The University of Newcastle; New South Wales Australia
| | - Su Tang Guo
- School of Biomedical Sciences and Pharmacy; The University of Newcastle; New South Wales Australia
| | - Amanda Croft
- School of Biomedical Sciences and Pharmacy; The University of Newcastle; New South Wales Australia
| | - Xu Guang Yan
- School of Biomedical Sciences and Pharmacy; The University of Newcastle; New South Wales Australia
| | - Lei Jin
- School of Medicine and Public Health; The University of Newcastle; New South Wales Australia
| | - Xu Dong Zhang
- School of Biomedical Sciences and Pharmacy; The University of Newcastle; New South Wales Australia
| | - Chen Chen Jiang
- School of Medicine and Public Health; The University of Newcastle; New South Wales Australia
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171
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Dopeso H, Jiao HK, Cuesta AM, Henze AT, Jurida L, Kracht M, Acker-Palmer A, Garvalov BK, Acker T. PHD3 Controls Lung Cancer Metastasis and Resistance to EGFR Inhibitors through TGFα. Cancer Res 2018; 78:1805-1819. [PMID: 29339541 DOI: 10.1158/0008-5472.can-17-1346] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/27/2017] [Accepted: 01/10/2018] [Indexed: 11/16/2022]
Abstract
Lung cancer is the leading cause of cancer-related death worldwide, in large part due to its high propensity to metastasize and to develop therapy resistance. Adaptive responses to hypoxia and epithelial-mesenchymal transition (EMT) are linked to tumor metastasis and drug resistance, but little is known about how oxygen sensing and EMT intersect to control these hallmarks of cancer. Here, we show that the oxygen sensor PHD3 links hypoxic signaling and EMT regulation in the lung tumor microenvironment. PHD3 was repressed by signals that induce EMT and acted as a negative regulator of EMT, metastasis, and therapeutic resistance. PHD3 depletion in tumors, which can be caused by the EMT inducer TGFβ or by promoter methylation, enhanced EMT and spontaneous metastasis via HIF-dependent upregulation of the EGFR ligand TGFα. In turn, TGFα stimulated EGFR, which potentiated SMAD signaling, reinforcing EMT and metastasis. In clinical specimens of lung cancer, reduced PHD3 expression was linked to poor prognosis and to therapeutic resistance against EGFR inhibitors such as erlotinib. Reexpression of PHD3 in lung cancer cells suppressed EMT and metastasis and restored sensitivity to erlotinib. Taken together, our results establish a key function for PHD3 in metastasis and drug resistance and suggest opportunities to improve patient treatment by interfering with the feedforward signaling mechanisms activated by PHD3 silencing.Significance: This study links the oxygen sensor PHD3 to metastasis and drug resistance in cancer, with implications for therapeutic improvement by targeting this system. Cancer Res; 78(7); 1805-19. ©2018 AACR.
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Affiliation(s)
- Higinio Dopeso
- Institute of Neuropathology, University of Giessen, Giessen, Germany
| | - Hui-Ke Jiao
- Institute of Neuropathology, University of Giessen, Giessen, Germany
| | - Angel M Cuesta
- Institute of Cell Biology and Neuroscience and Buchmann Institute for Molecular Life Sciences (BMLS), University of Frankfurt, Frankfurt am Main, Germany.,Focus Program Translational Neurosciences (FTN), University of Mainz, Mainz, Germany
| | - Anne-Theres Henze
- Institute of Neuropathology, University of Giessen, Giessen, Germany
| | - Liane Jurida
- Rudolf-Buchheim-Institute of Pharmacology, University of Giessen, Giessen, Germany
| | - Michael Kracht
- Rudolf-Buchheim-Institute of Pharmacology, University of Giessen, Giessen, Germany
| | - Amparo Acker-Palmer
- Institute of Cell Biology and Neuroscience and Buchmann Institute for Molecular Life Sciences (BMLS), University of Frankfurt, Frankfurt am Main, Germany.,Focus Program Translational Neurosciences (FTN), University of Mainz, Mainz, Germany
| | - Boyan K Garvalov
- Institute of Neuropathology, University of Giessen, Giessen, Germany.
| | - Till Acker
- Institute of Neuropathology, University of Giessen, Giessen, Germany.
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172
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You K, Yi Y, Kwak SJ, Seong YS. Inhibition of RPTOR overcomes resistance to EGFR inhibition in triple-negative breast cancer cells. Int J Oncol 2018; 52:828-840. [DOI: 10.3892/ijo.2018.4244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 01/08/2018] [Indexed: 11/06/2022] Open
Affiliation(s)
- Kyu You
- Graduate School of Convergence Medical Science, Dankook University, Cheonan 31116, Republic of Korea
| | - Yong Yi
- ExoCoBio Inc, Seoul 08594, Republic of Korea
| | - Sahng-June Kwak
- Department of Biochemistry, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea
| | - Yeon-Sun Seong
- Graduate School of Convergence Medical Science, Dankook University, Cheonan 31116, Republic of Korea
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173
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Li J, Yan H, Zhao L, Jia W, Yang H, Liu L, Zhou X, Miao P, Sun X, Song S, Zhao X, Liu J, Huang G. Inhibition of SREBP increases gefitinib sensitivity in non-small cell lung cancer cells. Oncotarget 2018; 7:52392-52403. [PMID: 27447558 PMCID: PMC5239560 DOI: 10.18632/oncotarget.10721] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 06/29/2016] [Indexed: 12/24/2022] Open
Abstract
The clinical success of EGFR inhibitors in patients with lung cancer is limited by the inevitable development of treatment resistance. Here, we show that inhibition of SREBP increase gefitinib sensitivity in vitro and in vivo. Interference of SREBP1 binding partner MARVELD1 potentiate the therapeutic effect of gefitinib as well. Mechanistically, SREBP inhibition decreases the cell membrane fluidity, results in a decreased tyrosine phosphorylation of EGFR. Therefore, targeting lipid metabolism combined with EGFR-TKIs is potentially a novel therapeutic strategies for cancer treatment.
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Affiliation(s)
- Jiajin Li
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Hui Yan
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Li Zhao
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wenzhi Jia
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Hao Yang
- Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine & Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200025, China
| | - Liu Liu
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Xiang Zhou
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Ping Miao
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Xiaoguang Sun
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shaoli Song
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Xiaoping Zhao
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Gang Huang
- Department of Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine & Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200025, China.,Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
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174
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Braig F, Voigtlaender M, Schieferdecker A, Busch CJ, Laban S, Grob T, Kriegs M, Knecht R, Bokemeyer C, Binder M. Liquid biopsy monitoring uncovers acquired RAS-mediated resistance to cetuximab in a substantial proportion of patients with head and neck squamous cell carcinoma. Oncotarget 2018; 7:42988-42995. [PMID: 27119512 PMCID: PMC5190002 DOI: 10.18632/oncotarget.8943] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 03/29/2016] [Indexed: 11/30/2022] Open
Abstract
Resistance to epidermal growth factor receptor (EGFR)-targeted therapy is insufficiently understood in head and neck squamous cell carcinoma (HNSCC), entailing the lack of predictive biomarkers. Here, we studied resistance-mediating EGFR ectodomain and activating RAS mutations by next-generation sequencing (NGS) of cell lines and tumor tissue of cetuximab-naïve patients (46 cases, 12 cell lines), as well as liquid biopsies taken during and after cetuximab/platinum/5-fluorouracil treatment (20 cases). Tumors of cetuximab-naïve patients were unmutated, except for HRAS mutations in 4.3% of patients. Liquid biopsies revealed acquired KRAS, NRAS or HRAS mutations in more than one third of patients after cetuximab exposure. 46% of patients with on-treatment disease progression showed acquired RAS mutations, while no RAS mutations were found in the non-progressive subset of patients, indicating that acquisition of RAS mutant clones correlated significantly with clinical resistance (Chi square p=0.032). The emergence of mutations preceded clinical progression in half of the patients, with a maximum time from mutation detection to clinical progression of 16 weeks. RAS mutations account for acquired resistance to EGFR-targeting in a substantial proportion of HNSCC patients, even though these tumors are rarely mutated at baseline. Liquid biopsies may be used for mutational monitoring to guide treatment decisions.
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Affiliation(s)
- Friederike Braig
- Department of Oncology and Hematology with Sections Bone Marrow Transplant and Pneumology, Hubertus Wald Tumorzentrum / University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Minna Voigtlaender
- Department of Oncology and Hematology with Sections Bone Marrow Transplant and Pneumology, Hubertus Wald Tumorzentrum / University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Aneta Schieferdecker
- Department of Oncology and Hematology with Sections Bone Marrow Transplant and Pneumology, Hubertus Wald Tumorzentrum / University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Chia-Jung Busch
- Department of Otorhinolaryngology, Head and Neck Cancer Center of The University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Simon Laban
- Department of Otorhinolaryngology, Head and Neck Cancer Center of The University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany.,Department of Otorhinolaryngology and Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany
| | - Tobias Grob
- Department of Pathology, University Medical Center Hamburg, Hamburg, Germany
| | - Malte Kriegs
- Laboratory for Radiobiology and Experimental Radiooncology, Head and Neck Cancer Center of The University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Rainald Knecht
- Department of Otorhinolaryngology, Head and Neck Cancer Center of The University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology and Hematology with Sections Bone Marrow Transplant and Pneumology, Hubertus Wald Tumorzentrum / University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
| | - Mascha Binder
- Department of Oncology and Hematology with Sections Bone Marrow Transplant and Pneumology, Hubertus Wald Tumorzentrum / University Cancer Center Hamburg, University Medical Center Hamburg, Hamburg, Germany
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175
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Cancer stem cell-like population is preferentially suppressed by EGFR-TKIs in EGFR-mutated PC-9 tumor models. Exp Cell Res 2018; 362:195-202. [DOI: 10.1016/j.yexcr.2017.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 01/28/2023]
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176
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Sun C, Han C, Jiang Y, Han N, Zhang M, Li G, Qiao Q. Inhibition of GRP78 abrogates radioresistance in oropharyngeal carcinoma cells after EGFR inhibition by cetuximab. PLoS One 2017; 12:e0188932. [PMID: 29232380 PMCID: PMC5726659 DOI: 10.1371/journal.pone.0188932] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 11/15/2017] [Indexed: 01/24/2023] Open
Abstract
The EGFR-specific mAb cetuximab is one of the most effective treatments for oropharyngeal carcinoma, while patient responses to EGFR inhibitors given alone are modest. Combination treatment with radiation can improve the efficacy of treatment through increasing radiosensitivity, while resistance to radiation after administration of cetuximab limits its efficiency. Radiation and drugs can damage the endoplasmic reticulum (ER) homeostatic state and result in ER stress (ERS), subsequently causing resistance to radiation and drugs. Whether the ERS pathway is involved in radioresistance after administration of cetuximab has not been reported. Herein, we show that cetuximab could increase the radiosensitivity of FaDu cells but not Detroit562 cells. In addition, cetuximab inhibited the radiation-induced activation of the ERS signalling pathway IRE1α/ATF6-GRP78 in FaDu cells, while this effect was absent in Detroit562 cells. Silencing GRP78 increased the radiosensitivity of oropharyngeal carcinoma cells and inhibited radiation-induced DNA double-strand-break (DSB) repair and autophagy. More interestingly, silencing GRP78 abrogated resistance to cetuximab and radiation in Detroit562 cells and had a synergistic effect with cetuximab in increasing the radiosensitivity of FaDu cells. Immunohistochemistry showed that overexpression of both GRP78 and EGFR was associated with a poor prognosis in oropharyngeal carcinoma patients (P<0.05). Overall, the results of this study show that radioresistance after EGFR inhibition by cetuximab is mediated by the ERS signalling pathway IRE1α/ATF6-GRP78. This suppression was consequently unable to inhibit radiation-induced DSB repair and autophagy in oropharyngeal carcinoma cells, which conferred resistance to radiotherapy and cetuximab. These results suggest that the cooperative effects of radiotherapy and cetuximab could be further improved by inhibiting GRP78 in non-responsive oropharyngeal carcinoma patients.
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Affiliation(s)
- Chaonan Sun
- Department of Radiotherapy, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Chuyang Han
- Department of Radiotherapy, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yuanjun Jiang
- Department of Urology, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ning Han
- Department of Radiotherapy, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Miao Zhang
- Department of Radiotherapy, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Guang Li
- Department of Radiotherapy, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qiao Qiao
- Department of Radiotherapy, the First Hospital of China Medical University, Shenyang, Liaoning, China
- * E-mail:
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177
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Wang X, Chen K, Yu Y, Xiang Y, Kim JH, Gong W, Huang J, Shi G, Li Q, Zhou M, Sayers T, Tewary P, Gao B, Wang JM. Metformin sensitizes lung cancer cells to treatment by the tyrosine kinase inhibitor erlotinib. Oncotarget 2017; 8:109068-109078. [PMID: 29312591 PMCID: PMC5752504 DOI: 10.18632/oncotarget.22596] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 08/21/2017] [Indexed: 02/05/2023] Open
Abstract
Lung cancer is one of the deadliest malignant tumors with limited treatment options. Although targeted therapy, using tyrosine-kinase inhibitors such as erlotinib (Erlo), has shown therapeutic benefit, only 15 % patients with mutated epidermal growth factor receptor (EGFR) in lung cancer cells are sensitive. Therefore, additional therapeutic strategy should be developed. In this study, we found that metformin (Met), which is widely used for the treatment of type 2 diabetes (T2D), sensitized lung cancer cells bearing wild-type EGFR to Erlo treatment by enriching cancer cells expressing higher levels of EGFR with persistent phosphorylation. As a consequence, combination of Met and Erlo more efficiently inhibited the growth of lung cancer cells both in vitro and in mice with xenografted tumors. Our results suggest a novel approach to treating lung cancer cases which are originally resistant to Erlo.
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Affiliation(s)
- Xiaofei Wang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Keqiang Chen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Ying Yu
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
- Eye Institute, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yi Xiang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Jae Hong Kim
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Wanghua Gong
- Basic Research Program, Leidos Biomedical Research, Inc., Frederick, MD 21702, USA
| | - Jiaqiang Huang
- College of Life Sciences and Bioengineering, School of Sciences, Beijing Jiaoton University, Beijing 100044, China
| | - Guochao Shi
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Qingyun Li
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Min Zhou
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Thomas Sayers
- Basic Research Program, Leidos Biomedical Research, Inc., Frederick, MD 21702, USA
| | - Poonam Tewary
- Basic Research Program, Leidos Biomedical Research, Inc., Frederick, MD 21702, USA
| | - Beili Gao
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Ji Ming Wang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
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178
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Petersen I, Dietel M, Geilenkeuser WJ, Mireskandari M, Weichert W, Steiger K, Scheel AH, Büttner R, Schirmacher P, Warth A, Lasitschka F, Schildhaus HU, Kirchner T, Reu S, Kreipe H, Länger F, Tiemann M, Schulte C, Jöhrens K. EGFR immunohistochemistry as biomarker for antibody-based therapy of squamous NSCLC – Experience from the first ring trial of the German Quality Assurance Initiative for Pathology (QuIP ® ). Pathol Res Pract 2017; 213:1530-1535. [DOI: 10.1016/j.prp.2017.09.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 09/16/2017] [Accepted: 09/16/2017] [Indexed: 10/18/2022]
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179
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Mamdani H, Ahmed S, Armstrong S, Mok T, Jalal SI. Blood-based tumor biomarkers in lung cancer for detection and treatment. Transl Lung Cancer Res 2017; 6:648-660. [PMID: 29218268 DOI: 10.21037/tlcr.2017.09.03] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The therapeutic landscape of lung cancer has expanded significantly over the past decade. Advancements in molecularly targeted therapies, strategies to discover and treat resistance mutations, and development of personalized cancer treatments in the context of tumor heterogeneity and dynamic tumor biology have made it imperative to obtain tumor samples on several different occasions through the course of patient treatment. While this approach is critical to the delivery of optimal cancer treatment, it is fraught with a number of barriers including the need for invasive procedures with associated complications, access to limited amount of tissue, logistical delays in obtaining the biopsy, high healthcare cost, and in many cases inability to obtain tissue because of technically difficult location of the tumor. Given multiple limitations of obtaining tissue samples, the use of blood-based biomarkers ("liquid biopsies") may enable earlier diagnosis of cancer, lower costs by avoiding complex invasive procedures, tailoring molecular targeted treatments, improving patient convenience, and ultimately supplement clinical oncologic decision-making. In this paper, we review various blood-based biomarkers including circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), tumor derived exosomes, tumor educated platelets (TEPs), and microRNA; and highlight current evidence for their use in detection and treatment of lung cancer.
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Affiliation(s)
- Hirva Mamdani
- Department of Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI, USA
| | - Shahid Ahmed
- Division of Hematology/Oncology, Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN, USA
| | - Samantha Armstrong
- Internal Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tony Mok
- Department of Clinical Oncology, Chinese University of Hong Kong, Hong Kong, China
| | - Shadia I Jalal
- Division of Hematology/Oncology, Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN, USA
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180
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Da Silva CG, Peters GJ, Ossendorp F, Cruz LJ. The potential of multi-compound nanoparticles to bypass drug resistance in cancer. Cancer Chemother Pharmacol 2017; 80:881-894. [PMID: 28887666 PMCID: PMC5676819 DOI: 10.1007/s00280-017-3427-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 08/29/2017] [Indexed: 01/28/2023]
Abstract
PURPOSE The therapeutic efficacy of conventional chemotherapy against several solid tumors is generally limited and this is often due to the development of resistance or poor delivery of the drugs to the tumor. Mechanisms of resistance may vary between cancer types. However, with current development of genetic analyses, imaging, and novel delivery systems, we may be able to characterize and bypass resistance, e.g., by inhibition of the right target at the tumor site. Therefore, combined drug treatments, where one drug will revert or obstruct the development of resistance and the other will concurrently kill the cancer cell, are rational solutions. However, drug exposure of one drug will defer greatly from the other due to their physicochemical properties. In this sense, multi-compound nanoparticles are an excellent modality to equalize drug exposure, i.e., one common physicochemical profile. In this review, we will discuss novel approaches that employ nanoparticle technology that addresses specific mechanisms of resistance in cancer. METHODS The PubMed literature was consulted and reviewed. RESULTS Nanoparticle technology is emerging as a dexterous solution that may address several forms of resistance in cancer. For instance, we discuss advances that address mechanisms of resistance with multi-compound nanoparticles which co-deliver chemotherapeutics with an anti-resistance agent. Promising anti-resistance agents are (1) targeted in vivo gene silencing methods aimed to disrupt key resistance gene expression or (2) protein kinase inhibitors to disrupt key resistance pathways or (3) efflux pumps inhibitors to limit drug cellular efflux.
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Affiliation(s)
- C G Da Silva
- Translational Nanobiomaterials and Imaging, Department of Radiology, Bldg.1, C2-187h, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Godefridus J Peters
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - Ferry Ossendorp
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, Leiden, The Netherlands
| | - Luis J Cruz
- Translational Nanobiomaterials and Imaging, Department of Radiology, Bldg.1, C2-187h, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
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181
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Abstract
Breast cancer affects approximately 1 in 8 women, and it is estimated that over 246,660 women in the USA will be diagnosed with breast cancer in 2016. Breast cancer mortality has decline over the last two decades due to early detection and improved treatment. Over the last few years, there is mounting evidence to demonstrate the prominent role of receptor tyrosine kinases (RTKs) in tumor initiation and progression, and targeted therapies against the RTKs have been developed, evaluated in clinical trials, and approved for many cancer types, including breast cancer. However, not all breast cancers are the same as evidenced by the multiple subtypes of the disease, with some more aggressive than others, showing differential treatment response to different types of drugs. Moreover, in addition to canonical signaling from the cell surface, many RTKs can be trafficked to various subcellular compartments, e.g., the multivesicular body and nucleus, where they carry out critical cellular functions, such as cell proliferation, DNA replication and repair, and therapeutic resistance. In this review, we provide a brief summary on the role of a selected number of RTKs in breast cancer and describe some mechanisms of resistance to targeted therapies.
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Affiliation(s)
- Jennifer L Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA.,Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, 404, Taiwan.,Department of Biotechnology, Asia University, Taichung, 413, Taiwan
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA. .,Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, 404, Taiwan. .,Department of Biotechnology, Asia University, Taichung, 413, Taiwan.
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182
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The incidence and management of cutaneous adverse events of the epidermal growth factor receptor inhibitors. Postepy Dermatol Alergol 2017; 34:418-428. [PMID: 29507555 PMCID: PMC5831275 DOI: 10.5114/ada.2017.71106] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 06/27/2016] [Indexed: 01/04/2023] Open
Abstract
Overexpression of the epidermal growth factor receptor (EGFR) is found in many cancers, including those of the head and neck area, non-small-cell lung cancer, and colorectal, cervical, prostate, breast, ovary, stomach, and pancreatic cancer. The EGFR inhibitors are used at present in the treatment of such cancers. Skin lesions that develop during and after cancer treatment may be due to specific cytostatics, molecular-targeted drugs, radiation therapy, complementary therapy, or the cancer itself, and hence knowledge is essential to distinguish between them. The mechanism through which skin toxicity arises during treatment with EGFR inhibitors is not well known, but seems to be due to the modification of the RAS/RAF/MEK/ERK signal path associated with its activation, which results in the similarity between the adverse effects of EGFR inhibitors and the treatment of melanoma with BRAF and MEK inhibitors. The most common side effects are pruritus, xerosis, papulopustular rash, hand-foot skin reaction, alopecia and dystrophy of the hair, and paronychia. This work presents options for prevention and suggestions for managing these adverse events, which are of importance in the care of patients undergoing oncological treatment.
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183
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Pearson HE, Iida M, Orbuch RA, McDaniel NK, Nickel KP, Kimple RJ, Arbiser JL, Wheeler DL. Overcoming Resistance to Cetuximab with Honokiol, A Small-Molecule Polyphenol. Mol Cancer Ther 2017; 17:204-214. [PMID: 29054984 DOI: 10.1158/1535-7163.mct-17-0384] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 08/22/2017] [Accepted: 09/29/2017] [Indexed: 11/16/2022]
Abstract
Overexpression and activation of the EGFR have been linked to poor prognosis in several human cancers. Cetuximab is a mAb against EGFR that is used for the treatment in head and neck squamous cell carcinoma (HNSCC) and metastatic colorectal cancer. Unfortunately, most tumors have intrinsic or will acquire resistance to cetuximab during the course of therapy. Honokiol is a natural compound found in the bark and leaves of the Chinese Magnolia tree and is established to have several anticancer properties without appreciable toxicity. In this study, we hypothesized that combining cetuximab and honokiol treatments could overcome acquired resistance to cetuximab. We previously developed a model of acquired resistance to cetuximab in non-small cell lung cancer H226 cell line. Treatment of cetuximab-resistant clones with honokiol and cetuximab resulted in a robust antiproliferative response. Immunoblot analysis revealed the HER family and their signaling pathways were downregulated after combination treatment, most notably the proliferation (MAPK) and survival (AKT) pathways. In addition, we found a decrease in phosphorylation of DRP1 and reactive oxygen species after combination treatment in cetuximab-resistant clones, which may signify a change in mitochondrial function. Furthermore, we utilized cetuximab-resistant HNSCC patient-derived xenografts (PDX) to test the benefit of combinatorial treatment in vivo There was significant growth delay in PDX tumors after combination treatment with a subsequent downregulation of active MAPK, AKT, and DRP1 signaling as seen in vitro Collectively, these data suggest that honokiol is a promising natural compound in overcoming acquired resistance to cetuximab. Mol Cancer Ther; 17(1); 204-14. ©2017 AACR.
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Affiliation(s)
- Hannah E Pearson
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin
| | - Mari Iida
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin
| | - Rachel A Orbuch
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin
| | - Nellie K McDaniel
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin
| | - Kwangok P Nickel
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin
| | - Randall J Kimple
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin
| | - Jack L Arbiser
- Department of Dermatology, Emory University School of Medicine, Winship Cancer Institute, Atlanta, Georgia.,Veterans Affairs Medical Center, Decatur, Georgia
| | - Deric L Wheeler
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Wisconsin Institute for Medical Research, Madison, Wisconsin.
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184
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Duran A, Valero N, Mosquera J, Fuenmayor E, Alvarez-Mon M. Gefitinib and pyrrolidine dithiocarbamate decrease viral replication and cytokine production in dengue virus infected human monocyte cultures. Life Sci 2017; 191:180-185. [PMID: 29055802 DOI: 10.1016/j.lfs.2017.10.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/07/2017] [Accepted: 10/17/2017] [Indexed: 02/06/2023]
Abstract
AIMS The epidermal growth factor receptor (EGFR) and nucleotide-binding and oligomerization-domain containing 2 (NOD2) are important in cancer and in microbial recognition, respectively. These molecules trigger intracellular signaling pathways inducing the expression of inflammatory genes by NF-kB translocation. Gefitinib (GBTC) and pyrrolidine dithiocarbamate (PDTC) are capable of inhibiting EGFR/NOD2 and NF-kB, respectively. In earlier stages of dengue virus (DENV) infection, monocytes are capable of sustaining viral replication and increasing cytokine production, suggesting that monocyte/macrophages play an important role in early DENV replication. GBTC and PDTC have not been used to modify the pathogenesis of DENV in infected cells. This study was aimed to determine the effect of GBTC and PDTC on viral replication and cytokine production in DENV serotype 2 (DENV2)-infected human monocyte cultures. MAIN METHODS GBTC and PDTC were used to inhibit EGFR/NOD2 and NF-kB, respectively. Cytokine production was measured by ELISA and viral replication by plaque forming unit assay. KEY FINDINGS Increased DENV2 replication and anti-viral cytokine production (IFN-α/β, TNF-α, IL-12 and IL-18) in infected cultures were found. These parameters were decreased after EGFR/NOD2 or NF-kB inhibitions. SIGNIFICANCE The inhibitory effects of GBTC and PDTC on viral replication and cytokine production can be beneficial in the treatment of patients infected by dengue and suggest a possible role of EGFR/NOD2 receptors and NF-kB in dengue pathogenesis.
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Affiliation(s)
- Anyelo Duran
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Cátedra de Bioquímica General, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Sociedad Venezolana de Microbiología, Venezuela
| | - Nereida Valero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Sociedad Venezolana de Microbiología, Venezuela
| | - Jesús Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| | - Edgard Fuenmayor
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Melchor Alvarez-Mon
- Servicio de Enfermedades del Sistema Inmune y Oncología, Hospital Universitario "Príncipe de Asturias", Universidad de Alcalá, Madrid, Spain
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185
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Na F, Zhang J, Deng L, Zhou X, Zhou L, Zou B, Yu M, Li Y, Xue J, Liu Y. Continuation of Tyrosine Kinase Inhibitor is Associated with Survival Benefit in NSCLC Patients with Exon 19 Deletion after Solitary Progression. J Cancer 2017; 8:3682-3688. [PMID: 29151955 PMCID: PMC5688921 DOI: 10.7150/jca.20017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/04/2017] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION The benefit and selection criteria of continuing tyrosine kinase inhibitor (TKI) after secondary resistance in non-small cell lung cancers (NSCLCs) with epidermal growth factor receptor (EGFR) mutation remain largely unknown. This study was designed to investigate the role and predictive factors of TKI continuation in patients with solitary progression. METHODS We retrospectively analyzed NSCLCs treated with first generation of TKI from June 2009 to October 2014 in our cancer center. Number of progressive lesions upon first progression was recorded per RECIST v1.1. RESULTS Sixty-one of 144 (42.4%) patients progressed with one lesion. Postprogression TKI use information was available in 58 patients. No brain metastases and stable disease compared to immediate prior scans were associated continued TKI. In the whole cohort, TKI as the first line treatment was found to be associated with longer postprogression survival, but TKI continuation was not. In patients with exon 19 deletion, TKI continuation compared to discontinuation was significantly associated with longer postprogression survival (32.0 months, 95% CI: 20.8 - 43.3 vs. 15.6 months, 95% CI: 7.3 - 23.8, p=0.013). This difference was not observed in L858R mutation. Exon 19 deletion patients had longer time to TKI cessation after progression (13.7 months, 95% CI: 4.5-22.9 vs. 5.6 months in L858R, 95% CI: 0.0-11.9, p = 0.047). CONCLUSIONS TKI continuation may prolong survival of NSCLCs with exon 19 deletion rather than L858R. Further studies are required to validate this finding.
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Affiliation(s)
- Feifei Na
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
- Huaxi Student Society of Oncology Research, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
- Department of Thoracic Cancer, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, West China School of Medicine, Sichuan University and Collaborative Innovation Center, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Jie Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd, Yuzhongqu, Chongqing, China, 400016
- Department of Medical Oncology, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Lei Deng
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
- Huaxi Student Society of Oncology Research, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
- Department of Thoracic Cancer, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, West China School of Medicine, Sichuan University and Collaborative Innovation Center, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Xiaojuan Zhou
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Lin Zhou
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Bingwen Zou
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Min Yu
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Yanying Li
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Jianxin Xue
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
| | - Yongmei Liu
- Department of Thoracic Cancer, Cancer Center, West China Hospital, West China School of Medicine, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan, China, 610041
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186
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Zhou Q, Guo X, Choksi R. Activation of Focal Adhesion Kinase and Src Mediates Acquired Sorafenib Resistance in A549 Human Lung Adenocarcinoma Xenografts. J Pharmacol Exp Ther 2017; 363:428-443. [PMID: 29021381 DOI: 10.1124/jpet.117.240507] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 10/02/2017] [Indexed: 01/07/2023] Open
Abstract
Despite encouraging clinical results with sorafenib monotherapy in patients with KRAS-mutant non-small-cell lung cancer (NSCLC), the overall survival benefit of this drug is limited by the inevitable development of acquired resistance. The exact mechanism underlying acquired sorafenib resistance in KRAS-mutant NSCLC is unclear. In this study, the mechanism of acquired sorafenib resistance was explored using a biologically relevant xenograft model, which was established by using the A549 human lung adenocarcinoma cell line and an in vivo-derived, sorafenib-resistant A549 subline (A549/SRFres). Results from the initial study demonstrated that sorafenib treatment significantly decreased E-cadherin (P < 0.05) levels but significantly increased matrix metallopeptidase 9 (MMP9) levels (P < 0.01) in A549/SRFres tumors, whereas expression levels of phospho-protein kinase B (AKT), phospho-focal adhesion kinase (FAK), and phospho-Src were elevated in sorafenib-treated A549 and A549/SRFres tumors. We next examined whether concomitant dasatinib treatment could overcome acquired sorafenib resistance by blocking the FAK/Src escape route that mediates resistance. Despite the observed in vitro synergy between sorafenib and dasatinib, the in vivo antitumor effect of half-dose sorafenib-dasatinib combination therapy was inferior to that of the full-dose sorafenib treatment. Although the sorafenib-dasatinib combination effectively inhibited Src and AKT phosphorylation, it did not block the Y576/577-FAK phosphorylation, nor did it decrease vimentin protein expression; unexpectedly, it increased Y397-FAK phosphorylation and MMP9 protein expression in tumors. These results suggest that acquired sorafenib resistance in KRAS-mutant A549 xenografts involves the compensatory activation of FAK and Src, and Src inhibition alone is insufficient to diminish sorafenib-promoted epithelial-mesenchymal transition process and invasive potentials in tumors.
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Affiliation(s)
- Qingyu Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida
| | - Xiaofang Guo
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida
| | - Riya Choksi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida
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187
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Dykes SS, Steffan JJ, Cardelli JA. Lysosome trafficking is necessary for EGF-driven invasion and is regulated by p38 MAPK and Na+/H+ exchangers. BMC Cancer 2017; 17:672. [PMID: 28978320 PMCID: PMC5628462 DOI: 10.1186/s12885-017-3660-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 09/27/2017] [Indexed: 12/27/2022] Open
Abstract
Background Tumor invasion through a basement membrane is one of the earliest steps in metastasis, and growth factors, such as Epidermal Growth Factor (EGF) and Hepatocyte Growth Factor (HGF), stimulate this process in a majority of solid tumors. Basement membrane breakdown is one of the hallmarks of invasion; therefore, tumor cells secrete a variety of proteases to aid in this process, including lysosomal proteases. Previous studies demonstrated that peripheral lysosome distribution coincides with the release of lysosomal cathepsins. Methods Immunofluorescence microscopy, western blot, and 2D and 3D cell culture techniques were performed to evaluate the effects of EGF on lysosome trafficking and cell motility and invasion. Results EGF-mediated lysosome trafficking, protease secretion, and invasion is regulated by the activity of p38 mitogen activated protein kinase (MAPK) and sodium hydrogen exchangers (NHEs). Interestingly, EGF stimulates anterograde lysosome trafficking through a different mechanism than previously reported for HGF, suggesting that there are redundant signaling pathways that control lysosome positioning and trafficking in tumor cells. Conclusions These data suggest that EGF stimulation induces peripheral (anterograde) lysosome trafficking, which is critical for EGF-mediated invasion and protease release, through the activation of p38 MAPK and NHEs. Taken together, this report demonstrates that anterograde lysosome trafficking is necessary for EGF-mediated tumor invasion and begins to characterize the molecular mechanisms required for EGF-stimulated lysosome trafficking. Electronic supplementary material The online version of this article (10.1186/s12885-017-3660-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Samantha S Dykes
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center - Shreveport, Shreveport, LA, 71130, USA.,Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center- Shreveport, Shreveport, LA, 71130, USA.,Present Address: Department of Radiation Oncology, University of Florida, Gainesville, FL, 32608, USA
| | - Joshua J Steffan
- Department of Natural Sciences, Dickinson State University, 291 Campus Dr, Dickinson, ND, 58601, USA.
| | - James A Cardelli
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center - Shreveport, Shreveport, LA, 71130, USA.,Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center- Shreveport, Shreveport, LA, 71130, USA
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188
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Shao J, Zheng G, Chen H, Liu J, Xu A, Chen F, Li T, Lu Y, Xu J, Zheng N, Jia L. Metapristone (RU486 metabolite) suppresses NSCLC by targeting EGFR-mediated PI3K/AKT pathway. Oncotarget 2017; 8:78351-78364. [PMID: 29108234 PMCID: PMC5667967 DOI: 10.18632/oncotarget.18640] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 05/22/2017] [Indexed: 12/22/2022] Open
Abstract
Therapies targeting epidermal growth factor receptor (EGFR) can effectively treat with non-small cell lung cancer (NSCLC), but NSCLC's drug resistance makes it intractable. Herein, we showed that RU486 metabolite metapristone inhibited the proliferation of various NSCLC cell lines with either wild (A549, H1299, H520) or mutated EGFR (H1975, HCC827). The suppression was resulted from inhibition by metapristone of EGFR signaling pathways through down-regulating the EGFR, PTEN, as well as AKT and ERK proteins. In addition, metapristone inhibited anti-apoptotic marker Bcl-2, and activated pro-apoptotic key signaling proteins caspase-3, and poly (ADP-ribose) polymerase. Metapristone induced A549 and H1975 cell cycle via arrest at the G0-G1 stage. What's more, metapristone inhibited the growth of NSCLC xenografts in BALB/c nude mice through decreasing the expression of tumor growth biomarkers PCNA and EGFR. Taken together, the present study demonstrated that metapristone suppressed NSCLC proliferation by promoting apoptosis via decrease the cellular EGFR-mediated PI3K/AKT pathways. The results suggest metapristone a new treatment for EGFR-overexpressed NSCLC.
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Affiliation(s)
- Jingwei Shao
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Guirong Zheng
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Hongning Chen
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Jian Liu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Aixiao Xu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Fan Chen
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Tao Li
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Yusheng Lu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Jianguo Xu
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Ning Zheng
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
| | - Lee Jia
- Cancer Metastasis Alert and Prevention Center, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou 350002, China
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189
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Huang S, Han Y, Chen M, Hu K, Qi Y, Sun P, Wang M, Wu H, Li G, Wang Q, Du Z, Zhang K, Zhao S, Zheng X. Radiosynthesis and biological evaluation of 18F-labeled 4-anilinoquinazoline derivative ( 18F-FEA-Erlotinib) as a potential EGFR PET agent. Bioorg Med Chem Lett 2017; 28:1143-1148. [PMID: 29486966 DOI: 10.1016/j.bmcl.2017.08.066] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/18/2017] [Accepted: 08/25/2017] [Indexed: 12/19/2022]
Abstract
Epidermal growth factor receptor (EGFR) has gained significant attention as a therapeutic target. Several EGFR targeting drugs (Gefitinib and Erlotinib) have been approved by US Food and Drug Administration (FDA) and have received high approval in clinical treatment. Nevertheless, the curative effect of these medicines varied in many solid tumors because of the different levels of expression and mutations of EGFR. Therefore, several PET radiotracers have been developed for the selective treatment of responsive patients who undergo PET/CT imaging for tyrosine kinase inhibitor (TKI) therapy. In this study, a novel fluorine-18 labeled 4-anilinoquinazoline based PET tracer, 1N-(3-(1-(2-18F-fluoroethyl)-1H-1,2,3-triazol-4-yl)phenyl)-6,7-bis(2-methoxyethoxy)quinazolin-4-amine (18F-FEA-Erlotinib), was synthesized and biological evaluation was performed in vitro and in vivo. 18F-FEA-Erlotinib was achieved within 50min with over 88% radiochemical yield (decay corrected RCY), an average specific activity over 50GBq/μmol, and over 99% radiochemical purity. In vitro stability study showed no decomposition of 18F-FEA-Erlotinib after incubated in PBS and FBS for 2h. Cellular uptake and efflux experiment results indicated the specific binding of 18F-FEA-Erlotinib to HCC827 cell line with EGFR exon 19 deletions. In vivo, Biodistribution studies revealed that 18F-FEA-Erlotinib exhibited rapid blood clearance both through hepatobiliary and renal excretion. The tumor uptake of 18F-FEA-Erlotinib in HepG2, HCC827, and A431 tumor xenografts, with different EGFR expression and mutations, was visualized in PET images. Our results demonstrate the feasibility of using 18F-FEA-Erlotinib as a PET tracer for screening EGFR TKIs sensitive patients.
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Affiliation(s)
- Shun Huang
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China; Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yanjiang Han
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Min Chen
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Kongzhen Hu
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yongshuai Qi
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Penghui Sun
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Men Wang
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Hubing Wu
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Guiping Li
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Quanshi Wang
- Nanfang PET Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Zhiyun Du
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Kun Zhang
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China; Department of Chemical and Environmental Engineering, Wuyi University, Jiangmen, Guangdong 529020, China
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
| | - Xi Zheng
- Department of Pharmaceutical Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
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190
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Davidson MA, Shanks EJ. 3q26-29 Amplification in head and neck squamous cell carcinoma: a review of established and prospective oncogenes. FEBS J 2017; 284:2705-2731. [PMID: 28317270 DOI: 10.1111/febs.14061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 02/23/2017] [Accepted: 03/15/2017] [Indexed: 12/22/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is significantly underrepresented in worldwide cancer research, yet survival rates for the disease have remained static for over 50 years. Distant metastasis is often present at the time of diagnosis, and is the primary cause of death in cancer patients. In the absence of routine effective targeted therapies, the standard of care treatment remains chemoradiation in combination with (often disfiguring) surgery. A defining characteristic of HNSCC is the amplification of a region of chromosome 3 (3q26-29), which is consistently associated with poorer patient outcome. This review provides an overview of the role the 3q26-29 region plays in HNSCC, in terms of both known and as yet undiscovered processes, which may have potential clinical relevance.
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191
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Li X, Cai W, Yang G, Su C, Ren S, Zhao C, Hu R, Chen X, Gao G, Guo Z, Li W, Zhou C, Hirsch FR. Comprehensive Analysis of EGFR-Mutant Abundance and Its Effect on Efficacy of EGFR TKIs in Advanced NSCLC with EGFR Mutations. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.06.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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192
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Yu W, Lu W, Chen G, Cheng F, Su H, Chen Y, Liu M, Pang X. Inhibition of histone deacetylases sensitizes EGF receptor-TK inhibitor-resistant non-small-cell lung cancer cells to erlotinib in vitro and in vivo. Br J Pharmacol 2017; 174:3608-3622. [PMID: 28749535 DOI: 10.1111/bph.13961] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 07/16/2017] [Accepted: 07/21/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Intrinsic and/or acquired resistance of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) commonly occurs in patients with non-small-cell lung cancer (NSCLC). Here, we developed a combined therapy of histone deacetylase inhibition by a novel HDAC inhibitor, YF454A, with erlotinib to overcome EGFR-TKI resistance in NSCLC. EXPERIMENTAL APPROACH The sensitization of the effects of erlotinib by YF454A was examined in a panel of EGFR-TKI-resistant NSCLC cell lines in vitro and two different erlotinib-resistant NSCLC xenograft mouse models in vivo. Western blotting and Affymetrix GeneChip expression analysis were further performed to determine the underlying mechanisms for the effects of the combination of erlotinib and YF454A. KEY RESULTS YF454A and erlotinib showed a strong synergy in the suppression of cell growth by blocking the cell cycle and triggering cell apoptosis in EGFR-TKI-resistant NSCLC cells. The combined treatment led to a significant decrease in tumour growth and tumour weight compared with single agents alone. Mechanistically, this combination therapy dramatically down-regulated the expression of several crucial EGFR-TKI resistance-related receptor tyrosine kinases, such as Her2, c-Met, IGF1R and AXL, at both the transcriptional and protein levels and consequently blocked the activation of downstream molecules Akt and ERK. Transcriptomic profiling analysis further revealed that YF454A and erlotinib synergistically suppressed the cell cycle pathway and decreased the transcription of cell-cycle related genes, such as MSH6 and MCM7. CONCLUSION AND IMPLICATIONS Our preclinical study of YF454A provides a rationale for combining erlotinib with a histone deacetylase inhibitor to treat NSCLC with EGFR-TKI resistance.
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Affiliation(s)
- Weiwei Yu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Weiqiang Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Guoliang Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Feixiong Cheng
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China.,Center for Cancer Systems Biology (CCSB), Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Hui Su
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Yihua Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.,Institute of Biosciences and Technology, Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, Houston, TX, USA
| | - Xiufeng Pang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
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193
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AP1G1 is involved in cetuximab-mediated downregulation of ASCT2-EGFR complex and sensitization of human head and neck squamous cell carcinoma cells to ROS-induced apoptosis. Cancer Lett 2017; 408:33-42. [PMID: 28823958 DOI: 10.1016/j.canlet.2017.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/07/2017] [Accepted: 08/09/2017] [Indexed: 12/12/2022]
Abstract
In this study, we expanded our recent work showing that ASCT2, a Na+-dependent neutral amino acid transporter that plays a major role in glutamine uptake in cancer cells, is physically associated with EGFR in human head and neck squamous cell carcinoma cells and in several other types of cancer cells. We found in our current study that ASCT2 can be downregulated by cetuximab, an approved anti-EGFR therapeutic antibody, via cetuximab-induced EGFR endocytosis independently of cetuximab-mediated inhibition of EGFR tyrosine kinase. We further found that ASCT2-EGFR association involves the adaptor-related protein complex 1 gamma 1 subunit (AP1G1), a subunit of clathrin-associated adaptor protein complex 1, which plays a role in membrane protein sorting in endosomes after receptor-mediated endocytosis. We found that AP1G1 is physically associated with both ASCT2 and EGFR and, together with those molecules, forms a heterotrimeric molecular complex. Knockdown of AP1G1 lowered the level of ASCT2-EGFR association, inhibited cetuximab-mediated internalization of ASCT2-EGFR complex, and decreased intracellular glutamine uptake and glutathione biosynthesis. These findings suggest a new therapeutic strategy to overcome cetuximab resistance in cancer cells through combination of cetuximab, which co-targets ASCT2 along with EGFR, with an ROS-inducing agent.
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194
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Yin N, Lepp A, Ji Y, Mortensen M, Hou S, Qi XM, Myers CR, Chen G. The K-Ras effector p38γ MAPK confers intrinsic resistance to tyrosine kinase inhibitors by stimulating EGFR transcription and EGFR dephosphorylation. J Biol Chem 2017; 292:15070-15079. [PMID: 28739874 DOI: 10.1074/jbc.m117.779488] [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] [Received: 02/01/2017] [Revised: 07/21/2017] [Indexed: 01/01/2023] Open
Abstract
Mutations in K-Ras and epidermal growth factor receptor (EGFR) are mutually exclusive, but it is not known how K-Ras activation inactivates EGFR, leading to resistance of cancer cells to anti-EGFR therapy. Here, we report that the K-Ras effector p38γ MAPK confers intrinsic resistance to small molecular tyrosine kinase inhibitors (TKIs) by concurrently stimulating EGFR gene transcription and protein dephosphorylation. We found that p38γ increases EGFR transcription by c-Jun-mediated promoter binding and stimulates EGFR dephosphorylation via activation of protein-tyrosine phosphatase H1 (PTPH1). Silencing the p38γ/c-Jun/PTPH1 signaling network increased sensitivities to TKIs in K-Ras mutant cells in which EGFR knockdown inhibited growth. Similar results were obtained with the p38γ-specific pharmacological inhibitor pirfenidone. These results indicate that in K-Ras mutant cancers, EGFR activity is regulated by the p38γ/c-Jun/PTPH1 signaling network, whose disruption may be a novel strategy to restore the sensitivity to TKIs.
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Affiliation(s)
- Ning Yin
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Adrienne Lepp
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Yongsheng Ji
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Matthew Mortensen
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Songwang Hou
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Xiao-Mei Qi
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Charles R Myers
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - Guan Chen
- From the Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and .,the Research Service, Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin 53295
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195
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Internalized CD44s splice isoform attenuates EGFR degradation by targeting Rab7A. Proc Natl Acad Sci U S A 2017; 114:8366-8371. [PMID: 28716909 DOI: 10.1073/pnas.1701289114] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
CD44 has been postulated as a cell surface coreceptor for augmenting receptor tyrosine kinase (RTK) signaling. However, how exactly CD44 triggers RTK-dependent signaling remained largely unclear. Here we report an unexpected mechanism by which the CD44s splice isoform is internalized into endosomes to attenuate EGFR degradation. We identify a CD44s-interacting small GTPase, Rab7A, and show that CD44s inhibits Rab7A-mediated EGFR trafficking to lysosomes and subsequent degradation. Importantly, CD44s levels correlate with EGFR signature and predict poor prognosis in glioblastomas. Because Rab7A facilitates trafficking of many RTKs to lysosomes, our findings identify CD44s as a Rab7A regulator to attenuate RTK degradation.
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196
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Okada Y, Kimura T, Nakagawa T, Okamoto K, Fukuya A, Goji T, Fujimoto S, Sogabe M, Miyamoto H, Muguruma N, Tsuji Y, Okahisa T, Takayama T. EGFR Downregulation after Anti-EGFR Therapy Predicts the Antitumor Effect in Colorectal Cancer. Mol Cancer Res 2017; 15:1445-1454. [PMID: 28698359 DOI: 10.1158/1541-7786.mcr-16-0383] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 05/18/2017] [Accepted: 07/06/2017] [Indexed: 11/16/2022]
Abstract
Anti-EGFR mAb is reported to induce EGFR internalization in colorectal cancer cells. However, the biological relevance of EGFR internalization with anti-EGFR mAb is unknown. Therefore, the relevance of EGFR downregulation with anti-EGFR mAb to antitumor activity in colorectal cancer cells was investigated. Quantification of EGFR on the cell surface before cetuximab treatment was assessed by flow cytometry, and its growth-inhibitory effects were measured by Trypan blue exclusion, in 10 RAS, BRAF wild-type colorectal cancer cell lines, but there was no significant correlation between EGFR number and its growth-inhibitory effect. However, a significant correlation existed between the percentage decrease in the number of EGFRs after cetuximab treatment and its growth-inhibitory effect in those cell lines. Treatment with TGFα, a ligand for EGFR, induced EGFR internalization in colorectal cancer cells, but most EGFRs subsequently recycled to the cell surface, consistent with previous studies. While cetuximab treatment induced EGFR internalization, most receptors subsequently translocated into the late endosome, leading to lysosomal degradation, as revealed by immunoblotting and double immunofluorescence. Cetuximab-sensitive colorectal cancer cells showed greater EGFR internalization, stronger cell growth inhibition, and more augmented apoptotic signals than nonsensitive cells. IHC for EGFR, performed using an EGFR pharmDx Kit (mouse anti-human EGFR mAb clone 2-18C9), in clinical specimens before and after anti-EGFR mAb therapy in 13 colorectal cancer patients showed a significant correlation between the response to anti-EGFR mAb and decreased staining after therapy.Implications: This report clearly demonstrates that anti-EGFR mAb facilitates internalization and subsequent degradation of EGFRs in lysosomes, which is an important determinant of the efficacy of anti-EGFR mAb treatment for colorectal cancer. Mol Cancer Res; 15(10); 1445-54. ©2017 AACR.
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Affiliation(s)
- Yasuyuki Okada
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tetsuo Kimura
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tadahiko Nakagawa
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koichi Okamoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akira Fukuya
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takahiro Goji
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Shota Fujimoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masahiro Sogabe
- Department of General Medicine and Community Health Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroshi Miyamoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Naoki Muguruma
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yasushi Tsuji
- Department of Medical Oncology, Tonan Hospital, Chuo-ku, Sapporo, Japan
| | - Toshiya Okahisa
- Department of General Medicine and Community Health Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
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197
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Potential mechanisms of CD133 in cancer stem cells. Life Sci 2017; 184:25-29. [PMID: 28697984 DOI: 10.1016/j.lfs.2017.07.008] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/03/2017] [Accepted: 07/07/2017] [Indexed: 12/14/2022]
Abstract
Cancer stem cells (CSCs) have emerged as an underlying cause of cancer relapse and resistance to treatment. Initially, biomarkers were used to identify and isolate distinct cell populations. Several CSC markers have been identified from many types of tumors, and these markers are also being used for isolation and enrichment of CSCs. Cluster of differentiation CD133 is a well-characterized CSC marker, and it is involved in tumor cell proliferation, metastasis, tumorigenesis, and recurrence, as well as chemo- and radio-resistance. However, the mechanisms involved in CD133-mediated induction of CSC properties have not yet been elucidated. Here, we introduce and summarize the functions of CD133 in CSCs and suggest new mechanisms that may be of note in our approach to developing novel cancer therapies.
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198
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Lee TG, Jeong EH, Min IJ, Kim SY, Kim HR, Kim CH. Altered expression of cellular proliferation, apoptosis and the cell cycle-related genes in lung cancer cells with acquired resistance to EGFR tyrosine kinase inhibitors. Oncol Lett 2017; 14:2191-2197. [PMID: 28781659 PMCID: PMC5530116 DOI: 10.3892/ol.2017.6428] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 03/03/2017] [Indexed: 01/04/2023] Open
Abstract
Non-small cell lung cancers harboring somatic gain-of-function mutations in the epidermal growth factor receptor (EGFR) tyrosine kinase domain respond well to treatment with EGFR tyrosine kinase inhibitors (TKIs) including gefitinib and erlotinib. However, all patients who experience a marked improvement with these drugs eventually develop disease progression due to the acquisition of drug resistance. Approximately half of the cases with acquired resistance to EGFR TKIs can be accounted for by a second-site mutation in exon 20 of the EGFR kinase domain (T790M). However, the changes of gene expression involved in EGFR TKI resistance due to the T790M mutation remain poorly defined. The present study established lung cancer cell lines that were resistant to gefitinib or erlotinib, and these cell lines were verified to contain the EGFR T790M mutation. The differential expression of genes associated with acquired resistance was verified in the present study by mRNA microarray analysis. Among the genes whose expression was significantly altered, genes whose expression was altered in gefitinib- and erlotinib-resistant cells were focused on. Notably, a total of 1,617 genes were identified as being differentially expressed in gefitinib- and erlotinib-resistant cells. Indeed, Gene ontology analysis revealed altered expression of genes involved in the regulation of cellular proliferation, apoptosis, and the cell cycle in EGFR TKI-resistant cells. The present results demonstrate distinctive gene expression patterns of EGFR TKI-resistant lung cancer cells with the EGFR T790M mutation. The present study can provide key insights into gene expression profiles involved in conferring resistance to EGFR TKI therapy in lung cancer cells.
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Affiliation(s)
- Tae-Gul Lee
- Division of Pulmonology, Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, Republic of Korea
| | - Eun-Hui Jeong
- Division of Pulmonology, Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, Republic of Korea.,University of Science and Technology (UST), Daejeon 305-350, Republic of Korea
| | - Il Jae Min
- Division of Pulmonology, Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, Republic of Korea
| | - Seo Yun Kim
- Division of Pulmonology, Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, Republic of Korea
| | - Hye-Ryoun Kim
- Division of Pulmonology, Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, Republic of Korea
| | - Cheol Hyeon Kim
- Division of Pulmonology, Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, Republic of Korea.,University of Science and Technology (UST), Daejeon 305-350, Republic of Korea
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199
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Keller S, Schmidt MHH. EGFR and EGFRvIII Promote Angiogenesis and Cell Invasion in Glioblastoma: Combination Therapies for an Effective Treatment. Int J Mol Sci 2017. [PMID: 28629170 PMCID: PMC5486116 DOI: 10.3390/ijms18061295] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) and the mutant EGFRvIII are major focal points in current concepts of targeted cancer therapy for glioblastoma multiforme (GBM), the most malignant primary brain tumor. The receptors participate in the key processes of tumor cell invasion and tumor-related angiogenesis and their upregulation correlates with the poor prognosis of glioma patients. Glioma cell invasion and increased angiogenesis share mechanisms of the degradation of the extracellular matrix (ECM) through upregulation of ECM-degrading proteases as well as the activation of aberrant signaling pathways. This review describes the role of EGFR and EGFRvIII in those mechanisms which might offer new combined therapeutic approaches targeting EGFR or EGFRvIII together with drug treatments against proteases of the ECM or downstream signaling to increase the inhibitory effects of mono-therapies.
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Affiliation(s)
- Stefanie Keller
- Molecular Signal Transduction Laboratories, Institute for Microscopic Anatomy and Neurobiology, Focus Program Translational Neuroscience (FTN), Rhine Mainz Neuroscience Network (rmn2), Johannes Gutenberg University, School of Medicine, 55131 Mainz, Germany.
| | - Mirko H H Schmidt
- Molecular Signal Transduction Laboratories, Institute for Microscopic Anatomy and Neurobiology, Focus Program Translational Neuroscience (FTN), Rhine Mainz Neuroscience Network (rmn2), Johannes Gutenberg University, School of Medicine, 55131 Mainz, Germany.
- German Cancer Consortium (DKTK), partner site Frankfurt/Mainz, 55131 Mainz, Germany.
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
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200
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Han W, Du Y. Recent Development of the Second and Third Generation Irreversible Epidermal Growth Factor Receptor Inhibitors. Chem Biodivers 2017; 14. [DOI: 10.1002/cbdv.201600372] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 01/10/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Weiwei Han
- School of Chemistry and Pharmaceutical Engineering; Qilu University of Technology; 3501 Daxue Road Jinan 250353 P. R. China
| | - Yongli Du
- School of Chemistry and Pharmaceutical Engineering; Qilu University of Technology; 3501 Daxue Road Jinan 250353 P. R. China
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