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Kook E, Chun KS, Kim DH. Emerging Roles of YES1 in Cancer: The Putative Target in Drug Resistance. Int J Mol Sci 2024; 25:1450. [PMID: 38338729 PMCID: PMC10855972 DOI: 10.3390/ijms25031450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Src family kinases (SFKs) are non-receptor tyrosine kinases that are recognized as proto-oncogenic products. Among SFKs, YES1 is frequently amplified and overexpressed in a variety of human tumors, including lung, breast, ovarian, and skin cancers. YES1 plays a pivotal role in promoting cell proliferation, survival, and invasiveness during tumor development. Recent findings indicate that YES1 expression and activation are associated with resistance to chemotherapeutic drugs and tyrosine kinase inhibitors in human malignancies. YES1 undergoes post-translational modifications, such as lipidation and nitrosylation, which can modulate its catalytic activity, subcellular localization, and binding affinity for substrate proteins. Therefore, we investigated the diverse mechanisms governing YES1 activation and its impact on critical intracellular signal transduction pathways. We emphasized the function of YES1 as a potential mechanism contributing to the anticancer drug resistance emergence.
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Affiliation(s)
- Eunjin Kook
- Department of Chemistry, Kyonggi University, Suwon 16227, Republic of Korea;
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu 42691, Republic of Korea;
| | - Do-Hee Kim
- Department of Chemistry, Kyonggi University, Suwon 16227, Republic of Korea;
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2
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Steinlein S, Essmann F, Ghilardi AF, Horn H, Schüler J, Hausser A, Sun L, Ott G, Kalla C. Indolyl-chalcone derivatives trigger apoptosis in cisplatin-resistant mesothelioma cells through aberrant tubulin polymerization and deregulation of microtubule-associated proteins. Front Oncol 2023; 13:1190988. [PMID: 37305581 PMCID: PMC10248254 DOI: 10.3389/fonc.2023.1190988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/11/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction Malignant pleural mesothelioma (MPM) is a neoplasm with dismal prognosis and notorious resistance to the standard therapeutics cisplatin and pemetrexed. Chalcone derivatives are efficacious anti-cancer agents with minimal toxicity and have, therefore, gained pharmaceutical interest. Here, we investigated the efficacy of CIT-026 and CIT-223, two indolyl-chalcones (CITs), to inhibit growth and viability of MPM cells and defined the mechanism by which the compounds induce cell death. Methods The effects of CIT-026 and CIT-223 were analyzed in five MPM cell lines, using viability, immunofluorescence, real-time cell death monitoring, and tubulin polymerization assays, along with siRNA knockdown. Phospho-kinase arrays and immunoblotting were used to identify signaling molecules that contribute to cell death. Results CIT-026 and CIT-223 were toxic in all cell lines at sub-micromolar concentrations, in particular in MPM cells resistant to cisplatin and pemetrexed, while normal fibroblasts were only modestly affected. Both CITs targeted tubulin polymerization via (1) direct interaction with tubulin and (2) phosphorylation of microtubule regulators STMN1, CRMP2 and WNK1. Formation of aberrant tubulin fibers caused abnormal spindle morphology, mitotic arrest and apoptosis. CIT activity was not reduced in CRMP2-negative and STMN1-silenced MPM cells, indicating that direct tubulin targeting is sufficient for toxic effects of CITs. Discussion CIT-026 and CIT-223 are highly effective inducers of tumor cell apoptosis by disrupting microtubule assembly, with only modest effects on non-malignant cells. CITs are potent anti-tumor agents against MPM cells, in particular cells resistant to standard therapeutics, and thus warrant further evaluation as potential small-molecule therapeutics in MPM.
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Affiliation(s)
- Sophia Steinlein
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
- Department of Clinical Pharmacology, University Hospital, University of Tuebingen, Tuebingen, Germany
| | - Frank Essmann
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | - Amanda Franceschini Ghilardi
- Harvard Medical School, Center for Drug Discovery and Translational Research, Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Heike Horn
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
- Department of Clinical Pharmacology, University Hospital, University of Tuebingen, Tuebingen, Germany
| | | | - Angelika Hausser
- Institute of Cell Biology and Immunology and Stuttgart Research Center for Systems Biology, University of Stuttgart, Stuttgart, Germany
| | - Lijun Sun
- Harvard Medical School, Center for Drug Discovery and Translational Research, Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - German Ott
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | - Claudia Kalla
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
- Department of Clinical Pharmacology, University Hospital, University of Tuebingen, Tuebingen, Germany
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3
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Yang H, Gao Y, Xu D, Xu K, Liang SQ, Yang Z, Scherz A, Hall SRR, Forster S, Berezowska S, Yao F, Ochsenbein AF, Marti TM, Kocher GJ, Schmid RA, Dorn P, Peng RW. MEK1 drives oncogenic signaling and interacts with PARP1 for genomic and metabolic homeostasis in malignant pleural mesothelioma. Cell Death Discov 2023; 9:55. [PMID: 36765038 DOI: 10.1038/s41420-023-01307-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/20/2022] [Accepted: 01/06/2023] [Indexed: 02/12/2023] Open
Abstract
Malignant pleural mesothelioma (MPM) is a lethal malignancy etiologically caused by asbestos exposure, for which there are few effective treatment options. Although asbestos carcinogenesis is associated with reactive oxygen species (ROS), the bona fide oncogenic signaling pathways that regulate ROS homeostasis and bypass ROS-evoked apoptosis in MPM are poorly understood. In this study, we demonstrate that the mitogen-activated protein kinase (MAPK) pathway RAS-RAF-MEK-ERK is hyperactive and a molecular driver of MPM, independent of histological subtypes and genetic heterogeneity. Suppression of MAPK signaling by clinically approved MEK inhibitors (MEKi) elicits PARP1 to protect MPM cells from the cytotoxic effects of MAPK pathway blockage. Mechanistically, MEKi induces impairment of homologous recombination (HR) repair proficiency and mitochondrial metabolic activity, which is counterbalanced by pleiotropic PARP1. Consequently, the combination of MEK with PARP inhibitors enhances apoptotic cell death in vitro and in vivo that occurs through coordinated upregulation of cytotoxic ROS in MPM cells, suggesting a mechanism-based, readily translatable strategy to treat this daunting disease. Collectively, our studies uncover a previously unrecognized scenario that hyperactivation of the MAPK pathway is an essential feature of MPM and provide unprecedented evidence that MAPK signaling cooperates with PARP1 to homeostatically maintain ROS levels and escape ROS-mediated apoptosis.
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4
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Sluimer LM, Bullock E, Rätze MAK, Enserink L, Overbeeke C, Hornsveld M, Brunton VG, Derksen PWB, Tavares S. SKOR1 mediates FER kinase-dependent invasive growth of breast cancer cells. J Cell Sci 2023; 136:286925. [PMID: 36620935 DOI: 10.1242/jcs.260243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 12/22/2022] [Indexed: 01/10/2023] Open
Abstract
High expression of the non-receptor tyrosine kinase FER is an independent prognostic factor that correlates with poor survival in breast cancer patients. To investigate whether the kinase activity of FER is essential for its oncogenic properties, we developed an ATP analogue-sensitive knock-in allele (FERASKI). Specific FER kinase inhibition in MDA-MB-231 cells reduces migration and invasion, as well as metastasis when xenografted into a mouse model of breast cancer. Using the FERASKI system, we identified Ski family transcriptional corepressor 1 (SKOR1) as a direct FER kinase substrate. SKOR1 loss phenocopies FER inhibition, leading to impaired proliferation, migration and invasion, and inhibition of breast cancer growth and metastasis formation in mice. We show that SKOR1 Y234, a candidate FER phosphorylation site, is essential for FER-dependent tumor progression. Finally, our work suggests that the SKOR1 Y234 residue promotes Smad2/3 signaling through SKOR1 binding to Smad3. Our study thus identifies SKOR1 as a mediator of FER-dependent progression of high-risk breast cancers.
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Affiliation(s)
- Lilian M Sluimer
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Esme Bullock
- Edinburgh Cancer Research UK Centre, University of Edinburgh, Crewe Road South, EH4 2XR Edinburgh, UK
| | - Max A K Rätze
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Lotte Enserink
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Celine Overbeeke
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Marten Hornsveld
- Department of Molecular Cell Biology, Cancer Genomics Centre Netherlands and Centre for Biomedical Genetics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Valerie G Brunton
- Edinburgh Cancer Research UK Centre, University of Edinburgh, Crewe Road South, EH4 2XR Edinburgh, UK
| | - Patrick W B Derksen
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Sandra Tavares
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands.,i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
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5
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Singh A, Pruett N, Pahwa R, Mahajan AP, Schrump DS, Hoang CD. MicroRNA-206 suppresses mesothelioma progression via the Ras signaling axis. Mol Ther Nucleic Acids 2021; 24:669-81. [PMID: 33996251 DOI: 10.1016/j.omtn.2021.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 04/01/2021] [Indexed: 02/07/2023]
Abstract
Malignant pleural mesothelioma (MPM) is an incurable surface neoplasm with peculiar pathobiology. MPM proliferates by using the tyrosine-kinase-Ras pathway. Despite representing an attractive therapeutic target, there are no standard agent(s) specifically inhibiting Ras signaling adopted in clinical settings. We posited that biologic effects of microRNA (miRNA) can disrupt this molecular network. Using patient samples, cell lines, and murine tumor xenograft models, we confirmed specific genes in the Ras pathway are targeted by an MPM-associated miRNA and then examined its therapeutic effects. We verified significant and consistent downregulation of miR-206 in MPM tissues. When miR-206 is ectopically re-expressed in MPM cells and delivered to tumor xenografts in mice, it exerted significant cell killing by suppressing multiple components of the receptor-tyrosine-kinase-Ras-cell-cycle-signaling network; some of which were prognostic when overexpressed and/or have not been druggable. Of note, we validated CDK6 as a novel target of miR-206. Overall, this miR-206-targeting mechanism manifested as induced G1/S cell cycle arrest. In addition, we identified a novel MPM therapeutic combination by adding systemic-route abemaciclib with local-route miR-206, which showed additive efficacy translating to improved survival. Our pre-clinical study suggests a potential pathophysiologic role for, and therapeutic relevance of, miR-206 in MPM.
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Badhai J, Pandey GK, Song JY, Krijgsman O, Bhaskaran R, Chandrasekaran G, Kwon MC, Bombardelli L, Monkhorst K, Grasso C, Zevenhoven J, van der Vliet J, Cozijnsen M, Krimpenfort P, Peeper D, van Lohuizen M, Berns A. Combined deletion of Bap1, Nf2, and Cdkn2ab causes rapid onset of malignant mesothelioma in mice. J Exp Med 2021; 217:151644. [PMID: 32271879 PMCID: PMC7971132 DOI: 10.1084/jem.20191257] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 12/09/2019] [Accepted: 02/26/2020] [Indexed: 12/26/2022] Open
Abstract
We have generated mouse models of malignant mesothelioma (MM) based upon disruption of the Bap1, Nf2, and Cdkn2ab tumor suppressor loci in various combinations as also frequently observed in human MM. Inactivation of all three loci in the mesothelial lining of the thoracic cavity leads to a highly aggressive MM that recapitulates the histological features and gene expression profile observed in human patients. The tumors also show a similar inflammatory phenotype. Bap1 deletion alone does not cause MM but dramatically accelerates MM development when combined with Nf2 and Cdkn2ab (hereafter BNC) disruption. The accelerated tumor development is accompanied by increased Polycomb repression and EZH2-mediated redistribution of H3K27me3 toward promoter sites with concomitant activation of PI3K and MAPK pathways. Treatment of BNC tumor–bearing mice with cisplatin and pemetrexed, the current frontline treatment, prolongs survival. This makes the autochthonous mouse model described here very well suited to explore the pathogenesis of MM and validate new treatment regimens for MM, including immunotherapy.
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Affiliation(s)
- Jitendra Badhai
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Gaurav Kumar Pandey
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Ji-Ying Song
- Department of Experimental Animal Pathology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Oscar Krijgsman
- Oncode Institute, Division of Molecular Oncology and Immunology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Rajith Bhaskaran
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Gayathri Chandrasekaran
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Min-Chul Kwon
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Lorenzo Bombardelli
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Kim Monkhorst
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Cristoforo Grasso
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - John Zevenhoven
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Jan van der Vliet
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Miranda Cozijnsen
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Paul Krimpenfort
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Daniel Peeper
- Oncode Institute, Division of Molecular Oncology and Immunology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Maarten van Lohuizen
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Anton Berns
- Oncode Institute, Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
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7
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Indovina P, Forte IM, Pentimalli F, Giordano A. Targeting SRC Family Kinases in Mesothelioma: Time to Upgrade. Cancers (Basel) 2020; 12:cancers12071866. [PMID: 32664483 PMCID: PMC7408838 DOI: 10.3390/cancers12071866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/24/2022] Open
Abstract
Malignant mesothelioma (MM) is a deadly tumor mainly caused by exposure to asbestos. Unfortunately, no current treatment is able to change significantly the natural history of the disease, which has a poor prognosis in the majority of patients. The non-receptor tyrosine kinase SRC and other SRC family kinase (SFK) members are frequently hyperactivated in many cancer types, including MM. Several works have indeed suggested that SFKs underlie MM cell proliferation, survival, motility, and invasion, overall affecting multiple oncogenic pathways. Consistently, SFK inhibitors effectively counteracted MM cancerous features at the preclinical level. Dasatinib, a multi-kinase inhibitor targeting SFKs, was also assessed in clinical trials either as second-line treatment for patients with unresectable MM or, more recently, as a neoadjuvant agent in patients with resectable MM. Here, we provide an overview of the molecular mechanisms implicating SFKs in MM progression and discuss possible strategies for a more successful clinical application of SFK inhibitors. Our aim is to stimulate discussion and further consideration of these agents in better designed preclinical and clinical studies to make the most of another class of powerful antitumoral drugs, which too often are lost in translation when applied to MM.
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Affiliation(s)
- Paola Indovina
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA;
- Institute for High Performance Computing and Networking, National Research Council of Italy (ICAR-CNR), I-80131 Naples, Italy
- Correspondence: (P.I.); (F.P.)
| | - Iris Maria Forte
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, I-80131 Naples, Italy;
| | - Francesca Pentimalli
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, I-80131 Naples, Italy;
- Correspondence: (P.I.); (F.P.)
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA;
- Department of Medical Biotechnologies, University of Siena, I-53100 Siena, Italy
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8
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Abstract
Rodent models of malignant mesothelioma help facilitate the understanding of the biology of this highly lethal cancer and to develop and test new interventions. Introducing the same genetic lesions as found in human mesothelioma in mice results in tumors that show close resemblance with the human disease counterpart. This includes the extensive inflammatory responses that characterize human malignant mesothelioma. The relatively fast development of mesothelioma in mice when the appropriate combination of lesions is introduced, with or without exposure to asbestos, make the autochthonous models particularly useful for testing new treatment strategies in an immunocompetent setting, whereas Patient-Derived Xenograft models are particularly useful to assess effects of inter- and intra-tumor heterogeneity and human-specific features of mesothelioma. It is to be expected that new insights obtained by studying these experimental systems will lead to new more effective treatments for this devastating disease.
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Affiliation(s)
- Joseph R Testa
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA, United States
| | - Anton Berns
- Division of Molecular Genetics, The Netherlands Cancer Institute, Amsterdam, Netherlands
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9
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Okuzaki D, Yamauchi T, Mitani F, Miyata M, Ninomiya Y, Watanabe R, Akamatsu H, Oneyama C. c-Src promotes tumor progression through downregulation of microRNA-129-1-3p. Cancer Sci 2020; 111:418-428. [PMID: 31799727 PMCID: PMC7004518 DOI: 10.1111/cas.14269] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 11/20/2019] [Accepted: 11/27/2019] [Indexed: 12/31/2022] Open
Abstract
MicroRNAs (miRNAs) fine‐tune cellular signaling by regulating expression of signaling proteins, and aberrant expression of miRNAs is observed in many cancers. The tyrosine kinase c‐Src is upregulated in various human cancers, but the molecular mechanisms underlying c‐Src‐mediated tumor progression remain unclear. In previous investigations of miRNA‐mediated control of c‐Src‐related oncogenic pathways, we identified miRNAs that were downregulated in association with c‐Src transformation and uncovered the signaling networks by predicting their target genes, which might act cooperatively to control tumor progression. Here, to further elucidate the process of cell transformation driven by c‐Src, we analyzed the expression profiles of miRNAs in a doxycycline‐inducible Src expression system. We found that miRNA (miR)‐129‐1‐3p was downregulated in the early phase of c‐Src‐induced cell transformation, and that reexpression of miR‐129‐1‐3p disrupted c‐Src‐induced cell transformation. In addition, miR‐129‐1‐3p downregulation was tightly associated with tumor progression in human colon cancer cells/tissues. Expression of miR‐129‐1‐3p in human colon cancer cells caused morphological changes and suppressed tumor growth, cell adhesion, and invasion. We also identified c‐Src and its critical substrate Fer, and c‐Yes, a member of the Src family of kinases, as novel targets of miR‐129‐1‐3p. Furthermore, we found that miR‐129‐1‐3p‐mediated regulation of c‐Src/Fer and c‐Yes is important for controlling cell adhesion and invasion. Downregulation of miR‐129‐1‐3p by early activation of c‐Src increases expression of these target genes and synergistically promotes c‐Src‐related oncogenic signaling. Thus, c‐Src‐miR‐129‐1‐3p circuits serve as critical triggers for tumor progression in many human cancers that harbor upregulation of c‐Src.
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Affiliation(s)
- Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Tomoe Yamauchi
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Fumie Mitani
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Mamiko Miyata
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Yuichi Ninomiya
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Risayo Watanabe
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
| | | | - Chitose Oneyama
- Division of Cancer Cell Regulation, Aichi Cancer Center Research Institute, Nagoya, Japan
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10
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Matsuura Y. High-resolution structural analysis shows how different crystallographic environments can induce alternative modes of binding of a phosphotyrosine peptide to the SH2 domain of Fer tyrosine kinase. Protein Sci 2019; 28:2011-2019. [PMID: 31441171 DOI: 10.1002/pro.3713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 11/08/2022]
Abstract
Fes and Fes-related (Fer) protein tyrosine kinases (PTKs) comprise a subfamily of nonreceptor tyrosine kinases characterized by a unique multidomain structure composed of an N-terminal Fer/CIP4 homology-Bin/Amphiphysin/Rvs (F-BAR) domain, a central Src homology 2 (SH2) domain, and a C-terminal PTK domain. Fer is ubiquitously expressed, and upregulation of Fer has been implicated in various human cancers. The PTK activity of Fes has been shown to be positively regulated by the binding of phosphotyrosine-containing ligands to the SH2 domain. Here, the X-ray crystal structure of human Fer SH2 domain bound to a phosphopeptide that has D-E-pY-E-N-V-D sequence is reported at 1.37 å resolution. The asymmetric unit (ASU) contains six Fer-phosphopeptide complexes, and the structure reveals three distinct binding modes for the same phosphopeptide. At four out of the six binding sites in the ASU, the phosphopeptide binds to Fer SH2 domain in a type I β-turn conformation, and this could be the optimal binding mode of this phosphopeptide. At the other two binding sites in the ASU, it appears that spatial proximity of neighboring SH2 domains in the crystal induces alternative modes of binding of this phosphopeptide.
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Affiliation(s)
- Yoshiyuki Matsuura
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Japan.,Structural Biology Research Center, Graduate School of Science, Nagoya University, Nagoya, Japan
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11
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Amado DA, Rieders JM, Diatta F, Hernandez-Con P, Singer A, Mak JT, Zhang J, Lancaster E, Davidson BL, Chen-Plotkin AS. AAV-Mediated Progranulin Delivery to a Mouse Model of Progranulin Deficiency Causes T Cell-Mediated Toxicity. Mol Ther 2018; 27:465-478. [PMID: 30559071 DOI: 10.1016/j.ymthe.2018.11.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 11/01/2018] [Accepted: 11/11/2018] [Indexed: 11/16/2022] Open
Abstract
Adeno-associated virus-mediated gene replacement is emerging as a safe and effective means of correcting single-gene mutations affecting the CNS. AAV-mediated progranulin gene (GRN) delivery has been proposed as a treatment for GRN-deficient frontotemporal dementia and neuronal ceroid lipofuscinosis, and recent studies using intraparenchymal AAV-Grn delivery to brain have shown moderate success in histopathologic and behavioral rescue in mouse models. Here, we used AAV9 to deliver GRN to the lateral ventricle to achieve widespread expression in the Grn null mouse brain. We found that, despite a global increase in progranulin, overexpression resulted in dramatic and selective hippocampal toxicity and degeneration affecting neurons and glia. Hippocampal degeneration was preceded by T cell infiltration and perivascular cuffing. GRN delivery with an ependymal-targeting AAV for selective secretion of progranulin into the cerebrospinal fluid similarly resulted in T cell infiltration, as well as ependymal hypertrophy. Interestingly, overexpression of GRN in wild-type animals also provoked T cell infiltration. These results call into question the safety of GRN overexpression in the CNS, with evidence for both a region-selective immune response and cellular proliferative response. Our results highlight the importance of careful consideration of target gene biology and cellular response to overexpression prior to progressing to the clinic.
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Affiliation(s)
- Defne A Amado
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Julianne M Rieders
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Children's Hospital of Philadelphia, 3501 Civic Center Boulevard, 5060 CTRB, Philadelphia, PA 19104, USA
| | - Fortunay Diatta
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Pilar Hernandez-Con
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Adina Singer
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jordan T Mak
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Junxian Zhang
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Eric Lancaster
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Beverly L Davidson
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Children's Hospital of Philadelphia, 3501 Civic Center Boulevard, 5060 CTRB, Philadelphia, PA 19104, USA.
| | - Alice S Chen-Plotkin
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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12
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Tranchant R, Quetel L, Montagne F, De Wolf J, Meiller C, De Koning L, Le Pimpec-Barthes F, Zucman-Rossi J, Jaurand MC, Jean D. Assessment of signaling pathway inhibitors and identification of predictive biomarkers in malignant pleural mesothelioma. Lung Cancer 2018; 126:15-24. [PMID: 30527180 DOI: 10.1016/j.lungcan.2018.10.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/10/2018] [Accepted: 10/12/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVES Malignant pleural mesothelioma (MPM) is an aggressive tumor with limited therapeutic options, requiring the development of efficient targeted therapies based on molecular phenotype of the tumor and to identify predictive biomarkers of the response. MATERIALS AND METHODS The effect of inhibitors was investigated by cell viability assessment on primary MPM cell lines established in our laboratory from patient tumors, well characterized at the molecular level. Effects on apoptosis, cell proliferation and viability on MPM growing in multicellular spheroid were also assessed for verteporfin. Gene and protein expression, and gene knockdown by RNA interference were used to define mechanism of inhibition and specific predictive biomarkers. RESULTS Anti-tumor effect of eight major signaling pathways inhibitors involved in mesothelial carcinogenesis was investigated. Three inhibitors were more efficient than cisplatin, the drug used as first-line chemotherapy in patients with MPM: verteporfin, a putative YAP inhibitor, defactinib, a FAK inhibitor and NSC668394, an Ezrin inhibitor. Verteporfin, the most efficient inhibitor, induced cell proliferation arrest and cell death, and is effective on 3D spheroid multicellular model. Verteporfin sensitivity was YAP-independent and related to molecular classification of the tumors. Biomarkers based on gene expression were identified to predict accurately sensitivity to these three inhibitors. CONCLUSION Our study shows that drug screening on well-characterized MPM cells allows for the identification of novel potential therapeutic strategies and defining specific biomarkers predictive of the drug response.
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Affiliation(s)
- Robin Tranchant
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France
| | - Lisa Quetel
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France
| | - François Montagne
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France; Service de Chirurgie Thoracique, Hôpital Calmette - CHRU de Lille, F-59000, Lille, France; Université Droit et Santé Lille 2, F-59000, Lille, France
| | - Julien De Wolf
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France
| | - Clement Meiller
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France
| | - Leanne De Koning
- Institut Curie, PSL Research University, Translational Research Department, F -75005, Paris, France
| | - Françoise Le Pimpec-Barthes
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France; Département de Chirurgie Thoracique, Hôpital Européen Georges Pompidou, F-75015, Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, F-75015, Paris, France
| | - Jessica Zucman-Rossi
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, F-75015, Paris, France
| | - Marie-Claude Jaurand
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France
| | - Didier Jean
- Inserm, UMR-1162, Génomique fonctionnelle des tumeurs solides, F-75010, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Labex Immuno-oncology, F-75000, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d'Hématologie, Paris, F-75010, France; Université Paris 13, Sorbonne Paris Cité, F-93206, Saint-Denis, France.
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13
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Mönch D, Bode-Erdmann S, Kalla J, Sträter J, Schwänen C, Falkenstern-Ge R, Klumpp S, Friedel G, Ott G, Kalla C. A subgroup of pleural mesothelioma expresses ALK protein and may be targetable by combined rapamycin and crizotinib therapy. Oncotarget 2018; 9:20781-20794. [PMID: 29755689 PMCID: PMC5945506 DOI: 10.18632/oncotarget.25111] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 03/12/2018] [Indexed: 02/07/2023] Open
Abstract
Malignant pleural mesothelioma (MPM) is a neoplasm with inferior prognosis and notorious chemotherapeutic resistance. Targeting aberrantly overexpressed kinases to cure MPM is a promising therapeutic strategy. Here, we examined ALK, MET and mTOR as potential therapeutic targets and determined the combinatorial efficacy of ALK and mTOR targeting on tumor cell growth in vivo. First, ALK overexpression, rearrangement and mutation were studied in primary MPM by qRT-PCR, FISH, immunohistochemistry and sequence analysis; mTOR and MET expression by qRT-PCR and immunohistochemistry. Overexpression of full-length ALK transcripts was observed in 25 (19.5%) of 128 primary MPM, of which ten expressed ALK protein. ALK overexpression was not associated with gene rearrangement, amplification or kinase-domain mutation. mTOR protein was detected in 28.7% MPM, co-expressed with ALK or MET in 5% and 15% MPM, respectively. The ALK/MET inhibitor crizotinib enhanced the anti-tumor effect of the mTOR-inhibitor rapamycin in a patient-derived MPM xenograft with co-activated ALK/mTOR: combined therapy achieved tumor shrinkage in 4/5 tumors and growth stagnation in one tumor. Treatment effects on proliferation, apoptosis, autophagy and pathway signaling were assessed using Ki-67 immunohistochemistry, TUNEL assay, LC3B immunofluorescence, and immunoblotting. Co-treatment significantly suppressed cell proliferation and induced autophagy and caspase-independent, necrotic cell death. Rapamycin/crizotinib simultaneously inhibited mTORC1 (evidenced by S6 kinase and RPS6 dephosphorylation) and ALK signaling (ALK, AKT, STAT3 dephosphorylation), and crizotinib suppressed the adverse AKT activation induced by rapamycin. In conclusion, co-treatment with rapamycin and crizotinib is effective in suppressing MPM tumor growth and should be further explored as a therapeutic alternative in mesothelioma.
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Affiliation(s)
- Dina Mönch
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany.,Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany.,University of Tübingen, 72074 Tübingen, Germany
| | - Sabine Bode-Erdmann
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany.,Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
| | - Jörg Kalla
- Institute of Pathology, Schwarzwald-Baar-Klinikum, 78052 Villingen-Schwenningen, Germany
| | - Jörn Sträter
- Institute of Pathology, 73730 Esslingen, Germany
| | - Carsten Schwänen
- Clinic of Internal Medicine, Oncology/Hematology, Gastroenterology and Infectiology, Klinikum Esslingen, 73730 Esslingen, Germany
| | - Roger Falkenstern-Ge
- Center for Pulmonology and Thoracic Surgery, Klinik Schillerhöhe, 70839 Stuttgart-Gerlingen, Germany
| | - Siegfried Klumpp
- Hospital Pharmacy, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
| | - Godehard Friedel
- Center for Pulmonology and Thoracic Surgery, Klinik Schillerhöhe, 70839 Stuttgart-Gerlingen, Germany
| | - German Ott
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany.,Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
| | - Claudia Kalla
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany.,Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany.,University of Tübingen, 72074 Tübingen, Germany
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14
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Monica V, Lo Iacono M, Bracco E, Busso S, Di Blasio L, Primo L, Peracino B, Papotti M, Scagliotti G. Dasatinib modulates sensitivity to pemetrexed in malignant pleural mesothelioma cell lines. Oncotarget 2018; 7:76577-76589. [PMID: 27391433 PMCID: PMC5363531 DOI: 10.18632/oncotarget.10428] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 06/16/2016] [Indexed: 12/24/2022] Open
Abstract
Background Thymidylate synthase (TS), one of the key enzymes for thymidine synthesis, is a target of pemetrexed (PEM), a key agent for the systemic therapy of malignant pleural mesothelioma (MPM) and its overexpression has been correlated to PEM-resistance. In MPM, experimental data report activation of the c-SRC tyrosine kinase suggesting it as a potential target to be further investigated. Results MPM cell lines showed different sensitivity, being MSTO the most and REN the least sensitive to PEM. REN cells showed high levels of both TS and SRC: dasatinib inhibited SRC activation and suppressed TS protein expression, starting from 100 nM dose, blocking the PEM-induced up regulation of TS protein levels. Dasatinib treatment impaired cells migration, and both sequential and co-administration with PEM significantly increased apoptosis. Dasatinib pretreatment improved sensitivity to PEM, downregulated TS promoter activity and, in association with PEM, modulated the downstream PI3K-Akt-mTOR signaling. Cell lines and Methods In three MPM cell lines (MPP89, REN and MSTO), the effects of c-SRC inhibition, in correlation with TS expression and PEM sensitivity, were evaluated. PEM and dasatinib, a SRC inhibitor, were administered as single agents, in combination or sequentially. Cell viability, apoptosis and migration, as well as TS expression and SRC activation have been assessed. Conclusions These data indicate that dasatinib sensitizes mesothelioma cells to PEM through TS down-regulation.
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Affiliation(s)
- Valentina Monica
- Department of Oncology, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
| | - Marco Lo Iacono
- Department of Oncology, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
| | - Enrico Bracco
- Department of Oncology, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
| | - Simone Busso
- Department of Oncology, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
| | - Laura Di Blasio
- Department of Oncology, University of Torino, IRCCS Candiolo, Torino, Italy
| | - Luca Primo
- Department of Oncology, University of Torino, IRCCS Candiolo, Torino, Italy
| | - Barbara Peracino
- Department of Clinical and Biological Sciences, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
| | - Mauro Papotti
- Department of Oncology, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
| | - Giorgio Scagliotti
- Department of Oncology, University of Torino, San Luigi Hospital, Orbassano, Torino, Italy
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15
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16
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Quispel-Janssen JM, Badhai J, Schunselaar L, Price S, Brammeld J, Iorio F, Kolluri K, Garnett M, Berns A, Baas P, McDermott U, Neefjes J, Alifrangis C. Comprehensive Pharmacogenomic Profiling of Malignant Pleural Mesothelioma Identifies a Subgroup Sensitive to FGFR Inhibition. Clin Cancer Res 2017; 24:84-94. [DOI: 10.1158/1078-0432.ccr-17-1172] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 08/21/2017] [Accepted: 10/11/2017] [Indexed: 11/16/2022]
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17
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Scagliotti GV, Gaafar R, Nowak AK, Reck M, Tsao AS, van Meerbeeck J, Vogelzang NJ, Nakano T, von Wangenheim U, Velema D, Morsli N, Popat S. LUME-Meso: Design and Rationale of the Phase III Part of a Placebo-Controlled Study of Nintedanib and Pemetrexed/Cisplatin Followed by Maintenance Nintedanib in Patients With Unresectable Malignant Pleural Mesothelioma. Clin Lung Cancer 2017; 18:589-593. [PMID: 28690011 DOI: 10.1016/j.cllc.2017.03.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 12/11/2022]
Abstract
Malignant pleural mesothelioma (MPM) is a rare but aggressive disease: median survival is 6 to 9 months if untreated. Standard first-line treatment for patients with unresectable MPM is cisplatin/pemetrexed, with a median overall survival (OS) of approximately 1 year. Improvements in first-line treatment options are needed. With the benefit of combining bevacizumab with standard therapy shown in the Mesothelioma Avastin Cisplatin Pemetrexed Study (MAPS), vascular endothelial growth factor (VEGF) pathway inhibition has gained renewed interest as a treatment approach. Nintedanib is an oral angiokinase inhibitor targeting multiple signaling pathways implicated in the pathogenesis of MPM, including the VEGF receptor. The phase III part of the international, phase II/III LUME-Meso study is evaluating the efficacy and safety of nintedanib plus pemetrexed/cisplatin in patients with unresectable epithelioid MPM. Originally, this was a double-blind, randomized, phase II exploratory study and was amended to include a confirmatory phase III part following the recommendation of an internal Data Monitoring Committee and review of phase II data. The phase III part plans to enroll 450 chemotherapy-naive patients, who will be randomized to receive pemetrexed/cisplatin on day 1 and nintedanib or placebo on days 2 to 21, for a maximum of 6 cycles. Patients without disease progression who are eligible to continue study treatment will receive maintenance treatment with nintedanib or placebo until disease progression or undue toxicity. The primary end point is progression-free survival; OS is the key secondary end point. The study will use an adaptive design, including an interim analysis to reassess the number of OS events required to ensure sufficient power for OS analysis. The study is currently enrolling patients.
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Affiliation(s)
| | - Rabab Gaafar
- National Cancer Institute, Cairo University, Cairo, Egypt
| | - Anna K Nowak
- School of Medicine, Faculty of Medicine and Health Sciences, University of Western Australia, Crawley, Western Australia, Australia; Department of Medical Oncology, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Martin Reck
- Department of Thoracic Oncology, Lung Clinic Grosshansdorf, Airway Research Center North, Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Anne S Tsao
- Department of Thoracic/Head and Neck Medical Oncology, Division of Cancer Medicine, University of Texas, MD Anderson Cancer Center, Houston, TX
| | - Jan van Meerbeeck
- Department of Thoracic Oncology, Antwerp University Hospital, Edegem, Belgium
| | | | - Takashi Nakano
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | | | - Derek Velema
- Boehringer Ingelheim (Canada) Ltd/Ltée, Burlington, Ontario, Canada
| | | | - Sanjay Popat
- Royal Marsden Hospital NHS Foundation Trust, London and Surrey, United Kingdom
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18
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19
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Pulito C, Mori F, Sacconi A, Casadei L, Ferraiuolo M, Valerio MC, Santoro R, Goeman F, Maidecchi A, Mattoli L, Manetti C, Di Agostino S, Muti P, Blandino G, Strano S. Cynara scolymus affects malignant pleural mesothelioma by promoting apoptosis and restraining invasion. Oncotarget 2016; 6:18134-50. [PMID: 26136339 PMCID: PMC4627240 DOI: 10.18632/oncotarget.4017] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 06/12/2015] [Indexed: 11/25/2022] Open
Abstract
Malignant pleural mesothelioma is a poorly treated neoplasia arising from the pleural mesothelial lining. Here we document that the leaf extract of Cynara scolymus exerts broad antitumoral effects both in vitro and in vivo on mesothelioma cell lines. We found that Cynara scolymus treatment affects strongly cell growth, migration and tumor engraftment of mesothelioma cell lines. Strikingly, dietary feeding with Cynara scolymus leaf extract reduces the growth of mesothelioma xenografted tumors similarly to pemetrexed, a commonly employed drug in the treatment of mesothelioma. In aggregate our findings suggest that leaf extract of Cynara scolymus holds therapeutic potential for the treatment of mesothelioma.
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Affiliation(s)
- Claudio Pulito
- Molecular Chemoprevention Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | - Federica Mori
- Molecular Chemoprevention Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | - Andrea Sacconi
- Translational Oncogenomic Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | - Luca Casadei
- Department of Chemistry, University of Rome "La Sapienza", Rome, Italy
| | - Maria Ferraiuolo
- Translational Oncogenomic Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | | | - Raffaela Santoro
- Molecular Chemoprevention Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | - Frauke Goeman
- Translational Oncogenomic Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | | | | | - Cesare Manetti
- Department of Chemistry, University of Rome "La Sapienza", Rome, Italy
| | - Silvia Di Agostino
- Translational Oncogenomic Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy
| | - Paola Muti
- Department of Oncology, Juravinski Cancer Center, McMaster University, Hamilton, Ontario, Canada
| | - Giovanni Blandino
- Translational Oncogenomic Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy.,Department of Oncology, Juravinski Cancer Center, McMaster University, Hamilton, Ontario, Canada
| | - Sabrina Strano
- Molecular Chemoprevention Unit, Molecular Medicine Area, Regina Elena National Cancer Institute, Rome, Italy.,Department of Oncology, Juravinski Cancer Center, McMaster University, Hamilton, Ontario, Canada
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Benvenuto M, Mattera R, Taffera G, Giganti MG, Lido P, Masuelli L, Modesti A, Bei R. The Potential Protective Effects of Polyphenols in Asbestos-Mediated Inflammation and Carcinogenesis of Mesothelium. Nutrients 2016; 8:nu8050275. [PMID: 27171110 PMCID: PMC4882688 DOI: 10.3390/nu8050275] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 04/12/2016] [Accepted: 05/04/2016] [Indexed: 01/09/2023] Open
Abstract
Malignant Mesothelioma (MM) is a tumor of the serous membranes linked to exposure to asbestos. A chronic inflammatory response orchestrated by mesothelial cells contributes to the development and progression of MM. The evidence that: (a) multiple signaling pathways are aberrantly activated in MM cells; (b) asbestos mediated-chronic inflammation has a key role in MM carcinogenesis; (c) the deregulation of the immune system might favor the development of MM; and (d) a drug might have a better efficacy when injected into a serous cavity thus bypassing biotransformation and reaching an effective dose has prompted investigations to evaluate the effects of polyphenols for the therapy and prevention of MM. Dietary polyphenols are able to inhibit cancer cell growth by targeting multiple signaling pathways, reducing inflammation, and modulating immune response. The ability of polyphenols to modulate the production of pro-inflammatory molecules by targeting signaling pathways or ROS might represent a key mechanism to prevent and/or to contrast the development of MM. In this review, we will report the current knowledge on the ability of polyphenols to modulate the immune system and production of mediators of inflammation, thus revealing an important tool in preventing and/or counteracting the growth of MM.
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Affiliation(s)
- Monica Benvenuto
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy.
| | - Rosanna Mattera
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy.
| | - Gloria Taffera
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy.
| | - Maria Gabriella Giganti
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy.
| | - Paolo Lido
- Internal Medicine Residency Program, University of Rome "Tor Vergata", Rome 00133, Italy.
| | - Laura Masuelli
- Department of Experimental Medicine, University of Rome "Sapienza", Rome 00164, Italy.
| | - Andrea Modesti
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy.
| | - Roberto Bei
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome 00133, Italy.
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21
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Kadariya Y, Menges CW, Talarchek J, Cai KQ, Klein-Szanto AJ, Pietrofesa RA, Christofidou-Solomidou M, Cheung M, Mossman BT, Shukla A, Testa JR. Inflammation-Related IL1β/IL1R Signaling Promotes the Development of Asbestos-Induced Malignant Mesothelioma. Cancer Prev Res (Phila) 2016; 9:406-414. [PMID: 26935421 DOI: 10.1158/1940-6207.capr-15-0347] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 02/25/2016] [Indexed: 11/16/2022]
Abstract
Exposure to asbestos is causally associated with the development of malignant mesothelioma, a cancer of cells lining the internal body cavities. Malignant mesothelioma is an aggressive cancer resistant to all current therapies. Once inhaled or ingested, asbestos causes inflammation in and around tissues that come in contact with these carcinogenic fibers. Recent studies suggest that inflammation is a major contributing factor in the development of many types of cancer, including malignant mesothelioma. The NALP3/NLRP3 inflammasome, including the component ASC, is thought to be an important mediator of inflammation in cells that sense extracellular insults, such as asbestos, and activate a signaling cascade resulting in release of mature IL1β and recruitment of inflammatory cells. To determine if inflammasome-mediated inflammation contributes to asbestos-induced malignant mesothelioma, we chronically exposed Asc-deficient mice and wild-type littermates to asbestos and evaluated differences in tumor incidence and latency. The Asc-deficient mice showed significantly delayed tumor onset and reduced malignant mesothelioma incidence compared with wild-type animals. We also tested whether inflammation-related release of IL1β contributes to tumor development in an accelerated mouse model of asbestos-induced malignant mesothelioma. Nf2(+/-);Cdkn2a(+/-) mice exposed to asbestos in the presence of anakinra, an IL1 receptor (IL1R) antagonist, showed a marked delay in the median time of malignant mesothelioma onset compared with similarly exposed mice given vehicle control (33.1 weeks vs. 22.6 weeks, respectively). Collectively, these studies provide evidence for a link between inflammation-related IL1β/IL1R signaling and the development of asbestos-induced malignant mesothelioma. Furthermore, these findings provide rationale for chemoprevention strategies targeting IL1β/IL1R signaling in high-risk, asbestos-exposed populations. Cancer Prev Res; 9(5); 406-14. ©2016 AACR.
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Affiliation(s)
- Yuwaraj Kadariya
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Craig W Menges
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | | | - Kathy Q Cai
- Histopathology Facility, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Andres J Klein-Szanto
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111.,Histopathology Facility, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Ralph A Pietrofesa
- Department of Medicine, Pulmonary, Allergy and Critical Care Division, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Melpo Christofidou-Solomidou
- Department of Medicine, Pulmonary, Allergy and Critical Care Division, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Mitchell Cheung
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Brooke T Mossman
- Department of Pathology, University of Vermont College of Medicine, Burlington, VT, 05405-0068
| | - Arti Shukla
- Department of Pathology, University of Vermont College of Medicine, Burlington, VT, 05405-0068
| | - Joseph R Testa
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
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22
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Sirvent A, Urbach S, Roche S. Contribution of phosphoproteomics in understanding SRC signaling in normal and tumor cells. Proteomics 2015; 15:232-44. [PMID: 25403792 DOI: 10.1002/pmic.201400162] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/30/2014] [Accepted: 11/12/2014] [Indexed: 01/02/2023]
Abstract
The membrane-anchored, non-receptor tyrosine kinase (non-RTK) SRC is a critical regulator of signal transduction induced by a large variety of cell-surface receptors, including RTKs that bind to growth factors to control cell growth and migration. When deregulated, SRC shows strong oncogenic activity, probably because of its capacity to promote RTK-mediated downstream signaling even in the absence of extracellular stimuli. Accordingly, SRC is frequently deregulated in human cancer and is thought to play important roles during tumorigenesis. However, our knowledge on the molecular mechanism by which SRC controls signaling is incomplete due to the limited number of key substrates identified so far. Here, we review how phosphoproteomic methods have changed our understanding of the mechanisms underlying SRC signaling in normal and tumor cells and discuss how these novel findings can be used to improve therapeutic strategies aimed at targeting SRC signaling in human cancer.
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Affiliation(s)
- Audrey Sirvent
- CNRS UMR5237, University Montpellier 1 and 2, CRBM, Montpellier, France
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Oneyama C, Yoshikawa Y, Ninomiya Y, Iino T, Tsukita S, Okada M. Fer tyrosine kinase oligomer mediates and amplifies Src-induced tumor progression. Oncogene 2015; 35:501-12. [PMID: 25867068 DOI: 10.1038/onc.2015.110] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 02/07/2015] [Accepted: 02/27/2015] [Indexed: 01/08/2023]
Abstract
c-Src is upregulated in various human cancers, suggesting its role in malignant progression. However, the molecular circuits of c-Src oncogenic signaling remain elusive. Here we show that Fer tyrosine kinase oligomer mediates and amplifies Src-induced tumor progression. Previously, we showed that transformation of fibroblasts is promoted by the relocation of c-Src to non-raft membranes. In this study, we identified Fer and ezrin as non-raft c-Src targets. c-Src directly activated Fer by initiating its autophosphorylation, which was further amplified by Fer oligomerization. Fer interacted with active c-Src at focal adhesion membranes and activated Fer-phosphorylated ezrin to induce cell transformation. Fer was also crucial for cell transformation induced by v-Src or epidermal growth-factor receptor activation. Furthermore, Fer activation was required for tumorigenesis and invasiveness in some cancer cells in which c-Src is upregulated. We propose that the Src-Fer axis represents a new therapeutic target for treatment of a subset of human cancers.
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Affiliation(s)
- C Oneyama
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Y Yoshikawa
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Y Ninomiya
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - T Iino
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - S Tsukita
- Laboratory of Biological Science, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, Osaka, Japan
| | - M Okada
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
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Dabir S, Kluge A, Kresak A, Yang M, Fu P, Groner B, Wildey G, Dowlati A. Low PIAS3 expression in malignant mesothelioma is associated with increased STAT3 activation and poor patient survival. Clin Cancer Res 2014; 20:5124-32. [PMID: 25124686 DOI: 10.1158/1078-0432.ccr-14-1233] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Deregulation of STAT3 activation is a hallmark of many cancer cells, and the underlying mechanisms are subject to intense investigation. We examined the extent of PIAS3 expression in mesothelioma cells and human tumor samples and determined the functional effects of PIAS3 expression on STAT3 signaling. EXPERIMENTAL DESIGN We evaluated the expression of PIAS3 in mesothelioma tumors from patients and correlated the expression levels with the course of the disease. We also measured the effects of enhanced PIAS3 activity on STAT3 signaling, cellular growth, and viability in cultured mesothelioma cells. RESULTS Gene expression databases revealed that mesotheliomas have the lowest levels of PIAS3 transcripts among solid tumors. PIAS3 expression in human mesothelioma tumors is significantly correlated with overall survival intervals (P = 0.058). The high expression of PIAS3 is predictive of a favorable prognosis and decreases the probability of death within one year after diagnosis by 44%. PIAS3 expression is functionally linked to STAT3 activation in mesothelioma cell lines. STAT3 downregulation with siRNA or enhanced expression of PIAS3 both inhibited mesothelioma cell growth and induced apoptosis. Mesothelioma cells are sensitive to curcumin and respond by the induction of PIAS3. Corroborative evidence has been obtained from STAT3 inhibition experiments. Exposure of the cells to a peptide derived from the PIAS3 protein that interferes with STAT3 function resulted in apoptosis induction and the inhibition of cell growth. CONCLUSION These results suggest that PIAS3 protein expression impacts survival in patients with mesothelioma and that PIAS3 activation could become a therapeutic strategy. Clin Cancer Res; 20(19); 5124-32. ©2014 AACR.
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Affiliation(s)
- Snehal Dabir
- Division of Hematology and Oncology, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Amy Kluge
- Division of Hematology and Oncology, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Adam Kresak
- Division of Pathology, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Michael Yang
- Division of Pathology, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Pingfu Fu
- Division of Biostatistics, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Bernd Groner
- Institute for Biomedical Research, Georg-Speyer-Haus, Frankfurt, Germany
| | - Gary Wildey
- Division of Hematology and Oncology, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Afshin Dowlati
- Division of Hematology and Oncology, Case Comprehensive Cancer Center and University Hospitals Case Medical Center, Cleveland, Ohio.
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Onda M, Ghoreschi K, Steward-Tharp S, Thomas C, O'Shea JJ, Pastan IH, FitzGerald DJ. Tofacitinib suppresses antibody responses to protein therapeutics in murine hosts. J Immunol 2014; 193:48-55. [PMID: 24890727 PMCID: PMC4106678 DOI: 10.4049/jimmunol.1400063] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Immunogenicity remains the "Achilles' heel" of protein-based therapeutics. Anti-drug Abs produced in response to protein therapeutics can severely limit both the safety and efficacy of this expanding class of agent. In this article, we report that monotherapy of mice with tofacitinib (the JAK inhibitor) quells Ab responses to an immunotoxin derived from the bacterial protein Pseudomonas exotoxin A, as well as to the model Ag keyhole limpet hemocyanin. Thousand-fold reductions in IgG1 titers to both Ags were observed 21 d post immunization. In fact, suppression was evident for all IgG isotypes and IgM. A reduction in IgG3 production was also noted with a thymus-independent type II Ag. Mechanistic investigations revealed that tofacitinib treatment led to reduced numbers of CD127+ pro-B cells. Furthermore, we observed fewer germinal center B cells and the impaired formation of germinal centers of mice treated with tofacitinib. Because normal Ig levels were still present during tofacitinib treatment, this agent specifically reduced anti-drug Abs, thus preserving the potential efficacy of biological therapeutics, including those used as cancer therapeutics.
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Affiliation(s)
- Masanori Onda
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892;
| | - Kamran Ghoreschi
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Scott Steward-Tharp
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Craig Thomas
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD 20892
| | - John J O'Shea
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Ira H Pastan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - David J FitzGerald
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
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Lu Y, Zheng L, Zhang W, Feng T, Liu J, Wang X, Yu Y, Qi M, Zhao W, Yu X, Tang W. Growth factor progranulin contributes to cervical cancer cell proliferation and transformation in vivo and in vitro. Gynecol Oncol 2014; 134:364-71. [PMID: 24905774 DOI: 10.1016/j.ygyno.2014.05.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 05/21/2014] [Accepted: 05/25/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The growth factor progranulin (PGRN) is overexpressed in a number of tumors. We aimed to investigate the expression and role of PGRN in cervical cancer tumorigenesis. METHODS PGRN expression and secretion was assessed in cells and normal and cancerous cervical tissues by Western blot analysis, ELISA or immunohistochemistry. The role of PGRN in cervical carcinogenesis was explored by cell-proliferation, colony-formation and tumor-growth assays. We assessed the role of PGRN-mediated signaling in the cervical cell with specific inhibitors. RESULTS PGRN expression was upregulated in cervical cancer cell lines and tissue. PGRN promoted the transformation of human cervical mucosa epithelial H8 cells in vitro and tumor formation in vivo. Knockdown of PGRN expression in cervical cancer cells in vivo decreased cell proliferation and slowed tumor growth. PGRN stimulated cervical cell proliferation, and transformation was mediated, at least in part, by Akt and Erk signaling. CONCLUSIONS PGRN is overexpressed in cervical cancer and promotes the malignant growth and transformation of cervical cells. Therefore, PGRN plays a critical role in carcinogenesis of cervical cancer and shows promise for therapeutic strategies for cervical cancer.
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Affiliation(s)
- Yi Lu
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China; Department of Biochemistry and Molecular Biology, Shandong University School of Medicine, Jinan, China
| | - Lin Zheng
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China; Microbiological Lab, The Affiliated Hospital of School of Medicine of Ningbo University, Ningbo, China
| | - Wen Zhang
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China
| | - Tingting Feng
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China
| | - Juan Liu
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China
| | - Xiao Wang
- Department of Pathology, Shandong University School of Medicine, Jinan, China
| | - Yuan Yu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China
| | - Mei Qi
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China
| | - Weiming Zhao
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China
| | - Xiuping Yu
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China.
| | - Wei Tang
- Department of Medical Microbiology, Shandong University School of Medicine, Jinan, China.
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Zhou S, Liu L, Li H, Eilers G, Kuang Y, Shi S, Yan Z, Li X, Corson JM, Meng F, Zhou H, Sheng Q, Fletcher JA, Ou WB. Multipoint targeting of the PI3K/mTOR pathway in mesothelioma. Br J Cancer 2014; 110:2479-88. [PMID: 24762959 PMCID: PMC4021537 DOI: 10.1038/bjc.2014.220] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/20/2014] [Accepted: 03/27/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Mesothelioma is a notoriously chemotherapy-resistant neoplasm, as is evident in the dismal overall survival for patients with those of asbestos-associated disease. We previously demonstrated co-activation of multiple receptor tyrosine kinases (RTKs), including epidermal growth factor receptor (EGFR), MET, and AXL in mesothelioma cell lines, suggesting that these kinases could serve as novel therapeutic targets. Although clinical trials have not shown activity for EGFR inhibitors in mesothelioma, concurrent inhibition of various activated RTKs has pro-apoptotic and anti-proliferative effects in mesothelioma cell lines. Thus, we hypothesised that a coordinated network of multi-RTK activation contributes to mesothelioma tumorigenesis. METHODS Activation of PI3K/AKT/mTOR, Raf/MAPK, and co-activation of RTKs were evaluated in mesotheliomas. Effects of RTK and downstream inhibitors/shRNAs were assessed by measuring mesothelioma cell viability/growth, apoptosis, activation of signalling intermediates, expression of cell-cycle checkpoints, and cell-cycle alterations. RESULTS We demonstrate activation of the PI3K/AKT/p70S6K and RAF/MEK/MAPK pathways in mesothelioma, but not in non-neoplastic mesothelial cells. The AKT activation, but not MAPK activation, was dependent on coordinated activation of RTKs EGFR, MET, and AXL. In addition, PI3K/AKT/mTOR pathway inhibition recapitulated the anti-proliferative effects of concurrent inhibition of EGFR, MET, and AXL. Dual targeting of PI3K/mTOR by BEZ235 or a combination of RAD001 and AKT knockdown had a greater effect on mesothelioma proliferation and viability than inhibition of individual activated RTKs or downstream signalling intermediates. Inhibition of PI3K/AKT was also associated with MDM2-p53 cell-cycle regulation. CONCLUSIONS These findings show that PI3K/AKT/mTOR is a crucial survival pathway downstream of multiple activated RTKs in mesothelioma, underscoring that PI3K/mTOR is a compelling target for therapeutic intervention.
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Affiliation(s)
- S Zhou
- 1] Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China [2] Department of Bioengineering, College of Biology and Chemical Engineering, Jiaxing University, Jiaxing, China
| | - L Liu
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - H Li
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - G Eilers
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Y Kuang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - S Shi
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - Z Yan
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - X Li
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - J M Corson
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - F Meng
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - H Zhou
- Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China
| | - Q Sheng
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
| | - J A Fletcher
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - W-B Ou
- 1] Zhejiang Provincial Key Laboratory of Applied Enzymology, Department of Biotechnology and Biomedicine, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, China [2] Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA [3] Department of Biochemistry and Molecular Biology, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, China
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Abstract
Recombinant immunotoxins (RIT) are agents being developed for cancer treatment. They are composed of an Fv that binds to a cancer cell, fused to a 38-kDa fragment of Pseudomonas exotoxin A. SS1P is a RIT that targets mesothelin, a protein expressed on mesothelioma as well as pancreatic, ovarian, lung, and other cancers. Because the protein tyrosine kinase family regulates a variety of cellular processes and pathways, we hypothesized that tyrosine kinases might regulate susceptibility to immunotoxin killing. To investigate their role, we used siRNAs to lower the level of expression of the 88 known tyrosine kinases. We identified five tyrosine kinases, INSR, HCK, SRC, PDGFRβ, and BMX that enhance the activity of SS1P when their level of expression is lowered by siRNAs. We further investigated the Src family member HCK in this study. Knocking down of SRC slightly increased SS1P killing in A431/H9 cells, but knocking down HCK substantially enhanced killing by SS1P. We investigated the mechanism of enhancement and found that HCK knockdown enhanced SS1P cleavage by furin and lowered levels of Mcl-1 and raised Bax. We then found that Src inhibitors mimic the stimulatory effect of HCK knockdown; both SU6656 and SKI-606 (bosutinib) enhanced immunotoxin killing of mesothelin-expressing cells by SS1P and CD22-expressing cells by HA22 (moxetumomab pasudotox). SU6656 also enhanced the antitumor effects of SS1P and HA22 in mouse xenograft tumor models. Our data suggest that the combination of immunotoxin with tyrosine kinase inhibitors may be an effective way to treat some cancers.
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Affiliation(s)
- Xiu-Fen Liu
- Corresponding Author: Ira Pastan, Laboratory of Molecular Biology, 37 Convent Drive, Room 5106, National Cancer Institute, Bethesda, MD 20892-4264.
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Menges CW, Kadariya Y, Altomare D, Talarchek J, Neumann-Domer E, Wu Y, Xiao GH, Shapiro IM, Kolev VN, Pachter JA, Klein-Szanto AJ, Testa JR. Tumor suppressor alterations cooperate to drive aggressive mesotheliomas with enriched cancer stem cells via a p53-miR-34a-c-Met axis. Cancer Res 2013; 74:1261-1271. [PMID: 24371224 DOI: 10.1158/0008-5472.can-13-2062] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Malignant mesothelioma is a highly aggressive, asbestos-related cancer frequently marked by mutations of both NF2 and CDKN2A. We demonstrate that germline knockout of one allele of each of these genes causes accelerated onset and progression of asbestos-induced malignant mesothelioma compared with asbestos-exposed Nf2(+/-) or wild-type mice. Ascites from some Nf2(+/-);Cdkn2a(+/-) mice exhibited large tumor spheroids, and tail vein injections of malignant mesothelioma cells established from these mice, but not from Nf2(+/-) or wild-type mice, produced numerous tumors in the lung, suggesting increased metastatic potential of tumor cells from Nf2(+/-);Cdkn2a(+/-) mice. Intraperitoneal injections of malignant mesothelioma cells derived from Nf2(+/-);Cdkn2a(+/-) mice into severe combined immunodeficient mice produced tumors that penetrated the diaphragm and pleural cavity and harbored increased cancer stem cells (CSC). Malignant mesothelioma cells from Nf2(+/-);Cdkn2a(+/-) mice stained positively for CSC markers and formed CSC spheroids in vitro more efficiently than counterparts from wild-type mice. Moreover, tumor cells from Nf2(+/-);Cdkn2a(+/-) mice showed elevated c-Met expression/activation, which was partly dependent on p53-mediated regulation of miR-34a and required for tumor migration/invasiveness and maintenance of the CSC population. Collectively, these studies demonstrate in vivo that inactivation of Nf2 and Cdkn2a cooperate to drive the development of highly aggressive malignant mesotheliomas characterized by enhanced tumor spreading capability and the presence of a CSC population associated with p53/miR-34a-dependent activation of c-Met. These findings suggest that cooperativity between losses of Nf2 and Cdkn2a plays a fundamental role in driving the highly aggressive tumorigenic phenotype considered to be a hallmark of malignant mesothelioma.
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Affiliation(s)
- Craig W Menges
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Yuwaraj Kadariya
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Deborah Altomare
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32827
| | | | | | - Yue Wu
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111.,Cancer Research Institute, Southern Medical University, Guangdong Province, PR China
| | - Guang-Hui Xiao
- Cancer Research Institute, Southern Medical University, Guangdong Province, PR China
| | | | | | | | | | - Joseph R Testa
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, PA 19111
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Kawakami M, Ishikawa R, Amano Y, Sunohara M, Watanabe K, Ohishi N, Yatomi Y, Nakajima J, Fukayama M, Nagase T, Takai D. Detection of novel paraja ring finger 2-fer tyrosine kinase mRNA chimeras is associated with poor postoperative prognosis in non-small cell lung cancer. Cancer Sci 2013; 104:1447-54. [PMID: 23931849 DOI: 10.1111/cas.12250] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 07/08/2013] [Accepted: 08/01/2013] [Indexed: 12/18/2022] Open
Abstract
Previously, we reported that the overexpression of fer tyrosine kinase (FER), a non-receptor tyrosine kinase, is correlated with poor postoperative prognosis and cancer-cell survival in non-small cell lung cancer (NSCLC). In the present study, we further analyzed FER-overexpressed NSCLC cases and identified various patterns of chimeric mRNAs, composed of paraja ring finger 2 (PJA2) and FER. We detected no genomic rearrangements between PJA2 and FER and attributed these chimeric mRNAs to alterations at the transcriptome level: i.e., trans-splicing. Several chimeric patterns were detected concurrently in each patient, and the pattern sets varied among patients, although the pattern in which PJA2 exon 1 was fused to FER exon 3 (designated as Pe1-Fe3 mRNA) was detected constantly. Therefore, in a wide screening for PJA2-FER mRNAs in NSCLC, we focused on this chimeric pattern as a representative chimera. In analyses of 167 NSCLC samples, Pe1-Fe3 mRNA was identified in about 10% of the patients, and the presence of chimeric mRNA was significantly correlated with a high expression level of parental FER mRNA. Furthermore, we found that the detection of Pe1-Fe3 mRNA was correlated with poor postoperative survival periods in NSCLC, consistent with a previous finding in which FER overexpression was correlated with poor postoperative prognosis in NSCLC. This report is the first to suggest a correlation between chimeric mRNA and the expression level of parental mRNA. Furthermore, our findings may be clinically beneficial, suggesting that PJA2-FER mRNAs might serve as a novel prognostic biomarker in NSCLC.
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Affiliation(s)
- Masanori Kawakami
- Department of Respiratory Medicine, The University of Tokyo Hospital, Tokyo, Japan; Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
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Kawakami M, Morita S, Sunohara M, Amano Y, Ishikawa R, Watanabe K, Hamano E, Ohishi N, Nakajima J, Yatomi Y, Nagase T, Fukayama M, Takai D. FER overexpression is associated with poor postoperative prognosis and cancer-cell survival in non-small cell lung cancer. Int J Clin Exp Pathol 2013; 6:598-612. [PMID: 23573306 PMCID: PMC3606849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 02/16/2013] [Indexed: 06/02/2023]
Abstract
Here, we show that overexpression of fer tyrosine kinase (FER), a non-receptor tyrosine kinase, predicts poor postoperative outcome and might be involved in cancer-cell survival in non-small cell lung cancer (NSCLC). Systematic screening using in silico analyses and quantitative RT-PCR revealed that FER was overexpressed in about 10% of NSCLC patients. Evaluation of FER expression using immunohistochemistry (IHC) on tissue microarrays was consistent with the mRNA level detected using quantitative RT-PCR. In analyses of 135 NSCLC patients who had undergone potential curative resection, we found that FER overexpression detected using IHC had no association with clinicopathological features such as age, sex, smoking history, histological type, disease stage, T factor, N factor, adjuvant chemotherapy history, or EGFR mutation, but was correlated with poor postoperative survival periods. A multivariate Cox regression analysis showed that this prognostic impact was independent of other clinicopathological features. In functional analyses of FER in vitro, FER exhibited a transforming activity, suggesting that it possesses oncogenic functions. We also found that human lung cancer NCI-H661 cells, which exhibited FER-outlier expression, were led to apoptosis by the knockdown of FER using RNA interference. FER overexpression might serve as a prognostic biomarker and be involved in cancer-cell survival in NSCLC.
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Affiliation(s)
- Masanori Kawakami
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
- Department of Clinical Laboratory, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Shigeki Morita
- Department of Pathology, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Mitsuhiro Sunohara
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Yosuke Amano
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Rie Ishikawa
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Kousuke Watanabe
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Emi Hamano
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Nobuya Ohishi
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Jun Nakajima
- Department of Cardiothoracic Surgery, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Yutaka Yatomi
- Department of Clinical Laboratory, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Masashi Fukayama
- Department of Pathology, The University of Tokyo HospitalTokyo 113-8655, Japan
| | - Daiya Takai
- Department of Clinical Laboratory, The University of Tokyo HospitalTokyo 113-8655, Japan
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Sato A, Sekine M, Virgona N, Ota M, Yano T. Yes is a central mediator of cell growth in malignant mesothelioma cells. Oncol Rep 2012; 28:1889-93. [PMID: 22948717 DOI: 10.3892/or.2012.2010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 06/12/2012] [Indexed: 12/11/2022] Open
Abstract
The constitutive activation of the Src family kinases (SFKs) has been established as a poor prognostic factor in malignant mesothelioma (MM), however, the family member(s) which contribute to the malignancy have not been defined. This study aimed to identify the SFK member(s) contributing to cell growth using RNA interference in various MM cell lines. Silencing of Yes but not of c-Src or Fyn in MM cells leads to cell growth suppression. This suppressive effect caused by Yes silencing mainly depends on G1 cell cycle arrest and partly the induction of apoptosis. Also, the knockout of Yes induces the inactivation of β-catenin signaling and subsequently decreases the levels of cyclin D necessary for G1-S transition in the cell cycle. In addition, Yes knockout has less effect on cell growth suppression in β-catenin-deficient H28 MM cells compared to other MM cells which express the catenin. Overall, we conclude that Yes is a central mediator for MM cell growth that is not shared with other SFKs such as c-Src.
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Affiliation(s)
- Ayami Sato
- Faculty of Life Sciences, Toyo University, Itakura, Oura, Gunma 374-0193, Japan
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Menges CW, Sementino E, Talarchek J, Xu J, Chernoff J, Peterson JR, Testa JR. Group I p21-activated kinases (PAKs) promote tumor cell proliferation and survival through the AKT1 and Raf-MAPK pathways. Mol Cancer Res 2012; 10:1178-88. [PMID: 22798428 DOI: 10.1158/1541-7786.mcr-12-0082] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Group I p21-activated kinases (PAK) are important effectors of the small GTPases Rac and Cdc42, which regulate cell motility/migration, survival, proliferation, and gene transcription. Hyperactivation of these kinases have been reported in many tumor types, making PAKs attractive targets for therapeutic intervention. PAKs are activated by growth factor-mediated signaling and are negatively regulated by the tumor suppressor neurofibromatosis type 2 (NF2)/Merlin. Thus, tumors characterized by NF2 inactivation would be expected to show hyperactivated PAK signaling. On the basis of this rationale, we evaluated the status of PAK signaling in malignant mesothelioma, an aggressive neoplasm that is resistant to current therapies and shows frequent inactivation of NF2. We show that group I PAKs are activated in most mesotheliomas and mesothelioma cell lines and that genetic or pharmacologic inhibition of PAKs is sufficient to inhibit mesothelioma cell proliferation and survival. We also identify downstream effectors and signaling pathways that may contribute mechanistically to PAK-related tumorigenesis. Specifically, we show that inhibition of PAK results in attenuation of AKT and Raf-MAPK signaling and decreased tumor cell viability. Collectively, these data suggest that pharmacologic inhibition of group I PAKs may have therapeutic efficacy in tumors characterized by PAK activation.
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Affiliation(s)
- Craig W Menges
- Cancer Biology Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
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Kondo T, Kubota D, Kawai A. Application of proteomics to soft tissue sarcomas. Int J Proteomics 2012; 2012:876401. [PMID: 22778956 DOI: 10.1155/2012/876401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 04/21/2012] [Indexed: 01/27/2023]
Abstract
Soft tissue sarcomas are rare and account for less than 1% of all malignant cancers. Other than development of intensive therapies, the clinical outcome of patients with soft tissue sarcoma remains very poor, particularly when diagnosed at a late stage. Unique mutations have been associated with certain soft tissue sarcomas, but their etiologies remain unknown. The proteome is a functional translation of a genome, which directly regulates the malignant features of tumors. Thus, proteomics is a promising approach for investigating soft tissue sarcomas. Various proteomic approaches and clinical materials have been used to address clinical and biological issues, including biomarker development, molecular target identification, and study of disease mechanisms. Several cancer-associated proteins have been identified using conventional technologies such as 2D-PAGE, mass spectrometry, and array technology. The functional backgrounds of proteins identified were assessed extensively using in vitro experiments, thus supporting expression analysis. These observations demonstrate the applicability of proteomics to soft tissue sarcoma studies. However, the sample size in each study was insufficient to allow conclusive results. Given the low frequency of soft tissue sarcomas, multi-institutional collaborations are required to validate the results of proteomic approaches.
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Hosako M, Muto T, Nakamura Y, Tsuta K, Tochigi N, Tsuda H, Asamura H, Tomonaga T, Kawai A, Kondo T. Proteomic study of malignant pleural mesothelioma by laser microdissection and two-dimensional difference gel electrophoresis identified cathepsin D as a novel candidate for a differential diagnosis biomarker. J Proteomics 2012; 75:833-44. [DOI: 10.1016/j.jprot.2011.09.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 08/29/2011] [Accepted: 09/28/2011] [Indexed: 11/17/2022]
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Brevet M, Shimizu S, Bott MJ, Shukla N, Zhou Q, Olshen AB, Rusch V, Ladanyi M. Coactivation of receptor tyrosine kinases in malignant mesothelioma as a rationale for combination targeted therapy. J Thorac Oncol 2011; 6:864-74. [PMID: 21774103 DOI: 10.1097/jto.0b013e318215a07d] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION To identify new therapeutic approaches in malignant mesothelioma (MM), we examined the expression and activation of receptor tyrosine kinases (RTKs) and the effects of specific RTK inhibitors and the mammalian target of rapamycin (mTOR) inhibitor rapamycin; the latter being of special interest in MM given the recent linkage between NF2 loss and mTOR activation. METHODS We performed a screen for mutated or activated RTKs in 14 MM cell lines and 70 primary tumors. Expression of phosphorylated RTKs was analyzed by Western blotting and a membrane-based antibody array in normal growth conditions and after treatment by specific inhibitors. MET and epidermal growth factor receptor (EGFR) mutations were screened by sequencing. MET, hepatocyte growth factor, insulin-like growth factor 1 receptor, and EGFR expression were studied by Western blotting, immunohistochemistry, enzyme-linked immunosorbent assay, and by Affymetrix expression microarrays. RESULTS Profiling of the phosphorylation status of 42 RTKs showed prominent coactivation of MET and EGFR in 8 of 14 (57%) MM cell lines. MET, EGFR, and insulin-like growth factor 1 receptor were the main RTKs activated after mTOR inhibition and contributed to AKT feedback activation. Knockdown of MET by RNA interference inhibited not only the phosphorylation of MET but also that of EGFR. Conversely, stimulation with hepatocyte growth factor increased both phospho-MET and phospho-EGFR. The combination of PHA-665752 and the EGFR inhibitor, erlotinib, suppressed cell growth more than either agent alone in three of six cell lines tested. Finally, combinations of rapamycin and different RTK inhibitors were more active than either drug alone in 12 of 13 cell lines. CONCLUSION Combination targeting of kinase signaling pathways is more effective than single agents in most MM.
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Hassanein M, Rahman JS, Chaurand P, Massion PP. Advances in proteomic strategies toward the early detection of lung cancer. Ann Am Thorac Soc 2011; 8:183-8. [PMID: 21543799 DOI: 10.1513/pats.201012-069MS] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Since the advent of the new proteomics era more than a decade ago, large-scale studies of protein profiling have been exploited to identify the distinctive molecular signatures in a wide array of biological systems spanning areas of basic biological research, various disease states, and biomarker discovery directed toward therapeutic applications. Recent advances in protein separation and identification techniques have significantly improved proteomics approaches, leading to enhancement of the depth and breadth of proteome coverage. Proteomic signatures specific for invasive lung cancer and preinvasive lesions have begun to emerge. In this review we provide a critical assessment of the state of recent advances in proteomic approaches and the biological lessons they have yielded, with specific emphasis on the discovery of biomarker signatures for the early detection of lung cancer.
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Abstract
Pleural malignancies, including primary malignant pleural mesothelioma and secondary pleural metastasis of various tumours resulting in malignant pleural effusion, are frequent and lethal diseases that deserve devoted translational research efforts for improvements to be introduced to the clinic. This paper highlights select clinical advances that have been accomplished recently and that are based on preclinical research on pleural malignancies. Examples are the establishment of folate antimetabolites in mesothelioma treatment, the use of PET in mesothelioma management and the discovery of mesothelin as a marker of mesothelioma. In addition to established translational advances, this text focuses on recent research findings that are anticipated to impact clinical pleural oncology in the near future. Such progress has been substantial, including the development of a genetic mouse model of mesothelioma and of transplantable models of pleural malignancies in immunocompetent hosts, the deployment of stereological and imaging methods for integral assessment of pleural tumour burden, as well as the discovery of the therapeutic potential of aminobiphosphonates, histone deacetylase inhibitors and ribonucleases against malignant pleural disease. Finally, key obstacles to overcome towards a more rapid advancement of translational research in pleural malignancies are outlined. These include the dissection of cell-autonomous and paracrine pathways of pleural tumour progression, the study of mesothelioma and malignant pleural effusion separately from other tumours at both the clinical and preclinical levels, and the expansion of tissue banks and consortia of clinical research of pleural malignancies.
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Indovina P, Giorgi F, Rizzo V, Khadang B, Schenone S, Di Marzo D, Forte IM, Tomei V, Mattioli E, D'Urso V, Grilli B, Botta M, Giordano A, Pentimalli F. New pyrazolo[3,4-d]pyrimidine SRC inhibitors induce apoptosis in mesothelioma cell lines through p27 nuclear stabilization. Oncogene 2012; 31:929-38. [PMID: 21785466 DOI: 10.1038/onc.2011.286] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Malignant mesothelioma (MM) is a highly aggressive tumor of the serous membranes for which there is currently no effective curative modality. Recent data suggest that hyperactivation of the tyrosine kinase SRC has a key role in MM development and therefore this kinase represents an important molecular target for MM therapy. We tested new pyrazolo[3,4-d]pyrimidine SRC inhibitors on a panel of MM cell lines expressing the active form of SRC. These SRC inhibitors exerted a significant proapoptotic effect on MM cells without affecting the normal mesothelial cell line MET-5A, supporting a possible use of these SRC inhibitors for a safe treatment of MM. We also showed that SRC inhibitor-induced apoptosis occurred concomitantly with an increase in the nuclear stability of the cyclin-dependent kinase inhibitor p27. This finding is remarkable considering that loss of nuclear p27 expression is a well-established adverse prognostic factor in MM, and p27 nuclear localization is crucial for its tumor-suppressive function. Consistently, SRC inhibition seems to promote the increase in p27 nuclear level also by inactivating the AKT kinase and downregulating cyclin D1, which would otherwise delay p27 nuclear import and provoke its cytoplasmic accumulation. To determine whether p27 stabilization has a direct role in apoptosis induced by SRC inhibition, we stably silenced the CDKN1B gene, encoding p27, in MSTO-211H and REN mesothelioma cells by transduction with lentiviral vectors expressing short hairpin RNAs against the CDKN1B transcript. Strikingly, p27 silencing was able to suppress the apoptosis induced by these SRC inhibitors in both MM cell lines, suggesting that p27 has a crucial proapoptotic role in MM cells treated with SRC inhibitors. Our findings reveal a new mechanism, dependent on p27 nuclear stabilization, by which SRC inhibition can induce apoptosis in MM cells and provide a new rationale for the use of SRC inhibitors in MM therapy.
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Toh H, Chitramuthu BP, Bennett HP, Bateman A. Structure, function, and mechanism of progranulin; the brain and beyond. J Mol Neurosci 2011; 45:538-48. [PMID: 21691802 DOI: 10.1007/s12031-011-9569-4] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 05/31/2011] [Indexed: 12/13/2022]
Abstract
Mutation of human GRN, the gene encoding the secreted glycoprotein progranulin, results in a form of frontotemporal lobar degeneration that is characterized by the presence of ubiquitinated inclusions containing phosphorylated and cleaved fragments of the transactivation response element DNA-binding protein-43. This has stimulated interest in understanding the role of progranulin in the central nervous system, and in particular, how this relates to neurodegeneration. Progranulin has many roles outside the brain, including regulation of cellular proliferation, survival, and migration, in cancer, including cancers of the brain, in wound repair, and inflammation. It often acts through the extracellular signal-regulated kinase and phopshatidylinositol-3-kinases pathways. The neurobiology of progranulin has followed a similar pattern with proposed roles for progranulin (PGRN) in the central nervous system as a neuroprotective agent and in neuroinflammation. Here we review the structure, biology, and mechanism of progranulin action. By understanding PGRN in a wider context, we may be better able to delineate its roles in the normal brain and in neurodegenerative disease.
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Shukla A, Barrett TF, MacPherson MB, Hillegass JM, Fukagawa NK, Swain WA, O'Byrne KJ, Testa JR, Pass HI, Faux SP, Mossman BT. An extracellular signal-regulated kinase 2 survival pathway mediates resistance of human mesothelioma cells to asbestos-induced injury. Am J Respir Cell Mol Biol 2011; 45:906-14. [PMID: 21454801 DOI: 10.1165/rcmb.2010-0282oc] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We hypothesized that normal human mesothelial cells acquire resistance to asbestos-induced toxicity via induction of one or more epidermal growth factor receptor (EGFR)-linked survival pathways (phosphoinositol-3-kinase/AKT/mammalian target of rapamycin and extracellular signal-regulated kinase [ERK] 1/2) during simian virus 40 (SV40) transformation and carcinogenesis. Both isolated HKNM-2 mesothelial cells and a telomerase-immortalized mesothelial line (LP9/TERT-1) were more sensitive to crocidolite asbestos toxicity than an SV40 Tag-immortalized mesothelial line (MET5A) and malignant mesothelioma cell lines (HMESO and PPM Mill). Whereas increases in phosphorylation of AKT (pAKT) were observed in MET5A cells in response to asbestos, LP9/TERT-1 cells exhibited dose-related decreases in pAKT levels. Pretreatment with an EGFR phosphorylation or mitogen-activated protein kinase kinase 1/2 inhibitor abrogated asbestos-induced phosphorylated ERK (pERK) 1/2 levels in both LP9/TERT-1 and MET5A cells as well as increases in pAKT levels in MET5A cells. Transient transfection of small interfering RNAs targeting ERK1, ERK2, or AKT revealed that ERK1/2 pathways were involved in cell death by asbestos in both cell lines. Asbestos-resistant HMESO or PPM Mill cells with high endogenous levels of ERKs or AKT did not show dose-responsive increases in pERK1/ERK1, pERK2/ERK2, or pAKT/AKT levels by asbestos. However, small hairpin ERK2 stable cell lines created from both malignant mesothelioma lines were more sensitive to asbestos toxicity than shERK1 and shControl lines, and exhibited unique, tumor-specific changes in endogenous cell death-related gene expression. Our results suggest that EGFR phosphorylation is causally linked to pERK and pAKT activation by asbestos in normal and SV40 Tag-immortalized human mesothelial cells. They also indicate that ERK2 plays a role in modulating asbestos toxicity by regulating genes critical to cell injury and survival that are differentially expressed in human mesotheliomas.
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Affiliation(s)
- Arti Shukla
- Department of Pathology, University of Vermont College of Medicine, Burlington, 05405, USA
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