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Sun Z, Gu C, Wang X, Shang A, Quan W, Wu J, Ji P, Yao Y, Liu W, Li D. A novel bivalent anti-c-MET/PD-1 bispecific antibody exhibits potent cytotoxicity against c-MET/PD-L1-positive colorectal cancer. Invest New Drugs 2023; 41:737-750. [PMID: 37646958 DOI: 10.1007/s10637-023-01381-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/04/2023] [Indexed: 09/01/2023]
Abstract
Previously, we generated a novel bispecific antibody (BsAb) simultaneously targeting both c-MET and PD-1 (PDCD1), which can bridge T cells and c-MET positive tumor cells. However, the specific mechanisms and antitumor activities of the BsAb against c-MET/PD-L1 (CD274) positive colorectal cancer (CRC) is not completely understood. In this study, in addition to the tumor intrinsic mechanism investigation with molecular biology assay in vitro, a humanized mouse model was used to evaluate antitumor activity of the BsAb in vivo. The BsAb could inhibit c-MET/PD-L1+ CRC cell migration and show strong antitumor activity against HCT116 tumors in mice, potentially by inducing the degradation of c-MET protein in a dose and time-dependent manner. The BsAb could suppress the phosphorylation of c-MET downstream proteins GRB2-associated-binding protein 1 (Gab1) and focal adhesion kinase (FAK). Considering the tumor extrinsic mechanism, the BsAb may promote phagocytosis of macrophage. Furthermore, the level of plasma exosomal-c-MET/PD-L1 is able to distinguish CRC patients from healthy controls. In summary, the BsAb exhibited potent anti-tumor activities by two distinguished mechanisms: inhibition of c-MET signal transduction and promotion of macrophage-mediated phagocytosis. Our BsAb may provide a novel therapeutic agent for patients with c-MET/PD-L1+ CRC, and the status of exosomal-c-MET/PD-L1 can serve as a biomarker to predict responsiveness to treatment of our BsAb.
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Affiliation(s)
- Z Sun
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - C Gu
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - X Wang
- Department of Pharmacy, Putuo People's Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - A Shang
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
- Department of Laboratory Medicine, The Second People's Hospital of Lianyungang, Lianyungang, 222006, China
| | - W Quan
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - J Wu
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - P Ji
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Y Yao
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - W Liu
- Department of General Surgery, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China.
| | - D Li
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China.
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Altintas DM, Comoglio PM. An Observatory for the MET Oncogene: A Guide for Targeted Therapies. Cancers (Basel) 2023; 15:4672. [PMID: 37760640 PMCID: PMC10526818 DOI: 10.3390/cancers15184672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
The MET proto-oncogene encodes a pivotal tyrosine kinase receptor, binding the hepatocyte growth factor (HGF, also known as scatter factor, SF) and governing essential biological processes such as organogenesis, tissue repair, and angiogenesis. The pleiotropic physiological functions of MET explain its diverse role in cancer progression in a broad range of tumors; genetic/epigenetic alterations of MET drive tumor cell dissemination, metastasis, and acquired resistance to conventional and targeted therapies. Therefore, targeting MET emerged as a promising strategy, and many efforts were devoted to identifying the optimal way of hampering MET signaling. Despite encouraging results, however, the complexity of MET's functions in oncogenesis yields intriguing observations, fostering a humbler stance on our comprehension. This review explores recent discoveries concerning MET alterations in cancer, elucidating their biological repercussions, discussing therapeutic avenues, and outlining future directions. By contextualizing the research question and articulating the study's purpose, this work navigates MET biology's intricacies in cancer, offering a comprehensive perspective.
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Affiliation(s)
| | - Paolo M. Comoglio
- IFOM ETS—The AIRC Institute of Molecular Oncology, 20139 Milano, Italy;
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3
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Xiong Y, Cao Q, Guo Y, Liu X, Zhu X, Dai B, Zhu B. Case report: Savolitinib induced severe adverse reactions resembling septic shock in an HIV-1-positive patient with advanced non-small cell lung cancer. Front Pharmacol 2023; 14:1089184. [PMID: 36817157 PMCID: PMC9932794 DOI: 10.3389/fphar.2023.1089184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Savolitinib, a small-molecule inhibitor of the receptor tyrosine kinase mesenchymal-epithelial transition (MET) factor, was approved for the treatment of non-small cell lung cancer (NSCLC) by the China National Medical Products Administration in June 2021. Its safety for NSCLC treatment has been confirmed in several prospective cohort studies. Herein, we report a rare case of shock, a serious adverse event, after treatment with savolitinib in an HIV-1-positive patient with advanced NSCLC. A 38-year-old man with an 8-year history of HIV-1 positivity was diagnosed with NSCLC 5 years ago; the lung cancer recurred after surgical resection. Despite chemotherapy, immunotherapy, and targeted therapy, tumor progression continued. He received savolitinib because of MET amplification. In the first 2 weeks of savolitinib use, he developed a mild rash on his trunk. In the following month, he was hospitalized for fever and circulatory shock thrice after taking savolitinib 400 mg. He had no urticaria or eosinophilia. During the three hospitalizations, he was negative for pathogens. His condition gradually improved after treatment with antibiotics, steroids, and vasopressors. Attention should be paid to the occurrence of septic shock-like presentations when using savolitinib in HIV-1 patients with NSCLC.
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Therapeutic Strategies for Ovarian Cancer in Point of HGF/c-MET Targeting. Medicina (B Aires) 2022; 58:medicina58050649. [PMID: 35630066 PMCID: PMC9147666 DOI: 10.3390/medicina58050649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/09/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022] Open
Abstract
Ovarian cancer is the fifth leading cause of cancer deaths in women and is regarded as one of the most difficult cancers to treat. Currently, studies are being conducted to develop therapeutic agents for effective treatment of ovarian cancer. In this review, we explain the properties of the hepatocyte growth factor (HGF)/mesenchymal-epithelial transition factor (c-MET) and how the signaling pathway of HGF/c-MET is activated in different cancers and involved in tumorigenesis and metastasis of ovarian cancer. We present the findings of clinical studies using small chemicals or antibodies targeting HGF/c-MET signaling in various cancer types, particularly in ovarian cancer. We also discuss that HGF/c-MET-targeted therapy, when combined with chemo drugs, could be an effective strategy for ovarian cancer therapeutics.
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5
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Panahi Y, Mohammadzadeh AH, Behnam B, Orafai HM, Jamialahmadi T, Sahebkar A. A Review of Monoclonal Antibody-Based Treatments in Non-small Cell Lung Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1286:49-64. [PMID: 33725344 DOI: 10.1007/978-3-030-55035-6_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Non-small cell lung cancer (NSCLC) is one of the most common types of lung cancer worldwide. It metastasizes rapidly and has a poor prognosis. The first-line treatment for most patients is a combination of chemotherapy and radiation. In many subjects, using targeted treatments alongside chemoradiation has shown a better outcome in terms of progression and quality of life for patients. These targeted treatments include small biological inhibiting molecules and monoclonal antibodies. In this review, we have assessed studies focused upon the treatment of non-small cell lung cancer. Some therapies are approved, such as bevacizumab and atezolizumab, while some are still in clinical trials, such as ficlatuzumab and ipilimumab, and others have been rejected due to inadequate disease control, such as figitumumab.
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Affiliation(s)
- Yunes Panahi
- Pharmacotherapy Department, Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mohammadzadeh
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Behzad Behnam
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.,Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Faculty of Pharmacy, Department of Pharmaceutical Biotechnology, Kerman University of Medical Sciences, Kerman, Iran
| | - Hossein M Orafai
- Faculty of Pharmacy, Department of Pharmaceutics, University of Ahl Al Bayt, Karbala, Iraq.,Faculty of Pharmacy, Department of Pharmaceutics, Al-Zahraa University, Karbala, Iraq
| | - Tannaz Jamialahmadi
- Department of Food Science and Technology, Quchan Branch, Islamic Azad University, Quchan, Iran.,Faculty of Medicine, Department of Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran. .,Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland.
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6
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Huang L, Xie K, Li H, Wang R, Xu X, Chen K, Gu H, Fang J. Suppression of c-Met-Overexpressing Tumors by a Novel c-Met/CD3 Bispecific Antibody. Drug Des Devel Ther 2020; 14:3201-3214. [PMID: 32982167 PMCID: PMC7495354 DOI: 10.2147/dddt.s254117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/17/2020] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Overexpression of c-Met, or hepatocyte growth factor (HGF) receptor, is commonly observed in tumor biopsies and often associated with poor patient survival, which makes HGF/c-Met pathway an attractive molecular target for cancer therapy. A number of antibody-based therapeutic strategies have been explored to block c-Met or HGF in cancers; however, clinical efficacy has been very limited, indicating that blockade of c-Met signal alone is not sufficient. Thus, an alternative approach is to develop an immunotherapy strategy for c-Met-overexpressing cancers. c-Met/CD3 bispecific antibody (BsAb) could bridge CD3-positive T lymphocytes and tumor cells to result in potent tumor cell killing. MATERIALS AND METHODS A bispecific antibody, BS001, which binds both c-Met and CD3, was generated using a novel BsAb platform. Western blotting and T cells-mediated killing assays were utilized to evaluate the BsAb's effects on cell proliferation, survival and signal transduction in tumor cells. Subcutaneous tumor mouse models were used to analyze the in vivo anti-tumor effects of the bispecific antibody and its combination therapy with PD-L1 antibody. RESULTS BS001 showed potent T-cell mediated tumor cells killing in vitro. Furthermore, BS001 inhibited phosphorylation of c-Met and downstream signal transduction in tumor cells. In A549 lung cancer xenograft model, BS001 inhibited tumor growth and increased the proportion of activated CD56+ tumor infiltrating lymphocytes. In vivo combination therapy of BS001 with Atezolizumab (an anti-programmed cell death protein1-ligand (PD-L1) antibody) showed more potent tumor inhibition than monotherapies. Similarly, in SKOV3 xenograft model, BS001 showed a significant efficacy in tumor growth inhibition and tumor recurrence was not observed in more than half of mice treated with a combination of BS001 and Pembrolizumab. CONCLUSION c-Met/CD3 bispecific antibody BS001 exhibited potent anti-tumor activities in vitro and in vivo, which was achieved through two distinguished mechanisms: through antibody-mediated tumor cell killing by T cells and through inhibition of c-Met signal transduction.
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Affiliation(s)
- Lei Huang
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Kun Xie
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Hongwen Li
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Ruiqin Wang
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Xiaoqing Xu
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Kaiming Chen
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Hua Gu
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
| | - Jianmin Fang
- Laboratory of Molecular Medicine, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, People’s Republic of China
- Department of Neurology, Tongji Hospital, Tongji University, Shanghai, People’s Republic of China
- Biomedical Research Center, Tongji University Suzhou Institute, Suzhou, Jiangsu, People’s Republic of China
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7
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Liang H, Wang M. MET Oncogene in Non-Small Cell Lung Cancer: Mechanism of MET Dysregulation and Agents Targeting the HGF/c-Met Axis. Onco Targets Ther 2020; 13:2491-2510. [PMID: 32273721 PMCID: PMC7104217 DOI: 10.2147/ott.s231257] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/16/2020] [Indexed: 12/24/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide and has a poor prognosis. Current treatments for advanced NSCLC included traditional chemotherapy, radiotherapy, targeted therapy, and immunotherapy. The efficacy of targeted therapy relies on oncogene addiction. Mesenchymal-epithelial transition factor (MET) gene can encode unconventional receptor tyrosine kinases with pleiotropic functions, when signals are abnormally activated, it can initiate and maintain tumor transformation, promote cell proliferation, survival, tumor invasion and angiogenesis. Thus, it is a promising therapeutic target. Previous studies have shown that elevated levels of HGF and/or overexpression of c-Met are associated with poor prognosis in lung cancer. In preclinical and clinical trials, c-MET inhibitors have shown some antitumor activity in NSCLC. Although the efficacy results of MET inhibitors in Phase III clinical trials are disappointing, given the molecular heterogeneity of NSCLC, only subgroups of patients with MET gene alterations may benefit from c-MET inhibitors. The challenge for the future is to screen out the potential beneficiaries. To solve this problem, there is need for large data analysis for the detection methods and treatment effects, to establish standards that meet the MET activation status, and determine reliable thresholds to achieve effective patient stratification and clinical decision making. This article summarized the structure of the hepatocyte growth factor (HGF)/c-Met axis, the different mechanisms of MET addiction, as well as MET amplification as acquired resistance mechanism to epidermal growth factor receptor-tyrosine kinase inhibitors, the latest advances of MET inhibitors, and immuotherapy in the treatment of NSCLC with MET alterations.
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Affiliation(s)
- Hongge Liang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100730, People’s Republic of China
| | - Mengzhao Wang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing100730, People’s Republic of China
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8
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MET targeting: time for a rematch. Oncogene 2020; 39:2845-2862. [PMID: 32034310 DOI: 10.1038/s41388-020-1193-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/16/2020] [Accepted: 01/24/2020] [Indexed: 12/21/2022]
Abstract
MET, the receptor tyrosine kinase (RTK) for hepatocyte growth factor, is a proto-oncogene involved in embryonic development and throughout life in homeostasis and tissue regeneration. Deregulation of MET signaling has been reported in numerous malignancies, prompting great interest in MET targeting for cancer therapy. The present review offers a summary of the biology of MET and its known functions in normal physiology and carcinogenesis, followed by an overview of the most relevant MET-targeting strategies and corresponding clinical trials, highlighting both past setbacks and promising future prospects. By placing their efforts on a more precise stratification strategy through the genetic analysis of tumors, modern trials such as the NCI-MATCH trial could revive the past enthusiasm for MET-targeted therapy.
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9
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Cuesta-Mateos C, Alcaraz-Serna A, Somovilla-Crespo B, Muñoz-Calleja C. Monoclonal Antibody Therapies for Hematological Malignancies: Not Just Lineage-Specific Targets. Front Immunol 2018; 8:1936. [PMID: 29387053 PMCID: PMC5776327 DOI: 10.3389/fimmu.2017.01936] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 12/15/2017] [Indexed: 12/12/2022] Open
Abstract
Today, monoclonal antibodies (mAbs) are a widespread and necessary tool for biomedical science. In the hematological cancer field, since rituximab became the first mAb approved by the Food and Drug Administration for the treatment of B-cell malignancies, a number of effective mAbs targeting lineage-specific antigens (LSAs) have been successfully developed. Non-LSAs (NLSAs) are molecules that are not restricted to specific leukocyte subsets or tissues but play relevant pathogenic roles in blood cancers including the development, proliferation, survival, and refractoriness to therapy of tumor cells. In consequence, efforts to target NLSAs have resulted in a plethora of mAbs-marketed or in development-to achieve different goals like neutralizing oncogenic pathways, blocking tumor-related chemotactic pathways, mobilizing malignant cells from tumor microenvironment to peripheral blood, modulating immune-checkpoints, or delivering cytotoxic drugs into tumor cells. Here, we extensively review several novel mAbs directed against NLSAs undergoing clinical evaluation for treating hematological malignancies. The review focuses on the structure of these antibodies, proposed mechanisms of action, efficacy and safety profile in clinical studies, and their potential applications in the treatment of hematological malignancies.
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Affiliation(s)
- Carlos Cuesta-Mateos
- Servicio de Inmunología, Instituto de Investigación Sanitaria Hospital Universitario de La Princesa, Madrid, Spain
- IMMED S.L., Immunological and Medicinal Products, Madrid, Spain
| | - Ana Alcaraz-Serna
- Servicio de Inmunología, Instituto de Investigación Sanitaria Hospital Universitario de La Princesa, Madrid, Spain
| | - Beatriz Somovilla-Crespo
- Department of Immunology and Oncology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Cecilia Muñoz-Calleja
- Servicio de Inmunología, Instituto de Investigación Sanitaria Hospital Universitario de La Princesa, Madrid, Spain
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10
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Corraliza-Gorjón I, Somovilla-Crespo B, Santamaria S, Garcia-Sanz JA, Kremer L. New Strategies Using Antibody Combinations to Increase Cancer Treatment Effectiveness. Front Immunol 2017; 8:1804. [PMID: 29312320 PMCID: PMC5742572 DOI: 10.3389/fimmu.2017.01804] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 11/30/2017] [Indexed: 12/14/2022] Open
Abstract
Antibodies have proven their high value in antitumor therapy over the last two decades. They are currently being used as the first-choice to treat some of the most frequent metastatic cancers, like HER2+ breast cancers or colorectal cancers, currently treated with trastuzumab (Herceptin) and bevacizumab (Avastin), respectively. The impressive therapeutic success of antibodies inhibiting immune checkpoints has extended the use of therapeutic antibodies to previously unanticipated tumor types. These anti-immune checkpoint antibodies allowed the cure of patients devoid of other therapeutic options, through the recovery of the patient’s own immune response against the tumor. In this review, we describe how the antibody-based therapies will evolve, including the use of antibodies in combinations, their main characteristics, advantages, and how they could contribute to significantly increase the chances of success in cancer therapy. Indeed, novel combinations will consist of mixtures of antibodies against either different epitopes of the same molecule or different targets on the same tumor cell; bispecific or multispecific antibodies able of simultaneously binding tumor cells, immune cells or extracellular molecules; immunomodulatory antibodies; antibody-based molecules, including fusion proteins between a ligand or a receptor domain and the IgG Fab or Fc fragments; autologous or heterologous cells; and different formats of vaccines. Through complementary mechanisms of action, these combinations could contribute to elude the current limitations of a single antibody which recognizes only one particular epitope. These combinations may allow the simultaneous attack of the cancer cells by using the help of the own immune cells and exerting wider therapeutic effects, based on a more specific, fast, and robust response, trying to mimic the action of the immune system.
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Affiliation(s)
- Isabel Corraliza-Gorjón
- Department of Immunology and Oncology, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain
| | - Beatriz Somovilla-Crespo
- Department of Immunology and Oncology, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain
| | - Silvia Santamaria
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biologicas (CIB-CSIC), Madrid, Spain
| | - Jose A Garcia-Sanz
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biologicas (CIB-CSIC), Madrid, Spain
| | - Leonor Kremer
- Department of Immunology and Oncology, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain
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11
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A Review of Anti-Angiogenic Targets for Monoclonal Antibody Cancer Therapy. Int J Mol Sci 2017; 18:ijms18081786. [PMID: 28817103 PMCID: PMC5578174 DOI: 10.3390/ijms18081786] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/11/2017] [Accepted: 08/14/2017] [Indexed: 12/13/2022] Open
Abstract
Tumor angiogenesis is a key event that governs tumor progression and metastasis. It is controlled by the complicated and coordinated actions of pro-angiogenic factors and their receptors that become upregulated during tumorigenesis. Over the past several decades, vascular endothelial growth factor (VEGF) signaling has been identified as a central axis in tumor angiogenesis. The remarkable advent of recombinant antibody technology has led to the development of bevacizumab, a humanized antibody that targets VEGF and is a leading clinical therapy to suppress tumor angiogenesis. However, despite the clinical efficacy of bevacizumab, its significant side effects and drug resistance have raised concerns necessitating the identification of novel drug targets and development of novel therapeutics to combat tumor angiogenesis. This review will highlight the role and relevance of VEGF and other potential therapeutic targets and their receptors in angiogenesis. Simultaneously, we will also cover the current status of monoclonal antibodies being developed to target these candidates for cancer therapy.
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12
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Rothenberger NJ, Stabile LP. Hepatocyte Growth Factor/c-Met Signaling in Head and Neck Cancer and Implications for Treatment. Cancers (Basel) 2017; 9:cancers9040039. [PMID: 28441771 PMCID: PMC5406714 DOI: 10.3390/cancers9040039] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/14/2017] [Accepted: 04/20/2017] [Indexed: 12/11/2022] Open
Abstract
Aberrant signaling of the hepatocyte growth factor (HGF)/c-Met pathway has been identified as a promoter of tumorigenesis in several tumor types including head and neck squamous cell carcinoma (HNSCC). Despite a relatively low c-Met mutation frequency, overexpression of HGF and its receptor c-Met has been observed in more than 80% of HNSCC tumors, with preclinical and clinical studies linking overexpression with cellular proliferation, invasion, migration, and poor prognosis. c-Met is activated by HGF through a paracrine mechanism to promote cellular morphogenesis enabling cells to acquire mesenchymal phenotypes in part through the epithelial-mesenchymal transition, contributing to metastasis. The HGF/c-Met pathway may also act as a resistance mechanism against epidermal growth factor receptor (EGFR) inhibition in advanced HNSCC. Furthermore, with the identification of a biologically distinct subset of HNSCC tumors acquired from human papillomavirus (HPV) infection that generally portends a good prognosis, high expression of HGF or c-Met in HPV-negative tumors has been associated with worse prognosis. Dysregulated HGF/c-Met signaling results in an aggressive HNSCC phenotype which has led to clinical investigations for targeted inhibition of this pathway. In this review, HGF/c-Met signaling, pathway alterations, associations with clinical outcomes, and preclinical and clinical therapeutic strategies for targeting HGF/c-Met signaling in HNSCC are discussed.
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Affiliation(s)
- Natalie J Rothenberger
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| | - Laura P Stabile
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA.
- University of Pittsburgh Cancer Center, Pittsburgh, PA 15213, USA.
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13
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Progress of antibody-based inhibitors of the HGF-cMET axis in cancer therapy. Exp Mol Med 2017; 49:e307. [PMID: 28336955 PMCID: PMC5382561 DOI: 10.1038/emm.2017.17] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 12/22/2016] [Indexed: 12/27/2022] Open
Abstract
Dysregulated receptor tyrosine kinase signaling in human cancer cells leads to tumor progression, invasion and metastasis. The receptor tyrosine kinase cMET is frequently overexpressed in cancer tissue, and activation of cMET signaling is related to drug resistance and the processes of carcinogenesis, invasion and metastasis. For that reason, cMET and its ligand, hepatocyte growth factor (HGF), are considered prime targets for the development of anticancer drugs. At least eight anti-cMET and four anti-HGF antibodies have been tested or are being tested in clinical trials. However, to date none of these HGF/cMET inhibitors have shown significant efficacy in clinical trials. Furthermore, no receptor tyrosine kinase inhibitors primarily targeting cMET have been approved. Given that neutralization of HGF or cMET does not cause significant adverse effects, inhibition of the HGF/cMET signaling pathway appears to be safe. In this review, we summarized the completed and ongoing clinical trials testing antibody- or protein-based anticancer drugs targeting cMET and HGF.
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14
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Silva APS, Coelho PV, Anazetti M, Simioni PU. Targeted therapies for the treatment of non-small-cell lung cancer: Monoclonal antibodies and biological inhibitors. Hum Vaccin Immunother 2016; 13:843-853. [PMID: 27831000 PMCID: PMC5404364 DOI: 10.1080/21645515.2016.1249551] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The usual treatments for patients with non-small-cell lung cancer (NSCLC), such as advanced lung adenocarcinoma, are unspecific and aggressive, and include lung resection, radiotherapy and chemotherapy. Recently, treatment with monoclonal antibodies and biological inhibitors has emerged as an effective alternative, generating effective results with few side effects. In recent years, several clinical trials using monoclonal antibodies presented potential benefits to NSCLC, and 4 of them are already approved for the treatment of NSCLC, such as cetuximab, bevacizumab, nivolumab and pembrolizumab. Also, biological inhibitors are attractive tolls for biological applications. Among the approved inhibitors are crizotinib, erlotinib, afatinib and gefitinib, and side effects are usually mild to intense. Nevertheless, biological molecule treatments are under development, and several new monoclonal antibodies and biological inhibitors are in trial to treat NSCLC. Also under trial study are as follows: anti-epidermal growth factor receptor (EGFR) antibodies (nimotuzumab and ficlatuzumab), anti-IGF 1 receptor (IGF-1R) monoclonal antibody (figitumumab), anti-NR-LU-10 monoclonal antibody (nofetumomab) as well as antibodies directly affecting the cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) molecule (ipilimumab and tremelimumab), to receptor activator of nuclear factor-kappa B ligand (RANKL) (denosumab) or to polymerase enzyme (veliparib and olaparib). Among new inhibitors under investigation are poly-ADP ribose polymerase (PARP) inhibitors (veliparib and olaparib) and phosphatidylinositol 3-kinase (PI3K) inhibitor (buparlisib). However, the success of immunotherapies still requires extensive research and additional controlled trials to evaluate the long-term benefits and side effects.
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Affiliation(s)
- Ana P S Silva
- a Department of Biomedical Science , Faculty of Americana , Americana , SP , Brazil
| | - Priscila V Coelho
- a Department of Biomedical Science , Faculty of Americana , Americana , SP , Brazil
| | - Maristella Anazetti
- a Department of Biomedical Science , Faculty of Americana , Americana , SP , Brazil.,b Department of Health Science , Faculty DeVry Metrocamp , Campinas , SP , Brazil
| | - Patricia U Simioni
- a Department of Biomedical Science , Faculty of Americana , Americana , SP , Brazil.,c Department of Genetics , Evolution and Bioagents, Institute of Biology, University of Campinas (UNICAMP) , Campinas , SP , Brazil.,d Department of Biochemistry and Microbiology , Institute of Biosciences, Universidade Estadual Paulista, UNESP , Rio Claro , SP , Brazil
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15
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Kumar D, Kandl C, Hamilton CD, Shnayder Y, Tsue TT, Kakarala K, Ledgerwood L, Sun XS, Huang HJ, Girod D, Thomas SM. Mitigation of Tumor-Associated Fibroblast-Facilitated Head and Neck Cancer Progression With Anti-Hepatocyte Growth Factor Antibody Ficlatuzumab. JAMA Otolaryngol Head Neck Surg 2016; 141:1133-9. [PMID: 26540318 DOI: 10.1001/jamaoto.2015.2381] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
IMPORTANCE Ficlatuzumab can be used to treat head and neck squamous cell carcinoma (HNSCC) by inhibiting c-Met receptor-mediated cell proliferation, migration, and invasion. OBJECTIVE To understand the effect of ficlatuzumab on HNSCC proliferation, migration, and invasion. DESIGN, SETTING, AND PARTICIPANTS The effects of ficlatuzumab on HNSCC proliferation, invasion, and migration were tested. Mitigation of c-Met and downstream signaling was assessed by immunoblotting. The tumor microenvironment has emerged as an important factor in HNSCC tumor progression. The most abundant stromal cells in HNSCC tumor microenvironment are tumor-associated fibroblasts (TAFs). We previously reported that TAFs facilitate HNSCC growth and metastasis. Furthermore, activation of the c-Met tyrosine kinase receptor by TAF-secreted hepatocyte growth factor (HGF) facilitates tumor invasion. Ficlatuzumab is a humanized monoclonal antibody that sequesters HGF, preventing it from binding to and activating c-Met. We hypothesized that targeting the c-Met pathway with ficlatuzumab will mitigate TAF-mediated HNSCC proliferation, migration, and invasion. Representative HNSCC cell lines HN5, UM-SCC-1, and OSC-19 were used in these studies. EXPOSURES FOR OBSERVATIONAL STUDIES The HNSCC cell lines were treated with ficlatuzumab, 0 to 100 µg/mL, for 24 to 72 hours. MAIN OUTCOMES AND MEASURES Ficlatuzumab inhibited HNSCC progression through c-Met and mitogen-activated protein kinase (MAPK) signaling pathway. RESULTS Ficlatuzumab significantly reduced TAF-facilitated HNSCC cell proliferation (HN5, P < .001; UM-SCC-1, P < .001), migration (HN5, P = .002; UM-SCC-1, P = .01; and OSC-19, P = .04), and invasion (HN5, P = .047; UM-SCC-1, P = .03; and OSC-19, P = .04) through a 3-dimensional peptide-based hydrogel (PGmatrix). In addition, ficlatuzumab also inhibited the phosphorylation of c-Met at Tyr1234/1235 and p44/42 MAPK in HNSCC cells exposed to recombinant HGF. CONCLUSIONS AND RELEVANCE We demonstrate that neutralizing TAF-derived HGF with ficlatuzumab effectively mitigates c-Met signaling and decreases HNSCC proliferation, migration, and invasion. Thus, ficlatuzumab effectively mitigates stromal influences on HNSCC progression.
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Affiliation(s)
- Dhruv Kumar
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | - Christopher Kandl
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | | | - Yelizaveta Shnayder
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | - Terance Ted Tsue
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | - Kiran Kakarala
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | - Levi Ledgerwood
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | - Xiuzhi Susan Sun
- Departments of Grain Science and Industry, and Biological and Agricultural Engineering, Kansas State University, Kansas City
| | | | - Douglas Girod
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City
| | - Sufi Mary Thomas
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City4Department of Cancer Biology, University of Kansas Medical Center, Kansas City5Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City6Universi
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16
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Abdel-Magid AF. Inhibitors of the Epidermal Growth Factor Receptor (EGFR) May Provide Effective Treatment for Lung Adenocarcinoma. ACS Med Chem Lett 2015; 6:732-3. [PMID: 26191356 DOI: 10.1021/acsmedchemlett.5b00231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Indexed: 11/28/2022] Open
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17
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Jiang T, Zhou C. [Research Progress of HGF/c-MET Inhibitor in the Treatment of Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2015; 18:240-4. [PMID: 25936889 PMCID: PMC6000280 DOI: 10.3779/j.issn.1009-3419.2015.04.09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
分子靶向治疗在晚期非小细胞肺癌(non-small cell lung cancer, NSCLC)患者的治疗中起着越来越重要的作用。肝细胞生长因子/c-MET(hepatocyte growth factor/c-MET, HGF/c-MET)信号通路在NSCLC的发生、发展及NSCLC患者对表皮生长因子受体抑制剂(epidermal growth factor receptor tyrosine kinase inhibitor, EGFR-TKI)的耐药方面都起着重要的作用,其已经成为NSCLC分子靶向治疗的又一热点。c-MET扩增或过表达被认为可能是继EGFR和间变淋巴瘤激酶(anaplastic lymphoma kinase, ALK)融合基因之后,NSCLC又一特征性的基因突变。HGF/c-MET抑制剂也在临床前的研究中取得良好的抗肿瘤效果。近期公布的一些Ⅱ期/Ⅲ期临床研究的数据显示,HGF/c-MET抑制剂可以使部分c-MET扩增或过表达的NSCLC患者生存获益。因此,本文就HGF/c-MET抑制剂治疗NSCLC的研究进展做一综述。
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Affiliation(s)
- Tao Jiang
- Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - Caicun Zhou
- Shanghai Pulmonary Hospital, Shanghai 200433, China
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18
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Finocchiaro G, Toschi L, Gianoncelli L, Baretti M, Santoro A. Prognostic and predictive value of MET deregulation in non-small cell lung cancer. ANNALS OF TRANSLATIONAL MEDICINE 2015; 3:83. [PMID: 25992382 PMCID: PMC4416957 DOI: 10.3978/j.issn.2305-5839.2015.03.43] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 02/11/2015] [Indexed: 12/11/2022]
Abstract
Recent progress in cancer biology has led to the discovery of increasing number of oncogene alterations that have dramatically changed the paradigm of lung cancer treatment. MET is a tyrosine kinase receptor for the hepatocyte growth factor (HGF) that is deregulated in several malignancies, including non-small cell lung cancer (NSCLC). Abnormal MET-HGF signaling pathway activation can occur via different mechanisms, including HGF and/or MET overexpression, MET gene amplification, mutations or rearrangements. MET protein overexpression and increased MET gene number have been identified as poor prognostic factors in several series of surgically resected NSCLC making this receptor an attractive target for cancer treatment. Several clinical trials have recently evaluated the activity of a variety of anti-MET strategies in NSCLC patients with or without molecular selection with a variable degree of success, underscoring the need of establishing the best predictive biomarker for the identification of responding patients.
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Affiliation(s)
- Giovanna Finocchiaro
- Department of Medical Oncology, Department of Medical Oncology, Istituto Clinico Humanitas IRCCS, Rozzano, Milan, Italy
| | - Luca Toschi
- Department of Medical Oncology, Department of Medical Oncology, Istituto Clinico Humanitas IRCCS, Rozzano, Milan, Italy
| | - Letizia Gianoncelli
- Department of Medical Oncology, Department of Medical Oncology, Istituto Clinico Humanitas IRCCS, Rozzano, Milan, Italy
| | - Marina Baretti
- Department of Medical Oncology, Department of Medical Oncology, Istituto Clinico Humanitas IRCCS, Rozzano, Milan, Italy
| | - Armando Santoro
- Department of Medical Oncology, Department of Medical Oncology, Istituto Clinico Humanitas IRCCS, Rozzano, Milan, Italy
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19
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Lee D, Sung ES, Ahn JH, An S, Huh J, You WK. Development of antibody-based c-Met inhibitors for targeted cancer therapy. Immunotargets Ther 2015; 4:35-44. [PMID: 27471710 PMCID: PMC4918247 DOI: 10.2147/itt.s37409] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Signaling pathways mediated by receptor tyrosine kinases (RTKs) and their ligands play important roles in the development and progression of human cancers, which makes RTK-mediated signaling pathways promising therapeutic targets in the treatment of cancer. Compared with small-molecule compounds, antibody-based therapeutics can more specifically recognize and bind to ligands and RTKs. Several antibody inhibitors of RTK-mediated signaling pathways, such as human epidermal growth factor receptor 2, vascular endothelial growth factor, epidermal growth factor receptor or vascular endothelial growth factor receptor 2, have been developed and are widely used to treat cancer patients. However, since the therapeutic options are still limited in terms of therapeutic efficacy and types of cancers that can be treated, efforts are being made to identify and evaluate novel RTK-mediated signaling pathways as targets for more efficacious cancer treatment. The hepatocyte growth factor/c-Met signaling pathway has come into the spotlight as a promising target for development of potent cancer therapeutic agents. Multiple antibody-based therapeutics targeting hepatocyte growth factor or c-Met are currently in preclinical or clinical development. This review focuses on the development of inhibitors of the hepatocyte growth factor/c-Met signaling pathway for cancer treatment, including critical issues in clinical development and future perspectives for antibody-based therapeutics.
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Affiliation(s)
- Dongheon Lee
- Hanwha Chemical R&D Center, Biologics Business Unit, Daejeon, Republic of Korea
| | - Eun-Sil Sung
- Hanwha Chemical R&D Center, Biologics Business Unit, Daejeon, Republic of Korea
| | - Jin-Hyung Ahn
- Hanwha Chemical R&D Center, Biologics Business Unit, Daejeon, Republic of Korea
| | - Sungwon An
- Hanwha Chemical R&D Center, Biologics Business Unit, Daejeon, Republic of Korea
| | - Jiwon Huh
- Hanwha Chemical R&D Center, Biologics Business Unit, Daejeon, Republic of Korea
| | - Weon-Kyoo You
- Hanwha Chemical R&D Center, Biologics Business Unit, Daejeon, Republic of Korea
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20
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Morgensztern D, Campo MJ, Dahlberg SE, Doebele RC, Garon E, Gerber DE, Goldberg SB, Hammerman PS, Heist R, Hensing T, Horn L, Ramalingam SS, Rudin CM, Salgia R, Sequist L, Shaw AT, Simon GR, Somaiah N, Spigel DR, Wrangle J, Johnson D, Herbst RS, Bunn P, Govindan R. Molecularly targeted therapies in non-small-cell lung cancer annual update 2014. J Thorac Oncol 2015; 10:S1-63. [PMID: 25535693 PMCID: PMC4346098 DOI: 10.1097/jto.0000000000000405] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
There have been significant advances in the understanding of the biology and treatment of non-small-cell lung cancer (NSCLC) during the past few years. A number of molecularly targeted agents are in the clinic or in development for patients with advanced NSCLC. We are beginning to understand the mechanisms of acquired resistance after exposure to tyrosine kinase inhibitors in patients with oncogene addicted NSCLC. The advent of next-generation sequencing has enabled to study comprehensively genomic alterations in lung cancer. Finally, early results from immune checkpoint inhibitors are very encouraging. This review summarizes recent advances in the area of cancer genomics, targeted therapies, and immunotherapy.
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Affiliation(s)
- Daniel Morgensztern
- Department of Medical Oncology, Washington University School of Medicine, Saint Louis, MO
| | - Meghan J. Campo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston MA
| | - Suzanne E. Dahlberg
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston MA
| | - Robert C. Doebele
- Department of Medical Oncology, University of Colorado School of Medicine and University of Colorado Cancer Center, Aurora, CO
| | - Edward Garon
- UCLA Santa Monica Hematology Oncology, Santa Monica, CA
| | - David E. Gerber
- Division of Hematology-Oncology, Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX
| | - Sarah B. Goldberg
- Department of Medical Oncology, Yale School of Medicine and Cancer Center, New Haven, CT
| | | | - Rebecca Heist
- Department of Oncology, Massachusetts General Hospital, Boston, MA
| | - Thomas Hensing
- Department of Oncology, The University of Chicago Medicine, Chicago, IL
| | - Leora Horn
- Division of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, TN
| | - Suresh S. Ramalingam
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
| | | | - Ravi Salgia
- Department of Oncology, The University of Chicago Medicine, Chicago, IL
| | - Lecia Sequist
- Department of Oncology, Massachusetts General Hospital, Boston, MA
| | - Alice T. Shaw
- Department of Oncology, Massachusetts General Hospital, Boston, MA
| | - George R. Simon
- Division of Hematology-Oncology, Medical University of South Carolina, Charleston, SC
| | - Neeta Somaiah
- Division of Hematology-Oncology, Medical University of South Carolina, Charleston, SC
| | | | - John Wrangle
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - David Johnson
- Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas
| | - Roy S. Herbst
- Department of Medical Oncology, Yale School of Medicine and Cancer Center, New Haven, CT
| | - Paul Bunn
- Division of Medical Oncology, University of Colorado Denver School of Medicine, Denver, CO
| | - Ramaswamy Govindan
- Department of Medical Oncology, Washington University School of Medicine, Saint Louis, MO
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21
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Lin Y, Wang X, Jin H. EGFR-TKI resistance in NSCLC patients: mechanisms and strategies. Am J Cancer Res 2014; 4:411-435. [PMID: 25232485 PMCID: PMC4163608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 08/16/2014] [Indexed: 06/03/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) is a kind of receptor tyrosine kinase (RTK) that plays a critical role in the initiation and development of malignant tumors via modulating downstream signaling pathways. In non-small cell lung cancer (NSCLC), the activating mutations located in the tyrosine kinase domains of EGFR have been demonstrated in multiple researches as the "Achilles' heel" of this deadly disease since they could be well-targeted by epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs). However, it's still too early to celebrate since the first-generation EGFR-TKIs such as gefitinib and erlotinib have only achieved limited clinical benefits and acquired resistance to this kind of drugs occurred inevitably in almost all the NSCLC patients. In order to make the most of EGFR-TKIs and develop more effective regimens for the NSCLC patients, researchers majoring in different aspects start a battle against EGFR-TKI resistance. Challenging as it is, we still progress stably and step firmly toward the final victory. This review will summarize the major mechanisms of acquired resistance to EGFR-TKIs, and then discuss the development of rationally designed molecular target drugs in accordance with each mechanism, in the hope of shedding light on the great achievements we have obtained and tough obstacles we have to overcome in the battle against this deadly disease.
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Affiliation(s)
- Yuxin Lin
- Department of Medical Oncology, Sir Runrun Shaw Hospital, Medical School of Zhejiang University Hangzhou, China
| | - Xian Wang
- Department of Medical Oncology, Sir Runrun Shaw Hospital, Medical School of Zhejiang University Hangzhou, China
| | - Hongchuan Jin
- Department of Medical Oncology, Sir Runrun Shaw Hospital, Medical School of Zhejiang University Hangzhou, China
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22
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Vigna E, Comoglio PM. Targeting the oncogenic Met receptor by antibodies and gene therapy. Oncogene 2014; 34:1883-9. [PMID: 24882574 DOI: 10.1038/onc.2014.142] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/22/2014] [Accepted: 04/22/2014] [Indexed: 12/31/2022]
Abstract
The receptor for hepatocyte growth factor (HGF), a tyrosine kinase encoded by the Met oncogene, has a crucial role in cancer growth, invasion and metastasis. It is a validated therapeutic target for 'personalized' treatment of a number of malignancies. Therapeutic tools prompting selective, robust and highly effective Met inhibition potentially represent a major step in the battle against cancer. Antibodies targeting either Met or its ligand HGF, although challenging, demonstrate to be endowed with promising features. Here we briefly review and discuss the state of the art in the field.
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Affiliation(s)
- E Vigna
- University of Torino, Department of Oncology, and Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy
| | - P M Comoglio
- University of Torino, Department of Oncology, and Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy
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