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Ramani NS, Morani AC, Zhang S. MET Gene High Copy Number (Amplification/Polysomy) Identified in Melanoma for Potential Targeted Therapy. Am J Clin Pathol 2022; 157:502-505. [PMID: 34617988 DOI: 10.1093/ajcp/aqab171] [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: 05/19/2021] [Accepted: 09/01/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Aberrant expression of the mesenchymal epithelial transition factor (MET) gene has been observed in several malignancies, and drugs targeting the MET gene have been implicated in clinical trials with promising results. Hence, MET is a potentially targetable oncogenic driver. We explored the frequency of MET gene high copy number in melanomas and carcinomas. METHODS The study group included 135 patients. Tissue microarrays were constructed with 19 melanomas and 116 carcinomas diagnosed from 2010 to 2012. We screened MET gene copy number by fluorescence in situ hybridization analysis using probes for MET gene and CEP7 as control. RESULTS We found MET gene amplification in 2 (11%) of 19 melanoma cases, whereas 5 (26%) of 19 melanoma cases showed polysomy. For carcinomas, there was no MET gene amplification identified. However, 8 (7%) of 116 cases showed polysomy. CONCLUSIONS In our study, MET gene amplification was identified in 11% of melanomas and is relatively concordant with few reported studies. However, about 26% of the additional melanoma cases showed MET gene polysomy, which has not been reported as per our knowledge. If these results are validated with further orthogonal studies, more of the melanoma cases could potentially benefit from targeted therapy with MET tyrosine kinase inhibitors.
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Affiliation(s)
- Nisha S Ramani
- Department of Pathology, Upstate Medical University, Syracuse, NY, USA
| | | | - Shengle Zhang
- Department of Pathology, Upstate Medical University, Syracuse, NY, USA
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Bylicki O, Paleiron N, Assié JB, Chouaïd C. Targeting the MET-Signaling Pathway in Non-Small-Cell Lung Cancer: Evidence to Date. Onco Targets Ther 2020; 13:5691-5706. [PMID: 32606781 PMCID: PMC7306460 DOI: 10.2147/ott.s219959] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/30/2020] [Indexed: 12/19/2022] Open
Abstract
The c-MET proto-oncogene (MET) plays an important role in lung oncogenesis, affecting cancer-cell survival, growth and invasiveness. The MET receptor in non-small-cell lung cancer (NSCLC) is a potential therapeutic target. The development of high-output next-generation sequencing techniques has enabled better identification of anomalies in the MET pathway, like the MET exon-14 (METex14) mutation. Moreover, analyses of epidermal growth factor-receptor (EGFR) and mechanisms of resistance to tyrosine-kinase inhibitors (TKIs) demonstrated the importance of MET amplification as an escape mechanism in patients with TKI-treated EGFR-mutated NSCLCs. This review summarizes the laboratory findings on MET and its anomalies, trial results on METex14 alterations and MET amplification in non-EGFR mutated NSCLCs, and acquired resistance to TKI in EGFR-mutated NSCLCs. The outcomes of the first trials with anti-MET agents on non-selected NSCLC patients or those selected for MET overexpression were disappointing. Two situations seem the most promising today for the use of anti-MET agents to treat these patients: tumors harboring METex14 and those EGFR-sensitive mutation mutated under TKI-EGFR with a MET-amplification mechanism of resistance or EGFR-resistance mutation.
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Affiliation(s)
- Olivier Bylicki
- Respiratory Disease Unit, HIA Sainte Anne, Toulon, France
- University Paris–Est Créteil (UPEC), CEpiA (Clinical Epidemiology and Ageing), EA 7376- IMRB, UPEC, Créteil, France
| | | | - Jean-Baptiste Assié
- University Paris–Est Créteil (UPEC), CEpiA (Clinical Epidemiology and Ageing), EA 7376- IMRB, UPEC, Créteil, France
- Pneumology Department, Centre Hospitalier Intercommunal De Créteil, Créteil, France
- Cordeliers Research Center, Inserm, Functional Genomics of Solid Tumors Laboratory, Sorbonne University, University of Paris, Paris, France
| | - Christos Chouaïd
- University Paris–Est Créteil (UPEC), CEpiA (Clinical Epidemiology and Ageing), EA 7376- IMRB, UPEC, Créteil, France
- Pneumology Department, Centre Hospitalier Intercommunal De Créteil, Créteil, France
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3
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Tabibkhooei A, Izadpanahi M, Arab A, Zare-Mirzaei A, Minaeian S, Rostami A, Mohsenian A. Profiling of novel circulating microRNAs as a non-invasive biomarker in diagnosis and follow-up of high and low-grade gliomas. Clin Neurol Neurosurg 2019; 190:105652. [PMID: 31896490 DOI: 10.1016/j.clineuro.2019.105652] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Glioblastoma (GBM) is the most common primary malignant neoplasm of the central nervous system (CNS). Despite the progress in therapeutic strategies such as surgical techniques, radiotherapy, chemotherapy, and targeted therapy, prognosis and therapeutically convenient monitoring tools in patients with GBM has not improved significantly up to now.Therefore, exosomal miRNAs as novel non-invasive biomarkers having high sensitivity and specificity are required to improve diagnosis and to develop new targeted therapy strategies for GBM patients. The aim of the present study was to investigate a novel miRNA signature as a predictive biomarker for diagnosis and measurement of response to therapeutic interventions in plasma of GBM patients versus traumatic brain injury and diffuse low-grade astrocytoma (LGA) patients. PATIENTS AND METHODS Plasma exosomal-microRNAs were isolated from GBM (n = 25), LGA (n = 25), and head trauma patients (n = 15) as non-glioma control from March 2017 to June 2018 in Department of Neurosurgery at Rasoul-e-Akram Hospital. Through a bioinformatics analysis, we used Miranda, TargetScan, mirBase, DIANA-microT-CDS, and KEGG database as well as microarray data analysis from GEO for microRNA candidates. Finally, miR-210, miR-185, miR-5194, and miR-449 were selected among those miRNAs because they were recorded to target the maximum number of genes in EGFR and c-MET signaling pathways. Then, exosomal microRNAs were extracted from plasma of patients and quantitated by locked nucleic acid real-time PCR in GBM, LGA, and trauma patients. RESULTS This result is the first report on the role of circulating miR-185, miR-449, and miR-5194 in GBM compared to LGA and trauma. The plasma expression of miR-210 as an oncogenic miR was upregulated in GBM and LGA groups (P < 0.0001). Otherwise, miR-185, miR-5194, and miR-449 were significantly downregulated (P ≤ 0.05) in GBM and LGA compared to trauma patients. There was no significant downregulation in the expression of miR-185 between GBM and LGA, while the expression of miR-5194 (P ≤ 0.05) and miR-449 (P ≤ 0.05) was significantly decreased in GBM patients compared with LGA. CONCLUSIONS These results indicate that the levels of miR-210, miR-449, and miR-5194 are a promising diagnostic and prognostic biomarker positively correlated with histopathological grade and invasiveness of GBM. These findings imply that circulating microRNA can be potentially used as novel biomarkers for glioma that might be beneficial in clinical management of glioma patients.
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Affiliation(s)
- Alireza Tabibkhooei
- Department of Neurosurgery, Iran University of Medical Sciences, Tehran, Iran.
| | - Maryam Izadpanahi
- Department of Neurosurgery, Iran University of Medical Sciences, Tehran, Iran.
| | - Abolfazl Arab
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Ali Zare-Mirzaei
- Department of Pathology, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Minaeian
- Antimicrobial Resistance Research Center, Institute of Immunology and Infection Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Rostami
- Department of Neurosurgery, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Mohsenian
- Department of Neurosurgery, Iran University of Medical Sciences, Tehran, Iran
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Abstract
Papillary renal cell carcinoma (PRCC) is a subtype of renal cell carcinoma (RCC) accounting for approximately 15-20% of cases and further divided into Type 1 and Type 2. Type 1 PRCC tends to have more alterations in the MET tyrosine kinase receptor than Type 2 PRCC. Treatment for RCC patients is based on studies with minimal participation from patients with PRCC; consequently, conventional therapies tend to be less effective for RCC patients with a subtype other than ccRCC (non-ccRCC). Since MET is a known alteration in PRCC, it is potential target for directed therapy. There have been many attempts to develop MET inhibitors for use in solid tumors including PRCC. The following review will discuss the current research regarding MET-targeted therapy, MET inhibitors in clinical trials, and future directions for MET inhibitors in PRCC.
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Affiliation(s)
| | - Mehmet Asim Bilen
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA
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5
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Chen W, Zhang H, Zeng X, Chen L, Fang G, Cai H, Zhong X. Phase‐shifted pentafluorobutane nanoparticles for ultrasound imaging and ultrasound‐mediated hypoxia modulation. J Cell Biochem 2019; 120:16543-16552. [PMID: 31099025 DOI: 10.1002/jcb.28914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 03/18/2019] [Accepted: 04/05/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Wei‐Jian Chen
- Department of Ultrasonography The First Affiliated Hospital of Jinan University Guangzhou China
| | - Hua Zhang
- The First Affiliated Hospital, Biomedical Translation Research Institute and School of Pharmacy Jinan University Guangzhou China
| | - Xue‐Yi Zeng
- Department of Chemistry, College of Chemistry and Materials Science Jinan University Guangzhou China
| | - Long Chen
- Department of Ultrasonography, Xiangyang Central Hospital Affiliated Hospital of Hubei University of Arts and Science Xiangyang China
| | - Gui‐Ting Fang
- Department of Ultrasonography The First Affiliated Hospital of Jinan University Guangzhou China
| | - Huai‐Hong Cai
- Department of Chemistry, College of Chemistry and Materials Science Jinan University Guangzhou China
| | - Xing Zhong
- Department of Ultrasonography The First Affiliated Hospital of Jinan University Guangzhou China
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Abstract
OBJECTIVE The hallmarks of cancer are mechanisms that cells develop to undergo malignant transformation. The targeting of these hallmarks by newer cancer therapies results in new mechanisms of response, toxicity, and resistance. The purpose of this article is to review these hallmarks, their associated targeted therapies, imaging features of responses, and toxicities. CONCLUSION Ten hallmarks, among them proliferative signaling, angiogenesis, immune response, and genome instability, are reviewed. Molecular targeted therapies, including antiangiogenic factors and immune checkpoint inhibitors, target these hallmarks.
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Parikh PK, Ghate MD. Recent advances in the discovery of small molecule c-Met Kinase inhibitors. Eur J Med Chem 2018; 143:1103-1138. [DOI: 10.1016/j.ejmech.2017.08.044] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 08/03/2017] [Accepted: 08/21/2017] [Indexed: 12/17/2022]
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MET exon 14 skipping mutation in triple-negative pulmonary adenocarcinomas and pleomorphic carcinomas: An analysis of intratumoral MET status heterogeneity and clinicopathological characteristics. Lung Cancer 2017; 106:131-137. [DOI: 10.1016/j.lungcan.2017.02.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/13/2016] [Accepted: 02/10/2017] [Indexed: 11/15/2022]
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Novel Immunotherapeutic Approaches for Head and Neck Squamous Cell Carcinoma. Cancers (Basel) 2016; 8:cancers8100087. [PMID: 27669306 PMCID: PMC5082377 DOI: 10.3390/cancers8100087] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/16/2016] [Accepted: 09/08/2016] [Indexed: 12/11/2022] Open
Abstract
The immune system plays a key role in preventing tumor formation by recognizing and destroying malignant cells. For over a century, researchers have attempted to harness the immune response as a cancer treatment, although this approach has only recently achieved clinical success. Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide and is associated with cigarette smoking, alcohol consumption, betel nut use, and human papillomavirus infection. Unfortunately, worldwide mortality from HNSCC remains high, partially due to limits on therapy secondary to the significant morbidity associated with current treatments. Therefore, immunotherapeutic approaches to HNSCC treatment are attractive for their potential to reduce morbidity while improving survival. However, the application of immunotherapies to this disease has been challenging because HNSCC is profoundly immunosuppressive, resulting in decreased absolute lymphocyte counts, impaired natural killer cell function, reduced antigen-presenting cell function, and a tumor-permissive cytokine profile. Despite these challenges, numerous clinical trials testing the safety and efficacy of immunotherapeutic approaches to HNSCC treatment are currently underway, many of which have produced promising results. This review will summarize immunotherapeutic approaches to HNSCC that are currently undergoing clinical trials.
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Inamura K, Yokouchi Y, Sakakibara R, Kobayashi M, Subat S, Ninomiya H, Nagano H, Nomura K, Okumura S, Ishikawa Y. Relationship of tumor PD-L1 expression withEGFRwild-type status and poor prognosis in lung adenocarcinoma. Jpn J Clin Oncol 2016; 46:935-941. [DOI: 10.1093/jjco/hyw087] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 06/07/2016] [Indexed: 12/25/2022] Open
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Park S, Koh J, Kim DW, Kim M, Keam B, Kim TM, Jeon YK, Chung DH, Heo DS. MET amplification, protein expression, and mutations in pulmonary adenocarcinoma. Lung Cancer 2015; 90:381-7. [DOI: 10.1016/j.lungcan.2015.10.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/20/2015] [Accepted: 10/22/2015] [Indexed: 01/18/2023]
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梁 红, 王 孟. [Mechanism of c-MET in Non-small Cell Lung Cancer and Its Treatment and Testing]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2015; 18:745-51. [PMID: 26706951 PMCID: PMC6015186 DOI: 10.3779/j.issn.1009-3419.2015.12.06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 08/20/2015] [Accepted: 08/23/2015] [Indexed: 02/01/2023]
Abstract
Hepatocyte growth factor/c-MET (HGF/c-MET) signaling pathway can be abnormal activated by many mechanisms such as c-MET mutation, amplification and the overexpression of HGF, and it plays an important role in the development of non-small cell lung cancer (NSCLC), as well as in the tolerance of epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) in NSCLC. Therefore, c-MET is a new molecular target for the therapy of NSCLC since EGFR and ALK. At present, although the c-MET inhibitors have shown a potential prospect in some clinical trials, its assessment of safety and effectiveness in clinical applications, and the choice of testing methods and standards still need a further discussion. In this paper, we summarized the mechanism of c-MET in NSCLC, as well as its treatment prospect and selection of testing methods.
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Affiliation(s)
- 红格 梁
- />100730 北京,中国医学科学院中国协和医科大学北京协和医学院呼吸内科Chinese Academy of Medical Sciences, Chinese Peking Union Medical College, Peking Union Medical College Hospital, Beijing 100730, China
| | - 孟昭 王
- />100730 北京,中国医学科学院中国协和医科大学北京协和医学院呼吸内科Chinese Academy of Medical Sciences, Chinese Peking Union Medical College, Peking Union Medical College Hospital, Beijing 100730, China
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Garajová I, Giovannetti E, Biasco G, Peters GJ. c-Met as a Target for Personalized Therapy. TRANSLATIONAL ONCOGENOMICS 2015. [PMID: 26628860 DOI: 10.4137/togog.s30534] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
MET and its ligand HGF are involved in many biological processes, both physiological and pathological, making this signaling pathway an attractive therapeutic target in oncology. Downstream signaling effects are transmitted via mitogen-activated protein kinase (MAPK), PI3K (phosphoinositide 3-kinase protein kinase B)/AKT, signal transducer and activator of transcription proteins (STAT), and nuclear factor-κB. The final output of the terminal effector components of these pathways is activation of cytoplasmic and nuclear processes leading to increases in cell proliferation, survival, mobilization and invasive capacity. In addition to its role as an oncogenic driver, increasing evidence implicates MET as a common mechanism of resistance to targeted therapies including EGFR and VEGFR inhibitors. In the present review, we summarize the current knowledge on the role of the HGF-MET signaling pathway in cancer and its therapeutic targeting (HGF activation inhibitors, HGF inhibitors, MET antagonists and selective/nonselective MET kinase inhibitors). Recent advances in understanding the role of this pathway in the resistance to current anticancer strategies used in lung, kidney and pancreatic cancer are discussed.
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Affiliation(s)
- Ingrid Garajová
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands. ; Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - Elisa Giovannetti
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands. ; Cancer Pharmacology Lab, AIRC Start-Up Unit, University of Pisa, Pisa, Italy
| | - Guido Biasco
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - Godefridus J Peters
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
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Garajová I, Giovannetti E, Biasco G, Peters GJ. c-Met as a Target for Personalized Therapy. TRANSLATIONAL ONCOGENOMICS 2015; 7:13-31. [PMID: 26628860 PMCID: PMC4659440 DOI: 10.4137/tog.s30534] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 09/20/2015] [Accepted: 09/23/2015] [Indexed: 12/30/2022]
Abstract
MET and its ligand HGF are involved in many biological processes, both physiological and pathological, making this signaling pathway an attractive therapeutic target in oncology. Downstream signaling effects are transmitted via mitogen-activated protein kinase (MAPK), PI3K (phosphoinositide 3-kinase protein kinase B)/AKT, signal transducer and activator of transcription proteins (STAT), and nuclear factor-κB. The final output of the terminal effector components of these pathways is activation of cytoplasmic and nuclear processes leading to increases in cell proliferation, survival, mobilization and invasive capacity. In addition to its role as an oncogenic driver, increasing evidence implicates MET as a common mechanism of resistance to targeted therapies including EGFR and VEGFR inhibitors. In the present review, we summarize the current knowledge on the role of the HGF-MET signaling pathway in cancer and its therapeutic targeting (HGF activation inhibitors, HGF inhibitors, MET antagonists and selective/nonselective MET kinase inhibitors). Recent advances in understanding the role of this pathway in the resistance to current anticancer strategies used in lung, kidney and pancreatic cancer are discussed.
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Affiliation(s)
- Ingrid Garajová
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Sant’Orsola-Malpighi Hospital, Bologna, Italy
| | - Elisa Giovannetti
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
- Cancer Pharmacology Lab, AIRC Start-Up Unit, University of Pisa, Pisa, Italy
| | - Guido Biasco
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Sant’Orsola-Malpighi Hospital, Bologna, Italy
| | - Godefridus J. Peters
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands
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Lee JJX, Chan JJ, Choo SP. Clinical Development of c-MET Inhibition in Hepatocellular Carcinoma. Diseases 2015; 3:306-324. [PMID: 28943627 PMCID: PMC5548260 DOI: 10.3390/diseases3040306] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/04/2015] [Accepted: 10/21/2015] [Indexed: 12/29/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer death. In patients with advanced or unresectable HCC, there are few treatment options. Conventional chemotherapy has limited benefits. Sorafenib, a multi-kinase inhibitor, improves survival, but options for patients intolerant of or progressing on sorafenib are limited. There has been much interest in recent years in molecular therapeutic targets and drug development for HCC. One of the more promising molecular targets in HCC is the cellular-mesenchymal-epithelial transition (c-MET) factor receptor. Encouraging phase II data on two c-MET inhibitors, tivantinib and cabozantinib, has led to phase III trials. This review describes the c-MET/hepatocyte growth factor (HGF) signalling pathway and its relevance to HCC, and discusses the preclinical and clinical trial data for inhibitors of this pathway in HCC.
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Affiliation(s)
- Joycelyn J X Lee
- Division of Medical Oncology, National Cancer Centre Singapore, 11 Hospital Drive, Singapore 169610, Singapore.
| | - Jack J Chan
- Division of Medical Oncology, National Cancer Centre Singapore, 11 Hospital Drive, Singapore 169610, Singapore.
| | - Su Pin Choo
- Division of Medical Oncology, National Cancer Centre Singapore, 11 Hospital Drive, Singapore 169610, Singapore.
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17
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Wu JF, Liu MM, Huang SX, Wang Y. Design and synthesis of novel substituted naphthyridines as potential c-Met kinase inhibitors based on MK-2461. Bioorg Med Chem Lett 2015; 25:3251-5. [DOI: 10.1016/j.bmcl.2015.05.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 05/22/2015] [Accepted: 05/25/2015] [Indexed: 12/14/2022]
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Abstract
The MET receptor tyrosine kinase and its ligand hepatocyte growth factor/scatter factor (HGF/SF) are potential therapeutic targets in many human malignancies, making this pathway an important focus of molecular and cancer research. MET mutations have been detected in various tumours. In addition, many tumour types demonstrate MET and HGF/SF overexpression and amplification. The MET signal transduction cascade is complex, and manifests in a broad spectrum of mitogenic and morphogenic functions, affecting cell proliferation, migration, differentiation, morphology and survival. Cancer cells commandeer the physiological functions of this signalling axis to facilitate invasion and metastasis. Significant progress has been made in the development of agents that inhibit MET-HGF/SF signalling. In this article, we outline the key features of the MET gene, its protein product and the ligand HGF/SF, to provide an overview of this important signalling pathway and offer a summary of the relevant pathological and clinical directions of research.
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Affiliation(s)
- Garret Skead
- Division of Anatomical Pathology, University of Cape Town and National Health Laboratory Service, Groote Schuur hospital, Cape Town, South Africa
| | - Dhirendra Govender
- Division of Anatomical Pathology, University of Cape Town and National Health Laboratory Service, Groote Schuur hospital, Cape Town, South Africa
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Ho-Yen CM, Jones JL, Kermorgant S. The clinical and functional significance of c-Met in breast cancer: a review. Breast Cancer Res 2015; 17:52. [PMID: 25887320 PMCID: PMC4389345 DOI: 10.1186/s13058-015-0547-6] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 03/05/2015] [Indexed: 02/05/2023] Open
Abstract
c-Met is a receptor tyrosine kinase that upon binding of its ligand, hepatocyte growth factor (HGF), activates downstream pathways with diverse cellular functions that are important in organ development and cancer progression. Anomalous c-Met signalling has been described in a variety of cancer types, and the receptor is regarded as a novel therapeutic target. In breast cancer there is a need to develop new treatments, particularly for the aggressive subtypes such as triple-negative and basal-like cancer, which currently lack targeted therapy. Over the last two decades, much has been learnt about the functional role of c-Met signalling in different models of breast development and cancer. This work has been complemented by clinical studies, establishing the prognostic significance of c-Met in tissue samples of breast cancer. While the clinical trials of anti-c-Met therapy in advanced breast cancer progress, there is a need to review the existing evidence so that the potential of these treatments can be better appreciated. The aim of this article is to examine the role of HGF/c-Met signalling in in vitro and in vivo models of breast cancer, to describe the mechanisms of aberrant c-Met signalling in human tissues, and to give a brief overview of the anti-c-Met therapies currently being evaluated in breast cancer patients. We will show that the HGF/c-Met pathway is associated with breast cancer progression and suggest that there is a firm basis for continued development of anti-c-Met treatment, particularly for patients with basal-like and triple-negative breast cancer.
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Affiliation(s)
- Colan M Ho-Yen
- Department of Cellular Pathology, St George's Healthcare NHS Trust, Blackshaw Road, Tooting, London, SW17 0QT, UK.
| | - J Louise Jones
- Centre for Tumour Biology, Barts Cancer Institute, Charterhouse Square, London, EC1M 6BQ, UK.
| | - Stephanie Kermorgant
- Centre for Tumour Biology, Barts Cancer Institute, Charterhouse Square, London, EC1M 6BQ, UK.
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Miyata Y, Asai A, Mitsunari K, Matsuo T, Ohba K, Mochizuki Y, Sakai H. Met in urological cancers. Cancers (Basel) 2014; 6:2387-403. [PMID: 25521854 PMCID: PMC4276973 DOI: 10.3390/cancers6042387] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 12/03/2014] [Accepted: 12/04/2014] [Indexed: 12/18/2022] Open
Abstract
Met is a tyrosine kinase receptor that is considered to be a proto-oncogene. The hepatocyte growth factor (HGF)-Met signaling system plays an important role in tumor growth, invasion, and metastasis in many types of malignancies. Furthermore, Met expression has been reported to be a useful predictive biomarker for disease progression and patient survival in these malignancies. Many studies have focused on the clinical significance and prognostic role of Met in urological cancers, including prostate cancer (PCa), renal cell carcinoma (RCC), and urothelial cancer. Several preclinical studies and clinical trials are in progress. In this review, the current understanding of the pathological role of Met in cancer cell lines, its clinical significance in cancer tissues, and its predictive value in patients with urological cancers are summarized. In particular, Met-related malignant behavior in castration-resistant PCa and the different pathological roles Met plays in papillary RCC and other histological types of RCC are the subjects of focus. In addition, the pathological significance of phosphorylated Met in these cancers is shown. In recent years, Met has been recognized as a potential therapeutic target in various types of cancer; therapeutic strategies used by Met-targeted agents in urological cancers are summarized in this review.
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Affiliation(s)
- Yasuyoshi Miyata
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Akihiro Asai
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Kensuke Mitsunari
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Tomohiro Matsuo
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Kojiro Ohba
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Yasushi Mochizuki
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Hideki Sakai
- Department of Urology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
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