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Ogorek AN, Zhou X, Martell JD. Switchable DNA Catalysts for Proximity Labeling at Sites of Protein-Protein Interactions. J Am Chem Soc 2023; 145:16913-16923. [PMID: 37463457 DOI: 10.1021/jacs.3c05578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Proximity labeling (PL) has emerged as a powerful approach to elucidate proteomes within a defined radius around a protein of interest (POI). In PL, a catalyst is attached to the POI and tags nearby endogenous proteins, which are then isolated by affinity purification and identified by mass spectrometry. Although existing PL methods have yielded numerous biological insights, proteomes with greater spatial resolution could be obtained if PL catalysts could be activated at more specific subcellular locations, such as sites where both the POI and a chemical stimulus are present or sites of protein-protein interactions (PPIs). Here, we report DNA-based switchable PL catalysts that are attached to a POI and become activated only when a secondary molecular trigger is present. The DNA catalysts consist of a photocatalyst and a spectral quencher tethered to a DNA oligomer. They are catalytically inactive by default but undergo a conformational change in response to a specific molecular trigger, thus activating PL. We designed a system in which the DNA catalyst becomes activated on living mammalian cells specifically at sites of Her2-Her3 heterodimers and c-Met homodimers, PPIs known to increase the invasion and growth of certain cancers. While this study employs a Ru(bpy)3-type complex for tagging proteins with biotin phenol, the switchable DNA catalyst design is compatible with diverse synthetic PL photocatalysts. Furthermore, the switchable DNA PL catalysts can be constructed from conformation-switching DNA aptamers that respond to small molecules, ions, and proteins, opening future opportunities for PL in highly specific subcellular locations.
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Affiliation(s)
- Ashley N Ogorek
- Department of Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
| | - Xu Zhou
- Department of Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
| | - Jeffrey D Martell
- Department of Chemistry, University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
- Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53726, United States
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2
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The Emerging Role of c-Met in Carcinogenesis and Clinical Implications as a Possible Therapeutic Target. JOURNAL OF ONCOLOGY 2022; 2022:5179182. [PMID: 35069735 PMCID: PMC8776431 DOI: 10.1155/2022/5179182] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/15/2021] [Accepted: 12/29/2021] [Indexed: 02/08/2023]
Abstract
Background c-MET is a receptor tyrosine kinase receptor (RTK) for the hepatocyte growth factor (HGF). The binding of HGF to c-MET regulates several cellular functions: differentiation, proliferation, epithelial cell motility, angiogenesis, and epithelial-mesenchymal transition (EMT). Moreover, it is known to be involved in carcinogenesis. Comprehension of HGF-c-MET signaling pathway might have important clinical consequences allowing to predict prognosis, response to treatment, and survival rates based on its expression and dysregulation. Discussion. c-MET represents a useful molecular target for novel engineered drugs. Several clinical trials are underway for various solid tumors and the development of new specific monoclonal antibodies depends on the recent knowledge about the definite c-MET role in each different malignance. Recent clinical trials based on c-MET molecular targets result in good safety profile and represent a promising therapeutic strategy for solid cancers, in monotherapy or in combination with other target drugs. Conclusion The list of cell surface receptors crosslinking with the c-MET signaling is constantly growing, highlighting the importance of this pathway for personalized target therapy. Research on the combination of c-MET inhibitors with other drugs will hopefully lead to discovery of new effective treatment options.
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El-Wakil MH, Teleb M. Transforming Type II to Type I c-Met kinase inhibitors via combined scaffold hopping and structure-guided synthesis of new series of 1,3,4-thiadiazolo[2,3-c]-1,2,4-triazin-4-one derivatives. Bioorg Chem 2021; 116:105304. [PMID: 34534756 DOI: 10.1016/j.bioorg.2021.105304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 12/21/2022]
Abstract
Novel 1,3,4-thiadiazolo[2,3-c]-1,2,4-triazin-4-one derivatives 3a-e, 4a-f and 5a-f were designed as Type I c-Met kinase inhibitors based on scaffold hopping of our previous Type II c-Met kinase lead. Target compounds were then synthesized under the guidance of molecular docking analysis to identify the potential inhibitors that fit the binding pocket of c-Met kinase in the characteristic manner as the reported Type I c-Met kinase inhibitors. All synthesized derivatives were evaluated for their c-Met kinase inhibitory activity at 10 µM concentration, where 3d, 5d and 5f displayed >80% inhibition. Further IC50 investigation of these compounds identified 5d as the most potent c-Met kinase inhibitor with IC50 value of 1.95 µM. Moreover, 5d showed selective antitumor activity against c-Met over-expressing colon HCT-116 and lung A549 adenocarcinoma cells with IC50 values of 6.18 and 10.6 µg/ml, respectively. More significantly, 5d effectively inhibited c-Met phosphorylation in the Western blot experiment. Also, 5d induced cellular apoptosis in HCT-116 cancer cells as well as cell cycle arrest with accumulation of cells in G2/M phase. Finally, kinase selectivity profiling of 5d against nine oncogenic kinases revealed its selectivity to only Tyro3 kinase (% inhibition = 80%, IC50 = 3 µM). All these experimental findings clearly demonstrate that 5d is a potential dual acting inhibitor against c-Met and Tyro3 kinases, standing out as a viable lead that deserves further investigation and development to new generation of antitumor agents.
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Affiliation(s)
- Marwa H El-Wakil
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt.
| | - Mohamed Teleb
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
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Zhang J, Chen P, Duan Y, Xiong H, Li H, Zeng Y, Liang G, Tang Q, Wu D. Design, synthesis and biological evaluation of 7H-pyrrolo[2,3-d]pyrimidine derivatives containing 1,8-naphthyridine-4-one fragment. Eur J Med Chem 2021; 215:113273. [PMID: 33601310 DOI: 10.1016/j.ejmech.2021.113273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/20/2021] [Accepted: 02/01/2021] [Indexed: 01/22/2023]
Abstract
In this study, a series of pyrrolo [2,3-d]pyrimidine derivatives containing 1,8-naphthyridine-4-one fragment were synthesized and their biological activity were tested. Most of the target compounds displayed moderate to excellent activity against one or more cancer cell lines and low activity against human normal cell LO2 in vitro. The most promising compound 51, of which the IC50 values were 0.66 μM, 0.38 μM and 0.44 μM against cell lines A549, Hela and MCF-7, shown more remarkable activity and better apoptosis effect than the positive control Cabozantinib. The structure-activity relationships (SARs) indicated that double-EWGs (such as R3 = 2-Cl-4-CF3) on the terminal phenyl rings was a key factor in improving the biological activity. In addition, the further research on compound 51 mainly included c-Met kinase activity and selectivity, concentration dependence, and molecular docking.
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Affiliation(s)
- Jianqing Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China; Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China
| | - Pengqin Chen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China
| | - Yongli Duan
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, PR China
| | - Hehua Xiong
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Quality Control and Pharmacovigilance, Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, 210009, China
| | - Hongmin Li
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China
| | - Yao Zeng
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China
| | - Qidong Tang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China; Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China.
| | - Di Wu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China.
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Xie YH, Chen YX, Fang JY. Comprehensive review of targeted therapy for colorectal cancer. Signal Transduct Target Ther 2020; 5:22. [PMID: 32296018 PMCID: PMC7082344 DOI: 10.1038/s41392-020-0116-z] [Citation(s) in RCA: 771] [Impact Index Per Article: 192.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/24/2019] [Accepted: 12/31/2019] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is among the most lethal and prevalent malignancies in the world and was responsible for nearly 881,000 cancer-related deaths in 2018. Surgery and chemotherapy have long been the first choices for cancer patients. However, the prognosis of CRC has never been satisfying, especially for patients with metastatic lesions. Targeted therapy is a new optional approach that has successfully prolonged overall survival for CRC patients. Following successes with the anti-EGFR (epidermal growth factor receptor) agent cetuximab and the anti-angiogenesis agent bevacizumab, new agents blocking different critical pathways as well as immune checkpoints are emerging at an unprecedented rate. Guidelines worldwide are currently updating the recommended targeted drugs on the basis of the increasing number of high-quality clinical trials. This review provides an overview of existing CRC-targeted agents and their underlying mechanisms, as well as a discussion of their limitations and future trends.
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Affiliation(s)
- Yuan-Hong Xie
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 145 Middle Shandong Road, 200001, Shanghai, China
| | - Ying-Xuan Chen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 145 Middle Shandong Road, 200001, Shanghai, China.
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 145 Middle Shandong Road, 200001, Shanghai, China.
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RNAm expression profile of cancer marker genes in HepG2 cells treated with different concentrations of a new indolin-3-one from Pseudomonas aeruginosa. Sci Rep 2018; 8:12781. [PMID: 30143666 PMCID: PMC6109079 DOI: 10.1038/s41598-018-30893-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 08/08/2018] [Indexed: 12/25/2022] Open
Abstract
The present study tested the effects of a newly identified indolin-3-one compound (compound 1), produced by Pseudomonas aeruginosa, on HepG2 cells. The MTT assays demonstrated decreased metabolic activities in HepG2 cells treated with compound 1, with dose- and time-dependent intensifying effect, starting at a concentration of 40 µM. The IC50 after 24, 48, 72, and 96 h treatments were 41.35, 52.7, 92.79 and 66.65 μM of compound 1, respectively. Below 80 µM, no significative damage on erythrocytes membranes was observed by the hemolytic assays. The RT-qPCR revealed that the compound modulated key genes involved in carcinogenesis process, indicating possible indolin-3-one mechanisms of action. The data showed that gene expression alterations promoted by compound 1, in concentrations up to 60 μM after 48 h, led to a decrease in cellular progression and there was no direct cellular damage. In addition, non-cytotoxic concentrations of compound 1 halved the concentration of the chemotherapeutic doxorubicin, maintaining similar therapeutic effect against HepG2 cells. The novelty of the molecule and the biological activities observed in the present study emphasize the potential of the compound 1 in cancer therapy research.
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7
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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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Bahrami A, Shahidsales S, Khazaei M, Ghayour-Mobarhan M, Maftouh M, Hassanian SM, Avan A. C-Met as a potential target for the treatment of gastrointestinal cancer: Current status and future perspectives. J Cell Physiol 2017; 232:2657-2673. [DOI: 10.1002/jcp.25794] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 01/10/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Afsane Bahrami
- Molecular Medicine Group, Department of Modern Sciences and Technology; Mashhad University of Medical Sciences; Mashhad Iran
- Student Research Center, Faculty of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Soodabeh Shahidsales
- Cancer Research Center; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
| | - Majid Khazaei
- Neurogenic Inflammatory Research Center and Department of Physiology; Mashhad University of Medical Sciences; Mashhad Iran
| | - Majid Ghayour-Mobarhan
- Metabolic syndrome Research Center; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
| | - Mina Maftouh
- Metabolic syndrome Research Center; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
| | - Seyed Mahdi Hassanian
- Metabolic syndrome Research Center; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
- Department of Medical Biochemistry; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
| | - Amir Avan
- Metabolic syndrome Research Center; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
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Hyuga S, Hyuga M, Oshima N, Maruyama T, Kamakura H, Yamashita T, Yoshimura M, Amakura Y, Hakamatsuka T, Odaguchi H, Goda Y, Hanawa T. Ephedrine alkaloids-free Ephedra Herb extract: a safer alternative to ephedra with comparable analgesic, anticancer, and anti-influenza activities. J Nat Med 2016; 70:571-83. [PMID: 26943796 PMCID: PMC4935746 DOI: 10.1007/s11418-016-0979-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 02/15/2016] [Indexed: 12/30/2022]
Abstract
It is generally accepted that the primary pharmacological activities and adverse effects of Ephedra Herb are caused by ephedrine alkaloids. Interestingly, our research shows that Ephedra Herb also has ephedrine alkaloid-independent pharmacological actions, such as c-MET inhibitory activity. This study describes the preparation of an ephedrine alkaloids-free Ephedra Herb extract (EFE) by ion-exchange column chromatography, as well as in vitro and in vivo evaluation of its pharmacological actions and toxicity. We confirmed that EFE suppressed hepatocyte growth factor (HGF)-induced cancer cell motility by preventing both HGF-induced phosphorylation of c-Met and its tyrosine kinase activity. We also investigated the analgesic effect of EFE. Although the analgesic effect of Ephedra Herb has traditionally been attributed to pseudoephedrine, oral administration of EFE reduced formalin-induced pain in a dose-dependent manner in mice. Furthermore, we confirmed the anti-influenza virus activity of EFE by showing inhibition of MDCK cell infection in a concentration-dependent manner. All assessments of toxicity, even after repeated oral administration, suggest that EFE would be a safer alternative to Ephedra Herb. The findings described here suggest that EFE has c-Met inhibitory action, analgesic effect, and anti-influenza activity, and that it is safer than Ephedra Herb extract itself. Therefore, EFE could be a useful pharmacological agent.
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Affiliation(s)
- Sumiko Hyuga
- Oriental Medicine Research Center, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan.
| | - Masashi Hyuga
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Naohiro Oshima
- Department of Pharmaceutical Sciences, International University of Health and Welfare, 2600-1, Kitakanemaru, Ohtawara, Tochigi, 324-8501, Japan
| | - Takuro Maruyama
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Hiroyuki Kamakura
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Tadatoshi Yamashita
- TOKIWA Phytochemical CO., Ltd., 158 Kinoko, Sakura-shi, Chiba, 285-0801, Japan
| | - Morio Yoshimura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| | - Yoshiaki Amakura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| | - Takashi Hakamatsuka
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Hiroshi Odaguchi
- Oriental Medicine Research Center, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Yukihiro Goda
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Toshihiko Hanawa
- Oriental Medicine Research Center, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
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Lei H, Hu G, Wang Y, Han P, Liu Z, Zhao Y, Gong P. Design, Synthesis, and Biological Evaluation of 4-Phenoxyquinoline Derivatives Containing Benzo[d]thiazole-2-yl Urea as c-Met Kinase Inhibitors. Arch Pharm (Weinheim) 2016; 349:651-61. [DOI: 10.1002/ardp.201600003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 05/11/2016] [Accepted: 05/20/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Hongrui Lei
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
| | - Gang Hu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
| | - Yu Wang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
| | - Pei Han
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
| | - Zijian Liu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
| | - Yanfang Zhao
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
| | - Ping Gong
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education; Shenyang Pharmaceutical University; Shenyang P. R. China
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Oshima N, Yamashita T, Hyuga S, Hyuga M, Kamakura H, Yoshimura M, Maruyama T, Hakamatsuka T, Amakura Y, Hanawa T, Goda Y. Efficiently prepared ephedrine alkaloids-free Ephedra Herb extract: a putative marker and antiproliferative effects. J Nat Med 2016; 70:554-62. [PMID: 26976141 PMCID: PMC4935757 DOI: 10.1007/s11418-016-0977-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/07/2016] [Indexed: 11/27/2022]
Abstract
Ephedrine alkaloids (EAs) have been considered the main pharmacologically active substances in Ephedra Herb (麻黄, Mao; EH) since they were first identified by Prof. N. Nagai, and are known to induce palpitation, hypertension, insomnia, and dysuria as side effects. Therefore, the administration of drugs containing EH to patients with cardiovascular-related diseases is severely contraindicated. While our previous studies suggest that some of the effects of EH may not be due to EAs, considering their side effects would be expedient to develop a new EAs-free EH extract (EFE). Here, we established a preparation method for EFE and revealed its chemical composition, including the content of herbacetin, a flavonoid aglycon present in EH and a potential putative marker for EFE quality control. In addition, we showed the antiproliferative effects of EFE against the H1975 non-small cell lung cancer (NSCLC) cell line. EFE was prepared from EH extract using the ion exchange resin SK-1B. LC/Orbitrap MS analysis revealed the removal of EAs, 6-methoxykynurenic acid, and 6-hydroxykynurenic acid from the original extract. Quantitative analysis of herbacetin using LC/MS in acid-hydrolyzed EFE showed that its content was 0.104 %. Although several alkaloidal constituents were removed from EH extract, the antiproliferative effect of EFE against H1975 cells was comparable to that of EH extract. These results indicate that EFE retained the anticancer effect of EH and demonstrated its potential for future development as a new herbal medicine with reduced side effects.
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Affiliation(s)
- Naohiro Oshima
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan.,Department of Pharmaceutical Sciences, International University of Health and Welfare, 2600-1, Kitakanemaru, Ohtawara city, Tochigi, 324-8501, Japan
| | - Tadatoshi Yamashita
- TOKIWA Phytochemical Co., Ltd., 158 Kinoko, Sakura-shi, Chiba, 285-0801, Japan
| | - Sumiko Hyuga
- Department of Clinical Research, Oriental Medicine Research Center of Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Masashi Hyuga
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Hiroyuki Kamakura
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Morio Yoshimura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| | - Takuro Maruyama
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Takashi Hakamatsuka
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Yoshiaki Amakura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| | - Toshihiko Hanawa
- Department of Clinical Research, Oriental Medicine Research Center of Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Yukihiro Goda
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan.
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12
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Jia Y, Dai G, Wang J, Gao X, Zhao Z, Duan Z, Gu B, Yang W, Wu J, Ju Y, Wang M, Li Z. c-MET inhibition enhances the response of the colorectal cancer cells to irradiation in vitro and in vivo. Oncol Lett 2016; 11:2879-2885. [PMID: 27073569 DOI: 10.3892/ol.2016.4303] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 01/05/2016] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to investigate the effect of hepatocyte growth factor receptor (c-MET) inhibition on the viability of colon cancer cells and xenografts exposed to irradiation using short hairpin (sh)RNA or the c-MET inhibitor PHA665752. The underlying mechanisms were also investigated. Human colorectal adenocarcinoma HT-29 cells were infected with a lentivirus expressing shRNAs against c-MET and were irradiated at 0, 2, 4, 6 and 8 Gy. The viability of the cells was assessed by alamarBlue® assays. Mice bearing human colon carcinoma SW620 xenografts were randomly selected to receive 2.5% dimethyl sulfoxide (DMSO), 25 mg/kg PHA665752 intraperitoneally once every 2 days for 3 weeks, irradiation at 10 Gy, or 25 mg/kg PHA665752 intraperitoneally once every 2 days for 3 weeks followed 24 h later by irradiation at 10 Gy. The mean tumor volume (MTV) was measured. The apoptotic rate of cells was detected by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assays, and double stranded break marker antibody γ-H2AX and hypoxia inducible factor (HIF)-1α expression was examined by immunohistochemistry. alamarBlue assays revealed that c-MET downregulation by shRNA markedly accentuated the irradiation-induced reduction in the viability of HT-29 cells compared with HT-29 cells irradiated at the same doses (P<0.05). A combination of irradiation and PHA665752 caused an additional reduction in the MTV (382.8±42.4 mm3; P<0.01 vs. irradiation and PHA665752, 998.0±180.6 and 844.8±190.0 mm3, respectively). TUNEL assays revealed that irradiation and PHA665752 alone caused significant apoptosis of the SW620 cells in the tumor xenografts (P<0.01 vs. DMSO). The apoptotic index in the tumor xenografts of mice treated with a combination of irradiation and PHA665752 was significantly increased compared with mice treated with either agent alone (P<0.01). The combination of irradiation and PHA665752 was also associated with a marked increase in γ-H2AX levels and a significant decrease in HIF-1α expression in the xenografts (P<0.01). In conclusion, c-MET inhibition sensitizes colorectal cancer cells to irradiation by enhancing the formation of DNA double strand breaks and possibly alleviating tumor hypoxia.
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Affiliation(s)
- Yitao Jia
- Third Department of Oncology, Hebei General Hospital, Shijiazhuang, Hebei 050011, P.R. China
| | - Guangyao Dai
- Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China; Department of Surgery, The First Hospital of Shijiazhuang, Shijiazhuang, Hebei 050011, P.R. China
| | - Jinxi Wang
- Fourth Department of General Surgery, The First Hospital of Handan, Handan, Hebei 056002, P.R. China
| | - Xing Gao
- Second Department of Abdominal Surgery, The First Affiliated Hospital of Xingtai Medical College, Xingtai, Hebei 054001, P.R. China
| | - Zhaolong Zhao
- Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China
| | - Zhihui Duan
- Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China
| | - Bin Gu
- Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China
| | - Weiguang Yang
- Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China
| | - Jianhua Wu
- Experimental Animal Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yingchao Ju
- Experimental Animal Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Mingxia Wang
- Department of Pharmacy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Zhongxin Li
- Second Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, P.R. China
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Yuan DD, Zhu ZX, Zhang X, Liu J. Targeted therapy for gastric cancer: Current status and future directions (Review). Oncol Rep 2016; 35:1245-54. [PMID: 26718131 DOI: 10.3892/or.2015.4528] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/18/2015] [Indexed: 11/06/2022] Open
Abstract
According to the 2012 statistics of the International Agency for Research on Cancer (IARC), gastric cancer is the fifth most common malignancy, and the third leading cause of cancer-related deaths worldwide. Conventional chemotherapy and radiation have shown limited efficacy for advanced gastric cancer, showing an overall survival (OS) rate of ~10 months. Trastuzumab, a monoclonal antibody against human epidermal growth factor receptor 2 (HER2), is the first approved molecularly targeted agent for HER2-overexpressing gastric cancer, which was found to prolong the OS and the progression-free survival (PFS) of patients. However, HER2 overexpression is present only in a minority of patients with gastric cancer. Hence, other targeted agents are urgently needed. Ramucirumab, a novel human IgG1 monoclonal antibody that selectively targets the extracellular domain of VEGF receptor 2 (VEGFR2), is regarded as a new standard second-line treatment for patients with advanced gastric cancer. The combination of two or more targeted agents directed against two different molecular targets may improve the survival of patients with advanced gastric cancer. Although great efforts have been made, the effect of targeted therapy for gastric cancer is limited. One key reason is that participants in clinical trials for new targeted agents were not selected by detection of the targeted molecule. Here, we review clinical trials related to molecular targets such as anti-epidermal growth factor receptor signaling including anti-HER2 and anti-EGFR1, anti-VEGF signaling, anti-mammalian target of rapamycin (mTOR), tyrosine kinase inhibitors (TKIs) and anti-MET.
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Affiliation(s)
- Dan-Dan Yuan
- Department of Internal Oncology, Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Zhong-Xiu Zhu
- Department of Internal Oncology Ward 7, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan, Shandong 250031, P.R. China
| | - Xia Zhang
- Department of Internal Oncology, Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Jie Liu
- Department of Internal Oncology, Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
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Zaman S, Shentu S, Yang J, He J, Orlowski RZ, Stellrecht CM, Gandhi V. Targeting the pro-survival protein MET with tivantinib (ARQ 197) inhibits growth of multiple myeloma cells. Neoplasia 2015; 17:289-300. [PMID: 25810013 PMCID: PMC4372650 DOI: 10.1016/j.neo.2015.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 01/19/2015] [Accepted: 01/23/2015] [Indexed: 12/29/2022] Open
Abstract
The hepatocyte growth factor (HGF)/MNNG HOS transforming gene (MET) pathway regulates cell growth, survival, and migration. MET is mutated or amplified in several malignancies. In myeloma, MET is not mutated, but patients have high plasma concentrations of HGF, high levels of MET expression, and gene copy number, which are associated with poor prognosis and advanced disease. Our previous studies demonstrated that MET is critical for myeloma cell survival and its knockdown induces apoptosis. In our current study, we tested tivantinib (ARQ 197), a small-molecule pharmacological MET inhibitor. At clinically achievable concentrations, tivantinib induced apoptosis by > 50% in all 12 human myeloma cell lines tested. This biologic response was associated with down-regulation of MET signaling and inhibition of the mitogen-activated protein kinase and phosphoinositide 3-kinase pathways, which are downstream of the HGF/MET axis. Tivantinib was equally effective in inducing apoptosis in myeloma cell lines resistant to standard chemotherapy (melphalan, dexamethasone, bortezomib, and lenalidomide) as well as in cells that were co-cultured with a protective bone marrow microenvironment or with exogenous cytokines. Tivantinib induced apoptosis in CD138 + plasma cells from patients and demonstrated efficacy in a myeloma xenograft mouse model. On the basis of these data, we initiated a clinical trial for relapsed/refractory multiple myeloma (MM). In conclusion, MET inhibitors may be an attractive target-based strategy for the treatment of MM.
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Affiliation(s)
- Shadia Zaman
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Shujun Shentu
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jing Yang
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jin He
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Robert Z Orlowski
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Christine M Stellrecht
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, TX, USA
| | - Varsha Gandhi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, TX, USA; Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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15
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Zhang J, Jiang X, Jiang Y, Guo M, Zhang S, Li J, He J, Liu J, Wang J, Ouyang L. Recent advances in the development of dual VEGFR and c-Met small molecule inhibitors as anticancer drugs. Eur J Med Chem 2015; 108:495-504. [PMID: 26717201 DOI: 10.1016/j.ejmech.2015.12.016] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 12/05/2015] [Accepted: 12/10/2015] [Indexed: 02/05/2023]
Abstract
Vascular endothelial growth factor receptor (VEGFR) is a very important receptor tyrosine kinase (RTK) that can induce angiogenesis, increase cell growth and metastasis, reduce apoptosis, alter cytoskeletal function, and affect other biologic changes. Moreover, it is identified to be deregulated in varieties of human cancers. Therefore, VEGFR turn out to be a remarkable target of significant types of anticancer drugs in clinical trials. On the other side, c-Met is the receptor of hepatocyte growth factor (HGF) and a receptor tyrosine kinase. Previous studies have shown that c-Met elicits many different signaling pathways mediating cell proliferation, migration, differentiation, and survival. Furthermore, the correlation between aberrant signaling of the HGF/c-Met pathway and aggressive tumor growth, poor prognosis in cancer patients has been established. Recent reports had shown that c-Met/HGF and VEGFR/VEGF (vascular endothelial growth factor) can act synergistically in the progression of many diseases. They were also found to be over expressed in many human cancers. Thus, in a variety of malignancies, VEGFR and c-Met receptor tyrosine kinases have acted as therapeutic targets. With the development of molecular biology techniques, further understanding of the human tumor disease pathogenesis and interrelated signaling pathways known to tumor cells, using a single target inhibitors have been difficult to achieve the desired therapeutic effect. At this point, with respect to the combination of two inhibitors, a single compound which is able to inhibit both VEGFR and c-Met may put forward the advantage of raising anticancer activity. With the strong interest in these compounds, this review represents a renewal of previous works on the development of dual VEGFR and c-Met small molecule inhibitors as novel anti-cancer agents. Newly collection derivatives have been mainly describing in their biological profiles and chemical structures.
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Affiliation(s)
- Jin Zhang
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiangdong Jiang
- Department of Information Engineering, Chongqing Vocational Institute of Safety Technology, Chongqing, 404020, China
| | - Yingnan Jiang
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mingrui Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Shouyue Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Jingjing Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Jun He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Jinhui Wang
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Liang Ouyang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China.
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Pérez-Ramírez C, Cañadas-Garre M, Molina MÁ, Faus-Dáder MJ, Calleja-Hernández MÁ. MET/HGF targeted drugs as potential therapeutic strategies in non-small cell lung cancer. Pharmacol Res 2015; 102:90-106. [PMID: 26413995 DOI: 10.1016/j.phrs.2015.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 09/22/2015] [Accepted: 09/22/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Cristina Pérez-Ramírez
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda. Fuerzas Armadas 2, Granada, Spain; Department of Biochemistry, Faculty of Pharmacy, University of Granada, Campus Universitario de Cartuja, s/n, 18071 Granada, Spain.
| | - Marisa Cañadas-Garre
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda. Fuerzas Armadas 2, Granada, Spain.
| | - Miguel Ángel Molina
- Pangaea Biotech, S.L., Hospital Universitario Quirón Dexeus, C/Sabino Arana, 5-19, 08028 Barcelona, Spain.
| | - María José Faus-Dáder
- Department of Biochemistry, Faculty of Pharmacy, University of Granada, Campus Universitario de Cartuja, s/n, 18071 Granada, Spain.
| | - Miguel Ángel Calleja-Hernández
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda. Fuerzas Armadas 2, Granada, Spain; Department of Pharmacology, Faculty of Pharmacy, University of Granada, Campus Universitario de Cartuja, s/n, 18071 Granada, Spain.
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17
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Dasatinib Modulates Invasive and Migratory Properties of Canine Osteosarcoma and has Therapeutic Potential in Affected Dogs. Transl Oncol 2015; 8:231-8. [PMID: 26310368 PMCID: PMC4562978 DOI: 10.1016/j.tranon.2015.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/18/2015] [Accepted: 03/24/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND: This investigation sought to elucidate the relationship between hepatocyte growth factor (HGF)–induced metastatic behavior and the tyrosine kinase inhibitors (TKIs) crizotinib and dasatinib in canine osteosarcoma (OS). Preliminary evidence of an apparent clinical benefit from adjuvant therapy with dasatinib in four dogs is described. METHODS: The inhibitors were assessed for their ability to block phosphorylation of MET; reduce HGF-induced production of matrix metalloproteinase (MMP); and prevent invasion, migration, and cell viability in canine OS cell lines. Oral dasatinib (0.75 mg/kg) was tested as an adjuvant therapy in four dogs with OS. RESULTS: Constitutive phosphorylation of MET was detected in two cell lines, and this was unaffected by 20-nM incubation with either dasatinib or crizotinib. Incubation of cell lines with HGF (MET ligand) increased cell migration and invasion in both cell lines and increased MMP-9 activity in one. Dasatinib suppressed OS cell viability and HGF-induced invasion and migration, whereas crizotinib reduced migration and MMP-9 production but did not inhibit invasion or viability. CONCLUSIONS: Invasion, migration, and viability of canine OS cell lines are increased by exogenous HGF. HGF induces secretion of different forms of MMP in different cell lines. The HGF-driven increase in viability and metastatic behaviors we observed are more uniformly inhibited by dasatinib. These observations suggest a potential clinical benefit of adjuvant dasatinib treatment for dogs with OS.
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18
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Pérez-Ramírez C, Cañadas-Garre M, Jiménez-Varo E, Faus-Dáder MJ, Calleja-Hernández MÁ. MET: a new promising biomarker in non-small-cell lung carcinoma. Pharmacogenomics 2015; 16:631-47. [PMID: 25893986 DOI: 10.2217/pgs.15.11] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Non-small-cell lung cancer (NSCLC) leads cancer-related deaths worldwide. Mutations in the kinase domain of the EGFR gene provide sensitivity to tyrosine kinase inhibitors (TKI) drugs. TKI show initial response rates over 75% in mutant EGFR-NSCLC patients, although most of these patients acquire resistance to EGFR inhibitors after therapy. EGFR-TKI resistance mechanisms include amplification in MET and its ligand, and also MET mutations. MET signaling dysregulation has been involved in tumor cell growth, survival, migration and invasion, angiogenesis and activation of several pathways, therefore representing an attractive target for anticancer drug development. In this review, we will discuss MET-related mechanisms of EGFR-TKI resistance in NSCLC, as well as the main drugs targeted to inhibit MET pathway.
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Affiliation(s)
- Cristina Pérez-Ramírez
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda Fuerzas Armadas, 2, 18014 Granada, Spain
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19
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Zhang Q, Sun J, Lu T, Zhang J, Wu C, Li L, He Z, Zhao Y, Liu X. A rapid and sensitive LC-MS/MS method for evaluation of the absolute oral bioavailability of a novel c-Met tyrosine kinase inhibitor QBH-196 in rats. Biomed Chromatogr 2015; 29:1650-6. [PMID: 25880630 DOI: 10.1002/bmc.3474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 01/20/2015] [Accepted: 03/07/2015] [Indexed: 01/31/2023]
Abstract
A sensitive, selective and high-throughput UPLC-MS/MS method was developed and validated for the determination of a novel c-Met tyrosine kinase inhibitor, QBH-196, in rat plasma. QBH-196 and its analog BH357 (IS) were extracted from rat plasma using a mixture of dichloromethane and N-hexane (2:3, v/v). The chromatographic separation was carried out on Phenomenex C18 column (50 × 2.1 mm, 2.6 µm particle size) with a gradient mobile phase of methanol (A) and water containing 0.05% formic acid (B) at a flow rate of 0.2 mL/min. The assay was performed by positive electrospray ionization in multiple reaction monitoring mode using transitions of m/z 622.68 → 140.41 for QBH-196 and m/z 591.19 →126.21 for the IS, respectively. Good linearity was obtained over the concentration range of 8.0-4000 ng/mL (r(2) > 0.99) for QBH-196 and the lower limit of quantification was 8.0 ng/mL in rat plasma. Validations of the method, including its sensitivity, extraction recovery, matrix effect, intra- and inter-day precision, accuracy and stability, were all within acceptable limits. The established method was successfully applied to determine absolute oral bioavailability of QBH-196 in rats for the first time. The mean oral absolute bioavailability of QBH-196 was found to be about 40.8% and the elimination half-life was 40.0 ± 13.1 h. This result suggested that QBH-196 exhibits good oral absorption in vivo, which is very important for the further development of QBH-196 as a new oral anticancer drug.
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Affiliation(s)
- Qi Zhang
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Jin Sun
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Tianshu Lu
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Jinling Zhang
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Chunnuan Wu
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Lin Li
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Zhonggui He
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Yanfang Zhao
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Xiaohong Liu
- Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
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20
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Ju P, Liu Z, Jiang Y, Zhao S, Zhang L, Zhang Y, Gu L, Tang X, Bi K, Chen X. Determination of a novel anticancer c-Met inhibitor LS-177 in rat plasma and tissues with a validated UPLC-MS/MS method: application to pharmacokinetics and tissue distribution study. Biomed Chromatogr 2014; 29:1103-11. [DOI: 10.1002/bmc.3397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 06/24/2014] [Accepted: 10/25/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Ping Ju
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Zhenzhen Liu
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Yu Jiang
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Simin Zhao
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Lunhui Zhang
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Yuanyuan Zhang
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Liqiang Gu
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Xing Tang
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Kaishun Bi
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Xiaohui Chen
- School of Pharmacy; Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
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21
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Sylvester PW. Targeting met mediated epithelial-mesenchymal transition in the treatment of breast cancer. Clin Transl Med 2014; 3:30. [PMID: 26932375 PMCID: PMC4883993 DOI: 10.1186/s40169-014-0030-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 08/19/2014] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal epithelial transition factor receptor (Met) is a receptor tyrosine kinase that plays a critical role in promoting cancer cell malignant progression. Met is activated by its ligand hepatocyte growth factor (HGF). HGF-dependent Met activation plays an important role in stimulating epithelial-mesenchymal transition (EMT) in tumor cells, resulting in increased tumor cell proliferation, survival, motility, angiogenesis, invasion, and metastasis. The HGF/Met axis has thus attracted great interest as a potential target in the development of novel cancer therapies. In an effort to suppress tumor cell malignant progression, efforts have been made to develop agents capable of inhibiting inhibit Met-induced EMT, including specific Met tyrosine kinase inhibitors, HGF antagonists that interfere with HGF binding to Met, and antibodies that prevent Met activation and/or dimerization. Tocotrienols, a subgroup within the vitamin E family of compounds, display potent anticancer activity that results, at least in part, from inhibition of HGF-dependent Met activation and signaling. The present review will provide a brief summary of the increasing importance of the HGF/Met axis as an attractive target for cancer chemotherapy and the role of tocotrienols in suppressing Met activation, signaling and HGF-induced EMT in breast cancer cells. Evidence provided suggests that γ-tocotrienol therapy may afford significant benefit in the treatment of breast cancers characterized by Met dysregulation.
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Affiliation(s)
- Paul W Sylvester
- School of Pharmacy, University of Louisiana at Monroe, 700 University Avenue, Monroe, 71209-0470, LA, USA.
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22
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USP8 modulates ubiquitination of LRIG1 for Met degradation. Sci Rep 2014; 4:4980. [PMID: 24828152 PMCID: PMC4021411 DOI: 10.1038/srep04980] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 04/28/2014] [Indexed: 11/09/2022] Open
Abstract
The Met receptor tyrosine kinase is an attractive target for cancer therapy as it promotes invasive tumor growth. SAIT301 is a novel anti-Met antibody, which induces LRIG1-mediated Met degradation and inhibits tumor growth. However, detailed downstream mechanism by which LRIG1 mediates target protein down-regulation is unknown. In the present study, we discovered that SAIT301 induces ubiquitination of LRIG1, which in turn promotes recruitment of Met and LRIG1 complex to the lysosome through its interaction with Hrs, resulting in concomitant degradation of both LRIG1 and Met. We also identified USP8 as a LRIG1-specific deubiquitinating enzyme, reporting the interaction between USP8 and LRIG1 for the first time. SAIT301 triggers degradation of LRIG1 by inhibiting the interaction of LRIG1 and USP8, which regulates ubiquitin modification and stability of LRIG1. In summary, SAIT301 employs ubiquitination of LRIG1 for its highly effective Met degradation. This unique feature of SAIT301 enables it to function as a fully antagonistic antibody without Met activation. We found that USP8 is involved in deubiquitination of LRIG1, influencing the efficiency of Met degradation. The relation of Met, LRIG1 and USP8 strongly supports the potential clinical benefit of a combination treatment of a USP8 inhibitor and a Met inhibitor, such as SAIT301.
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Mai A, Muharram G, Barrow-McGee R, Baghirov H, Rantala J, Kermorgant S, Ivaska J. Distinct c-Met activation mechanisms induce cell rounding or invasion through pathways involving integrins, RhoA and HIP1. J Cell Sci 2014; 127:1938-52. [DOI: 10.1242/jcs.140657] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
ABSTRACT
Many carcinomas have acquired oncogenic mechanisms for activating c-Met, including c-Met overexpression and excessive autocrine or paracrine stimulation with hepatocyte growth factor (HGF). However, the biological outcome of c-Met activation through these distinct modes remains ambiguous. Here, we report that HGF-mediated c-Met stimulation triggers a mesenchymal-type collective cell invasion. By contrast, the overexpression of c-Met promotes cell rounding. Moreover, in a high-throughput siRNA screen that was performed using a library of siRNAs against putative regulators of integrin activity, we identified RhoA and the clathrin-adapter protein HIP1 as crucial c-Met effectors in these morphological changes. Transient RhoA activation was necessary for the HGF-induced invasion, whereas sustained RhoA activity regulated c-Met-induced cell rounding. In addition, c-Met-induced cell rounding correlated with the phosphorylation of filamin A and the downregulation of active cell-surface integrins. By contrast, a HIP1-mediated increase in β1-integrin turnover was required for the invasion triggered by HGF. Taken together, our results indicate that c-Met induces distinct cell morphology alterations depending on the stimulus that activates c-Met.
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Affiliation(s)
- Anja Mai
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
- Department of Biochemistry and Food Chemistry, University of Turku, Turku 20521, Finland
| | - Ghaffar Muharram
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
| | - Rachel Barrow-McGee
- Spatial Signalling Team, Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK
| | - Habib Baghirov
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
| | - Juha Rantala
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
| | - Stéphanie Kermorgant
- Spatial Signalling Team, Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK
| | - Johanna Ivaska
- Turku Centre for Biotechnology, University of Turku, Turku 20521, Finland
- VTT Technical Research Centre of Finland, Medical Biotechnology, Turku 20520, Finland
- Department of Biochemistry and Food Chemistry, University of Turku, Turku 20521, Finland
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24
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Kalantzaki K, Bei ES, Exarchos KP, Zervakis M, Garofalakis M, Fotiadis DI. Nonparametric network design and analysis of disease genes in oral cancer progression. IEEE J Biomed Health Inform 2014; 18:562-73. [PMID: 24608056 DOI: 10.1109/jbhi.2013.2274643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Biological networks in living organisms can be seen as the ultimate means of understanding the underlying mechanisms in complex diseases, such as oral cancer. During the last decade, many algorithms based on high-throughput genomic data have been developed to unravel the complexity of gene network construction and their progression in time. However, the small size of samples compared to the number of observed genes makes the inference of the network structure quite challenging. In this study, we propose a framework for constructing and analyzing gene networks from sparse experimental temporal data and investigate its potential in oral cancer. We use two network models based on partial correlations and kernel density estimation, in order to capture the genetic interactions. Using this network construction framework on real clinical data of the tissue and blood at different time stages, we identified common disease-related structures that may decipher the association between disease state and biological processes in oral cancer. Our study emphasizes an altered MET (hepatocyte growth factor receptor) network during oral cancer progression. In addition, we demonstrate that the functional changes of gene interactions during oral cancer progression might be particularly useful for patient categorization at the time of diagnosis and/or at follow-up periods.
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Liu CW, Lai CL, Lin YH, Teng LW, Yang SC, Wei WY, Lin SF, Yang JY, Huang HJ, Wang RW, Chiang CC, Lee MH, Wang YC, Chuang SH, Chang JM, Lee YSE, Huang JJ. Design and synthesis of pyrrole–5-(2,6-dichlorobenzyl)sulfonylindolin-2-ones with C-3′ side chains as potent Met kinase inhibitors. RSC Adv 2014. [DOI: 10.1039/c4ra08720h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Subnanomolar Met inhibitors.
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Affiliation(s)
- Chia-Wei Liu
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Chun-Liang Lai
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Yu-Hsiang Lin
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Li-Wei Teng
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Sheng-chuan Yang
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Win-Yin Wei
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Shu Fu Lin
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Ju-Ying Yang
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Hung-Jyun Huang
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Ru-Wen Wang
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | | | - Mei-Hui Lee
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | - Yu-Chuan Wang
- Department of Applied Chemistry
- National Chiayi University
- Chiayi City 60004, Taiwan
| | | | - Jia-Ming Chang
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
| | | | - Jiann-Jyh Huang
- Development Center for Biotechnology
- New Taipei City 22180, Taiwan
- Department of Applied Chemistry
- National Chiayi University
- Chiayi City 60004, Taiwan
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Phillip CJ, Zaman S, Shentu S, Balakrishnan K, Zhang J, Baladandayuthapani V, Taverna P, Redkar S, Wang M, Stellrecht CM, Gandhi V. Targeting MET kinase with the small-molecule inhibitor amuvatinib induces cytotoxicity in primary myeloma cells and cell lines. J Hematol Oncol 2013; 6:92. [PMID: 24326130 PMCID: PMC3878866 DOI: 10.1186/1756-8722-6-92] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Accepted: 12/02/2013] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND MET is a receptor tyrosine kinase that is activated by the ligand HGF and this pathway promotes cell survival, migration, and motility. In accordance with its oncogenic role, MET is constitutively active, mutated, or over-expressed in many cancers. Corollary to its impact, inhibition of MET kinase activity causes reduction of the downstream signaling and demise of cells. In myeloma, a B-cell plasma malignancy, MET is neither mutated nor over-expressed, however, HGF is increased in plasma or serum obtained from myeloma patients and this was associated with poor prognosis. The small-molecule, amuvatinib, inhibits MET receptor tyrosine kinase. Based on this background, we hypothesized that targeting the HGF/MET signaling pathway is a rational approach to myeloma therapy and that myeloma cells would be sensitive to amuvatinib. METHODS Expression of MET and HGF mRNAs in normal versus malignant plasma cells was compared during disease progression. Cell death and growth as well as MET signaling pathway were assessed in amuvatinib treated primary myeloma cells and cell lines. RESULTS There was a progressive increase in the transcript levels of HGF (but not MET) from normal plasma cells to refractory malignant plasma cells. Amuvatinib readily inhibited MET phosphorylation in primary CD138+ cells from myeloma patients and in concordance, increased cell death. A 48-hr amuvatinib treatment in high HGF-expressing myeloma cell line, U266, resulted in growth inhibition. Levels of cytotoxicity were time-dependent; at 24, 48, and 72 h, amuvatinib (25 μM) resulted in 28%, 40%, and 55% cell death. Consistent with these data, there was an amuvatinib-mediated decrease in MET phosphorylation in the cell line. Amuvatinib at concentrations of 5, 10, or 25 μM readily inhibited HGF-dependent MET, AKT, ERK and GSK-3-beta phosphorylation. MET-mediated effects were not observed in myeloma cell line that has low MET and/or HGF expression. CONCLUSIONS These data suggest that at the cellular level MET/HGF pathway inclines with myeloma disease progression. Amuvatinib, a small molecule MET kinase inhibitor, is effective in inducing growth inhibition and cell death in myeloma cell lines as well as primary malignant plasma cells. These cytostatic and cytotoxic effects were associated with an impact on MET/HGF pathway.
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Affiliation(s)
- Cornel Joseph Phillip
- Departments of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas, USA
| | - Shadia Zaman
- Departments of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Shujun Shentu
- Departments of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Kumudha Balakrishnan
- Departments of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas, USA
| | - Jiexin Zhang
- Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Veera Baladandayuthapani
- Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas, USA
| | | | | | - Michael Wang
- Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Christine Marie Stellrecht
- Departments of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas, USA
| | - Varsha Gandhi
- Departments of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center, Houston, Texas, USA
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Kalantzaki K, Bei ES, Exarchos KP, Zervakis M, Fotiadis DI, Garofalakis M. Identification of altered MET network in oral cancer progression based on nonparametric network design. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:575-8. [PMID: 24109752 DOI: 10.1109/embc.2013.6609565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Oral cancer is characterized by multiple genetic events such as alterations of a number of oncogenes and tumour suppressor genes. The aim of this study is to identify genes and their functional interactions that may play a crucial role on a specific disease-state, especially during oral cancer progression. We examine gene interaction networks on blood genomic data, obtained from twenty three oral cancer patients at four different time stages. We generate the gene-gene networks from sparse experimental temporal data using two methods, Partial Correlations and Kernel Density Estimation, in order to capture genetic interactions. The network study reveals an altered MET (hepatocyte growth factor receptor) network during oral cancer progression, which is further analyzed in relation to other studies.
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Nicastro HL, Firestone GL, Bjeldanes LF. 3,3'-diindolylmethane rapidly and selectively inhibits hepatocyte growth factor/c-Met signaling in breast cancer cells. J Nutr Biochem 2013; 24:1882-8. [PMID: 23968581 DOI: 10.1016/j.jnutbio.2013.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 01/31/2013] [Accepted: 05/04/2013] [Indexed: 10/26/2022]
Abstract
3,3'-Diindolylmethane (DIM), an indole derivative from vegetables of the Brassica genus, has antiproliferative activity in breast cancer cells. Part of this activity is thought to be due to DIM inhibition of Akt signaling, but an upstream mechanism of DIM-induced Akt inhibition has not been described. The goals of this study were to investigate the kinetics of inhibition of Akt by physiologically relevant concentrations of DIM and to identify an upstream factor that mediates this effect. Here we report that DIM (5-25 μM) inhibited Akt activation from 30 min to 24h in tumorigenic MDA-MB-231 cells but did not inhibit Akt activation in non-tumorigenic preneoplastic MCF10AT cells. DIM inhibited hepatocyte growth factor (HGF)-induced Akt activation by up to 46%, cell migration by 66% and cell proliferation by up to 54%, but did not inhibit induction of Akt by epidermal growth factor or insulin-like growth factor-1. DIM decreased phosphorylation of the HGF receptor, c-Met, at tyrosines 1234 and 1235, indicating decreased activation of the receptor. This decrease was reversed by pretreatment with inhibitors of p38 or calcineurin. Our results demonstrate the important role of HGF and c-Met in DIM's anti-proliferative effect on breast cancer cells and suggest that DIM could have preventive or clinical value as an inhibitor of c-Met signaling.
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Affiliation(s)
- Holly L Nicastro
- Department of Nutritional Science & Toxicology, University of California Berkeley, Berkeley, CA 94720-3104.
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29
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Design, synthesis and antitumour activity of bisquinoline derivatives connected by 4-oxy-3-fluoroaniline moiety. Eur J Med Chem 2013; 64:62-73. [DOI: 10.1016/j.ejmech.2013.04.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/31/2013] [Accepted: 04/01/2013] [Indexed: 11/18/2022]
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Abstract
Tumour progression requires the activation of a tumour and stromal cell-driven angiogenic programme, and the targeting of this process demonstrates an impact on tumour growth and progression. The results of preclinical studies have demonstrated a proinvasive/metastatic effect of antiangiogenic treatments with recent evidence supporting a contribution of the stroma to tumour aggressiveness and the short-term effects of antivascular endothelial growth factor therapy. Furthermore, hypoxia-dependent and -independent factors are considered as driving forces for tumour cell escape by altering both the tumour cells themselves and the stroma. This tumour-stromal cell alliance should be taken into consideration for the development of innovative therapeutic options targeting both tumour components to improve clinical benefits for cancer patients.
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Affiliation(s)
- L Moserle
- Tumor Angiogenesis Group, Catalan Institute of Oncology - IDIBELL, Spain
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31
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Lee JM, Kim B, Lee SB, Jeong Y, Oh YM, Song YJ, Jung S, Choi J, Lee S, Cheong KH, Kim DU, Park HW, Han YK, Kim GW, Choi H, Song PH, Kim KA. Cbl-independent degradation of Met: ways to avoid agonism of bivalent Met-targeting antibody. Oncogene 2012. [DOI: 10.1038/onc.2012.551] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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32
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Discovery of novel 2-aminopyridine-3-carboxamides as c-Met kinase inhibitors. Bioorg Med Chem 2012; 20:5169-80. [DOI: 10.1016/j.bmc.2012.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2012] [Revised: 07/03/2012] [Accepted: 07/04/2012] [Indexed: 12/21/2022]
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Hu W, Hirakawa B, Jessen B, Lee M, Aguirre S. A tyrosine kinase inhibitor-induced myocardial degeneration in rats through off-target phosphodiesterase inhibition. J Appl Toxicol 2012; 32:1008-20. [PMID: 22936366 DOI: 10.1002/jat.2801] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 06/26/2012] [Accepted: 06/27/2012] [Indexed: 11/08/2022]
Abstract
PF-04254644 is a selective kinase inhibitor of mesenchymal epithelial transition factor/hepatocyte growth factor receptor with known off-target inhibitory activity against the phosphodiesterase (PDE) family. Rats given repeated oral doses of PF-04254644 developed a mild to moderate myocardial degeneration accompanied by sustained increase in heart rate and contractility. Investigative studies were conducted to delineate the mechanisms of toxicity. Microarray analysis of Sprague-Dawley rat hearts in a 6 day repeat dose study with PF-04254644 or milrinone, a selective PDE3 inhibitor, revealed similar perturbation of the cyclic adenosine monophosphate (c-AMP) pathway. PDE inhibition and activation of c-AMP were further substantiated using PDE3B immunofluorescence staining and through a c-AMP response element reporter gene assay. The intracellular calcium and oxidative stress signaling pathways were more perturbed by treatment with PF-04254644 than milrinone. The rat cardiomyocytes calcium assay found a dose-dependent increase in intracellular calcium with PF-04254644 treatment. These data suggest that cardiotoxicity of PF-04254644 was probably due to activation of c-AMP signaling, and possibly subsequent disruption of intracellular calcium and oxidative stress signaling pathways. The greater response with PF-04254644 as compared with milrinone in gene expression and micro- and ultrastructural changes is probably due to the broader panel of PDEs inhibition.
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Affiliation(s)
- Wenyue Hu
- Pfizer Inc, Drug Safety Research and Development, La Jolla Laboratories, 10646 Science Center Drive, San Diego, CA 92121, USA.
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de Cremoux P, Robert J. [Cell signalling and cancer: characterisation of therapeutic targets]. ACTA ACUST UNITED AC 2012; 60:217-22. [PMID: 22728008 DOI: 10.1016/j.patbio.2012.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 04/25/2012] [Indexed: 11/30/2022]
Abstract
Cellular communication is required for the life of pluricellular organisms. The informations exchanged between cells belong to six major types of order to be executed, opposite each other: proliferate or differentiate; remain attached or migrate; survive or die. The cancer cell is genetically unstable, able to explore all the functions encoded by the genome and to consider every proliferative or migratory advantage for selecting it and transmit it to its descent. All the signalling pathways involved in proliferation or differentiation, in adhesion and migration, in survival and death may be altered by oncogenic alterations. These alterations are precisely those which can be targeted for therapy: from this observation was forged the concept of targeted therapy. We present here some examples of therapeutic targeting at the level of a major proliferation pathway by showing how it was possible to identify and characterise relevant targets, invent original new therapeutic tools and decipher the mechanisms of resistance which occur and hinder the success of targeted therapies. This example is the proliferation signalling pathway which starts from the activation of tyrosine kinase receptors by cognate growth factors and ends by the activation of transcription factors which trigger the transcription of the genes required for DNA replication, after undergoing through numerous intermediate molecules constituting the MAP kinase pathway: RAS, RAF, MEK and ERK.
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Affiliation(s)
- P de Cremoux
- Université Paris-Diderot, hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75010 Paris, France
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35
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Signal transduction pathway analysis in fibromatosis: receptor and nonreceptor tyrosine kinases. Hum Pathol 2012; 43:1711-8. [PMID: 22520949 DOI: 10.1016/j.humpath.2011.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 12/22/2011] [Accepted: 12/23/2011] [Indexed: 01/15/2023]
Abstract
Despite reports of receptor tyrosine kinase activation in desmoid-type fibromatosis, therapeutic benefits of kinase inhibitor therapy are unpredictable. Variability in signal transduction or cellular kinases heretofore unevaluated in desmoid tumors may be responsible for these inconsistent responses. In either case, a better understanding of growth regulatory signaling pathways is necessary to assess the theoretical potential of inhibitor therapy. Immunohistochemical analysis of tyrosine kinases and activated isoforms of downstream signal transduction proteins was performed on a tissue microarray containing 27 cases of desmoid-type fibromatosis and 14 samples of scar; 6 whole sections of normal fibrous tissue were studied for comparison. Platelet-derived growth factor receptor, β type, and focal adhesion kinase 1 were expressed in all desmoid tumors and healing scars but only 80% and 50% of nonproliferative fibrous tissue samples, respectively. Hepatocyte growth factor receptor was detected in 89% of desmoids and all scars tested, but not in any of the fibrous tissue samples. Epidermal growth factor receptor was detected in only 12% of desmoids and not in scar or fibrous tissue. Mast/stem cell growth factor receptor, receptor tyrosine-protein kinase erbB-2, and phosphorylated insulin-like growth factor 1 receptor/insulin receptor were negative in all study cases. Variable levels of phosphorylated downstream signal transduction molecules RAC-α/β/γ serine/threonine-protein kinase, mitogen-activated protein kinase, and signal transducer and activator of transcription-3 were observed in desmoids (58%, 62%, and 67%), scar tissues (100%, 86%, and 86%), and fibrous tissue (33%, 17%, and 17%). These results indicate that tyrosine kinase signaling is active in both fibromatosis and healing scar, but not in most nonproliferating fibrous tissues. Although platelet-derived growth factor receptor, β type, is expressed ubiquitously in desmoids, the kinases driving cell proliferation in desmoids remain unresolved.
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Impact of the small molecule Met inhibitor BMS-777607 on the metastatic process in a rodent tumor model with constitutive c-Met activation. Clin Exp Metastasis 2012; 29:253-61. [DOI: 10.1007/s10585-011-9447-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 12/22/2011] [Indexed: 01/22/2023]
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Ayoub NM, Bachawal SV, Sylvester PW. γ-Tocotrienol inhibits HGF-dependent mitogenesis and Met activation in highly malignant mammary tumour cells. Cell Prolif 2011; 44:516-26. [PMID: 21973114 DOI: 10.1111/j.1365-2184.2011.00785.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Aberrant Met signalling is associated with aggressive cancer cell phenotypes. γ-tocotrienol displays potent anti-cancer activity that is associated with suppression of HER/ErbB receptor signalling. Experiments were conducted to investigate the effects of γ-tocotrienol treatment on HGF-dependent +SA mammary tumour cell proliferation, upon Met activation. MATERIALS AND METHODS The +SA cells were maintained in serum-free defined media containing 10 ng/ml HGF as the mitogen. Cell viability was determined using the MTT assay, western blot analysis was used to measure protein expression, and Met expression and activation were determined using immunofluorescent staining. RESULTS AND CONCLUSIONS Treatment with γ-tocotrienol or Met inhibitor, SU11274, significantly inhibited HGF-dependent +SA cell replication in a dose-responsive manner. Treatment with 4 μmγ-tocotrienol reduced both total Met levels and HGF-induced Met autophosphorylation. In contrast, similar treatment with 5.5 μm SU11274 inhibited HGF-induced Met autophosphorylation, but had no effect on total Met levels. Combined treatment with subeffective doses of γ-tocotrienol (2 μm) and SU11274 (3 μm) resulted in significant inhibition of +SA cell expansion compared to treatment with individual agents alone. These findings show, for the first time, the inhibitory effects of γ-tocotrienol on Met expression and activation, and strongly suggest that γ-tocotrienol treatment may provide significant health benefits in prevention and/or treatment of breast cancer, in women with deregulated HGF/Met signalling.
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Affiliation(s)
- N M Ayoub
- College of Pharmacy, University of Louisiana at Monroe, USA
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Grzelakowska-Sztabert B, Dudkowska M. Paradoxical action of growth factors: antiproliferative and proapoptotic signaling by HGF/c-MET. Growth Factors 2011; 29:105-18. [PMID: 21631393 DOI: 10.3109/08977194.2011.585609] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Hepatocyte growth factor (HGF)/mesenchymal-epithelial transition factor (c-MET) signaling is usually associated with the promotion of cellular growth and often with progression of tumors. Nevertheless, under certain conditions HGF can also act as an antiproliferative and proapoptotic factor and can sensitize various cancer cells, treated with anticancer drugs, to apoptosis. Not only HGF but also its various truncated forms as well as intracellular fragments of its membrane receptor, c-MET, may act as antiproliferative and proapoptotic factors toward various cells. This review focuses on different mechanisms responsible for such paradoxical action of the known typical growth factor. It also points toward the possibilities of usage of this information in anticancer therapy.
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40
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Kurzrock R, Sherman SI, Ball DW, Forastiere AA, Cohen RB, Mehra R, Pfister DG, Cohen EEW, Janisch L, Nauling F, Hong DS, Ng CS, Ye L, Gagel RF, Frye J, Müller T, Ratain MJ, Salgia R. Activity of XL184 (Cabozantinib), an oral tyrosine kinase inhibitor, in patients with medullary thyroid cancer. J Clin Oncol 2011; 29:2660-6. [PMID: 21606412 PMCID: PMC3646303 DOI: 10.1200/jco.2010.32.4145] [Citation(s) in RCA: 422] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 01/06/2011] [Indexed: 11/20/2022] Open
Abstract
PURPOSE XL184 (cabozantinib) is a potent inhibitor of MET, vascular endothelial growth factor receptor 2 (VEGFR2), and RET, with robust antiangiogenic, antitumor, and anti-invasive effects in preclinical models. Early observations of clinical benefit in a phase I study of cabozantinib, which included patients with medullary thyroid cancer (MTC), led to expansion of an MTC-enriched cohort, which is the focus of this article. PATIENTS AND METHODS A phase I dose-escalation study of oral cabozantinib was conducted in patients with advanced solid tumors. Primary end points included evaluation of safety, pharmacokinetics, and maximum-tolerated dose (MTD) determination. Additional end points included RECIST (Response Evaluation Criteria in Solid Tumors) response, pharmacodynamics, RET mutational status, and biomarker analyses. RESULTS Eighty-five patients were enrolled, including 37 with MTC. The MTD was 175 mg daily. Dose-limiting toxicities were grade 3 palmar plantar erythrodysesthesia (PPE), mucositis, and AST, ALT, and lipase elevations and grade 2 mucositis that resulted in dose interruption and reduction. Ten (29%) of 35 patients with MTC with measurable disease had a confirmed partial response. Overall, 18 patients experienced tumor shrinkage of 30% or more, including 17 (49%) of 35 patients with MTC with measurable disease. Additionally, 15 (41%) of 37 patients with MTC had stable disease (SD) for at least 6 months, resulting in SD for 6 months or longer or confirmed partial response in 68% of patients with MTC. CONCLUSION Cabozantinib has an acceptable safety profile and is active in MTC. Cabozantinib may provide clinical benefit by simultaneously targeting multiple pathways of importance in MTC, including MET, VEGFR2, and RET. A global phase III pivotal study in MTC is ongoing (ClinicalTrials.gov number NCT00215605).
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Affiliation(s)
- Razelle Kurzrock
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Boltz A, Piater B, Toleikis L, Guenther R, Kolmar H, Hock B. Bi-specific aptamers mediating tumor cell lysis. J Biol Chem 2011; 286:21896-905. [PMID: 21531729 DOI: 10.1074/jbc.m111.238261] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Antibody-dependent cellular cytotoxicity plays a pivotal role in antibody-based tumor therapies and is based on the recruitment of natural killer cells to antibody-bound tumor cells via binding of the Fcγ receptor III (CD16). Here we describe the generation of chimeric DNA aptamers that simultaneously bind to CD16α and c-Met, a receptor that is overexpressed in many tumors. By application of the systematic evolution of ligands by exponential enrichment (SELEX) method, CD16α specific DNA aptamers were isolated that bound with high specificity and affinity (91 pm-195 nm) to their respective recombinant and cellularly expressed target proteins. Two optimized CD16α specific aptamers were coupled to each of two c-Met specific aptamers using different linkers. Bi-specific aptamers retained suitable binding properties and displayed simultaneous binding to both antigens. Moreover, they mediated cellular cytotoxicity dependent on aptamer and effector cell concentration. Displacement of a bi-specific aptamer from CD16α by competing antibody 3G8 reduced cytotoxicity and confirmed the proposed mode of action. These results represent the first gain of a tumor-effective function of two distinct oligonucleotides by linkage into a bi-specific aptamer mediating cellular cytotoxicity.
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Affiliation(s)
- Achim Boltz
- Clemens-Schoepf-Institute for Organic Chemistry and Biochemistry, Technical University Darmstadt, D-64289 Darmstadt, Germany
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Tailoring tyrosine kinase inhibitors to fit the lung cancer genome. Transl Oncol 2011; 4:59-70. [PMID: 21461169 DOI: 10.1593/tlo.10241] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 10/20/2010] [Accepted: 11/01/2010] [Indexed: 12/19/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) have been in use as cancer therapeutics for nearly a decade, and their utility in targeting specific malignancies with defined genetic lesions has proven to be remarkably effective. Recent efforts to characterize the spectrum of genetic lesions found in non-small cell lung carcinoma (NSCLC) have provided important insights into the molecular basis of this disease and have also revealed a wide array of tyrosine kinases that might be effectively targeted for rationally designed therapies. The findings of these studies, however, also provide a cautionary tale about the limitations of single-agent therapies, which fail to account for the genetic heterogeneity and pathway redundancy that characterize advanced NSCLC. Emergence of drug resistance mechanisms to specific TKIs, such as gefitinib and erlotinib, suggests that more sophisticated chemotherapeutic paradigms that target multiple pathways at the same time will be required to effectively treat this disease.
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Duan Z, Choy E, Nielsen GP, Rosenberg A, Iafrate J, Yang C, Schwab J, Mankin H, Xavier R, Hornicek FJ. Differential expression of microRNA (miRNA) in chordoma reveals a role for miRNA-1 in Met expression. J Orthop Res 2010; 28:746-52. [PMID: 20041488 DOI: 10.1002/jor.21055] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Emerging evidence suggests that microRNA (miRNA) expression signatures in cancer may have important diagnostic, prognostic, and therapeutic value, but there is no data on miRNA expression in chordoma. The purpose of this study was to identify the role of miRNAs in human chordoma. We analyzed miRNA expression in chordoma-derived cell lines and chordoma tissue by using miRNA microarray technology with unsupervised hierarchical clustering analysis. The relative expression levels of these miRNAs were confirmed by real-time quantitative RT-PCR and Northern blot analysis. To characterize the potential role of miRNA-1, miRNA-1 was stably transfected into a chordoma cell line, UCH1. The expression of miRNA-1 targeted gene Met in chordoma tissues was also studied. We observe that human chordoma tissues and cell lines can be distinguished from normal muscle tissue by comparing miRNA expression profiles. Several miRNAs were differentially expressed in chordoma cell lines compared to controls, and similar expression patterns were found in primary chordoma tissues. Importantly, we were able to show for the first time, to our knowledge, that expression of miRNA-1 and miRNA-206, two miRNAs implicated in a number of other cancer types, were markedly decreased in both chordoma tissues and cell lines. When chordoma cell lines were transfected with miRNA-1, downregulation of known miRNA-1 targets was observed. These targets included Met and HDAC4-two genes that were observed to be overexpressed in chordoma. Our results demonstrate that some miRNAs are differentially expressed in chordoma and, in particular, miRNA-1 may have a functional effect on chordoma tumor pathogenesis.
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Affiliation(s)
- Zhenfeng Duan
- Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.
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Cardiovascular Effects in Rats following Exposure to a Receptor Tyrosine Kinase Inhibitor. Toxicol Pathol 2010; 38:416-28. [DOI: 10.1177/0192623310364027] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The receptor tyrosine kinase receptor (RTK) signaling pathway, mesenchymal-epithelial transition factor (c-Met)/hepatocyte growth factor receptor (HGFR), has been implicated in oncogenesis and is a target of interest in cancer therapy. PF-04254644 is a potent and selective inhibitor of c-Met/HGFR. Wide ligand binding profiling of PF-04254644 revealed a potentially significant interaction with phosphodiesterase (PDE) 3, and follow-up PDE enzyme activity assays confirmed PF-04254644 as a potent inhibitor of PDE3 as well as other PDEs (1, 2, 5, 10, and 11). Clinical observations, laboratory, and echocardiography parameters were recorded in Sprague-Dawley (SD) rats that received PF-04254644 oral dosing for up to seven consecutive days. Toxicological evaluations revealed myocardial degeneration as an adverse event at all tested doses. Echocardiographic evaluations revealed an increase in heart rate (HR) and contractility after the first dose with PF-04254644 and myocardial fibrosis correlated with decreased cardiac function after repeat dosing. A study in telemetry-instrumented rats substantiated that PF-04254644 induced a sustained increased HR and decreased contractility after six days of treatment. Data suggest that the decreased cardiac function and cardiotoxicity are likely due to inhibition of multiple PDEs by PF-04254644.
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