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Chang Q, Huang K, Zou L, Li A, Ye Z, Lin Q, Gu Y. Synthesis and Evaluation of a Novel c-Met-Targeting Cyclic Peptide as a Potential Diagnostic Agent for Colorectal Cancer. Mol Pharm 2024; 21:3613-3622. [PMID: 38853512 DOI: 10.1021/acs.molpharmaceut.4c00330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
The mesenchymal-epithelial transition factor (c-Met) is a receptor tyrosine kinase linked to the proliferation, survival, invasion, and metastasis of several types of cancers, including colorectal cancer (CRC), particularly when aberrantly activated. Our study strategically designs peptides derived from interactions between c-Met and the antibody Onartuzumab. By utilizing a cyclic strategy, we achieved significantly enhanced peptide stability and affinity. Our in vitro assessments confirmed that the cyclic peptide HYNIC-cycOn exhibited a higher affinity (KD = 83.5 nM) and greater specificity compared with its linear counterpart. Through in vivo experiments, [99mTc]Tc-HYNIC-cycOn displayed exceptional tumor-targeting capabilities and minimal absorption in nontumor cells, as confirmed by single-photon emission computed tomography. Notably, the ratios of tumor to muscle and tumor to intestine, 1 h postinjection, were 4.78 ± 0.86 and 3.24 ± 0.47, respectively. Comparable ratios were observed in orthotopic CRC models, recording 4.94 ± 0.32 and 3.88 ± 0.41, respectively. In summary, [99mTc]Tc-HYNIC-cycOn shows substantial promise as a candidate for clinical applications. We show that [99mTc]Tc-HYNIC-cycOn can effectively target and visualize c-Met-expressing tumors in vivo, providing a promising approach for enhancing diagnostic accuracy when detecting c-Met in CRC.
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Affiliation(s)
- Qi Chang
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Keshuai Huang
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Lenan Zou
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Ao Li
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Zhuoyi Ye
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Qiao Lin
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
| | - Yueqing Gu
- State Key Laboratory of Natural Medicine, Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China
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2
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Chaudhary SP, Kwak EL, Hwang KL, Lennerz JK, Corcoran RB, Heist RS, Russo AL, Parikh A, Borger DR, Blaszkowsky LS, Faris JE, Murphy JE, Azzoli CG, Roeland EJ, Goyal L, Allen J, Mullen JT, Ryan DP, Iafrate AJ, Klempner SJ, Clark JW, Hong TS. Revisiting MET: Clinical Characteristics and Treatment Outcomes of Patients with Locally Advanced or Metastatic, MET-Amplified Esophagogastric Cancers. Oncologist 2020; 25:e1691-e1700. [PMID: 32820577 DOI: 10.1634/theoncologist.2020-0274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/16/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Metastatic esophagogastric cancers (EGCs) have a poor prognosis with an approximately 5% 5-year survival. Additional treatment approaches are needed. c-MET gene-amplified tumors are an uncommon but potentially targetable subset of EGC. Clinical characteristics and outcomes were evaluated in patients with MET-amplified EGC and compared with those without MET amplification to facilitate identification of these patients and possible treatment approaches. PATIENTS AND METHODS Patients with locally advanced or metastatic MET-amplified EGC at Massachusetts General Hospital (MGH) were identified using fluorescent in situ hybridization analysis, with a gene-to-control ratio of ≥2.2 defined as positive. Non-MET-amplified patients identified during the same time period who had undergone tumor genotyping and treatment at MGH were evaluated as a comparison group. RESULTS We identified 233 patients evaluated for MET amplification from 2002 to 2019. MET amplification was seen in 28 (12%) patients versus 205 (88%) patients without amplification. Most MET-amplified tumors occurred in either the distal esophagus (n = 9; 32%) or gastroesophageal junction (n = 10; 36%). Of MET-amplified patients, 16 (57%) had a TP53 mutation, 5(18%) had HER2 co-amplification, 2 (7.0%) had EGFR co-amplification, and 1 (3.5%) had FGFR2 co-amplification. MET-amplified tumors more frequently had poorly differentiated histology (19/28, 68.0% vs. 66/205, 32%; p = .02). Progression-free survival to initial treatment was substantially shorter for all MET-amplified patients (5.6 vs. 8.8 months, p = .026) and for those with metastatic disease at presentation (4.0 vs. 7.6 months, p = .01). Overall, patients with MET amplification had shorter overall survival (19.3 vs. 24.6 months, p = .049). No difference in survival was seen between low MET-amplified tumors (≥2.2 and <25 MET copy number) compared with highly amplified tumors (≥25 MET copy number). CONCLUSION MET-amplified EGC represents a distinct clinical entity characterized by rapid progression and short survival. Ideally, the identification of these patients will provide opportunities to participate in clinical trials in an attempt to improve outcomes. IMPLICATIONS FOR PRACTICE This article describes 233 patients who received MET amplification testing and reports (a) a positivity rate of 12%, similar to the rate of HER2 positivity in this data set; (b) the clinical characteristics of poorly differentiated tumors and nodal metastases; and (c) markedly shorter progression-free survival and overall survival in MET-amplified tumors. Favorable outcomes are reported for patients treated with MET inhibitors. Given the lack of published data in MET-amplified esophagogastric cancers and the urgent clinical importance of identifying patients with MET amplification for MET-directed therapy, this large series is a valuable addition to the literature and will have an impact on future practice.
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Affiliation(s)
- Surendra Pal Chaudhary
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Eunice L Kwak
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Katie L Hwang
- Department of Pathology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jochen K Lennerz
- Department of Radiation Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Ryan B Corcoran
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Rebecca S Heist
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Andrea L Russo
- Department of Surgery, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Aparna Parikh
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Darrell R Borger
- Department of Radiation Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Lawrence S Blaszkowsky
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jason E Faris
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center and Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA
| | - Janet E Murphy
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher G Azzoli
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Eric J Roeland
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Lipika Goyal
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jill Allen
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - John T Mullen
- Department of Surgery, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - David P Ryan
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - A John Iafrate
- Department of Radiation Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Samuel J Klempner
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Jeffrey W Clark
- Department of Medical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Theodore S Hong
- Department of Radiation Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, USA
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3
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Parizadeh SM, Jafarzadeh-Esfehani R, Fazilat-Panah D, Hassanian SM, Shahidsales S, Khazaei M, Parizadeh SMR, Ghayour-Mobarhan M, Ferns GA, Avan A. The potential therapeutic and prognostic impacts of the c-MET/HGF signaling pathway in colorectal cancer. IUBMB Life 2019; 71:802-811. [PMID: 31116909 DOI: 10.1002/iub.2063] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 04/10/2019] [Indexed: 12/22/2022]
Abstract
Colorectal cancer (CRC) is the third most common cancer and a common cause of cancer-related mortality globally. In spite of the improvements in the early diagnosis of CRC, approximately one-third of patients develop metastasis and then have a very poor survival rate. The mesenchymal-epithelial transition factor (c-MET) is a tyrosine kinase cell surface receptor activated by hepatocyte growth factor (HGF). Activation of c-MET/HGF signaling pathway regulates a variety of biological processes including cell motility, cell proliferation, angiogenesis, the epithelial-to-mesenchymal transition, and the development and progression of cancer cells. Recent studies have suggested that the c-MET/HGF signaling pathway is involved in the carcinogenesis of CRC. In this review, we summarize the main findings of recent studies investigating the role of c-MET/HGF signaling pathway in CRC and the potential of the c-MET/HGF signaling pathways in the diagnosis and treatment of CRC. © 2019 IUBMB Life, 2019.
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Affiliation(s)
| | - Reza Jafarzadeh-Esfehani
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Seyed Mahdi Hassanian
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Majid Khazaei
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Majid Ghayour-Mobarhan
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton and Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex, UK
| | - Amir Avan
- Metabolic syndrome Research center, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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4
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Duan L, Yang W, Wang X, Zhou W, Zhang Y, Liu J, Zhang H, Zhao Q, Hong L, Fan D. Advances in prognostic markers for colorectal cancer. Expert Rev Mol Diagn 2019; 19:313-324. [PMID: 30907673 DOI: 10.1080/14737159.2019.1592679] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Lili Duan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Wanli Yang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Xiaoqian Wang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Wei Zhou
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Yujie Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Jinqiang Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Hongwei Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Qingchuan Zhao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Liu Hong
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
| | - Daiming Fan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an, China
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Sakuma K, Sasaki E, Kimura K, Komori K, Shimizu Y, Yatabe Y, Aoki M. HNRNPLL, a newly identified colorectal cancer metastasis suppressor, modulates alternative splicing of CD44 during epithelial-mesenchymal transition. Gut 2018; 67:1103-1111. [PMID: 28360095 DOI: 10.1136/gutjnl-2016-312927] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 03/02/2017] [Accepted: 03/11/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Despite the recent advances in treatment of colon cancer, the prognosis is unfavourable for patients with distant metastases. The aim of this study was to identify targets for prevention and/or therapy of colon cancer metastasis. DESIGN CMT93 cells, a murine rectal cancer cell line with poor metastasising activity, were transduced with lentiviral shRNA library and transplanted into the rectum of syngeneic C57BL/6 mice. Genomic DNA was collected from metastatic lesions, and the integrated shRNA were retrieved by PCR for sequencing, followed by identification of the candidate genes targeted by the shRNA. RESULTS The genome-wide shRNA library screen identified Hnrnpll (heterogeneous nuclear ribonucleoprotein L-like) encoding a pre-mRNA splicing factor as a candidate metastasis suppressor gene. Knockdown of Hnrnpll enhanced matrigel invasion activity of colon cancer cells in vitro, as well as their metastatic ability in vivo. An RNA-immunoprecipitation analysis showed Hnrnpll-binding to Cd44 pre-mRNAs, and the level of Cd44 variable exon 6 (Cd44v6), a poor prognosis marker of colorectal cancer, was increased by knocking down Hnrnpll. A neutralising Cd44v6 antibody suppressed the matrigel invasion ability induced by Hnrnpll knockdown. HNRNPLL expression was downregulated when colon cancer cells were induced to undergo epithelial-mesenchymal transition (EMT). Immunohistochemistry of clinical samples indicated that colorectal cancer cells with low E-cadherin expression at the invasion front exhibited decreased HNRNPLL expression. CONCLUSIONS HNRNPLL is a novel metastasis suppressor of colorectal cancer, and modulates alternative splicing of CD44 during EMT.
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Affiliation(s)
- Keiichiro Sakuma
- Division of Molecular Pathology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Eiichi Sasaki
- Departments of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Kenya Kimura
- Departments of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Koji Komori
- Departments of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Yasuhiro Shimizu
- Departments of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Yasushi Yatabe
- Departments of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Masahiro Aoki
- Division of Molecular Pathology, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Cancer Genetics, Program in Function Construction Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Differential miRNA expression profiling reveals miR-205-3p to be a potential radiosensitizer for low- dose ionizing radiation in DLD-1 cells. Oncotarget 2018; 9:26387-26405. [PMID: 29899866 PMCID: PMC5995186 DOI: 10.18632/oncotarget.25405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 04/28/2018] [Indexed: 12/12/2022] Open
Abstract
Enhanced radiosensitivity at low doses of ionizing radiation (IR) (0.2 to 0.6 Gy) has been reported in several cell lines. This phenomenon, known as low doses hyper-radiosensitivity (LDHRS), appears as an opportunity to decrease toxicity of radiotherapy and to enhance the effects of chemotherapy. However, the effect of low single doses IR on cell death is subtle and the mechanism underlying LDHRS has not been clearly explained, limiting the utility of LDHRS for clinical applications. To understand the mechanisms responsible for cell death induced by low-dose IR, LDHRS was evaluated in DLD-1 human colorectal cancer cells and the expression of 80 microRNAs (miRNAs) was assessed by qPCR array. Our results show that DLD-1 cells display an early DNA damage response and apoptotic cell death when exposed to 0.6 Gy. miRNA expression profiling identified 3 over-expressed (miR-205-3p, miR-1 and miR-133b) and 2 down-regulated miRNAs (miR-122-5p, and miR-134-5p) upon exposure to 0.6 Gy. This miRNA profile differed from the one in cells exposed to high-dose IR (12 Gy), supporting a distinct low-dose radiation-induced cell death mechanism. Expression of a mimetic miR-205-3p, the most overexpressed miRNA in cells exposed to 0.6 Gy, induced apoptotic cell death and, more importantly, increased LDHRS in DLD-1 cells. Thus, we propose miR-205-3p as a potential radiosensitizer to low-dose IR.
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7
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Liu Y, Li Q, Zhu L. Expression of the Hepatocyte Growth Factor and C-Met in Colon Cancer: Correlation with Clinicopathological Features and Overall Survival. TUMORI JOURNAL 2018; 98:105-12. [DOI: 10.1177/030089161209800115] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aim and Background The hepatocyte growth factor (HGF)/c-Met signaling system has been implicated in the development and progression of colon cancer, but the relationship between the expression of HGF or c-MET and clinicopathologic features remains controversial. In the study, we analyzed the expression of HGF and c-Met in colon cancer and assessed the influence of the expression of this growth factor and its receptor on clinical and histological parameters and patient survival. Methods and Study Design We investigated the mRNA expression of HGF and c-Met with real-time PCR in 90 unselected colon carcinomas and the corresponding normal mucosa. Furthermore, HGF and c-Met protein expression was investigated with immunohistochemistry in all the samples. Results The mRNA and protein expression levels of HGF and c-Met were significantly higher in colon cancer than in matched normal mucosa. The protein level in most of the cases investigated was correlated with the mRNA level. Overexpression of HGF and c-Met, at both protein and mRNA levels, was correlated with depth of invasion, lymph node metastases and overall AJCC stage. According to univariate analysis, the mean survival time was shorter in the HGF-positive and c-Met-positive groups. Multivariate Cox analysis showed that high M stage and the expression of c-Met independently had a negative impact on overall survival. Conclusions The HGF/c-Met signaling pathway may be involved in the pathogenesis and progression of colon cancer. C-Met overexpression can be used as a useful parameter to evaluate the prognosis of colon cancer.
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Affiliation(s)
- Yao Liu
- Department of Surgery, Capital Institute of Pediatrics, Peking Union Medical College, Beijing
| | - Qiaoyan Li
- Transplant Center, Tianjin First Center Hospital, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Liwei Zhu
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
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8
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Kelso TWR, Porter DK, Amaral ML, Shokhirev MN, Benner C, Hargreaves DC. Chromatin accessibility underlies synthetic lethality of SWI/SNF subunits in ARID1A-mutant cancers. eLife 2017; 6:30506. [PMID: 28967863 PMCID: PMC5643100 DOI: 10.7554/elife.30506] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 09/28/2017] [Indexed: 02/06/2023] Open
Abstract
ARID1A, a subunit of the SWI/SNF chromatin remodeling complex, is frequently mutated in cancer. Deficiency in its homolog ARID1B is synthetically lethal with ARID1A mutation. However, the functional relationship between these homologs has not been explored. Here, we use ATAC-seq, genome-wide histone modification mapping, and expression analysis to examine colorectal cancer cells lacking one or both ARID proteins. We find that ARID1A has a dominant role in maintaining chromatin accessibility at enhancers, while the contribution of ARID1B is evident only in the context of ARID1A mutation. Changes in accessibility are predictive of changes in expression and correlate with loss of H3K4me and H3K27ac marks, nucleosome spacing, and transcription factor binding, particularly at growth pathway genes including MET. We find that ARID1B knockdown in ARID1A mutant ovarian cancer cells causes similar loss of enhancer architecture, suggesting that this is a conserved function underlying the synthetic lethality between ARID1A and ARID1B.
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Affiliation(s)
- Timothy W R Kelso
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, California, United States
| | - Devin K Porter
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, California, United States
| | - Maria Luisa Amaral
- The Razavi Newman Integrative Genomics and Bioinformatics Core Facility, Salk Institute for Biological Studies, California, United States
| | - Maxim N Shokhirev
- The Razavi Newman Integrative Genomics and Bioinformatics Core Facility, Salk Institute for Biological Studies, California, United States
| | - Christopher Benner
- Department of Medicine, University of California San Diego, California, United States
| | - Diana C Hargreaves
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, California, United States
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9
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Li H, Chen YX, Wen JG, Zhou HH. Metastasis-associated in colon cancer 1: A promising biomarker for the metastasis and prognosis of colorectal cancer. Oncol Lett 2017; 14:3899-3908. [PMID: 28943898 PMCID: PMC5605967 DOI: 10.3892/ol.2017.6670] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 01/10/2017] [Indexed: 12/26/2022] Open
Abstract
Colorectal cancer (CRC) is the fourth most frequent type of malignancy in the world. Metastasis accounts for >90% mortalities in patients with CRC. The metastasis-associated in colon cancer 1 (MACC1) gene has been identified as a novel biomarker for the prediction of metastasis and disease prognosis, particularly for patients with early-stage disease. Previous clinical studies demonstrated that MACC1 expression and polymorphisms in CRC tissues were indicators of metastasis, and that circulating transcripts in plasma were also significantly associated with the survival of patients. The present review describes the use of MACC1 beyond its utility in the clinic. By elucidating the upstream and downstream signal pathways of MACC1, the well-known mechanisms of MACC1-mediated cell proliferation, invasion, migration and epithelial-mesenchymal transition (EMT) are summarized, as well as the potential signaling pathways. Furthermore, the underlying mechanisms by which the overexpression of MACC1 causes cisplatin resistance are emphasized.
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Affiliation(s)
- He Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, Hunan 410078, P.R. China
| | - Yi-Xin Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, Hunan 410078, P.R. China
| | - Jia-Gen Wen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, Hunan 410078, P.R. China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, Hunan 410078, P.R. China.,Hunan Province Cooperation Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan 421001, P.R. China
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10
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Safaie Qamsari E, Safaei Ghaderi S, Zarei B, Dorostkar R, Bagheri S, Jadidi-Niaragh F, Somi MH, Yousefi M. The c-Met receptor: Implication for targeted therapies in colorectal cancer. Tumour Biol 2017; 39:1010428317699118. [DOI: 10.1177/1010428317699118] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
c-Met (mesenchymal–epithelial transition factor) is a tyrosine kinase receptor activated by hepatocyte growth factor and regulates multiple biological processes, such as cell scattering, survival, and proliferation. Aberrant c-Met signaling has been implicated in a variety of cancer types, including colorectal cancer. c-Met is genetically altered through various mechanisms that is associated with colorectal cancer progression and metastasis. Especially, in colorectal cancer, preclinical evidence for the aberrant activation of the c-Met signaling exists. Accordingly, molecular targeting of c-Met receptor could be a promising strategy, in the treatment of colorectal cancer patients. Recently, it was also shown that crosstalk between c-Met and other cell surface receptors attributes to tumorigenesis and development of therapeutic resistance. Characterization of the molecular mechanisms through which c-Met crosstalks with other receptors in favor of tumor formation and progression remains to explore. This review will describe the mechanisms of aberrant c-Met signaling in colorectal cancer and discuss on additional roles for c-Met receptor through crosstalk with other tyrosine kinase receptors and cell surface proteins in colorectal cancer. Novel therapeutic approaches for c-Met pathway targeting will also be discussed.
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Affiliation(s)
- Elmira Safaie Qamsari
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Safaei Ghaderi
- Department of Biotechnology, Faculty of Advanced Science & Technology, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
- Hybridoma Laboratory, Immunology Department, Pasteur Institute of Iran, Tehran, Iran
| | - Bahareh Zarei
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Ruhollah Dorostkar
- Applied Virology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Salman Bagheri
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farhad Jadidi-Niaragh
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Somi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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11
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Qamsari ES, Sharifzadeh Z, Bagheri S, Riazi-Rad F, Younesi V, Abolhassani M, Ghaderi SS, Baradaran B, Somi MH, Yousefi M. Isolation and characterization of anti c-met single chain fragment variable (scFv) antibodies. J Immunotoxicol 2017; 14:23-30. [PMID: 28090795 DOI: 10.1080/1547691x.2016.1251512] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The receptor tyrosine kinase (RTK) Met is the cell surface receptor for hepatocyte growth factor (HGF) involved in invasive growth programs during embryogenesis and tumorgenesis. There is compelling evidence suggesting important roles for c-Met in colorectal cancer proliferation, migration, invasion, angiogenesis, and survival. Hence, a molecular inhibitor of an extracellular domain of c-Met receptor that blocks c-Met-cell surface interactions could be of great thera-peutic importance. In an attempt to develop molecular inhibitors of c-Met, single chain variable fragment (scFv) phage display libraries Tomlinson I + J against a specific synthetic oligopeptide from the extracellular domain of c-Met receptor were screened; selected scFv were then characterized using various immune techniques. Three c-Met specific scFv (ES1, ES2, and ES3) were selected following five rounds of panning procedures. The scFv showed specific binding to c-Met receptor, and significantly inhibited proliferation responses of a human colorectal carcinoma cell line (HCT-116). Moreover, anti- apoptotic effects of selected scFv antibodies on the HCT-116 cell line were also evaluated using Annexin V/PI assays. The results demonstrated rates of apoptotic cell death of 46.0, 25.5, and 37.8% among these cells were induced by use of ES1, ES2, and ES3, respectively. The results demonstrated ability to successfully isolate/char-acterize specific c-Met scFv that could ultimately have a great therapeutic potential in immuno-therapies against (colorectal) cancers.
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Affiliation(s)
- Elmira Safaie Qamsari
- a Immunology Research Center , Tabriz University of Medical Sciences , Tabriz , Iran.,b Department of Immunology , Tabriz University of Medical Sciences , Tabriz , Iran.,c Immunology Department, Hybridoma Laboratory , Pasteur Institute of Iran , Tehran , Iran
| | - Zahra Sharifzadeh
- c Immunology Department, Hybridoma Laboratory , Pasteur Institute of Iran , Tehran , Iran
| | - Salman Bagheri
- a Immunology Research Center , Tabriz University of Medical Sciences , Tabriz , Iran.,b Department of Immunology , Tabriz University of Medical Sciences , Tabriz , Iran.,c Immunology Department, Hybridoma Laboratory , Pasteur Institute of Iran , Tehran , Iran
| | - Farhad Riazi-Rad
- d Department of Immunology , Pasteur Institute of Iran , Tehran , Iran
| | - Vahid Younesi
- e Monoclonal Anti-body Research Center , Avicenna Research Institute , Tehran , Iran
| | - Mohsen Abolhassani
- c Immunology Department, Hybridoma Laboratory , Pasteur Institute of Iran , Tehran , Iran
| | - Sepideh Safaei Ghaderi
- f Department of Biotechnology, Pharmaceutical Sciences Branch , Islamic Azad University , Tehran , Iran
| | - Behzad Baradaran
- a Immunology Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohammad Hossein Somi
- g Liver and Gastrointestinal Diseases Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mehdi Yousefi
- g Liver and Gastrointestinal Diseases Research Center , Tabriz University of Medical Sciences , Tabriz , Iran
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Hwang DW, Bahng N, Ito K, Ha S, Kim MY, Lee E, Suga H, Lee DS. In vivo targeting of c-Met using a non-standard macrocyclic peptide in gastric carcinoma. Cancer Lett 2017; 385:144-149. [DOI: 10.1016/j.canlet.2016.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/20/2016] [Accepted: 10/24/2016] [Indexed: 10/20/2022]
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Bradley CA, Dunne PD, Bingham V, McQuaid S, Khawaja H, Craig S, James J, Moore WL, McArt DG, Lawler M, Dasgupta S, Johnston PG, Van Schaeybroeck S. Transcriptional upregulation of c-MET is associated with invasion and tumor budding in colorectal cancer. Oncotarget 2016; 7:78932-78945. [PMID: 27793046 PMCID: PMC5346688 DOI: 10.18632/oncotarget.12933] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/19/2016] [Indexed: 12/12/2022] Open
Abstract
c-MET and its ligand HGF are frequently overexpressed in colorectal cancer (CRC) and increased c-MET levels are found in CRC liver metastases. This study investigated the role of the HGF/c-MET axis in regulating migration/invasion in CRC, using pre-clinical models and clinical samples. Pre-clinically, we found marked upregulation of c-MET at both protein and mRNA levels in several invasive CRC cells. Down-regulation of c-MET using RNAi suppressed migration/invasion of parental and invasive CRC cells. Stimulation of CRC cells with rh-HGF or co-culture with HGF-expressing colonic myofibroblasts, resulted in significant increases in their migratory/invasive capacity. Importantly, HGF-induced c-MET activation promoted rapid downregulation of c-MET protein levels, while the MET transcript remained unaltered. Using RNA in situ hybridization (RNA ISH), we further showed that MET mRNA, but not protein levels, were significantly upregulated in tumor budding foci at the invasive front of a cohort of stage III CRC tumors (p < 0.001). Taken together, we show for the first time that transcriptional upregulation of MET is a key molecular event associated with CRC invasion and tumor budding. This data also indicates that RNA ISH, but not immunohistochemistry, provides a robust methodology to assess MET levels as a potential driving force of CRC tumor invasion and metastasis.
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Affiliation(s)
- Conor A. Bradley
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Philip D. Dunne
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Victoria Bingham
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Stephen McQuaid
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
- Tissue Pathology, Belfast Health and Social Care Trust, Belfast City Hospital, Belfast, UK
| | - Hajrah Khawaja
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Stephanie Craig
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Jackie James
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
- Tissue Pathology, Belfast Health and Social Care Trust, Belfast City Hospital, Belfast, UK
| | - Wendy L. Moore
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Darragh G. McArt
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Mark Lawler
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Sonali Dasgupta
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Patrick G. Johnston
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
| | - Sandra Van Schaeybroeck
- Drug Resistance Group, Centre for Cancer Research and Cell Biology, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
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Esfahani SA, Heidari P, Kim SA, Ogino S, Mahmood U. Optical Imaging of Mesenchymal Epithelial Transition Factor (MET) for Enhanced Detection and Characterization of Primary and Metastatic Hepatic Tumors. Theranostics 2016; 6:2028-2038. [PMID: 27698938 PMCID: PMC5039678 DOI: 10.7150/thno.15718] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 07/22/2016] [Indexed: 12/13/2022] Open
Abstract
Purpose: To assess optical imaging of Mesenchymal-Epithelial Transition factor (MET) for delineation and characterization of intrahepatic models of human hepatocellular carcinoma (HCC) and metastatic colorectal cancer (CRC), and thereby demonstrate its potential use in precision oncology. Materials and Methods: MET expression in human CRC and HCC was assessed in tissue microarrays. We used GE-137, a modified cyanine 5-tagged peptide for MET targeting. HepG2 and Huh-7 (HCC) and HT-29 (CRC) cells with MET overexpression, and LNCaP cells (negative control) with minimal MET expression were incubated with the probe. Correlation between the relative fluorescence signal intensity and cellular MET expression level was assessed. Flow cytometry was used to assess probe specific binding and dissociation constant (Kd). Orthotopic xenograft models of human HCC and metastatic CRC were generated in nu/nu mice by subcapsular implantation of cells. Epifluorescence imaging was performed to capture the changes in deferential probe accumulation at different time points after injection. Target-to-liver background ratio (TBR) was calculated and the probe biodistribution within different organs was assessed. Histopathologic analysis of extracted xenografts was performed to correlate the tumors MET expression with probe uptake by cancer cells. Results: Approximately 91.5% of HCC and 81% of CRC microarray cores showed MET expression. HCC and CRC cells incubated with the probe showed substantial fluorescence compared to control LNCaP, with strong correlation between fluorescence signal and MET expression (R2 = 0.99, p < 0.001). Probe binding affinity to MET (Kd) was measured to be 2.9 ± 0.36 nM. Epifluorescence imaging showed intense uptake in subcapsular tumors with peak TBR of 5.46 ± 0.46 in Huh-7, 3.55 ± 0.38 in HepG2, and 15.93 ± 0.61 in HT-29 orthotopic xenografts at 4 hours post-injection (mean ± standard deviation). We demonstrated that in vivo probe uptake in xenografts is specific and can be blocked when co-injected with unlabeled peptide; for instance the epifluorescence TBR is reduced from 13.5 ± 1.2 to 1.7 ± 0.3 (p < 0.05) in HT-29 and from 5.3 ± 0.8 to 1.4 ± 0.2 (p < 0.05) in Huh-7 xenografts after co-injection with unlabeled peptides. Biodistribution studies showed predominantly renal clearance of the probe. Conclusion: Optical imaging of MET resulted in high TBR in animal models of primary and metastatic hepatic tumors suggesting its utility for procedural guidance.
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Pajari AM, Päivärinta E, Paavolainen L, Vaara E, Koivumäki T, Garg R, Heiman-Lindh A, Mutanen M, Marjomäki V, Ridley AJ. Ellagitannin-rich cloudberry inhibits hepatocyte growth factor induced cell migration and phosphatidylinositol 3-kinase/AKT activation in colon carcinoma cells and tumors in Min mice. Oncotarget 2016; 7:43907-43923. [PMID: 27270323 PMCID: PMC5190067 DOI: 10.18632/oncotarget.9724] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 05/16/2016] [Indexed: 11/25/2022] Open
Abstract
Berries have been found to inhibit colon carcinogenesis in animal models, and thus represent a potential source of compounds for prevention and treatment of colorectal cancer. The mechanistic basis for their effects is not well understood. We used human colon carcinoma cells and Min mice to investigate the effects of ellagitannin-rich cloudberry (Rubus chamaemorus) extract on cancer cell migration and underlying cell signaling. Intrinsic and hepatocyte growth factor (HGF) -induced cell motility in human HT29 and HCA7 colon carcinoma cells was assessed carrying out cell scattering and scratch wound healing assays using time-lapse microscopy. Activation of Met, AKT, and ERK in cell lines and tumors of cloudberry-fed Min mice were determined using immunoprecipitation, Western blot and immunohistochemical analyses. Cloudberry extract significantly inhibited particularly HGF-induced cancer cell migration in both cell lines. Cloudberry extract inhibited the Met receptor tyrosine phosphorylation by HGF and strongly suppressed HGF-induced AKT and ERK activation in both HT29 and HCA7 cells. Consistently, cloudberry feeding (10% w/w freeze-dried berries in diet for 10 weeks) reduced the level of active AKT and prevented phosphoMet localization at the edges in tumors of Min mice. These results indicate that cloudberry reduces tumor growth and cancer cell motility by inhibiting Met signaling and consequent activation of phosphatidylinositol 3-kinase/AKT in vitro and in tumors in vivo. As the Met receptor is recognized to be a major target in cancer treatment, our results suggest that dietary phytochemicals may have therapeutic value in reducing cancer progression and metastasis.
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Affiliation(s)
- Anne-Maria Pajari
- Department of Food and Environmental Sciences, Division of Nutrition, University of Helsinki, Helsinki, Finland
- University College London, Ludwig Institute for Cancer Research, London, UK
| | - Essi Päivärinta
- Department of Food and Environmental Sciences, Division of Nutrition, University of Helsinki, Helsinki, Finland
| | - Lassi Paavolainen
- Department of Biological and Environmental Science / Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Elina Vaara
- Department of Food and Environmental Sciences, Division of Nutrition, University of Helsinki, Helsinki, Finland
| | - Tuuli Koivumäki
- Department of Food and Environmental Sciences, Division of Food Chemistry, University of Helsinki, Helsinki, Finland
| | - Ritu Garg
- Randall Division of Cell & Molecular Biophysics, King's College London, New Hunt's House, Guy's Campus, London, UK
| | - Anu Heiman-Lindh
- Department of Food and Environmental Sciences, Division of Nutrition, University of Helsinki, Helsinki, Finland
| | - Marja Mutanen
- Department of Food and Environmental Sciences, Division of Nutrition, University of Helsinki, Helsinki, Finland
| | - Varpu Marjomäki
- Department of Biological and Environmental Science / Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Anne J. Ridley
- University College London, Ludwig Institute for Cancer Research, London, UK
- Randall Division of Cell & Molecular Biophysics, King's College London, New Hunt's House, Guy's Campus, London, UK
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Abstract
BACKGROUND Metastasis-associated in colon cancer-1 (MACC1), a newly identified regulator of HGF-MET signaling, may participate into the key steps of sporadic colorectal adenocarcinoma development. Given there are many pathogenetic distinctions between colitis-associated colorectal cancer (CAC) and sporadic colorectal adenocarcinomas, the potential roles of MACC1 in CAC carcinogenesis remain unknown. For the first time, we evaluated the expressions of MACC1 and MET in IBD-associated colitis, dysplasia, and adenocarcinoma. METHODS Expression was investigated by immunohistochemistry in tissue microarrays consisting of 13 normal colon, 11 active colitis, 9 dysplasia, 51 conventional CAC, 5 mucinous adenocarcinoma, and 1 signet ring cell adenocarcinoma specimens. The expression level of MACC1 or MET was evaluated with H-score system. RESULTS MACC1 expression was significantly higher in IBD-associated dysplasia than that in corresponding inflammatory or normal colonic tissue, and its level was further elevated from dysplasia to conventional CAC. Higher MACC1 expression was seen in a patient with CAC who had multifocal dysplasia or synchronous carcinoma. MACC1 overexpression (H-score >100) was seen in 67% of conventional CAC but in 0% of dysplasia and 0% of inflammation or normal colon. There was no difference of MACC1 expression found among well, moderately and poorly differentiated CAC. MET expressions in inflammation, dysplasia, and conventional CAC were statistically similar. No parallel expression of MACC1 and MET was detected in this study. MACC1 and MET expression was not increased in mucinous or signet ring cell carcinoma, 2 distinct variants of CAC. CONCLUSIONS Stepwise increase of MACC1 expression from IBD-associated colitis to dysplasia to adenocarcinoma suggests that MACC1 is strongly associated with conventional CAC tumorigenesis in a manner independent of MET. MACC1 may serve as a potential marker for early diagnosis of conventional CAC.
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Hou L, Zhao MM, Sun BM, Xing HJ. Expression of c-Met protein in gastrointestinal tumors: Recent research progress. Shijie Huaren Xiaohua Zazhi 2013; 21:3230-3235. [DOI: 10.11569/wcjd.v21.i30.3230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
There is a close relationship between HGF/c-Met and many human cancers. The activation and overexpression of HGF/c-Met can cause the growth, invasion and metastasis of breast cancer, ovarian cancer, endometrial cancer, lung cancer, and digestive system tumors. Since c-Met plays an important role in the growth and metastasis of tumors, targeting the HGF/c-Met pathway has become a hotspot for anti-cancer research. Currently, there have been many reports about c-Met expression in digestive tumors. In this paper we try to elaborate the latest progress in research related to c-Met expression in digestive tumors, with an aim to help clinicians gain a systematic understanding of this issue.
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Bagai R, Ma PC. The Role of the Insulin-like Growth Factor-1 Receptor (IGF-1R), Phosphatase and Tensin Homolog (PTEN), c-Met, and the PI3-Kinase Pathway in Colorectal Cancer. CURRENT COLORECTAL CANCER REPORTS 2012. [DOI: 10.1007/s11888-012-0139-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Raghav KPS, Eng C. Role of the MET–HGF axis in colorectal cancer: precepts and prospects. COLORECTAL CANCER 2012. [DOI: 10.2217/crc.12.40] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
SUMMARY Colorectal cancer (CRC) accounts for 10% of all cancer-related mortality globally. Despite significant therapeutic advances, overall survival is limited. The restricted repertoire of therapies necessitates investigation into novel pathways of colorectal carcinogenesis. The proto-oncogene MET encodes a receptor tyrosine kinase that acts as a receptor for the HGF. Dysregulation of this MET–HGF axis has been implicated in proliferation, survival and metastasis in various tumor types including CRC. Increased MET–HGF expression correlates with tumor progression and adverse survival outcome. The prognostic impact argues in favor of employing inhibition of the MET–HGF axis as a promising new therapeutic strategy. Future investigations should endeavor to assess the potential application of targeted MET–HGF therapy in CRC and towards patient selection.
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Affiliation(s)
- Kanwal Pratap Singh Raghav
- Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, 1400 Holcombe Blvd. Unit # 463, Houston, TX 77030, USA
| | - Cathy Eng
- Department of Gastrointestinal (GI) Medical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Holcombe Blvd. Unit # 463, Houston, TX 77030, USA
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Reid JF, Sokolova V, Zoni E, Lampis A, Pizzamiglio S, Bertan C, Zanutto S, Perrone F, Camerini T, Gallino G, Verderio P, Leo E, Pilotti S, Gariboldi M, Pierotti MA. miRNA Profiling in Colorectal Cancer Highlights miR-1 Involvement in MET-Dependent Proliferation. Mol Cancer Res 2012; 10:504-15. [DOI: 10.1158/1541-7786.mcr-11-0342] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Migliore C, Martin V, Leoni VP, Restivo A, Atzori L, Petrelli A, Isella C, Zorcolo L, Sarotto I, Casula G, Comoglio PM, Columbano A, Giordano S. MiR-1 downregulation cooperates with MACC1 in promoting MET overexpression in human colon cancer. Clin Cancer Res 2011; 18:737-47. [PMID: 22179665 DOI: 10.1158/1078-0432.ccr-11-1699] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE MET, the tyrosine kinase receptor for hepatocyte growth factor, is frequently overexpressed in colon cancers with high metastatic tendency. We aimed to evaluate the role of its negative regulators, miR-1 and miR-199a*, and its transcriptional activator, the metastasis-associated in colon cancer 1 (MACC1), in controlling MET expression in human colon cancer samples. EXPERIMENTAL DESIGN The expression of MET, miR-1, miR-199a*, and MACC1 was evaluated by real-time PCR in 52 matched pairs of colorectal cancers and nontumoral surrounding tissues. The biological role of miR-1 in controlling MET expression and biological activity was assessed in colon cancer cells either by its forced expression or by AntagomiR-mediated inhibition. RESULTS MiR-1 was downregulated in 84.6% of the tumors and its decrease significantly correlated with MET overexpression, particularly in metastatic tumors. We found that concurrent MACC1 upregulation and miR-1 downregulation are required to elicit the highest increase of MET expression. Consistent with a suppressive role of miR-1, its forced in vitro expression in colon cancer cells reduced MET levels and impaired MET-induced invasive growth. Finally, we identified a feedback loop between miR-1 and MET, resulting in their mutual regulation. CONCLUSIONS This study identifies an oncosuppressive role of miR-1 in colorectal cancer in which it acts by controlling MET expression through a feedback loop. Concomitant downregulation of miR-1 and increase of MACC1 can thus contribute to MET overexpression and to the metastatic behavior of colon cancer cells.
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Affiliation(s)
- Cristina Migliore
- IRCC, Institute for Cancer Research and Treatment, University of Torino School of Medicine, Candiolo, Turin, Italy
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Adjei AA, Schwartz B, Garmey E. Early clinical development of ARQ 197, a selective, non-ATP-competitive inhibitor targeting MET tyrosine kinase for the treatment of advanced cancers. Oncologist 2011; 16:788-99. [PMID: 21632449 DOI: 10.1634/theoncologist.2010-0380] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Expression of the receptor tyrosine kinase c-MET (MET, mesenchymal-epithelial transition factor) in many cancers, and its participation in multiple signal transduction pathways involved in malignant tumor growth, suggest a wide therapeutic potential for MET inhibition in human cancer. Here we describe the discovery and early clinical development of ARQ 197, a novel, selective, non-ATP-competitive inhibitor of MET. Phase I studies demonstrate that ARQ 197 has a predictable pharmacokinetics and favorable safety profile, making it a potentially ideal partner for combination with cytotoxic chemotherapies and targeted anticancer agents. Results from phase I and phase II trials demonstrate preliminary evidence of anticancer activity. New data from a global phase II randomized trial comparing a combination of ARQ 197 plus erlotinib with erlotinib/placebo, in endothelial growth factor receptor inhibitor-naïve patients with locally advanced/metastatic non-small cell lung cancer, demonstrate improvement in progression-free and overall survival with combined therapy. Results were especially pronounced for patients with non-squamous lung cancer histologies, and in particular molecularly defined subgroups including KRAS mutations. These and other data from ARQ 197 clinical trials in hepatocellular, germ-cell, pancreatic (in combination with gemcitabine), and colorectal (in combination with cetuximab and irinotecan) cancers further highlight the potential role of ARQ 197 in existing and emerging anticancer therapeutic regimens.
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Affiliation(s)
- Alex A Adjei
- Roswell Park Cancer Institute, Buffalo, New York, USA.
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Towner RA, Smith N, Asano Y, Doblas S, Saunders D, Silasi-Mansat R, Lupu F. Molecular magnetic resonance imaging approaches used to aid in the understanding of the tissue regeneration marker Met in vivo: implications for tissue engineering. Tissue Eng Part A 2010; 16:365-71. [PMID: 19905873 DOI: 10.1089/ten.tea.2009.0234] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The levels of Met, a tyrosine kinase receptor for the hepatocyte growth factor or scatter factor, are elevated during tissue regeneration, and can be used to assess tissue regeneration associated with engineered tissue grafts. This study involved the development and assessment of a novel magnetic resonance imaging (MRI) molecular probe for the in vivo detection of Met in an experimental rodent (rat) model of disease (C6 glioma). The implication of using these probes in tissue engineering is discussed. The molecular targeting agent we used in our study incorporated a magnetite-based dextran-coated nanoparticle backbone covalently bound to an anti-Met antibody. We used molecular MRI with an anti-Met probe to detect in vivo Met levels as a molecular marker for gliomas. Tumor regions were compared to normal tissue, and found to significantly (p < 0.05) decrease MR signal intensity and T(2) relaxation in tumors. Nonimmune nonspecific normal rat IgG coupled to the dextran-coated nanoparticles was used as a control. Met levels in tumor tissues were confirmed in Western blots. Based on our results, in vivo evaluation of tissue regeneration using molecular MRI is possible in tissue engineering applications.
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Affiliation(s)
- Rheal A Towner
- 1 Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation , Oklahoma City, Oklahoma
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Bacolod MD, Barany F. Gene dysregulations driven by somatic copy number aberrations-biological and clinical implications in colon tumors: a paper from the 2009 William Beaumont Hospital Symposium on Molecular Pathology. J Mol Diagn 2010; 12:552-61. [PMID: 20709793 DOI: 10.2353/jmoldx.2010.100098] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The majority of colorectal cancer (CRC) cases have chromosomal instability, in which the tumor genome is characterized by gross chromosomal aberrations such as gains in 20q, 13q, 8q, and 7, and losses in 4, 8p, 18q, and 17p. These somatic copy number changes (gains, losses, and somatic uniparental disomies) are crucial to CRC progression as they drive genes toward cancer-promoting (oncogenic or tumor suppressive) states. Numerous studies have shown that the loss of 18q or 8p is associated with poorer clinical outcome in CRCs. Either chromosomal arm may contain a tumor suppressor gene (or genes), whose deactivation by copy loss (loss of wild-type allele, decreased expression) can be crucial to the later stages of cancer progression. Our own integrated genomic analysis (single nucleotide polymorphism array, expression array) of more than 200 CRC tumor and normal samples indicates that the overall down-regulation of genes within the 8p or 18q arm is associated with lower survival rate. Among the often down-regulated, poor prognosis-associated 8p genes is MTUS1, whose gene product (a mitotic spindle-associated protein) was recently demonstrated to have a tumor suppressive property. Within 18q is ATP5A1, which codes for the catalytic a component of mitochondrial H(+)-ATP synthase. Like SMAD4 (also in 18q), the decreased expression of ATP5A1 appears to be a marker of unfavorable clinical outcome in CRCs.
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Affiliation(s)
- Manny D Bacolod
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, New York 10065, USA.
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Holgren C, Dougherty U, Edwin F, Cerasi D, Taylor I, Fichera A, Joseph L, Bissonnette M, Khare S. Sprouty-2 controls c-Met expression and metastatic potential of colon cancer cells: sprouty/c-Met upregulation in human colonic adenocarcinomas. Oncogene 2010; 29:5241-53. [PMID: 20661223 PMCID: PMC2945447 DOI: 10.1038/onc.2010.264] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Sprouty negatively regulates receptor tyrosine kinase signals by inhibiting Ras/ERK pathways. Sprouty is down-regulated in breast, prostate and liver cancers and appears to function as a tumor suppressor. The role of Sprouty in colonic neoplasia, however, has not been investigated. Sprouty-2 protein and mRNA transcripts were significantly up-regulated in human colonic adenocarcinomas. Strikingly, the c-Met receptor was also upregulated in tumors with increased sprouty-2. To delineate a potential causal relationship between sprouty-2 and c-Met, K-ras mutant HCT-116 colon cancer cells were transduced with purified TAT-sprouty-2 protein or stably transfected with full-length human sprouty-2 gene. Sprouty-2 up-regulation significantly increased cell proliferation by accelerating cell cycle transition. Sprouty-2 transfectants demonstrated strong up-regulation of c-Met protein and mRNA transcripts and hepatocyte growth factor stimulated ERK and Akt phosphorylation and enhanced cell migration and invasion. In contrast, knockdown of c-Met by siRNA significantly decreased cell proliferation, migration and invasion in sprouty-2 transfectants. Further, knockdown of sprouty-2 by siRNA in parental HT-29 and LS-174T colon cancer cells also decreased cell invasion. Sprouty-2 transfectants formed significantly larger tumor xenografts and demonstrated increased proliferation and angiogenesis and suppressed apoptosis. Sprouty-2 tumors metastasized to liver from cecal orthotopic implants suggesting sprouty-2 might also enhance metastatic signals. Thus in colon cancer sprouty functions as an oncogene and its effects are mediated in part by c-Met up-regulation.
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Affiliation(s)
- C Holgren
- Hines Veterans Affairs Medical Center, Hines, IL, USA
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Sugatani J, Osabe M, Kurosawa M, Kitamura N, Ikari A, Miwa M. Induction of UGT1A1 and CYP2B6 by an antimitogenic factor in HepG2 cells is mediated through suppression of cyclin-dependent kinase 2 activity: cell cycle-dependent expression. Drug Metab Dispos 2010; 38:177-86. [PMID: 19797611 DOI: 10.1124/dmd.109.029785] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Hepatocyte growth factor (HGF), an antimitogenic factor for HepG2 cells, increased mRNA and protein levels of UGT1A1 and CYP2B6, as well as the endogenous cyclin-dependent kinase (CDK) inhibitors p16, p21, and p27 in HepG2 cells but not in HuH6, Caco2, or MCF7 cells. Treatment with 1,4-diamino-2,3-dicyano-1,4-bis(methylthio)butadiene (U0126) (an extracellular signal-regulated kinase inhibitor) suppressed the HGF-induced expression of UGT1A1 and CYP2B6, as well as p16, p21, and p27 in HepG2 cells. The CDK inhibitor roscovitine also enhanced the expression of UGT1A1, CYP2B6, and CYP3A4. Transfection of anti-CDK2 siRNA led to elevated levels of UGT1A1, CYP2B6, and CYP3A4 in HepG2 and SW480 cells, whereas anti-CDK4 small interfering RNA (siRNA) did not significantly enhance the expression of these enzymes. In fact, CDK2 activity was decreased in HGF-treated HepG2 cells. In cells arrested in S phase by a thymidine block and then released into a synchronous cell cycle, there was a clear dissociation among the activation of CDK2 and the expression of UGT1A1, CYP2B6, and CYP3A4. Furthermore, the induction of CYP3A4 but not UGT1A1 or CYP2B6 mRNA expression by roscovitine was repressed in pregnane X receptor (PXR) siRNA-transfected HepG2 cells. Transfection with constitutive androstane receptor siRNA or PXR siRNA in HepG2 cells did not repress the HGF-stimulated expression of UGT1A1 mRNA. Taken together, our results show that the expression of UGT1A1 and CYP2B6 is negatively regulated through a CDK2 signaling pathway linked to cell cycle progression in HepG2 and SW480 cells, the mechanism of which may differ from that of CYP3A4 expression through PXR phosphorylated by CDK2.
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Affiliation(s)
- Junko Sugatani
- Department of Pharmaco-Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Suppression of Met activation in human colon cancer cells treated with (-)-epigallocatechin-3-gallate: minor role of hydrogen peroxide. Biochem Biophys Res Commun 2009; 389:527-30. [PMID: 19744467 DOI: 10.1016/j.bbrc.2009.09.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 09/04/2009] [Indexed: 12/16/2022]
Abstract
Colorectal cancer is the second leading cause of cancer-related deaths in the U.S. Met, the receptor for hepatocyte growth factor (HGF), is over-expressed in colon tumors and is associated with poor prognosis. Recently, the green tea polyphenol (-)-epigallocatechin gallate (EGCG) was reported to suppress Met activation in breast cancer cells. However, the possible confounding effect of hydrogen peroxide (H(2)O(2)), produced when EGCG is added to cell culture media, was not assessed. In the present study, the human colon cancer cell lines HCT116 and HT29 were used to examine the relationships between Met activation, EGCG treatment, and H(2)O(2) generation. At concentrations of 0.5, 1, and 5 microM, EGCG suppressed markedly the activation of Met in the presence of HGF. Concentrations of 10muM EGCG and below generated low amounts of H(2)O(2) (<1.5 microM), whereas higher H(2)O(2) concentrations (>5 microM) were required to directly increase the phosphorylation of Met. Moreover, suppression of Met activation by EGCG occurred in the presence or absence of catalase, suggesting that such effects were not an 'artifact' of H(2)O(2) generated from EGCG in cell culture media. We conclude that EGCG might be a beneficial therapeutic agent in the colon, inhibiting Met signaling and helping to attenuate tumor spread/metastasis, independent of H(2)O(2)-related mechanisms.
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Moore AE, Greenhough A, Roberts HR, Hicks DJ, Patsos HA, Williams AC, Paraskeva C. HGF/Met signalling promotes PGE(2) biogenesis via regulation of COX-2 and 15-PGDH expression in colorectal cancer cells. Carcinogenesis 2009; 30:1796-804. [PMID: 19638428 DOI: 10.1093/carcin/bgp183] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Evidence points towards a pivotal role for cyclooxygenase (COX)-2 in promoting colorectal tumorigenesis through increasing prostaglandin E(2) (PGE(2)) levels. PGE(2) signalling is closely associated with the survival, proliferation and invasion of colorectal cancer cells. Recently, a reduction in PGE(2) inactivation, a process mediated by the nicotinamide adenine dinucleotide (NAD+)-dependent 15-hydroxyprostaglandin dehydrogenase (15-PGDH), has also been shown to promote tumoral PGE(2) accumulation. The hepatocyte growth factor (HGF) receptor, Met, is frequently over-expressed in colorectal tumours and promotes cancer growth, metastasis and resistance to therapy, although the mechanisms for this have not been fully elucidated. Here, we report that HGF/Met signalling can promote PGE(2) biogenesis in colorectal cancer cells via COX-2 up-regulation and 15-PGDH down-regulation at the protein and messenger RNA level. Pharmacological inhibition of MEK and PI3K suggested that both extracellular signal-regulated kinase (ERK) and AKT signalling are required for COX-2 protein up-regulation and 15-PGDH down-regulation downstream of Met. Notably, inhibition of Met with the small molecule inhibitor SU11274 reduced COX-2 expression and increased 15-PGDH expression in high Met-expressing cells. We also show that hypoxia potentiated HGF-driven COX-2 expression and enhanced PGE(2) release. Furthermore, inhibition of COX-2 impeded the growth-promoting effects of HGF, suggesting that the COX-2/PGE(2) pathway is an important mediator of HGF/Met signalling. These data reveal a critical role for HGF/Met signalling in promoting PGE(2) biogenesis in colorectal cancer cells. Targeting the crosstalk between these two important pathways may be useful for therapeutic treatment of colorectal cancer.
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Affiliation(s)
- Amy E Moore
- Cancer Research UK Colorectal Tumour Biology Group, Department of Cellular and Molecular Medicine, School of Medical Sciences, University of Bristol, University Walk, Bristol, UK
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Discovery of fully human anti-MET monoclonal antibodies with antitumor activity against colon cancer tumor models in vivo. Neoplasia 2009; 11:355-64. [PMID: 19308290 DOI: 10.1593/neo.81536] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 01/08/2009] [Accepted: 01/09/2009] [Indexed: 01/28/2023] Open
Abstract
The receptor tyrosine kinase MET is a major component controlling the invasive growth program in embryonic development and in invasive malignancies. The discovery of therapeutic antibodies against MET has been difficult, and antibodies that compete with hepatocyte growth factor (HGF) act as agonists. By applying phage technology and cell-based panning strategies, we discovered two fully human antibodies against MET (R13 and R28), which synergistically inhibit HGF binding to MET and elicit antibody-dependent cellular cytotoxicity. Cell-based phosphorylation assays demonstrate that R13 and R28 abrogate HGF-induced activation of MET, AKT1, ERK1/2, and HGF-induced migration and proliferation. FACS experiments suggest that the inhibitory effect is mediated by "locking" MET receptor in a state with R13, which then increases avidity of R28 for the extracellular domain of MET, thus blocking HGF binding without activating the receptor. In vivo studies demonstrate that the combination of R13/28 significantly inhibited tumor growth in various colon tumor xenograft models. Inhibition of tumor growth was associated with induction of hypoxia. Global gene expression analysis shows that inhibition of HGF/MET pathway significantly upregulated the tumor suppressors KLF6, CEACAM1, and BMP2, the negative regulator of phosphatidylinositol-3-OH-kinase PIK3IP1, and significantly suppressed SCF and SERPINE2, both enhancers of proliferation and invasiveness. Moreover, in an experimental metastasis model, R13/28 increased survival by preventing the recurrence of otherwise lethal lung metastases. Taken together, these results underscore the utility of a dual-antibody approach for targeting MET and possibly other receptor tyrosine kinases. Our approach could be expanded to drug discovery efforts against other cell surface proteins.
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Lee CT, Chow NH, Su PF, Lin SC, Lin PC, Lee JC. The prognostic significance of RON and MET receptor coexpression in patients with colorectal cancer. Dis Colon Rectum 2008; 51:1268-74. [PMID: 18536971 DOI: 10.1007/s10350-008-9297-1] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Although Recepteur d'Origine Nantais (RON), a member of the MET receptor tyrosine kinase family, is overexpressed and constitutively active in some primary tumors and tumor cell lines, its expression pattern and clinical significance in colorectal cancer are not well documented. METHODS By using immunohistochemical staining, we examined RON and MET expression in 135 colorectal cancer specimens and investigated the association of the immunoreactivity of both receptors with colorectal cancer clinical parameters and prognosis. RESULTS We found moderate to strong expression in 99 cases (73 percent) for RON and 97 cases (72 percent) for MET. Univariate analysis showed that increased immunoreactivity of RON or MET was associated with shorter patient survival and that moderate to strong coexpression of both receptors was associated with a significantly worse prognosis. Multivariate Cox analysis showed that the risk of tumor recurrence for patients with high-RON/high-MET expression was approximately 11 times greater than for patients with low-RON/low-MET expression (P = 0.001). In addition, RON and MET expression levels were positively correlated (P <or= 0.001; tau = 0.306). CONCLUSIONS The crosstalk between RON and MET in colorectal cancer seems important. Evaluating the expression patterns of RON and MET was predictive of clinical outcome for patients with colorectal cancer.
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Affiliation(s)
- Chung-Ta Lee
- Department of Pathology, National Cheng Kung University Hospital Dou-Liou Branch, Douliou City, Yunlin County, Taiwan
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31
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Cipriani NA, Abidoye OO, Vokes E, Salgia R. MET as a target for treatment of chest tumors. Lung Cancer 2008; 63:169-79. [PMID: 18672314 DOI: 10.1016/j.lungcan.2008.06.011] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2008] [Accepted: 06/15/2008] [Indexed: 12/11/2022]
Abstract
The receptor tyrosine kinase MET has been studied of a large variety of human cancers, including lung and mesothelioma. The MET receptor and its ligand HGF (hepatocyte growth factor) play important roles in cell growth, survival and migration, and dysregulation of the HGF-MET pathway leads to oncogenic changes including tumor proliferation, angiogenesis and metastasis. In small cell lung cancer (SCLC), non-small cell lung cancer (NSCLC), and malignant pleural mesothelioma (MPM), MET is dysregulated via overexpression, constitutive activation, gene amplification, ligand-dependent activation, mutation or epigenetic mechanisms. New drugs targeted against MET and HGF are currently being investigated in vitro and in vivo, with promising results. These drugs function at a variety of steps within the HGF-MET pathway, including MET expression at the RNA or protein level, the ligand-receptor interaction, and tyrosine kinase function. This paper will review the structure, function, mechanisms of tumorigenesis, and potential for therapeutic inhibition of the MET receptor in lung cancer and mesothelioma.
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Affiliation(s)
- Nicole A Cipriani
- Department of Medicine, University of Chicago Medical Center, Chicago, IL 60637, USA
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Zeng ZS, Weiser MR, Kuntz E, Chen CT, Khan SA, Forslund A, Nash GM, Gimbel M, Yamaguchi Y, Culliford AT, D'Alessio M, Barany F, Paty PB. c-Met gene amplification is associated with advanced stage colorectal cancer and liver metastases. Cancer Lett 2008; 265:258-69. [PMID: 18395971 DOI: 10.1016/j.canlet.2008.02.049] [Citation(s) in RCA: 150] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Revised: 02/06/2008] [Accepted: 02/11/2008] [Indexed: 12/29/2022]
Abstract
The c-Met proto-oncogene encodes a receptor tyrosine kinase (TK) that promotes invasive tumor growth and metastasis. Recent studies show that the presence of c-Met gene amplification is predictive for selective c-Met TK inhibitors in gastric cancer and lung cancer. In this study, we utilized a highly quantitative PCR/ligase detection reaction technique to quantify c-Met gene copy number in primary colorectal cancer (CRC) (N=247), liver metastases (N=147), and paired normal tissues. We identified no differences in c-Met gene copy number between normal colonic mucosa and liver tissue. However, mean c-Met gene copy number was significantly elevated in CRC compared with normal mucosa (P<0.001), and in liver metastases compared with normal liver (P<0.001). Furthermore, a significant increase in c-Met was seen in liver metastases compared with primary CRC (P<0.0001). c-Met gene amplification was observed in 2% (3/177) of localized cancers, 9% (6/70) of cancers with distant metastases (P<0.02), and 18% (25/147) of liver metastases (P<0.01). Among patients treated by liver resection, there was a trend toward poorer 3-year survival in association with c-Met gene amplification (P=0.07). Slight increases in c-Met copy number can be detected in localized CRCs, but gene amplification is largely restricted to Stage IV primary cancers and liver metastases. c-Met gene amplification is linked to metastatic progression, and is a viable target for a significant subset of advanced CRC.
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Affiliation(s)
- Zhao-Shi Zeng
- Department of Surgery, Colorectal Service, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10021, USA
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Tuynman JB, Vermeulen L, Boon EM, Kemper K, Zwinderman AH, Peppelenbosch MP, Richel DJ. Cyclooxygenase-2 inhibition inhibits c-Met kinase activity and Wnt activity in colon cancer. Cancer Res 2008; 68:1213-20. [PMID: 18281498 DOI: 10.1158/0008-5472.can-07-5172] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Activity of receptor tyrosine kinases (RTK) in colorectal cancer (CRC) is associated with enhanced tumor growth and a poorer prognosis. In addition, cyclooxygenase-2 (COX-2) expression contributes to tumor growth and invasion. COX-2 inhibitors exhibit important anticarcinogenic potential against CRC, but the molecular mechanism underlying this effect and the relation with RTK signaling remain the subject of intense research effort. Therefore, the rapid effects of COX-2 inhibition in CRC on the complement of all cellular kinases were investigated using a kinase substrate peptide array, Western blotting, transfection, small interfering RNA assays, and CRC cell lines. The resulting alterations in the kinome profile revealed that celecoxib, a selective COX-2 inhibitor, impairs phosphorylation of substrates for the RTKs c-Met and insulin-like growth factor receptor, resulting in decreased downstream signaling. The decrease in c-Met activation is accompanied with an increase in glycogen synthase kinase 3beta kinase activity together with a rapid increase in phosphorylation of beta-catenin. In agreement, a significant reduction of beta-catenin-T-cell factor-dependent transcription is observed both with celecoxib and selective inhibition of c-Met phosphorylation by small molecules. Hence, corepression of c-Met-related and beta-catenin-related oncogenic signal transduction seems a major effector of celecoxib in CRC, which provides a rationale to use c-Met inhibitors and celecoxib analogous to target c-Met and Wnt signaling in a therapeutic setting for patients with CRC.
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Affiliation(s)
- Jurriaan B Tuynman
- Laboratory of Experimental Oncology, Department of Surgery, Academic Medical Center, Amsterdam, the Netherlands.
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Stein U, Schlag PM. Clinical, biological, and molecular aspects of metastasis in colorectal cancer. RECENT RESULTS IN CANCER RESEARCH. FORTSCHRITTE DER KREBSFORSCHUNG. PROGRES DANS LES RECHERCHES SUR LE CANCER 2007; 176:61-80. [PMID: 17607917 DOI: 10.1007/978-3-540-46091-6_7] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Colorectal cancer is one of the most frequent malignant tumors with a still increasing incidence in Western countries. Currently, colorectal cancer is the second most common cancer in Europe both in terms of incidence and mortality. Approximately 90% of all cancer deaths arise from the metastatic dissemination of primary tumors. Thus, metastasis is the most lethal attribute of colorectal cancer. Today, colorectal cancer and metastasis thereof are understood as the results of early changes during tumor progression that determine the metastasis capacity. Much is known about molecules contributing to the metastasis phenotype, the pathways they control, and the genes they regulate. However, patient prognosis is mainly defined by histopathological staging, a static description of the anatomical extent of tumor spread within a surgical specimen. This review demonstrates the need for and possibilities of molecular-based staging as an essential prerequisite for improved diagnosis, prognosis, and therapy. Molecular determinants for progression and metastasis of colorectal cancer are discussed representing both potential markers for metastasis prognosis and targets for intervention strategies aiming at the ultimate goal of metastasis prevention.
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Affiliation(s)
- Ulrike Stein
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
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Francone TD, Landmann RG, Chen CT, Sun MY, Kuntz EJ, Zeng Z, Dematteo RP, Paty PB, Weiser MR. Novel xenograft model expressing human hepatocyte growth factor shows ligand-dependent growth of c-Met-expressing tumors. Mol Cancer Ther 2007; 6:1460-6. [PMID: 17431125 DOI: 10.1158/1535-7163.mct-06-0466] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
c-Met, a receptor tyrosine kinase responsible for cellular migration, invasion, and proliferation, is overexpressed in human cancers. Although ligand-independent c-Met activation has been described, the majority of tumors are ligand dependent and rely on binding of hepatocyte growth factor (HGF) for receptor activation. Both receptor and ligand are attractive therapeutic targets; however, preclinical models are limited because murine HGF does not activate human c-Met. The goal of this study was to develop a xenograft model in which human HGF (hHGF) is produced in a controllable fashion in the mouse. Severe combined immunodeficient mice were treated with adenovirus encoding the hHGF transgene (Ad-hHGF) via tail vein injection, and transgene expression was determined by the presence of hHGF mRNA in mouse tissue and hHGF in serum. Ad-hHGF administration to severe combined immunodeficient mice resulted in hHGF production that was (a) dependent on quantity of virus delivered; (b) biologically active, resulting in liver hypertrophy; and (c) sustainable over 40 days. In this model, the ligand-dependent human tumor cell line SW1417 showed enhanced tumor growth, whereas the ligand-independent cell lines SW480 and GTL-16 showed no augmented tumor growth. This novel xenograft model is ideal for investigating c-Met/HGF-dependent human tumor progression and for evaluating c-Met targeted therapy.
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Affiliation(s)
- Todd D Francone
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
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36
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Towner RA, Smith N, Doblas S, Tesiram Y, Garteiser P, Saunders D, Cranford R, Silasi-Mansat R, Herlea O, Ivanciu L, Wu D, Lupu F. In vivo detection of c-Met expression in a rat C6 glioma model. J Cell Mol Med 2007; 12:174-86. [PMID: 18194445 PMCID: PMC3823479 DOI: 10.1111/j.1582-4934.2008.00220.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The tyrosine kinase receptor, c-Met, and its substrate, the hepatocyte growth factor (HGF), are implicated in the malignant progression of glioblastomas. In vivo detection of c-Met expression may be helpful in the diagnosis of malignant tumours. The C6 rat glioma model is a widely used intracranial brain tumour model used to study gliomas experimentally. We used a magnetic resonance imaging (MRI) molecular targeting agent to specifically tag the cell surface receptor, c-Met, with an anti-c-Met antibody (Ab) linked to biotinylated Gd (gadolinium)-DTPA (diethylene triamine penta acetic acid)-albumin in rat gliomas to detect overexpression of this antigen in vivo. The anti-c-Met probe (anti-c-Met-Gd-DTPA-albumin) was administered intravenously, and as determined by an increase in MRI signal intensity and a corresponding decrease in regional T1 relaxation values, this probe was found to detect increased expression of c-Met protein levels in C6 gliomas. In addition, specificity for the binding of the anti-c-Met contrast agent was determined by using fluorescence microscopic imaging of the biotinylated portion of the targeting agent within neoplastic and ‘normal’brain tissues following in vivo administration of the anti-c-Met probe. Controls with no Ab or with a normal rat IgG attached to the contrast agent component indicated no non-specific binding to glioma tissue. This is the first successful visualization of in vivo overexpression of c-Met in gliomas.
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Affiliation(s)
- R A Towner
- Small Animal MRI Core Facility, Oklahoma City, OK, USA.
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Kammula US, Kuntz EJ, Francone TD, Zeng Z, Shia J, Landmann RG, Paty PB, Weiser MR. Molecular co-expression of the c-Met oncogene and hepatocyte growth factor in primary colon cancer predicts tumor stage and clinical outcome. Cancer Lett 2006; 248:219-28. [PMID: 16945480 DOI: 10.1016/j.canlet.2006.07.007] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2006] [Revised: 07/13/2006] [Accepted: 07/19/2006] [Indexed: 01/07/2023]
Abstract
INTRODUCTION/HYPOTHESIS Over-expression of the c-Met receptor tyrosine kinase has been described in a variety of cancers and implicated in tumor progression. Unlike some solid tumors, current evidence indicates that c-Met activation in colon cancer is unrelated to gene mutation, is ligand dependent, and occurs via a paracrine fashion. We hypothesize that over-expression of the c-Met receptor and its ligand, hepatocyte growth factor (HGF) in the tumor microenvironment is associated with tumor progression and metastases. METHODS Primary tumor c-Met and HGF mRNA expression was analyzed in 60 colon adenocarcinomas. Receptor and ligand expression was analyzed for correlation and association with clinicopathologic features and outcome. RESULTS Compared to adjacent normal mucosa, 69% and 48% of tumors showed a greater than 2- and greater than 10-fold elevation in c-Met mRNA, respectively. Elevated HGF mRNA was noted in 47% of tumors with 19% having a greater than 10-fold increase. Tumor c-Met expression was correlated with HGF expression, and a cohort of 33 patients could be defined with both low c-Met and HGF expression. Compared with the 27 tumors with either high c-Met or HGF, the cohort with low c-Met and HGF expression had fewer nodal and distant metastases as well as improved overall survival (HR=2.3, p<0.05). CONCLUSION Evaluation of the c-Met receptor in context of ligand, HGF, allows identification of a metastatic phenotype that correlates with advanced stage and poor survival. c-Met and HGF co-expression in the tumor microenvironment could be useful in the molecular staging of colon cancer and viable therapeutic targets.
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Affiliation(s)
- Udai S Kammula
- Surgery Branch, National Cancer Institute, Bethesda, MD, USA
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Giatromanolaki A, Sivridis E, Koukourakis MI. Angiogenesis in colorectal cancer: prognostic and therapeutic implications. Am J Clin Oncol 2006; 29:408-17. [PMID: 16891872 DOI: 10.1097/01.coc.0000221317.56731.4e] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Angiogenesis is important for tumor growth and metastasis. This account reviews the clinicopathological studies conducted in the field of angiogenesis in colorectal cancer, the methods of assessing vascular-related characteristics in tissue sections and provides a background for the usefulness of antiangiogenic policies along with chemotherapy and radiotherapy. Highly angiogenic colorectal tumors are associated with aggressive histopathological features and poor patients' survival. Similarly, factors stimulating angiogenesis, such as vascular endothelial growth factor (VEGF), thymidine phosphorylase (TP), and others, are commonly related to increased vascular density (VD) and, therefore, to an unfavorable clinical course. Anti-VEGF agents have improved prognosis in patients with metastatic colorectal cancer, when added to standard chemotherapy. It is expected that, in addition to adjuvant chemotherapy and radiotherapy, agents blocking the stimulatory effect of VEGF on endothelial cells would prove beneficial to the patient.
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Affiliation(s)
- Alexandra Giatromanolaki
- Department of Pathology, Democritus University of Thrace Medical School, Alexandroupolis, Greece
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39
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Landmann RG, Weiser MR. Salvage Surgery for Locoregional Recurrence Following Local Excision. SEMINARS IN COLON AND RECTAL SURGERY 2005. [DOI: 10.1053/j.scrs.2005.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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