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Zhang Z, Miao L, Wang S, Zhao Y, Xie Y, Yun H, Ren Z, Wang G, Teng M, Li Y. Study on the expression of c-Met in gastric cancer and its correlation with preoperative serum tumor markers and prognosis. World J Surg Oncol 2022; 20:204. [PMID: 35710379 PMCID: PMC9202172 DOI: 10.1186/s12957-022-02659-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/28/2022] [Indexed: 12/04/2022] Open
Abstract
Background Studies have found that c-Met plays a critical role in the progression of solid tumors. This study aimed to investigate the expression of c-Met in gastric cancer (GC) and its correlation with preoperative serum tumor markers and prognosis, in order to provide a more theoretical basis for targeting c-Met in the treatment of GC. Methods Ninety-seven patients who underwent curative gastrectomy in our hospital from December 2013 to September 2015 were included in this study. The tissue microarray was constructed by paraffin-embedded tumor tissue of enrolled patients, including 97 GC points and 83 paracancerous points. Then, it was used for c-Met immunohistochemical staining, followed by an immunological H-score. The clinical baseline data and 5-year survival of patients with low and high c-Met expression were compared. Besides, the correlation between the expression of c-Met in tumor tissues and preoperative serum tumor markers was investigated. Finally, multivariate Cox regression analysis was used to explore the survival risk factors of patients. Results c-Met has a high expression rate in GC tissues 64.95% (63/97). The expression of c-Met was significantly different in different clinicopathological stages (p < 0.05); the high expression group also had a higher M stage and clinicopathological stage of GC. The correlation test between the c-Met H-score and CA125 was statistically significant (p = 0.004), indicating a positive correlation. Furthermore, high c-Met expression correlated with poor overall survival (OS) for 5 years (p = 0.005). It was also found that the high expression of c-Met in stage I–II patients was correlative with poor OS for 5 years (p = 0.026), while stage III–IV patients had no statistical significance (p > 0.05). Multivariate Cox regression analysis showed that c-Met might be an independent risk factor for survival 5 years after surgery. Conclusion This study found that the high expression of c-Met in GC tissues was associated with poor 5-year OS in GC patients and was an independent risk factor for 5-year survival after curative gastrectomy. The expression of c-Met in GC tissues was also positively correlated with preoperative serum CA125.
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Affiliation(s)
- Zhengchao Zhang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China.,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China.,Department of General Surgery, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine, Lanzhou, 730900, China
| | - Lele Miao
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China.,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China
| | - Song Wang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China.,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China
| | - Yang Zhao
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China.,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China
| | - Yongqiang Xie
- Department of General Surgery, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine, Lanzhou, 730900, China
| | - Heng Yun
- Department of General Surgery, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine, Lanzhou, 730900, China
| | - Zhijian Ren
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China.,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China
| | - Guan Wang
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China.,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China
| | - Muzhou Teng
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China. .,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China.
| | - Yumin Li
- Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, 730000, China. .,Key Laboratory of Digestive System Tumors of Gansu Province, Lanzhou, 730000, China.
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2
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Chen S, Wang Y, Chen L, Xia Y, Cui J, Wang W, Jiang X, Wang J, Zhu Y, Sun S, Zou Y, Gong Y, Shi B. CUL4B promotes aggressive phenotypes of renal cell carcinoma via upregulating c-Met expression. Int J Biochem Cell Biol 2020; 130:105887. [PMID: 33227394 DOI: 10.1016/j.biocel.2020.105887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 12/22/2022]
Abstract
Cullin 4B (CUL4B), encoding a scaffold protein in Cullin RING ubiquitin-ligase complexes (CRL4B), is overexpressed and serves as an oncogene in various solid tumors. However, the roles and the underlying mechanisms of CUL4B in renal cell carcinoma (RCC) are still unknown. In this study, we demonstrated that CUL4B was significantly upregulated in RCC cells and clinical specimens, and its overexpression was correlated with poor survival of RCC patients. Knockdown of CUL4B resulted in the inhibition of proliferation, migration and invasion of RCC cells. Furthermore, we found that the expression of CUL4B is positively correlated with c-Met expression in RCC cells and tissues. Konckdown of c-Met or treatment with c-Met inhibitor, SU11274, could block the increase in cell proliferation, migration and invasion induced by CUL4B-overexpression. We also showed that CUL4B overexpression significantly accelerated xenograft tumor growth, and administration of SU11274 could also abrogate the accelerated tumor growth induced by CUL4B overexpression in vivo. These findings shed light on the contribution of CUL4B to tumorigenesis in RCC via activating c-Met signaling and its therapeutic implications in RCC patients.
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Affiliation(s)
- Shouzhen Chen
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, Shandong University, School of Basic Medical Sciences, Jinan, Shandong, 250012, China; Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, Shandong, 250012, China
| | - Yong Wang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, Shandong University, School of Basic Medical Sciences, Jinan, Shandong, 250012, China; Key Laboratory of Urinary Precision Diagnosis and Treatment in Universities of Shandong, Jinan, Shandong, 250012, China
| | - Lipeng Chen
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Yangyang Xia
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jianfeng Cui
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Wenfu Wang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xuewen Jiang
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jian Wang
- Department of Urology, The People's Hospital of Laoling City, Dezhou, Shandong, 253600, China
| | - Yaofeng Zhu
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Shuna Sun
- Department of Dermatology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Provincial Hospital of Traditional Chinese Medicine, Jinan, Shandong, 250011, China
| | - Yongxin Zou
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, Shandong University, School of Basic Medical Sciences, Jinan, Shandong, 250012, China
| | - Yaoqin Gong
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, Shandong University, School of Basic Medical Sciences, Jinan, Shandong, 250012, China.
| | - Benkang Shi
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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Zhu S, Khalafi S, Chen Z, Poveda J, Peng D, Lu H, Soutto M, Que J, Garcia-Buitrago M, Zaika A, El-Rifai W. Silencing of miR490-3p by H. pylori activates DARPP-32 and induces resistance to gefitinib. Cancer Lett 2020; 491:87-96. [PMID: 32735911 DOI: 10.1016/j.canlet.2020.07.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023]
Abstract
Infection with Helicobacter pylori (H. pylori) is the main risk factor for gastric carcinogenesis. In this study, we investigated the expression, molecular functions, and downstream effectors of miR490-3p in gastric cancer. We used in vitro and in vivo models to investigate the role of H. pylori in regulating miR490-3p, DARPP-32-dependent functions, and therapeutic resistance. Human and mouse neoplastic gastric lesions demonstrated a negative correlation between DARPP-32 and miR490-3p expression (R = -0.58, P < 0.01). This was also detected following infection with H. pylori (R = -0.66, P < 0.01). Molecular assays confirmed DARPP-32 as a direct target of miR490-3p. CHRM2, the host gene of miR490-3p, was hypermethylated and downregulated in neoplastic gastric tissues (P < 0.05). H. pylori induced methylation and downregulation of CHRM2 and miR490-3p. Functionally, the reconstitution of miR490-3p sensitized cancer cells to gefitinib by inactivating DRAPP-32-dependent AKT and STAT3 pathways. Patients with low miR490-3p or high DARPP-32 expression had decreased overall survival (P < 0.05). Hypermethylation-mediated silencing of CHRM2 and miR490-3p by H. pylori increased DARPP-32 expression. Downregulation of miR490-3p in gastric cancer plays a role in gefitinib response by inducing DARPP-32-mediated activation of PI3K/AKT, STAT3 signaling pathways.
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Affiliation(s)
- Shoumin Zhu
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA.
| | - Shayan Khalafi
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA.
| | - Zheng Chen
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA; Department of Veterans Affairs, Miami Healthcare System, Miami, FL, USA.
| | - Julio Poveda
- Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA.
| | - Dunfa Peng
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA.
| | - Heng Lu
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA.
| | - Mohammed Soutto
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA; Department of Veterans Affairs, Miami Healthcare System, Miami, FL, USA.
| | - Jianwen Que
- Department of Medicine, Columbia University Medical Center, New York, NY, USA.
| | | | - Alexander Zaika
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA; Department of Veterans Affairs, Miami Healthcare System, Miami, FL, USA
| | - Wael El-Rifai
- Department of Surgery and Department of Pathology, Miler School of Medicine, University of Miami, Miami, FL, USA; Department of Veterans Affairs, Miami Healthcare System, Miami, FL, USA.
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Gymnopoulos M, Betancourt O, Blot V, Fujita R, Galvan D, Lieuw V, Nguyen S, Snedden J, Stewart C, Villicana J, Wojciak J, Wong E, Pardo R, Patel N, D'Hooge F, Vijayakrishnan B, Barry C, Hartley JA, Howard PW, Newman R, Coronella J. TR1801-ADC: a highly potent cMet antibody-drug conjugate with high activity in patient-derived xenograft models of solid tumors. Mol Oncol 2019; 14:54-68. [PMID: 31736230 PMCID: PMC6944112 DOI: 10.1002/1878-0261.12600] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 10/23/2019] [Accepted: 11/14/2019] [Indexed: 12/13/2022] Open
Abstract
cMet is a well‐characterized oncogene that is the target of many drugs including small molecule and biologic pathway inhibitors, and, more recently, antibody–drug conjugates (ADCs). However, the clinical benefit from cMet‐targeted therapy has been limited. We developed a novel cMet‐targeted ‘third‐generation’ ADC, TR1801‐ADC, that was optimized at different levels including specificity, stability, toxin–linker, conjugation site, and in vivo efficacy. Our nonagonistic cMet antibody was site‐specifically conjugated to the pyrrolobenzodiazepine (PBD) toxin–linker tesirine and has picomolar activity in cancer cell lines derived from different solid tumors including lung, colorectal, and gastric cancers. The potency of our cMet ADC is independent of MET gene copy number, and its antitumor activity was high not only in high cMet‐expressing cell lines but also in medium‐to‐low cMet cell lines (40 000–90 000 cMet/cell) in which a cMet ADC with tubulin inhibitor payload was considerably less potent. In vivo xenografts with low–medium cMet expression were also very responsive to TR1801‐ADC at a single dose, while a cMet ADC using a tubulin inhibitor showed a substantially reduced efficacy. Furthermore, TR1801‐ADC had excellent efficacy with significant antitumor activity in 90% of tested patient‐derived xenograft models of gastric, colorectal, and head and neck cancers: 7 of 10 gastric models, 4 of 10 colorectal cancer models, and 3 of 10 head and neck cancer models showed complete tumor regression after a single‐dose administration. Altogether, TR1801‐ADC is a new generation cMet ADC with best‐in‐class preclinical efficacy and good tolerability in rats.
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Affiliation(s)
| | | | - Vincent Blot
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Ryo Fujita
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Diana Galvan
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Vincent Lieuw
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Sophie Nguyen
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | | | | | - Jose Villicana
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Jon Wojciak
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Eley Wong
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Raul Pardo
- Spirogen, a member of the AstraZeneca Group, London, UK
| | - Neki Patel
- Spirogen, a member of the AstraZeneca Group, London, UK
| | | | | | - Conor Barry
- Spirogen, a member of the AstraZeneca Group, London, UK
| | | | | | - Roland Newman
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
| | - Julia Coronella
- Tanabe Research Laboratories U.S.A., Inc., San Diego, CA, USA
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5
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Kentepozidis N, Economopoulou P, Liontos M, Kotsakis A, Boukovinas I, Vardakis N, Kontopodis E, Prinarakis E, Skaltsi T, Souglakos J, Georgoulias V. Panitumumab in combination with modified docetaxel/cisplatin/5-fluorouracil as first-line treatment in gastric and gastroesophageal junction adenocarcinomas: a multicenter phase II study by the Hellenic Oncology Research Group. Ann Gastroenterol 2018; 31:698-704. [PMID: 30386120 PMCID: PMC6191861 DOI: 10.20524/aog.2018.0311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/29/2018] [Indexed: 12/21/2022] Open
Abstract
Background A phase I/II study to define the maximum tolerated dose (MTD) of biweekly docetaxel/cisplatin/5-fluorouracil (DCF) plus panitumumab (P), its efficacy, and tolerability as first-line treatment in advanced gastroesophageal cancer. Methods In phase I part, patients with unresectable locally advanced or metastatic adenocarcinomas of the stomach or the gastroesophageal junction received cisplatin (40 mg/m2 on day 1), leucovorin (400 mg/m2 on day 1), 5-fluorouracil (400 mg/m2 bolus on day 1), 5-fluorouracil (1000 mg/m2/daycontinuous infusion on days 1-2), and escalated doses of docetaxel (on day 1) plus P (6 mg/kg on day 1) every 2 weeks. In phase II part, patients were treated with DCF/P at the MTD and the primary endpoint was response rate. The expected response rate was set at >40%. Results The MTD for docetaxel in the mDCF/P was defined at 40 mg/m2 and a total of 40 evaluable patients were enrolled in phase II study. One (2.5%) complete and 13 (32.5%) partial responses (overall response rate: 35%), as well as 16 (40%) disease stabilizations were documented. The median progression-free survival was 6.9 months (95% confidence interval [CI] 3.5-10.3) and the median overall survival was 11.3 months (95%CI 7.7-14.8). Grade 3-4 neutropenia occurred in 10 patients (25%) and febrile neutropenia in 2 (5%). Allergic reactions (grade 1-4) occurred in 9 patients (22.5%). There was 1 treatment-related death. Conclusions mDCF/P combination was feasible, though associated with a poor toxicity profile. However, the study failed to meet its primary endpoint and was terminated prematurely due to futility.
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Ma S, Fan L, Liu Y, Wang Y, Yu K, Wang L, Fang N, Liu F, Guo S, Wang Z. MET-overexpressing myxofibrosarcoma frequently exhibit polysomy of chromosome 7 but not MET amplification, especially in high-grade cases: clinical and pathological review of 30 myxofibrosarcoma cases. Diagn Pathol 2018; 13:56. [PMID: 30126419 PMCID: PMC6102798 DOI: 10.1186/s13000-018-0733-9] [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: 02/26/2018] [Accepted: 07/30/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Myxofibrosarcoma (MFS) is one of the most common soft tissue sarcomas. Previous studies have shown that MET protein overexpressed in MFS patients and can serve as a prognostic factor. The reasons for MET protein overexpression include amplification of the MET gene, which is located on chromosome 7q. Triggered by an index case harboring chromosome 7 polysomy rather than MET gene amplification in myxofibrosarcoma, we investigated chromosome 7 polysomy in more cases. METHODS Immunohistochemistry and fluorescence in situ hybridization (FISH) were performed in 30 MFS cases (including 2 epithelioid variant) to detect the expression of MET protein and gene status. RESULTS MET was overexpressed in 14 cases out of 30, while thirteen cases were in higher FNCLCC grades (Grade 2-3). FISH showed that 11 cases having 3 signals on average of Met and more than 3 signals (Mean: 4.6) of centromere 7q (CEP7q). The MET/CEP7 ratio was about 0.65 on average, suggesting that chromosome 7 polysomy, rather than Met gene amplification, leading to the overexpression of MET protein in MFS. MET overexpression and chromosome 7 polysomy are positively correlated with higher Ki-67 index and higher grade and might have a high risk of local recurrence and metastasis. CONCLUSIONS It might reveals another explain of MET overexpression in myxofibrosarcoma, providing a clue for the therapy of MFS.
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Affiliation(s)
- Shirong Ma
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China
| | - Linni Fan
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China
| | - Yixiong Liu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China
| | - Kangjie Yu
- Student Team 1, Class 3, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China
| | - Lifeng Wang
- Department of Pathology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road #1665, Shanghai, 200092, China
| | - Na Fang
- Department of Pathology, Hubei Provincial Cancer hospital, Zhuodaoquan South Road #116, Wuhan, 430079, China
| | - Fang Liu
- Department of Pathology, Affiliated Foshan hospital, Sun Yet-sen University, Lingnan North Road#81, Foshan, 528000, China
| | - Shuangping Guo
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China
| | - Zhe Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, West Road #169, Xi'an, Changle, 710032, China.
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Ji Y, Sun Q, Zhang J, Hu H. MiR-615 inhibits cell proliferation, migration and invasion by targeting EGFR in human glioblastoma. Biochem Biophys Res Commun 2018; 499:719-726. [PMID: 29605294 DOI: 10.1016/j.bbrc.2018.03.217] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 03/29/2018] [Indexed: 02/07/2023]
Abstract
MiR-615 and epidermal growth factor receptor (EGFR) are associated with a number of disease processes and pathogenesis. However, little is known about the mechanisms of miR-615 and EGFR in human glioblastoma multiforme (GBM). Here, we found that down-regulation of miR-615 expression occurred in GBM tissues and cells, and was inversely correlated with overall survival, relapse-free survival, WHO grade as well as EGFR expression. We further determined that miR-615 functions as a tumor suppressor by inhibiting GBM cell proliferation, cell cycle, migration and invasion, and promoting cell apoptosis. In-vivo assay validated the inhibition effect of miR-615 on tumor growth and EGFR expression. Luciferase reporter assays demonstrated that miR-615 targeted the 3'-untranslated region (3'-UTR) of EGFR. Besides, over-expression of EGFR reversed the inhibition effects of miR-615, while silencing of EGFR aggravated these inhibition effects. In conclusions, we identified that miR-615 plays a tumor suppressor role in GBM cell proliferation, migration and invasion by targeting EGFR expression, and miR-615 may act as a novel biomarker for early diagnosis or therapeutic targets of GBM.
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Affiliation(s)
- Yanwei Ji
- Department of Neurosurgery, Shandong Provincial Third Hospital, No.12, Central Wuying Hill Road, Jinan 250031, Shandong, China
| | - Qingshan Sun
- Department of Orthopedics, Shandong Provincial Third Hospital, No.12, Central Wuying Hill Road, Jinan 250031, Shandong, China
| | - Jianbin Zhang
- Department of Neurosurgery, Shandong Provincial Third Hospital, No.12, Central Wuying Hill Road, Jinan 250031, Shandong, China
| | - Haoran Hu
- Department of Gerontology, Shandong Provincial Third Hospital, No.12, Central Wuying Hill Road, Jinan 250031, Shandong, China.
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8
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Zhang Z, Tang H, Lin J, Hu Y, Luo G, Luo Z, Cheng C, Wang P. Clinicopathologic and prognostic significance of human epidermal growth factor receptor in patients with gastric cancer: An updated meta-analysis. Oncotarget 2017; 8:17202-17215. [PMID: 28199988 PMCID: PMC5370033 DOI: 10.18632/oncotarget.15231] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 01/06/2017] [Indexed: 12/12/2022] Open
Abstract
Purpose The aim of this update meta-analysis was to clarify the clinicopathologic and prognostic significance of human epidermal growth factor receptor(EGFR) expression in gastric cancer patients. Experimental Design Several electronic databases were searched from January 1970 to May 2016. The odds ratio (OR) was calculated to assess the association between EGFR expression and pathological parameters. The hazard ratio (HR) and 95% CI were calculated to explore the relationship between EGFR expression and overall survival. Results Finally 7229 patients with gastric cancer from 25 eligible studies were included in the present meta analysis. High EGFR expression was found to be significantly related with tumor differentiation (OR=1.96, 95%CI: 1.14-3.34, Z=2.43, P=0.015), lymph node metastasis (OR=2.20, 95% CI: 1.63-2.96, Z=5.17, P=0.001), and tumor stage (OR=2.13, 95% CI: 1.35-3.36, Z=3.25, P=0.001). However, high EGFR expression was not significantly associated with invasion depth (OR=2.09, 95% CI: 0.4-11.05, Z=0.87, P=0.385). The pooled HR suggested that high EGFR expression was significantly correlated with overall survival (HR=1.19, 95% CI 1.04-1.37, Z=2.44, P=0.015). Conclusions The present meta-analysis demonstrated that high EGFR expression significantly predicts poor prognosis, suggesting that high EGFR expression may serve as a predictive biomarker for poor prognosis in patients with gastric cancer.
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Affiliation(s)
- Zhiqiao Zhang
- Department of Infectious Disease, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Hongfeng Tang
- Department of Science and Education, The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Jixin Lin
- Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Yunzhao Hu
- Department of Infectious Disease, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Guanying Luo
- Department of Infectious Disease, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Zhaowen Luo
- Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Canchang Cheng
- Department of Infectious Disease, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Peng Wang
- Department of Infectious Disease, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Hospital Affiliated to The First People's Hospital of Shunde, Shunde, Guangdong, China
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9
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Pyo JS, Kang G, Cho H. Clinicopathological Significance and Diagnostic Accuracy of c-MET Expression by Immunohistochemistry in Gastric Cancer: A Meta-Analysis. J Gastric Cancer 2016; 16:141-151. [PMID: 27752391 PMCID: PMC5065943 DOI: 10.5230/jgc.2016.16.3.141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/09/2016] [Accepted: 06/10/2016] [Indexed: 12/20/2022] Open
Abstract
PURPOSE The aim of the present study was to elucidate the clinicopathological significance and diagnostic accuracy of immunohistochemistry (IHC) for determining the mesenchymal epidermal transition (c-MET) expression in patients with gastric cancer (GC). MATERIALS AND METHODS The present meta-analysis investigated the correlation between c-MET expression as determined by IHC and the clinicopathological parameters in 8,395 GC patients from 37 studies that satisfied the eligibility criteria. In addition, a concordance analysis was performed between c-MET expression as determined by IHC and c-MET amplification, and the diagnostic test accuracy was reviewed. RESULTS The estimated rate of c-MET overexpression was 0.403 (95% confidence interval [CI], 0.327~0.484) and it was significantly correlated with male patients, poor differentiation, lymph node metastasis, higher TNM stage, and human epidermal growth factor receptor 2 (HER2) positivity in IHC analysis. There was a significant correlation between c-MET expression and worse overall survival rate (hazard ratio, 1.588; 95% CI, 1.266~1.992). The concordance rates between c-MET expression and c-MET amplification were 0.967 (95% CI, 0.916~0.987) and 0.270 (95% CI, 0.173~0.395) for cases with non-overexpressed and overexpressed c-MET, respectively. In the diagnostic test accuracy review, the pooled sensitivity and specificity were 0.56 (95% CI, 0.50~0.63) and 0.79 (95% CI, 0.77~0.81), respectively. CONCLUSIONS The c-MET overexpression as determined by IHC was significantly correlated with aggressive tumor behavior and positive IHC status for HER2 in patients with GC. In addition, the c-MET expression status could be useful in the screening of c-MET amplification in patients with GC.
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Affiliation(s)
- Jung-Soo Pyo
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Guhyun Kang
- Department of Pathology, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Hyunjin Cho
- Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea
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