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Deng RR, Yuan YP. Ropivacaine inhibits the proliferation and metastasis of gastric cancer cells via the SNX10/SRC/STAT3 pathway. Chem Biol Drug Des 2024; 103:e14405. [PMID: 37989501 DOI: 10.1111/cbdd.14405] [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] [Received: 07/24/2023] [Revised: 10/13/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Gastric cancer currently has no effective treatment due to its high metastasis and heterogeneity. It has been reported that ropivacaine (Rop) can inhibit the growth, migration, and invasion of gastric cancer. However, the therapeutic mechanism of Rop still needs to be further explored to provide insights for its clinical application. This study aimed to explore the effects of Rop on the growth, migration, and invasion of gastric cancer cells and the underlying mechanisms. The expression levels of SNX10 were assessed in gastric cancer tissues and cell line AGS by qRT-PCR. Cell Counting Kit-8 (CCK8) assay, wound-healing assay, and transwell assay were then used to examine the effects of Rop on the AGS cell viability, migration, invasion, and proliferation, respectively. Additionally, colony formation assay was used to measure cell proliferation ability, and flow cytometry was used to detect apoptosis level. Protein levels of SNX10, SRC, and STAT3 were detected by western blot. According to the experimental results, the decreased SNX10 mRNA expression was observed in gastric cancer tissue and cell line AGS. Rop inhibited the proliferation, migration, and invasion of AGS cells, but promoted apoptosis and upregulated SNX10 expression. Moreover, Rop inhibited the expression of MMP-2 and MMP-9, phosphorylation of SRC and STAT3. SNX10 knockdown could reverse Rop-induced anticancer effects. Collectively, Rop showed a potential role in preventing proliferation and metastasis of gastric cancer. The action mechanism of Rop may be related to the upregulation of SNX10 expression and further inhibition of SRC/STAT3 signaling pathway. Our findings provide new insights into the anticancer properties of Rop.
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Affiliation(s)
- Rong-Rong Deng
- Department of Anaesthesiology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, China
- Department of Anaesthesiology, The Wujin Clinical College of Xuzhou Medical University, Changzhou, China
| | - You-Ping Yuan
- Department of Anaesthesiology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, China
- Department of Anaesthesiology, The Wujin Clinical College of Xuzhou Medical University, Changzhou, China
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Chen Z, Xiao Y, Yang P, Wang R. Pan-cancer Analysis Reveals SRC May Link Lipid Metabolism and Macrophages. IRANIAN JOURNAL OF BIOTECHNOLOGY 2023; 21:e3325. [PMID: 37228626 PMCID: PMC10203188 DOI: 10.30498/ijb.2023.335402.3325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 11/09/2022] [Indexed: 05/27/2023]
Abstract
Background SRC is a member of the membrane-associated non-receptor protein tyrosine kinase superfamily. It has been reported to mediate inflammation and cancer. However, the exact molecular mechanism involved is still not clear. Objectives The current study was designed to explore the prognostic landscape of SRC and further investigate the relationship between SRC and immune infiltration in pan-cancer. Materials and Methods Kaplan-Meier Plotter was used to detect the prognostic value of SRC in pan-cancer. Then using TIMER2.0 and CIBERSORT, the relationship between SRC and immune infiltration in pan-cancer was evaluated. Furthermore, the LinkedOmics database was used to screen SRC co-expressed genes, followed by functional enrichment of SRC co-expressed genes by Metascape online tool. STRING database and Cytoscape software were applied to construct and visualise the protein-protein interaction network of SRC co-expressed genes. MCODE plug-in was used to screen hub modules in the PPI network. The SRC co-expressed genes in hub modules were extracted, and the correlation analysis between interested SRC co-expressed genes and immune infiltration was conducted via TIMER2.0 and CIBERSORT. Results Our study demonstrated that SRC expression was significantly associated with overall survival and relapse-free survival in multiple cancer types. In addition, SRC expression was significantly correlated with the immune infiltration of B cells, dendritic cells, CD4+ T cells, macrophages, and neutrophils in pan-cancer. The expression of SRC had shown to have close correlations with M1 macrophage polarisation in LIHC, TGCT, THCA, and THYM. Moreover, the genes that co-expressed with SRC in LIHC, TGCT, THCA, and THYM were mainly enriched in lipid metabolism. Besides, correlation analysis showed that SRC co-expressed genes associated with lipid metabolism were also significantly correlated with the infiltration and polarisation of macrophages. Conclusion These results indicate that SRC can serve as a prognostic biomarker in pan-cancer and is related to macrophages infiltration and interacts with genes involved in lipid metabolism.
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Affiliation(s)
- Zhongyuan Chen
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, Hunan, China
- Changde Research Centre for Artificial Intelligence and Biomedicine, Changde, Hunan, China
| | - Yaqian Xiao
- Furong College, Hunan 3Furong College, Hunan University of Arts and Science, Changde, Hunan, China
| | - Pinhong Yang
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, Hunan, China
- Changde Research Centre for Artificial Intelligence and Biomedicine, Changde, Hunan, China
| | - Ruisong Wang
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, Hunan, China
- Changde Research Centre for Artificial Intelligence and Biomedicine, Changde, Hunan, China
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3
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HER2-CDH1 Interaction via Wnt/B-Catenin Is Associated with Patients' Survival in HER2-Positive Metastatic Gastric Adenocarcinoma. Cancers (Basel) 2022; 14:cancers14051266. [PMID: 35267574 PMCID: PMC8909509 DOI: 10.3390/cancers14051266] [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: 12/28/2021] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary A deeper understanding of the molecular mechanisms involved in gastric cacner (GC) pathologenesis would help the identification of prognostic biomarkers and the development of new treatments. Human epidermal growth factor receptor 2 (HER2/ErbB2), a membrane-bound receptor of the EGFR family, may be overexpressed in GC. Trastuzumab is a HER2 inhibitor used to treat HER2+ metastatic gastric cancer (mGC). The present study aims to investigate the relationship between CDH1 mRNA expression and HER2-positivity in mGC using a multiplexed gene expression profile in two series of GC patients: 38 HER2+ and HER2- mGC and 36 HER2- GC with and without metastasis. Our results revealed the relationship between CDH1 and HER2 mRNA expression in mGC via the canonical WNT/β-catenin pathway and identified EGF as an independent prognostic biomarker for survival. Abstract Trastuzumab is a human epidermal growth factor receptor 2 (HER2) inhibitor used to treat HER2+ metastatic gastric cancer (mGC). The present study aims to investigate the relationship between CDH1 mRNA expression and HER2-positivity in mGC using a multiplexed gene expression profile in two series of gastric cancer (GC): Series 1 (n = 38): HER2+ and HER2- mGC; Series 2 (n = 36) HER2- GC with and without metastasis. To confirm the results, the same expression profiles were analyzed in 354 GC from The Cancer Genome Atlas (TCGA) dataset. The difference in gene expression connected HER2 overexpression with canonical wingless-type (Wnt)/β-catenin pathway and immunohistochemical (IHC) expression loss of E-cadherin (E-CAD). CDH1 mRNA expression was simultaneously associated with the rs16260-A variant and an increase in E-CAD expression. Differences in retinoic acid receptor alfa (RARA), RPL19 (coding for the 60S ribosomal L19 protein), catenin delta 1 (CTNND1), and epidermal growth factor (EGF) mRNA levels—all included in the Wnt/β-catenin pathway—were found associated with overall survival (OS). RARA, CTNND1, and EGF resulted in independent OS prognostic factors. EGF was confirmed as an independent factor along with TNM stage in HER2-overpressed mGC from TCGA collection. Our study highlighted factors involved in the WNT/β-catenin pathway that interconnected E-CAD with HER2 overexpression and patient survival.
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An F, Zheng C, Zhang G, Zhou L, Wu Y, Hou Z, Zhou Z, Chen K, Zhan Q. Carcinoembryonic Antigen Related Cell Adhesion Molecule 6 Promotes Carcinogenesis of Gastric Cancer and Anti-CEACAM6 Fluorescent Probe Can Diagnose the Precancerous Lesions. Front Oncol 2021; 11:643669. [PMID: 34221964 PMCID: PMC8248535 DOI: 10.3389/fonc.2021.643669] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/20/2021] [Indexed: 12/16/2022] Open
Abstract
The diagnosis of precancerous lesions or early gastric cancer (EGC) is very important for patient survival. Molecular imaging is a visualized method that can easily and precisely diagnose tumors. However, there are currently few studies about molecular imaging diagnosis of EGC. Here, we studied the expression of carcinoembryonic antigen related cell adhesion molecule 6 (CEACAM6) in the progression of GC. Then, the regulatory roles of CEACAM6 in GC cells were investigated. Furthermore, both the fluorescent-labeled and near infrared molecular-labeled probes were synthesized, and the diagnostic value of anti-CEACAM6 probes in GC was evaluated in vivo using a GC mice model as well as in vitro using fresh dysplastic gastric mucosa obtained from endoscopic submucosal dissection (ESD) operations. Our study showed that CEACAM6 was over expressed in GC tissues compared to adjacent tissues, and the patients with higher CEACAM6 expression had lower survival time. Moreover, the CEACAM6 expression was higher in the dysplastic gastric mucosa than in the adjacent normal mucosa. CEACAM6 accelerated the growth, proliferation, and invasion of GC cells in the in vitro and in vivo studies. Moreover, up regulated CEACAM6 can induce the expression of proteins related to GC progression. Furthermore, the anti-CEACAM6 probes exhibited good affinity with GC cell lines. The probes can track tumors as well as metastases in the mice model in vivo, and can precisely identify the area of dysplastic gastric mucosa using specimens obtained from ESD operations by wide field fluorescent endoscopy. The surface micro features of the mucosa can also be observed using fluorescent micro endoscopy, and the degree of atypia can be distinguished by both the signal intensity and surface micro morphology. CEACAM6 is a key molecular marker in GC progression, and the anti-CEACAM6 probe-assisted fluorescent endoscopy may be a potential option for the diagnosis of precancerous lesions.
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Affiliation(s)
- Fangmei An
- Department of Gastroenterology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Chuwei Zheng
- Department of Gastroenterology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Guoqiang Zhang
- Department of Gastroenterology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Liangyun Zhou
- Department of Gastroenterology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Yuqing Wu
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Zheng Hou
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Zhiyi Zhou
- Department of Pathology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Ke Chen
- Department of Gastroenterology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
| | - Qiang Zhan
- Department of Gastroenterology, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi, China
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Local Anesthetics and Recurrence after Cancer Surgery-What's New? A Narrative Review. J Clin Med 2021; 10:jcm10040719. [PMID: 33670434 PMCID: PMC7918400 DOI: 10.3390/jcm10040719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/27/2021] [Accepted: 02/08/2021] [Indexed: 12/16/2022] Open
Abstract
The perioperative use of regional anesthesia and local anesthetics is part of almost every anesthesiologist’s daily clinical practice. Retrospective analyses and results from experimental studies pointed towards a potential beneficial effect of the local anesthetics regarding outcome—i.e., overall and/or recurrence-free survival—in patients undergoing cancer surgery. The perioperative period, where the anesthesiologist is responsible for the patients, might be crucial for the further course of the disease, as circulating tumor cells (shed from the primary tumor into the patient’s bloodstream) might form new micro-metastases independent of complete tumor removal. Due to their strong anti-inflammatory properties, local anesthetics might have a certain impact on these circulating tumor cells, either via direct or indirect measures, for example via blunting the inflammatory stress response as induced by the surgical stimulus. This narrative review highlights the foundation of these principles, features recent experimental and clinical data and provides an outlook regarding current and potential future research activities.
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Src Family Kinases as Therapeutic Targets in Advanced Solid Tumors: What We Have Learned so Far. Cancers (Basel) 2020; 12:cancers12061448. [PMID: 32498343 PMCID: PMC7352436 DOI: 10.3390/cancers12061448] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/17/2022] Open
Abstract
Src is the prototypal member of Src Family tyrosine Kinases (SFKs), a large non-receptor kinase class that controls multiple signaling pathways in animal cells. SFKs activation is necessary for the mitogenic signal from many growth factors, but also for the acquisition of migratory and invasive phenotype. Indeed, oncogenic activation of SFKs has been demonstrated to play an important role in solid cancers; promoting tumor growth and formation of distant metastases. Several drugs targeting SFKs have been developed and tested in preclinical models and many of them have successfully reached clinical use in hematologic cancers. Although in solid tumors SFKs inhibitors have consistently confirmed their ability in blocking cancer cell progression in several experimental models; their utilization in clinical trials has unveiled unexpected complications against an effective utilization in patients. In this review, we summarize basic molecular mechanisms involving SFKs in cancer spreading and metastasization; and discuss preclinical and clinical data highlighting the main challenges for their future application as therapeutic targets in solid cancer progression
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7
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Zhang W, He R, Chen S, Zhang L, Cao G, Yang W, Li J. The JAM-B/c-src/MMP9 pathway is associated with progression and regulates the invasion of pancreatic cancer. J Cancer 2020; 11:3246-3255. [PMID: 32231730 PMCID: PMC7097935 DOI: 10.7150/jca.40953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 02/10/2020] [Indexed: 12/21/2022] Open
Abstract
Junctional adhesion molecule B (JAM-B) is a multifunctional transmembrane protein that plays an important role in tumor progression. JAM-B is significantly upregulated in gastric cancer, melanoma cell metastasis and oral squamous cell carcinoma. JAM-2 may also function as a putative tumor suppressor in the progression and metastasis of colorectal cancer. The inconsistency of the results in different cancers has led to uncertainty regarding the role of JAM-B in carcinogenesis. For this purpose, the expression levels of JAM-B in pancreatic cancer (PanCa) tissues were associated with T stage and lymph node involvement with significant differences. A relatively high expression of JAM-B was found in PanCa cell lines by immunohistochemistry and western blot analysis. By cell transfection, JAM-B was silenced in tumor cell lines to determine cell invasion and migration abilities. Scratch wound assays and Transwell assays revealed that shJAM-B significantly decreased Panc-1 cell migration and invasion. Experiments were also conducted using a subcutaneous PanCa nude mouse model. A significant difference in tumor diameter at the injection site was found between the control group and the JAM-B low expression group. The expression levels of c-Src and MMP9 were also significantly reduced compared to that in the control group by immunohistochemistry. In conclusion, our results suggest that JAM-B secreted by cancer cells can promote progression and invasion in PanCa by upregulating the c-Src signal and related downstream proteins.
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Affiliation(s)
- Wunai Zhang
- Department of General Surgery, Second Affiliated Hospital, Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Rui He
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China
| | - Shuo Chen
- Department of General Surgery, Second Affiliated Hospital, Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China
| | - Li Zhang
- Department of General Surgery, Second Affiliated Hospital, Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China
| | - Gang Cao
- Department of General Surgery, Second Affiliated Hospital, Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China
| | - Wenbin Yang
- Department of General Surgery, Second Affiliated Hospital, Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China
| | - Junhui Li
- Department of General Surgery, Second Affiliated Hospital, Xi'an Jiaotong University, 157 West 5 th Road, Xi'an, 710004, China
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Feng Z, Yu Q, Zhang T, Tie W, Li J, Zhou X. Updates on mechanistic insights and targeting of tumour metastasis. J Cell Mol Med 2020; 24:2076-2086. [PMID: 31957271 PMCID: PMC7011147 DOI: 10.1111/jcmm.14931] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/15/2019] [Accepted: 12/16/2019] [Indexed: 02/05/2023] Open
Abstract
Malignant tumours are one of the major diseases that seriously endanger human health. The characteristics of their invasion and metastasis are one of the main causes of death in cancer patients, and these features cannot be separated from the participation of various molecules-related cells living in the tumour microenvironment and specific structures. Tumour invasion can approximately be divided into several specific steps according to the movement of tumour cells. In each step, there are different actions in the tumour microenvironment that mediate the interactions among substances. Researchers are attempting to clarify every mechanism of the tumour dissemination. However, there is still a long way to the final determination. Here, we review these interactions in tumour invasion and metastasis at the structural, molecular and cellular levels. We also discuss the ongoing studies and the promise of targeting metastasis in tumour therapy.
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Affiliation(s)
- Zeru Feng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China College of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Qiuxuan Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China College of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Ting Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China College of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Wanpeng Tie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China College of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Jing Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Xikun Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
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Wall TP, Crowley PD, Sherwin A, Foley AG, Buggy DJ. Effects of Lidocaine and Src Inhibition on Metastasis in a Murine Model of Breast Cancer Surgery. Cancers (Basel) 2019; 11:cancers11101414. [PMID: 31546727 PMCID: PMC6826872 DOI: 10.3390/cancers11101414] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/16/2019] [Accepted: 09/19/2019] [Indexed: 12/24/2022] Open
Abstract
Breast cancer recurs in 20% of patients following intended curative resection. In vitro data indicates that amide local anaesthetics, including lidocaine, inhibit cancer cell metastasis by inhibiting the tyrosine kinase enzyme Src. In a murine breast cancer surgery model, systemic lidocaine reduces postoperative pulmonary metastases. We investigated whether the additional administration of bosutinib (a known Src inhibitor) influences lidocaine’s observed beneficial effect in this in vivo model. Female BALB/c mice (n = 95) were inoculated with 25,000 4T1 cells into the mammary fad pad and after 7 days the resulting tumours were excised under sevoflurane anaesthesia. Experimental animals were randomized to one of four treatments administered intravenously prior to excision: lidocaine, bosutinib, both lidocaine and bosutinib in combination, or saline. Animals were euthanized 14 days post-surgery and lung and liver metastatic colonies were evaluated. Post-mortem serum was analysed for MMP-2 and MMP-9, pro-metastatic enzymes whose expression is influenced by the Src pathway. Lidocaine reduced lung, but not liver metastatic colonies versus sevoflurane alone (p = 0.041), but bosutinib alone had no metastasis-inhibiting effect. When combined with lidocaine, bosutinib reversed the anti-metastatic effect observed with lidocaine on sevoflurane anaesthesia. Only lidocaine alone reduced MMP-2 versus sevoflurane (p = 0.044). Both bosutinib (p = 0.001) and bosutinib/lidocaine combined (p = 0.001) reduced MMP-9 versus sevoflurane, whereas lidocaine alone did not. In a murine surgical breast cancer model, the anti-metastatic effects of lidocaine under sevoflurane anaesthesia are abolished by the Src inhibitor bosutinib, and lidocaine reduces serum MMP-2. These results suggest that lidocaine may act, at least partly, via an inhibitory effect on MMP-2 expression to reduce pulmonary metastasis, but whether this is due to an effect on Src or via another pathway remains unclear.
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Affiliation(s)
- Thomas P Wall
- Department of Anaesthesiology & Perioperative Medicine, Mater University Hospital, School of Medicine, University College Dublin, D07 KH4C Dublin, Ireland.
- Conway Institute for Biomolecular and Biomedical Research, School of Medicine University College Dublin, D04 V1W8 Dublin, Ireland.
| | - Peter D Crowley
- Conway Institute for Biomolecular and Biomedical Research, School of Medicine University College Dublin, D04 V1W8 Dublin, Ireland.
| | - Aislinn Sherwin
- Department of Anaesthesiology & Perioperative Medicine, Mater University Hospital, School of Medicine, University College Dublin, D07 KH4C Dublin, Ireland.
| | - Andrew G Foley
- Berand Neuropharmacology Ltd., NovaUCD, D04 V1W8 Dublin, Ireland.
| | - Donal J Buggy
- Department of Anaesthesiology & Perioperative Medicine, Mater University Hospital, School of Medicine, University College Dublin, D07 KH4C Dublin, Ireland.
- Conway Institute for Biomolecular and Biomedical Research, School of Medicine University College Dublin, D04 V1W8 Dublin, Ireland.
- Outcomes Research, Cleveland Clinic, Cleveland, OH 44195, USA.
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10
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Breast cancer invasion and progression by MMP-9 through Ets-1 transcription factor. Gene 2019; 711:143952. [DOI: 10.1016/j.gene.2019.143952] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 01/08/2023]
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11
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Wang K, Zhu X, Mei D, Ding Z. Caveolin-1 contributes to anoikis resistance in human gastric cancer SGC-7901 cells via regulating Src-dependent EGFR-ITGB1 signaling. J Biochem Mol Toxicol 2018; 32:e22202. [PMID: 30088837 DOI: 10.1002/jbt.22202] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 06/26/2018] [Accepted: 07/06/2018] [Indexed: 12/15/2022]
Abstract
Anoikis resistance is considered to be an essential prerequisite of tumor metastasis and which is an important mechanism in the metastatic process of gastric cancer (GC). Caveolin-1 (CAV-1), a protein component of caveolae, has been reported to regulate several cancer cell behaviors including anoikis resistance. However, the role of CAV-1 in the acquisition of anoikis resistance in GC cells has never been explored. In this study, we investigated the promoting effect of CAV-1 on anchorage-independent growth and anoikis resistance, and the involvement of the related signaling pathways in such process in SGC-7901 cells. The results showed that CAV-1 could promote anchorage-independent growth and anoikis resistance in detached SGC-7901 cells, which was associated with the activation of Src-dependent epidermal growth factor receptor-integrin β signaling as well as the phosphorylation of PI3K/Akt and MEK/ERK signaling pathways. The data from this study might contribute to the in-depth understanding of the metastatic mechanism for GC.
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Affiliation(s)
- Ke Wang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, China
| | - Xue Zhu
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, China
| | - Dan Mei
- Department of General Surgery, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
| | - Zhongyang Ding
- Department of General Surgery, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
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12
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Martin A, Yu J, Xiong J, Khalid AB, Katzenellenbogen B, Kim SH, Katzenellenbogen JA, Malaivijitnond S, Gabet Y, Krum SA, Frenkel B. Estrogens and androgens inhibit association of RANKL with the pre-osteoblast membrane through post-translational mechanisms. J Cell Physiol 2017; 232:3798-3807. [PMID: 28213978 DOI: 10.1002/jcp.25862] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 02/16/2017] [Indexed: 12/26/2022]
Abstract
We have recently demonstrated that RUNX2 promoted, and 17β-Estradiol (E2) diminished, association of RANKL with the cell membrane in pre-osteoblast cultures. Here we show that, similar to E2, dihydrotestosterone (DHT) diminishes association of RANKL, and transiently transfected GFP-RANKL with the pre-osteoblast membrane without decreasing total RANKL mRNA or protein levels. Diminution of membrane-associated RANKL was accompanied with marked suppression of osteoclast differentiation from co-cultured pre-osteoclasts, even though DHT increased, not decreased, RANKL concentrations in pre-osteoblast conditioned media. A marked decrease in membrane-associated RANKL was observed after 30 min of either E2 or DHT treatment, and near-complete inhibition was observed by 1 hr, suggesting that the diminution of RANKL membrane association was mediated through non-genomic mechanisms. Further indicating dispensability of nuclear action of estrogen receptor, E2-mediated inhibition of RANKL membrane association was mimicked by an estrogen dendrimer conjugate (EDC) that cannot enter the cell nucleus. Finally, the inhibitory effect of E2 and DHT on RANKL membrane association was counteracted by the MMP inhibitor NNGH, and the effect of E2 (and not DHT) was antagonized by the Src inhibitor SU6656. Taken together, these results suggest that estrogens and androgens inhibit osteoblast-driven osteoclastogenesis through non-genomic mechanism(s) that entail, MMP-mediated RANKL dissociation from the cell membrane.
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Affiliation(s)
- Anthony Martin
- Department of Biochemistry and Molecular Medicine , Keck School of Medicine, University of Southern California, Los Angeles, California.,Institute for Genetic Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Jiali Yu
- Department of Biochemistry and Molecular Medicine , Keck School of Medicine, University of Southern California, Los Angeles, California.,Institute for Genetic Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Jian Xiong
- Department of Biochemistry and Molecular Medicine , Keck School of Medicine, University of Southern California, Los Angeles, California.,Institute for Genetic Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Aysha B Khalid
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee
| | | | - Sung Hoon Kim
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | | | | | - Yankel Gabet
- Sackler Faculty of Medicine, Departments of Anatomy and Anthropology and Orthopedic Surgery, Tel Aviv University, Tel Aviv, Israel
| | - Susan A Krum
- Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Baruch Frenkel
- Department of Biochemistry and Molecular Medicine , Keck School of Medicine, University of Southern California, Los Angeles, California.,Department of Orthopedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California
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13
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Qiao H, He X, Zhang Q, Zhang N, Li L, Hui Y, Li W, Wang D, Wu Z. Α-synuclein induces microglial cell migration through stimulating HIF-1α accumulation. J Neurosci Res 2017; 95:1809-1817. [PMID: 28134982 DOI: 10.1002/jnr.24012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 11/28/2016] [Accepted: 12/12/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Hongfei Qiao
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Xijing He
- Departments of Orthopedics; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Qiaojun Zhang
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Ni Zhang
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Libo Li
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Yanping Hui
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Wenjuan Li
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Dong Wang
- Departments of Orthopedics; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
| | - Zhonghen Wu
- Departments of Rehabilitation Medicine; the Second Affiliated Hospital of Xi’an Jiaotong University; Xi’an China
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14
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Kwon OS, An S, Kim E, Yu J, Hong KY, Lee JS, Jang SK. An mRNA-specific tRNAi carrier eIF2A plays a pivotal role in cell proliferation under stress conditions: stress-resistant translation of c-Src mRNA is mediated by eIF2A. Nucleic Acids Res 2016; 45:296-310. [PMID: 27899592 PMCID: PMC5224483 DOI: 10.1093/nar/gkw1117] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 10/24/2016] [Accepted: 10/28/2016] [Indexed: 12/14/2022] Open
Abstract
c-Src, a non-receptor protein tyrosine kinase, activates NF-κB and STAT3, which in turn triggers the transcription of anti-apoptosis- and cell cycle-related genes. c-Src protein regulates cell proliferation, cell motility and programmed cell death. And the elevated level of activated c-Src protein is related with solid tumor generation. Translation of c-Src mRNA is directed by an IRES element which mediates persistent translation under stress conditions when translation of most mRNAs is inhibited by a phosphorylation of the alpha subunit of eIF2 carrying the initiator tRNA (tRNAi) to 40S ribosomal subunit under normal conditions. The molecular basis of the stress-resistant translation of c-Src mRNA remained to be elucidated. Here, we report that eIF2A, an alternative tRNAi carrier, is responsible for the stress-resistant translation of c-Src mRNA. eIF2A facilitates tRNAi loading onto the 40S ribosomal subunit in a c-Src mRNA-dependent manner. And a direct interaction between eIF2A and a stem-loop structure (SL I) in the c-Src IRES is required for the c-Src IRES-dependent translation under stress conditions but not under normal conditions. Finally, we showed that the eIF2A-dependent translation of c-Src mRNA plays a pivotal role in cell proliferation under stress conditions.
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Affiliation(s)
- Oh Sung Kwon
- Molecular Virology Laboratory, POSTECH Biotech Center, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Sihyeon An
- Molecular Virology Laboratory, POSTECH Biotech Center, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Eunah Kim
- Molecular Virology Laboratory, POSTECH Biotech Center, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Jinbae Yu
- Molecular Virology Laboratory, POSTECH Biotech Center, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Ka Young Hong
- Molecular Virology Laboratory, POSTECH Biotech Center, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Jae Seung Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, Korea
| | - Sung Key Jang
- Molecular Virology Laboratory, POSTECH Biotech Center, Department of Life Sciences, Pohang University of Science and Technology, Pohang, Korea .,Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, Korea
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15
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Wu X, Yang L, Zheng Z, Li Z, Shi J, Li Y, Han S, Gao J, Tang C, Su L, Hu D. Src promotes cutaneous wound healing by regulating MMP-2 through the ERK pathway. Int J Mol Med 2016; 37:639-48. [PMID: 26821191 PMCID: PMC4771097 DOI: 10.3892/ijmm.2016.2472] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 01/22/2016] [Indexed: 12/21/2022] Open
Abstract
Wound healing is a highly orchestrated, multistep process, and delayed wound healing is a significant symptomatic clinical problem. Keratinocyte migration and re-epithelialization play the most important roles in wound healing, as they determine the rate of wound healing. In our previous study, we found that Src, one of the oldest proto-oncogenes encoding a membrane-associated, non-receptor protein tyrosine kinase, promotes keratinocyte migration. We therefore hypothesized that Src promotes wound healing through enhanced keratinocyte migration. In order to test this hypothesis, vectors for overexpressing Src and small interfering RNAs (siRNAs) for silencing of Src were used in the present study. We found that the overexpression of Src accelerated keratinocyte migration in vitro and promoted wound healing in vivo without exerting a marked effect on cell proliferation. The extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) signaling pathways play important roles in Src-accelerated keratinocyte migration. Further experiments demonstrated that Src induced the protein expression of matrix metallopro-teinase-2 (MMP-2) and decreased the protein expression of E-cadherin. We suggest that ERK signaling is involved in the Src-mediated regulation of MMP-2 expression. The present study provided evidence that Src promotes keratinocyte migration and cutaneous wound healing, in which the regulation of MMP-2 through the ERK pathway plays an important role, and thus we also demonstrated a potential therapeutic role for Src in cutaneous wound healing.
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Affiliation(s)
- Xue Wu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Longlong Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhao Zheng
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhenzhen Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jihong Shi
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yan Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Shichao Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jianxin Gao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Chaowu Tang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Linlin Su
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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16
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Wang X, Zhang Y, Jiang L, Zhou F, Zhai H, Zhang M, Wang J. Interpreting the distinct and shared genetic characteristics between Epstein-Barr virus associated and non-associated gastric carcinoma. Gene 2015; 576:798-806. [PMID: 26584536 DOI: 10.1016/j.gene.2015.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 11/06/2015] [Accepted: 11/10/2015] [Indexed: 12/26/2022]
Abstract
Gastric carcinoma is one of the major causes of cancer mortality worldwide. There is a better prognosis for patients with Epstein-Barr virus (EBV)-associated gastric carcinoma (EBVaGC) compared with those with EBV negative gastric carcinoma (EBVnGC). It is partly due to the fact that EBV infection recruits lymphocytes infiltrating the tumor. It has been reported that this infection indeed resulted in the changes in immune response genes and thus preventing the development of tumor. It is worthwhile to do a systematic study of EBVaGC and EBVnGC based on genetic characteristics and pathways. In this study, we investigated the information of gene ontology (GO) and KEGG pathway annotations to characterize EBVaGC and EBVnGC-related genes. By applying minimum redundancy maximum relevance (mRMR) algorithm, we provided an optimal set of features for identifying the EBVaGC and EBVnGC. We also employed the shortest path algorithm to probe the novel EBVaGC- and EBVnGC-related genes based on the interaction network of genes that differently expressed in them respectively. We obtained 1039 and 1003 features to identify these two types of gastric carcinoma respectively. Based on the optimal features of classification, we predicted 1881 and 2475 novel genes as additional candidates to support clinical research respectively for these two types of gastric cancers. We compared the differences and similarities of molecular traits between EBVaGC and EBVnGC, which would facilitate the understanding of gastric cancer and its therapy and was thus clinically relevant.
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Affiliation(s)
- Xixun Wang
- Department of Abodomenal Surgery, Yantai Yuhuangding Hospital, Shandong, PR China
| | - Yifei Zhang
- Department of Abodomenal Surgery, Yantai Yuhuangding Hospital, Shandong, PR China
| | - Lixin Jiang
- Department of Abodomenal Surgery, Yantai Yuhuangding Hospital, Shandong, PR China
| | - Furun Zhou
- Department of Gastroenterology, Yantai Yuhuangding Hospital, Shandong, PR China
| | - Huiyuan Zhai
- Department of Abodomenal Surgery, Yantai Yuhuangding Hospital, Shandong, PR China
| | - Menglai Zhang
- Department of Abodomenal Surgery, Yantai Yuhuangding Hospital, Shandong, PR China
| | - Jinglin Wang
- Department of Emergency Center, Yantai Yuhuangding Hospital, Shandong, PR China.
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17
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Wu H, Wang W, Tong S, Wu C. Nucleostemin regulates proliferation and migration of gastric cancer and correlates with its malignancy. Int J Clin Exp Med 2015; 8:17634-17643. [PMID: 26770353 PMCID: PMC4694253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/15/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the effects of nucleostemin (NS) knocking down in SGC- 7901 gastric cancer cell line and investigates its correlation with the metastasis and TNM stage ingastric cancer (GC) patients. METHODS NS expression was assessed using immunohistochemistry in 421 patients with GC. The correlation between NS expression, clinicopathological features and prognosis was analyzed. NS gene silencing was performed using a specific small interfering RNA (NS-siRNA). The gene expression level of NS was evaluated by PCR. The viability and growth rate of SGC-7901 cells were determined by trypan blue exclusion test. Cell cycle distribution of the cells was analyzed by flow cytometry. RESULTS High NS expression was correlated with node metastasis, distant metastasis and TNM stage. Kaplan-Meier survival analysis revealed that patients with low NS expression had significantly longer survival than those with high NS expression. Moreover, our results showed that NS knocking down inhibited proliferation and viability of SGC-7901 cells in a time-dependent manner. Cell cycle studies revealed that NS depletion resulted in G1 cell cycle arrest at short times of transfection (24 h) followed with apoptosis at longer times (48 and 72 h), suggest that post-G1 arrest apoptosis is occurred in SGC-7901 cells. CONCLUSION Overall, these results point to essential role of NS in SGC-7901 cells, thus, this gene might be considered as a promising target for treatment of GC.
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Affiliation(s)
- Hongxue Wu
- Department of Gastrointestinal, Renmin Hospital of Wuhan University Wuhan, Hubei Province, P. R. China
| | - Weixing Wang
- Department of Gastrointestinal, Renmin Hospital of Wuhan University Wuhan, Hubei Province, P. R. China
| | - Shilun Tong
- Department of Gastrointestinal, Renmin Hospital of Wuhan University Wuhan, Hubei Province, P. R. China
| | - Chong Wu
- Department of Gastrointestinal, Renmin Hospital of Wuhan University Wuhan, Hubei Province, P. R. China
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18
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Mello AA, Leal MF, Rey JA, Pinto GR, Lamarão LM, Montenegro RC, Alves APNN, Assumpção PP, Borges BDN, Smith MC, Burbano RR. Deregulated Expression of SRC, LYN and CKB Kinases by DNA Methylation and Its Potential Role in Gastric Cancer Invasiveness and Metastasis. PLoS One 2015; 10:e0140492. [PMID: 26460485 PMCID: PMC4604160 DOI: 10.1371/journal.pone.0140492] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/25/2015] [Indexed: 12/29/2022] Open
Abstract
Kinases are downstream modulators and effectors of several cellular signaling cascades and play key roles in the development of neoplastic disease. In this study, we aimed to evaluate SRC, LYN and CKB protein and mRNA expression, as well as their promoter methylation, in gastric cancer. We found elevated expression of SRC and LYN kinase mRNA and protein but decreased levels of CKB kinase, alterations that may have a role in the invasiveness and metastasis of gastric tumors. Expression of the three studied kinases was also associated with MYC oncogene expression, a possible biomarker for gastric cancer. To understand the mechanisms that regulate the expression of these genes, we evaluated the DNA promoter methylation of the three kinases. We found that reduced SRC and LYN methylation and increased CKB methylation was associated with gastric cancer. The reduced SRC and LYN methylation was associated with increased levels of mRNA and protein expression, suggesting that DNA methylation is involved in regulating the expression of these kinases. Conversely, reduced CKB methylation was observed in samples with reduced mRNA and protein expression, suggesting CKB expression was found to be only partly regulated by DNA methylation. Additionally, we found that alterations in the DNA methylation pattern of the three studied kinases were also associated with the gastric cancer onset, advanced gastric cancer, deeper tumor invasion and the presence of metastasis. Therefore, SRC, LYN and CKB expression or DNA methylation could be useful markers for predicting tumor progression and targeting in anti-cancer strategies.
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Affiliation(s)
- Adriano Azevedo Mello
- Centro de Ciências Biológicas e da Saúde, Universidade Federal de Campina Grande, Campina Grande, PB, Brazil
| | - Mariana Ferreira Leal
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Departamento de Ortopedia e Traumatologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail:
| | - Juan Antonio Rey
- Laboratorio de Oncogenética Molecular, Hospital Universitario La Paz, Madrid, Madrid, Spain
| | | | - Leticia Martins Lamarão
- Laboratório de Testes de Ácidos Nucleicos, Fundação Centro de Hemoterapia e Hematologia do Pará, Belém, PA, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
| | | | | | - Paulo Pimentel Assumpção
- Núcleo de Pesquisa em Oncologia, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, PA, Brazil
| | - Barbara do Nascimento Borges
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
- Centro de Tecnologia Agropecuária, Instituto Socioambiental e dos Recursos Hídricos, Universidade Federal Rural da Amazônia, Belém, PA, Brazil
| | - Marília Cardoso Smith
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Rommel Rodriguez Burbano
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil
- Núcleo de Pesquisa em Oncologia, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém, PA, Brazil
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19
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Yang Z, Wang R, Zhang T, Dong X. MicroRNA-126 regulates migration and invasion of gastric cancer by targeting CADM1. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:8869-8880. [PMID: 26464628 PMCID: PMC4583860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 07/29/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE The aberrant expression of microRNAs has been demonstrated to play a crucial role in the initiation and progression of gastric cancer (GC). We here aimed to investigate the mechanism of microRNAs in the regulation of GC pathogenesis. METHODS Transwell chambers (8-μM pore size; Costar) were used in the in vitro migration and in vision assay. Dual luciferase reporter gene construct and dual luciferase reporter assay to identify the target of miR-126. CADM1 expression was evaluated by immunohistochemical staining. The clinical manifestations, treatments and survival were collected for statistical analysis. RESULTS Inhibition of miR-126 effectively reduced migration and invasion of gastric cancer cell lines. Bioinformatics and luciferase reporter assay revealed that miR-126 specifically targeted the 3'UTR of cell adhesion molecule 1 (CADM1) and regulated its expression. Down-regulation of CADM1 enhanced migration and invasion of GC cell lines. Furthermore, in tumor tissues obtained from gastric cancer patients, the expression of miR-126 was negatively correlated with CADM1 and the high expression of miR-126 combined with low expression of CADM1 might serve as a risk factor for stage1 gastric cancer patients. CONCLUSIONS Our study showed that miR-126, by down-regulation CADM1, enhances migration and invasion in GC cells.
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Affiliation(s)
- Zhen Yang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Zhengzhou UniversityChina
| | - Ruoming Wang
- Department of General Surgery, First Renmin Hospital of ShangqiuHenan Province, China
| | - Tengteng Zhang
- Department of Cancer, First Renmin Hospital of ShangqiuHenan Province, China
| | - Xinhua Dong
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Zhengzhou UniversityChina
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20
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Shan YQ, Ying RC, Zhou CH, Zhu AK, Ye J, Zhu W, Ju TF, Jin HC. MMP-9 is increased in the pathogenesis of gastric cancer by the mediation of HER2. Cancer Gene Ther 2015; 22:101-7. [PMID: 25633484 DOI: 10.1038/cgt.2014.61] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Revised: 08/28/2014] [Accepted: 08/30/2014] [Indexed: 12/12/2022]
Abstract
Human epidermal growth factor receptor 2 (HER2) overexpression is not only closely associated with the tumor growth, but is also related to tumor invasion. We here aimed to investigate the mechanism of HER2 mediation in the pathogenesis of gastric cancer. The human gastric cancer cell lines SGC-7901, MKN-45, AGS, the immortalized cell line GES-1 derived from normal gastric mucosa. Cell transfection and selection of stable cell lines and the gene and protein levels of HER2 and Matrix metalloproteinase-9 (MMP-9) were examined to determine the molecular relationship between them in the pathogenesis of gastric cancer. The human gastric cancer cell lines SGC-7901, MKN-45, AGS, the immortalized cell line GES-1 derived from normal gastric mucosa. Cell transfection and selection of stable cell lines and the gene and protein levels of HER2 and MMP-9 were examined to determine the molecular relationship between them in the pathogenesis of gastric cancer. We demonstrated that vector-based shRNA significantly knocked down the expression of HER2 and considerably inhibited both the migration and invasion of gastric cancer cells. HER2 knockdown resulted in the downregulation of the expression of MMP-9, whereas HER2 overexpression improved the transcription of MMP-9 through the activation of an MMP-9 promoter. The promoter region of MMP-9 between -2500 and -2000 bp was found to be crucial for the upregulation of HER2-mediated transcription. Furthermore, a truncated promoter (-70 to +63) did not display any transcriptional activity. Cell invasion activity was almost completely inhibited when MMP-9 was knocked down. Conversely, the overexpression of MMP-9 partly rescued the invasion ability of cell strains with knockdown HER2. These findings help further understanding of the molecular mechanisms through which HER2 promotes malignancy, and suggest that targeting both HER2 and MMP-9 may be required to effectively block HER2 signaling in gastric cancer therapy.
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Affiliation(s)
- Y-Q Shan
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - R-C Ying
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - C-H Zhou
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - A-K Zhu
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - J Ye
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - W Zhu
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - T-F Ju
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
| | - H-C Jin
- 1] Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, China [2] Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, China
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Fu YF, Gui R, Liu J. HER-2-induced PI3K signaling pathway was involved in the pathogenesis of gastric cancer. Cancer Gene Ther 2015; 22:145-53. [PMID: 25613482 DOI: 10.1038/cgt.2014.80] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/09/2014] [Accepted: 12/09/2014] [Indexed: 01/02/2023]
Abstract
Human epidermal growth factor receptor-2 (HER-2) overexpression was closely associated with the tumor growth and invasion, we here aimed to investigate the mechanism of HER-2 mediation in the pathogenesis of gastric cancer (GC). We first detected the expression of HER-2 in GC cell line SGC-7901 and then examined the levels of nuclear factor-κB (NF-κB), matrix metalloproteinase-9 (MMP-9) and intercellular adhesion molecule-1 (ICAM-1) and the association between them by molecular methods. Statistical analysis was used to compare the significance. We further detected the possible molecular mechanism involved in their relationship in the SGC-7901 genesis. The MMP-9, NF-κB and secretory type (s-ICAM-1) levels were significantly greater in peripheral blood serum from SGC-7901 than healthy control GES-1 (P<0.01). ICAM-1, MMP-9 and NF-κB mRNA and protein levels were more highly expressed in SGC-7901 than healthy control GES-1. The expression levels of NF-κB, MMP-9 and ICAM-1 were positively related in GC cell line SGC-7901, which was HER-2 positive. The HER-2 positive SGC-7901 secreted more transforming growth factor beta 1 (TGF-β1) and resultantly activated MMP-9 to enhance s-ICAM-1 secretion and further studies showed that phosphatidylinositol-3 kinase (PI3K)/Akt/NF-κB signaling pathway was involved in GC pathogenesis. The GC cells that express the HER-2 oncogene spur the activation of NF-κB that can upregulate the expression of ICAM-1 and induce the expression of MMP-9, which hydrolyzes ICAM-1 into s-ICAM-1 to promote tumor immune escape. TGF-β1-induced PI3K/Akt/NF-κB signaling pathway was involved in the pathogenesis of GC and they could be a new target for cancer therapy. The GC cells that express the HER-2 oncogene spur the activation of NF-κB that can upregulate the expression of ICAM-1 and induce the expression of MMP-9, which hydrolyzes ICAM-1 into s-ICAM-1 to promote tumor immune escape. TGF-β1-induced PI3K/Akt/NF-κB signaling pathway was involved in the pathogenesis of GC and they could be a new target for cancer therapy.
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Affiliation(s)
- Y F Fu
- The Third Xiang-Ya Hospital, Central South University, Changsha, China
| | - R Gui
- The Third Xiang-Ya Hospital, Central South University, Changsha, China
| | - J Liu
- The Third Xiang-Ya Hospital, Central South University, Changsha, China
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22
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MicroRNA let-7b suppresses human gastric cancer malignancy by targeting ING1. Cancer Gene Ther 2015; 22:122-9. [PMID: 25613480 DOI: 10.1038/cgt.2014.75] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 11/23/2014] [Accepted: 11/24/2014] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) are important regulators that play key roles in tumorigenesis and tumor progression. In this study, we investigate whether let-7b acts as a tumor suppressor to inhibit invasion and metastasis in gastric cancers. We analyzed the expression of let-7b in 60 pair-matched gastric neoplastic and adjacent non-neoplastic tissues by quantitative real-time polymerase chain reaction. Functional analysis of let-7b expression was assessed in vitro in gastric cancer cell lines with let-7b precursor and inhibitor. The roles of let-7b in tumorigenesis and tumor metastasis were analyzed using a stable let-7b expression plasmid in nude mice. A luciferase reporter assay was used to assess the effect of let-7b on inhibitor of growth family, member 1 (ING1) expression. Real-time PCR showed decreased levels of let-7b expression in metastatic gastric cancer tissues and cell lines that are potentially highly metastatic. Cell invasion and migration were significantly impaired in GC9811-P and SGC7901-M cell lines after transfection with let-7b mimics. Nude mice with xenograft models of gastric cancer confirmed that let-7b could inhibit gastric cancer metastasis in vivo after transfection by the lentivirus pGCsil-GFP- let-7b. Luciferase reporter assays demonstrated that let-7b directly binds to the 3'-UTR of ING1, and real-time PCR and western blotting further indicated that let-7b downregulated the expression of ING1 at the mRNA and protein levels. Our study demonstrates that overexpression of let-7b in gastric cancer can inhibit invasion and migration of gastric cancer cells through directly targeting the tumor metastasis-associated gene ING1. These findings help clarify the molecular mechanisms involved in gastric cancer metastasis and indicate that let-7b modulation may be a bona fide treatment of gastric cancer.
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