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Wang T, Zhang Y, Taaffe DR, Kim JS, Luo H, Yang L, Fairman CM, Qiao Y, Newton RU, Galvão DA. Protective effects of physical activity in colon cancer and underlying mechanisms: A review of epidemiological and biological evidence. Crit Rev Oncol Hematol 2022; 170:103578. [PMID: 35007701 DOI: 10.1016/j.critrevonc.2022.103578] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/07/2021] [Accepted: 01/05/2022] [Indexed: 12/24/2022] Open
Abstract
Numerous epidemiological studies indicate that physical activity has a protective effect against colon cancer development and progression. Further, the relevant biological mechanisms where physical activity or exercise may improve survival have also been initially examined. In this review, we provide an overview of the epidemiological evidence to date which comprises 16 cohort studies of the effects of physical activity on colon cancer outcomes including cancer recurrence, cancer-specific and overall survival. Moreover, we present four potential mechanisms involving shear pressure, systemic milieu alteration, extracellular vesicles, and immune function by which physical activity and exercise may favorably impact colon cancer. Research currently in progress will provide definitive evidence of survival benefits resulting from exercise and future work will help clarify the role of targeted exercise and the relevant mechanisms involved.
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Affiliation(s)
- Tianzhen Wang
- Department of Pathology, Harbin Medical University, Harbin, 150081, China; Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Ying Zhang
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia; Department of Physiology, Harbin Medical University, Harbin, 150081, China
| | - Dennis R Taaffe
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Jin-Soo Kim
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Hao Luo
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Lirui Yang
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Ciaran M Fairman
- Exercise Science Department, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Yuandong Qiao
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, 150081, China
| | - Robert U Newton
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Daniel A Galvão
- Exercise Medicine Research Institute, Edith Cowan University, Joondalup, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.
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Whole Exome Sequencing Identifies Two Novel Mutations in a Patient with UC Associated with PSC and SSA. Can J Gastroenterol Hepatol 2021; 2021:9936932. [PMID: 34545326 PMCID: PMC8449715 DOI: 10.1155/2021/9936932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 08/24/2021] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Patients diagnosed with ulcerative colitis (UC) associated with primary sclerosis cholangitis (PSC) and sessile serrated adenoma (SSA) are rare. The present study aimed to identify the potential causative gene mutation in a patient with UC associated with PSC and SSA. METHODS DNA was extracted from the blood sample and tissue sample of SSA, followed by the whole exome sequencing (WES) analysis. Bioinformatics analysis was utilized to predict the deleteriousness of the identified variants. Multiple sequence alignment and conserved protein domain analyses were performed using online software. Sanger sequencing was used to validate the identified variants. Expression and diagnostic analysis of identified mutated genes was performed in the GSE119600 dataset (peripheral blood samples of PSC and UC) and GSE43841 dataset (tumor samples of SSA). RESULTS In the present study, a total of 842 single nucleotide variants (SNVs) in 728 genes were identified in the blood sample. Two variants, integrin beta 4 (ITGB4) (c.C2503G; p.P835A) and a mucin 3A (MUC3A) (c.C1019T; p.P340L), were further analyzed. MUC3A was associated with inflammatory bowel disease. Sanger sequence in blood revealed that the ITGB4 mutation was fully cosegregated with the result of WES in the patient. Additionally, a variant, tumor protein p53 gene (TP53) (c.86delA; p.N29Tfs ∗ 15) was identified in the tissue sample of SSA. Compared to that in normal controls, ITGB4 was upregulated in both UC and PSC, MUC3A was, respectively, upregulated and downregulated in PSC and UC, and TP53 was downregulated in SSA. ITGB4 and TP53 had a potential diagnostic value for UC, PSC and SSA. CONCLUSIONS The present study demonstrated that the ITGB4 (c.C2503G; p.P835A) and MUC3A (c.C1019T; p.P340L) mutations may be the potential causative variants in a patient with UC associated with PSC and SSA. TP53 (c.86delA; p.N29Tfs ∗ 15) mutation may be associated with SSA in this patient.
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Wang B, Wang S, Wang W, Liu E, Guo S, Zhao C, Niu J, Zhang Z. Hyperglycemia Promotes Liver Metastasis of Colorectal Cancer via Upregulation of Integrin αvβ6. Med Sci Monit 2021; 27:e930921. [PMID: 34408123 PMCID: PMC8383819 DOI: 10.12659/msm.930921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Diabetes is related to higher risk of multiple cancers. This study aimed to explore the effect and mechanism of diabetes on liver metastasis of CRC. Material/Methods Overall and liver metastasis-free survival in diabetic and non-diabetic CRC patients were compared by Kaplan-Meier analysis. Expression of αvβ6 was detected by immunohistochemistry in clinical specimens. Effects of hyperglycemia on αvβ6 expression in colon cancer cells were assessed by western blot, real-time PCR, and flowcytometry. Effects of hyperglycemia on migration and invasion were demonstrated by Transwell assay. Expression and activity of MMP-9 and MMP-2 were determined by real-time PCR and gelatin zymography. Liver metastatic nodules were counted and β6 expression was detected by western blot in a liver metastasis mouse model. Results CRC patients with diabetes had poorer overall and liver metastasis-free survival, and diabetes was associated with higher αvβ6 expression in CRC specimens. Hyperglycemia promoted the invasion and migration of colon cancer cells, and upregulated the expression and activity of MMP-9, which were attenuated by inhibition of αvβ6. Hyperglycemia upregulated the expression of β6 and cell surface expression of αvβ6, which was reduced by ERK inhibitor. The in vitro results were confirmed in vivo in the mouse model. Conclusions Our study demonstrated the enhancing effect of hyperglycemia on liver metastasis of CRC, and showed that αvβ6 was involved in this process, suggesting that control of glucose levels and inhibition of αvβ6 can reduce the risk of liver metastasis in diabetic CRC patients.
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Affiliation(s)
- Ben Wang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Shanjie Wang
- Department of General Surgery, People's Hospital, Zhangqiu District, Jinan, Shandong, China (mainland)
| | - Wenke Wang
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland)
| | - Enyu Liu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Sen Guo
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Chuanzong Zhao
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Jun Niu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Zongli Zhang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
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Urquiza M, Guevara V, Diaz-Sana E, Mora F. The Role of αvβ6 Integrin Binding Molecules in the Diagnosis and Treatment of Cancer. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200528124936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Peptidic and non-peptidic αvβ6 integrin-binding molecules have been used in
the clinic for detection and treatment of tumors expressing αvβ6 integrin, because this protein
is expressed in malignant epithelial cells of the oral cavity, pancreas, breast, ovary,
colon and stomach carcinomas but it is not expressed in healthy adult tissue except during
wound healing and inflammation. This review focuses on the landscape of αvβ6 integrinbinding
molecules and their use in cancer treatment and detection, and discusses recent
designs for tumor detection, treatment, and immunotherapy. In the last ten years, several
reviews abamp;#945;vβ6 integrin-binding molecules and their role in cancer detection and treatment.
Firstly, this review describes the role of the αvβ6 integrin in normal tissues, how the expression
of this protein is correlated with cancer severity and its role in cancer development. Taking into account
the potential of αvβ6 integrin-binding molecules in detection and treatment of specific tumors, special
attention is given to several high-affinity αvβ6 integrin-binding peptides used for tumor imaging; particularly,
the αvβ6-binding peptide NAVPNLRGDLQVLAQKVART [A20FMDV2], derived from the foot and mouth
disease virus. This peptide labeled with either 18F, 111In or with 68Ga has been used for PET imaging of αvβ6
integrin-positive tumors. Moreover, αvβ6 integrin-binding peptides have been used for photoacoustic and fluorescence
imaging and could potentially be used in clinical application in cancer diagnosis and intraoperative
imaging of αvβ6-integrin positive tumors. Additionally, non-peptidic αvβ6-binding molecules have been designed
and used in the clinic for the detection and treatment of αvβ6-expressing tumors. Anti-αvβ6 integrin antibodies
are another useful tool for selective identification and treatment of αvβ6 (+) tumors. The utility of
these αvβ6 integrin-binding molecules as a tool for tumor detection and treatment is discussed, considering
specificity, sensitivity and serum stability. Another use of the αvβ6 integrin-binding peptides is to modify the
Ad5 cell tropism for inducing oncolytic activity of αvβ6-integrin positive tumor cells by expressing
A20FMDV2 peptide within the fiber knob protein (Ad5NULL-A20). The newly designed oncolytic
Ad5NULL-A20 virotherapy is promising for local and systemic targeting of αvβ6-overexpressing cancers. Finally,
new evidence has emerged, indicating that chimeric antigen receptor (CAR) containing the αvβ6 integrin-
binding peptide on top of CD28+CD3 endodomain displays a potent therapeutic activity in a diverse
repertoire of solid tumor models.
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Affiliation(s)
- Mauricio Urquiza
- Grupo de Investigacion en Hormonas (GIH), Department of Chemistry, National University of Columbia, Cra 30 # 45-03, Bogota, zip code 111321, Colombia
| | - Valentina Guevara
- Grupo de Investigacion en Hormonas (GIH), Department of Chemistry, National University of Columbia, Cra 30 # 45-03, Bogota, zip code 111321, Colombia
| | - Erika Diaz-Sana
- Grupo de Investigacion en Hormonas (GIH), Department of Chemistry, National University of Columbia, Cra 30 # 45-03, Bogota, zip code 111321, Colombia
| | - Felipe Mora
- Grupo de Investigacion en Hormonas (GIH), Department of Chemistry, National University of Columbia, Cra 30 # 45-03, Bogota, zip code 111321, Colombia
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Zhang Z, Gu J, Yin M, Wang D, Ma C, Du J, Lin Z, Hu S, Wang X, Li Y, Tan G, Luo H, Wei G. Establishment and Investigation of a Multiple Gene Expression Signature to Predict Long-Term Survival in Pancreatic Cancer. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1570862. [PMID: 33015155 PMCID: PMC7516738 DOI: 10.1155/2020/1570862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/01/2020] [Indexed: 11/23/2022]
Abstract
Pancreatic cancer remains a lethal type of cancer with poor prognosis. Molecular classification enables in-depth, precise prognostic assessment. This study is aimed at identifying a robust and simple mRNA signature to predict the overall survival (OS) of pancreatic cancer (PC) patients. Differentially expressed genes (DEGs) between 45 paired pancreatic tumor samples and adjacent healthy tissues were selected. For risk determination, a LASSO Cox regression model with DEGs was used to generate the OS-associated risk score formula for the training cohort containing 177 PC patients. Another five independent datasets were used as the testing cohort to determine the predictive efficiency for further validation. In total, 441 DEGs were selected after considering the enrichment of classical pathways, such as EMT, cell cycle, cell adhesion, and PI3K-AKT. A five-gene signature for risk discrimination was established with high efficacy using LASSO Cox regression in the training group. External validation showed that patients identified by the gene expression signature to be in the high-risk group had poorer prognosis compared with the low-risk patients. Further investigation identified the differential epigenetic modification patterns of the five genes, which indicated their roles in tumor progression and their effect on therapy. In conclusion, we constructed a robust five-gene expression signature that could predict the OS of PC patients, offering a new insight for risk discrimination in daily clinical practice.
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Affiliation(s)
- Zhiqiang Zhang
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jiangning Gu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Menghong Yin
- Department of Sports Medicine, Dalian Municipal Central Hospital, Dalian Medical University, Dalian, Liaoning Province, China
| | - Di Wang
- Department of Scientific Research, Eyes & ENT Hospital of Fudan University, Shanghai, China
| | - Chi Ma
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Jian Du
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Zhikun Lin
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Siling Hu
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xuelong Wang
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ying Li
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Guang Tan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Haifeng Luo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Gang Wei
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
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Zhou M, Niu J, Wang J, Gao H, Shahbaz M, Niu Z, Li Z, Zou X, Liang B. Integrin αvβ8 serves as a Novel Marker of Poor Prognosis in Colon Carcinoma and Regulates Cell Invasiveness through the Activation of TGF-β1. J Cancer 2020; 11:3803-3815. [PMID: 32328185 PMCID: PMC7171496 DOI: 10.7150/jca.43826] [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: 01/10/2020] [Accepted: 03/29/2020] [Indexed: 12/24/2022] Open
Abstract
Integrin αvβ8 expressed on tumor cells executes crucial regulatory functions during cell adhesion in the tumor microenvironment and supports the activation of TGF-β1. This study aimed to investigate the expression of integrin αvβ8 and its clinical significance in colon cancer, in addition to its influence on the invasion and migration of cancer cells. Our results showed that integrin αvβ8 was an indicator of progression and poor prognosis in patients with colon cancer. Moreover, integrin αvβ8 significantly promoted the invasion and migration of colon cancer cells by the activation of TGF-β1 and upregulation of metalloproteinase-9. Furthermore, suppression of integrin αvβ8 was found to inhibit the growth of colon cancer in vivo. Our results indicate that integrin αvβ8 promotes tumor invasiveness and the migration of colon cancer through TGF-β1 activation and is a potential prognostic biomarker. This study may provide clues to further understand the manner in which the tumor microenvironment mediates the development of colon cancer and develop strategies for novel therapeutic targets in the prevention and treatment of colon cancer.
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Affiliation(s)
- Mingliang Zhou
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, China
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China
| | - Jun Niu
- Department of Hepatobiliary Surgery, Qilu Hospital, Shandong University, Jinan 250012 Shandong, China
| | - Jinshen Wang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, China
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China
| | - Huijie Gao
- Department of Hepatobiliary Surgery, Qilu Hospital, Shandong University, Jinan 250012 Shandong, China
| | - Muhammad Shahbaz
- Department of Hepatobiliary Surgery, Qilu Hospital, Shandong University, Jinan 250012 Shandong, China
| | - Zhengchuan Niu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 20032, China
| | - Zequn Li
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong, China
| | - Xueqing Zou
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong, China
| | - Benjia Liang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, China
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China
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Integrin αvβ6 mediates epithelial-mesenchymal transition in human bronchial epithelial cells induced by lipopolysaccharides of Pseudomonas aeruginosa via TGF-β1-Smad2/3 signaling pathway. Folia Microbiol (Praha) 2019; 65:329-338. [PMID: 31243731 PMCID: PMC7048708 DOI: 10.1007/s12223-019-00728-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 06/17/2019] [Indexed: 02/07/2023]
Abstract
Lower respiratory tract infection due to Pseudomonas aeruginosa has become increasingly challenging, resulting in a worse morbidity and mortality. Airway remodeling is a common phenomenon in this process, to which epithelial-mesenchymal transition (EMT) may contribute as an important promoter. Previous studies showed that epithelium-specific integrin αvβ6-mediated EMT was involved in pulmonary fibrosis via transforming growth factor-β1 (TGF-β1) signaling, but whether integrin αvβ6 plays a role in the P. aeruginosa-associated airway remodeling remains unknown. BEAS-2B cells were incubated with lipopolysaccharide (LPS) from P. aeruginosa in the presence or the absence of integrin αvβ6-blocking antibodies. Morphologic changes were observed by an inverted microscopy. The EMT markers were detected using Western blotting and immunofluorescence. The activation of TGF-β1-Smad2/3 signaling pathway was assessed. Furthermore, matrix metalloproteinase (MMP)-2 and -9 in the medium were measured using ELISA. P. aeruginosa's LPS decreased the expression of the epithelial marker E-cadherin and promoted the mesenchymal markers, vimentin and α-smooth muscle actin in BEAS-2B cells. The expression of integrin αvβ6 was significantly increased during EMT process. Blocking integrin αvβ6 could attenuate P. aeruginosa's LPS-induced EMT markers' expression via TGF-β1-Smad2/3 signaling pathway. Furthermore, blocking integrin αvβ6 could prevent morphologic changes and oversecretion of MMP-2 and -9. Integrin αvβ6 mediates epithelial-mesenchymal transition in human bronchial epithelial cells induced by lipopolysaccharides of P. aeruginosa via TGF-β1-Smad2/3 signaling pathway and might be a promising therapeutic target for P. aeruginosa-associated airway remodeling.
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Liang B, Li L, Miao R, Wang J, Chen Y, Li Z, Zou X, Zhou M. Expression of Interleukin-6 and Integrin ανβ6 in Colon Cancer: Association with Clinical Outcomes and Prognostic Implications. Cancer Invest 2019; 37:174-184. [PMID: 30982362 DOI: 10.1080/07357907.2019.1597103] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As important factors in the tumor microenvironment, interleukin-6 (IL-6) and integrin ανβ6 play significant roles in accumulating mutations that drive the progression and metastatic capacities of cancer. The aim of this study was to investigate the expression of IL-6 and integrin ανβ6, their clinical significance, as well as their correlation in the colon cancer tissues of 145 cases using immunohistochemistry. Our results showed that IL-6 and integrin ανβ6 are indicators of cancer progression and poor prognosis in patients with colon cancer. Moreover, their relationship may provide clues for further studies on how the tumor microenvironment mediates the development of colon cancer, as well as strategies for the identification of novel therapeutic targets in the prevention and treatment of colon cancer.
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Affiliation(s)
- Benjia Liang
- a Department of Gastrointestinal Surgery , Provincial Hospital Affiliated to Shandong University , Jinan , China
| | - Leping Li
- a Department of Gastrointestinal Surgery , Provincial Hospital Affiliated to Shandong University , Jinan , China
| | - Ruizheng Miao
- a Department of Gastrointestinal Surgery , Provincial Hospital Affiliated to Shandong University , Jinan , China
| | - Jinshen Wang
- a Department of Gastrointestinal Surgery , Provincial Hospital Affiliated to Shandong University , Jinan , China
| | - Yuezhi Chen
- a Department of Gastrointestinal Surgery , Provincial Hospital Affiliated to Shandong University , Jinan , China
| | - Zequn Li
- b Key Laboratory of Cardiovascular Remodeling and Function Research Chinese Ministry of Education and Public Health , Jinan , China
| | - Xueqing Zou
- c Department of Hepatobiliary Surgery , Qilu Hospital Shandong University , Jinan , China
| | - Mingliang Zhou
- a Department of Gastrointestinal Surgery , Provincial Hospital Affiliated to Shandong University , Jinan , China
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Boussadia Z, Lamberti J, Mattei F, Pizzi E, Puglisi R, Zanetti C, Pasquini L, Fratini F, Fantozzi L, Felicetti F, Fecchi K, Raggi C, Sanchez M, D'Atri S, Carè A, Sargiacomo M, Parolini I. Acidic microenvironment plays a key role in human melanoma progression through a sustained exosome mediated transfer of clinically relevant metastatic molecules. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:245. [PMID: 30290833 PMCID: PMC6173926 DOI: 10.1186/s13046-018-0915-z] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 09/24/2018] [Indexed: 12/21/2022]
Abstract
Background Microenvironment cues involved in melanoma progression are largely unknown. Melanoma is highly influenced in its aggressive phenotype by the changes it determinates in its microenvironment, such as pH decrease, in turn influencing cancer cell invasiveness, progression and tissue remodelling through an abundant secretion of exosomes, dictating cancer strategy to the whole host. A role of exosomes in driving melanoma progression under microenvironmental acidity was never described. Methods We studied four differently staged human melanoma lines, reflecting melanoma progression, under microenvironmental acidic pHs pressure ranging between pH 6.0–6.7. To estimate exosome secretion as a function of tumor stage and environmental pH, we applied a technique to generate native fluorescent exosomes characterized by vesicles integrity, size, density, markers expression, and quantifiable by direct FACS analysis. Functional roles of exosomes were tested in migration and invasion tests. Then we performed a comparative proteomic analysis of acid versus control exosomes to elucidate a specific signature involved in melanoma progression. Results We found that metastatic melanoma secretes a higher exosome amount than primary melanoma, and that acidic pH increases exosome secretion when melanoma is in an intermediate stage, i.e. metastatic non-invasive. We were thus able to show that acidic pH influences the intercellular cross-talk mediated by exosomes. In fact when exposed to exosomes produced in an acidic medium, pH naïve melanoma cells acquire migratory and invasive capacities likely due to transfer of metastatic exosomal proteins, favoring cell motility and angiogenesis. A Prognoscan-based meta-analysis study of proteins enriched in acidic exosomes, identified 11 genes (HRAS, GANAB, CFL2, HSP90B1, HSP90AB1, GSN, HSPA1L, NRAS, HSPA5, TIMP3, HYOU1), significantly correlating with poor prognosis, whose high expression was in part confirmed in bioptic samples of lymph node metastases. Conclusions A crucial step of melanoma progression does occur at melanoma intermediate –stage, when extracellular acidic pH induces an abundant release and intra-tumoral uptake of exosomes. Such exosomes are endowed with pro-invasive molecules of clinical relevance, which may provide a signature of melanoma advancement. Electronic supplementary material The online version of this article (10.1186/s13046-018-0915-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zaira Boussadia
- Global Health Center, Istituto Superiore di Sanità, Rome, Italy
| | - Jessica Lamberti
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Fabrizio Mattei
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Elisabetta Pizzi
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Rossella Puglisi
- Center for Gender- specific Medicine, Istituto Superiore di Sanità, Istituto Superiore di Sanità, Rome, Italy
| | - Cristiana Zanetti
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Luca Pasquini
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Federica Fratini
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Luca Fantozzi
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Federica Felicetti
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy
| | - Katia Fecchi
- Global Health Center, Istituto Superiore di Sanità, Rome, Italy
| | - Carla Raggi
- National Center for the Control and Evaluation of Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Massimo Sanchez
- Major Equipments and Core Facilities, Istituto Superiore di Sanità, Rome, Italy
| | - Stefania D'Atri
- Laboratory of Molecular Oncology, Istituto Dermopatico dell'Immacolata- IRCCS, Rome, Italy
| | - Alessandra Carè
- Center for Gender- specific Medicine, Istituto Superiore di Sanità, Istituto Superiore di Sanità, Rome, Italy
| | | | - Isabella Parolini
- Oncology and Molecular Medicine Department, Istituto Superiore di Sanità, Rome, Italy.
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Abstract
There is a growing interest for the discovery of new cancer-targeted delivery systems for drug delivery and diagnosis. A synopsis of the bibliographic data will be presented on bombesin, neurotensin, octreotide, Arg-Gly-Asp, luteinizing hormone-releasing hormone and other peptides. Many of them have reached the clinics for therapeutic or diagnostic purposes, and have been utilized as carriers of known cytotoxic agents such as doxorubicin, paclitaxel, cisplatin, methotrexate or dyes and radioisotopes. In our article, recent advances in the development of peptides as carriers of cytotoxic drugs or radiometals will be analyzed.
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Song L, Fan Z, Jun N, Benjia L, Zequn L, Xilong W, Zhongming J, Yong H, Xiaohong W, Kai C, Zhenlin Y. Tumor specific delivery and therapy mediate by integrin β6-target immunoliposomes for β6-siRNA in colon carcinoma. Oncotarget 2018; 7:85163-85175. [PMID: 27835891 PMCID: PMC5356726 DOI: 10.18632/oncotarget.13209] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 10/21/2016] [Indexed: 11/25/2022] Open
Abstract
Adjuvant chemotherapy does not achieve the desired therapeutic efficacy in colon cancer as a result of the deficient reaction. Gene therapy using small interfering RNAs (siRNAs) delivered by target delivering system represents a potent and specific strategy in tumor therapy. Integrinβ6 is exclusively expressed in malignant colonic epithelia, associated with the progression, metastasis, and chemotherapeutic resistance of colon cancer. Accordingly, designing an efficient and targeted delivery system for β6-siRNA could be a potential approach to improve therapeutic efficacy of colon cancer. Here, we designed the Integrinβ6 target immunoliposomes for highly efficient and selective delivery of β6-siRNA in colon cancer, which consequently resulted in greatly growth suppression, invasion and metastasis of colon cancer cells. Moreover, it was able to greatly inhibit the tumor growing in vivo.
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Affiliation(s)
- Liu Song
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Zhang Fan
- Department of Oncology, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Niu Jun
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, PR China
| | - Liang Benjia
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, PR China
| | - Li Zequn
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, PR China
| | - Wang Xilong
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Jia Zhongming
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Han Yong
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Wang Xiaohong
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Cheng Kai
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
| | - Yang Zhenlin
- Department of Thyroid & Breast Surgery, Binzhou Medical College Affiliated Hospital, Binzhou 256600, Shandong, PR China
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12
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Exploring the Role of RGD-Recognizing Integrins in Cancer. Cancers (Basel) 2017; 9:cancers9090116. [PMID: 28869579 PMCID: PMC5615331 DOI: 10.3390/cancers9090116] [Citation(s) in RCA: 287] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/28/2017] [Accepted: 08/31/2017] [Indexed: 12/18/2022] Open
Abstract
Integrins are key regulators of communication between cells and with their microenvironment. Eight members of the integrin superfamily recognize the tripeptide motif Arg-Gly-Asp (RGD) within extracelluar matrix (ECM) proteins. These integrins constitute an important subfamily and play a major role in cancer progression and metastasis via their tumor biological functions. Such transmembrane adhesion and signaling receptors are thus recognized as promising and well accessible targets for novel diagnostic and therapeutic applications for directly attacking cancer cells and their fatal microenvironment. Recently, specific small peptidic and peptidomimetic ligands as well as antibodies binding to distinct integrin subtypes have been developed and synthesized as new drug candidates for cancer treatment. Understanding the distinct functions and interplay of integrin subtypes is a prerequisite for selective intervention in integrin-mediated diseases. Integrin subtype-specific ligands labelled with radioisotopes or fluorescent molecules allows the characterization of the integrin patterns in vivo and later the medical intervention via subtype specific drugs. The coating of nanoparticles, larger proteins, or encapsulating agents by integrin ligands are being explored to guide cytotoxic reagents directly to the cancer cell surface. These ligands are currently under investigation in clinical studies for their efficacy in interference with tumor cell adhesion, migration/invasion, proliferation, signaling, and survival, opening new treatment approaches in personalized medicine.
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13
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14
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Li Z, Biswas S, Liang B, Zou X, Shan L, Li Y, Fang R, Niu J. Integrin β6 serves as an immunohistochemical marker for lymph node metastasis and promotes cell invasiveness in cholangiocarcinoma. Sci Rep 2016; 6:30081. [PMID: 27440504 PMCID: PMC4954992 DOI: 10.1038/srep30081] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 06/29/2016] [Indexed: 12/14/2022] Open
Abstract
Cholangiocarcinoma is a devastating malignancy that is notoriously difficult to diagnose and is associated with a high mortality. Despite extensive efforts to improve the diagnosis and treatment of this neoplasm, limited progress has been made. Integrin β6 is a subtype of integrin that is expressed exclusively on the surfaces of epithelial cells and is associated with a variety of tumors. In the present study, we investigated the expression and roles of integrin β6 in cholangiocarcinoma. β6 upregulation in cholangiocarcinoma was correlated with lymph node metastasis and distant metastasis. Moreover, integrin β6 was identified as a biomarker for the diagnosis of cholangiocarcinoma and an indicator of lymph node metastasis. Integrin β6 significantly promoted the proliferation, migration and invasion of cholangiocarcinoma cells. Furthermore, integrin β6 increased Rac1-GTPase, resulting in the upregulation of metalloproteinase-9 (MMP9) and F-actin polymerization. Taken together, our results indicate that integrin β6 promotes tumor invasiveness in a Rac1-dependent manner and is a potential biomarker for tumor metastasis. Integrin β6 may help to improve the diagnostic accuracy, and targeting β6 may be a novel strategy for the treatment of cholangiocarcinoma.
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Affiliation(s)
- Zequn Li
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Jinan 250012, Shandong, China
| | - Siddhartha Biswas
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Jinan 250012, Shandong, China
| | - Benjia Liang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Jinan 250012, Shandong, China
| | - Xueqing Zou
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Jinan 250012, Shandong, China
| | - Liqun Shan
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Jinan 250012, Shandong, China
| | - Yang Li
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.,Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Jinan 250012, Shandong, China
| | - Ruliang Fang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Jun Niu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
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15
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Wang Y, Mao Q, Chang H, Wu Y, Pan S, Li Y, Zhang Y. Inability of FMDV replication in equine kidney epithelial cells is independent of integrin αvβ3 and αvβ6. Virology 2016; 492:251-8. [PMID: 27011223 DOI: 10.1016/j.virol.2016.01.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Revised: 01/24/2016] [Accepted: 01/29/2016] [Indexed: 10/22/2022]
Abstract
Integrins can function as receptors for foot-and-mouth disease virus (FMDV) in epithelium. Horses are believed to be insusceptible to this disease, but the mechanism of resistance remains unclear. To detect whether FMDV can use integrin to attach to equine epithelial, we compared the utilities of αvβ3 and αvβ6 between bovine and equine kidney epithelial cells (KECs). Equine KECs showed almost equal efficiency to those of bovine. Further, the integrin αv, β3, and β6 subunits from bovine and equine were cloned and vectors were transfected into SW480 cells and COS-1 cells alone or together, and virus titers were used to determine the viral replication. In all cases, the virus reproduced successfully. Overall, FMDV can replicate in SW480 cells transfected with equine β3/β6 subunits and COS-1 cells transfected with equine αvβ3/αvβ6 integrins, but not in EKECs. These results indicated that failure of FMDV replication in EKECs was not attributed to integrin receptors.
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Affiliation(s)
- Yanqin Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, PR China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Qingfu Mao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, PR China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Huiyun Chang
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 Gansu, PR China
| | - Yongyan Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, PR China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Shaohui Pan
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, PR China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Yanhe Li
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, PR China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, PR China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
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16
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Integrin β6 can be translationally regulated by eukaryotic initiation factor 4E: Contributing to colonic tumor malignancy. Tumour Biol 2015; 36:6541-50. [PMID: 25982998 DOI: 10.1007/s13277-015-3348-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 03/16/2015] [Indexed: 01/09/2023] Open
Abstract
It is well known that both eukaryotic initiation factor 4E (eIF4E) and integrin αvβ6 can contribute to malignant behavior of colon cancer. We have found that integrin αvβ6 and eIF4E were co-expressed and positively correlated in colon cancer tissues. Recently, deregulation of the protein synthesis apparatus has begun to gain attention as a major participant in cancer development and progression. However, the regulation of integrin β6 expression at translational level has never been investigated before. In present study, gene-silencing technique for eIF4E by small interfering RNA (siRNA) was used in all the subsequent experiments, in order to investigate whether eIF4E could translationally regulate expression of integrin β6 in colon cancer SW480 and HT-29 cell lines. Additionally, the subsequent effects of eIF4E knockdown on cellular malignant behavior were observed. siRNA in SW480 and HT-29 transfectants. Subsequently, protein expression of β6 was markedly suppressed, while mRNA expression of β6 showed no significant variation before and after eIF4E RNA interfering. Therefore, it could be seen that eIF4E could upregulate the expression of β6, without effect on β6 mRNA expression. More importantly, after treated with eIF4E siRNA, cellular migratory capacity on fibronectin of HT-29 and β6-transfected SW480 as well as their survival to 5-FU was decreased distinctly. Expression of integrin β6 could be translationally regulated by eIF4E, which subsequently contributed to tumor malignancy through enhancing cellular migration, survival, anti-apoptosis, and chemoresistance of colon cancer in vitro. Thus, targeting eIF4E in integrin αvβ6 expressing tumors can be a potential therapeutic strategy for patients with colon cancer.
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17
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Zhang Y, Wei L, Yu J, Li G, Zhang X, Wang A, He Y, Li H, Yin D. Targeting of the β6 gene to suppress degradation of ECM via inactivation of the MAPK pathway in breast adenocarcinoma cells. Oncol Rep 2014; 32:1787-95. [PMID: 25176506 PMCID: PMC4203328 DOI: 10.3892/or.2014.3419] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 07/30/2014] [Indexed: 11/25/2022] Open
Abstract
Integrin ανβ6 has emerged as a potential novel target for anticancer and plays a major role in promoting malignant tumor progression. Recent studies indicate that integrin ανβ6 occurs in many cancers. However, whether and how ανβ6 is regulated by genetic and epigenetic mechanisms in breast cancer remain unknown. In the present study, two different short hairpin RNAs (shRNAs) targeting the β6 gene were designed and constructed into pSUPER, respectively, which were transfected into the MCF-7 human breast adenocarcinoma cell line. The β6-shRNA stably transfected cells were successfully established, and significant lower levels of ανβ6 mRNA and protein expression were confirmed. Furthermore, inhibition of integrin ανβ6 markedly downregulated the expression of matrix metalloproteinase-9 (MMP-9), matrix metalloproteinase-3 (MMP-3) and urokinase plasminogen activator (uPA) in tumor conditioned medium. Furthermore, β6-shRNA-mediated silencing of the ανβ6 gene obviously decreased the expression of ERK1/2. In particular, supression of integrin ανβ6 caused significant downregulation of the degradation of basement membrane type IV collagen secretion via modulation of the plasminogen activation cascade. Our results thus indicate that ανβ6 plays a fundamental role in promoting invasion and growth of breast adenocarcinoma cells. Taken together, this study revealed that targeting of the β6 gene by RNA interference (RNAi) could efficiently downregulate ανβ6 expression and suppress the ERK1/2-dependent extracellular matrix degradation in vitro, which is dependent upon inactivation of the mitogen-activated protein kinase (MAPK) pathway. These findings may offer a useful therapeutic approach to block invasion and migration of breast cancer cells.
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Affiliation(s)
- Yuhua Zhang
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Lijing Wei
- Department of Urology, Shandong Provincial Hospital, Jinan, Shandong 250021, P.R. China
| | - Jin Yu
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Guang Li
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Xiuru Zhang
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Anliu Wang
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Yanjiao He
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Hongli Li
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Deling Yin
- Department of Internal Medicine, Department of Pharmacology, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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18
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Sun Q, Sun F, Wang B, Liu S, Niu W, Liu E, Peng C, Wang J, Gao H, Liang B, Niu Z, Zou X, Niu J. Interleukin-8 promotes cell migration through integrin αvβ6 upregulation in colorectal cancer. Cancer Lett 2014; 354:245-53. [PMID: 25150782 DOI: 10.1016/j.canlet.2014.08.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/01/2014] [Accepted: 08/14/2014] [Indexed: 01/05/2023]
Abstract
Colorectal cancer (CRC), which is notorious for high morbidity and mortality around the world, shows a predilection for metastasis to liver. Interleukin-8 (IL-8), a chemokine with a defining CXC amino acid motif, has been reported to promote CRC cell migration and is associated with poor prognosis of CRC. However, the underlying molecular mechanism of IL-8-mediated migration remains obscure. In this study, we first demonstrated the cross talk between IL-8 and integrin αvβ6. We analyzed 139 human CRC samples, and found that the immunohistochemical expression of αvβ6 was significantly correlated with expression of IL-8. Furthermore, IL-8 increased the migration through integrin αvβ6 in human CRC cells, and both CXCR1 and CXCR2 were primarily involved during the process. IL-8 upregulated αvβ6 expression in a dose-dependent manner through activation of ERK and Ets-1 signaling pathway. Taken together, our results indicated that IL-8 enhances the migration of CRC cells by increasing αvβ6 integrin expression through the ERK/Ets-1 pathway. Targeting integrin αvβ6 in IL-8 expressing tumors might be a potential therapeutic strategy for CRC patients.
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Affiliation(s)
- Qi Sun
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Fengkai Sun
- Department of Hepatology, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Ben Wang
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Song Liu
- Department of Thyroid and Breast Surgery, Affiliated Hospital of Binzhou Medical College, Binzhou 256603, Shandong, China
| | - Weibo Niu
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Enyu Liu
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Cheng Peng
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Jiayong Wang
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Huijie Gao
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Benjia Liang
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Zhengchuan Niu
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Xueqing Zou
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Public Health, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Jun Niu
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China.
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β6 integrin induces the expression of metalloproteinase-3 and metalloproteinase-9 in colon cancer cells via ERK-ETS1 pathway. Cancer Lett 2014; 354:427-37. [PMID: 25135220 DOI: 10.1016/j.canlet.2014.08.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Revised: 08/12/2014] [Accepted: 08/12/2014] [Indexed: 01/09/2023]
Abstract
We previously reported that β6 integrin played an important role in the progression of colon cancer. In this study, we demonstrated that β6 integrin induced the expression of MMP-3/MMP-9 and the invasion of colon cancer cells. Moreover, that function was abolished by the inhibition of ERK/MAPK pathways or knockdown of ETS1, an important transcription factor of MMP genes. Here, we showed that β6 induced phosphorylation of ETS1 via the ERK/MAPK pathways, through which the MMP-3/MMP-9 promoters were stimulated, thereby leading to the up-regulation of MMP-3/MMP-9, and subsequent the invasion of colon cancer cells.
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20
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Wang B, Wang W, Niu W, Liu E, Liu X, Wang J, Peng C, Liu S, Xu L, Wang L, Niu J. SDF-1/CXCR4 axis promotes directional migration of colorectal cancer cells through upregulation of integrin αvβ6. Carcinogenesis 2013; 35:282-91. [PMID: 24085800 DOI: 10.1093/carcin/bgt331] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Colorectal cancer (CRC) displays a predilection for metastasis to liver. Although stromal cell-derived factor-1 (SDF-1)/CXCR4 plays an important role in the liver metastasis, the molecular mechanism still remains obscure. We previously reported that integrin αvβ6 was implicated in the progression of CRC. However, no data are currently available on the cross talk between CXCR4 and αvβ6. In the present study, we first demonstrated the cross talk between CXCR4 and αvβ6 and their role in liver metastasis of CRC. We analyzed 159 human CRC samples and found that expression of CXCR4 and αvβ6 was significantly associated with liver metastasis, and interestingly expression of αvβ6 significantly correlated with expression of CXCR4. Both CXCR4 and αvβ6 were highly expressed in metastatic CRC cell lines HT-29 and WiDr, whereas both of them were exiguous in non-metastatic cell line Caco-2. Furthermore, inhibition of αvβ6 significantly decreased SDF-1α-induced cell migration in vitro. SDF-1/CXCR4 could upregulate αvβ6 expression through phosphorylation of ERK and activation of Ets-1 transcription factor. In conclusion, we demonstrate that SDF-1/CXCR4 induces directional migration and liver metastasis of CRC cells by upregulating αvβ6 through ERK/Ets-1 pathway. These data support combined inhibition of CXCR4 and αvβ6 to prevent development of liver metastasis of CRC.
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Affiliation(s)
- Ben Wang
- Department of Hepatobiliary Surgery
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21
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miR-126&126* restored expressions play a tumor suppressor role by directly regulating ADAM9 and MMP7 in melanoma. PLoS One 2013; 8:e56824. [PMID: 23437250 PMCID: PMC3578857 DOI: 10.1371/journal.pone.0056824] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Accepted: 01/15/2013] [Indexed: 01/02/2023] Open
Abstract
The abnormal expression of several microRNAs has a causal role in tumorigenesis with either antineoplastic or oncogenic functions. Here we demonstrated that miR-126 and miR-126* play a tumor suppressor role in human melanoma through the direct or indirect repression of several key oncogenic molecules. The expression levels of miR-126&126* were elevated in normal melanocytes and primary melanoma cell lines, whereas they markedly declined in metastatic cells. Indeed, the restored expression of miR-126&126* in two advanced melanoma cell lines was accompanied by a significant reduction of proliferation, invasion and chemotaxis in vitro as well as of growth and dissemination in vivo. In accordance, the reverse functional effects were obtained by knocking down miR-126&126* by transfecting antisense LNA oligonucleotides in melanoma cells. Looking for the effectors of these antineoplastic functions, we identified ADAM9 and MMP7, two metalloproteases playing a pivotal role in melanoma progression, as direct targets of miR-126&126*. In addition, as ADAM9 and MMP7 share a role in the proteolytic cleavage of the HB-EGF precursor, we looked for the effectiveness of this regulatory pathway in melanoma, confirming the decrease of HB-EGF activation as a consequence of miR-126&126*-dependent downmodulation of ADAM9 and MMP7. Finally, gene profile analyses showed that miR-126&126* reexpression was sufficient to inactivate other key signaling pathways involved in the oncogenic transformation, as PI3K/AKT and MAPK, and to restore melanogenesis, as indicated by KIT/MITF/TYR induction. In view of this miR-126&126* wide-ranging action, we believe that the replacement of these microRNAs might be considered a promising therapeutic approach.
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22
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Liu S, Wang J, Niu W, Liu E, Wang J, Peng C, Lin P, Wang B, Khan AQ, Gao H, Liang B, Shahbaz M, Niu J. The β6-integrin-ERK/MAP kinase pathway contributes to chemo resistance in colon cancer. Cancer Lett 2012; 328:325-34. [PMID: 23073477 DOI: 10.1016/j.canlet.2012.10.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 09/30/2012] [Accepted: 10/07/2012] [Indexed: 12/21/2022]
Abstract
5-Fluorouracil (5-FU) is the most widely used chemo drug for the treatment of colon cancer. However, a sub-population of colon cancer patients do not respond to 5-FU and this treatment does not provide survival benefit due to chemo resistance. The mechanisms involved in 5-FU resistance are not fully understood and multiple factors have been involved in the sensitivity of cancer cells to 5-FU. We previously reported that β6-integrin plays an important role in invasion, metastasis and degradation of extracellular matrix of colon cancer. In this study, we investigated whether β6-integrin is associated with chemo resistance in colon cancer. We found that over-expression of β6-integrin protected SW480 and HT-29 colon cancer cells from 5-FU-induced growth inhibition and apoptosis, which were accompanied by changes in cytochrome C released from the mitochondria and activity of caspase-3 and caspase-9. Moreover, β6-integrin resulted in up-regulation of Bcl-2 and down-regulation of Bax. We also found that β6-integrin induced 5-FU resistance through the ERK/MAP kinase pathway and the β6-ERK2 direct binding. The results indicate β6-integrin might be a novel therapeutic target in colon cancer therapy.
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Affiliation(s)
- Song Liu
- Department of Hepatobiliary Surgery, Qilu Hospital, Shandong University, Jinan 250012, Shandong, PR China
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23
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Abstract
Integrin-mediated cell adhesion is involved in many essential normal cellular and pathological functions including cell survival, growth, differentiation, migration, inflammatory responses, platelet aggregation, tissue repair and tumor invasion. 24 different heterodimerized transmembrane integrin receptors are combined from 18 different α and 8 different β subunits. Each integrin subunit contains a large extracellular domain, a single transmembrane domain and a usually short cytoplasmic domain. Integrins bind extracellular matrix (ECM) proteins through their large extracellular domain, and engage the cytoskeleton via their short cytoplasmic tails. These integrin-mediated linkages on either side of the plasma membrane are dynamically linked. Thus, integrins communicate over the plasma membrane in both directions, i.e., outside-in and inside-out signaling. In outside-in signaling through integrins, conformational changes of integrin induced by ligand binding on the extracellular domain altered the cytoplasmic domain structures to elicit various intracellular signaling pathways. Inside-out signaling originates from non-integrin cell surface receptors or cytoplasmic molecules and it activates signaling pathways inside the cells, ultimately resulting in the activation/deactivation of integrins. Integrins are one of key family proteins for cell adhesion regulation through binding to a large number of ECM molecules and cell membrane proteins. Lack of expression of integrins may result in a wide variety of effects ranging from blockage in pre-implantation to embryonic or perinatal lethality and developmental defects. Based on both the key role they played in angiogenesis, leukocytes function and tumor development and easy accessibility as cell surface receptors interacting with extracellular ligands, the integrin superfamily represents the best opportunity of targeting both antibodies and small-molecule antagonists for both therapeutic and diagnostic utility in various key diseases so far.
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24
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Wang J, Wu J, Hong J, Chen R, Xu K, Niu W, Peng C, Liu E, Wang J, Liu S, Agrez M, Niu J. PKC promotes the migration of colon cancer cells by regulating the internalization and recycling of integrin αvβ6. Cancer Lett 2011; 311:38-47. [PMID: 21741165 DOI: 10.1016/j.canlet.2011.06.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 06/02/2011] [Accepted: 06/16/2011] [Indexed: 12/16/2022]
Abstract
Recently published studies have suggested that integrin trafficking is necessary to support cell migration, but the role of internalization and recycling of integrin αvβ6 in colon cancer cells remained unclear. In our study, we demonstrated the existence of the integrin cycle and found that inhibition of ERK2 phosphorylation by PD98059 or deletion of the ERK2 direct binding site on the β6 cytoplasmic domain could interrupt the internalization of integrin αvβ6, but had no effect on its recycling. Furthermore, integrin αvβ6 trafficking played a key role in the migration of colon cancer cells towards fibronectin. Activation of PKC significantly accelerated the internalization and recycling of integrin αvβ6, which could facilitate rapid redistribution of integrin αvβ6 and increase cell motility. When colon cancer cells became crowded, the increase in αvβ6 levels at the cell surface was not accompanied by a change in total αvβ6 expression in cell lysates. This change may be due to a redistribution of αvβ6 in cell microstructures and a rapid cellular response towards the demands of migration.
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Affiliation(s)
- Jian Wang
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, Shandong, PR China
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25
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Psoriasin (S100A7) associates with integrin β6 subunit and is required for αvβ6-dependent carcinoma cell invasion. Oncogene 2010; 30:1422-35. [DOI: 10.1038/onc.2010.535] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Soory M. Oxidative stress induced mechanisms in the progression of periodontal diseases and cancer: a common approach to redox homeostasis? Cancers (Basel) 2010; 2:670-92. [PMID: 24281088 PMCID: PMC3835098 DOI: 10.3390/cancers2020670] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 04/19/2010] [Accepted: 04/22/2010] [Indexed: 02/07/2023] Open
Abstract
There is documented evidence of significant associations between cancer of the lung, kidney, pancreas, hematological and oral cancers and periodontal diseases of the supporting structures of the teeth. Enhanced lipid peroxidation, raised levels of TBARS and the oxidative stress marker malondealdehyde have been detected in breast cancer with reduced antioxidant capacity, also characteristic of periodontal diseases. Antioxidants could overcome this deficit and attenuate disease progression by down regulating glutathione detoxification/redox buffering system and inhibiting key transcription factors. Periodontal disease may be a critical marker of a susceptible immune system, or initiate cancer risk with a pro-oxidant inflammatory profile.
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Affiliation(s)
- Mena Soory
- Periodontology, King's College London Dental Institute, Denmark Hill, London SE5 9RW, UK.
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27
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Qi L, Cornelis MC, Kraft P, Stanya KJ, Linda Kao WH, Pankow JS, Dupuis J, Florez JC, Fox CS, Paré G, Sun Q, Girman CJ, Laurie CC, Mirel DB, Manolio TA, Chasman DI, Boerwinkle E, Ridker PM, Hunter DJ, Meigs JB, Lee CH, Hu FB, van Dam RM. Genetic variants at 2q24 are associated with susceptibility to type 2 diabetes. Hum Mol Genet 2010; 19:2706-15. [PMID: 20418489 DOI: 10.1093/hmg/ddq156] [Citation(s) in RCA: 159] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
To identify type 2 diabetes (T2D) susceptibility loci, we conducted genome-wide association (GWA) scans in nested case-control samples from two prospective cohort studies, including 2591 patients and 3052 controls of European ancestry. Validation was performed in 11 independent GWA studies of 10,870 cases and 73,735 controls. We identified significantly associated variants near RBMS1 and ITGB6 genes at 2q24, best-represented by SNP rs7593730 (combined OR=0.90, 95% CI=0.86-0.93; P=3.7x10(-8)). The frequency of the risk-lowering allele T is 0.23. Variants in this region were nominally related to lower fasting glucose and HOMA-IR in the MAGIC consortium (P<0.05). These data suggest that the 2q24 locus may influence the T2D risk by affecting glucose metabolism and insulin resistance.
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Affiliation(s)
- Lu Qi
- Department of Nutrition, Harvard School of Public Health, and Brigham and Women's Hospital, Boston, MA, USA.
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28
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Peng C, Liu X, Liu E, Xu K, Niu W, Chen R, Wang J, Zhang Z, Lin P, Wang J, Agrez M, Niu J. Norcantharidin induces HT-29 colon cancer cell apoptosis through the alphavbeta6-extracellular signal-related kinase signaling pathway. Cancer Sci 2009; 100:2302-8. [PMID: 19744110 PMCID: PMC11159502 DOI: 10.1111/j.1349-7006.2009.01320.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Norcantharidin has been used as an efficacious anticancer drug in China for many years, but its true mechanism remains poorly understood. Intriguingly, in an in vitro series study of anticancer drugs, we found that norcantharidin can effectively inhibit epithelial tumor cells from expressing integrin alphavbeta6. Our previous studies have confirmed that integrin alphavbeta6 is closely relevant to malignant epithelial cell tumor biology behavior, and it can promote cancer cells to invade and metastasize through a special alphavbeta6-extracellular signal-related kinase (ERK) direct signaling pathway. In this study, we investigated the relationship between the norcantharidin anticancer mechanism and integrin alphavbeta6. After HT-29 colon cancer cells were treated with norcantharidin, cell apoptosis increased remarkably. The expression of alphavbeta6 and the amount of p-ERK decreased substantially; simultaneously, the linkage between alphavbeta6 and ERK was barely detectable. However, the expression of other integrins and the levels of mitogen-activated protein kinase hardly changed. On these grounds, we presumed that norcantharidin induced HT-29 colon cancer cell apoptosis through the alphavbeta6-ERK signaling pathway. This finding elicited a novel strategy for targeting the whole alphavbeta6-ERK signal pathway, rather than simply blocking the combining site of alphavbeta6-ERK in colon cancer treatment.
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Affiliation(s)
- Cheng Peng
- Department of General Surgery, QiLu Hospital, Shandong University, Jinan, Shandong, China
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29
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Felicetti F, Parolini I, Bottero L, Fecchi K, Errico MC, Raggi C, Biffoni M, Spadaro F, Lisanti MP, Sargiacomo M, Carè A. Caveolin-1 tumor-promoting role in human melanoma. Int J Cancer 2009; 125:1514-22. [PMID: 19521982 DOI: 10.1002/ijc.24451] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Caveolin-1 (Cav-1), a member of the caveolin family, regulates caveolae-associated signaling proteins, which are involved in many biological processes, including cancer development. Cav-1 was found to exert a complex and ambiguous role as oncogene or tumor suppressor depending on the cellular microenvironment. Here we investigated Cav-1 expression and function in a panel of melanomas, finding its expression in all the cell lines. The exception was the primary vertical melanoma cell line, WM983A, characterized by the lack of Cav-1, and then utilized as a recipient for Cav-1 gene transduction to address a series of functional studies. The alleged yet controversial role of phospho (Ph)-Cav-1 on cell regulation was also tested by transducing the nonphosphorylatable Cav-1Y14A mutant. Wild-type Cav-1, but not mutated Cav-1Y14A, increased tumorigenicity as indicated by enhanced proliferation, migration, invasion and capacity of forming foci in semisolid medium. Accordingly, Cav-1 silencing inhibited melanoma cell growth reducing some of the typical traits of malignancy. Finally, we detected a secreted fraction of Cav-1 associated with cell released microvesicular particles able to stimulate in vitro anchorage independence, migration and invasion in a paracrine/autocrine fashion and, more important, competent to convey metastatic asset from the donor melanoma to the less aggressive recipient cell line. A direct correlation between Cav-1 levels, the amount of microvesicles released in the culture medium and MMP-9 expression was also observed.
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Affiliation(s)
- Federica Felicetti
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Viale Regina Elena, Rome, Italy
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30
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Zhao R, Liu XQ, Wu XP, Liu YF, Zhang ZY, Yang GY, Guo S, Niu J, Wang JY, Xu KS. Vascular endothelial growth factor (VEGF) enhances gastric carcinoma invasiveness via integrin alpha(v)beta6. Cancer Lett 2009; 287:150-6. [PMID: 19581046 DOI: 10.1016/j.canlet.2009.06.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 05/18/2009] [Accepted: 06/04/2009] [Indexed: 12/21/2022]
Abstract
Integrins play an important role in tumor metastasis induced by vascular endothelial growth factor (VEGF). However, in the case of gastric cancer, the precise role of VEGF in regulating integrin alphavbeta6 is unclear. In this study, we found that most of the alphavbeta6 integrin-positive gastric cancer tissues were also VEGF-positive. Furthermore, when gastric carcinoma cells were exposed to VEGF, expression of alphavbeta6 integrin was up-regulated and the extracellular signal-related kinase (ERK) pathway was activated. When integrin alphavbeta6 was blocked either with beta6 siRNA or anti-alphavbeta6 antibody, the migration of tumor cells normally induced by VEGF, as well as the activation of ERK, were markedly inhibited. Blocking the ERK signaling pathway significantly inhibited cell mobility. Taken together, the data suggest that VEGF is critical to the invasive process in human gastric cancer and that this occurs via up-regulation of integrin alphavbeta6 expression and activation of ERK.
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Affiliation(s)
- Rui Zhao
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, PR China
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31
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Wang J, Zhang Z, Xu K, Sun X, Yang G, Niu W, Liu E, Peng C, Lin P, Wang J, Chen R, Agrez M, Niu J. Suppression of integrin αυβ6 by RNA interference in colon cancer cells inhibits extracellular matrix degradation through the MAPK pathway. Int J Cancer 2008; 123:1311-7. [DOI: 10.1002/ijc.23656] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Fernandez LC, Errico MC, Bottero L, Penkov D, Resnati M, Blasi F, Caré A. Oncogenic HoxB7 requires TALE cofactors and is inactivated by a dominant-negative Pbx1 mutant in a cell-specific manner. Cancer Lett 2008; 266:144-55. [PMID: 18378073 DOI: 10.1016/j.canlet.2008.02.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Revised: 02/18/2008] [Accepted: 02/19/2008] [Indexed: 01/18/2023]
Abstract
The homeobox containing gene HoxB7 is functionally associated with melanoma growth promotion through the direct transactivation of bFGF. Accordingly, the introduction of HoxB7 in the breast cancer line SkBr3 (SkBr3/B7), strongly increases its tumorigenic properties. Here we show that in SkBr3/B7 cells, HoxB7 regulates the expression of TALE Hox cofactors by increasing Pbx2 and Prep1 and decreasing Pbx1. The functional requirement of Hox cofactors in the oncogenic activity of HoxB7 was proven with a dominant-negative Pbx1 mutant, Pbx1NT, which sequesters Prep1 in the cytoplasm. The less aggressive phenotype of the SkBr3/B7/PbxNT cells, evaluated in vitro as well as in vivo, correlated well with increased apoptosis, decreased cycling and up-regulation of p16 and p53. Tumor cell-type specific functional effects of Pbx1NT were observed, possibly related to the presence of different Hox genes in melanoma or breast adenocarcinoma DNA-protein ternary complexes.
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Affiliation(s)
- Luis C Fernandez
- IFOM, FIRC Institute of Molecular Oncology, via Adamello 16, 20126 Milan, Italy
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33
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Yang GY, Xu KS, Pan ZQ, Zhang ZY, Mi YT, Wang JS, Chen R, Niu J. Integrin alpha v beta 6 mediates the potential for colon cancer cells to colonize in and metastasize to the liver. Cancer Sci 2008; 99:879-87. [PMID: 18294287 PMCID: PMC11158270 DOI: 10.1111/j.1349-7006.2008.00762.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Integrin alpha v beta 6 (alpha v beta 6) is correlated with colon cancer progression. To detect the effects of alpha v beta 6 on liver metastasis, the specificity of alpha v beta 6 against the monoclonal antibody (mAb) 2G2 was examined by immunoprecipitation. Integrin alpha v beta 6-immunoreactivity (IR) in liver metastasis tissues (63 cases) and colon carcinoma (358 cases) were examined. These results showed that alpha v beta 6 was specifically recognized by the mAb 2G2, and that rates of alpha v beta 6 positivity in liver metastatic tissues (71.4%, 45/63) were higher than that for primary colon cancer (34.0%, 122/358) (P < 0.01). Patients who were alpha v beta 6-positive had higher liver metastasis rates (17%, 21/122) than those who were alpha v beta 6-negative (only 3%, 7/236) (P < 0.01). To examine the underlying mechanisms associated with alpha v beta 6 regulating colonic metastasis in the liver, experimental liver metastasis (intrasplenic injection of HT29 transfectants) and liver colonization assays (direct injection of WiDr transfectants into the liver) in nude mice were performed; these demonstrated that alpha v beta 6 contributed to the promotion of the metastatic potential and the survival of cancer cells in the liver. Matrix metalloproteinase-9 (MMP-9) levels in the cultures of both HT29 and WiDr cells were detected by the Biotrak MMP-9 activity assay system and gelatin zymography assay, and showed that suppression of alpha v beta 6-IR inhibited MMP-9 activity and secretion. Transwell migration assay in vitro also showed that alpha v beta 6 promoted migration on fibronectin for HT29/WiDr mock compared with HT29/WiDr antisense beta 6 transfects (P < 0.01). We concluded that alpha v beta 6 may mediate the potential for colon cancer cells to colonize in and metastasize to the liver. The mechanisms that alpha v beta 6 may be involved in include the promotion of MMP-9 secretion, the enhancement of migration on fibronectin, and the survival of cancer cells in the liver.
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Affiliation(s)
- Guang-Yun Yang
- General Surgical Department of Qilu Hospital and Institute of Hepatobiliary and Vascular Surgery, Shandong University, Jinan, China
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34
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Wang B, Dolinski BM, Kikuchi N, Leone DR, Peters MG, Weinreb PH, Violette SM, Bissell DM. Role of alphavbeta6 integrin in acute biliary fibrosis. Hepatology 2007; 46:1404-12. [PMID: 17924447 PMCID: PMC4144397 DOI: 10.1002/hep.21849] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
UNLABELLED Acute biliary obstruction leads to periductal myofibroblasts and fibrosis, the origin of which is uncertain. Our study provides new information on this question in mice and humans. We show that bile duct obstruction induces a striking increase in cholangiocyte alphavbeta6 integrin and that expression of this integrin is directly linked to fibrogenesis through activation of transforming growth factor beta (TGF-beta). Administration of blocking antibody to alphavbeta6 significantly reduces the extent of acute fibrosis after bile duct ligation. Moreover, in beta6-null mice subjected to the injury, fibrosis is reduced by 50% relative to that seen in wild-type mice, whereas inflammation occurs to the same extent. The data indicate that alphavbeta6, rather than inflammation, is linked to fibrogenesis. It is known that alphavbeta6 binds latent TGF-beta and that binding results in release of active TGFbeta. Consistent with this, intracellular signaling from the TGFbeta receptor is increased after bile duct ligation in wild-type mice but not in beta6(-/-) mice, and a competitive inhibitor of the TGFbeta receptor type II blocks fibrosis to the same extent as antibody to alphavbeta6. In a survey of human liver disease, expression of alphavbeta6 is increased in acute, but not chronic, biliary injury and is localized to cholangiocyte-like cells. CONCLUSION Cholangiocytes respond to acute bile duct obstruction with markedly increased expression of alphavbeta6 integrin, which is closely linked to periductal fibrogenesis. The findings provide a rationale for the use of inhibitors of alphavbeta6 integrin or TGFbeta for down-regulating fibrosis in the setting of acute or ongoing biliary injury.
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Affiliation(s)
- Bruce Wang
- The Liver Center, Department of Medicine, University of California, San Francisco
| | | | - Noriko Kikuchi
- The Liver Center, Department of Medicine, University of California, San Francisco
| | | | - Marion G. Peters
- The Liver Center, Department of Medicine, University of California, San Francisco
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35
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Fouchier F, Penel C, Pierre Montero M, Bremond P, Champion S. Integrin αvβ6 mediates HT29-D4 cell adhesion to MMP-processed fibrinogen in the presence of Mn2+. Eur J Cell Biol 2007; 86:143-60. [PMID: 17275949 DOI: 10.1016/j.ejcb.2006.12.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2005] [Revised: 12/13/2006] [Accepted: 12/13/2006] [Indexed: 10/23/2022] Open
Abstract
Mn(2+) was found to induce adhesion of HT29-D4 adenoma carcinoma cells to fibrinogen (Fb). This was independent of the expression of the beta3 integrin subunit and involved endogenous alphavbeta6 but not alphavbeta5 integrin. Thus, addition of Mn(2+) led to a change in integrin alphavbeta6 specificity. Furthermore, Mn(2+) was found to strongly activate the extracellular signal-regulated kinase/mitogen-activated protein kinase (ERK/MAPK) pathway in the HT29-D4 cell line. As a MAPK inhibitor strongly reduced the Mn(2+)-induced cell adhesion to Fb, it is suggested that a link between MAPK activation and cell adhesion to Fb exists. Both expression and activity of matrix metalloproteinase-9 (MMP-9) were enhanced by Mn(2+) and this led to Fb processing. MMP inhibitors prevented Mn(2+)-mediated cell adhesion to Fb, leading us to suggest that Mn(2+) promoted convergent changes in integrin alphavbeta6 conformation and Fb structure through activation of ERK/MAPK and MMP-9. Finally, we found that Mn(2+) and activators of the ERK pathway cooperated in HT29-D4 cell adhesion to Fb. Such a process may be involved in bone metastasis of some cancer cells.
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Affiliation(s)
- Francis Fouchier
- Laboratoire de Génie Génétique et Biotechnologie, INSERM 476, INRA 1260, Faculté de Pharmacie, 27 Bd Jean Moulin, F-13385 Marseille cedex 5, France
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36
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Thomas GJ, Nyström ML, Marshall JF. Alphavbeta6 integrin in wound healing and cancer of the oral cavity. J Oral Pathol Med 2006; 35:1-10. [PMID: 16393247 DOI: 10.1111/j.1600-0714.2005.00374.x] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Integrins are a family of heterodimeric cell surface receptors, which are expressed on most cells where they mediate cell-cell and cell-extracellular matrix (ECM) interactions. The alphavbeta6 integrin is epithelial-specific and binds to the ECM proteins fibronectin, vitronectin and tenascin, and also to the latency associated peptide of TGF-beta. Unlike most epithelial integrins, alphavbeta6 is not expressed constitutively by healthy oral epithelia, but is up-regulated during tissue remodelling, including that accompanying wound healing and carcinogenesis. Although, the data at present have been generated principally from in vitro studies, there is increasing evidence to suggest that alphavbeta6 may promote carcinoma progression: alphavbeta6 has been shown to modulate invasion, inhibit apoptosis, regulate protease expression and activate TGF-beta1. This review examines the current literature, and discusses the possible role of alphavbeta6 in wound healing, and in the development and progression of oral squamous cell carcinoma.
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Affiliation(s)
- G J Thomas
- Tumour Biology Laboratory, Cancer Research UK Clinical Centre, Bart's and the London School of Medicine and Dentistry, London, UK.
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37
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Felicetti F, Bottero L, Felli N, Mattia G, Labbaye C, Alvino E, Peschle C, Colombo MP, Carè A. Role of PLZF in melanoma progression. Oncogene 2004; 23:4567-76. [PMID: 15077196 DOI: 10.1038/sj.onc.1207597] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The promyelocytic leukemia zinc finger (PLZF) protein has been described as a transcriptional repressor of homeobox (HOX)-containing genes during embryogenesis. As we previously demonstrated a functional link between overexpression of HOXB7 and melanoma progression, we investigated the lack of PLZF as the possible cause of HOXB7 constitutive activation in these neoplastic cells. Accordingly, we found PLZF expression in melanocytes, but not in melanoma cells, a pattern inversely related to that of HOXB7. PLZF retroviral gene transduction was then performed in a panel of melanoma cell lines, and tumorigenicity was compared with that of empty vector-transduced control cell lines. Evaluation of in vitro migration, invasion and adhesion indicated that PLZF gene transduction induced a less malignant phenotype, as confirmed through in vivo studies performed in athymic nude mice. This reduced tumorigenicity was not coupled with HOXB7 repression. In order to find more about the molecular targets of PLZF, the gene expression profiles of PLZF- and empty vector-transduced A375 melanoma cells were analysed by Atlas Cancer macroarray. Among several genes modulated by PLZF enforced expression, of particular interest were integrin alphavbeta3, osteonectin/SPARC and matrix metalloprotease-9 that were downmodulated, and the tyrosinase-related protein-1 that was upregulated in all the analysed samples. This profile confirms the reduced tumorigenic phenotype with reversion to a more differentiated, melanocyte like, pattern, thus suggesting a suppressor role for PLZF in solid tumors. Moreover, these results indicate that PLZF and HOXB7 are functionally independent and that their coupled deregulation may account for most of the alterations described in melanomas.
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Affiliation(s)
- Federica Felicetti
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy
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38
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Morgan MR, Thomas GJ, Russell A, Hart IR, Marshall JF. The Integrin Cytoplasmic-tail Motif EKQKVDLSTDC Is Sufficient to Promote Tumor Cell Invasion Mediated by Matrix Metalloproteinase (MMP)-2 or MMP-9. J Biol Chem 2004; 279:26533-9. [PMID: 15067014 DOI: 10.1074/jbc.m401736200] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Integrins promote cellular invasion through a combination of activities, including adhesion to an extracellular matrix ligand, which result in the generation of intracellular signals that lead to changes in cell behavior. Until now, there have been no data that identify a particular region of the cytoplasmic tail of integrin subunits as being responsible specifically for promoting the invasive activity of tumor cells. In this report, we show that amino acids with the sequence EKQKVDLSTDC, which are the C-terminal residues of the integrin beta6 subunit, promote alphavbeta6-dependent invasion in a matrix metalloproteinase (MMP)-9-dependent fashion. This same peptide sequence, when expressed at the cytoplasmic end of the beta3 integrin subunit, was able to enhance alphavbeta3-mediated invasive and enzymatic activity of tumor cells in an MMP-2-dependent fashion. Our results show that these 11 amino acids, when expressed at the C terminus of the beta subunit, are responsible for regulating the activity of invasion-promoting degradative enzymes, whereas the specific MMP involved in this cellular behavior is dependent on the context of the remainder of the beta integrin subunit.
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Affiliation(s)
- Mark R Morgan
- Tumour Biology Laboratory, Cancer Research UK Clinical Centre, Barts and The London School of Medicine and Dentistry, John Vane Science Centre, Charterhouse Sq., London EC1M 6BQ, United Kingdom
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