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Huang CC, Tsai MC, Wu YL, Lee YJ, Yen AT, Wang CJ, Kao SH. Gallic acid attenuates metastatic potential of human colorectal cancer cells through the miR-1247-3p-modulated integrin/FAK axis. ENVIRONMENTAL TOXICOLOGY 2024; 39:2077-2085. [PMID: 38100242 DOI: 10.1002/tox.24087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/19/2023] [Accepted: 12/01/2023] [Indexed: 03/09/2024]
Abstract
Colorectal cancer (CRC) exhibits highly metastatic potential even in the early stages of tumor progression. Gallic acid (GA), a common phenolic compound in plants, is known to possess potent antioxidant and anticancer activities, thereby inducing cell death or cell cycle arrest. However, whether GA reduces the invasiveness of CRC cells without inducing cell death remains unclear. Herein, we aimed to investigate the antimetastatic activity of low-dose GA on CRC cells and determine its underlying mechanism. Cell viability and tumorigenicity were analyzed by MTS, cell adhesion, and colony formation assay. Invasiveness was demonstrated using migration and invasion assays. Changes in protein phosphorylation and expression were assessed by Western blot. The involvement of microRNAs was validated by microarray analysis and anti-miR antagonist. Our findings showed that lower dose of GA (≤100 μM) did not affect cell viability but reduced the capabilities of colony formation, cell adhesion, and invasiveness in CRC cells. Cellularly, GA downregulated the cellular level of integrin αV/β3, talin-1, and tensin and diminished the phosphorylated FAK, paxillin, Src, and AKT in DLD-1 cells. Microarray results revealed that GA increased miR-1247-3p expression, and pretreatment of anti-miR antagonist against miR-1247-3p restored the GA-reduced integrin αV/β3 and the GA-inhibited paxillin activation in DLD-1 cells. Consistently, the in vivo xenograft model showed that GA administration inhibited tumor growth and liver metastasis derived from DLD-1 cells. Collectively, our findings indicated that GA inhibited the metastatic capabilities of CRC cells, which may result from the suppression of integrin/FAK axis mediated by miR1247-3p.
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Affiliation(s)
- Chi-Chou Huang
- Department of Colorectal Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Chang Tsai
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yi-Liang Wu
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Cardiovascular Surgery, Surgical Department, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yi-Ju Lee
- Department of Pathology, Chung Shan Medical University Hospital, Taichung, Taiwan
- Department of Pathology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - An-Ting Yen
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chau-Jong Wang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Health Industry Technology Management, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shao-Hsuan Kao
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
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2
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Fu Q, Gao H, Liu K, Su J, Zhang J, Guo X, Yang F. Identification of circRNA-miRNA-mRNA Network Regulated by Hsp90 in Human Melanoma A375 Cells. Comb Chem High Throughput Screen 2024; 27:307-316. [PMID: 37303182 DOI: 10.2174/1386207326666230609145247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 06/13/2023]
Abstract
BACKGROUND Melanoma is the deadliest form of skin cancer. Heat shock protein 90 (Hsp90) is highly expressed in human melanoma. Hsp90 inhibitors can suppress the growth of human melanoma A375 cells; however, the underlying mechanism remains unclear. METHODS A375 cells were treated with SNX-2112, an Hsp90 inhibitor, for 48 h, and wholetranscriptome sequencing was performed. RESULTS A total of 2,528 differentially expressed genes were identified, including 895 upregulated and 1,633 downregulated genes. Pathway enrichment analyses of differentially expressed mRNAs identified the extracellular matrix (ECM)-receptor interaction pathway as the most significantly enriched pathway. The ECM receptor family mainly comprises integrins (ITGs) and collagens (COLs), wherein ITGs function as the major cell receptors for COLs. 19 upregulated miRNAs were found to interact with 6 downregulated ITG genes and 8 upregulated miRNAs were found to interact with 3 downregulated COL genes. 9 differentially expressed circRNAs in SNX-2112- treated A375 cells were identified as targets of the ITG- and COL-related miRNAs. Based on the differentially expressed circRNAs, miRNAs, and mRNAs, ITGs- and COL-based circRNAmiRNA- mRNA regulatory networks were mapped, revealing a novel regulatory mechanism of Hsp90-regulated melanoma. CONCLUSION Targeting the ITG-COL network is a promising approach to the treatment of melanoma.
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Affiliation(s)
- Qiang Fu
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - Hengyuan Gao
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - Kaisheng Liu
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Jianglin Zhang
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
- Candidate Branch of the National Clinical Research Center for Skin Diseases, Shenzhen, 518020, Guangdong, China
| | - Xiaojing Guo
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - Fang Yang
- Guangdong Provincial Clinical Research Center for Geriatrics, Shenzhen Clinical Research Center for Geriatrics, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
- Candidate Branch of the National Clinical Research Center for Skin Diseases, Shenzhen, 518020, Guangdong, China
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3
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Sobhi Amjad Z, Shojaeian A, Sadri Nahand J, Bayat M, Taghizadieh M, Rostamian M, Babaei F, Moghoofei M. Oncoviruses: Induction of cancer development and metastasis by increasing anoikis resistance. Heliyon 2023; 9:e22598. [PMID: 38144298 PMCID: PMC10746446 DOI: 10.1016/j.heliyon.2023.e22598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 11/07/2023] [Accepted: 11/15/2023] [Indexed: 12/26/2023] Open
Abstract
The phenomenon of cell death is a vital aspect in the regulation of aberrant cells such as cancer cells. Anoikis is a kind of cell death that occurs when cells get separated from the extracellular matrix. Some cancer cells can inhibit anoikis in order to progress metastasis. One of the key variables that might be implicated in anoikis resistance (AR) is viral infections. The most important viruses involved in this process are Epstein-Barr virus, human papillomavirus, hepatitis B virus, human herpes virus 8, human T-cell lymphotropic virus type 1, and hepatitis C virus. A better understanding of how carcinogenic viruses suppress anoikis might be helpful in developing an effective treatment for virus-associated cancers. In the current study, we review the role of the mentioned viruses and their gene products in anoikis inhibition.
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Affiliation(s)
- Zahra Sobhi Amjad
- Department of Microbiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Shojaeian
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Javid Sadri Nahand
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mobina Bayat
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Taghizadieh
- Department of Pathology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mosayeb Rostamian
- Nosocomial Infections Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farhad Babaei
- Department of Microbiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohsen Moghoofei
- Department of Microbiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Infectious Diseases Research Center, Health Research Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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4
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Cresens C, Solís-Fernández G, Tiwari A, Nuyts R, Hofkens J, Barderas R, Rocha S. Flat clathrin lattices are linked to metastatic potential in colorectal cancer. iScience 2023; 26:107327. [PMID: 37539031 PMCID: PMC10393769 DOI: 10.1016/j.isci.2023.107327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/09/2023] [Accepted: 07/05/2023] [Indexed: 08/05/2023] Open
Abstract
Clathrin assembles at the cells' plasma membrane in a multitude of clathrin-coated structures (CCSs). Among these are flat clathrin lattices (FCLs), alternative clathrin structures that have been found in specific cell types, including cancer cells. Here we show that these structures are also present in different colorectal cancer (CRC) cell lines, and that they are extremely stable with lifetimes longer than 8 h. By combining cell models representative of CRC metastasis with advanced fluorescence imaging and analysis, we discovered that the metastatic potential of CRC is associated with an aberrant membranous clathrin distribution, resulting in a higher prevalence of FCLs in cells with a higher metastatic potential. These findings suggest that clathrin organization might play an important yet unexplored role in cancer metastasis.
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Affiliation(s)
- Charlotte Cresens
- Molecular Imaging and Photonics Division, Chemistry Department, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Guillermo Solís-Fernández
- Molecular Imaging and Photonics Division, Chemistry Department, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
- Chronic Disease Programme, UFIEC, Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Astha Tiwari
- Molecular Imaging and Photonics Division, Chemistry Department, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Rik Nuyts
- Molecular Imaging and Photonics Division, Chemistry Department, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Johan Hofkens
- Molecular Imaging and Photonics Division, Chemistry Department, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Rodrigo Barderas
- Chronic Disease Programme, UFIEC, Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Susana Rocha
- Molecular Imaging and Photonics Division, Chemistry Department, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
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5
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Bhattacharya N, Kolvekar N, Mondal S, Sarkar A, Chakrabarty D. Biological activities of Vipegrin, an anti-adhesive Kunitz-type serine proteinase inhibitor purified from Russell's viper venom. Toxicon 2023:107213. [PMID: 37419286 DOI: 10.1016/j.toxicon.2023.107213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/01/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Vipegrin is a 6.8 kDa protein purified from Russell's viper (Vipera russelii russelii) venom. Structural assessment of Vipegrin indicates that it is a Kunitz-type serine proteinase inhibitor. Kunitz-type serine proteinase inhibitors are non-enzymatic proteins and are ubiquitous constituents of viper venoms. Vipegrin could partially (43%) inhibit the catalytic activity of trypsin. It has disintegrin-like properties and could inhibit collagen and ADP-induced platelet aggregation in a dose-dependent manner. Vipegrin is cytotoxic to human breast cancer cells, MCF7 and restricts its invasive property. Confocal microscopic analysis revealed that Vipegrin could induce apoptosis in MCF7 cells. Vipegrin disrupts cell-cell adhesion of human breast cancer MCF7 cells through its disintegrin-like activity. It also causes cell-matrix disruption of MCF7 cells from synthetic (poly L-lysine) and natural (fibronectin, laminin) matrices. Vipegrin did not cause cytotoxicity on non-cancerous HaCaT, human keratinocytes. The observed properties indicate that Vipegrin may help the development of a potent anti-cancer drug in future.
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Affiliation(s)
| | - Nivedita Kolvekar
- Birla Institute of Technology and Science, Pilani K K Birla Goa Campus, India
| | - Sukanta Mondal
- Birla Institute of Technology and Science, Pilani K K Birla Goa Campus, India
| | - Angshuman Sarkar
- Birla Institute of Technology and Science, Pilani K K Birla Goa Campus, India
| | - Dibakar Chakrabarty
- Birla Institute of Technology and Science, Pilani K K Birla Goa Campus, India.
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6
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Del Mistro G, Riemann S, Schindler S, Beissert S, Kontermann RE, Ginolhac A, Halder R, Presta L, Sinkkonen L, Sauter T, Kulms D. Focal adhesion kinase plays a dual role in TRAIL resistance and metastatic outgrowth of malignant melanoma. Cell Death Dis 2022; 13:54. [PMID: 35022419 PMCID: PMC8755828 DOI: 10.1038/s41419-022-04502-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/26/2021] [Accepted: 12/07/2021] [Indexed: 12/19/2022]
Abstract
Despite remarkable advances in therapeutic interventions, malignant melanoma (MM) remains a life-threating disease. Following high initial response rates to targeted kinase-inhibition metastases quickly acquire resistance and present with enhanced tumor progression and invasion, demanding alternative treatment options. We show 2nd generation hexameric TRAIL-receptor-agonist IZI1551 (IZI) to effectively induce apoptosis in MM cells irrespective of the intrinsic BRAF/NRAS mutation status. Conditioning to the EC50 dose of IZI converted the phenotype of IZI-sensitive parental MM cells into a fast proliferating and invasive, IZI-resistant metastasis. Mechanistically, we identified focal adhesion kinase (FAK) to play a dual role in phenotype-switching. In the cytosol, activated FAK triggers survival pathways in a PI3K- and MAPK-dependent manner. In the nucleus, the FERM domain of FAK prevents activation of wtp53, as being expressed in the majority of MM, and consequently intrinsic apoptosis. Caspase-8-mediated cleavage of FAK as well as FAK knockdown, and pharmacological inhibition, respectively, reverted the metastatic phenotype-switch and restored IZI responsiveness. FAK inhibition also re-sensitized MM cells isolated from patient metastasis that had relapsed from targeted kinase inhibition to cell death, irrespective of the intrinsic BRAF/NRAS mutation status. Hence, FAK-inhibition alone or in combination with 2nd generation TRAIL-receptor agonists may be recommended for treatment of initially resistant and relapsed MM, respectively.
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Affiliation(s)
- Greta Del Mistro
- Experimental Dermatology, Department of Dermatology, TU-Dresden, 01307, Dresden, Germany
| | - Shamala Riemann
- Experimental Dermatology, Department of Dermatology, TU-Dresden, 01307, Dresden, Germany
| | - Sebastian Schindler
- Experimental Dermatology, Department of Dermatology, TU-Dresden, 01307, Dresden, Germany
- National Center for Tumor Diseases Dresden, TU-Dresden, 01307, Dresden, Germany
| | - Stefan Beissert
- Experimental Dermatology, Department of Dermatology, TU-Dresden, 01307, Dresden, Germany
| | - Roland E Kontermann
- Institute of Cell Biology and Immunology and Stuttgart Research Centre Systems Biology, University of Stuttgart, 70569, Stuttgart, Germany
| | - Aurelien Ginolhac
- Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, 4367, Luxembourg
| | - Rashi Halder
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, 4367, Luxembourg
| | - Luana Presta
- Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, 4367, Luxembourg
| | - Lasse Sinkkonen
- Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, 4367, Luxembourg
| | - Thomas Sauter
- Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, 4367, Luxembourg
| | - Dagmar Kulms
- Experimental Dermatology, Department of Dermatology, TU-Dresden, 01307, Dresden, Germany.
- National Center for Tumor Diseases Dresden, TU-Dresden, 01307, Dresden, Germany.
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7
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The Important Role of Ion Transport System in Cervical Cancer. Int J Mol Sci 2021; 23:ijms23010333. [PMID: 35008759 PMCID: PMC8745646 DOI: 10.3390/ijms23010333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 12/15/2022] Open
Abstract
Cervical cancer is a significant gynecological cancer and causes cancer-related deaths worldwide. Human papillomavirus (HPV) is implicated in the etiology of cervical malignancy. However, much evidence indicates that HPV infection is a necessary but not sufficient cause in cervical carcinogenesis. Therefore, the cellular pathophysiology of cervical cancer is worthy of study. This review summarizes the recent findings concerning the ion transport processes involved in cell volume regulation and intracellular Ca2+ homeostasis of epithelial cells and how these transport systems are themselves regulated by the tumor microenvironment. For cell volume regulation, we focused on the volume-sensitive Cl− channels and K+-Cl− cotransporter (KCC) family, important regulators for ionic and osmotic homeostasis of epithelial cells. Regarding intracellular Ca2+ homeostasis, the Ca2+ store sensor STIM molecules and plasma membrane Ca2+ channel Orai proteins, the predominant Ca2+ entry mechanism in epithelial cells, are discussed. Furthermore, we evaluate the potential of these membrane ion transport systems as diagnostic biomarkers and pharmacological interventions and highlight the challenges.
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8
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Caliva MJ, Yang WS, Young-Robbins S, Zhou M, Yoon H, Matter ML, Grimes ML, Conrads T, Ramos JW. Proteomics analysis identifies PEA-15 as an endosomal phosphoprotein that regulates α5β1 integrin endocytosis. Sci Rep 2021; 11:19830. [PMID: 34615962 PMCID: PMC8494857 DOI: 10.1038/s41598-021-99348-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 09/20/2021] [Indexed: 12/15/2022] Open
Abstract
Endosomal trafficking of cell surface receptors is essential to their function. Integrins are transmembrane receptors that integrate adhesion to the extracellular matrix with engagement of the cytoskeleton. Ligated integrins mediate diverse signals that regulate matrix assembly, cell survival, cell morphology, and cell motility. Endosomal trafficking of integrins modulates these signals and contributes to cell motility and is required for cancer cell invasion. The phosphoprotein PEA-15 modulates integrin activation and ERK MAP Kinase signaling. To elucidate novel PEA-15 functions we utilized an unbiased proteomics approach. We identified several binding partners for PEA-15 in the endosome including clathrin and AP-2 as well as integrin β1 and other focal adhesion complex proteins. We confirmed these interactions using proximity ligation analysis, immunofluorescence imaging, pull-down and co-immunoprecipitation. We further found that PEA-15 is enriched in endosomes and was required for efficient endosomal internalization of α5β1 integrin and cellular migration. Importantly, PEA-15 promotion of migration was dependent on PEA-15 phosphorylation at serines 104 and 116. These data support a novel endosomal role for PEA-15 in control of endosomal trafficking of integrins through an association with the β1 integrin and clathrin complexes, and thereby regulation of cell motility.
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Affiliation(s)
- Maisel J Caliva
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Won Seok Yang
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Shirley Young-Robbins
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Ming Zhou
- Women's Health Integrated Research Center at Inova, Inova Women's Service Line, Inova Health System, 3289 Woodburn Rd, Suite 375, Falls Church, VA, 22003, USA
| | - Hana Yoon
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Michelle L Matter
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Mark L Grimes
- Division of Biological Sciences, Center for Structural and Functional Neuroscience, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
| | - Thomas Conrads
- Women's Health Integrated Research Center at Inova, Inova Women's Service Line, Inova Health System, 3289 Woodburn Rd, Suite 375, Falls Church, VA, 22003, USA
| | - Joe William Ramos
- Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii at Mānoa, 701 Ilalo Street, Honolulu, HI, 96813, USA.
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9
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Khan I, Steeg PS. Endocytosis: a pivotal pathway for regulating metastasis. Br J Cancer 2021; 124:66-75. [PMID: 33262521 PMCID: PMC7782782 DOI: 10.1038/s41416-020-01179-8] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/30/2020] [Accepted: 11/04/2020] [Indexed: 12/16/2022] Open
Abstract
A potentially important aspect in the regulation of tumour metastasis is endocytosis. This process consists of internalisation of cell-surface receptors via pinocytosis, phagocytosis or receptor-mediated endocytosis, the latter of which includes clathrin-, caveolae- and non-clathrin or caveolae-mediated mechanisms. Endocytosis then progresses through several intracellular compartments for sorting and routing of cargo, ending in lysosomal degradation, recycling back to the cell surface or secretion. Multiple endocytic proteins are dysregulated in cancer and regulate tumour metastasis, particularly migration and invasion. Importantly, four metastasis suppressor genes function in part by regulating endocytosis, namely, the NME, KAI, MTSS1 and KISS1 pathways. Data on metastasis suppressors identify a new point of dysregulation operative in tumour metastasis, alterations in signalling through endocytosis. This review will focus on the multicomponent process of endocytosis affecting different steps of metastasis and how metastatic-suppressor genes use endocytosis to suppress metastasis.
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Affiliation(s)
- Imran Khan
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.
| | - Patricia S Steeg
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
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10
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Naqvi SM, McNamara LM. Stem Cell Mechanobiology and the Role of Biomaterials in Governing Mechanotransduction and Matrix Production for Tissue Regeneration. Front Bioeng Biotechnol 2020; 8:597661. [PMID: 33381498 PMCID: PMC7767888 DOI: 10.3389/fbioe.2020.597661] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022] Open
Abstract
Mechanobiology has underpinned many scientific advances in understanding how biophysical and biomechanical cues regulate cell behavior by identifying mechanosensitive proteins and specific signaling pathways within the cell that govern the production of proteins necessary for cell-based tissue regeneration. It is now evident that biophysical and biomechanical stimuli are as crucial for regulating stem cell behavior as biochemical stimuli. Despite this, the influence of the biophysical and biomechanical environment presented by biomaterials is less widely accounted for in stem cell-based tissue regeneration studies. This Review focuses on key studies in the field of stem cell mechanobiology, which have uncovered how matrix properties of biomaterial substrates and 3D scaffolds regulate stem cell migration, self-renewal, proliferation and differentiation, and activation of specific biological responses. First, we provide a primer of stem cell biology and mechanobiology in isolation. This is followed by a critical review of key experimental and computational studies, which have unveiled critical information regarding the importance of the biophysical and biomechanical cues for stem cell biology. This review aims to provide an informed understanding of the intrinsic role that physical and mechanical stimulation play in regulating stem cell behavior so that researchers may design strategies that recapitulate the critical cues and develop effective regenerative medicine approaches.
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Affiliation(s)
- S M Naqvi
- Mechanobiology and Medical Device Research Group, Department of Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland
| | - L M McNamara
- Mechanobiology and Medical Device Research Group, Department of Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland
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11
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Malavia N, Kuche K, Ghadi R, Jain S. A bird's eye view of the advanced approaches and strategies for overshadowing triple negative breast cancer. J Control Release 2020; 330:72-100. [PMID: 33321156 DOI: 10.1016/j.jconrel.2020.12.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 12/12/2022]
Abstract
Triple negative breast cancer (TNBC) is one of the most aggressive form of breast cancer. It is characterized by the absence of estrogen, progesterone and human epidermal growth factor receptors. The main issue with TNBC is that it exhibits poor prognosis, high risk of relapse, short progression-free survival and low overall survival in patients. This is because the conventional therapy used for managing TNBC has issues pertaining to poor bioavailability, lower cellular uptake, increased off-target effects and development of resistance. To overcome such pitfalls, several other approaches are explored. In this context, the present manuscript showcases three of the most widely used approaches which are (i) nanotechnology-based approach; (ii) gene therapy approach and (iii) Phytochemical-based approach. The ultimate focus is to present and explain the insightful reports based on these approaches. Further, the review also expounds on the identified molecular targets and novel targeting ligands which are explored for managing TNBC effectively. Thus, in a nutshell, the review tries to highlight these existing treatment approaches which might inspire for future development of novel therapies with a potential of overshadowing TNBC.
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Affiliation(s)
- Nilesh Malavia
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Mohali, Punjab, India
| | - Kaushik Kuche
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Mohali, Punjab, India
| | - Rohan Ghadi
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Mohali, Punjab, India
| | - Sanyog Jain
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Mohali, Punjab, India.
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12
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Cao D, Di M, Liang J, Shi S, Tan Q, Wang Z. MicroRNA-183 in Cancer Progression. J Cancer 2020; 11:1315-1324. [PMID: 32047538 PMCID: PMC6995398 DOI: 10.7150/jca.39044] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/16/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNA-183(miR-183) is abnormally expressed in many kinds of tumors. It participates in the initiation and development of tumors. There are many pathways regulate the expression of miR-183. The action mechanism of miR-183 in cancer is very extensive, and contradictory conclusions are often drawn. It was upregulated in 18 kinds of cancer, downregulated in 6 kinds of cancer. In addition, there are seven types of cancer, both upregulated and downregulated reports can be found. Evidence showed that miR-183 can not only directly play the role of oncogene or antioncogene, but also regulate the expression of other oncogene or antioncogene in different cancer types. In this review, we discuss the regulator of miR-183 and summarized the expression of miR-183 in different cancers. We also counted the target genes of miR-183 and the functional roles they play. Furthermore, we focused on the roles of miR-183 in cell migration, cell invasion, epithelial-mesenchymal transition (EMT) and microangiogenesis, which play the most important roles in cancer processes. It sheds light on the likely reasons why miR-183 plays different roles in various cancers. In addition, miR-183 and its downstream effectors have the potential to be promising prognostic markers and therapeutic targets in cancer.
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Affiliation(s)
- Dingren Cao
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Min Di
- Sir Run Shaw Hospital, Zhejiang University College of Medicine, Hangzhou, 310058, P. R. China
| | - Jingjie Liang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shuang Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Qiang Tan
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Zhengguang Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
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13
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Abstract
PURPOSE OF REVIEW Osteocytes are the main mechanosensitive cells in bone. Integrin-based adhesions have been shown to facilitate mechanotransduction, and therefore play an important role in load-induced bone formation. This review outlines the role of integrins in osteocyte function (cell adhesion, signalling, and mechanotransduction) and possible role in disease. RECENT FINDINGS Both β1 and β3 integrins subunits have been shown to be required for osteocyte mechanotransduction. Antagonism of these integrin subunits in osteocytes resulted in impaired responses to fluid shear stress. Various disease states (osteoporosis, osteoarthritis, bone metastases) have been shown to result in altered integrin expression and function. Osteocyte integrins are required for normal cell function, with dysregulation of integrins seen in disease. Understanding the mechanism of faulty integrins in disease may aid in the creation of novel therapeutic approaches.
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Affiliation(s)
- Ivor P Geoghegan
- Department of Mechanical and Biomedical Engineering, Mechanobiology and Medical Device Research Group (MMDRG), Biomedical Engineering, National University of Ireland, Galway, Ireland
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - David A Hoey
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and Bioengineering Research Centre, Trinity College Dublin & RCSI, Dublin 2, Ireland
| | - Laoise M McNamara
- Department of Mechanical and Biomedical Engineering, Mechanobiology and Medical Device Research Group (MMDRG), Biomedical Engineering, National University of Ireland, Galway, Ireland.
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland.
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14
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Haun F, Neumann S, Peintner L, Wieland K, Habicht J, Schwan C, Østevold K, Koczorowska MM, Biniossek M, Kist M, Busch H, Boerries M, Davis RJ, Maurer U, Schilling O, Aktories K, Borner C. Identification of a novel anoikis signalling pathway using the fungal virulence factor gliotoxin. Nat Commun 2018; 9:3524. [PMID: 30166526 PMCID: PMC6117259 DOI: 10.1038/s41467-018-05850-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 07/25/2018] [Indexed: 01/02/2023] Open
Abstract
Anoikis is a form of apoptosis induced by cell detachment. Integrin inactivation plays a major role in the process but the exact signalling pathway is ill-defined. Here we identify an anoikis pathway using gliotoxin (GT), a virulence factor of the fungus Aspergillus fumigatus, which causes invasive aspergillosis in humans. GT prevents integrin binding to RGD-containing extracellular matrix components by covalently modifying cysteines in the binding pocket. As a consequence, focal adhesion kinase (FAK) is inhibited resulting in dephosphorylation of p190RhoGAP, allowing activation of RhoA. Sequential activation of ROCK, MKK4/MKK7 and JNK then triggers pro-apoptotic phosphorylation of Bim. Cells in suspension or lacking integrin surface expression are insensitive to GT but are sensitised to ROCK-MKK4/MKK7-JNK-dependent anoikis upon attachment to fibronectin or integrin upregulation. The same signalling pathway is triggered by FAK inhibition or inhibiting integrin αV/β3 with Cilengitide. Thus, GT can target integrins to induce anoikis on lung epithelial cells.
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Affiliation(s)
- Florian Haun
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany.,Faculty of Biology, Albert Ludwigs University Freiburg, Schänzlestrasse 1, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), Albert Ludwigs University Freiburg, Albertstrasse 19a, 79104, Freiburg, Germany
| | - Simon Neumann
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany
| | - Lukas Peintner
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany
| | - Katrin Wieland
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany
| | - Jüri Habicht
- Institute of Immunology, University Hospital Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - Carsten Schwan
- Institute of Experimental and Clinical Pharmacology and Toxicology, Albert Ludwigs University Freiburg, Albertstrasse 25, 79102, Freiburg, Germany
| | - Kristine Østevold
- Institute of Experimental and Clinical Pharmacology and Toxicology, Albert Ludwigs University Freiburg, Albertstrasse 25, 79102, Freiburg, Germany
| | - Maria Magdalena Koczorowska
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany
| | - Martin Biniossek
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany
| | - Matthias Kist
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany
| | - Hauke Busch
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany.,Institute of Experimental Dermatology and Institute of Cardiogenetics, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - Melanie Boerries
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), INF 280, 69120, Heidelberg, Germany
| | - Roger J Davis
- Howard Hughes Medical Institute & Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Ulrich Maurer
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), Albert Ludwigs University Freiburg, Albertstrasse 19a, 79104, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, Schänzlestrasse 14, 79104, Freiburg, Germany
| | - Oliver Schilling
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), Albert Ludwigs University Freiburg, Albertstrasse 19a, 79104, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, Schänzlestrasse 14, 79104, Freiburg, Germany
| | - Klaus Aktories
- Spemann Graduate School of Biology and Medicine (SGBM), Albert Ludwigs University Freiburg, Albertstrasse 19a, 79104, Freiburg, Germany.,Institute of Experimental and Clinical Pharmacology and Toxicology, Albert Ludwigs University Freiburg, Albertstrasse 25, 79102, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, Schänzlestrasse 14, 79104, Freiburg, Germany
| | - Christoph Borner
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, Albert Ludwigs University Freiburg, Stefan Meier Strasse 17, 79104, Freiburg, Germany. .,Spemann Graduate School of Biology and Medicine (SGBM), Albert Ludwigs University Freiburg, Albertstrasse 19a, 79104, Freiburg, Germany. .,BIOSS Centre for Biological Signalling Studies, Schänzlestrasse 14, 79104, Freiburg, Germany.
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15
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Wei MM, Wang SS, Zheng JL, Chen JJ, Yan X, An HM, Hu B. Herbal compound Teng-Long-Bu-Zhong-Tang inhibits metastasis in human RKO colon carcinoma. Oncol Lett 2017; 14:7767-7772. [PMID: 29344222 PMCID: PMC5755261 DOI: 10.3892/ol.2017.7206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 09/07/2017] [Indexed: 12/21/2022] Open
Abstract
Metastasis is one of the primary obstacles to the successful treatment of colorectal cancer. Teng-Long-Bu-Zhong-Tang (TLBZT) is a modern Chinese herbal formula that may be useful in the treatment of metastatic colorectal cancer. The present study evaluated the effects of TLBZT on lung metastasis in human RKO colon carcinoma cells injected into mice via the tail vein. The results demonstrated that TLBZT inhibited the metastasis of human RKO colon carcinoma cells to the lungs. TLBZT downregulated the expression of LOX and hypoxia-inducible factor 1α. TLBZT also inhibited the expression of integrins αV and β3 and the phosphorylation of focal adhesion kinase. These results indicate that TLBZT inhibits the lung metastasis of RKO colon carcinoma by regulating the expression of multiple genes. The results of the present study provide a new basis for the management of colorectal cancer metastasis using treatments derived from Chinese herbs.
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Affiliation(s)
- Meng-Meng Wei
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China.,Institute of Traditional Chinese Medicine in Oncology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200032, P.R. China.,Beizhonghe Clinics, Qingdao, Shandong 266000, P.R. China
| | - Shuang-Shuang Wang
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China.,Institute of Traditional Chinese Medicine in Oncology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Jia-Lu Zheng
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China.,Institute of Traditional Chinese Medicine in Oncology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Jin-Jun Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, The Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200011, P.R. China
| | - Xia Yan
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China.,Institute of Traditional Chinese Medicine in Oncology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Hong-Mei An
- Department of Science and Technology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Bing Hu
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China.,Institute of Traditional Chinese Medicine in Oncology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200032, P.R. China
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16
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Duro-Castano A, Gallon E, Decker C, Vicent MJ. Modulating angiogenesis with integrin-targeted nanomedicines. Adv Drug Deliv Rev 2017; 119:101-119. [PMID: 28502767 DOI: 10.1016/j.addr.2017.05.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 04/12/2017] [Accepted: 05/09/2017] [Indexed: 12/20/2022]
Abstract
Targeting angiogenesis-related pathologies, which include tumorigenesis and metastatic processes, has become an attractive strategy for the development of efficient guided nanomedicines. In this respect, integrins are cell-adhesion molecules involved in angiogenesis signaling pathways and are overexpressed in many angiogenic processes. Therefore, they represent specific biomarkers not only to monitor disease progression but also to rationally design targeted nanomedicines. Arginine-glycine-aspartic (RGD) containing peptides that bind to specific integrins have been widely utilized to provide ligand-mediated targeting capabilities to small molecules, peptides, proteins, and antibodies, as well as to drug/imaging agent-containing nanomedicines, with the final aim of maximizing their therapeutic index. Within this review, we aim to cover recent and relevant examples of different integrin-assisted nanosystems including polymeric nanoconstructs, liposomes, and inorganic nanoparticles applied in drug/gene therapy as well as imaging and theranostics. We will also critically address the overall benefits of integrin-targeting.
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Affiliation(s)
- Aroa Duro-Castano
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab., Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - Elena Gallon
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab., Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - Caitlin Decker
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab., Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - María J Vicent
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab., Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
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17
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Konac E, Kiliccioglu I, Sogutdelen E, Dikmen AU, Albayrak G, Bilen CY. Do the expressions of epithelial-mesenchymal transition proteins, periostin, integrin-α4 and fibronectin correlate with clinico-pathological features and prognosis of metastatic castration-resistant prostate cancer? Exp Biol Med (Maywood) 2017; 242:1795-1801. [PMID: 28836852 DOI: 10.1177/1535370217728499] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Development of metastatic castration-resistant prostate cancer is a result of the lack of an apoptotic response by the tumor cells and loss of the ability to stick to adjacent cells through epithelial-mesenchymal transition. Although there are several strongly recommended biomarkers for determining prognosis of metastatic castration-resistant prostate cancer, only few of them may help decide the selection of the optimal treatment option. The mode of treatment sequencing in metastatic castration-resistant prostate cancer will be based on the individual characteristics of the patient. In this study, we aimed to explain the correlation between the expression characteristics of periostin, integrin-α4, and fibronectin in metastatic castration-resistant prostate cancer patients and their clinico-pathological data comprising Gleason score, PSA levels, and metastatic sites in the process of epithelial-mesenchymal transition. We evaluated by using Western blotting, periostin, integrin-α4, and fibronectin expressions in peripheral blood samples of metastatic castration-resistant prostate cancer patients ( n = 40), benign prostatic hyperplasia patients ( n = 20), and the healthy control group ( n = 20). Associations between changes in the protein expressions and clinico-pathological parameters were also analyzed in the metastatic castration-resistant prostate cancer group. When comparing BPH and healthy groups with the metastatic castration-resistant prostate cancer group, a reduced expression of integrin-α4 was found in metastatic patients, albeit being statistically insignificant ( P > 0.05). Protein expressions of periostin and fibronectin in the metastatic castration-resistant prostate cancer group were higher than those in the BPH and heathy groups ( P < 0.001). Increased periostin expression in metastatic patients was significantly associated with bone metastasis ( P < 0.05). Elevated periostin and fibronectin levels in metastatic castration-resistant prostate cancer patients may be appropriate targets of therapeutic intervention in the future. Impact statement Prostate cancer is the third most common cancer in the world and the most common cancer among men. Development of metastatic castration-resistant prostate cancer (mCRPC) is a result of the lack of an apoptotic response by the tumor cells and loss of the ability to stick to adjacent cells through epithelial-mesenchymal transition (EMT). The present study analyzes for the first time the expressions of EMT marker proteins - periostin, integrin α4, fibronectin - in mCRPC and in benign prostatic hyperplasia (BPH) with the aim to determine the clinical relevance of changes in these three proteins vis-a-vis the PCa aggressive phenotype. In doing so, it sheds light on the molecular mechanism underlying the disease. We concluded that elevated periostin and fibronectin levels in mCRPC patients may be appropriate targets of therapeutic intervention in the future; hence, adopting methods that target these proteins may help treat prostate cancer effectively.
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Affiliation(s)
- Ece Konac
- 1 Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Ilker Kiliccioglu
- 1 Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Emrullah Sogutdelen
- 2 Department of Urology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara 06100, Turkey
| | - Asiye U Dikmen
- 3 Department of Public Health, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Gulsah Albayrak
- 1 Department of Medical Biology and Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara 06510, Turkey
| | - Cenk Y Bilen
- 2 Department of Urology, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara 06100, Turkey
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18
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Wu YJ, Pagel MA, Muldoon LL, Fu R, Neuwelt EA. High αv Integrin Level of Cancer Cells Is Associated with Development of Brain Metastasis in Athymic Rats. Anticancer Res 2017; 37:4029-4040. [PMID: 28739685 DOI: 10.21873/anticanres.11788] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/01/2017] [Accepted: 06/14/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND/AIM Brain metastases commonly occur in patients with malignant skin, lung and breast cancers resulting in high morbidity and poor prognosis. Integrins containing an αv subunit are cell adhesion proteins that contribute to cancer cell migration and cancer progression. We hypothesized that high expression of αv integrin cell adhesion protein promoted metastatic phenotypes in cancer cells. MATERIALS AND METHODS Cancer cells from different origins were used and studied regarding their metastatic ability and intetumumab, anti-αv integrin mAb, sensitivity using in vitro cell migration assay and in vivo brain metastases animal models. RESULTS The number of brain metastases and the rate of occurrence were positively correlated with cancer cell αv integrin levels. High αv integrin-expressing cancer cells showed significantly faster cell migration rate in vitro than low αv integrin-expressing cells. Intetumumab significantly inhibited cancer cell migration in vitro regardless of αv integrin expression level. Overexpression of αv integrin in cancer cells with low αv integrin level accelerated cell migration in vitro and increased the occurrence of brain metastases in vivo. CONCLUSION αv integrin promotes brain metastases in cancer cells and may mediate early steps in the metastatic cascade, such as adhesion to brain vasculature. Targeting αv integrin with intetumumab could provide clinical benefit in treating cancer patients who develop metastases.
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Affiliation(s)
- Yingjen Jeffrey Wu
- Department of Neurology, Oregon Health & Sciences University, Portland, OR, U.S.A
| | | | - Leslie L Muldoon
- Department of Neurology, Oregon Health & Sciences University, Portland, OR, U.S.A.,Department of Cell, Developmental & Cancer Biology, Oregon Health & Sciences University, Portland, OR, U.S.A
| | - Rongwei Fu
- School of Public Health, Oregon Health & Sciences University, Portland, OR, U.S.A.,Department of Emergency Medicine, Oregon Health & Sciences University, Portland, OR, U.S.A
| | - Edward A Neuwelt
- Department of Neurology, Oregon Health & Sciences University, Portland, OR, U.S.A. .,Veterans Administration Medical Center, Portland, OR, U.S.A.,Department of Neurosurgery, Oregon Health & Sciences University, Portland, OR, U.S.A
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19
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Das L, Anderson TA, Gard JM, Sroka IC, Strautman SR, Nagle RB, Morrissey C, Knudsen BS, Cress AE. Characterization of Laminin Binding Integrin Internalization in Prostate Cancer Cells. J Cell Biochem 2017; 118:1038-1049. [PMID: 27509031 PMCID: PMC5553695 DOI: 10.1002/jcb.25673] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 08/09/2016] [Indexed: 12/27/2022]
Abstract
Laminin binding integrins α6 (CD49f) and α3 (CD49c) are persistently but differentially expressed in prostate cancer (PCa). Integrin internalization is an important determinant of their cell surface expression and function. Using flow cytometry, and first order kinetic modeling, we quantitated the intrinsic internalization rates of integrin subunits in a single cycle of internalization. In PCa cell line DU145, α6 integrin internalized with a rate constant (kactual ) of 3.25 min-1 , threefold faster than α3 integrin (1.0 min-1 ), 1.5-fold faster than the vitronectin binding αv integrin (CD51) (2.2 min-1 ), and significantly slower than the unrelated transferrin receptor (CD71) (15 min-1 ). Silencing of α3 integrin protein expression in DU145, PC3, and PC3B1 cells resulted in up to a 1.71-fold increase in kactual for α6 integrin. The internalized α6 integrin was targeted to early endosomes but not to lamp1 vesicles. Depletion of α3 integrin expression resulted in redistribution of α6β4 integrin to an observed cell-cell staining pattern that is consistent with a suprabasal distribution observed in epidermis and early PIN lesions in PCa. Depletion of α3 integrin increased cell migration by 1.8-fold, which was dependent on α6β1 integrin. Silencing of α6 integrin expression however, had no significant effect on the kactual of α3 integrin or its distribution in early endosomes. These results indicate that α3 and α6 integrins have significantly different internalization kinetics and that coordination exists between them for internalization. J. Cell. Biochem. 118: 1038-1049, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Lipsa Das
- Department of Cancer Biology, University of Arizona, Tucson, AZ 85724
| | - Todd A. Anderson
- The University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | - Jaime M.C. Gard
- The University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | - Isis C. Sroka
- Department of Pharmacology, University of Arizona, Tucson, AZ 85724
| | | | - Raymond B. Nagle
- Department of Pathology, University of Arizona, Tucson, AZ 85724
- The University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | | | | | - Anne E. Cress
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ 85724
- The University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
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20
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Abstract
Conjugates of cytotoxic agents with RGD peptides (Arg-Gly-Asp) addressed to ανβ3, α5β1 and ανβ6 integrin receptors overexpressed by cancer cells, have recently gained attention as potential selective anticancer chemotherapeutics. In this review, the design and the development of RGD conjugates coupled to different small molecules including known cytotoxic drugs and natural products will be discussed.
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21
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Touihri-Barakati I, Kallech-Ziri O, Boulila A, Khwaldia K, Marrakchi N, Hanchi B, Hosni K, Luis J. Targetting αvβ3 and α5β1 integrins with Ecballium elaterium (L.) A. Rich. seed oil. Biomed Pharmacother 2016; 84:1223-1232. [PMID: 27810778 DOI: 10.1016/j.biopha.2016.10.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/05/2016] [Accepted: 10/11/2016] [Indexed: 01/16/2023] Open
Abstract
In the present study, the effect of Ecbalium elaterium seed oil on adhesion, migration and proliferation of human brain cancer cell line (U87) was determined. Treatment of U87 cell line with the seed oil resulted in strong inhibition of their adhesion to fibrinogen (Fg), fibronectin (Fn). It also reduced their migration and proliferation in a dose-dependent manner without being cytotoxic. Concomitantly, by using Matrigel™ assays, the oil significantly inhibited angiogenesis. The anti- tumor effect of the oil is specifically mediated by αvβ3 and α5β1 integrins. The presence of integrin antagonists in seed oil from E. elaterium could be used for the development of anticancer drugs with targeted "multi-modal" therapies combining anti-adhesif, antiproliferative, antimetastasic and anti-angiogenic, approaches.
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Affiliation(s)
- Imen Touihri-Barakati
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Sidi Thabet, 2020 Ariana, Tunisie.
| | - Olfa Kallech-Ziri
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Sidi Thabet, 2020 Ariana, Tunisie
| | - Abdennacer Boulila
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Sidi Thabet, 2020 Ariana, Tunisie
| | - Khaoula Khwaldia
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Sidi Thabet, 2020 Ariana, Tunisie
| | - Naziha Marrakchi
- Faculté de Médecine de Tunis, La Rabta 1007 Tunis, Tunisie; Laboratoire des Venins et Biomolécules Thérapeutiques, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis Belvédère, Tunisie
| | - Belgacem Hanchi
- Faculté des Sciences de Tunis, Campus Universitaire, Tunis El Manar, 1000 Tunis, Tunisie
| | - Karim Hosni
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Sidi Thabet, 2020 Ariana, Tunisie
| | - José Luis
- Aix-Marseille Université, INSERM UMR 911, Centre de Recherche en Oncologie Biologique et Oncopharmacologie (CRO2), Faculté de Pharmacie, 13385 Marseille, France
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22
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Abstract
Integrins are a family of heterodimeric receptors that bind to components of the extracellular matrix and influence cellular processes as varied as proliferation and migration. These effects are achieved by tight spatiotemporal control over intracellular signalling pathways, including those that mediate cytoskeletal reorganisation. The ability of integrins to bind to ligands is governed by integrin conformation, or activity, and this is widely acknowledged to be an important route to the regulation of integrin function. Over the last 15 years, however, the pathways that regulate endocytosis and recycling of integrins have emerged as major players in controlling integrin action, and studying integrin trafficking has revealed fresh insight into the function of this fascinating class of extracellular matrix receptors, in particular in the context of cell migration and invasion. Here, we review our current understanding of the contribution of integrin trafficking to cell motility.
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Affiliation(s)
- Nikki R Paul
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, M13 9PT, UK
| | - Guillaume Jacquemet
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, M13 9PT, UK
| | - Patrick T Caswell
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, M13 9PT, UK.
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Novel targets for paclitaxel nano formulations: Hopes and hypes in triple negative breast cancer. Pharmacol Res 2016; 111:577-591. [PMID: 27461138 DOI: 10.1016/j.phrs.2016.07.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 07/18/2016] [Accepted: 07/19/2016] [Indexed: 12/30/2022]
Abstract
Triple negative breast cancer is defined as one of the utmost prevailing breast cancers worldwide, possessing an inadequate prognosis and treatment option limited to chemotherapy and radiotherapy, creating a challenge for researchers as far as developing a specific targeted therapy is concerned. The past research era has shown several promising outcomes for TNBC such as nano-formulations of the chemotherapeutic agents already used for the management of the malignant tumor. Taking a glance at paclitaxel nano formulations, it has been proven beneficial in several researches in the past decade; nevertheless its solubility is often a challenge to scientists in achieving success. We have henceforth discussed the basic heterogeneity of triple negative breast cancer along with the current management options as well as a brief outlook on pros and cons of paclitaxel, known as the most widely used chemotherapeutic agent for the treatment of the disease. We further analyzed the need of nanotechnology pertaining to the problems encountered with the current paclitaxel formulations available discussing the strategic progress in various nano-formulations till date taking into account the basic research strategies required in terms of solubility, permeability, physicochemical properties, active and passive targeting. A thorough review in recent advances in active targeting for TNBC was carried out whereby the various ligands which are at present finding its way into TNBC research such as hyaluronic acid, folic acid, transferrin, etc. were discussed. These ligands have specific receptor affinity to TNBC tumor cells hence can be beneficial for novel drug targeting approaches. Conversely, there are currently several novel strategies in the research pipeline whose targeting ligands have not yet been studied. Therefore, we reviewed upon the numerous novel receptor targets along with the respective nano-formulation aspects which have not yet been fully researched upon and could be exemplified as outstanding target strategies for TNBC which is currently an urgent requirement.
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Ortiz R, Díaz J, Díaz N, Lobos-Gonzalez L, Cárdenas A, Contreras P, Díaz MI, Otte E, Cooper-White J, Torres V, Leyton L, Quest AF. Extracellular matrix-specific Caveolin-1 phosphorylation on tyrosine 14 is linked to augmented melanoma metastasis but not tumorigenesis. Oncotarget 2016; 7:40571-40593. [PMID: 27259249 PMCID: PMC5130029 DOI: 10.18632/oncotarget.9738] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 05/16/2016] [Indexed: 12/15/2022] Open
Abstract
Caveolin-1 (CAV1) is a scaffolding protein that plays a dual role in cancer. In advanced stages of this disease, CAV1 expression in tumor cells is associated with enhanced metastatic potential, while, at earlier stages, CAV1 functions as a tumor suppressor. We recently implicated CAV1 phosphorylation on tyrosine 14 (Y14) in CAV1-enhanced cell migration. However, the contribution of this modification to the dual role of CAV1 in cancer remained unexplored. Here, we used in vitro [2D and transendothelial cell migration (TEM), invasion] and in vivo (metastasis) assays, as well as genetic and biochemical approaches to address this question in B16F10 murine melanoma cells. CAV1 promoted directional migration on fibronectin or laminin, two abundant lung extracellular matrix (ECM) components, which correlated with enhanced Y14 phosphorylation during spreading. Moreover, CAV1-driven migration, invasion, TEM and metastasis were ablated by expression of the phosphorylation null CAV1(Y14F), but not the phosphorylation mimicking CAV1(Y14E) mutation. Finally, CAV1-enhanced focal adhesion dynamics and surface expression of beta1 integrin were required for CAV1-driven TEM. Importantly, CAV1 function as a tumor suppressor in tumor formation assays was not altered by the Y14F mutation. In conclusion, our results provide critical insight to the mechanisms of CAV1 action during cancer development. Specific ECM-integrin interactions and Y14 phosphorylation are required for CAV1-enhanced melanoma cell migration, invasion and metastasis to the lung. Because Y14F mutation diminishes metastasis without inhibiting the tumor suppressor function of CAV1, Y14 phosphorylation emerges as an attractive therapeutic target to prevent metastasis without altering beneficial traits of CAV1.
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Affiliation(s)
- Rina Ortiz
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Universidad Bernardo O Higgins, Facultad de Salud, Departamento de Ciencias Químicas y Biológicas, Santiago, Chile
- Biomedical Neuroscience Institute (BNI) Santiago, Chile
| | - Jorge Díaz
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Natalia Díaz
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Biomedical Neuroscience Institute (BNI) Santiago, Chile
| | - Lorena Lobos-Gonzalez
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Andes Biotechnologies SA, Ñuñoa, Santiago, Chile
- Fundación Ciencia & Vida, Ñuñoa, Santiago, Chile
| | - Areli Cárdenas
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Biomedical Neuroscience Institute (BNI) Santiago, Chile
| | - Pamela Contreras
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - María Inés Díaz
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Ellen Otte
- Australian Institute for Bioengineering & Nanotechnology, The University of Queensland, St. Lucia, Queensland, Australia
| | - Justin Cooper-White
- Australian Institute for Bioengineering & Nanotechnology, The University of Queensland, St. Lucia, Queensland, Australia
| | - Vicente Torres
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Lisette Leyton
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Biomedical Neuroscience Institute (BNI) Santiago, Chile
| | - Andrew F.G. Quest
- Center for Molecular Studies of the Cell (CEMC), Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago, Chile
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YU SEONMI, KIM SONGJA. Salinomycin causes migration and invasion of human fibrosarcoma cells by inducing MMP-2 expression via PI3-kinase, ERK-1/2 and p38 kinase pathways. Int J Oncol 2016; 48:2686-92. [DOI: 10.3892/ijo.2016.3448] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/08/2016] [Indexed: 11/06/2022] Open
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Yao Y, Shi M, Liu S, Li Y, Guo K, Ci Y, Liu W, Li Y. MARVELD1 modulates cell surface morphology and suppresses epithelial-mesenchymal transition in non-small cell lung cancer. Mol Carcinog 2015; 55:1714-1727. [PMID: 26509557 DOI: 10.1002/mc.22421] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 10/02/2015] [Accepted: 10/02/2015] [Indexed: 11/11/2022]
Abstract
Integrins have been known to play pivotal roles in malignant progression and epithelial-mesenchymal transition (EMT) of non-small cell lung cancer (NSCLC). We previously demonstrated that MARVELD1, a potential tumor suppressor, is epigenetically silenced in multiple cancer cells. In this study, we found MARVELD1 silencing altered cell surface ultrastructure of NSCLC cells and inhibited the formation of punctate integrin β1/β4 cluster in microvillus, whereas MARVELD1 overexpression suppressed TGF-β1-induced EMT. Remarkably, the balance of integrin β1 and β4 was modulated by MARVELD1. MARVELD1 silencing led to imbalance of integrin β1/β4 and significantly reduced microvillus length, furthermore affected the localization of β1/β4 at microvilli tips. TGF-β1-induced EMT was promoted by MARVELD1 silencing, while rebalance of integrin β1/β4 partly rescued the epithelial phenotype of MARVELD1-silenced cells. Mechanistically, we demonstrate that MARVELD1-mediated balance of integrin β1 and β4 regulates cell surface ultrastructure and EMT phenotype of NSCLC cells, suggesting MARVELD1 has a potential to be developed as a therapeutic target for NSCLC. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Yuanfei Yao
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Ming Shi
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Shanshan Liu
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Yiqun Li
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Kexin Guo
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Yanpeng Ci
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Weizhe Liu
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Yu Li
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China.
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Nimbolide Induces ROS-Regulated Apoptosis and Inhibits Cell Migration in Osteosarcoma. Int J Mol Sci 2015; 16:23405-24. [PMID: 26426012 PMCID: PMC4632706 DOI: 10.3390/ijms161023405] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 09/05/2015] [Accepted: 09/21/2015] [Indexed: 12/15/2022] Open
Abstract
Osteosarcoma (OS) is a primary malignant tumor of bone and is most prevalent in children and adolescents. OS is frequently associated with pulmonary metastasis, which is the main cause of OS-related mortality. OS has a poor prognosis and is often unresponsive to conventional chemotherapy. In this study, we determined that Nimbolide, a novel anti-cancer therapy, acts by modulating multiple mechanisms in osteosarcoma cells. Nimbolide induces apoptosis by increasing endoplasmic reticulum (ER) stress, mitochondrial dysfunction, accumulation of reactive oxygen species (ROS), and finally, caspase activation. We also determined that Nimbolide inhibits cell migration, which is crucial for metastasis, by reducing the expression of integrin αvβ5. In addition, our results demonstrate that integrin αvβ5 expression is modulated by the PI3K/Akt and NF-κB signaling cascade. Nimbolide has potential as an anti-tumor drug given its multifunctional effects in OS. Collectively, these results help us to understand the mechanisms of action of Nimbolide and will aid in the development of effective therapies for OS.
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Djaafri I, Khayati F, Menashi S, Tost J, Podgorniak MP, Sadoux A, Daunay A, Teixeira L, Soulier J, Idbaih A, Setterblad N, Fauvel F, Calvo F, Janin A, Lebbé C, Mourah S. A novel tumor suppressor function of Kindlin-3 in solid cancer. Oncotarget 2015; 5:8970-85. [PMID: 25344860 PMCID: PMC4253411 DOI: 10.18632/oncotarget.2125] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Kindlin-3 (FERMT-3) is known to be central in hemostasis and thrombosis control and its deficiency disrupts platelet aggregation and causes Leukocyte Adhesion Deficiency disease. Here we report that Kindlin-3 has a tumor suppressive role in solid cancer. Our present genetic and functional data show that Kindlin-3 is downregulated in several solid tumors by a mechanism involving gene hypermethylation and deletions. In vivo experiments demonstrated that Kindlin-3 knockdown in 2 tumor cell models (breast cancer and melanoma) markedly increases metastasis formation, in accord with the in vitro increase of tumor cell malignant properties. The metastatic phenotype was supported by a mechanism involving alteration in β3-integrin activation including decreased phosphorylation, interaction with talin and the internalization of its active form leading to less cell attachment and more migration/invasion. These data uncover a novel and unexpected tumor suppressor role of Kindin-3 which can influence integrins targeted therapies development.
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Affiliation(s)
- Ibtissem Djaafri
- Inserm UMR-S 940 Paris, France. Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Farah Khayati
- Inserm UMR-S 940 Paris, France. Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France. AP-HP, Hôpital Saint-Louis, Laboratoire de Pharmacologie-Génétique, Paris, France
| | | | - Jorg Tost
- Laboratory for Epigenetics, Centre National de Génotypage, CEA-Institut de Génomique, Evry, France. Laboratory for Functional Genomics, Fondation Jean Dausset - CEPH, Paris, France
| | | | - Aurelie Sadoux
- Inserm UMR-S 940 Paris, France. AP-HP, Hôpital Saint-Louis, Laboratoire de Pharmacologie-Génétique, Paris, France
| | - Antoine Daunay
- Laboratory for Functional Genomics, Fondation Jean Dausset - CEPH, Paris, France
| | - Luis Teixeira
- AP-HP, Hôpital Saint-Louis, Service d'oncologie médicale, Paris, France
| | - Jean Soulier
- Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France. Hematology Laboratory APHP, Saint-Louis Hospital, Paris, France
| | - Ahmed Idbaih
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, Paris, France. Inserm U 975, Paris, 75013 France, CNRS, UMR, Paris, France
| | - Niclas Setterblad
- Inserm UMR-S 940 Paris, France. Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Françoise Fauvel
- Inserm UMR-S 940 Paris, France. Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Fabien Calvo
- Inserm UMR-S 940 Paris, France. Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Anne Janin
- Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France. Inserm, U728, Paris, France. AP-HP, Hôpital Saint-Louis, Laboratoire de Pathologie, Paris, France
| | - Celeste Lebbé
- Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France. AP-HP, Hôpital Saint-Louis, Département de Dermatologie, Paris, France. Inserm U976, Paris, France
| | - Samia Mourah
- Inserm UMR-S 940 Paris, France. Institute of Hematology (IUH), Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
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Randhawa V, Acharya V. Integrated network analysis and logistic regression modeling identify stage-specific genes in Oral Squamous Cell Carcinoma. BMC Med Genomics 2015; 8:39. [PMID: 26179909 PMCID: PMC4502639 DOI: 10.1186/s12920-015-0114-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 07/06/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is associated with substantial mortality and morbidity but, OSCC can be difficult to detect at its earliest stage due to its molecular complexity and clinical behavior. Therefore, identification of key gene signatures at an early stage will be highly helpful. METHODS The aim of this study was to identify key genes associated with progression of OSCC stages. Gene expression profiles were classified into cancer stage-related modules, i.e., groups of genes that are significantly related to a clinical stage. For prioritizing the candidate genes, analysis was further restricted to genes with high connectivity and a significant association with a stage. To assess predictive power of these genes, a classification model was also developed and tested by 5-fold cross validation and on an independent dataset. RESULTS The identified genes were enriched for significant processes and functional pathways, and various genes were found to be directly implicated in OSCC. Forward and stepwise, multivariate logistic regression analyses identified 13 key genes whose expression discriminated early- and late-stage OSCC with predictive accuracy (area under curve; AUC) of ~0.81 in a 5-fold cross-validation strategy. CONCLUSIONS The proposed network-driven integrative analytical approach can identify multiple genes significantly related to an OSCC stage; the classification model that is developed with these genes may help to distinguish cancer stages. The proposed genes and model hold promise for monitoring of OSCC stage progression, and our findings may facilitate cancer detection at an earlier stage, resulting in improved treatment outcomes.
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Affiliation(s)
- Vinay Randhawa
- Functional Genomics and Complex Systems Laboratory, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial Research, Palampur, Himachal Pradesh, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
| | - Vishal Acharya
- Functional Genomics and Complex Systems Laboratory, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial Research, Palampur, Himachal Pradesh, India. .,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
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Morimatsu M, Mekhdjian AH, Chang AC, Tan SJ, Dunn AR. Visualizing the interior architecture of focal adhesions with high-resolution traction maps. NANO LETTERS 2015; 15:2220-8. [PMID: 25730141 PMCID: PMC5924765 DOI: 10.1021/nl5047335] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Focal adhesions (FAs) are micron-sized protein assemblies that coordinate cell adhesion, migration, and mechanotransduction. How the many proteins within FAs are organized into force sensing and transmitting structures is poorly understood. We combined fluorescent molecular tension sensors with super-resolution light microscopy to visualize traction forces within FAs with <100 nm spatial resolution. We find that αvβ3 integrin selectively localizes to high force regions. Paxillin, which is not generally considered to play a direct role in force transmission, shows a higher degree of spatial correlation with force than vinculin, talin, or α-actinin, proteins with hypothesized roles as force transducers. These observations suggest that αvβ3 integrin and paxillin may play important roles in mechanotransduction.
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Affiliation(s)
| | - Armen H. Mekhdjian
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305
| | - Alice C. Chang
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305
| | - Steven J. Tan
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305
| | - Alexander R. Dunn
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305
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McAtee CO, Berkebile AR, Elowsky CG, Fangman T, Barycki JJ, Wahl JK, Khalimonchuk O, Naslavsky N, Caplan S, Simpson MA. Hyaluronidase Hyal1 Increases Tumor Cell Proliferation and Motility through Accelerated Vesicle Trafficking. J Biol Chem 2015; 290:13144-56. [PMID: 25855794 DOI: 10.1074/jbc.m115.647446] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Indexed: 01/07/2023] Open
Abstract
Hyaluronan (HA) turnover accelerates metastatic progression of prostate cancer in part by increasing rates of tumor cell proliferation and motility. To determine the mechanism, we overexpressed hyaluronidase 1 (Hyal1) as a fluorescent fusion protein and examined its impact on endocytosis and vesicular trafficking. Overexpression of Hyal1 led to increased rates of internalization of HA and the endocytic recycling marker transferrin. Live imaging of Hyal1, sucrose gradient centrifugation, and specific colocalization of Rab GTPases defined the subcellular distribution of Hyal1 as early and late endosomes, lysosomes, and recycling vesicles. Manipulation of vesicular trafficking by chemical inhibitors or with constitutively active and dominant negative Rab expression constructs caused atypical localization of Hyal1. Using the catalytically inactive point mutant Hyal1-E131Q, we found that enzymatic activity of Hyal1 was necessary for normal localization within the cell as Hyal1-E131Q was mainly detected within the endoplasmic reticulum. Expression of a HA-binding point mutant, Hyal1-Y202F, revealed that secretion of Hyal1 and concurrent reuptake from the extracellular space are critical for rapid HA internalization and cell proliferation. Overall, excess Hyal1 secretion accelerates endocytic vesicle trafficking in a substrate-dependent manner, promoting aggressive tumor cell behavior.
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Affiliation(s)
- Caitlin O McAtee
- From the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska 68588
| | - Abigail R Berkebile
- From the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska 68588
| | - Christian G Elowsky
- Morrison Microscopy Facility, University of Nebraska, Lincoln, Nebraska 68588
| | - Teresa Fangman
- Morrison Microscopy Facility, University of Nebraska, Lincoln, Nebraska 68588
| | - Joseph J Barycki
- From the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska 68588
| | - James K Wahl
- Department of Oral Biology, University of Nebraska Medical Center College of Dentistry, Lincoln, Nebraska 68503
| | - Oleh Khalimonchuk
- From the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska 68588
| | - Naava Naslavsky
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, and
| | - Steve Caplan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, and Fred and Pamela Buffett Cancer Center, Omaha, Nebraska 68198
| | - Melanie A Simpson
- From the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska 68588, Fred and Pamela Buffett Cancer Center, Omaha, Nebraska 68198
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32
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Duval C, Zaniolo K, Leclerc S, Salesse C, Guérin SL. Characterization of the human α9 integrin subunit gene: Promoter analysis and transcriptional regulation in ocular cells. Exp Eye Res 2015; 135:146-63. [PMID: 25746835 DOI: 10.1016/j.exer.2015.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/26/2015] [Accepted: 03/02/2015] [Indexed: 11/29/2022]
Abstract
α9β1 is the most recent addition to the integrin family of membrane receptors and consequently remains the one that is the least characterized. To better understand how transcription of the human gene encoding the α9 subunit is regulated, we cloned the α9 promoter and characterized the regulatory elements that are required to ensure its transcription. Transfection of α9 promoter/CAT plasmids in primary cultured human corneal epithelial cells (HCECs) and uveal melanoma cell lines demonstrated the presence of both negative and positive regulatory elements along the α9 promoter and positioned the basal α9 promoter to within 118 bp from the α9 mRNA start site. In vitro DNaseI footprinting and in vivo ChIP analyses demonstrated the binding of the transcription factors Sp1, c-Myb and NFI to the most upstream α9 negative regulatory element. The transcription factors Sp1 and NFI were found to bind the basal α9 promoter individually but Sp1 binding clearly predominates when both transcription factors are present in the same extract. Suppression of Sp1 expression through RNAi also caused a dramatic reduction in the expression of the α9 gene. Most of all, addition of tenascin-C (TNC), the ligand of α9β1, to the tissue culture plates prior to seeding HCECs increased α9 transcription whereas it simultaneously decreased expression of the α5 integrin subunit gene. This dual regulatory action of TNC on the transcription of the α9 and α5 genes suggests that both these integrins must work together to appropriately regulate cell adhesion, migration and differentiation that are hallmarks of tissue wound healing.
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Affiliation(s)
- Céline Duval
- Centre Universitaire d'Ophtalmologie-Recherche, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche FRQS du CHU de Québec, Québec, Canada
| | - Karine Zaniolo
- Centre Universitaire d'Ophtalmologie-Recherche, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche FRQS du CHU de Québec, Québec, Canada
| | - Steeve Leclerc
- Centre Universitaire d'Ophtalmologie-Recherche, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche FRQS du CHU de Québec, Québec, Canada
| | - Christian Salesse
- Centre Universitaire d'Ophtalmologie-Recherche, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche FRQS du CHU de Québec, Québec, Canada; Département d'Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Sylvain L Guérin
- Centre Universitaire d'Ophtalmologie-Recherche, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement, Centre de Recherche FRQS du CHU de Québec, Québec, Canada; Département d'Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC, Canada.
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Ryan GM, Kaminskas LM, Porter CJ. Nano-chemotherapeutics: Maximising lymphatic drug exposure to improve the treatment of lymph-metastatic cancers. J Control Release 2014; 193:241-56. [DOI: 10.1016/j.jconrel.2014.04.051] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 04/21/2014] [Accepted: 04/23/2014] [Indexed: 01/17/2023]
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Heß K, Böger C, Behrens HM, Röcken C. Correlation between the expression of integrins in prostate cancer and clinical outcome in 1284 patients. Ann Diagn Pathol 2014; 18:343-50. [PMID: 25305804 DOI: 10.1016/j.anndiagpath.2014.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/12/2014] [Accepted: 09/17/2014] [Indexed: 11/26/2022]
Abstract
The aim of this study was to investigate the expression of a panel of integrins in prostate cancer in order to explore their potential for tumor biology. Formalin-fixed and paraffin-embedded tissue samples of 1284 prostate cancer patients were retrieved from the archive of the Department of Pathology. Immunostaining was done with rabbit monoclonal antibodies directed against αvβ3, αvβ5, αvβ6, αvβ8, β3, and αv-pan. Staining results were correlated with clinicopathologic patient characteristics and patient survival. Immunostaining of tumor cells performed on whole tissue sections of 52 patients was sparse for αvβ3, αvβ6, and αvβ8, and more prevalent for αvβ5 and αv-pan. αvβ5, αvβ8, and αv-pan were selected for further analyses in tissue microarrays representing the entire study cohort. αvβ8 staining was generally observed in peripheral nerves. αvβ5 and αv-pan provided strong evidence for the differential expression of these integrins in prostate cancer. The expression was variable with regard to the histoanatomical/cytoanatomical localization, cell type, intensity of immunolabeling, and Gleason pattern. αvβ5 and αv-pan are differentially expressed in prostate cancer, and the differentiation of prostate cancer seems to influence integrin expression and subcellular distribution.
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Affiliation(s)
- Katharina Heß
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Christine Böger
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | | | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany.
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Liu X, Zheng N, Shi YN, Yuan J, Li L. Thyroid hormone induced angiogenesis through the integrin αvβ3/protein kinase D/histone deacetylase 5 signaling pathway. J Mol Endocrinol 2014; 52:245-54. [PMID: 24532656 DOI: 10.1530/jme-13-0252] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Thyroid hormone is reported to induce angiogenesis, which is mediated by the membrane receptor integrin αvβ3, but the precise signaling pathway is still not very clear. Recently, studies have shown that protein kinase D (PKD) regulates the recycling of integrin αvβ3, which is required for cell migration. Moreover, phosphorylated PKD stimulates histone deacetylase 5 (HDAC5) phosphorylation and nuclear export in endothelial cells. As a potent pro-angiogenic growth factor, basic fibroblast growth factor (bFGF (FGF2)) is a downstream target gene of HDAC5. Therefore, we examined the hypothesis that a novel signaling pathway through integrin αvβ3/PKD/HDAC5 might contribute to thyroxine (T4)-induced angiogenesis. We selected human umbilical vein endothelial cells (HUVECs) for treatment. Angiogenesis was assessed using wound-healing and tubulogenesis assays. Signaling molecules, including phosphorylated PKD and HDAC5, were measured by western blotting. bFGF mRNA was analyzed by real-time PCR. Our results showed that T4 (100 nmol/l) stimulated the migration and formation of tube-like structures of HUVECs, whereas tetraiodothyroacetic acid (Tetrac, 100 nmol/l) inhibited T4-induced cell migration. Importantly, T4 promoted the phosphorylation of PKD and HDAC5. These effects were inhibited respectively by Tetrac, PKC inhibitor (2.5 μmol/l) and PKD siRNA. Meanwhile, T4 could promote the cytoplasmic accumulation of phosphorylated HDAC5 in HUVECs. In addition, bFGF mRNA expression in HUVECs significantly increased within 2 h of T4 treatment, but was decreased by Tetrac. Our findings indicate that T4 increases the expression of bFGF mRNA via the integrin αvβ3/PKD/HDAC5 signaling pathway, which plays an important role in angiogenesis.
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Affiliation(s)
- Xin Liu
- Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Medical University, 300070 Tianjin, China
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Chan SH, Huang WC, Chang JW, Chang KJ, Kuo WH, Wang MY, Lin KY, Uen YH, Hou MF, Lin CM, Jang TH, Tu CW, Lee YR, Lee YH, Tien MT, Wang LH. MicroRNA-149 targets GIT1 to suppress integrin signaling and breast cancer metastasis. Oncogene 2014; 33:4496-507. [PMID: 24608434 PMCID: PMC4155808 DOI: 10.1038/onc.2014.10] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 11/28/2013] [Accepted: 11/29/2013] [Indexed: 12/16/2022]
Abstract
Metastasis is the predominant cause of death in breast cancer patients. Several lines of evidence have shown that microRNAs (miRs) can have an important role in cancer metastasis. Using isogenic pairs of low and high metastatic lines derived from a human breast cancer line, we have identified miR-149 to be a suppressor of breast cancer cell invasion and metastasis. We also identified GIT1 (G-protein-coupled receptor kinase-interacting protein 1) as a direct target of miR-149. Knockdown of GIT1 reduced migration/invasion and metastasis of highly invasive cells. Re-expression of GIT1 significantly rescued miR-149-mediated inhibition of cell migration/invasion and metastasis. Expression of miR-149 impaired fibronectin-induced focal adhesion formation and reduced phosphorylation of focal adhesion kinase and paxillin, which could be restored by re-expression of GIT1. Inhibition of GIT1 led to enhanced protein degradation of paxillin and α5β1 integrin via proteasome and lysosome pathways, respectively. Moreover, we found that GIT1 depletion in metastatic breast cancer cells greatly reduced α5β1-integrin-mediated cell adhesion to fibronectin and collagen. Low level of miR-149 and high level of GIT1 was significantly associated with advanced stages of breast cancer, as well as with lymph node metastasis. We conclude that miR-149 suppresses breast cancer cell migration/invasion and metastasis by targeting GIT1, suggesting potential applications of the miR-149-GIT1 pathway in clinical diagnosis and therapeutics.
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Affiliation(s)
- S-H Chan
- Institute of Molecular and Genomic Medicine, National Health Research Institute, Miaoli, Taiwan
| | - W-C Huang
- 1] Institute of Molecular and Genomic Medicine, National Health Research Institute, Miaoli, Taiwan [2] Department of Life Science, National Central University, Taoyuan, Taiwan
| | - J-W Chang
- Institute of Molecular and Genomic Medicine, National Health Research Institute, Miaoli, Taiwan
| | - K-J Chang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - W-H Kuo
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - M-Y Wang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - K-Y Lin
- Chi Mei Medical Center, Department of Medical Research, Tainan, Taiwan
| | - Y-H Uen
- Chi Mei Medical Center, Department of Medical Research, Tainan, Taiwan
| | - M-F Hou
- Department of Surgery, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan
| | - C-M Lin
- Institute of Molecular and Genomic Medicine, National Health Research Institute, Miaoli, Taiwan
| | - T-H Jang
- Institute of Molecular and Genomic Medicine, National Health Research Institute, Miaoli, Taiwan
| | - C-W Tu
- Department of Surgery, Chiayi Christian Hospital, Chiayi, Taiwan
| | - Y-R Lee
- Department of Medical Research, Chiayi Christian Hospital, Chiayi, Taiwan
| | - Y-H Lee
- Department of Pathology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - M-T Tien
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - L-H Wang
- 1] Institute of Molecular and Genomic Medicine, National Health Research Institute, Miaoli, Taiwan [2] Department of Life Science, National Central University, Taoyuan, Taiwan [3] Department of Microbiology, Mount Sinai School of Medicine, New York, NY, USA
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Zhao Y, Miao G, Li Y, Isaji T, Gu J, Li J, Qi R. MicroRNA- 130b suppresses migration and invasion of colorectal cancer cells through downregulation of integrin β1 [corrected]. PLoS One 2014; 9:e87938. [PMID: 24498407 PMCID: PMC3912181 DOI: 10.1371/journal.pone.0087938] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 12/03/2013] [Indexed: 01/01/2023] Open
Abstract
MicroRNA 130b (miR-130b) is significantly dysregulated in various human tumor types. In this study, using a microarray assay, we characterized the upregulation of miR-130b expression in colorectal cancer (CRC) specimens. However, there is limited knowledge about the roles of aberrant miR-130b expression in CRC. Our studies in CRC cells demonstrated that miR-130b significantly decreases cell migration and invasion, but it has no evidently effects on cell proliferation and apoptosis. In the overexpression miR-130b CRC cells and the CRC specimens, we observed a decreased level of integrin β1 protein, which is considered as a key molecule involved in cell motility. The targeting of the 3'-UTR region of integrin β1 gene by miR-130b was revealed using a luciferase reporter assay. The regulation of integrin β1 by miR-130b was further shown using the miR-130b mimics and the inhibitor of miR-130b. The impaired motility of the miR-130b overexpression cells is recovered partly by the expression of integrin β1 lacking the 3'-UTR. Additionally, the knockdown of integrin β1 also gives rise to a decrease in cell migration and invasion, which is similar to the impeded motility due to overexpression of miR-130b in CRC cells. Furthermore, the inverse expressions of miR-130b and integrin β1 were observed in CRC specimens. In summary, these data demonstrate that miR-130b downregulates its target-integrin β1, leading to the impaired migration and invasion of CRC cells.
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Affiliation(s)
- Yanyang Zhao
- The Key Laboratory of Geriatrics, Beijing Hospital & Beijing Institute of Geriatrics, Ministry of Health, Beijing, China
| | - Gang Miao
- Department of Surgery, Beijing Hospital, Ministry of Health, Beijing, China
| | - Yao Li
- Department of Surgery, Beijing Hospital, Ministry of Health, Beijing, China
| | - Tomoya Isaji
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, Sendai, Miyagi, Japan
| | - Jianguo Gu
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, Sendai, Miyagi, Japan
| | - Jian Li
- The Key Laboratory of Geriatrics, Beijing Hospital & Beijing Institute of Geriatrics, Ministry of Health, Beijing, China
| | - Ruomei Qi
- The Key Laboratory of Geriatrics, Beijing Hospital & Beijing Institute of Geriatrics, Ministry of Health, Beijing, China
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Havre PA, Dang LH, Ohnuma K, Iwata S, Morimoto C, Dang NH. CD26 expression on T-anaplastic large cell lymphoma (ALCL) line Karpas 299 is associated with increased expression of versican and MT1-MMP and enhanced adhesion. BMC Cancer 2013; 13:517. [PMID: 24180670 PMCID: PMC4228418 DOI: 10.1186/1471-2407-13-517] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 10/30/2013] [Indexed: 12/21/2022] Open
Abstract
Background CD26/dipeptidyl peptidase IV (DPPIV) is a multifunctional membrane protein with a key role in T-cell biology and also serves as a marker of aggressive cancers, including T-cell malignancies. Methods Versican expression was measured by real-time RT-PCR and Western blots. Gene silencing of versican in parental Karpas 299 cells was performed using transduction-ready viral particles. The effect of versican depletion on surface expression of MT1-MMP was monitored by flow cytometry and surface biotinylation. CD44 secretion/cleavage and ERK (1/2) activation was followed by Western blotting. Collagenase I activity was measured by a live cell assay and in vesicles using a liquid-phase assay. Adhesion to collagen I was quantified by an MTS assay. Results Versican expression was down-regulated in CD26-depleted Karpas 299 cells compared to the parental T-ALCL Karpas 299 cells. Knock down of versican in the parental Karpas 299 cells led to decreased MT1-MMP surface expression as well as decreased CD44 expression and secretion of the cleaved form of CD44. Parental Karpas 299 cells also exhibited higher collagenase I activity and greater adhesion to collagenase I than CD26-knockdown or versican-knockdown cells. ERK activation was also highest in parental Karpas 299 cells compared to CD26-knockdown or versican-knockdown clones. Conclusions Our data indicate that CD26 has a key role in cell adhesion and invasion, and potentially in tumorigenesis of T-cell lines, through its association with molecules and signal transduction pathways integral to these processes.
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Affiliation(s)
| | | | | | | | | | - Nam H Dang
- Division of Hematology/Oncology, University of Florida Shands Cancer Center, Gainesville, FL 32610, USA.
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Canel M, Serrels A, Frame MC, Brunton VG. E-cadherin-integrin crosstalk in cancer invasion and metastasis. J Cell Sci 2013; 126:393-401. [PMID: 23525005 DOI: 10.1242/jcs.100115] [Citation(s) in RCA: 468] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
E-cadherin is a single-pass transmembrane protein that mediates homophilic cell-cell interactions. Tumour progression is often associated with the loss of E-cadherin function and the transition to a more motile and invasive phenotype. This requires the coordinated regulation of both E-cadherin-mediated cell-cell adhesions and integrin-mediated adhesions that contact the surrounding extracellular matrix (ECM). Regulation of both types of adhesion is dynamic as cells respond to external cues from the tumour microenvironment that regulate polarity, directional migration and invasion. Here, we review the mechanisms by which tumour cells control the cross-regulation between dynamic E-cadherin-mediated cell-cell adhesions and integrin-mediated cell-matrix contacts, which govern the invasive and metastatic potential of tumours. In particular, we will discuss the role of the adhesion-linked kinases Src, focal adhesion kinase (FAK) and integrin-linked kinase (ILK), and the Rho family of GTPases.
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Affiliation(s)
- Marta Canel
- Edinburgh Cancer Research UK Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XR, UK
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PKD controls αvβ3 integrin recycling and tumor cell invasive migration through its substrate Rabaptin-5. Dev Cell 2013; 23:560-72. [PMID: 22975325 DOI: 10.1016/j.devcel.2012.08.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Revised: 06/05/2012] [Accepted: 08/14/2012] [Indexed: 11/21/2022]
Abstract
Integrin recycling is critical for cell migration. Protein kinase D (PKD) mediates signals from the platelet-derived growth factor receptor (PDGF-R) to control αvβ3 integrin recycling. We now show that Rabaptin-5, a Rab5 effector in endosomal membrane fusion, is a PKD substrate. PKD phosphorylates Rabaptin-5 at Ser407, and this is both necessary and sufficient for PDGF-dependent short-loop recycling of αvβ3, which in turn inhibits α5β1 integrin recycling. Rab4, but not Rab5, interacts with phosphorylated Rabaptin-5 toward the front of migrating cells to promote delivery of αvβ3 to the leading edge, thereby driving persistent cell motility and invasion that is dependent on this integrin. Consistently, disruption of Rabaptin-5 Ser407 phosphorylation reduces persistent cell migration in 2D and αvβ3-dependent invasion. Conversely, invasive migration that is dependent on α5β1 integrin is promoted by disrupting Rabaptin phosphorylation. These findings demonstrate that the PKD pathway couples receptor tyrosine kinase signaling to an integrin switch via Rabaptin-5 phosphorylation.
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Konttinen YT, Kaivosoja E, Stegaev V, Wagner HD, Levón J, Tiainen VM, Mackiewicz Z. Extracellular Matrix and Tissue Regeneration. Regen Med 2013. [DOI: 10.1007/978-94-007-5690-8_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Lu MH, Huang CC, Pan MR, Chen HH, Hung WC. Prospero homeobox 1 promotes epithelial-mesenchymal transition in colon cancer cells by inhibiting E-cadherin via miR-9. Clin Cancer Res 2012; 18:6416-25. [PMID: 23045246 DOI: 10.1158/1078-0432.ccr-12-0832] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE Prospero homeobox 1 (PROX1) has been shown to function as a tumor suppressor in various types of cancer. However, it promotes colon cancer progression. The aim of this study is to clarify the underlying mechanism by which PROX1 regulates tumorigenicity of colon cancer. EXPERIMENTAL DESIGN Association of PROX1 and clinicopathological features was studied by immunohistochemical staining. Pri-miR-9-2 and miR-9 were detected by quantitative real-time PCR. Assays of cell invasion, adhesion, and matrix metalloproteinase activity were used to study PROX1-mediated epithelial-mesenchymal transition (EMT). RESULTS PROX1 was overexpressed in 43% (59/136) of colon cancer tissues and its expression was correlated with E-cadherin downregulation (P = 0.00005), advanced tumor staging (P = 0.005), and lymph node metastasis (P = 0.000009). Enforced expression of PROX1 in DLD-1 cells caused downregulation of E-cadherin and integrins and attenuated cell adhesion. These cells showed increase of matrix metalloproteinase activity and invasive ability. Conversely, knockdown of PROX1 in SW620 cells restored E-cadherin protein expression and reduced invasiveness. Unexpectedly, repression of E-cadherin by PROX1 was not mediated by transcriptional inhibition. We found that PROX1 bound to miR-9-2 promoter and triggered its expression to suppress E-cadherin 3'UTR reporter activity and protein expression. Anti-miR-9 restored E-cadherin in SW620 cells, whereas precursor miR-9 inhibited E-cadherin in PROX1-knockdown cells. The miR-9 level was higher in tumor tissues with high PROX1/low E-cadherin than that of tumor tissues with low PROX1/high E-cadherin. CONCLUSIONS Our results provide mechanistic insights by which PROX1 promotes EMT and colon cancer progression. Targeting of PROX1-mediated oncogenic activity may be helpful for the treatment of colon cancer.
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Affiliation(s)
- Mei-Hsuan Lu
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Taiwan
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Danhier F, Le Breton A, Préat V. RGD-based strategies to target alpha(v) beta(3) integrin in cancer therapy and diagnosis. Mol Pharm 2012; 9:2961-73. [PMID: 22967287 DOI: 10.1021/mp3002733] [Citation(s) in RCA: 699] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The integrin α(v)β(3) plays an important role in angiogenesis. It is expressed on tumoral endothelial cells as well as on some tumor cells. RGD peptides are well-known to bind preferentially to the α(v)β(3) integrin. In this context, targeting tumor cells or tumor vasculature by RGD-based strategies is a promising approach for delivering anticancer drugs or contrast agents for cancer therapy and diagnosis. RGD-based strategies include antagonist drugs (peptidic or peptidomimetic) of the RGD sequence, RGD-conjugates, and the grafting of the RGD peptide or peptidomimetic, as targeting ligand, at the surface of nanocarriers. Although all strategies are overviewed, this review aims to particularly highlight the position of RGD-based nanoparticles in cancer therapy and imaging. This review is divided into three parts: the first one describes the context of angiogenesis, the role of the integrin α(v)β(3), and the binding of the RGD peptide to this integrin; the second one focuses on RGD-based strategies in cancer therapy; while the third one focuses on RGD-based strategies in cancer diagnosis.
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Affiliation(s)
- Fabienne Danhier
- Université catholique de Louvain, Pharmaceutics and Drug Delivery, Louvain Drug Research Institute, Avenue E. Mounier, 73 B1 73 12, B-1200, Brussels, Belgium
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Duleh SN, Welch MD. Regulation of integrin trafficking, cell adhesion, and cell migration by WASH and the Arp2/3 complex. Cytoskeleton (Hoboken) 2012; 69:1047-58. [PMID: 23012235 DOI: 10.1002/cm.21069] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 08/30/2012] [Accepted: 08/31/2012] [Indexed: 11/05/2022]
Abstract
WASH is a nucleation-promoting factor for the Arp2/3 complex that is implicated in multiple endocytic trafficking pathways including receptor recycling, cargo degradation, and retromer-mediated receptor retrieval. We sought to examine whether WASH plays an important role in trafficking of specialized cargo molecules such as integrins, for which trafficking is highly regulated during cell migration. We observed that subdomains of early/sorting endosomes associated with dynamic WASH and filamentous actin, and α5-integrins trafficked through this population of endosomes. Depletion of WASH caused accumulation of α5-integrins in intracellular compartments, reduction of α5-integrin localization at focal adhesions, and reduction in focal adhesion number. Transport of α5-integrins from internal endocytic structures to focal adhesions was disrupted upon WASH depletion or Arp2/3 complex inhibition. Furthermore, WASH-depleted cells displayed greatly reduced affinity for specific extracellular matrix proteins including fibronectin and impaired cell spreading ability. Interestingly, the reduced adhesion capacity of WASH-depleted cells resulted in their migrating more rapidly than control cells in wound healing assays. Our results define a requirement for WASH, Arp2/3 complex, and actin in specialized trafficking of integrins. These findings highlight a role for actin dynamics in influencing cell adhesion and migration via endocytic trafficking of integrins, in addition to the well-established role of actin in plasma membrane dynamics and contractility. © 2012 Wiley Periodicals, Inc.
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Affiliation(s)
- Steve N Duleh
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
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Targeting αV-integrins decreased metastasis and increased survival in a nude rat breast cancer brain metastasis model. J Neurooncol 2012; 110:27-36. [PMID: 22842979 DOI: 10.1007/s11060-012-0942-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 07/13/2012] [Indexed: 01/22/2023]
Abstract
Brain metastases commonly occur in patients with breast, lung and melanoma systemic cancers. The anti-α(V) integrin monoclonal antibody intetumumab binds cell surface proteins important for adhesion, invasion and angiogenesis in the metastatic cascade. The objective of this study was to investigate the anti-metastatic effect of intetumumab in a hematogenous breast cancer brain metastasis model. Female nude rats received intra-carotid infusion of human brain-seeking metastatic breast cancer cells (231BR-HER2) and were randomly assigned into four groups: (1) control; (2) intetumumab mixed with cells in vitro 5 min before infusion without further treatment; (3) intetumumab intravenously 4 h before and weekly after cell infusion; (4) intetumumab intravenously weekly starting 7 days after cell infusion. Brain metastases were detected by magnetic resonance imaging (MRI) and immunohistochemistry. Comparisons were made using the Kruskal-Wallis test and Dunnett's test. Survival times were estimated using Kaplan-Meier analysis. All control rats with brain tissue available for histology (9 of 11 rats) developed multiple brain metastases (median = 14). Intetumumab treatment either in vitro prior to cell infusion or intravenous before or after cell infusion prevented metastasis formation on MRI and decreased the number of metastases on histology (median = 2, p = 0.0055), including 30 % of animals without detectable tumors at the end of the study. The overall survival was improved by intetumumab compared to controls (median 77+ vs. 52 days, p = 0.0277). Our results suggest that breast cancer patients at risk of metastases might benefit from early intetumumab treatment.
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Goc A, Liu J, Byzova TV, Somanath PR. Akt1 mediates prostate cancer cell microinvasion and chemotaxis to metastatic stimuli via integrin β₃ affinity modulation. Br J Cancer 2012; 107:713-23. [PMID: 22767145 PMCID: PMC3419951 DOI: 10.1038/bjc.2012.295] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Background: Activation of Akt and increased expression of integrin β3 are the two most important changes that have been linked to the attainment of metastatic potential by prostate cancer cells. However, a direct link between Akt activity and inside-out activation of integrin β3 in mediating prostate cancer cell metastatic properties is not established. Methods: Using functional and biochemical approaches, we examined the role of Akt1 in the affinity modulation of integrin β3 in prostate cancer cells. Results: Although expression of murine TRAMP and human PC3 cells with constitutively active Akt1 (CA-Akt1) enhanced their affinity for integrin αvβ3 specific ligands and motility on various extracellular matrix proteins, the reverse was observed with the expression of dominant-negative Akt1 (DN-Akt1). Although enhanced motility and transendothelial migration of CA-Akt1-expressing cells were blunted by co-expression with DN-integrin β3 or upon pre-treatment with integrin β3-blocking antibodies (LM 609), impaired motility and transendothelial migration of DN-Akt1-expressing cells were rescued by pre-treatment of prostate cancer cells with integrin β3-activating antibodies, AP7.4. Conclusion: Our data is the first to demonstrate a link between Akt1 activity and affinity modulation of integrin β3 in the regulation of prostate cancer cell motility, transendothelial migration and chemotaxis to metastatic stimuli.
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Affiliation(s)
- A Goc
- Program in Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Georgia Health Sciences University, HM1200, Augusta, GA 30912, USA
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Focal adhesion-chromatin linkage controls tumor cell resistance to radio- and chemotherapy. CHEMOTHERAPY RESEARCH AND PRACTICE 2012; 2012:319287. [PMID: 22778951 PMCID: PMC3385588 DOI: 10.1155/2012/319287] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 04/17/2012] [Accepted: 05/07/2012] [Indexed: 11/29/2022]
Abstract
Cancer resistance to therapy presents an ongoing and unsolved obstacle, which has clear impact on patient's survival. In order to address this problem, novel in vitro models have been established and are currently developed that enable data generation in a more physiological context. For example, extracellular-matrix- (ECM-) based scaffolds lead to the identification of integrins and integrin-associated signaling molecules as key promoters of cancer cell resistance to radio- and chemotherapy as well as modern molecular agents. In this paper, we discuss the dynamic nature of the interplay between ECM, integrins, cytoskeleton, nuclear matrix, and chromatin organization and how this affects the response of tumor cells to various kinds of cytotoxic anticancer agents.
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Schreiner S, Wimmer P, Dobner T. Adenovirus degradation of cellular proteins. Future Microbiol 2012; 7:211-25. [PMID: 22324991 DOI: 10.2217/fmb.11.153] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Eukaryotic cells orchestrate constant synthesis and degradation of intracellular components, including soluble proteins and organelles. The two major intracellular degradation pathways are the ubiquitin/proteasome system and autophagy. Whereas ubiquitin/proteasome system is involved in rapid degradation of proteins, autophagy selectively removes protein aggregates and damaged organelles. Failure of these highly adjusted proteolytic systems to maintain basal turnover leads to altered cellular homeostasis. During evolution, certain viruses have developed mechanisms to exploit their functions to facilitate their own replication, prevent viral clearance and promote the outcome of infection. In this article, we summarize the current opinion on adenoviruses (Ad) and molecular host cell targets, extending on recent evidences for protein degradation pathways in infected cells. We describe recently identified connections between Ad-mediated proteolysis and viral replication with main emphasis on the function of certain Ad proteins.
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Affiliation(s)
- Sabrina Schreiner
- Heinrich-Pette-Institute, Leibniz-Institute for Experimental Virology, Martinistrasse 52, 20251 Hamburg, Germany. sabrina.schreiner@hpi. uni-hamburg.de
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Fang IJ, Slowing II, Wu KCW, Lin VSY, Trewyn BG. Ligand Conformation Dictates Membrane and Endosomal Trafficking of Arginine-Glycine-Aspartate (RGD)-Functionalized Mesoporous Silica Nanoparticles. Chemistry 2012; 18:7787-92. [DOI: 10.1002/chem.201200023] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Indexed: 01/07/2023]
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Høye AM, Couchman JR, Wewer UM, Fukami K, Yoneda A. The newcomer in the integrin family: integrin α9 in biology and cancer. Adv Biol Regul 2012; 52:326-339. [PMID: 22781746 DOI: 10.1016/j.jbior.2012.03.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 03/23/2012] [Indexed: 06/01/2023]
Abstract
Integrins are heterodimeric transmembrane receptors regulating cell-cell and cell-extracellular matrix interactions. Of the 24 integrin heterodimers identified in humans, α9β1 integrin is one of the least studied. α9, together with α4, comprise a more recent evolutionary sub-family of integrins that is only found in vertebrates. Since α9 was thought to have similar functions as α4, due to many shared ligands, it was a rather overlooked integrin until recently, when its importance for survival after birth was highlighted upon investigation of the α9 knockout mouse. α9β1 is expressed on a wide variety of cell types, interacts with many ligands for example fibronectin, tenascin-C and ADAM12, and has been shown to have important functions in processes such as cell adhesion and migration, lung development, lymphatic and venous valve development, and in wound healing. This has sparked an interest to investigate α9β1-mediated signaling and its regulation. This review gives an overview of the recent progress in α9β1-mediated biological and pathological processes, and discusses its potential as a target for cancer diagnosis and therapy.
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Affiliation(s)
- Anette M Høye
- Department of Biomedical Sciences, The Faculty of Health and Medical Sciences, and Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen Biocenter, Ole Maaløes Vej 5, Copenhagen N 2200, Denmark
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