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Ji J, Chen D, Ni J, Chang F. Research Advances in Vascular Remodeling in Choke Vessels of Perforator Flap: A Systematic Review. Ann Plast Surg 2024; 93:268-275. [PMID: 38775375 DOI: 10.1097/sap.0000000000003980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
BACKGROUND As a significant bridge between perforasomes, choke vessels are the key structure of blood supply expansion, also a prerequisite for preventing distal ischemic necrosis of the multiterritory perforator flap, where the remodeling of choke vessels after flap elevation plays an essential role. This systematic review highlights the underlying mechanisms and clinical ways to promote remodeling of choke vessels, as well as experimental observation approaches to further guide researchers. METHODS A systematic review was conducted from 1975 to 2023 through PubMed, EMBASE, Web of Science, and Cochrane database with the key words "choke vessels" and "perforator flap" to investigate the mechanisms and ways to promote remodeling of choke vessels as well as observation approaches. The inclusion criteria and exclusion criteria were set to screen the literature. RESULTS A total of 94 literatures were obtained through database retrieval. After removing the duplicate literature, reading the title and abstract, and reviewing the full text finally, 33 articles were included in the final study. CONCLUSIONS The underlying remodeling of choke vessels may be related to fluid shear stress, hypoxia, and inflammation. The clinical ways to promote remodeling of choke vessels include surgical delay, arterial supercharge, venous superdrainage, drugs, and stem cells. Various experimental methods of observing microvascular morphology allow for a comprehensive research of choke vessels.
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Affiliation(s)
- Jiahao Ji
- From the Department of Plastic and Burns Surgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
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2
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Alonso-García M, Gutiérrez-Gil B, Pelayo R, Fonseca PAS, Marina H, Arranz JJ, Suárez-Vega A. A meta-analysis approach for annotation and identification of lncRNAs controlling perirenal fat deposition in suckling lambs. Anim Biotechnol 2024; 35:2374328. [PMID: 39003576 DOI: 10.1080/10495398.2024.2374328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2024]
Abstract
Long non-coding RNAs (lncRNAs) are being studied in farm animals due to their association with traits of economic interest, such as fat deposition. Based on the analysis of perirenal fat transcriptomes, this research explored the relevance of these regulatory elements to fat deposition in suckling lambs. To that end, meta-analysis techniques have been implemented to efficiently characterize and detect differentially expressed transcripts from two different RNA-seq datasets, one including samples of two sheep breeds that differ in fat deposition features, Churra and Assaf (n = 14), and one generated from Assaf suckling lambs with different fat deposition levels (n = 8). The joint analysis of the 22 perirenal fat RNA-seq samples with the FEELnc software allowed the detection of 3953 novel lncRNAs. After the meta-analysis, 251 differentially expressed genes were identified, 21 of which were novel lncRNAs. Additionally, a co-expression analysis revealed that, in suckling lambs, lncRNAs may play a role in controlling angiogenesis and thermogenesis, processes highlighted in relation to high and low fat deposition levels, respectively. Overall, while providing information that could be applied for the improvement of suckling lamb carcass traits, this study offers insights into the biology of perirenal fat deposition regulation in mammals.
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Affiliation(s)
- María Alonso-García
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Beatriz Gutiérrez-Gil
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Rocío Pelayo
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Pablo A S Fonseca
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Héctor Marina
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Juan José Arranz
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Aroa Suárez-Vega
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad de León, León, Spain
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3
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You Z, Gao X, Kang X, Yang W, Xiong T, Li Y, Wei F, Zhuang Y, Zhang T, Sun Y, Shen H, Dai J. Microvascular endothelial cells derived from spinal cord promote spinal cord injury repair. Bioact Mater 2023; 29:36-49. [PMID: 37621772 PMCID: PMC10444976 DOI: 10.1016/j.bioactmat.2023.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/06/2023] [Accepted: 06/23/2023] [Indexed: 08/26/2023] Open
Abstract
Neural regeneration after spinal cord injury (SCI) closely relates to the microvascular endothelial cell (MEC)-mediated neurovascular unit formation. However, the effects of central nerve system-derived MECs on neovascularization and neurogenesis, and potential signaling involved therein, are unclear. Here, we established a primary spinal cord-derived MECs (SCMECs) isolation with high cell yield and purity to describe the differences with brain-derived MECs (BMECs) and their therapeutic effects on SCI. Transcriptomics and proteomics revealed differentially expressed genes and proteins in SCMECs were involved in angiogenesis, immunity, metabolism, and cell adhesion molecular signaling was the only signaling pathway enriched of top 10 in differentially expressed genes and proteins KEGG analysis. SCMECs and BMECs could be induced angiogenesis by different stiffness stimulation of PEG hydrogels with elastic modulus 50-1650 Pa for SCMECs and 50-300 Pa for BMECs, respectively. Moreover, SCMECs and BMECs promoted spinal cord or brain-derived NSC (SNSC/BNSC) proliferation, migration, and differentiation at different levels. At certain dose, SCMECs in combination with the NeuroRegen scaffold, showed higher effectiveness in the promotion of vascular reconstruction. The potential underlying mechanism of this phenomenon may through VEGF/AKT/eNOS- signaling pathway, and consequently accelerated neuronal regeneration and functional recovery of SCI rats compared to BMECs. Our findings suggested a promising role of SCMECs in restoring vascularization and neural regeneration.
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Affiliation(s)
- Zhifeng You
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Xu Gao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Xinyi Kang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Wen Yang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Tiandi Xiong
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Yue Li
- i-Lab, Key Laboratory of Multifunction Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Feng Wei
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Yan Zhuang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Ting Zhang
- i-Lab, Key Laboratory of Multifunction Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yifu Sun
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - He Shen
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Jianwu Dai
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
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Gandhi GR, Antony PJ, Lana MJMDP, da Silva BFX, Oliveira RV, Jothi G, Hariharan G, Mohana T, Gan RY, Gurgel RQ, Cipolotti R, Quintans LJ. Natural products modulating interleukins and other inflammatory mediators in tumor-bearing animals: A systematic review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 100:154038. [PMID: 35358934 DOI: 10.1016/j.phymed.2022.154038] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 02/28/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Cancer is a group of diseases characterized by abnormal cell growth and proliferation. Natural products are a potentially important source for bioactive phytochemicals in the management of cancer, which regulate a broad range of biological events via the modulation of interleukins (ILs), pro- and anti-inflammatory modulators, and other cancer hallmark-mediated signaling pathways. PURPOSE To systematically review the literature to identify in vivo studies investigating the anticancer properties of medicinal plants and natural molecules as modulators of ILs and their related pro- and anti-inflammatory signaling markers in tumor-bearing animals. METHODS Articles published in English were searched, without any constraint in respect of countries. The electronic databases PubMed, Embase, Scopus, and Web of Science were used for the literature search for studies published between January 2010 and January 2022. The search terms used included medicinal plants, anticancer, antineoplasic agent, ILs, cytokine, and their combinations. A manual search to detect any articles not found in the databases was also made. The identified studies were then critically reviewed and relevant data were extracted and summarized. RESULTS Natural products were found to modulate ILs, including IL-1β, IL-2, IL-4, IL-6, IL-8, IL-18, IL-23, and IL-12, and interferon gamma; increase tissue inhibitor metalloprotease; decrease vascular endothelial growth factor, tumor necrosis factor alpha, granulocyte macrophage colony-stimulating factor, and nuclear factor kappa B; augment immunity by increasing the major histocompatibility complexes II and CD4+, cluster of differentiation 8 + T cell and class II trans-activator expression; and heighten the action of antioxidant enzymes, which are involved in the detoxification of free radicals and reactive oxygen species. CONCLUSION Natural products discussed in this review show great potential to regulate ILs and weaken associated pro- and anti-inflammatory signaling markers in tumor-bearing animals. Flavonoids, polyphenols, polysaccharides, alkaloids and tannins are important phytochemicals in the modulation of ILs, especially pro-inflammatory ones. However, in terms of future research, the importance of clinical trials to investigate their beneficial properties should be warranted.
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Affiliation(s)
- Gopalsamy Rajiv Gandhi
- Postgraduate Program in Health Sciences, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil.
| | | | | | | | - Roberta Vieira Oliveira
- Department of Medicine, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil
| | - Gnanasekaran Jothi
- Department of Biochemistry, Srimad Andavan Arts and Science College (Autonomous) (Affiliated to Bharathidasan University), Tiruchirappalli 620005, Tamil Nadu, India
| | - Govindasamy Hariharan
- Department of Biochemistry, Srimad Andavan Arts and Science College (Autonomous) (Affiliated to Bharathidasan University), Tiruchirappalli 620005, Tamil Nadu, India
| | - Thiruchenduran Mohana
- Department of Biochemistry, Madha Dental College and Hospital, Kundrathur 600069, Chennai, India
| | - Ren-You Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, National Agricultural Science & Technology Center, Chengdu 610213, China; Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industralization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Ricardo Queiroz Gurgel
- Postgraduate Program in Health Sciences, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil; Department of Medicine, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil.
| | - Rosana Cipolotti
- Postgraduate Program in Health Sciences, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil; Department of Medicine, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil
| | - Lucindo José Quintans
- Postgraduate Program in Health Sciences, Federal University of Sergipe, Prof. João Cardoso Nascimento Campus, Aracaju, Sergipe 49060-108, Brazil.
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Yin M, Li C, Jiang J, Le J, Luo B, Yang F, Fang Y, Yang M, Deng Z, Ni W, Shao J. Cell adhesion molecule-mediated therapeutic strategies in atherosclerosis: From a biological basis and molecular mechanism to drug delivery nanosystems. Biochem Pharmacol 2021; 186:114471. [PMID: 33587918 DOI: 10.1016/j.bcp.2021.114471] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/30/2021] [Accepted: 02/08/2021] [Indexed: 01/13/2023]
Abstract
Atherosclerosis (AS), characterized by pathological constriction of blood vessels due to chronic low-grade inflammation and lipid deposition, is a leading cause of human morbidity and mortality worldwide. Cell adhesion molecules (CAMs) have the ability to regulate the inflammatory response and endothelial function, as well as potentially driving plaque rupture, which all contribute to the progression of AS. Moreover, recent advances in the development of clinical agents in the cardiovascular field are based on CAMs, which show promising results in the fight against AS. Here, we review the current literature on mechanisms by which CAMs regulate atherosclerotic progression from the earliest induction of inflammation to plaques formation. In particular, we focused on therapeutic strategies based on CAMs inhibitors that prevent leukocyte from migrating to endothelium, including high-affinity antibodies and antagonists, nonspecific traditional medicinal formulas and lipid lowering drugs. The CAMs-based drug delivery nanosystem and the available data on the more reasonable and effective clinical application of CAMs inhibitors have been emphasized, raising hope for further progress in the field of AS therapy.
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Affiliation(s)
- Mengdie Yin
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Chao Li
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Jiali Jiang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Jingqing Le
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Bangyue Luo
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Fang Yang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Yifan Fang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Mingyue Yang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Zhenhua Deng
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Wenxin Ni
- Ocean College, Minjiang University, Fuzhou 350108, China
| | - Jingwei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
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Desjarlais M, Dussault S, Rivera JC, Chemtob S, Rivard A. MicroRNA Expression Profiling of Bone Marrow-Derived Proangiogenic Cells (PACs) in a Mouse Model of Hindlimb Ischemia: Modulation by Classical Cardiovascular Risk Factors. Front Genet 2020; 11:947. [PMID: 32973881 PMCID: PMC7472865 DOI: 10.3389/fgene.2020.00947] [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: 04/14/2020] [Accepted: 07/28/2020] [Indexed: 12/11/2022] Open
Abstract
Background Classical cardiovascular risk factors (CRFs) are associated with impaired angiogenic activities of bone marrow–derived proangiogenic cells (PACs) related to peripheral artery diseases (PADs) and ischemia-induced neovascularization. MicroRNAs (miRs) are key regulators of gene expression, and they are involved in the modulation of PAC function and PAC paracrine activity. However, the effects of CRFs on the modulation of miR expression in PACs are unknown. Aims and Methods We used a model of hindlimb ischemia and next-generation sequencing to perform a complete profiling of miRs in PACs isolated from the bone marrow of mice subjected to three models of CRFs: aging, smoking (SMK) and hypercholesterolemia (HC). Results Approximately 570 miRs were detected in PACs in the different CRF models. When excluding miRs with a very low expression level (<100 RPM), 40 to 61 miRs were found to be significantly modulated by aging, SMK, or HC. In each CRF condition, we identified downregulated proangiogenic miRs and upregulated antiangiogenic miRs that could contribute to explain PAC dysfunction. Interestingly, several miRs were similarly downregulated (e.g., miR-542-3p, miR-29) or upregulated (e.g., miR-501, miR-92a) in all CRF conditions. In silico approaches including Kyoto Encyclopedia of Genes and Genomes and cluster dendogram analyses identified predictive effects of these miRs on pathways having key roles in the modulation of angiogenesis and PAC function, including vascular endothelial growth factor signaling, extracellular matrix remodeling, PI3K/AKT/MAPK signaling, transforming growth factor beta (TGFb) pathway, p53, and cell cycle progression. Conclusion This study describes for the first time the effects of CRFs on the modulation of miR profile in PACs related to PAD and ischemia-induced neovascularization. We found that several angiogenesis-modulating miRs are similarly altered in different CRF conditions. Our findings constitute a solid framework for the identification of miRs that could be targeted in PACs in order to improve their angiogenic function and for the future development of novel therapies to improve neovascularization and reduce tissue damage in patients with severe PAD.
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Affiliation(s)
- Michel Desjarlais
- Department of Medicine, Centre Hospitalier de l'Université de Montréal (CHUM) Research Center, Montréal, QC, Canada.,Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada
| | - Sylvie Dussault
- Department of Medicine, Centre Hospitalier de l'Université de Montréal (CHUM) Research Center, Montréal, QC, Canada
| | - José Carlos Rivera
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada.,Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC, Canada
| | - Sylvain Chemtob
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada.,Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC, Canada
| | - Alain Rivard
- Department of Medicine, Centre Hospitalier de l'Université de Montréal (CHUM) Research Center, Montréal, QC, Canada
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Borah S, Vasudevan D, Swain RK. C-type lectin family XIV members and angiogenesis. Oncol Lett 2019; 18:3954-3962. [PMID: 31579078 DOI: 10.3892/ol.2019.10760] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/29/2019] [Indexed: 12/21/2022] Open
Abstract
The growth and metastasis of tumors is dependent on angiogenesis. C-type lectins are carbohydrate-binding proteins with a diverse range of functions. The C-type lectin family XIV members are transmembrane glycoproteins, and all four members of this family have been reported to regulate angiogenesis, although the detailed mechanism of action has yet to be completely elucidated. They interact with extracellular matrix proteins and mediate cell-cell adhesion by their lectin-like domain. The aim of the present study was to summarize the available information on the function and mechanism of C-type lectin family XIV in angiogenesis and discuss their potential as targets for cancer therapy.
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Affiliation(s)
- Supriya Borah
- Institute of Life Sciences, Bhubaneswar, Odisha 751023, India.,Department of Biotechnology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | | | - Rajeeb K Swain
- Institute of Life Sciences, Bhubaneswar, Odisha 751023, India
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8
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Heitzig N, Brinkmann BF, Koerdt SN, Rosso G, Shahin V, Rescher U. Annexin A8 promotes VEGF-A driven endothelial cell sprouting. Cell Adh Migr 2017; 11:275-287. [PMID: 28060564 DOI: 10.1080/19336918.2016.1264559] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
The physiological and pathological process of angiogenesis relies on orchestrated endothelial cell (EC) adhesion, migration and formation of new vessels. Here we report that human umbilical vein endothelial cells (HUVECs) deficient in Annexin A8 (AnxA8), a member of the annexin family of Ca2+- and membrane binding proteins, are strongly deficient in their ability to sprout in response to vascular endothelial growth factor (VEGF)-A, and are strongly impaired in their ability to migrate and adhere to β1 integrin-binding extracellular matrix (ECM) proteins. We find that these cells are defective in the formation of complexes containing the tetraspanin CD63, the main VEGF-A receptor VEGFR2, and the β1 integrin subunit, on the cell surface. We observe that upon VEGF-A activation of AnxA8-depleted HUVECs, VEGFR2 internalization is reduced, phosphorylation of VEGFR2 is increased, and the spatial distribution of Tyr577-phosphorylated focal adhesion kinase (pFAK577) is altered. We conclude that AnxA8 affects CD63/VEGFR2/β1 integrin complex formation, leading to hyperactivation of the VEGF-A signal transduction pathway, and severely disturbed VEGF-A-driven angiogenic sprouting.
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Affiliation(s)
- Nicole Heitzig
- a Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation, and Interdisciplinary Clinical Research Center , University of Münster , Münster , Germany
| | - Benjamin F Brinkmann
- a Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation, and Interdisciplinary Clinical Research Center , University of Münster , Münster , Germany
| | - Sophia N Koerdt
- a Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation, and Interdisciplinary Clinical Research Center , University of Münster , Münster , Germany
| | - Gonzalo Rosso
- b Institute of Physiology II , University of Münster , Münster , Germany
| | - Victor Shahin
- b Institute of Physiology II , University of Münster , Münster , Germany
| | - Ursula Rescher
- a Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation, and Interdisciplinary Clinical Research Center , University of Münster , Münster , Germany
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Mas-Moruno C, Fraioli R, Rechenmacher F, Neubauer S, Kapp TG, Kessler H. αvβ3- or α5β1-Integrin-Selective Peptidomimetics for Surface Coating. Angew Chem Int Ed Engl 2016; 55:7048-67. [PMID: 27258759 DOI: 10.1002/anie.201509782] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Indexed: 12/21/2022]
Abstract
Engineering biomaterials with integrin-binding activity is a very powerful approach to promote cell adhesion, modulate cell behavior, and induce specific biological responses at the surface level. The aim of this Review is to illustrate the evolution of surface-coating molecules in this field: from peptides and proteins with relatively low integrin-binding activity and receptor selectivity to highly active and selective peptidomimetic ligands. In particular, we will bring into focus the difficult challenge of achieving selectivity between the two closely related integrin subtypes αvβ3 and α5β1. The functionalization of surfaces with such peptidomimetics opens the way for a new generation of highly specific cell-instructive surfaces to dissect the biological role of integrin subtypes and for application in tissue engineering and regenerative medicine.
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Affiliation(s)
- Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering, Universitat Politècnica de Catalunya (UPC), Diagonal 647, 08028, Barcelona, Spain.
| | - Roberta Fraioli
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering, Universitat Politècnica de Catalunya (UPC), Diagonal 647, 08028, Barcelona, Spain
| | - Florian Rechenmacher
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Stefanie Neubauer
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Tobias G Kapp
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Horst Kessler
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM), Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany.
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10
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Mas-Moruno C, Fraioli R, Rechenmacher F, Neubauer S, Kapp TG, Kessler H. αvβ3- oder α5β1-Integrin-selektive Peptidmimetika für die Oberflächenbeschichtung. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201509782] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering; Universitat Politècnica de Catalunya (UPC); Diagonal 647 08028 Barcelona Spanien
| | - Roberta Fraioli
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering and Centre for Research in NanoEngineering; Universitat Politècnica de Catalunya (UPC); Diagonal 647 08028 Barcelona Spanien
| | - Florian Rechenmacher
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Stefanie Neubauer
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Tobias G. Kapp
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Horst Kessler
- Institute for Advanced Study at the Department Chemie und Center of Integrated Protein Science München (CIPSM); Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
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Zanotelli MR, Ardalani H, Zhang J, Hou Z, Nguyen EH, Swanson S, Nguyen BK, Bolin J, Elwell A, Bischel LL, Xie AW, Stewart R, Beebe DJ, Thomson JA, Schwartz MP, Murphy WL. Stable engineered vascular networks from human induced pluripotent stem cell-derived endothelial cells cultured in synthetic hydrogels. Acta Biomater 2016; 35:32-41. [PMID: 26945632 PMCID: PMC4829480 DOI: 10.1016/j.actbio.2016.03.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 02/28/2016] [Accepted: 03/01/2016] [Indexed: 02/08/2023]
Abstract
Here, we describe an in vitro strategy to model vascular morphogenesis where human induced pluripotent stem cell-derived endothelial cells (iPSC-ECs) are encapsulated in peptide-functionalized poly(ethylene glycol) (PEG) hydrogels, either on standard well plates or within a passive pumping polydimethylsiloxane (PDMS) tri-channel microfluidic device. PEG hydrogels permissive towards cellular remodeling were fabricated using thiol-ene photopolymerization to incorporate matrix metalloproteinase (MMP)-degradable crosslinks and CRGDS cell adhesion peptide. Time lapse microscopy, immunofluorescence imaging, and RNA sequencing (RNA-Seq) demonstrated that iPSC-ECs formed vascular networks through mechanisms that were consistent with in vivo vasculogenesis and angiogenesis when cultured in PEG hydrogels. Migrating iPSC-ECs condensed into clusters, elongated into tubules, and formed polygonal networks through sprouting. Genes upregulated for iPSC-ECs cultured in PEG hydrogels relative to control cells on tissue culture polystyrene (TCP) surfaces included adhesion, matrix remodeling, and Notch signaling pathway genes relevant to in vivo vascular development. Vascular networks with lumens were stable for at least 14days when iPSC-ECs were encapsulated in PEG hydrogels that were polymerized within the central channel of the microfluidic device. Therefore, iPSC-ECs cultured in peptide-functionalized PEG hydrogels offer a defined platform for investigating vascular morphogenesis in vitro using both standard and microfluidic formats. STATEMENT OF SIGNIFICANCE Human induced pluripotent stem cell-derived endothelial cells (iPSC-ECs) cultured in synthetic hydrogels self-assemble into capillary networks through mechanisms consistent with in vivo vascular morphogenesis.
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Affiliation(s)
- Matthew R Zanotelli
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA
| | - Hamisha Ardalani
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA
| | - Jue Zhang
- Morgridge Institute for Research, Madison, WI, USA
| | | | - Eric H Nguyen
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA
| | | | | | | | | | - Lauren L Bischel
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA
| | - Angela W Xie
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA
| | - Ron Stewart
- Morgridge Institute for Research, Madison, WI, USA
| | - David J Beebe
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA
| | - James A Thomson
- Morgridge Institute for Research, Madison, WI, USA; Department of Cell and Regenerative Biology, University of Wisconsin-Madison, WI, USA; Department of Molecular, Cellular, and Developmental Biology, University of California-Santa Barbara, CA, USA
| | - Michael P Schwartz
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA.
| | - William L Murphy
- Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA; Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, WI, USA.
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12
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Sack KD, Teran M, Nugent MA. Extracellular Matrix Stiffness Controls VEGF Signaling and Processing in Endothelial Cells. J Cell Physiol 2016; 231:2026-39. [PMID: 26773314 DOI: 10.1002/jcp.25312] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/13/2016] [Indexed: 12/12/2022]
Abstract
Vascular endothelial growth factor A (VEGF) drives endothelial cell maintenance and angiogenesis. Endothelial cell behavior is altered by the stiffness of the substrate the cells are attached to suggesting that VEGF activity might be influenced by the mechanical cellular environment. We hypothesized that extracellular matrix (ECM) stiffness modifies VEGF-cell-matrix tethering leading to altered VEGF processing and signaling. We analyzed VEGF binding, internalization, and signaling as a function of substrate stiffness in endothelial cells cultured on fibronectin (Fn) linked polyacrylamide gels. Cell produced extracellular matrices on the softest substrates were least capable of binding VEGF, but the cells exhibited enhanced VEGF internalization and signaling compared to cells on all other substrates. Inhibiting VEGF-matrix binding with sucrose octasulfate decreased cell-internalization of VEGF and, inversely, heparin pre-treatment to enhance Fn-matrix binding of VEGF increased cell-internalization of VEGF regardless of matrix stiffness. β1 integrins, which connect cells to Fn, modulated VEGF uptake in a stiffness dependent fashion. Cells on hard surfaces showed decreased levels of activated β1 and inhibition of β1 integrin resulted in a greater proportional decrease in VEGF internalization than in cells on softer matrices. Extracellular matrix binding is necessary for VEGF internalization. Stiffness modifies the coordinated actions of VEGF-matrix binding and β1 integrin binding/activation, which together are critical for VEGF internalization. This study provides insight into how the microenvironment may influence tissue regeneration and response to injury and disease. J. Cell. Physiol. 231: 2026-2039, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Kelsey D Sack
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Madelane Teran
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts
| | - Matthew A Nugent
- Department of Biological Sciences, University of Massachusetts Lowell, Lowell, Massachusetts
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13
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Huang CC, Pan WY, Tseng MT, Lin KJ, Yang YP, Tsai HW, Hwang SM, Chang Y, Wei HJ, Sung HW. Enhancement of cell adhesion, retention, and survival of HUVEC/cbMSC aggregates that are transplanted in ischemic tissues by concurrent delivery of an antioxidant for therapeutic angiogenesis. Biomaterials 2015; 74:53-63. [PMID: 26447555 DOI: 10.1016/j.biomaterials.2015.09.043] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/25/2015] [Accepted: 09/26/2015] [Indexed: 01/01/2023]
Abstract
A recurring obstacle in cell-base strategies for treating ischemic diseases is the significant loss of viable cells that is caused by the elevated levels of regional reactive oxygen species (ROS), which ultimately limits therapeutic capacity. In this study, aggregates of human umbilical vein endothelial cells (HUVECs) and cord-blood mesenchymal stem cells (cbMSCs), which are capable of inducing therapeutic angiogenesis, are prepared. We hypothesize that the concurrent delivery of an antioxidant N-acetylcysteine (NAC) may significantly increase cell retention following the transplantation of HUVEC/cbMSC aggregates in a mouse model with hindlimb ischemia. Our in vitro results demonstrate that the antioxidant NAC can restore ROS-impaired cell adhesion and recover the reduced angiogenic potential of HUVEC/cbMSC aggregates under oxidative stress. In the animal study, we found that by scavenging the ROS generated in ischemic tissues, NAC is likely to be able to establish a receptive cell environment in the early stage of cell transplantation, promoting the adhesion, retention, and survival of cells of engrafted aggregates. Therapeutic angiogenesis is therefore enhanced and blood flow recovery and limb salvage are ultimately achieved. The combinatory strategy that uses an antioxidant and HUVEC/cbMSC aggregates may provide a new means of boosting the therapeutic efficacy of cell aggregates for the treatment of ischemic diseases.
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Affiliation(s)
- Chieh-Cheng Huang
- Department of Chemical Engineering and Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Wen-Yu Pan
- Department of Chemical Engineering and Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan, ROC; Division of Cardiovascular Surgery, Veterans General Hospital-Taichung, and College of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Michael T Tseng
- Department of Anatomical Sciences and Neurobiology, University of Louisville, Louisville, KY, USA
| | - Kun-Ju Lin
- Healthy Aging Research Center, Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC; Department of Nuclear Medicine and Center of Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital, Linkou, Taiwan, ROC
| | - Yi-Pei Yang
- Department of Chemical Engineering and Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan, ROC
| | - Hung-Wen Tsai
- Division of Cardiovascular Surgery, Veterans General Hospital-Taichung, and College of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Shiaw-Min Hwang
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan, ROC
| | - Yen Chang
- Division of Cardiovascular Surgery, Veterans General Hospital-Taichung, and College of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Hao-Ji Wei
- Division of Cardiovascular Surgery, Veterans General Hospital-Taichung, and College of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC; Division of Cardiovascular Surgery, Chiayi Branch, Veterans General Hospital-Taichung, Chiayi, Taiwan, ROC.
| | - Hsing-Wen Sung
- Department of Chemical Engineering and Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan, ROC.
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14
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De Rossi G, Evans AR, Kay E, Woodfin A, McKay TR, Nourshargh S, Whiteford JR. Shed syndecan-2 inhibits angiogenesis. J Cell Sci 2015; 127:4788-99. [PMID: 25179601 PMCID: PMC4215719 DOI: 10.1242/jcs.153015] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Angiogenesis is essential for the development of a normal vasculature, tissue repair and reproduction, and also has roles in the progression of diseases such as cancer and rheumatoid arthritis. The heparan sulphate proteoglycan syndecan-2 is expressed on mesenchymal cells in the vasculature and, like the other members of its family, can be shed from the cell surface resulting in the release of its extracellular core protein. The purpose of this study was to establish whether shed syndecan-2 affects angiogenesis. We demonstrate that shed syndecan-2 regulates angiogenesis by inhibiting endothelial cell migration in human and rodent models and, as a result, reduces tumour growth. Furthermore, our findings show that these effects are mediated by the protein tyrosine phosphatase receptor CD148 (also known as PTPRJ) and this interaction corresponds with a decrease in active β1 integrin. Collectively, these data demonstrate an unexplored pathway for the regulation of new blood vessel formation and identify syndecan-2 as a therapeutic target in pathologies characterised by angiogenesis.
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Affiliation(s)
- Giulia De Rossi
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Alun R Evans
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Emma Kay
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Abigail Woodfin
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - Tristan R McKay
- Division of Biomedical Sciences, St. George's University of London, Cranmer Terrace, London SW17 0NE, UK
| | - Sussan Nourshargh
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - James R Whiteford
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
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15
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Derricks KE, Trinkaus-Randall V, Nugent MA. Extracellular matrix stiffness modulates VEGF calcium signaling in endothelial cells: individual cell and population analysis. Integr Biol (Camb) 2015; 7:1011-25. [PMID: 26183123 DOI: 10.1039/c5ib00140d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Vascular disease and its associated complications are the number one cause of death in the Western world. Both extracellular matrix stiffening and dysfunctional endothelial cells contribute to vascular disease. We examined endothelial cell calcium signaling in response to VEGF as a function of extracellular matrix stiffness. We developed a new analytical tool to analyze both population based and individual cell responses. Endothelial cells on soft substrates, 4 kPa, were the most responsive to VEGF, whereas cells on the 125 kPa substrates exhibited an attenuated response. Magnitude of activation, not the quantity of cells responding or the number of local maximums each cell experienced distinguished the responses. Individual cell analysis, across all treatments, identified two unique cell clusters. One cluster, containing most of the cells, exhibited minimal or slow calcium release. The remaining cell cluster had a rapid, high magnitude VEGF activation that ultimately defined the population based average calcium response. Interestingly, at low doses of VEGF, the high responding cell cluster contained smaller cells on average, suggesting that cell shape and size may be indicative of VEGF-sensitive endothelial cells. This study provides a new analytical tool to quantitatively analyze individual cell signaling response kinetics, that we have used to help uncover outcomes that are hidden within the average. The ability to selectively identify highly VEGF responsive cells within a population may lead to a better understanding of the specific phenotypic characteristics that define cell responsiveness, which could provide new insight for the development of targeted anti- and pro-angiogenic therapies.
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Affiliation(s)
- Kelsey E Derricks
- Department of Medicine, Boston University School of Medicine, 80 E Concord St., Boston, MA 02118, USA
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16
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Larsen SA, Meldgaard T, Lykkemark S, Mandrup OA, Kristensen P. Selection of cell-type specific antibodies on tissue-sections using phage display. J Cell Mol Med 2015; 19:1939-48. [PMID: 25808085 PMCID: PMC4549044 DOI: 10.1111/jcmm.12568] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 01/29/2015] [Indexed: 12/29/2022] Open
Abstract
With the advent of modern technologies enabling single cell analysis, it has become clear that small sub-populations of cells or even single cells can drive the phenotypic appearance of tissue, both diseased and normal. Nucleic acid based technologies allowing single cell analysis has been faster to mature, while technologies aimed at analysing the proteome at a single cell level is still lacking behind, especially technologies which allow single cell analysis in tissue. Introducing methods, that allows such analysis, will pave the way for discovering new biomarkers with more clinical relevance, as these may be unique for microenvironments only present in tissue and will avoid artifacts introduced by in vitro studies. Here, we introduce a technology enabling biomarker identification on small sub-populations of cells within a tissue section. Phage antibody libraries are applied to the tissue sections, followed by washing to remove non-bound phage particles. To eliminate phage antibodies binding to antigens ubiquitously expressed and retrieve phage antibodies binding specifically to antigens expressed by the sub-population of cells, the area of interest is protected by a ‘shadow stick’. The phage antibodies on the remaining areas on the slide are exposed to UV light, which introduces cross-links in the phage genome, thus rendering them non-replicable. In this work we applied the technology, guided by CD31 expressing endothelial cells, to isolate recombinant antibodies specifically binding biomarkers expressed either by the cell or in the microenvironment surrounding the endothelial cell.
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Affiliation(s)
- Simon Asbjørn Larsen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | | | - Simon Lykkemark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Sino-Danish Centre for Education and Research (SDC), Aarhus, Denmark
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17
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Sartori A, Bianchini F, Migliari S, Burreddu P, Curti C, Vacondio F, Arosio D, Ruffini L, Rassu G, Calorini L, Pupi A, Zanardi F, Battistini L. Synthesis and preclinical evaluation of a novel, selective 111In-labelled aminoproline-RGD-peptide for non-invasive melanoma tumor imaging. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00301f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An 111In-labelled Amp-based RGD-DOTA conjugate was synthesized and evaluated in preclinical models of human melanoma as a novel integrin-targeted SPECT imaging tracer.
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18
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Integrin-mediated adhesion and mechano-sensing in cutaneous wound healing. Cell Tissue Res 2014; 360:571-82. [DOI: 10.1007/s00441-014-2064-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 11/11/2014] [Indexed: 12/30/2022]
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19
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Expression of carbohydrate-antigen sialyl-Lewis a on colon cancer cells promotes xenograft growth and angiogenesis in nude mice. Int J Biochem Cell Biol 2013; 45:2796-800. [DOI: 10.1016/j.biocel.2013.10.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 09/23/2013] [Accepted: 10/01/2013] [Indexed: 12/21/2022]
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20
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Hoesli CA, Garnier A, Juneau PM, Chevallier P, Duchesne C, Laroche G. A fluorophore-tagged RGD peptide to control endothelial cell adhesion to micropatterned surfaces. Biomaterials 2013; 35:879-90. [PMID: 24183170 DOI: 10.1016/j.biomaterials.2013.09.076] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 09/24/2013] [Indexed: 01/08/2023]
Abstract
The long-term patency rates of vascular grafts and stents are limited by the lack of surface endothelialisation of the implanted materials. We have previously reported that GRGDS and WQPPRARI peptide micropatterns increase the endothelialisation of prosthetic materials in vitro. To investigate the mechanisms by which the peptide micropatterns affect endothelial cell adhesion and proliferation, a TAMRA fluorophore-tagged RGD peptide was designed. Live cell imaging revealed that the micropatterned surfaces led to directional cell spreading dependent on the location of the RGD-TAMRA spots. Focal adhesions formed within 3 h on the micropatterned surfaces near RGD-TAMRA spot edges, as expected for cell regions experiencing high tension. Similar levels of focal adhesion kinase phosphorylation were observed after 3 h on the micropatterned surfaces and on surfaces treated with RGD-TAMRA alone, suggesting that partial RGD surface coverage is sufficient to elicit integrin signaling. Lastly, endothelial cell expansion was achieved in serum-free conditions on gelatin-coated, RGD-TAMRA treated or micropatterned surfaces. These results show that these peptide micropatterns mainly impacted cell adhesion kinetics rather than cell proliferation. This insight will be useful for the optimization of micropatterning strategies to improve vascular biomaterials.
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Affiliation(s)
- Corinne A Hoesli
- Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux, Université Laval, Québec G1V 0A6, Canada; Centre de recherche du CHU de Québec, Hôpital Saint-François d'Assise, Québec G1L 3L5, Canada; PROTEO Research Center and Département de génie chimique, Université Laval, Québec G1V 0A6, Canada.
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21
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Narunsky L, Oren R, Bochner F, Neeman M. Imaging aspects of the tumor stroma with therapeutic implications. Pharmacol Ther 2013; 141:192-208. [PMID: 24134903 DOI: 10.1016/j.pharmthera.2013.10.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 12/25/2022]
Abstract
Cancer cells rely on extensive support from the stroma in order to survive, proliferate and invade. The tumor stroma is thus an important potential target for anti-cancer therapy. Typical changes in the stroma include a shift from the quiescence promoting-antiangiogenic extracellular matrix to a provisional matrix that promotes invasion and angiogenesis. These changes in the extracellular matrix are induced by changes in the secretion of extracellular matrix proteins and glucose amino glycans, extravasation of plasma proteins from hyperpermeable vessels and release of matrix modifying enzymes resulting in cleavage and cross-linking of matrix macromolecules. These in turn alter the rigidity of the matrix and the exposure and release of cytokines. Changes in matrix rigidity and vessel permeability affect drug delivery and mediate resistance to cytotoxic therapy. These stroma changes are brought about not only by the cancer cells, but also through the action of many cell types that are recruited by tumors including immune cells, fibroblasts and endothelial cells. Within the tumor, these normal host cells are activated resulting in loss of inhibitory and induction of cancer promoting activities. Key to the development of stroma-targeted therapies, selective biomarkers were developed for specific imaging of key aspects of the tumor stroma.
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Affiliation(s)
- Lian Narunsky
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Roni Oren
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Filip Bochner
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Michal Neeman
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 76100, Israel.
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22
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Role of vascular endothelial progenitor cells in construction of new vascular loop. Microvasc Res 2013; 90:1-11. [PMID: 23851047 DOI: 10.1016/j.mvr.2013.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 06/25/2013] [Accepted: 06/28/2013] [Indexed: 11/22/2022]
Abstract
Since bone marrow-derived endothelial progenitor cells (EPCs) have been detected in adult peripheral blood, the mode of vasculogenesis in the adult tissue has caught attention in field of vascularization research. To confirm the role of EPCs in construction of new vascular loop, we took the biomaterial scaffold implanted into adult rat as an experimental model to observe and examine the actions of the EPCs in neovascularization of the material by immunohistochemistry and transmission electron microscopy. Additionally, by establishing a chemotactic migration model for vascular endothelial cells (ECs) and EPCs, the migrations of ECs and EPCs were explored in simulations. The results of 20,000 simulations showed that the number of the vascular loops assisted by the EPCs was 2-5 times that of the vascular sprouts being naturally joined. Based on the results of experiments and simulations, we conclude that the EPCs are able to assist the angiogenic sprouts in joining under the condition of plenty of the EPCs being mobilized, which aggregate at sites close to sprout tips, forming a cell cord and differentiating to ECs in situ, and become vessel segments between neighboring sprouts. This suggests that there is a difference between the adult and embryo in the manner of vasculogenesis and that a small number of EPCs can play an important role to make the new blood vessels achieve rapid functionalization.
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23
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Han HY, Zhang JP, Ji SQ, Liang QM, Kang HC, Tang RH, Zhu SQ, Xue Z. αν and β1 Integrins mediate Aβ-induced neurotoxicity in hippocampal neurons via the FAK signaling pathway. PLoS One 2013; 8:e64839. [PMID: 23755149 PMCID: PMC3670848 DOI: 10.1371/journal.pone.0064839] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Accepted: 04/19/2013] [Indexed: 11/18/2022] Open
Abstract
αν and β1 integrins mediate Aβ-induced neurotoxicity in primary hippocampal neurons. We treated hippocampal neurons with 2.5 µg/mL 17E6 and 5 µg/mL ab58524, which are specific αν and β1 integrin antagonists, respectively, for 42 h prior to 10 µM Aβ treatment. Next, we employed small interfering RNA (siRNA) to silence focal adhesion kinase (FAK), a downstream target gene of integrins. The siRNAs were designed with a target sequence, an MOI of 10 and the addition of 5 µg/mL polybrene. Under these conditions, the neurons were transfected and the apoptosis of different cell types was detected. Moreover, we used real-time PCR and Western blotting analyses to detect the expression of FAK and ρFAK genes in different cell types and investigated the underlying mechanism and signal pathway by which αν and β1 integrins mediate Aβ-induced neurotoxicity in hippocampal neurons. An MTT assay showed that both 17E6 and ab58524 significantly increased cell viability compared with the Aβ-treated neurons (P<0.01 and P<0.05, respectively). However, this protective effect was markedly attenuated after transfection with silencing FAK (siFAK). Moreover, TUNEL immunostaining and flow cytometry indicated that both 17E6 and ab58524 significantly protected hippocampal neurons against apoptosis induced by Aβ (P<0.05) compared with the Aβ-treated cells. However, this protective effect was reversed with siFAK treatment. Both the gene and protein expression of FAK increased after Aβ treatment. Interestingly, as the gene and protein levels of FAK decreased, the ρFAK protein expression markedly increased. Furthermore, both the gene and protein expression of FAK and ρFAK were significantly diminished. Thus, we concluded that both αν and β1 integrins interfered with Aβ-induced neurotoxicity in hippocampal neurons and that this mechanism partially contributes to the activation of the Integrin-FAK signaling pathway.
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Affiliation(s)
- Hai-Yan Han
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Jin-Ping Zhang
- Department of Neurology, Qianfoshan Hospital, Shan Dong University, Jinan, Shandong Province, China
| | - Su-Qiong Ji
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qi-Ming Liang
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hui-Cong Kang
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Rong-Hua Tang
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Sui-Qiang Zhu
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Zheng Xue
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
- * E-mail:
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24
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Tugues S, Honjo S, König C, Padhan N, Kroon J, Gualandi L, Li X, Barkefors I, Thijssen VL, Griffioen AW, Claesson-Welsh L. Tetraspanin CD63 promotes vascular endothelial growth factor receptor 2-β1 integrin complex formation, thereby regulating activation and downstream signaling in endothelial cells in vitro and in vivo. J Biol Chem 2013; 288:19060-71. [PMID: 23632027 DOI: 10.1074/jbc.m113.468199] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
CD63 is a member of the transmembrane-4 glycoprotein superfamily (tetraspanins) implicated in the regulation of membrane protein trafficking, leukocyte recruitment, and adhesion processes. We have investigated the involvement of CD63 in endothelial cell (EC) signaling downstream of β1 integrin and VEGF. We report that silencing of CD63 in primary ECs arrested capillary sprouting and tube formation in vitro because of impaired adhesion and migration of ECs. Mechanistically, CD63 associated with both β1 integrin and the main VEGF receptor on ECs, VEGFR2. Our data suggest that CD63 serves to bridge between β1 integrin and VEGFR2 because CD63 silencing disrupted VEGFR2-β1 integrin complex formation identified using proximity ligation assays. Signaling downstream of β1 integrin and VEGFR2 was attenuated in CD63-silenced cells, although their cell surface expression levels remained unaffected. CD63 was furthermore required for efficient internalization of VEGFR2 in response to VEGF. Importantly, systemic delivery of VEGF failed to potently induce VEGFR2 phosphorylation and downstream signaling in CD63-deficient mouse lungs. Taken together, our findings demonstrate a previously unrecognized role for CD63 in coordinated integrin and receptor tyrosine kinase signaling in vitro and in vivo.
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Affiliation(s)
- Sònia Tugues
- Department of Immunology, Genetics, and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden.
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25
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Liu Y, Yang Y, Zhang C. A concise review of magnetic resonance molecular imaging of tumor angiogenesis by targeting integrin αvβ3 with magnetic probes. Int J Nanomedicine 2013; 8:1083-93. [PMID: 23515638 PMCID: PMC3600999 DOI: 10.2147/ijn.s39880] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Angiogenesis is an essential step for the growth and spread of malignant tumors. Accurate detection and quantification of tumor angiogenesis is important for early diagnosis of cancers as well as post therapy assessment of antiangiogenic drugs. The cell adhesion molecule integrin αvβ3 is a specific marker of angiogenesis, which is highly expressed on activated and proliferating endothelial cells, but generally not on quiescent endothelial cells. Therefore, in recent years, many different approaches have been developed for imaging αvβ3 expression, for the detection and characterization of tumor angiogenesis. The present review provides an overview of the current status of magnetic resonance molecular imaging of integrin αvβ3, including the new development of high sensitive contrast agents and strategies for improving the specificity of targeting probes and the biological effects of imaging probes on αvβ3 positive cells.
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Affiliation(s)
- Yajie Liu
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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Xie W, Zhao M, Zhou W, Guo L, Huang L, Yu W, Li X. Targeting of Integrin-Linked Kinase with Small Interfering RNA Inhibits VEGF-Induced Angiogenesis in Retinal Endothelial Cells. Ophthalmic Res 2013; 49:139-49. [DOI: 10.1159/000345070] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 09/28/2012] [Indexed: 12/23/2022]
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De Rossi G, Scotland R, Whiteford J. Critical Factors in Measuring Angiogenesis Using the Aortic Ring Model. ACTA ACUST UNITED AC 2013; 4. [PMID: 24349872 DOI: 10.4172/2157-7412.1000147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Angiogenesis is a feature of numerous pathologies including cancer and inflammatory conditions and as such is key therapeutic target for the treatment of disorders where excessive or insufficient formation of new blood vessels occurs. The study of angiogenesis in vivo provides many challenges, however the growth of new blood vessels in vitro from aortic explants has provided a highly useful model for the study of this process. In this manuscript we examine the critical factors which can affect this assay and demonstrate that aortas from both female rats and mice exhibit a reduced angiogenic response to males. These findings have implications not only for the experimental design of angiogenesis experiments but also in the use of therapies targeting angiogenesis in the treatment of pathologies, such as cancer.
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Affiliation(s)
- G De Rossi
- Centre for Microvascular Research, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
| | - Rs Scotland
- Centre for Microvascular Research, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
| | - Jr Whiteford
- Centre for Microvascular Research, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, United Kingdom
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Kieran MW, Kalluri R, Cho YJ. The VEGF pathway in cancer and disease: responses, resistance, and the path forward. Cold Spring Harb Perspect Med 2012; 2:a006593. [PMID: 23209176 DOI: 10.1101/cshperspect.a006593] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Antiangiogenesis was proposed as a novel target for the treatment of cancer 40 years ago. Since the original hypothesis put forward by Judah Folkman in 1971, factors that mediate angiogenesis, their cellular targets, many of the pathways they signal, and inhibitors of the cytokines and receptors have been identified. Vascular endothelial growth factor (VEGF) is the most prominent among the angiogenic cytokines and is believed to play a central role in the process of neovascularization, both in cancer as well as other inflammatory diseases. This article reviews the biology of VEGF and its receptors, the use of anti-VEGF approaches in clinical disease, the toxicity of these therapies, and the resistance mechanisms that have limited the activity of these agents when used as monotherapy.
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Affiliation(s)
- Mark W Kieran
- Department of Pediatric Medical Neuro-Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.
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Marano G, Gronewold C, Frank M, Merling A, Kliem C, Sauer S, Wiessler M, Frei E, Schwartz-Albiez R. An easily accessible sulfated saccharide mimetic inhibits in vitro human tumor cell adhesion and angiogenesis of vascular endothelial cells. Beilstein J Org Chem 2012; 8:787-803. [PMID: 23015827 PMCID: PMC3388867 DOI: 10.3762/bjoc.8.89] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 05/11/2012] [Indexed: 12/11/2022] Open
Abstract
Oligosaccharides aberrantly expressed on tumor cells influence processes such as cell adhesion and modulation of the cell’s microenvironment resulting in an increased malignancy. Schmidt’s imidate strategy offers an effective method to synthesize libraries of various oligosaccharide mimetics. With the aim to perturb interactions of tumor cells with extracellular matrix proteins and host cells, molecules with 3,4-bis(hydroxymethyl)furan as core structure were synthesized and screened in biological assays for their abilities to interfere in cell adhesion and other steps of the metastatic cascade, such as tumor-induced angiogenesis. The most active compound, (4-{[(β-D-galactopyranosyl)oxy]methyl}furan-3-yl)methyl hydrogen sulfate (GSF), inhibited the activation of matrix-metalloproteinase-2 (MMP-2) as well as migration of the human melanoma cells of the lines WM-115 and WM-266-4 in a two-dimensional migration assay. GSF inhibited completely the adhesion of WM-115 cells to the extracellular matrix (ECM) proteins, fibrinogen and fibronectin. In an in vitro angiogenesis assay with human endothelial cells, GSF very effectively inhibited endothelial tubule formation and sprouting of blood vessels, as well as the adhesion of endothelial cells to ECM proteins. GSF was not cytotoxic at biologically active concentrations; neither were 3,4-bis{[(β-D-galactopyranosyl)oxy]methyl}furan (BGF) nor methyl β-D-galactopyranoside nor 3,4-bis(hydroxymethyl)furan, which were used as controls, eliciting comparable biological activity. In silico modeling experiments, in which binding of GSF to the extracellular domain of the integrin αvβ3 was determined, revealed specific docking of GSF to the same binding site as the natural peptidic ligands of this integrin. The sulfate in the molecule coordinated with one manganese ion in the binding site. These studies show that this chemically easily accessible molecule GSF, synthesized in three steps from 3,4-bis(hydroxymethyl)furan and benzoylated galactose imidate, is nontoxic and antagonizes cell physiological processes in vitro that are important for the dissemination and growth of tumor cells in vivo.
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Affiliation(s)
- Grazia Marano
- German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany ; Calvatis GmbH, Dr.-Albert-Reimann-Str. 16a, 68526 Ladenburg, Germany
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Actions of the Kunitz-type serine protease inhibitor Amblyomin-X on VEGF-A-induced angiogenesis. Toxicon 2012; 60:333-40. [PMID: 22575283 DOI: 10.1016/j.toxicon.2012.04.349] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 04/17/2012] [Accepted: 04/24/2012] [Indexed: 11/22/2022]
Abstract
Amblyomin-X is a Kunitz-type serine protease inhibitor (Kunitz-type SPI) designed from the cDNA library of the Amblyomma cajennense tick, which displays in vivo anti-tumor activities. Here, the mechanisms of actions of Amblyomin-X in vascular endothelial growth factor A (VEGF-A)-induced angiogenesis were characterized. Topical application of Amblyomin-X (10 or 100 ng/10 μl; each 48 h) inhibited VEGF-A-induced (10 ng/10 μl; each 48 h) angiogenesis in the dorsal subcutaneous tissue in male Swiss mice. Moreover, similar effect was observed in the VEGF-A-induced angiogenesis in the chicken chorioallantoic membrane (CAM). Additional in vitro assays in t-End cells showed that Amblyomin-X treatment delayed the cell cycle, by maintaining them in G0/G1 phase, and inhibited cell proliferation and adhesion, tube formation and membrane expression of the adhesion molecule platelet-endothelial cell adhesion molecule-1 (PECAM-1), regardless of mRNA synthesis. Together, results herein reveal the role of Kunitz-type SPI on in vivo VEGF-A-induced angiogenesis, by exerting modulatory actions on endothelial cell proliferation and adhesion, especially on membrane expression of PECAM-1. These data provide further mechanisms of actions of Kunitz-type SPI, corroborating their relevance as scientific tools in the design of therapeutic molecules.
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Hamsa TP, Kuttan G. Antiangiogenic activity of berberine is mediated through the downregulation of hypoxia-inducible factor-1, VEGF, and proinflammatory mediators. Drug Chem Toxicol 2012; 35:57-70. [PMID: 22145808 DOI: 10.3109/01480545.2011.589437] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Berberine, a naturally occurring isoquinoline alkaloid, is present in a number of important medicinal plants. Berberine has a wide range of biochemical and pharmacological effects, including anticancer effects. In this study, we elucidated the mechanism of antiangiogenic activity of berberine using in vivo and in vitro models. In vivo antiangiogenic activity was studied using B16F-10 melanoma cells and induced capillary formation in C57BL/6 mice. Berberine, at 10 mg/kg body weight, showed significant inhibition in tumor-directed capillary formation and in various proangiogenic factors, such as vascular endothelial growth factor (VEGF), and proinflammatory mediators, such as interleukin (IL)-1β, IL-6, tumor necrosis factor alpha (TNF-α), and granulocyte macrophage colony-stimulating factor (GM-CSF), which are involved in tumor angiogenesis. At the same time, it could also increase antitumor factors, such as IL-2 and tissue-inhibitor metalloproteinase (TIMP) levels in the serum. Berberine could also inhibit endothelial motility, migration, tube formation, and vessel sprouting from rat aortic ring in vitro. Further, berberine inhibited various transcription factors involved in tumor development and angiogenesis, such as NF-ĸB, c-Fos, CREB, and ATF-2. mRNA expression levels of proangiogenic factors, such as cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), and hypoxia-inducible factor (HIF), were also downregulated in tumor cells after treatment with berberine. Drastically elevated expressions of HIF and VEGF mRNA by tumor cells under hypoxic conditions were also decreased after treatment with berberine. This result clearly demonstrates that the antiangiogenic activity of berberine is mainly mediated through the inhibition of various proinflammatory and pro-angiogenic factors and the major ones are HIF, VEGF, COX-2, NO, NF-ĸB, and proinflammatory cytokines.
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Affiliation(s)
- T P Hamsa
- Amala Cancer Research Center, Amala Nagar, Thrissur, India
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Hirota S, Liu Q, Lee HS, Hossain MG, Lacy-Hulbert A, McCarty JH. The astrocyte-expressed integrin αvβ8 governs blood vessel sprouting in the developing retina. Development 2012; 138:5157-66. [PMID: 22069187 PMCID: PMC3253036 DOI: 10.1242/dev.069153] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The mouse retina is vascularized after birth when angiogenic blood vessels grow and sprout along a pre-formed latticework of astrocytes. How astrocyte-derived cues control patterns of blood vessel growth and sprouting, however, remains enigmatic. Here, we have used molecular genetic strategies in mice to demonstrate that αvβ8 integrin expressed in astrocytes is essential for neovascularization of the developing retina. Selective ablation of αv or β8 integrin gene expression in astrocytes leads to impaired blood vessel sprouting and intraretinal hemorrhage, particularly during formation of the secondary vascular plexus. These pathologies correlate, in part, with diminished αvβ8 integrin-mediated activation of extracellular matrix-bound latent transforming growth factor βs (TGFβs) and defective TGFβ signaling in vascular endothelial cells, but not astrocytes. Collectively, our data demonstrate that αvβ8 integrin is a component of a paracrine signaling axis that links astrocytes to blood vessels and is essential for proper regulation of retinal angiogenesis.
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Affiliation(s)
- Shinya Hirota
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Integrin-mediated cell-matrix interaction in physiological and pathological blood vessel formation. JOURNAL OF ONCOLOGY 2011; 2012:125278. [PMID: 21941547 PMCID: PMC3175391 DOI: 10.1155/2012/125278] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 07/15/2011] [Indexed: 02/07/2023]
Abstract
Physiological as well as pathological blood vessel formation are fundamentally dependent on cell-matrix interaction. Integrins, a family of major cell adhesion receptors, play a pivotal role in development, maintenance, and remodeling of the vasculature. Cell migration, invasion, and remodeling of the extracellular matrix (ECM) are integrin-regulated processes, and the expression of certain integrins also correlates with tumor progression. Recent advances in the understanding of how integrins are involved in the regulation of blood vessel formation and remodeling during tumor progression are highlighted. The increasing knowledge of integrin function at the molecular level, together with the growing repertoire of integrin inhibitors which allow their selective pharmacological manipulation, makes integrins suited as potential diagnostic markers and therapeutic targets.
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Abstract
The process of carcinogenesis involves a number of changes in cellular phenotype, which are largely based on acquired genetic changes in cells that are not terminally differentiated. The ability of cancer cells to grow and their failure to respond to the usual controls on such proliferation are obvious features, but they also evade cell death and most have no limits on their ability to replicate beyond the limits imposed by telomere length in normal cells. In addition, they are able to stimulate the formation of blood vessels to ensure a steady supply of oxygen and nutrients, and to invade normal tissues, sometimes subverting the normal processes within those tissues. Finally, it has become increasingly apparent that cancer cells undergo a process of selection which renders the immune system ineffective. Some of these characteristics are retained by cells in culture, and an understanding of the biological properties of cancer cells will assist in the design of experiments and the interpretation of their results.
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Affiliation(s)
- Ian A Cree
- Translational Oncology Research Centre, Queen Alexandra Hospital, Portsmouth, UK.
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Holtz ML, Misra RP. Serum response factor is required for cell contact maintenance but dispensable for proliferation in visceral yolk sac endothelium. BMC DEVELOPMENTAL BIOLOGY 2011; 11:18. [PMID: 21401944 PMCID: PMC3065428 DOI: 10.1186/1471-213x-11-18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Accepted: 03/14/2011] [Indexed: 01/14/2023]
Abstract
Background Endothelial-specific knockout of the transcription factor serum response factor (SRF) results in embryonic lethality by mid-gestation. The associated phenotype exhibits vascular failure in embryos as well as visceral yolk sac (VYS) tissues. Previous data suggest that this vascular failure is caused by alterations in cell-cell and cell-matrix contacts. In the current study, we sought to more carefully address the role of SRF in endothelial function and cell contact interactions in VYS tissues. Results Tie2-Cre recombinase-mediated knockout of SRF expression resulted in loss of detectable SRF from VYS mesoderm by E12.5. This loss was accompanied by decreased expression of smooth muscle alpha-actin as well as vascular endothelial cadherin and claudin 5, endothelial-specific components of adherens and tight junctions, respectively. Focal adhesion (FA) integrins alpha5 and beta1 were largely unchanged in contrast to loss of the FA-associated molecule vinculin. The integrin binding partner fibronectin-1 was also profoundly decreased in the extracellular matrix, indicating another aspect of impaired adhesive function and integrin signaling. Additionally, cells in SRF-null VYS mesoderm failed to reduce proliferation, suggesting not only that integrin-mediated contact inhibition is impaired but also that SRF protein is not required for proliferation in these cells. Conclusions Our data support a model in which SRF is critical in maintaining functional cell-cell and cell-matrix adhesion in endothelial cells. Furthermore, we provide evidence that supports a model in which loss of SRF protein results in a sustained proliferation defect due in part to failed integrin signaling.
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Affiliation(s)
- Mary L Holtz
- Department of Biochemistry, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin 53226, USA.
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Sugimura K, Fukumoto Y, Nawata J, Wang H, Onoue N, Tada T, Shirato K, Shimokawa H. Hypertension promotes phosphorylation of focal adhesion kinase and proline-rich tyrosine kinase 2 in rats: implication for the pathogenesis of hypertensive vascular disease. TOHOKU J EXP MED 2011; 222:201-10. [PMID: 21068519 DOI: 10.1620/tjem.222.201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Atherosclerosis is initiated by adhesion and infiltration of inflammatory leukocytes into the intima, where non-receptor protein tyrosine kinases, such as focal adhesion kinase (FAK) and proline-rich tyrosine kinase 2 (PYK2), play important roles as intracellular messengers of mechanical and biochemical signals. In the present study, we examined whether FAK and PYK2 are up-regulated by elevated blood pressure or circulating humoral factors in hypertension. We used a rat model of abdominal aortic banding that allows separate evaluation of elevated blood pressure (upper body) and circulating humoral factors (lower body). We obtained the proximal and distal aortas of the banding site, 6 hours, 3 days, and 1 and 4 weeks after the banding procedure, for evaluation of phosphorylation of FAK and PYK2 by Western blotting. Arterial pressure was significantly elevated only in the upper body throughout the experimental period. The expression of FAK and the FAK phosphorylation were significantly increased at 1 and 4 weeks only in the proximal aorta. This was also the case for the expression of total PYK2 and the PYK2 phosphorylation. In contrast, there was no significant change in FAK or PYK2 phosphorylation in the distal aorta, whereas plasma levels of angiotensin II were systemically elevated. In sham-operated rats, no change in FAK or PYK2 phoshorylation was noted in the proximal and distal aortas. These results indicate that phosphorylation of FAK and PYK2 is upregulated by elevated blood pressure but not by humoral factors in the rat aorta, demonstrating novel aspects of atherogenesis in hypertension.
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Affiliation(s)
- Koichiro Sugimura
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Schneider JG, Amend SH, Weilbaecher KN. Integrins and bone metastasis: integrating tumor cell and stromal cell interactions. Bone 2011; 48:54-65. [PMID: 20850578 PMCID: PMC3010439 DOI: 10.1016/j.bone.2010.09.016] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 09/04/2010] [Indexed: 01/24/2023]
Abstract
Integrins on both tumor cells and the supporting host stromal cells in bone (osteoclasts, new blood vessels, inflammatory cells, platelets and bone marrow stromal cells) play key roles in enhancing bone metastasis. Tumor cells localize to specific tissues through integrin-mediated contacts with extracellular matrix and stromal cells. Integrin expression and signaling are perturbed in cancer cells, allowing them to "escape" from cell-cell and cell-matrix tethers, invade, migrate and colonize within new tissues and matrices. Integrin signaling through αvβ3 and VLA-4 on tumor cells can promote tumor metastasis to and proliferation in the bone microenvironment. Osteoclast (OC) mediated bone resorption is a critical component of bone metastasis and can promote tumor growth in bone and αvβ3 integrins are critical to OC function and development. Tumors in the bone microenvironment can recruit new blood vessel formation, platelets, pro-tumor immune cells and bone marrow stromal cells that promote tumor growth and invasion in bone. Integrins and their ligands play critical roles in platelet aggregation (αvβ3 and αIIbβ3), hematopoietic cell mobilization (VLA-4 and osteopontin), neoangiogenesis (αvβ3, αvβ5, α6β4, and β1 integrin) and stromal function (osteopontin and VLA-4). Integrins are involved in the pathogenesis of bone metastasis at many levels and further study to define integrin dysregulation by cancer will yield new therapeutic targets for the prevention and treatment of bone metastasis.
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Affiliation(s)
- Jochen G. Schneider
- Institute for Clinical Biochemistry and Pathobiochemistry, University of Wuerzburg, Germany, and Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Luxembourg
| | - Sarah H. Amend
- Department of Medicine and Division of Oncology, Washington University, School of Medicine, St. Louis, MO, USA
| | - Katherine N. Weilbaecher
- Department of Medicine and Division of Oncology, Washington University, School of Medicine, St. Louis, MO, USA
- Corresponding author: Katherine Weilbaecher, Department of Medicine and Cell Biology and Physiology, Division of Oncology, Washington University, School of Medicine, 660 S. Euclid Ave, PO Box 8069, St. Louis, MO, 63110, USA
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Tavora B, Batista S, Reynolds LE, Jadeja S, Robinson S, Kostourou V, Hart I, Fruttiger M, Parsons M, Hodivala-Dilke KM. Endothelial FAK is required for tumour angiogenesis. EMBO Mol Med 2010; 2:516-28. [PMID: 21154724 PMCID: PMC3377344 DOI: 10.1002/emmm.201000106] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 11/12/2010] [Accepted: 11/12/2010] [Indexed: 11/08/2022] Open
Abstract
Focal adhesion kinase (FAK) is a cytoplasmic tyrosine kinase that plays a fundamental role in integrin and growth factor mediated signalling and is an important player in cell migration and proliferation, processes vital for angiogenesis. However, the role of FAK in adult pathological angiogenesis is unknown. We have generated endothelial-specific tamoxifen-inducible FAK knockout mice by crossing FAK-floxed (FAKfl/fl) mice with the platelet derived growth factor b (Pdgfb)-iCreER mice. Tamoxifen-treatment of Pdgfb-iCreER;FAKfl/fl mice results in FAK deletion in adult endothelial cells (ECs) without any adverse effects. Importantly however, endothelial FAK-deletion in adult mice inhibited tumour growth and reduced tumour angiogenesis. Furthermore, in in vivo angiogenic assays FAK deletion impairs vascular endothelial growth factor (VEGF)-induced neovascularization. In addition, in vitro deletion of FAK in ECs resulted in reduced VEGF-stimulated Akt phosphorylation and correlating reduced cellular proliferation as well as increased cell death. Our data suggest that FAK is required for adult pathological angiogenesis and validates FAK as a possible target for anti-angiogenic therapies.
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Affiliation(s)
- Bernardo Tavora
- Adhesion and Angiogenesis Laboratory, Centre of Tumour Biology, Institute of Cancer and Cancer Research UK Clinical Centre, Barts & The London, Queen Mary's School of Medicine & DentistryJohn Vane Science Centre, Charterhouse Square, London, UK
| | - Silvia Batista
- Adhesion and Angiogenesis Laboratory, Centre of Tumour Biology, Institute of Cancer and Cancer Research UK Clinical Centre, Barts & The London, Queen Mary's School of Medicine & DentistryJohn Vane Science Centre, Charterhouse Square, London, UK
| | - Louise E Reynolds
- Adhesion and Angiogenesis Laboratory, Centre of Tumour Biology, Institute of Cancer and Cancer Research UK Clinical Centre, Barts & The London, Queen Mary's School of Medicine & DentistryJohn Vane Science Centre, Charterhouse Square, London, UK
| | - Shalini Jadeja
- University College London, Institute of OphthalmologyLondon, UK
| | - Stephen Robinson
- Adhesion and Angiogenesis Laboratory, Centre of Tumour Biology, Institute of Cancer and Cancer Research UK Clinical Centre, Barts & The London, Queen Mary's School of Medicine & DentistryJohn Vane Science Centre, Charterhouse Square, London, UK
| | | | - Ian Hart
- Adhesion and Angiogenesis Laboratory, Centre of Tumour Biology, Institute of Cancer and Cancer Research UK Clinical Centre, Barts & The London, Queen Mary's School of Medicine & DentistryJohn Vane Science Centre, Charterhouse Square, London, UK
| | | | - Maddy Parsons
- The Randall Division of Cell and Molecular Biophysics, New Hunt's House, King's College LondonLondon, UK
| | - Kairbaan M Hodivala-Dilke
- Adhesion and Angiogenesis Laboratory, Centre of Tumour Biology, Institute of Cancer and Cancer Research UK Clinical Centre, Barts & The London, Queen Mary's School of Medicine & DentistryJohn Vane Science Centre, Charterhouse Square, London, UK
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Hamsa TP, Kuttan G. Anti-angiogenic activity of Ipomoea obscura extract and Ipobscurine-A. Immunopharmacol Immunotoxicol 2010; 33:488-97. [PMID: 21058930 DOI: 10.3109/08923973.2010.531277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Ipomoea obscura (L.) Ker-Gawl, is a medicinal herb with indole alkaloids as an active constituent. In this study, we investigated the anti-angiogenic activity of I. obscura extract and one of its major compounds Ipobscurine-A (IPO-A). METHODS In vivo angiogenesis was induced by injecting B16F10 melanoma cells intradermally on the shaven ventral skin of C57BL/6 mice. In vitro experiments were conducted using human umbilical vein endothelial cells. RESULTS I. obscura and IPO-A significantly inhibited endothelial cell proliferation, migration, invasion, and tube formation in vitro. Vascular endothelial growth factor (VEGF)-induced sprouting of endothelial cells from rat aorta ex vivo was also inhibited. A marked decrease in the production of matrix metalloproteinases (MMPs) and the expressions of VEGF, cyclooxygenase-2, and nitric oxide synthase by B16F10 cells were observed after the treatment with the extract or IPO-A. Intraperitoneal administration of the extract significantly inhibited B16F10 melanoma cell line-induced neo-vessel formation in C57BL/6 mice in vivo. Analysis of serum cytokine profile clearly showed that extract significantly reduced the elevated levels of pro-inflammatory cytokines such as interleukins (IL)-1β, IL-6, tumor necrosis factor-α, and granulocyte-monocyte colony stimulating factor and the most potent angiogenic factor VEGF in animals. Serum NO level was also found to be significantly lowered by the administration of the extract. Anti-angiogenic factors such as TIMP-1 and IL-2 level were elevated in the extract-treated animals. CONCLUSION These data clearly demonstrate that I. obscura extract and IPO-A inhibit the tumor-specific angiogenesis by downregulating pro-angiogenic factors such as MMP, VEGF, and pro-inflammatory mediators and upregulating anti-angiogenic factors such as IL-2 and TIMP-1.
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Affiliation(s)
- T P Hamsa
- Department of Immunology, Amala Cancer Research Centre, Thrissur, Kerala, India
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D'Alessandro A, Zolla L, Scaloni A. The bovine milk proteome: cherishing, nourishing and fostering molecular complexity. An interactomics and functional overview. MOLECULAR BIOSYSTEMS 2010; 7:579-97. [PMID: 20877905 DOI: 10.1039/c0mb00027b] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Bovine milk represents an essential source of nutrients for lactating calves and a key raw material for human food preparations. A wealth of data are present in the literature dealing with massive proteomic analyses of milk fractions and independent targeted studies on specific groups of proteins, such as caseins, globulins, hormones and cytokines. In this study, we merged data from previous investigations to compile an exhaustive list of 573 non-redundant annotated protein entries. This inventory was exploited for integrated in silico studies, including functional GO term enrichment (FatiGO/Babelomics), multiple pathway and network analyses. As expected, most of the milk proteins were grouped under pathways/networks/ontologies referring to nutrient transport, lipid metabolism and objectification of the immune system response. Notably enough, another functional family was observed as the most statistically significant one, which included proteins involved in the induction of cellular proliferation processes as well as in anatomical and haematological system development. Although the latter function for bovine milk proteins has long been postulated, studies reported so far mainly focused on a handful of molecules and missed the whole overview resulting from an integrated holistic analysis. A preliminary map of the bovine milk proteins interactome was also built up, which will be refined in future as result of the widespread use of quantitative methods in protein interaction studies and consequent reduction of false-positives within associated databases.
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Affiliation(s)
- Angelo D'Alessandro
- Department of Environmental Sciences, University of Tuscia, Largo dell'Università, SNC, 01100 Viterbo, Italy
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Arroyo AG, Iruela-Arispe ML. Extracellular matrix, inflammation, and the angiogenic response. Cardiovasc Res 2010; 86:226-35. [PMID: 20154066 DOI: 10.1093/cvr/cvq049] [Citation(s) in RCA: 215] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Inflammation and angiogenesis are frequently coupled in pathological situations such as atherosclerosis, diabetes, and arthritis. The inflammatory response increases capillary permeability and induces endothelial activation, which, when persistent, results in capillary sprouting. This inflammation-induced angiogenesis and the subsequent remodelling steps are in large part mediated by extracellular matrix (ECM) proteins and proteases. The focal increase in capillary permeability is an early consequence of inflammation, and results in the deposition of a provisional fibrin matrix. Subsequently, ECM turnover by proteases permits an invasive program by specialized endothelial cells whose phenotype can be regulated by inflammatory stimuli. ECM activity also provides specific mechanical forces, exposes cryptic adhesion sites, and releases biologically active fragments (matrikines) and matrix-sequestered growth factors, all of which are critical for vascular morphogenesis. Further matrix remodelling and vascular regression contribute to the resolution of the inflammatory response and facilitate tissue repair.
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Affiliation(s)
- Alicia G Arroyo
- Department of Vascular Biology and Inflammation, Centro Nacional de Investigaciones Cardiovasculares, Melchor Fernández Almagro 3, Madrid 28029, Spain.
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Francavilla C, Maddaluno L, Cavallaro U. The functional role of cell adhesion molecules in tumor angiogenesis. Semin Cancer Biol 2009; 19:298-309. [DOI: 10.1016/j.semcancer.2009.05.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 05/20/2009] [Indexed: 12/18/2022]
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Gorlov IP, Gallick GE, Gorlova OY, Amos C, Logothetis CJ. GWAS meets microarray: are the results of genome-wide association studies and gene-expression profiling consistent? Prostate cancer as an example. PLoS One 2009; 4:e6511. [PMID: 19652704 PMCID: PMC2714961 DOI: 10.1371/journal.pone.0006511] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2009] [Accepted: 06/29/2009] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Genome-wide association studies (GWASs) and global profiling of gene expression (microarrays) are two major technological breakthroughs that allow hypothesis-free identification of candidate genes associated with tumorigenesis. It is not obvious whether there is a consistency between the candidate genes identified by GWAS (GWAS genes) and those identified by profiling gene expression (microarray genes). METHODOLOGY/PRINCIPAL FINDINGS We used the Cancer Genetic Markers Susceptibility database to retrieve single nucleotide polymorphisms from candidate genes for prostate cancer. In addition, we conducted a large meta-analysis of gene expression data in normal prostate and prostate tumor tissue. We identified 13,905 genes that were interrogated by both GWASs and microarrays. On the basis of P values from GWASs, we selected 1,649 most significantly associated genes for functional annotation by the Database for Annotation, Visualization and Integrated Discovery. We also conducted functional annotation analysis using same number of the top genes identified in the meta-analysis of the gene expression data. We found that genes involved in cell adhesion were overrepresented among both the GWAS and microarray genes. CONCLUSIONS/SIGNIFICANCE We conclude that the results of these analyses suggest that combining GWAS and microarray data would be a more effective approach than analyzing individual datasets and can help to refine the identification of candidate genes and functions associated with tumor development.
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Affiliation(s)
- Ivan P Gorlov
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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