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Bhattacharyya A, Barbee KA. Vascular endothelial cell morphology and alignment regulate VEGF-induced endothelial nitric oxide synthase activation. Cytoskeleton (Hoboken) 2024. [PMID: 38775643 DOI: 10.1002/cm.21872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 06/13/2024]
Abstract
Nitric oxide (NO) production by endothelial nitric oxide synthase (eNOS) inhibits platelet and leukocyte adhesion while promoting vasorelaxation in smooth muscle cells. Dysfunctional regulation of eNOS is a hallmark of various vascular pathologies, notably atherosclerosis, often associated with areas of low shear stress on endothelial cells (ECs). While the link between EC morphology and local hemodynamics is acknowledged, the specific impact of EC morphology on eNOS regulation remains unclear. Morphological differences between elongated, aligned ECs and polygonal, randomly oriented ECs correspond to variations in focal adhesion and cytoskeletal organization, suggesting differing levels of cytoskeletal prestress. However, the functional outcomes of cytoskeletal prestress, particularly in the absence of shear stress, are not extensively studied in ECs. Some evidence suggests that elongated ECs exhibit decreased immunogenicity and enhanced NO production. This study aims to elucidate the signaling pathways governing VEGF-stimulated eNOS regulation in the aligned EC phenotype characterized by elongated and aligned cells within a monolayer. Using anisotropic topographic cues, bovine aortic endothelial cells (BAECs) were elongated and aligned, followed by VEGF treatment in the presence or absence of cytoskeletal tension inhibitors. Phosphorylation of eNOS ser1179, AKT ser437 and FAK Tyr397 in response to VEGF challenge were significantly heightened in aligned ECs compared to unaligned ECs. Moreover this response proved to be robustly tied to cytoskeletal tension as evinced by the abrogation of responses in the presence of the myosin II ATPase inhibitor, blebbistatin. Notably, this work demonstrates for the first time the reliance on FAK phosphorylation in VEGF-mediated eNOS activation and the comparatively greater contribution of the cytoskeletal machinery in propagating VEGF-eNOS signaling in aligned and elongated ECs. This research underscores the importance of utilizing appropriate vascular models in drug development and sheds light on potential mechanisms underlying vascular function and pathology that can help inform vascular graft design.
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Affiliation(s)
- Aparna Bhattacharyya
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
| | - Kenneth A Barbee
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
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2
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He Y, Gang B, Zhang M, Bai Y, Wan Z, Pan J, Liu J, Liu G, Gu W. ACE2 improves endothelial cell function and reduces acute lung injury by downregulating FAK expression. Int Immunopharmacol 2024; 128:111535. [PMID: 38246001 DOI: 10.1016/j.intimp.2024.111535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/01/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024]
Abstract
Endothelial cell (EC) barrier dysfunction and increased adhesion of immune inflammatory cells to ECs crucially contribute to acute lung injury (ALI). Angiotensin-converting enzyme 2 (ACE2) is an essential regulator of the renin-angiotensin system (RAS) and exerts characteristic vasodilatory and anti-inflammatory effects. SARS-COV-2 infects the lungs by binding to ACE2, which can lead to dysregulation of ACE2 expression, further leading to ALI with predominantly vascular inflammation and eventually to more severe acute respiratory distress syndrome (ARDS). Therefore, restoration of ACE2 expression represents a valuable therapeutic approach for SARS-COV-2-related ALI/ARDS. In this study, we used polyinosinic-polycytidylic acid (Poly(I:C)), a double-stranded RNA analog, to construct a mouse ALI model that mimics virus infection. After Poly(I:C) exposure, ACE2 was downregulated in mouse lung tissues and in cultured ECs. Treatment with DIZE, an ACE2-activating compound, upregulated ACE2 expression and relieved ALI in mice. DIZE also improved barrier function and reduced the number of THP-1 monocytes adhering to cultured ECs. Focal adhesion kinase (FAK) and phosphorylated FAK (p-FAK) levels were increased in lung tissues of ALI mice as well as in Poly(I:C)-treated ECs in vitro. Both DIZE and the FAK inhibitor PF562271 decreased FAK/p-FAK expression in both ALI models, attenuating ALI severity in vivo and increasing barrier function and reducing monocyte adhesion in cultured ECs. Furthermore, in vivo experiments using ANG 1-7 and the MAS inhibitor A779 corroborated that DIZE-mediated ACE2 activation stimulated the activity of the ANG 1-7/MAS axis, which inhibited FAK/p-FAK expression in the mouse lung. These findings provide further evidence that activation of ACE2 in ECs may be a valuable therapeutic strategy for ALI.
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Affiliation(s)
- Yixuan He
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China
| | - Baocai Gang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China
| | - Mengjie Zhang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China
| | - Yuting Bai
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China
| | - Ziyu Wan
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China
| | - Jiesong Pan
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China
| | - Jie Liu
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, Sichuan Province, PR China
| | - Guoquan Liu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China.
| | - Wei Gu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui Province 233030, PR China.
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3
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Rezvanian P, Álvarez-López A, Tabraue-Rubio R, Daza R, Colchero L, Elices M, Guinea GV, González-Nieto D, Pérez-Rigueiro J. Modulation of Cell Response through the Covalent Binding of Fibronectin to Titanium Substrates. J Funct Biomater 2023; 14:342. [PMID: 37504837 PMCID: PMC10381834 DOI: 10.3390/jfb14070342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/16/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Titanium (Ti-6Al-4V) substrates were functionalized through the covalent binding of fibronectin, and the effect of the existence of this extracellular matrix protein on the surface of the material was assessed by employing mesenchymal stem cell (MSC) cultures. The functionalization process comprised the usage of the activation vapor silanization (AVS) technique to deposit a thin film with a high surface density of amine groups on the material, followed by the covalent binding of fibronectin to the amine groups using the N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide (EDC/NHS) crosslinking chemistry. The biological effect of the fibronectin on murine MSCs was assessed in vitro. It was found that functionalized samples not only showed enhanced initial cell adhesion compared with bare titanium, but also a three-fold increase in the cell area, reaching values comparable to those found on the polystyrene controls. These results provide compelling evidence of the potential to modulate the response of the organism to an implant through the covalent binding of extracellular matrix proteins on the prosthesis.
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Affiliation(s)
- Parsa Rezvanian
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan 8159358686, Iran
| | - Aroa Álvarez-López
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Raquel Tabraue-Rubio
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Bioactive Surfaces S.L. C/Puerto de Navacerrada 18, Galapagar, 28260 Madrid, Spain
| | - Rafael Daza
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Luis Colchero
- Bioactive Surfaces S.L. C/Puerto de Navacerrada 18, Galapagar, 28260 Madrid, Spain
| | - Manuel Elices
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Gustavo V Guinea
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle Prof. Martín Lagos s/n, 28040 Madrid, Spain
| | - Daniel González-Nieto
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Departamento de Tecnología Fotónica y Bioingeniería, ETSI Telecomunicaciones, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - José Pérez-Rigueiro
- Center for Biomedical Technology, Universidad Politécnica de Madrid, Pozuelo de Alarcón, 28223 Madrid, Spain
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Bioactive Surfaces S.L. C/Puerto de Navacerrada 18, Galapagar, 28260 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle Prof. Martín Lagos s/n, 28040 Madrid, Spain
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Huang TT, Chen CM, Lin SS, Lan YW, Cheng HC, Choo KB, Wang CC, Huang TH, Chong KY. E7050 Suppresses the Growth of Multidrug-Resistant Human Uterine Sarcoma by Inhibiting Angiogenesis via Targeting of VEGFR2-Mediated Signaling Pathways. Int J Mol Sci 2023; 24:ijms24119606. [PMID: 37298555 DOI: 10.3390/ijms24119606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
E7050 is an inhibitor of VEGFR2 with anti-tumor activity; however, its therapeutic mechanism remains incompletely understood. In the present study, we aim to evaluate the anti-angiogenic activity of E7050 in vitro and in vivo and define the underlying molecular mechanism. It was observed that treatment with E7050 markedly inhibited proliferation, migration, and capillary-like tube formation in cultured human umbilical vein endothelial cells (HUVECs). E7050 exposure in the chick embryo chorioallantoic membrane (CAM) also reduced the amount of neovessel formation in chick embryos. To understand the molecular basis, E7050 was found to suppress the phosphorylation of VEGFR2 and its downstream signaling pathway components, including PLCγ1, FAK, Src, Akt, JNK, and p38 MAPK in VEGF-stimulated HUVECs. Moreover, E7050 suppressed the phosphorylation of VEGFR2, FAK, Src, Akt, JNK, and p38 MAPK in HUVECs exposed to MES-SA/Dx5 cells-derived conditioned medium (CM). The multidrug-resistant human uterine sarcoma xenograft study revealed that E7050 significantly attenuated the growth of MES-SA/Dx5 tumor xenografts, which was associated with inhibition of tumor angiogenesis. E7050 treatment also decreased the expression of CD31 and p-VEGFR2 in MES-SA/Dx5 tumor tissue sections in comparison with the vehicle control. Collectively, E7050 may serve as a potential agent for the treatment of cancer and angiogenesis-related disorders.
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Affiliation(s)
- Tsung-Teng Huang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Graduate Institute of Biomedical Sciences, Division of Biotechnology, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chuan-Mu Chen
- Department of Life Sciences, Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
- The iEGG and Animal Biotechnology Center and the Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Song-Shu Lin
- Department of Nursing, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan
- Hyperbaric Oxygen Medical Research Laboratory, Bone and Joint Research Center, Linkou Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Ying-Wei Lan
- Division of Pulmonary Biology, The Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH 45229, USA
| | - Hsu-Chen Cheng
- Department of Life Sciences, Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
- The iEGG and Animal Biotechnology Center and the Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Kong-Bung Choo
- Centre for Stem Cell Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang 43000, Selangor, Malaysia
| | - Ching-Chiung Wang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Tse-Hung Huang
- Department of Traditional Chinese Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Kowit-Yu Chong
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Graduate Institute of Biomedical Sciences, Division of Biotechnology, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Hyperbaric Oxygen Medical Research Laboratory, Bone and Joint Research Center, Linkou Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Centre for Stem Cell Research, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Kajang 43000, Selangor, Malaysia
- Department of Traditional Chinese Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
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5
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Integrin-specific hydrogels for growth factor-free vasculogenesis. NPJ Regen Med 2022; 7:57. [PMID: 36167724 PMCID: PMC9515164 DOI: 10.1038/s41536-022-00253-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022] Open
Abstract
Integrin-binding biomaterials have been extensively evaluated for their capacity to enable de novo formation of capillary-like structures/vessels, ultimately supporting neovascularization in vivo. Yet, the role of integrins as vascular initiators in engineered materials is still not well understood. Here, we show that αvβ3 integrin-specific 3D matrices were able to retain PECAM1+ cells from the stromal vascular fraction (SVF) of adipose tissue, triggering vasculogenesis in vitro in the absence of extrinsic growth factors. Our results suggest that αvβ3-RGD-driven signaling in the formation of capillary-like structures prevents the activation of the caspase 8 pathway and activates the FAK/paxillin pathway, both responsible for endothelial cells (ECs) survival and migration. We also show that prevascularized αvβ3 integrin-specific constructs inosculate with the host vascular system fostering in vivo neovascularization. Overall, this work demonstrates the ability of the biomaterial to trigger vasculogenesis in an integrin-specific manner, by activating essential pathways for EC survival and migration within a self-regulatory growth factor microenvironment. This strategy represents an improvement to current vascularization routes for Tissue Engineering constructs, potentially enhancing their clinical applicability.
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6
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Saikia Q, Reeve H, Alzahrani A, Critchley WR, Zeqiraj E, Divan A, Harrison MA, Ponnambalam S. VEGFR endocytosis: Implications for angiogenesis. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 194:109-139. [PMID: 36631189 DOI: 10.1016/bs.pmbts.2022.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The binding of vascular endothelial growth factor (VEGF) superfamily to VEGF receptor tyrosine kinases (VEGFRs) and co-receptors regulates vasculogenesis, angiogenesis and lymphangiogenesis. A recurring theme is that dysfunction in VEGF signaling promotes pathological angiogenesis, an important feature of cancer and pro-inflammatory disease states. Endocytosis of basal (resting) or activated VEGFRs facilitates signal attenuation and endothelial quiescence. However, increasing evidence suggest that activated VEGFRs can continue to signal from intracellular compartments such as endosomes. In this chapter, we focus on the evolving link between VEGFR endocytosis, signaling and turnover and the implications for angiogenesis. There is much interest in how such understanding of VEGFR dynamics can be harnessed therapeutically for a wide range of human disease states.
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Affiliation(s)
- Queen Saikia
- School of Molecular & Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Hannah Reeve
- School of Molecular & Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Areej Alzahrani
- School of Molecular & Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - William R Critchley
- School of Molecular & Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Elton Zeqiraj
- School of Molecular & Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Aysha Divan
- School of Molecular & Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Michael A Harrison
- School of Biomedical Sciences, University of Leeds, Leeds, United Kingdom
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7
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Wen Y, Chelariu-Raicu A, Umamaheswaran S, Nick AM, Stur E, Hanjra P, Jiang D, Jennings NB, Chen X, Corvigno S, Glassman D, Lopez-Berestein G, Liu J, Hung MC, Sood AK. Endothelial p130cas confers resistance to anti-angiogenesis therapy. Cell Rep 2022; 38:110301. [PMID: 35081345 PMCID: PMC8860355 DOI: 10.1016/j.celrep.2022.110301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/02/2021] [Accepted: 01/05/2022] [Indexed: 12/24/2022] Open
Abstract
Anti-angiogenic therapies, such as anti-VEGF antibodies (AVAs), have shown promise in clinical settings. However, adaptive resistance to such therapies occurs frequently. We use orthotopic ovarian cancer models with AVA-adaptive resistance to investigate the underlying mechanisms. Genomic profiling of AVA-resistant tumors guides us to endothelial p130cas. We find that bevacizumab induces cleavage of VEGFR2 in endothelial cells by caspase-10 and that VEGFR2 fragments internalize into the nucleus and autophagosomes. Nuclear VEGFR2 and p130cas fragments, together with TNKS1BP1 (tankyrase-1-binding protein), initiate endothelial cell death. Blockade of autophagy in AVA-resistant endothelial cells retains VEGFR2 at the membrane with bevacizumab treatment. Targeting host p130cas with RGD (Arg-Gly-Asp)-tagged nanoparticles or genomic ablation of vascular p130cas in p130casflox/floxTie2Cre mice significantly extends the survival of mice with AVA-resistant ovarian tumors. Higher vascular p130cas is associated with shorter survival of individuals with ovarian cancer. Our findings identify opportunities for new strategies to overcome adaptive resistance to AVA therapy.
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Affiliation(s)
- Yunfei Wen
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA.
| | - Anca Chelariu-Raicu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Sujanitha Umamaheswaran
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Alpa M Nick
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Elaine Stur
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Pahul Hanjra
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Dahai Jiang
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA; Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nicholas B Jennings
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Xiuhui Chen
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Sara Corvigno
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Deanna Glassman
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA
| | - Gabriel Lopez-Berestein
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jinsong Liu
- Department of Pathology/Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mien-Chie Hung
- Graduate Institute of Biomedical Sciences, Center for Molecular Medicine, China Medical University, Taichung, Taiwan
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Boulevard, Houston, TX 77030, USA; Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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8
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Regulation of endothelial functionality through direct and immunomodulatory effects by Ni-Ti-O nanospindles on NiTi alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:112007. [PMID: 33812627 DOI: 10.1016/j.msec.2021.112007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/08/2021] [Accepted: 02/23/2021] [Indexed: 12/25/2022]
Abstract
Stent implantation has become one of the most widely used methods for the treatment of cardiovascular diseases. However, endothelial dysfunction and abnormal inflammatory response following implantation may lead to delayed re-endothelialization, resulting in vascular restenosis and stent thrombus. To address the concerns, we constructed nanospindles composed of TiO2 and Ti4Ni2O through hydrothermal treatment of amorphous Ni-Ti-O nanopores anodically grown on NiTi alloy. The results show the treatment can significantly improve hydrophilicity and reduce Ni ion release, essentially independent of hydrothermal duration. The nanospindle surfaces not only promote the expression of endothelial functionality but also activate macrophages to induce a favorable immune response, downregulate pro-inflammatory M1 markers and upregulate pro-healing M2 markers. Moreover, nitric oxide (NO) synthesis, VEGF secretion, and migration of endothelial cells are enhanced after cultured in macrophage conditioned medium. The nanospindles thus are promising as vascular stent coatings to promote re-endothelization.
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Dong W, Yang J, Zhang Y, Liu S, Ning C, Ding X, Wang W, Zhang Y, Zhang Q, Jiang L. Integrative analysis of genome-wide DNA methylation and gene expression profiles reveals important epigenetic genes related to milk production traits in dairy cattle. J Anim Breed Genet 2021; 138:562-573. [PMID: 33620112 DOI: 10.1111/jbg.12530] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 11/17/2020] [Accepted: 12/04/2020] [Indexed: 02/03/2023]
Abstract
Epigenetic modification plays a critical role in establishing and maintaining cell differentiation, embryo development, tumorigenesis and many complex diseases. However, little is known about the epigenetic regulatory mechanisms for milk production in dairy cattle. Here, we conducted an epigenome-wide study, together with gene expression profiles to identify important epigenetic candidate genes related to the milk production traits in dairy cattle. Whole-genome bisulphite sequencing and RNA sequencing were employed to detect differentially methylated genes (DMG) and differentially expressed genes (DEG) in blood samples in dry period and lactation period between two groups of cows with extremely high and low milk production performance. A total of 10,877 and 6,617 differentially methylated regions were identified between the two groups in the two periods, which corresponded to 3,601 and 2,802 DMGs, respectively. Furthermore, 156 DEGs overlap with DMGs in comparison of the two groups, and 131 DEGs overlap with DMGs in comparison of the two periods. By integrating methylome, transcriptome and GWAS data, some potential candidate genes for milk production traits in dairy cattle were suggested, such as DOCK1, PTK2 and PIK3R1. Our studies may contribute to a better understanding of epigenetic modification on milk production traits of dairy cattle.
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Affiliation(s)
- Wanting Dong
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jie Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yu Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shuli Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Chao Ning
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
| | - Xiangdong Ding
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wenwen Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
| | - Yi Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qin Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China.,College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China
| | - Li Jiang
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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10
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Posada-Duque RA, Cardona-Gómez GP. CDK5 Targeting as a Therapy for Recovering Neurovascular Unit Integrity in Alzheimer's Disease. J Alzheimers Dis 2020; 82:S141-S161. [PMID: 33016916 DOI: 10.3233/jad-200730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The neurovascular unit (NVU) is responsible for synchronizing the energetic demand, vasodynamic changes, and neurochemical and electrical function of the brain through a closed and interdependent interaction of cell components conforming to brain tissue. In this review, we will focus on cyclin-dependent kinase 5 (CDK5) as a molecular pivot, which plays a crucial role in the healthy function of neurons, astrocytes, and the endothelium and is implicated in the cross-talk of cellular adhesion signaling, ion transmission, and cytoskeletal remodeling, thus allowing the individual and interconnected homeostasis of cerebral parenchyma. Then, we discuss how CDK5 overactivation affects the integrity of the NVU in Alzheimer's disease (AD) and cognitive impairment; we emphasize how CDK5 is involved in the excitotoxicity spreading of glutamate and Ca2+ imbalance under acute and chronic injury. Additionally, we present pharmacological and gene therapy strategies for producing partial depletion of CDK5 activity on neurons, astrocytes, or endothelium to recover neuroplasticity and neurotransmission, suggesting that the NVU should be the targeted tissue unit in protective strategies. Finally, we conclude that CDK5 could be effective due to its intervention on astrocytes by its end feet on the endothelium and neurons, acting as an intermediary cell between systemic and central communication in the brain. This review provides integrated guidance regarding the pathogenesis of and potential repair strategies for AD.
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Affiliation(s)
- Rafael Andrés Posada-Duque
- Cellular and Molecular Neurobiology Area, Group of Neuroscience of Antioquia, SIU, University of Antioquia, Medellín, Colombia.,Institute of Biology, Faculty of Exact and Natural Sciences, University of Antioquia, Medellín, Colombia
| | - Gloria Patricia Cardona-Gómez
- Cellular and Molecular Neurobiology Area, Group of Neuroscience of Antioquia, SIU, University of Antioquia, Medellín, Colombia
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11
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Changchien C, Chen Y, Chang H, Chang S, Tsai W, Tsai H, Wang C, Lee H, Tsai C. Effect of malignant-associated pleural effusion on endothelial viability, motility and angiogenesis in lung cancer. Cancer Sci 2020; 111:3747-3758. [PMID: 32706142 PMCID: PMC7541005 DOI: 10.1111/cas.14584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 12/30/2022] Open
Abstract
Malignant pleural effusion (MPE) and paramalignant pleural effusion (PPE) remain debilitating complications in lung cancer patients with poor prognosis and limited treatment options. The role of vascular endothelial cells has not been explored in the pleural environment of lung cancer. By integrating MPE and PPE as malignant-associated pleural fluid (MAPF), the current study aimed to evaluate the effect of MAPF on cell proliferation, migration and angiogenesis of HUVEC. First, increased capillaries were identified in the subpleural layer of lung adenocarcinoma. Compatible with pathological observations, the ubiquitous elevation of HUVEC survival was identified in MAPF culture regardless of the underlying cancer type, the driver gene mutation, prior treatments and evidence of malignant cells in pleural fluid. Moreover, MAPF enhanced HUVEC motility with the formation of lamellipodia and filopodia and focal adhesion complex. Tube formation assay revealed angiogenic behavior with the observation of sheet-like structures. HUVEC cultured with MAPF resulted in a significant increase in MAPK phosphorylation. Accompanied with VEGFR2 upregulation in MAPF culture, there was increased expressions of p-STAT3, HIF-1α and Nf-kB. VEGF/VEGFR2 blockade regressed endothelial migration and angiogenesis but not cell proliferation. Our data indicate the angiogenic activities of MAPF on vascular endothelial cells that revealed increased pleural capillaries in lung cancer. Targeting the VEGF/VEGFR2 pathway might modulate the angiogenic propensity of MAPF in future clinical investigations.
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MESH Headings
- Aged
- Cell Line, Tumor
- Cell Movement/genetics
- Cell Proliferation/genetics
- Cell Survival/genetics
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Female
- Human Umbilical Vein Endothelial Cells
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Lung Neoplasms/complications
- Lung Neoplasms/genetics
- Lung Neoplasms/pathology
- Male
- NF-kappa B/genetics
- Neovascularization, Pathologic/complications
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/pathology
- Pleural Effusion/genetics
- Pleural Effusion, Malignant/complications
- Pleural Effusion, Malignant/genetics
- Pleural Effusion, Malignant/pathology
- STAT3 Transcription Factor/genetics
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor Receptor-2/genetics
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Affiliation(s)
- Chih‐Ying Changchien
- Department of Internal MedicineTri‐Service General Hospital, National Defense Medical CenterTaipeiTaiwan
- Department of Biology and AnatomyNational Defense Medical CenterTaipeiTaiwan
| | - Ying Chen
- Department of Biology and AnatomyNational Defense Medical CenterTaipeiTaiwan
| | - Hsin‐Han Chang
- Department of Biology and AnatomyNational Defense Medical CenterTaipeiTaiwan
| | - Shan‐Yueh Chang
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineTri‐Service General Hospital, National Defense Medical CenterTaipeiTaiwan
| | - Wen‐Chiuan Tsai
- Department of PathologyTri‐Service General Hospital, National Defense Medical CenterTaipeiTaiwan
| | - Hao‐Chung Tsai
- Division of Chest MedicineDepartment of Internal MedicineTri‐Service General Hospital Songshan Branch, National Defense Medical CenterTaipeiTaiwan
| | - Chieh‐Yung Wang
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineTri‐Service General Hospital, National Defense Medical CenterTaipeiTaiwan
| | - Herng‐Sheng Lee
- Department of Pathology and Laboratory MedicineKaohsiung Veterans General HospitalKaohsiungTaiwan
| | - Chen‐Liang Tsai
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineTri‐Service General Hospital, National Defense Medical CenterTaipeiTaiwan
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12
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Roy-Luzarraga M, Abdel-Fatah T, Reynolds LE, Clear A, Taylor JG, Gribben JG, Chan S, Jones L, Hodivala-Dilke K. Association of Low Tumor Endothelial Cell pY397-Focal Adhesion Kinase Expression With Survival in Patients With Neoadjuvant-Treated Locally Advanced Breast Cancer. JAMA Netw Open 2020; 3:e2019304. [PMID: 33107920 PMCID: PMC7592032 DOI: 10.1001/jamanetworkopen.2020.19304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPORTANCE Determining the risk of relapse after neoadjuvant chemotherapy in patients with locally advanced breast cancer is required to offer alternative therapeutic strategies. OBJECTIVE To examine whether endothelial cell phosphorylated-focal adhesion kinase (EC-pY397-FAK) expression in patients with treatment-naive locally advanced breast cancer is a biomarker for chemotherapy sensitivity and is associated with survival after neoadjuvant chemotherapy. DESIGN, SETTING, AND PARTICIPANTS In this prognostic study, expression levels of EC-pY397-FAK and tumor cell (TC)-pY397-FAK were determined by immunohistochemistry in prechemotherapy core biopsies from 82 female patients with locally advanced breast cancer treated with anthracycline-based combination neoadjuvant chemotherapy at Nottingham City Hospital in Nottingham, UK. Median follow-up time was 67 months. The study was conducted from December 1, 2010, to September 28, 2019, and data analysis was performed from October 2, 2019, to March 31, 2020. EXPOSURES All women underwent surgery followed by adjuvant radiotherapy and, if tumors were estrogen receptor-positive, 5-year tamoxifen treatment. MAIN OUTCOMES AND MEASURES Outcomes were pathologic complete response and 5-year relapse-free survival examined using Kaplan-Meier, univariable logistic, multivariable logistic, and Cox proportional hazards models. RESULTS A total of 82 women (age, 29-76 years) with locally advanced breast cancer (stage IIA-IIIC) were included. Of these, 21 women (26%) had high EC-pY397-FAK expression that was associated with estrogen receptor positivity (71% vs 46%; P = .04), progesterone receptor positivity (67% vs 39%; P = .03), high Ki67 (86% vs 41%; P < .001), 4-immunohistochemically stained luminal-B (52% vs 8%; P < .001), higher tumor category (T3/T4 category: 90% vs 59%; P = .01), high lymph node category (N2-3 category: 43% vs 5%; P < .001), and high tumor node metastasis stage (IIIA-IIIC: 90% vs 66%; P = .03). Of 21 patients with high EC-pY397-FAK expression levels, none showed pathologic complete response, compared with 11 of 61 patients with low EC-pY397-FAK expression levels who showed pathologic complete response (odds ratio, 0.70; 95% CI, 0.61-0.82; P = .04). High EC-pY397-FAK expression levels and high blood vessel density (BVD) were associated with shorter 5-year relapse-free survival compared with those with low EC-pY397-FAK expression levels (hazard ratio [HR], 2.21; 95% CI, 1.17-4.20; P = .01) and low BVD (HR, 2.2; 95% CI, 1.15-4.35; P = .02). High TC-pY397-FAK expression levels in 15 of 82 women (18%) were not associated significantly with pathologic complete response or 5-year relapse-free survival. A multivariable Cox regression model for 5-year relapse-free survival indicated that high EC-pY397-FAK expression levels was an independent poor prognostic factor after controlling for other validated prognostic factors (HR, 3.91; 95% CI, 1.42-10.74; P = .01). Combined analysis of EC-pY397-FAK expression levels, TC-pY397-FAK expression levels, and BVD improved prognostic significance over individually tested features. CONCLUSIONS AND RELEVANCE The findings of this study suggest that low EC-pY397-FAK expression levels are associated with chemotherapy sensitivity and improved 5-year relapse-free survival after systemic therapy. Combined analysis of high EC-pY397-FAK expression levels, high TC-pY397-FAK expression levels, and high BVD appeared to identify a high-risk population.
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Affiliation(s)
- Marina Roy-Luzarraga
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
| | - Tarek Abdel-Fatah
- Department of Clinical Oncology, University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
- Pathology Department, National Liver Institute, Minoufyia University, Al Minufiyah, Egypt
| | - Louise E. Reynolds
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
| | - Andrew Clear
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
| | - Joseph G. Taylor
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
| | - John G. Gribben
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
| | - Stephen Chan
- Department of Clinical Oncology, University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Louise Jones
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
| | - Kairbaan Hodivala-Dilke
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom
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13
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Farzaneh Behelgardi M, Zahri S, Gholami Shahvir Z, Mashayekhi F, Mirzanejad L, Asghari SM. Targeting signaling pathways of VEGFR1 and VEGFR2 as a potential target in the treatment of breast cancer. Mol Biol Rep 2020; 47:2061-2071. [PMID: 32072404 DOI: 10.1007/s11033-020-05306-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 02/05/2020] [Indexed: 12/28/2022]
Abstract
Tumor angiogenesis allows tumor cells to grow and migrate toward the bloodstream and initiate metastasis. The interactions of vascular endothelial growth factors (VEGF) A and B, as the important regulating factors for blood vessel growth, with VEGFR1 and VEGFR2 trigger angiogenesis process. Thus, preventing these interactions led to the effective blockade of VEGF/VEGFRs signaling pathways. In this study, the inhibitory effect of a 23-mer linear peptide (VGB4), which binds to both VEGFR1 and VEGFR2, on VEGF-stimulated Human Umbilical Vein Endothelial Cells (HUVECs) and highly metastatic human breast cancer cell MDA-MB-231 proliferation was examined using MTT assay. To assess the anti-migratory potential of VGB4, HUVECs and also MDA-MB-231 cells wound healing assay was carried out at 48 and 72 h. In addition, downstream signaling pathways of VEGF associated with cell migration and invasion were investigated by quantification of mRNA and protein expression using real-time quantitative PCR and western blot in 4T1 tumor tissues and MDA-MB-231 cells. The results revealed that VGB4 significantly impeded proliferation of HUVECs and MDA-MB-231 cells, in a dose- and time-dependent manner, and migration of HUVECs and MDA-MB-231 cells for a prolonged time. We also observed statistically significant reduction of the transcripts and protein levels of focal adhesion kinase (FAK), Paxillin, matrix metalloproteinase-2 (MMP-2), RAS-related C3 botulinum substrate 1 (Rac1), P21-activated kinase-2 (PAK-2) and Cofilin-1 in VGB4-treated 4T1 tumor tissues compared to controls. The protein levels of phospho-VEGFR1, phospho-VEGFR2, Vimentin, β-catenin and Snail were markedly decreased in both VGB4-treated MDA-MB-231 cells and VGB4-treated 4T1 tumor tissues compared to controls as evidenced by western blotting. These results, in addition to our previous studies, confirm that dual blockage of VEGFR1 and VEGFR2, due to the inactivation of diverse signaling mediators, effectively suppresses tumor growth and metastasis.
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Affiliation(s)
| | - Saber Zahri
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | | | - Farhad Mashayekhi
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - Laleh Mirzanejad
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - S Mohsen Asghari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran. .,Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran.
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14
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Distinct gene expression profiles between primary breast cancers and brain metastases from pair-matched samples. Sci Rep 2019; 9:13343. [PMID: 31527824 PMCID: PMC6746866 DOI: 10.1038/s41598-019-50099-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 09/06/2019] [Indexed: 02/08/2023] Open
Abstract
Our objectives were to determine whether clinic-pathological markers and immune-related gene signatures in breast cancer exhibit any change upon brain metastasis and whether previously reported genes significantly associated with brain metastases and the epithelial-mesenchymal transition (EMT) were reproducible and consistent in our dataset. Sixteen pair-matched samples from primary breast cancers and brain metastases diagnosed were collected from the Japan Clinical Oncology Group Breast Cancer Study Group. Gene expression profiles for immune-, brain metastases-, and EMT-related genes were compared between primary breast cancers and brain metastases. Potential therapeutic target genes of 41 FDA-approved or under-investigation agents for brain metastases were explored. Immune-related signatures exhibited significantly lower gene expression in brain metastases than in primary breast cancers. No significant differences were detected for the majority of genes associated with brain metastases and EMT in the two groups. Among 41 therapeutic target candidates, VEGFA and DNMT3A demonstrated significantly higher gene expression in brain metastases. We found that distinct patterns of gene expression exist between primary breast cancers and brain metastases. Further studies are needed to explore whether these distinct expression profiles derive from or underlie disease status and compare these features between metastases to the brain and other sites.
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15
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Endothelial Ca 2+ Signaling, Angiogenesis and Vasculogenesis: just What It Takes to Make a Blood Vessel. Int J Mol Sci 2019; 20:ijms20163962. [PMID: 31416282 PMCID: PMC6721072 DOI: 10.3390/ijms20163962] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 12/13/2022] Open
Abstract
It has long been known that endothelial Ca2+ signals drive angiogenesis by recruiting multiple Ca2+-sensitive decoders in response to pro-angiogenic cues, such as vascular endothelial growth factor, basic fibroblast growth factor, stromal derived factor-1α and angiopoietins. Recently, it was shown that intracellular Ca2+ signaling also drives vasculogenesis by stimulation proliferation, tube formation and neovessel formation in endothelial progenitor cells. Herein, we survey how growth factors, chemokines and angiogenic modulators use endothelial Ca2+ signaling to regulate angiogenesis and vasculogenesis. The endothelial Ca2+ response to pro-angiogenic cues may adopt different waveforms, ranging from Ca2+ transients or biphasic Ca2+ signals to repetitive Ca2+ oscillations, and is mainly driven by endogenous Ca2+ release through inositol-1,4,5-trisphosphate receptors and by store-operated Ca2+ entry through Orai1 channels. Lysosomal Ca2+ release through nicotinic acid adenine dinucleotide phosphate-gated two-pore channels is, however, emerging as a crucial pro-angiogenic pathway, which sustains intracellular Ca2+ mobilization. Understanding how endothelial Ca2+ signaling regulates angiogenesis and vasculogenesis could shed light on alternative strategies to induce therapeutic angiogenesis or interfere with the aberrant vascularization featuring cancer and intraocular disorders.
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16
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Dasatinib Reinitiation After Poststroke Thrombolysis Associated with Symptomatic Intracerebral Hemorrhage. World Neurosurg 2019; 125:383-386. [PMID: 30797908 DOI: 10.1016/j.wneu.2019.02.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 02/10/2019] [Accepted: 02/10/2019] [Indexed: 11/24/2022]
Abstract
BACKGROUND Dasatinib, a tyrosine kinase inhibitor commonly used in treatment of acute lymphoblastic leukemia and chronic myelogenous leukemia, is often associated with hemorrhagic complications. Safety of dasatinib after thrombolytic therapy in acute ischemic stroke is unknown. CASE DESCRIPTION A 63-year-old man with multiple vascular risk factors and chronic myelogenous leukemia (in molecular remission) on dasatinib presented with signs and symptoms of right hemispheric stroke owing to acute intracranial internal carotid artery occlusion that was treated with intravenous thrombolysis and mechanical thrombectomy resulting in near-complete resolution of stroke symptoms. The patient developed clinical worsening (>24 hours of thrombolytic therapy) after receiving a second dose of dasatinib that was due to symptomatic intracerebral hemorrhage and necessitated decompressive hemicraniectomy. Routine coagulation profile was normal. The etiology of this hemorrhagic complication was likely secondary to primary platelet dysfunction due to dasatinib as reported in some recent in vitro and ex vivo studies. CONCLUSIONS It is advisable to withhold dasatinib during the poststroke period owing to its associated risk of symptomatic intracerebral hemorrhage.
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17
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Mechanobiology of mice cervix: expression profile of mechano-related molecules during pregnancy. Cell Tissue Res 2019; 376:443-456. [PMID: 30671632 DOI: 10.1007/s00441-018-02983-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 12/11/2018] [Indexed: 01/10/2023]
Abstract
There is a known reciprocation between the chronic exertion of force on tissue and both increased tissue density (e.g., bone) and hypertrophy (e.g., heart). This can also be seen in cervical tissue where the excessive gravitational forces associated with multiple fetal pregnancies promote preterm births. While there is a well-known regulation of cervical remodeling (CR) by sex steroid hormones and growth factors, the role of mechanical force is less appreciated. Using proteome-wide technology, we previously provided evidence for the presence of and alteration in mechano-related signaling molecules in the mouse cervix during pregnancy. Here, we profile the expression of select cytoskeletal factors (filamin-A, gelsolin, vimentin, actinin-1, caveolin-1, transgelin, keratin-8, profilin-1) and their associated signaling molecules [focal adhesion kinase (FAK) and the Rho GTPases CDC42, RHOA, and RHOB] in cervices of pregnant mice by real-time PCR and confocal immunofluorescence microscopy. Messenger RNA and protein levels increased for each of these 12 factors, except for 3 (keratin-8, profilin-1, RHOA) that decreased during the course of pregnancy and this corresponded with an increase in gravitational force exerted by the fetus on the cervix. We therefore conclude that size or weight of the growing fetus likely plays a key role in CR through mechanotransduction processes.
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18
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Abstract
The pulmonary endothelial cell forms a critical semi-permeable barrier between the vascular and interstitial space. As part of the blood-gas barrier in the lung, the endothelium plays a key role in normal physiologic function and pathologic disease. Changes in endothelial cell shape, defined by its plasma membrane, determine barrier integrity. A number of key cytoskeletal regulatory and effector proteins including non-muscle myosin light chain kinase, cortactin, and Arp 2/3 mediate actin rearrangements to form cortical and membrane associated structures in response to barrier enhancing stimuli. These actin formations support and interact with junctional complexes and exert forces to protrude the lipid membrane to and close gaps between individual cells. The current knowledge of these cytoskeletal processes and regulatory proteins are the subject of this review. In addition, we explore novel advancements in cellular imaging that are poised to shed light on the complex nature of pulmonary endothelial permeability.
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19
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Uzoma I, Hu J, Cox E, Xia S, Zhou J, Rho HS, Guzzo C, Paul C, Ajala O, Goodwin CR, Jeong J, Moore C, Zhang H, Meluh P, Blackshaw S, Matunis M, Qian J, Zhu H. Global Identification of Small Ubiquitin-related Modifier (SUMO) Substrates Reveals Crosstalk between SUMOylation and Phosphorylation Promotes Cell Migration. Mol Cell Proteomics 2018; 17:871-888. [PMID: 29438996 PMCID: PMC5930406 DOI: 10.1074/mcp.ra117.000014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 02/07/2018] [Indexed: 12/20/2022] Open
Abstract
Proteomics studies have revealed that SUMOylation is a widely used post-translational modification (PTM) in eukaryotes. However, how SUMO E1/2/3 complexes use different SUMO isoforms and recognize substrates remains largely unknown. Using a human proteome microarray-based activity screen, we identified over 2500 proteins that undergo SUMO E3-dependent SUMOylation. We next constructed a SUMO isoform- and E3 ligase-dependent enzyme-substrate relationship network. Protein kinases were significantly enriched among SUMOylation substrates, suggesting crosstalk between phosphorylation and SUMOylation. Cell-based analyses of tyrosine kinase, PYK2, revealed that SUMOylation at four lysine residues promoted PYK2 autophosphorylation at tyrosine 402, which in turn enhanced its interaction with SRC and full activation of the SRC-PYK2 complex. SUMOylation on WT but not the 4KR mutant of PYK2 further elevated phosphorylation of the downstream components in the focal adhesion pathway, such as paxillin and Erk1/2, leading to significantly enhanced cell migration during wound healing. These studies illustrate how our SUMO E3 ligase-substrate network can be used to explore crosstalk between SUMOylation and other PTMs in many biological processes.
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Affiliation(s)
- Ijeoma Uzoma
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Jianfei Hu
- ¶Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Eric Cox
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- ‖Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Shuli Xia
- **Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- ‡‡Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, Maryland 21205
| | - Jianying Zhou
- §§Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Hee-Sool Rho
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Catherine Guzzo
- ¶¶Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205
| | - Corry Paul
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Olutobi Ajala
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - C Rory Goodwin
- **Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- ‡‡Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, Maryland 21205
| | - Junseop Jeong
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Cedric Moore
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Hui Zhang
- §§Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Pamela Meluh
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Seth Blackshaw
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
- **Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Michael Matunis
- ¶¶Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205
| | - Jiang Qian
- ¶Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Heng Zhu
- From the ‡Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205;
- §The Center for High-Throughput Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
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A novel synthetic small molecule YF-452 inhibits tumor growth through antiangiogenesis by suppressing VEGF receptor 2 signaling. SCIENCE CHINA-LIFE SCIENCES 2017; 60:202-214. [PMID: 28194552 DOI: 10.1007/s11427-016-0369-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/26/2016] [Indexed: 12/18/2022]
Abstract
Tumor angiogenesis is characterized by abnormal vessel morphology, endowing tumor with highly hypoxia and unresponsive toward treatment. To date, mounting angiogenic factors have been discovered as therapeutic targets in antiangiogenic drug development. Among them, vascular endothelial growth factor receptor 2 (VEGFR2) inhibitors exerts potent antiangiogenic activity in tumor therapy. Therefore, it may provide a valid strategy for cancer treatment through targeting the tumor angiogenesis via VEGFR2 pathway. In this study, we established a high-profile compounds library and certificated a novel compound named N-(N-pyrrolidylacetyl)-9-(4-bromobenzyl)-1,3,4,9-tetrahydro-β-carboline (YF-452), which remarkably inhibited the migration, invasion and tube-like structure formation of human umbilical vein endothelial cells (HUVECs) with little toxicity invitro. Rat thoracic aorta ring assay indicated that YF-452 significantly blocked the formation of microvascular exvivo. In addition, YF-452 inhibited angiogenesis in chick chorioallantoic membrane (CAM) and mouse corneal micropocket assays. Moreover, YF-452 remarkably suppressed tumor growth in xenografts mice model. Furthermore, investigation of molecular mechanism revealed that YF-452 inhibited VEGF-induced phosphorylation of VEGFR2 kinase and the downstream protein kinases including extracellular signal regulated kinase (ERK), focal adhesion kinase (FAK) and Src. These results indicate that YF-452 inhibits angiogenesis and may be a potential antiangiogenic drug candidate for cancer therapy.
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21
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Guimarães R, Calhelha RC, Froufe HJC, Abreu RMV, Carvalho AM, Queiroz MJRP, Ferreira ICFR. Wild Roman chamomile extracts and phenolic compounds: enzymatic assays and molecular modelling studies with VEGFR-2 tyrosine kinase. Food Funct 2016; 7:79-83. [PMID: 26446815 DOI: 10.1039/c5fo00586h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Angiogenesis is a process by which new blood vessels are formed from the pre-existing vasculature, and it is a key process that leads to tumour development. Some studies have recognized phenolic compounds as chemopreventive agents; flavonoids, in particular, seem to suppress the growth of tumor cells modifying the cell cycle. Herein, the antiangiogenic activity of Roman chamomile (Chamaemelum nobile L.) extracts (methanolic extract and infusion) and the main phenolic compounds present (apigenin, apigenin-7-O-glucoside, caffeic acid, chlorogenic acid, luteolin, and luteolin-7-O-glucoside) was evaluated through enzymatic assays using the tyrosine kinase intracellular domain of the Vascular Endothelium Growth Factor Receptor-2 (VEGFR-2), which is a transmembrane receptor expressed fundamentally in endothelial cells involved in angiogenesis, and molecular modelling studies. The methanolic extract showed a lower IC50 value (concentration that provided 50% of VEGFR-2 inhibition) than the infusion, 269 and 301 μg mL(-1), respectively. Regarding phenolic compounds, luteolin and apigenin showed the highest capacity to inhibit the phosphorylation of VEGFR-2, leading us to believe that these compounds are involved in the activity revealed by the methanolic extract.
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Affiliation(s)
- Rafaela Guimarães
- Centro de Investigação de Montanha, Escola Superior Agrária, Campus de Santa Apolónia, apartado 1172, 5301-854 Bragança, Portugal. and Centro de Química da Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ricardo C Calhelha
- Centro de Investigação de Montanha, Escola Superior Agrária, Campus de Santa Apolónia, apartado 1172, 5301-854 Bragança, Portugal. and Centro de Química da Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Hugo J C Froufe
- Centro de Investigação de Montanha, Escola Superior Agrária, Campus de Santa Apolónia, apartado 1172, 5301-854 Bragança, Portugal.
| | - Rui M V Abreu
- Centro de Investigação de Montanha, Escola Superior Agrária, Campus de Santa Apolónia, apartado 1172, 5301-854 Bragança, Portugal.
| | - Ana Maria Carvalho
- Centro de Investigação de Montanha, Escola Superior Agrária, Campus de Santa Apolónia, apartado 1172, 5301-854 Bragança, Portugal.
| | | | - Isabel C F R Ferreira
- Centro de Investigação de Montanha, Escola Superior Agrária, Campus de Santa Apolónia, apartado 1172, 5301-854 Bragança, Portugal.
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22
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Yang WJ, Hu J, Uemura A, Tetzlaff F, Augustin HG, Fischer A. Semaphorin-3C signals through Neuropilin-1 and PlexinD1 receptors to inhibit pathological angiogenesis. EMBO Mol Med 2016. [PMID: 26194913 PMCID: PMC4604683 DOI: 10.15252/emmm.201404922] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Retinopathy of prematurity causes visual impairment due to destructive neoangiogenesis after degeneration of the retinal microvasculature. This study was aimed at analyzing whether local delivery of Semaphorin-3C (Sema3C) suppresses pathological retinal angiogenesis. Sema3C exerted potent inhibiting effects in cellular models of angiogenesis. In an endothelial cell xenotransplantation assay, Sema3C acted primarily on immature microvessels by inducing endothelial cell apoptosis. Intravitreal administration of recombinant Sema3C disrupted endothelial tip cell formation and cell–cell contacts, which led to decreased vascular bed expansion and vessel branching in the growing retinal vasculature of newborn mice, while not affecting mature vessels in the adult retina. Sema3C administration strongly inhibited the formation of pathological pre-retinal vascular tufts during oxygen-induced retinopathy. Mechanistically, Sema3C signaled through the receptors Neuropilin-1 and PlexinD1, which were strongly expressed on vascular tufts, induced VE-cadherin internalization, and abrogated vascular endothelial growth factor (VEGF)-induced activation of the kinases AKT, FAK, and p38MAPK. This disrupted endothelial cell junctions, focal adhesions, and cytoskeleton assembly resulted in decreased cell migration and survival. Thus, this study identified Sema3C as a potent and selective inhibitor of pathological retinal angiogenesis.
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Affiliation(s)
- Wan-Jen Yang
- Vascular Signaling and Cancer (A270), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM) Heidelberg University, Mannheim, Germany
| | - Junhao Hu
- Vascular Oncology and Metastasis (A190), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Akiyoshi Uemura
- Department of Retinal Vascular Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Fabian Tetzlaff
- Vascular Signaling and Cancer (A270), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Hellmut G Augustin
- Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM) Heidelberg University, Mannheim, Germany Vascular Oncology and Metastasis (A190), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Andreas Fischer
- Vascular Signaling and Cancer (A270), German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany Vascular Biology and Tumor Angiogenesis, Medical Faculty Mannheim (CBTM) Heidelberg University, Mannheim, Germany Department of Medicine I and Clinical Chemistry, Heidelberg University, Heidelberg, Germany
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23
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Human neural stem cell-induced endothelial morphogenesis requires autocrine/paracrine and juxtacrine signaling. Sci Rep 2016; 6:29029. [PMID: 27374240 PMCID: PMC4931512 DOI: 10.1038/srep29029] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/09/2016] [Indexed: 12/25/2022] Open
Abstract
Transplanted neural stem cells (NSC) interact with the host brain microenvironment. A neovascularization is commonly observed in the vicinity of the cell deposit, which is correlated with behavioral improvements. To elucidate the signaling mechanisms between human NSCs and endothelial cells (ECs), these were cocultured in an in vitro model in which NSC-induced endothelial morphogenesis produced a neurovascular environment. Soluble (autocrine/paracrine) and contact–mediated (juxtacrine) signaling molecules were evaluated for two conditionally immortalized fetal NSC lines derived from the cortical anlage (CTXOE03) and ganglionic eminence (STROC05), as well as an adult EC line (D3) derived from the cerebral microvasculature of a hippocampal biopsy. STROC05 were 4 times as efficient to induce endothelial morphogenesis compared to CTXOE03. The cascade of reciprocal interactions between NSCs and ECs in this process was determined by quantifying soluble factors, receptor mapping, and immunocytochemistry for extracellular matrix molecules. The mechanistic significance of these was further evaluated by pharmacological blockade. The sequential cell-specific regulation of autocrine/paracrine and juxtacrine signaling accounted for the differential efficiency of NSCs to induce endothelial morphogenesis. These in vitro studies shed new light on the reciprocal interactions between NSCs and ECs, which are pivotal for our mechanistic understanding of the efficacy of NSC transplantation.
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Abstract
Vascular endothelial growth factor (VEGF) plays a fundamental role in angiogenesis and endothelial cell biology, and has been the subject of intense study as a result. VEGF acts via a diverse and complex range of signaling pathways, with new targets constantly being discovered. This review attempts to summarize the current state of knowledge regarding VEGF cell signaling in endothelial and cardiovascular biology, with a particular emphasis on its role in angiogenesis.
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Affiliation(s)
- Ian Evans
- Centre for Cardiovascular Biology and Medicine, Division of Medicine, University College London, Rayne Building, 5 University Street, London, WC1E 6JF, UK,
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25
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Proline-rich tyrosine kinase 2 via enhancing signal transducer and activator of transcription 3-dependent cJun expression mediates retinal neovascularization. Sci Rep 2016; 6:26480. [PMID: 27210483 PMCID: PMC4876476 DOI: 10.1038/srep26480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 05/04/2016] [Indexed: 12/23/2022] Open
Abstract
Despite the involvement of proline-rich tyrosine kinase 2 (Pyk2) in endothelial cell angiogenic responses, its role in pathological retinal angiogenesis is not known. In the present study, we show that vascular endothelial growth factor A (VEGFA) induces Pyk2 activation in mediating human retinal microvascular endothelial cell (HRMVEC) migration, sprouting and tube formation. Downstream to Pyk2, VEGFA induced signal transducer and activator of transcription 3 (STAT3) activation and cJun expression in the modulation of HRMVEC migration, sprouting and tube formation. Consistent with these observations, hypoxia induced activation of Pyk2-STAT3-cJun signaling axis and siRNA-mediated downregulation of Pyk2, STAT3 or cJun levels substantially inhibited hypoxia-induced retinal endothelial cell proliferation, tip cell formation and neovascularization. Together, these observations suggest that activation of Pyk2-mediated STAT3-cJun signaling is required for VEGFA-induced HRMVEC migration, sprouting and tube formation in vitro and hypoxia-induced retinal endothelial cell proliferation, tip cell formation and neovascularization in vivo.
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26
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Mayor R, Etienne-Manneville S. The front and rear of collective cell migration. Nat Rev Mol Cell Biol 2016; 17:97-109. [PMID: 26726037 DOI: 10.1038/nrm.2015.14] [Citation(s) in RCA: 514] [Impact Index Per Article: 64.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Collective cell migration has a key role during morphogenesis and during wound healing and tissue renewal in the adult, and it is involved in cancer spreading. In addition to displaying a coordinated migratory behaviour, collectively migrating cells move more efficiently than if they migrated separately, which indicates that a cellular interplay occurs during collective cell migration. In recent years, evidence has accumulated confirming the importance of such intercellular communication and exploring the molecular mechanisms involved. These mechanisms are based both on direct physical interactions, which coordinate the cellular responses, and on the collective cell behaviour that generates an optimal environment for efficient directed migration. The recent studies have described how leader cells at the front of cell groups drive migration and have highlighted the importance of follower cells and cell-cell communication, both between followers and between follower and leader cells, to improve the efficiency of collective movement.
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Affiliation(s)
- Roberto Mayor
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Sandrine Etienne-Manneville
- Institut Pasteur, CNRS UMR 3691, Cell Polarity, Migration and Cancer Unit, 25 Rue du Dr Roux, 75724 Paris Cedex 15, France
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27
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Wang H, Wang X, Qu J, Yue Q, Hu Y, Zhang H. VEGF Enhances the Migration of MSCs in Neural Differentiation by Regulating Focal Adhesion Turnover. J Cell Physiol 2015; 230:2728-42. [PMID: 25820249 DOI: 10.1002/jcp.24997] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/23/2015] [Indexed: 12/26/2022]
Abstract
Mesenchymal stem cells (MSCs) hold great promise in neural regeneration, due to their intrinsic neuronal potential and migratory tropism to damaged nervous tissues. However, the chemotactic signals mediating the migration of MSCs remain poorly understood. Here, we investigated the regulatory roles for focal adhesion kinase (FAK) and Rac1 in vascular endothelial growth factor (VEGF)-stimulated migration of MSCs in neural differentiation. We found that MSCs in various differentiation states show significant different chemotactic responses to VEGF and cells in 24-h preinduction state possess the highest migration speed and efficiency. FAK, as the downstream signaling molecule, is involved in the VEGF-induced migration by regulating the assembly and distribution of focal adhesions (FAs) and reorganization of F-actin. The features of FAs and cytoskeletons and the ability of lamellipodia formation are closely related to the neural differentiation states of MSCs. VEGF promotes FA formation with an asymmetric distribution of FAs and induces the activation of Y397-FAK and Y31/118-paxillin of undifferentiated and 24-h preinduced MSCs in a time-dependent manner. Inhibition of FAK by PF-228 or expressing FAK-Y397F mutant impairs the dynamics of FAs in MSCs during VEGF-induced migration. Furthermore, Rac1 regulates FA formation in a FAK-dependent manner. Overexpression of constitutive activated mutants of Rac1 increases the number of FAs in undifferentiated and 24-h preinduced MSCs, while VEGF-induced increase of FA formation is decreased by inhibiting FAK by PF-228. Collectively, these results demonstrate that FAK and Rac1 signalings coordinately regulate the dynamics of FAs during VEGF-induced migration of MSCs in varying neural differentiation states.
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Affiliation(s)
- Huihui Wang
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou, China
| | - Xingkai Wang
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou, China
| | - Jing Qu
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou, China
| | - Qing Yue
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou, China
| | - Ya'nan Hu
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou, China
| | - Huanxiang Zhang
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Suzhou, China
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28
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Huang SW, Lien JC, Kuo SC, Huang TF. PPemd26, an anthraquinone derivative, suppresses angiogenesis via inhibiting VEGFR2 signalling. Br J Pharmacol 2015; 171:5728-42. [PMID: 25091695 DOI: 10.1111/bph.12872] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 07/25/2014] [Accepted: 07/29/2014] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE Angiogenesis contributes to coronary heart disease, immune disorders and numerous malignancies. VEGF-A and its receptors (VEGFRs) play a pivotal role in regulating angiogenesis. In an effort to discover more effective inhibitors of tumour angiogenesis, we have analysed the actions of a novel anthraquinone derivative, PPemd26, and explored its anti-angiogenic mechanisms. EXPERIMENTAL APPROACH The effects of PPemd26 were evaluated in vitro using HUVEC cultures to assess proliferation, migration, invasion and tube formation. Immunoblotting was used to analyse phosphorylation of signalling kinases. Effects in vivo were assayed using Matrigel plug and xenograft mouse models. KEY RESULTS PPemd26 significantly inhibited VEGF-A-induced proliferation, migration, invasion and tube formation of HUVECs. PPemd26 also attenuated VEGF-A-induced microvessel sprouting from rat aortic rings ex vivo and suppressed formation of new blood vessels in implanted Matrigel plugs in models of angiogenesis in vivo. In addition, PPemd26 inhibited VEGF-A-induced phosphorylation of VEGFR2 and its downstream protein kinases including Akt, focal adhesion kinase, ERK and Src. Furthermore, systemic administration of PPemd26 suppressed the growth of s.c. xenografts of human colon carcinoma in vivo. Histochemical analysis of the xenografts revealed a marked reduction in stainingfor the vascular marker CD31 and proliferation marker Ki-67. CONCLUSIONS AND IMPLICATIONS This study provides evidence that PPemd26 suppressed tumour angiogenesis through inhibiting VEGFR2 signalling pathways, suggesting that PPemd26 is a potential drug candidate for developing anti-angiogenic agents for the treatment of cancer and angiogenesis-related diseases.
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Affiliation(s)
- S W Huang
- Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan
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29
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Zeng Z, Huang WD, Gao Q, Su ML, Yang YF, Liu ZC, Zhu BH. Arnebin-1 promotes angiogenesis by inducing eNOS, VEGF and HIF-1α expression through the PI3K-dependent pathway. Int J Mol Med 2015; 36:685-97. [PMID: 26202335 PMCID: PMC4533782 DOI: 10.3892/ijmm.2015.2292] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 06/24/2015] [Indexed: 12/26/2022] Open
Abstract
Arnebin-1, a naphthoquinone derivative, plays a crucial role in the wound healing properties of Zicao (a traditional wound healing herbal medicine). It has been noted that Arnebin-1, in conjunction with vascular endothelial growth factor (VEGF), exerts a synergistic pro-angiogenic effect on human umbilical vein endothelial cells (HUVECs) and accelerates the healing process of diabetic wounds. However, the mechanisms responsible for the pro-angiogenic effect of arnebin-1 on HUVECs and its healing effect on diabetic wounds have not yet been fully elucidated. In this study, in an aim to elucidate these mechanisms of action of arnebin-1, we investigated the effects of arnebin-1 on the VEGF receptor 2 (VEGFR2) and the phosphoinositide 3-kinase (PI3K)-dependent signaling pathways in HUVECs treated with VEGF by western blot analysis. The pro-angiogenic effects of arnebin-1 on HUVECs, including its effects on proliferation and migration, were evaluated by MTT assay, Transwell assay and tube formation assay in vitro. The expression levels of hypoxia-inducible factor (HIF)-1α, endothelial nitric oxide synthase (eNOS) and VEGF were determined by western blot analysis in the HUVECs and wound tissues obtained from non-diabetic and diabetic rats. CD31 expression in the rat wounds was evaluated by immunofluorescence staining. We found that the activation of the VEGFR2 signaling pathway induced by VEGF was enhanced by arnebin-1. Arnebin-1 promoted endothelial cell proliferation, migration and tube formation through the PI3K-dependent pathway. Moreover, Arnebin-1 significantly increased the eNOS, VEGF and HIF-1α expression levels in the HUVECs and accelerated the healing of diabetic wounds through the PI3K-dependent signaling pathway. CD31 expression was markedly enhanced in the wounds of diabetic rats treated with arnebin-1 compared to the wounds of untreated diabetic rats. Therefore, the findings of the present study indicate that arnebin-1 promotes the wound healing process in diabetic rats by eliciting a pro-angiogenic response.
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Affiliation(s)
- Zhi Zeng
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wen-Dong Huang
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Qi Gao
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Mei-Ling Su
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yong-Fei Yang
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhao-Chun Liu
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Bang-Hao Zhu
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Centre, Zhongshan School of Medicine, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
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30
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Das JK, Felty Q. Microvascular lesions by estrogen-induced ID3: its implications in cerebral and cardiorenal vascular disease. J Mol Neurosci 2014; 55:618-31. [PMID: 25129100 DOI: 10.1007/s12031-014-0401-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/07/2014] [Indexed: 11/25/2022]
Abstract
Severe symptoms of cerebral and cardiorenal vascular diseases can be triggered when cerebral, coronary, or glomerular arterioles grow inappropriately as a result of abnormal cell proliferation. The risk factor(s) and molecular mechanisms responsible for microvascular lesion formation are largely unknown. Although controversial, both animal and epidemiological studies have shown that estrogen increases the risk of stroke which may be due to microvascular lesions. Since microvascular diseases are characterized by excessive vessel growth, it is plausible that estrogen-induced neovascularization contributes to the growth of microvascular lesions. We present evidence for how ID3 overexpression in endothelial cells contributes to the development of an estrogen-induced neovascular phenotype with an additional focus on Pyk2 kinase. Our data showed that ID3 overexpression increased neovascularization, cell migration, and spheroid growth of human cerebral microvascular endothelial cells, hCMEC/D3. ID3-overexpressing cells showed significant estrogen-induced G2/M phase transition. Estrogen treatment increased both ID3 phosphorylation; total protein that was inhibited by tamoxifen, and Pyk2-mediated estrogen-induced ID3 mRNA expression. These findings suggest that Pyk2 signals ID3 expression and ID3 is necessary for estrogen-induced neovascularization in hCMEC/D3 cells. A better understanding of how microvascular lesions depend on ID3 may open new avenues for prevention and treatment of neurological diseases.
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Affiliation(s)
- Jayanta K Das
- Department of Environmental and Occupational Health, Florida International University, 11200 SW 8th Street, AHC-2 Bldg. Rm 593, Miami, FL, USA
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31
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Nuclear factor kappa-B signaling is integral to ocular neovascularization in ischemia-independent microenvironment. PLoS One 2014; 9:e101602. [PMID: 25050547 PMCID: PMC4106825 DOI: 10.1371/journal.pone.0101602] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 06/09/2014] [Indexed: 01/24/2023] Open
Abstract
Retinal ischemia promotes the upregulation of VEGF expression and accounts for most pathological features of retinal neovascularization (NV). Paradoxically, VEGF remains the pivotal stimulator of ocular NV, despite the absence of ischemia. Therefore, the central question arises as to how the various molecular mechanisms interplay in ischemia-independent NV. It's been suggested that NFκB plays a crucial role in the pathogenesis of diabetic vasculopathies. Here, we dissected the molecular mechanism of ocular NV in the rho/VEGF transgenic mouse model, which develops subretinal NV in ischemia-independent microenvironment. Furthermore, we examined whether intravitreal administration of YC-1, a HIF-1 inhibitor, can modulate the activation of NFκB and its downstream angiogenic signaling in the mouse retina. We demonstrated that YC-1 inhibited retinal NFκB/p65 DNA binding activity and downregulated NFκB/p65, FAK, α5β1, EPO, ET-1, and MMP-9 expression at the message and the protein levels. In addition, YC-1 significantly inhibited subretinal NV by reducing the number of neovascular lesions, the area of each lesion and the total area of NV per retina. We further investigated the influence of VEGF signaling pathway on HIF-1α transcriptional activity to substantiate that this mouse model develops subretinal NV in an ischemia-independent microenvironment. Our data demonstrated that VEGF overexpression didn't have any impact on HIF-1α transcriptional activity, whereas treatment with YC-1 significantly inhibited endogenous HIF-1 activity. Our study suggests that retinal NFκB transcriptional activity is pivotal to ischemia-independent mechanisms, which lead to the local activation of angiogenic cascades. Our data also indicate that the nexus between VEGF and NFκB is implicated in triggering the angiogenic cascade that promotes retinal NV. Hence, targeting the VEGF/NFκB axis may act in a negative feedback loop to suppress ocular NV. This study suggests that inhibition of NFκB activation may be a means of turning off a “master switch” responsible for initiating and perpetuating these ocular pathologies.
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32
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Su Z, Xing L, Chen Y, Xu Y, Yang F, Zhang C, Ping Q, Xiao Y. Lactoferrin-Modified Poly(ethylene glycol)-Grafted BSA Nanoparticles as a Dual-Targeting Carrier for Treating Brain Gliomas. Mol Pharm 2014; 11:1823-34. [DOI: 10.1021/mp500238m] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhigui Su
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Lei Xing
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yinan Chen
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yurui Xu
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Feifei Yang
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Can Zhang
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Qineng Ping
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yanyu Xiao
- Department
of Pharmaceutics,
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
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33
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Su Y, Besner GE. Heparin-binding EGF-like growth factor (HB-EGF) promotes cell migration and adhesion via focal adhesion kinase. J Surg Res 2014; 189:222-31. [PMID: 24703506 DOI: 10.1016/j.jss.2014.02.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/29/2013] [Accepted: 02/27/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cell migration and adhesion are essential in intestinal epithelial wound healing and recovery from injury. Focal adhesion kinase (FAK) plays an important role in cell-extracellular matrix signal transduction. We have previously shown that heparin-binding EGF-like growth factor (HB-EGF) promotes intestinal epithelial cell (IEC) migration and adhesion in vitro. The present study was designed to determine whether FAK is involved in HB-EGF-induced IEC migration and adhesion. MATERIALS AND METHODS A scrape wound healing model of rat IECs was used to examine the effect of HB-EGF on FAK-dependent cell migration in vitro. Immunofluorescence and Western blot analyses were performed to evaluate the effect of HB-EGF on the expression of phosphorylated FAK (p-FAK). Cell adhesion assays were performed to determine the role of FAK in HB-EGF-induced cell adhesion on fibronectin (FN). RESULTS HB-EGF significantly increased healing after scrape wounding, an effect that was reversed in the presence of an FAK inhibitor 14 (both with P < 0.05). HB-EGF increased p-FAK expression and induced p-FAK redistribution and actin reorganization in migrating rat IECs. Cell adhesion and spreading on FN were significantly increased by HB-EGF (P < 0.05). FAK inhibitor 14 significantly inhibited both intrinsic and HB-EGF-induced cell adhesion and spreading on FN (both with P < 0.05). CONCLUSIONS FAK phosphorylation and FAK-mediated signal transduction play essential roles in HB-EGF-mediated IEC migration and adhesion.
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Affiliation(s)
- Yanwei Su
- Department of Cardiovascular and Respiratory Medicine, Wuhan Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Department of Pediatric Surgery, Nationwide Children's Hospital, Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio.
| | - Gail E Besner
- Department of Pediatric Surgery, Nationwide Children's Hospital, Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio.
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34
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Bosutti A, Qi J, Pennucci R, Bolton D, Matou S, Ali K, Tsai LH, Krupinski J, Petcu EB, Montaner J, Al Baradie R, Caccuri F, Caruso A, Alessandri G, Kumar S, Rodriguez C, Martinez-Gonzalez J, Slevin M. Targeting p35/Cdk5 signalling via CIP-peptide promotes angiogenesis in hypoxia. PLoS One 2013; 8:e75538. [PMID: 24098701 PMCID: PMC3787057 DOI: 10.1371/journal.pone.0075538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 08/19/2013] [Indexed: 01/19/2023] Open
Abstract
Cyclin-dependent kinase-5 (Cdk5) is over-expressed in both neurons and microvessels in hypoxic regions of stroke tissue and has a significant pathological role following hyper-phosphorylation leading to calpain-induced cell death. Here, we have identified a critical role of Cdk5 in cytoskeleton/focal dynamics, wherein its activator, p35, redistributes along actin microfilaments of spreading cells co-localising with p(Tyr15)Cdk5, talin/integrin beta-1 at the lamellipodia in polarising cells. Cdk5 inhibition (roscovitine) resulted in actin-cytoskeleton disorganisation, prevention of protein co-localization and inhibition of movement. Cells expressing Cdk5 (D144N) kinase mutant, were unable to spread, migrate and form tube-like structures or sprouts, while Cdk5 wild-type over-expression showed enhanced motility and angiogenesis in vitro, which was maintained during hypoxia. Gene microarray studies demonstrated myocyte enhancer factor (MEF2C) as a substrate for Cdk5-mediated angiogenesis in vitro. MEF2C showed nuclear co-immunoprecipitation with Cdk5 and almost complete inhibition of differentiation and sprout formation following siRNA knock-down. In hypoxia, insertion of Cdk5/p25-inhibitory peptide (CIP) vector preserved and enhanced in vitro angiogenesis. These results demonstrate the existence of critical and complementary signalling pathways through Cdk5 and p35, and through which coordination is a required factor for successful angiogenesis in sustained hypoxic condition.
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Affiliation(s)
- Alessandra Bosutti
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Jie Qi
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Roberta Pennucci
- Cell Adhesion Unit, Department of Neuroscience Dibit-Istituto Scientifico San Raffaele, Milano, Italy
| | | | - Sabine Matou
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Kamela Ali
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Li-Huei Tsai
- Howard Hughes Medical Institute, Massachusetts Institute of Technology Picower Institute for Learning and Memory, Cambridge, Massachusetts, United States of America
- Stanley Centre for Psychiatric Research, Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
| | - Jerzy Krupinski
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
- Hospital Universitari Mútua de Terrassa, Department of Neurology, Barcelona, Spain
| | - Eugene B. Petcu
- Griffith University School of Medicine, Gold Coast Campus, Griffith University, Southport, Australia
| | - Joan Montaner
- Neurovascular Research Laboratory, Vall De’Hebron University Hospital, Barcelona, Spain
| | - Raid Al Baradie
- College of Applied Medical Science, Almajmaah University, Almajmaah, Kingdom of Saudi Arabia
| | - Francesca Caccuri
- University of Brescia, Section of Microbiology, Department of Experimental and Applied Medicine, Medical School, Brescia, Italy
| | - Arnaldo Caruso
- University of Brescia, Section of Microbiology, Department of Experimental and Applied Medicine, Medical School, Brescia, Italy
| | - Giulio Alessandri
- Fondazione Istituto di Ricovero e Cura Carattere Scientifico Neurological Institute "Carlo Besta", Cellular Neurobiology Laboratory, Department of Cerebrovascular Diseases, Milan, Italy
| | - Shant Kumar
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
- Department of Pathological Sciences, Manchester University and Christie Hospital, Manchester, United Kingdom
| | - Cristina Rodriguez
- Centro de Investigacion Cardiovascular, Hospital de la Santa Creu i Sant, Pau, Barcelona, Spain
| | - Jose Martinez-Gonzalez
- Centro de Investigacion Cardiovascular, Hospital de la Santa Creu i Sant, Pau, Barcelona, Spain
| | - Mark Slevin
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
- Griffith University School of Medicine, Gold Coast Campus, Griffith University, Southport, Australia
- *E-mail:
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Seerapu HR, Borthakur S, Kong N, Agrawal S, Drazba J, Vasanji A, Fantin A, Ruhrberg C, Buck M, Horowitz A. The cytoplasmic domain of neuropilin-1 regulates focal adhesion turnover. FEBS Lett 2013; 587:3392-9. [PMID: 24021649 DOI: 10.1016/j.febslet.2013.08.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 08/26/2013] [Indexed: 01/13/2023]
Abstract
Though the vascular endothelial growth factor coreceptor neuropilin-1 (Nrp1) plays a critical role in vascular development, its precise function is not fully understood. We identified a group of novel binding partners of the cytoplasmic domain of Nrp1 that includes the focal adhesion regulator, Filamin A (FlnA). Endothelial cells (ECs) expressing a Nrp1 mutant devoid of the cytoplasmic domain (nrp1(cyto)(Δ/Δ)) migrated significantly slower in response to VEGF relative to the cells expressing wild-type Nrp1 (nrp1(+/+) cells). The rate of FA turnover in VEGF-treated nrp1(cyto)(Δ/Δ) ECs was an order of magnitude lower in comparison to nrp1(+/+) ECs, thus accounting for the slower migration rate of the nrp1(cyto)(Δ/Δ) ECs.
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Affiliation(s)
- Himabindu Reddy Seerapu
- Department of Molecular Cardiology, Lerner Research Institute, the Cleveland Clinic, Cleveland, OH 44195, United States
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p130Cas controls the susceptibility of cancer cells to TGF-β-induced growth inhibition. Biochem Biophys Res Commun 2013; 438:116-21. [DOI: 10.1016/j.bbrc.2013.07.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 07/10/2013] [Indexed: 11/18/2022]
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Kemeny SF, Cicalese S, Figueroa DS, Clyne AM. Glycated collagen and altered glucose increase endothelial cell adhesion strength. J Cell Physiol 2013; 228:1727-36. [PMID: 23280505 DOI: 10.1002/jcp.24313] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 12/10/2012] [Indexed: 01/08/2023]
Abstract
Cell adhesion strength is important to cell survival, proliferation, migration, and mechanotransduction, yet changes in endothelial cell adhesion strength have not yet been examined in diseases such as diabetes with high rates of cardiovascular complications. We therefore investigated porcine aortic endothelial cell adhesion strength on native and glycated collagen-coated substrates and in low, normal, and high glucose culture using a spinning disc apparatus. Adhesion strength increased by 30 dynes/cm(2) in cells on glycated collagen as compared to native collagen. Attachment studies revealed that cells use higher adhesion strength αv β3 integrins to bind to glycated collagen instead of the typical α2 β1 integrins used to bind to native collagen. Similarly, endothelial cells cultured in low and high glucose had 15 dynes/cm(2) higher adhesion strength than cells in normal glucose after 2 days. Increased adhesion strength was due to elevated VEGF release and intracellular PKC in low and high glucose cells, respectively. Thus glucose increased endothelial cell adhesion strength via different underlying mechanisms. These adhesion strength changes could contribute to diabetic vascular disease, including accelerated atherosclerosis and disordered angiogenesis.
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Affiliation(s)
- Steven Frank Kemeny
- Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, Pennsylvania, USA
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Su Z, Shi Y, Xiao Y, Sun M, Ping Q, Zong L, Li S, Niu J, Huang A, You W, Chen Y, Chen X, Fei J, Tian J. Effect of octreotide surface density on receptor-mediated endocytosis in vitro and anticancer efficacy of modified nanocarrier in vivo after optimization. Int J Pharm 2013; 447:281-92. [DOI: 10.1016/j.ijpharm.2013.01.068] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 01/14/2013] [Accepted: 01/30/2013] [Indexed: 02/07/2023]
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Abstract
In this review we summarize the current understanding of signal transduction downstream of vascular endothelial growth factor A (VEGFA) and its receptor VEGFR2, and the relationship between these signal transduction pathways and the hallmark responses of VEGFA, angiogenesis and vascular permeability. These physiological responses involve a number of effectors, including extracellular signal-regulated kinases (ERKs), Src, phosphoinositide 3 kinase (PI3K)/Akt, focal adhesion kinase (FAK), Rho family GTPases, endothelial NO and p38 mitogen-activated protein kinase (MAPK). Several of these factors are involved in the regulation of both angiogenesis and vascular permeability. Tumour angiogenesis primarily relies on VEGFA-driven responses, which to a large extent result in a dysfunctional vasculature. The reason for this remains unclear, although it appears that certain aspects of the VEGFA-stimulated angiogenic milieu (high level of microvascular density and permeability) promote tumour expansion. The high degree of redundancy and complexity of VEGFA-driven tumour angiogenesis may explain why tumours commonly develop resistance to anti-angiogenic therapy targeting VEGFA signal transduction.
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Affiliation(s)
- L Claesson-Welsh
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.
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Saraswati S, Agrawal SS. Brucine, an indole alkaloid from Strychnos nux-vomica attenuates VEGF-induced angiogenesis via inhibiting VEGFR2 signaling pathway in vitro and in vivo. Cancer Lett 2013; 332:83-93. [PMID: 23348691 DOI: 10.1016/j.canlet.2013.01.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/08/2013] [Accepted: 01/09/2013] [Indexed: 12/27/2022]
Abstract
In this study, we investigated the mechanism of brucine in tumor angiogenesis. We found that brucine inhibits VEGF-induced cell proliferation, chemotactic motility, and the formation of capillary-like structures in HUVECs in a dose-dependent manner. Brucine suppresses VEGF- induced p-VEGFR2 kinase activity and inhibits neovascularization in vivo. Brucine inhibits the downstream protein kinases of VEGFR2, including Src, FAK, ERK, AKT and mTOR. And further downregulates levels of VEGF, NO, IL-6, IL-8, TNF-α and IFN-γ in HUVECs. Taken together, our study suggests that brucine potently suppresses angiogenesis by targeting VEGFR2 activation and may be a viable drug candidate in anti-angiogenesis and anti-cancer therapies.
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Affiliation(s)
- Sarita Saraswati
- Genome Research Laboratory, Delhi Institute of Pharmaceutical Sciences and Research, Pushp Vihar Sec-3, MB Road, New Delhi 110 017, India.
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Barrett A, Pellet-Many C, Zachary IC, Evans IM, Frankel P. p130Cas: a key signalling node in health and disease. Cell Signal 2012; 25:766-77. [PMID: 23277200 DOI: 10.1016/j.cellsig.2012.12.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 12/21/2012] [Indexed: 01/08/2023]
Abstract
p130Cas/breast cancer anti-oestrogen resistance 1 (BCAR1) is a member of the Cas (Crk-associated substrate) family of adaptor proteins, which have emerged as key signalling nodes capable of interactions with multiple proteins, with important regulatory roles in normal and pathological cell function. The Cas family of proteins is characterised by the presence of multiple conserved motifs for protein-protein interactions, and by extensive tyrosine and serine phosphorylations. Recent studies show that p130Cas contributes to migration, cell cycle control and apoptosis. p130Cas is essential during early embryogenesis, with a critical role in cardiovascular development. Furthermore, p130Cas has been reported to be involved in the development and progression of several human cancers. p130Cas is able to perform roles in multiple processes due to its capacity to regulate a diverse array of signalling pathways, transducing signals from growth factor receptor tyrosine kinases, non-receptor tyrosine kinases, and integrins. In this review we summarise the current understanding of the structure, function, and regulation of p130Cas, and discuss the importance of p130Cas in both physiological and pathophysiological settings, with a focus on the cardiovascular system and cancer.
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Affiliation(s)
- Angela Barrett
- Centre for Cardiovascular Biology and Medicine, Division of Medicine, University College London, London WC1E 6JJ, United Kingdom.
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Giachini FRC, Carneiro FS, Lima VV, Carneiro ZN, Carvalho MHC, Fortes ZB, Webb RC, Tostes RC. Pyk2 mediates increased adrenergic contractile responses in arteries from DOCA-salt mice - VASOACTIVE PEPTIDE SYMPOSIUM. ACTA ACUST UNITED AC 2012; 2:431-8. [PMID: 19884968 DOI: 10.1016/j.jash.2008.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND The calcium-dependent proline-rich tyrosine kinase (Pyk2), a nonreceptor protein activated by tyrosine phosphorylation, links G protein-coupled receptors to vascular responses. We tested the hypothesis that enhanced vascular reactivity in DOCA-salt hypertensive mice are due to increased activation of Pyk2. METHODS AND RESULTS Aorta and small mesenteric arteries from DOCA-salt and uninephrectomized (UNI) male C57Bl/6 mice were used. Systolic blood pressure (mmHg) was higher in DOCA (126+/-3) vs. UNI (100+/-4) mice. Vascular responses to phenylephrine (1nM to 100muM) were greater both in aorta and small mesenteric arteries from DOCA-salt than UNI, but treatment with Tyrphostin A-9 (0.1muM, Pyk2 inhibitor) abolished the difference among the groups. Pyk2 levels, as well as phospho-Pyk2(Tyr402), paxillin and phospho-paxillin(Tyr118) were increased in DOCA-salt aorta. Incubation of vessels with Tyrphostin A-9 restored phosphorylation of Pyk2 and paxillin. CONCLUSION Increased activation of Pyk2 contributes to increased vascular contractile-responses in DOCA-salt mice.
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Hermann DM, ElAli A. The abluminal endothelial membrane in neurovascular remodeling in health and disease. Sci Signal 2012; 5:re4. [PMID: 22871611 DOI: 10.1126/scisignal.2002886] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
After brain injury, blood-brain barrier (BBB) integrity can be compromised as a consequence of the breakdown of cell-cell interactions in the neurovascular unit, resulting in the loss of the characteristic endothelial luminal-to-abluminal structure. During the process of restoration of the BBB and vascularization, the endothelial cells are continuously reshaped, with both the luminal and abluminal membranes serving as sites of signaling. Here, we focus on the bidirectional signaling processes that are rapidly initiated between endothelial and perivascular cells and occur in certain brain diseases or in response to injury. The goal of these processes is (i) the reemergence of endothelial cell polarity, (ii) the remodeling of extracellular matrix interactions, (iii) the realignment of pericytes and astrocytic endfeet with endothelial cells, and (iv) the restitution of a well-organized and stable BBB. This abluminal membrane exemplifies how the brain vasculature responds to stressors and may represent promising targets for therapeutic interventions of brain diseases.
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Affiliation(s)
- Dirk M Hermann
- Department of Neurology, University Hospital Essen, Hufelandstrasse 55, D-45122 Essen, Germany.
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Immunofluorescent visualisation of focal adhesion kinase in human skeletal muscle and its associated microvasculature. Histochem Cell Biol 2012; 138:617-26. [PMID: 22752263 DOI: 10.1007/s00418-012-0980-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2012] [Indexed: 10/28/2022]
Abstract
Within animal skeletal muscle, focal adhesion kinase (FAK) has been associated with load-dependent molecular and metabolic adaptation including the regulation of insulin sensitivity. This study aimed to generate the first visual images of the localisation of FAK within human skeletal muscle fibres and its associated microvasculature using widefield and confocal immunofluorescence microscopy. Percutaneous muscle biopsies, taken from five lean, active males, were frozen and 5-μm cryosections were incubated with FAK antibodies for visualisation in muscle fibres and the microvasculature. Anti-myosin heavy chain type I was used for fibre-type differentiation. Muscle sections were also incubated with anti-dihydropyridine receptor (DHPR) to investigate co-localisation of FAK with the t-tubules. FITC-conjugated Ulex europaeus Agglutinin I stained the endothelium of the capillaries, whilst anti-smooth muscle actin stained the vascular smooth muscle of arterioles. Fibre-type differences in the intensity of FAK immunofluorescence were determined with image analysis software. In transversely and longitudinally orientated fibres, FAK was localised at the sarcolemmal regions. In longitudinally orientated fibres, FAK staining also showed uniform striations across the fibre and co-staining with DHPR suggests FAK associates with the t-tubules. There was no fibre-type difference in sarcoplasmic FAK content. Within the capillary endothelium and arteriolar smooth muscle, FAK was distributed heterogeneously as clusters. This is the first study to visualise FAK in human skeletal muscle microvasculature and within the (sub)sarcolemmal and t-tubule regions using immunofluorescence microscopy. This technique will be an important tool for investigating the role of FAK in the intracellular signalling of human skeletal muscle and the endothelium of its associated microvasculature.
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Bryant PW, Zheng Q, Pumiglia KM. Focal adhesion kinase is a phospho-regulated repressor of Rac and proliferation in human endothelial cells. Biol Open 2012; 1:723-30. [PMID: 23213465 PMCID: PMC3507225 DOI: 10.1242/bio.20121008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 05/15/2012] [Indexed: 11/06/2022] Open
Abstract
Focal adhesion kinase (FAK) is critically positioned to integrate signals from the extracellular matrix and cellular adhesion. It is essential for normal vascular development and has been implicated in a wide range of cellular functions including the regulation of cell proliferation, migration, differentiation, and survival. It is currently being actively targeted therapeutically using different approaches. We have used human endothelial cells as a model system to compare the effects of inhibiting FAK through several different approaches including dominant negatives, kinase inhibitors and shRNA. We find that manipulations of FAK signaling that result in inhibition of FAK 397 phosphorylation inhibit proliferation and migration. However, abolition of FAK expression using stable (shRNA) or transient (siRNA) approaches does not interfere with these cellular functions. The ability to regulate cell proliferation by FAK manipulation is correlated with the activation status of Rac, an essential signal for the regulation of cyclin-dependent kinase inhibitors. The knockdown of FAK, while not affecting cellular proliferation or migration, dramatically interferes with vascular morphogenesis and survival, mirroring in vivo findings. We propose a novel model of FAK signaling whereby one of the multifunctional roles of FAK as a signaling protein includes FAK as a phospho-regulated repressor of Rac activation, with important implications on interpretation of research experiments and therapeutic development.
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Affiliation(s)
- Patrick W Bryant
- Cell Biology and Cancer Research, Albany Medical College , Albany, NY 12208 , USA
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Cao J, Chen Y, Fu J, Qian YW, Ren YB, Su B, Luo T, Dai RY, Huang L, Yan JJ, Wu MC, Yan YQ, Wang HY. High expression of proline-rich tyrosine kinase 2 is associated with poor survival of hepatocellular carcinoma via regulating phosphatidylinositol 3-kinase/AKT pathway. Ann Surg Oncol 2012; 20 Suppl 3:S312-23. [PMID: 22618716 DOI: 10.1245/s10434-012-2372-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND The peritumoral environment has been implicated to be important in the process of metastasis and recurrence in hepatocellular carcinoma (HCC). Our aims were to assess the prognostic value of proline-rich tyrosine kinase 2 (Pyk2) in HCC and investigate related molecular mechanism. METHODS Expression of Pyk2 was tested by immunohistochemistry in tissue microarrays containing 141 paired HCC samples. Correlation between Pyk2 and vascular endothelial growth factor (VEGF) expression in clinical samples was analyzed by Spearman rank correlation. Matrigel invasion, anchorage-independent growth assay and immunoblotting were performed to study the effect of Pyk2 on the invasion and progression of HCC cells and phosphoinositide 3-kinase (PI3K)/AKT pathway activation. RESULTS Higher Pyk2 density in both tumor and peritumor was associated with lower overall survival (P = 0.044; P = 0.041, respectively), serum AFP levels > 1,000 ng/ml (P = 0.013; P = 0.032, respectively) and postoperative distant metastasis (both P < 0.001). However, only higher peritumoral Pyk2 density was related to lower disease-free survival (P = 0.014) and vascular invasion (P = 0.035). A significant correlation between Pyk2 and VEGF density in tumor or peritumoral liver tissue was observed (r = 0. 3133, P = 0.0002; r = 0.5176, P < 0.0001, respectively). Immunoblotting showed that Pyk2 activated PI3K-AKT pathway to upregulate VEGF expression in HL-7702, SMMC-7721 and HepG2 cells. CONCLUSIONS High Pyk2, especially peritumoral Pyk2 was associated with poor survival, disease recurrence, and metastasis in HCC. PI3K-AKT pathway was involved in Pyk2-mediated VEGF expression during HCC progression and invasion.
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Affiliation(s)
- Jie Cao
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai, China
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Guerrero MS, Parsons JT, Bouton AH. Cas and NEDD9 Contribute to Tumor Progression through Dynamic Regulation of the Cytoskeleton. Genes Cancer 2012; 3:371-81. [PMID: 23226575 PMCID: PMC3513795 DOI: 10.1177/1947601912458585] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The Cas family proteins, p130(Cas) (Cas) and NEDD9, are adaptor molecules that regulate cytoskeletal dynamics to promote multiple cellular processes, including migration, invasion, proliferation, and survival. Because these functions are also critical for tumor initiation, growth, and metastasis, Cas and NEDD9 are well positioned to contribute to these oncogenic processes. Indeed, mouse models of cancer show that these proteins function during multiple stages of disease progression. Furthermore, in many human cancers, high expression of Cas and NEDD9 is associated with advanced stage disease and is predictive of poor outcome. This review explores the contribution of Cas and NEDD9 during cellular transformation and neoplastic growth, tumor progression, metastasis, and the development of therapeutic resistance. Given these roles, Cas and NEDD9 may prove to be viable candidates for use as biomarkers and therapeutic targets.
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Chen XL, Nam JO, Jean C, Lawson C, Walsh CT, Goka E, Lim ST, Tomar A, Tancioni I, Uryu S, Guan JL, Acevedo LM, Weis SM, Cheresh DA, Schlaepfer DD. VEGF-induced vascular permeability is mediated by FAK. Dev Cell 2012; 22:146-57. [PMID: 22264731 DOI: 10.1016/j.devcel.2011.11.002] [Citation(s) in RCA: 253] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 10/04/2011] [Accepted: 11/07/2011] [Indexed: 11/28/2022]
Abstract
Endothelial cells (ECs) form cell-cell adhesive junctional structures maintaining vascular integrity. This barrier is dynamically regulated by vascular endothelial growth factor (VEGF) receptor signaling. We created an inducible knockin mouse model to study the contribution of the integrin-associated focal adhesion tyrosine kinase (FAK) signaling on vascular function. Here we show that genetic or pharmacological FAK inhibition in ECs prevents VEGF-stimulated permeability downstream of VEGF receptor or Src tyrosine kinase activation in vivo. VEGF promotes tension-independent FAK activation, rapid FAK localization to cell-cell junctions, binding of the FAK FERM domain to the vascular endothelial cadherin (VE-cadherin) cytoplasmic tail, and direct FAK phosphorylation of β-catenin at tyrosine-142 (Y142) facilitating VE-cadherin-β-catenin dissociation and EC junctional breakdown. Kinase inhibited FAK is in a closed conformation that prevents VE-cadherin association and limits VEGF-stimulated β-catenin Y142 phosphorylation. Our studies establish a role for FAK as an essential signaling switch within ECs regulating adherens junction dynamics.
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Affiliation(s)
- Xiao Lei Chen
- Department of Reproductive Medicine, Moores UCSD Cancer Center, La Jolla, CA 92093, USA
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Huang SW, Lien JC, Kuo SC, Huang TF. Antiangiogenic mechanisms of PJ-8, a novel inhibitor of vascular endothelial growth factor receptor signaling. Carcinogenesis 2012; 33:1022-30. [DOI: 10.1093/carcin/bgs127] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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50
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Bacakova L, Filova E, Parizek M, Ruml T, Svorcik V. Modulation of cell adhesion, proliferation and differentiation on materials designed for body implants. Biotechnol Adv 2011; 29:739-67. [PMID: 21821113 DOI: 10.1016/j.biotechadv.2011.06.004] [Citation(s) in RCA: 565] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 05/30/2011] [Accepted: 06/09/2011] [Indexed: 12/12/2022]
Affiliation(s)
- Lucie Bacakova
- Department of Growth and Differentiation of Cell Populations, Institute of Physiology, Academy of Sciences of the Czech Republic, Videnska 1082, 14220 Prague 4-Krc, Czech Republic.
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