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Brückner DB, Broedersz CP. Learning dynamical models of single and collective cell migration: a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2024; 87:056601. [PMID: 38518358 DOI: 10.1088/1361-6633/ad36d2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
Single and collective cell migration are fundamental processes critical for physiological phenomena ranging from embryonic development and immune response to wound healing and cancer metastasis. To understand cell migration from a physical perspective, a broad variety of models for the underlying physical mechanisms that govern cell motility have been developed. A key challenge in the development of such models is how to connect them to experimental observations, which often exhibit complex stochastic behaviours. In this review, we discuss recent advances in data-driven theoretical approaches that directly connect with experimental data to infer dynamical models of stochastic cell migration. Leveraging advances in nanofabrication, image analysis, and tracking technology, experimental studies now provide unprecedented large datasets on cellular dynamics. In parallel, theoretical efforts have been directed towards integrating such datasets into physical models from the single cell to the tissue scale with the aim of conceptualising the emergent behaviour of cells. We first review how this inference problem has been addressed in both freely migrating and confined cells. Next, we discuss why these dynamics typically take the form of underdamped stochastic equations of motion, and how such equations can be inferred from data. We then review applications of data-driven inference and machine learning approaches to heterogeneity in cell behaviour, subcellular degrees of freedom, and to the collective dynamics of multicellular systems. Across these applications, we emphasise how data-driven methods can be integrated with physical active matter models of migrating cells, and help reveal how underlying molecular mechanisms control cell behaviour. Together, these data-driven approaches are a promising avenue for building physical models of cell migration directly from experimental data, and for providing conceptual links between different length-scales of description.
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Affiliation(s)
- David B Brückner
- Institute of Science and Technology Austria, Am Campus 1, 3400 Klosterneuburg, Austria
| | - Chase P Broedersz
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
- Arnold Sommerfeld Center for Theoretical Physics and Center for NanoScience, Department of Physics, Ludwig-Maximilian-University Munich, Theresienstr. 37, D-80333 Munich, Germany
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2
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Woo SH, Mo YJ, Lee YI, Park JH, Hwang D, Park TJ, Kang HY, Park SC, Lee YS. ANT2 Accelerates Cutaneous Wound Healing in Aged Skin by Regulating Energy Homeostasis and Inflammation. J Invest Dermatol 2023; 143:2295-2310.e17. [PMID: 37211200 DOI: 10.1016/j.jid.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 04/26/2023] [Accepted: 05/05/2023] [Indexed: 05/23/2023]
Abstract
An effective healing response is critical to healthy aging. In particular, energy homeostasis has become increasingly recognized as a factor in effective skin regeneration. ANT2 is a mediator of adenosine triphosphate import into mitochondria for energy homeostasis. Although energy homeostasis and mitochondrial integrity are critical for wound healing, the role played by ANT2 in the repair process had not been elucidated to date. In our study, we found that ANT2 expression decreased in aged skin and cellular senescence. Interestingly, overexpression of ANT2 in aged mouse skin accelerated the healing of full-thickness cutaneous wounds. In addition, upregulation of ANT2 in replicative senescent human diploid dermal fibroblasts induced their proliferation and migration, which are critical processes in wound healing. Regarding energy homeostasis, ANT2 overexpression increased the adenosine triphosphate production rate by activating glycolysis and induced mitophagy. Notably, ANT2-mediated upregulation of HSPA6 in aged human diploid dermal fibroblasts downregulated proinflammatory genes that mediate cellular senescence and mitochondrial damage. This study shows a previously uncharacterized physiological role of ANT2 in skin wound healing by regulating cell proliferation, energy homeostasis, and inflammation. Thus, our study links energy metabolism to skin homeostasis and reports, to the best of our knowledge, a previously unreported genetic factor that enhances wound healing in an aging model.
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Affiliation(s)
- Seung-Hwa Woo
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Yun Jeong Mo
- Well Aging Research Center, Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Yun-Il Lee
- Well Aging Research Center, Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Ji Hwan Park
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Daehee Hwang
- Department of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Tae Jun Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Institution of Inflamm-aging Translational Research Center, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hee Young Kang
- Institution of Inflamm-aging Translational Research Center, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Sang Chul Park
- The Future Life & Society Research Center, Advanced Institute of Aging Science, Chonnam National University, Gwangju, Republic of Korea
| | - Young-Sam Lee
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea; Well Aging Research Center, Division of Biotechnology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea.
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3
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Pramotton FM, Cousin L, Roy T, Giampietro C, Cecchini M, Masciullo C, Ferrari A, Poulikakos D. Accelerated epithelial layer healing induced by tactile anisotropy in surface topography. SCIENCE ADVANCES 2023; 9:eadd1581. [PMID: 37027475 PMCID: PMC10081848 DOI: 10.1126/sciadv.add1581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 03/03/2023] [Indexed: 06/19/2023]
Abstract
Mammalian cells respond to tactile cues from topographic elements presented by the substrate. Among these, anisotropic features distributed in an ordered manner give directionality. In the extracellular matrix, this ordering is embedded in a noisy environment altering the contact guidance effect. To date, it is unclear how cells respond to topographical signals in a noisy environment. Here, using rationally designed substrates, we report morphotaxis, a guidance mechanism enabling fibroblasts and epithelial cells to move along gradients of topographic order distortion. Isolated cells and cell ensembles perform morphotaxis in response to gradients of different strength and directionality, with mature epithelia integrating variations of topographic order over hundreds of micrometers. The level of topographic order controls cell cycle progression, locally delaying or promoting cell proliferation. In mature epithelia, the combination of morphotaxis and noise-dependent distributed proliferation provides a strategy to enhance wound healing as confirmed by a mathematical model capturing key elements of the process.
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Affiliation(s)
- Francesca Michela Pramotton
- Experimental Continuum Mechanics Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich 8092, Switzerland
- EMPA, Swiss Federal Laboratories for Material Science and Technologies, Überlandstrasse 129, Dübendorf 8600, Switzerland
| | - Lucien Cousin
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Tamal Roy
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, Zurich CH-8092, Switzerland
| | - Costanza Giampietro
- Experimental Continuum Mechanics Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich 8092, Switzerland
- EMPA, Swiss Federal Laboratories for Material Science and Technologies, Überlandstrasse 129, Dübendorf 8600, Switzerland
| | - Marco Cecchini
- NEST, Istituto Nanoscienze CNR and Scuola Normale Superiore, Pisa 56127, Italy
| | - Cecilia Masciullo
- NEST, Istituto Nanoscienze CNR and Scuola Normale Superiore, Pisa 56127, Italy
| | - Aldo Ferrari
- EMPA, Swiss Federal Laboratories for Material Science and Technologies, Überlandstrasse 129, Dübendorf 8600, Switzerland
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, Zurich CH-8092, Switzerland
| | - Dimos Poulikakos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, Zurich CH-8092, Switzerland
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4
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Regulatory mechanism of icariin in cardiovascular and neurological diseases. Biomed Pharmacother 2023; 158:114156. [PMID: 36584431 DOI: 10.1016/j.biopha.2022.114156] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
Cardiovascular diseases (CVDs) and neurological diseases are widespread diseases with substantial rates of morbidity and mortality around the world. For the past few years, the preventive effects of Chinese herbal medicine on CVDs and neurological diseases have attracted a great deal of attention. Icariin (ICA), the main constituent of Epimedii Herba, is a flavonoid. It has been shown to provide neuroprotection, anti-tumor, anti-osteoporosis, and cardiovascular protection. The endothelial protection, anti-inflammatory, hypolipidemic, antioxidative stress, and anti-apoptosis properties of ICA can help stop the progression of CVDs and neurological diseases. Therefore, our review summarized the known mechanisms and related studies of ICA in the prevention and treatment of cardio-cerebrovascular diseases (CCVDs), to better understand its therapeutic potential.
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Messenger DA, Wheeler GE, Liu X, Bortz DM. Learning anisotropic interaction rules from individual trajectories in a heterogeneous cellular population. J R Soc Interface 2022; 19:20220412. [PMCID: PMC9554727 DOI: 10.1098/rsif.2022.0412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Interacting particle system (IPS) models have proven to be highly successful for describing the spatial movement of organisms. However, it is challenging to infer the interaction rules directly from data. In the field of equation discovery, the weak-form sparse identification of nonlinear dynamics (WSINDy) methodology has been shown to be computationally efficient for identifying the governing equations of complex systems from noisy data. Motivated by the success of IPS models to describe the spatial movement of organisms, we develop WSINDy for the second-order IPS to learn equations for communities of cells. Our approach learns the directional interaction rules for each individual cell that in aggregate govern the dynamics of a heterogeneous population of migrating cells. To sort a cell according to the active classes present in its model, we also develop a novel ad hoc classification scheme (which accounts for the fact that some cells do not have enough evidence to accurately infer a model). Aggregated models are then constructed hierarchically to simultaneously identify different species of cells present in the population and determine best-fit models for each species. We demonstrate the efficiency and proficiency of the method on several test scenarios, motivated by common cell migration experiments.
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Affiliation(s)
- Daniel A. Messenger
- Department of Applied Mathematics, University of Colorado, Boulder, CO 80309-0526, USA
| | - Graycen E. Wheeler
- Department of Biochemistry, University of Colorado, Boulder, CO 80309-0526, USA
| | - Xuedong Liu
- Department of Biochemistry, University of Colorado, Boulder, CO 80309-0526, USA
| | - David M. Bortz
- Department of Applied Mathematics, University of Colorado, Boulder, CO 80309-0526, USA
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6
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Dihydrotanshinone I Enhances Cell Adhesion and Inhibits Cell Migration in Osteosarcoma U-2 OS Cells through CD44 and Chemokine Signaling. Molecules 2022; 27:molecules27123714. [PMID: 35744840 PMCID: PMC9231138 DOI: 10.3390/molecules27123714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 12/10/2022] Open
Abstract
In the screening of novel natural products against cancer using an in vitro cancer cell model, we recently found that tanshinones from a traditional Chinese medicine, the rhizome of Salvia miltiorrhiza Bunge (Danshen), had potent effects on cell proliferation and migration. Especially for human osteosarcoma U−2 OS cells, tanshinones significantly enhanced the cell adherence, implying a possible role in cell adhesion and cell migration inhibition. In this work, therefore, we aimed to provide a new insight into the possible molecule mechanisms of dihydrotanshinone I, which had the strongest effects on cell adhesion among several candidate tanshinones. RNA−sequencing-based transcriptome analysis and several biochemical experiments indicated that there were comprehensive signals involved in dihydrotanshinone I-treated U−2 OS cells, such as cell cycle, DNA replication, thermogenesis, tight junction, oxidative phosphorylation, adherens junction, and focal adhesion. First, dihydrotanshinone I could potently inhibit cell proliferation and induce cell cycle arrest in the G0/G1 phase by downregulating the expression of CDK4, CDK2, cyclin D1, and cyclin E1 and upregulating the expression of p21. Second, it could significantly enhance cell adhesion on cell plates and inhibit cell migration, involving the hyaluronan CD44−mediated CXCL8–PI3K/AKT–FOXO1, IL6–STAT3–P53, and EMT signaling pathways. Thus, the increased expression of CD44 and lengthened protrusions around the cell yielded a significant increase in cell adhesion. In summary, these results suggest that dihydrotanshinone I might be an interesting molecular therapy for enhancing human osteosarcoma U−2 OS cell adhesion and inhibiting cell migration and proliferation.
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7
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Shin MJ, Park JY, Lee DH, Khang D. Stem Cell Mimicking Nanoencapsulation for Targeting Arthritis. Int J Nanomedicine 2022; 16:8485-8507. [PMID: 35002240 PMCID: PMC8725870 DOI: 10.2147/ijn.s334298] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 12/05/2021] [Indexed: 12/12/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are considered a promising regenerative therapy due to their ability to migrate toward damaged tissues. The homing ability of MSCs is unique compared with that of non-migrating cells and MSCs are considered promising therapeutic vectors for targeting major cells in many pathophysiological sites. MSCs have many advantages in the treatment of malignant diseases, particularly rheumatoid arthritis (RA). RA is a representative autoimmune disease that primarily affects joints, and secreted chemokines in the joints are well recognized by MSCs following their migration to the joints. Furthermore, MSCs can regulate the inflammatory process and repair damaged cells in the joints. However, the functionality and migration ability of MSCs injected in vivo still show insufficient. The targeting ability and migration efficiency of MSCs can be enhanced by genetic engineering or modification, eg, overexpressing chemokine receptors or migration-related genes, thus maximizing their therapeutic effect. However, there are concerns about genetic changes due to the increased probability of oncogenesis resulting from genome integration of the viral vector, and thus, clinical application is limited. Furthermore, it is suspected that administering MSCs can promote tumor growth and metastasis in xenograft and orthotopic models. For this reason, MSC mimicking nanoencapsulations are an alternative strategy that does not involve using MSCs or bioengineered MSCs. MSC mimicking nanoencapsulations consist of MSC membrane-coated nanoparticles, MSC-derived exosomes and artificial ectosomes, and MSC membrane-fused liposomes with natural or genetically engineered MSC membranes. MSC mimicking nanoencapsulations not only retain the targeting ability of MSCs but also have many advantages in terms of targeted drug delivery. Specifically, MSC mimicking nanoencapsulations are capable of encapsulating drugs with various components, including chemotherapeutic agents, nucleic acids, and proteins. Furthermore, there are fewer concerns over safety issues on MSC mimicking nanoencapsulations associated with mutagenesis even when using genetically engineered MSCs, because MSC mimicking nanoencapsulations use only the membrane fraction of MSCs. Genetic engineering is a promising route in clinical settings, where nano-encapsulated technology strategies are combined. In this review, the mechanism underlying MSC homing and the advantages of MSC mimicking nanoencapsulations are discussed. In addition, genetic engineering of MSCs and MSC mimicking nanoencapsulation is described as a promising strategy for the treatment of immune-related diseases.
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Affiliation(s)
- Min Jun Shin
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, 21999, South Korea.,Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea
| | - Jun Young Park
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, 21999, South Korea.,Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea
| | - Dae Ho Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, 21999, South Korea.,Department of Internal Medicine, Gachon University College of Medicine, Incheon, 21999, South Korea
| | - Dongwoo Khang
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, 21999, South Korea.,Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 21999, South Korea.,Department of Physiology, School of Medicine, Gachon University, Incheon, 21999, South Korea
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8
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Zeinali M, Abbaspour-Ravasjani S, Soltanfam T, Paiva-Santos AC, Babaei H, Veiga F, Hamishehkar H. Prevention of UV-induced skin cancer in mice by gamma oryzanol-loaded nanoethosomes. Life Sci 2021; 283:119759. [PMID: 34171381 DOI: 10.1016/j.lfs.2021.119759] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 01/05/2023]
Abstract
AIMS Skin cancer is the most widespread cancer worldwide, mainly caused by exposure to ultraviolet radiation (UV) in sunlight. Utilizing topical preventive agents in routinely daily used cosmetics may prevent UV-related skin damages and skin cancers. γ-Oryzanol (GO) is a natural component derived from rice bran oil, with potential antioxidant and skin anti-aging properties. MAIN METHODS We biologically thorough studied the antioxidant and anticancer effects of GO in vitro to found the effective signaling pathways, then evaluated the sun protection factor of prepared formulation, and finally investigated the long-term preventive effects of GO-loaded nanoethosomes (GO-NEs) against UVB-induced skin cancer in mice. KEY FINDINGS GO-NEs could effectively prevent UVB-induced skin cancer. SIGNIFICANCE Our results suggest that GO-NEs could be utilized as an innovative ingredient in cosmetics.
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Affiliation(s)
- Mahdi Zeinali
- Biotechnology Research Center, Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | | | - Tannaz Soltanfam
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Research and Development Unit, Daana Pharma. Co. Tabriz, Iran.
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal.
| | - Hossein Babaei
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Francisco Veiga
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal.
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Liu S, Nie Y, Zhang Q, Zhu Y, Li X, Han D. Adhesion Anisotropy Substrate with Janus Micropillar Arrays Guides Cell Polarized Migration and Division Cycle. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sidi Liu
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yifeng Nie
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Qiang Zhang
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yuting Zhu
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xiang Li
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Dong Han
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
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10
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Liu S, Nie Y, Zhang Q, Zhu Y, Li X, Han D. Adhesion Anisotropy Substrate with Janus Micropillar Arrays Guides Cell Polarized Migration and Division Cycle. Angew Chem Int Ed Engl 2019; 58:4308-4312. [DOI: 10.1002/anie.201814579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Sidi Liu
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yifeng Nie
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Qiang Zhang
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yuting Zhu
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xiang Li
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Dong Han
- CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 P. R. China
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11
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Giménez-Bastida JA, Laparra-Llopis JM, Baczek N, Zielinski H. Buckwheat and buckwheat enriched products exert an anti-inflammatory effect on the myofibroblasts of colon CCD-18Co. Food Funct 2018; 9:3387-3397. [PMID: 29870039 PMCID: PMC6597957 DOI: 10.1039/c8fo00193f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Buckwheat (BW) constitutes a good source of bioactive components that show anti-inflammatory effects in vitro and in vivo. The use of functional foods in the prevention and treatment of inflammatory bowel diseases (IBDs) has aroused increasing interest. This study investigates the effect of in vitro digested BW and BW-enriched products (BW-enriched wheat breads, roasted BW groats -fermented and non-fermented-, and BW sprouts) on colon myofibroblasts, the cells involved in the regulation of inflammatory response in the intestine. The cells were treated with different digested-BW products, alone or together with TNF-α (20 ng mL-1), and the effects on the cell migration, mitochondrial membrane potential and cell cycle, processes altered during intestinal inflammation, were investigated. A significant reduction in TNF-α-induced migration (25.5%, p < 0.05) and attenuation of the TNF-α-altered cell cycle (p < 0.05) was observed in myofibroblasts treated with BW-enriched white wheat bread. These results contribute to extend the beneficial effects derived from BW bioactive compounds, and suggest that BW consumption can exert beneficial effects on IBDs.
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Affiliation(s)
- J A Giménez-Bastida
- Department of Pharmacology. Vanderbilt University School of Medicine, RRB 514, 23rd Ave. S. at Pierce, Nashville, TN 37232-6602, USA
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12
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Luo X, Liu J, Zhou H, Chen L. Apelin/APJ system: A critical regulator of vascular smooth muscle cell. J Cell Physiol 2018; 233:5180-5188. [PMID: 29215755 DOI: 10.1002/jcp.26339] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 11/28/2017] [Indexed: 12/28/2022]
Abstract
APJ, an orphan G protein-coupled receptor, is first identified through homology cloning in 1993. Apelin is endogenous ligand of APJ extracted from bovine stomach tissue in 1998. Apelin/APJ system is widely expressed in many kinds of cells such as endothelial cells, cardiomyocytes, especially vascular smooth muscle cell. Vascular smooth muscle cell (VSMC), an integral part of the vascular wall, takes part in many normal physiological processes. Our experiment firstly finds that apelin/APJ system enhances VSMC proliferation by ERK1/2-cyclin D1 signal pathway. Accumulating studies also show that apelin/APJ system plays a pivotal role in mediating the function of VSMC. In this paper, we review the exact role of apelin/APJ system in VSMC, including induction of proliferation and migration, enhance of contraction and relaxation, inhibition of calcification. Furthermore, we discuss the role of apelin/APJ system in vascular diseases, such as atherosclerosis, hypertension, and chronic kidney disease (CKD) from the point of VSMC. Above all, apelin/APJ system is a promising target for managing vascular disease.
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Affiliation(s)
- Xuling Luo
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
| | - Jiaqi Liu
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
| | - Hong Zhou
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
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13
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Yang Y, Chen L, Gu J, Zhang H, Yuan J, Lian Q, Lv G, Wang S, Wu Y, Yang YCT, Wang D, Liu Y, Tang J, Luo G, Li Y, Hu L, Sun X, Wang D, Guo M, Xi Q, Xi J, Wang H, Zhang MQ, Lu ZJ. Recurrently deregulated lncRNAs in hepatocellular carcinoma. Nat Commun 2017; 8:14421. [PMID: 28194035 PMCID: PMC5316832 DOI: 10.1038/ncomms14421] [Citation(s) in RCA: 214] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 12/28/2016] [Indexed: 12/19/2022] Open
Abstract
Hepatocellular carcinoma (HCC) cells often invade the portal venous system and subsequently develop into portal vein tumour thrombosis (PVTT). Long noncoding RNAs (lncRNAs) have been associated with HCC, but a comprehensive analysis of their specific association with HCC metastasis has not been conducted. Here, by analysing 60 clinical samples' RNA-seq data from 20 HCC patients, we have identified and characterized 8,603 candidate lncRNAs. The expression patterns of 917 recurrently deregulated lncRNAs are correlated with clinical data in a TCGA cohort and published liver cancer data. Matched array data from the 60 samples show that copy number variations (CNVs) and alterations in DNA methylation contribute to the observed recurrent deregulation of 235 lncRNAs. Many recurrently deregulated lncRNAs are enriched in co-expressed clusters of genes related to cell adhesion, immune response and metabolic processes. Candidate lncRNAs related to metastasis, such as HAND2-AS1, were further validated using RNAi-based loss-of-function assays. Thus, we provide a valuable resource of functional lncRNAs and biomarkers associated with HCC tumorigenesis and metastasis. Long noncoding-RNAs have been linked to hepatocellular carcinoma (HCC) and some can be used as prognostic markers. Here the authors, by analysing RNA-seq in 60 clinical samples from 20 patients, provide a resource of functional lncRNAs and biomarkers associated with HCC tumorigenesis and metastasis.
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Affiliation(s)
- Yang Yang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Lei Chen
- International Co-operation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China.,National Center for Liver Cancer, Shanghai 201805, China
| | - Jin Gu
- Bioinformatics Division, TNLIST and Department of Automation, Tsinghua University, Beijing 100084, China
| | - Hanshuo Zhang
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Jiapei Yuan
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Qiuyu Lian
- Bioinformatics Division, TNLIST and Department of Automation, Tsinghua University, Beijing 100084, China
| | - Guishuai Lv
- International Co-operation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China
| | - Siqi Wang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yang Wu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yu-Cheng T Yang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Dongfang Wang
- Bioinformatics Division, TNLIST and Department of Automation, Tsinghua University, Beijing 100084, China
| | - Yang Liu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jing Tang
- Department of Neurosurgery, Wuhan General Hospital of Guangzhou Command, Wuhan Hubei 430070, China
| | - Guijuan Luo
- International Co-operation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China
| | - Yang Li
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Long Hu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xinbao Sun
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Dong Wang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Mingzhou Guo
- Department of Gastroenterology &Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing 100853, China
| | - Qiaoran Xi
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jianzhong Xi
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Hongyang Wang
- International Co-operation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China.,National Center for Liver Cancer, Shanghai 201805, China
| | - Michael Q Zhang
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.,Bioinformatics Division, TNLIST and Department of Automation, Tsinghua University, Beijing 100084, China.,Department of Biological Sciences, Center for Systems Biology, The University of Texas at Dallas, 800 West Campbell Road, RL11 Richardson, Texas 75080-3021, USA
| | - Zhi John Lu
- MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, Center for Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
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MiR 3180-5p promotes proliferation in human bladder smooth muscle cell by targeting PODN under hydrodynamic pressure. Sci Rep 2016; 6:33042. [PMID: 27608612 PMCID: PMC5017130 DOI: 10.1038/srep33042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 08/18/2016] [Indexed: 02/05/2023] Open
Abstract
Human bladder smooth muscle cells (HBSMCs) were subjected to pressure cycles of up to 200 cm H2O to a pressure of 0 cm H2O for 24 hours. The total RNA extracted from each group was subjected to microarray analysis. miR-3180-5p emerged as the most overexpressed of all the differentially expressed microRNAs, and this finding was validated by PCR. We then used CCK-8 to quantify cell proliferation after liposome-mediated transfection. Subsequently, we investigated the change in PODN and its downstream signaling proteins, including cyclin-dependent kinase 2 (cdk2) and p21. In addition, flow cytometry was performed to quantify cell-cycle distribution. The results show that miR-3180-5p, the microRNA that was most overexpressed in response to HP, reduced the expression of PODN and podocan (p = 0.004 and p = 0.041, respectively). Silencing of PODN via miR-3180-5p overexpression revealed a significant promotion of cell proliferation increased in the CCK-8 experiment, p = 0.00077). This cell proliferation was accompanied by an increase in cdk2 expression (p = 0.00193) and a decrease in p21 expression (p = 0.0095). The percentage of cells in (S + G2/M) improved after transfection (p = 0.002). It was apparent that HP upregulates miR-3180-5p, which inhibits the expression of PODN and promotes HBSMC proliferation via the cdk2 signaling pathway.
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15
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Kim SH, Kim EC, Kim WJ, Lee MH, Kim SY, Kim TJ. Coptis japonica Makino extract suppresses angiogenesis through regulation of cell cycle-related proteins. Biosci Biotechnol Biochem 2016; 80:1095-106. [DOI: 10.1080/09168451.2016.1148574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Angiogenesis, neovascularization from pre-existing vessels, is a key step in tumor growth and metastasis, and anti-angiogenic agents that can interfere with these essential steps of cancer development are a promising strategy for human cancer treatment. In this study, we characterized the anti-angiogenic effects of Coptis japonica Makino extract (CJME) and its mechanism of action. CJME significantly inhibited the proliferation, migration, and invasion of vascular endothelial growth factor (VEGF)-stimulated HUVECs. Furthermore, CJME suppressed VEGF-induced tube formation in vitro and VEGF-induced microvessel sprouting ex vivo. According to our study, CJME blocked VEGF-induced cell cycle transition in G1. CJME decreased expression of cell cycle-regulated proteins, including Cyclin D, Cyclin E, Cdk2, and Cdk4 in response to VEGF. Taken together, the results of our study indicate that CJME suppresses VEGF-induced angiogenic events such as proliferation, migration, and tube formation via cell cycle arrest in G1.
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Affiliation(s)
- Seo Ho Kim
- Yonsei-Fraunhofer Medical Device Lab, Division of Biological Science and Technology, College of Science and Technology, Yonsei University, Wonju, Korea
| | - Eok-Cheon Kim
- Yonsei-Fraunhofer Medical Device Lab, Division of Biological Science and Technology, College of Science and Technology, Yonsei University, Wonju, Korea
| | - Wan-Joong Kim
- Yonsei-Fraunhofer Medical Device Lab, Division of Biological Science and Technology, College of Science and Technology, Yonsei University, Wonju, Korea
| | - Myung-Hun Lee
- Yonsei-Fraunhofer Medical Device Lab, Division of Biological Science and Technology, College of Science and Technology, Yonsei University, Wonju, Korea
| | - Sun-Young Kim
- Yonsei-Fraunhofer Medical Device Lab, Division of Biological Science and Technology, College of Science and Technology, Yonsei University, Wonju, Korea
| | - Tack-Joong Kim
- Yonsei-Fraunhofer Medical Device Lab, Division of Biological Science and Technology, College of Science and Technology, Yonsei University, Wonju, Korea
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16
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HU YANWU, LIU KAI, YAN MENGTONG, ZHANG YANG, WANG YADI, REN LIQUN. Icariin inhibits oxidized low-density lipoprotein-induced proliferation of vascular smooth muscle cells by suppressing activation of extracellular signal-regulated kinase 1/2 and expression of proliferating cell nuclear antigen. Mol Med Rep 2016; 13:2899-903. [DOI: 10.3892/mmr.2016.4813] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 01/06/2016] [Indexed: 11/05/2022] Open
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17
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Liu X, Pan L, Liang J, Li J, Wu S. Cryptotanshinone inhibits proliferation and induces apoptosis via mitochondria-derived reactive oxygen species involving FOXO1 in estrogen receptor-negative breast cancer Bcap37 cells. RSC Adv 2016. [DOI: 10.1039/c5ra22523j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cryptotanshinone inhibits proliferation and induces apoptosis of the estrogen receptor-negative breast cancer Bcap37 cells via FOXO1 inhibition and ROS-mediated PI3K/AKT/mTOR signaling pathways.
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Affiliation(s)
- Xiaoman Liu
- Research Center of Siyuan Natural Pharmacy and Biotoxicology
- College of Life Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Lili Pan
- Research Center of Siyuan Natural Pharmacy and Biotoxicology
- College of Life Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Junling Liang
- Research Center of Siyuan Natural Pharmacy and Biotoxicology
- College of Life Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Jinhui Li
- Institute of Agrobiology and Environmental Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Shihua Wu
- Research Center of Siyuan Natural Pharmacy and Biotoxicology
- College of Life Sciences
- Zhejiang University
- Hangzhou 310058
- China
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18
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Huang CH, Ciou JS, Chen ST, Kok VC, Chung Y, Tsai JJP, Kurubanjerdjit N, Huang CYF, Ng KL. Identify potential drugs for cardiovascular diseases caused by stress-induced genes in vascular smooth muscle cells. PeerJ 2016; 4:e2478. [PMID: 27703845 PMCID: PMC5045879 DOI: 10.7717/peerj.2478] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/23/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Abnormal proliferation of vascular smooth muscle cells (VSMC) is a major cause of cardiovascular diseases (CVDs). Many studies suggest that vascular injury triggers VSMC dedifferentiation, which results in VSMC changes from a contractile to a synthetic phenotype; however, the underlying molecular mechanisms are still unclear. METHODS In this study, we examined how VSMC responds under mechanical stress by using time-course microarray data. A three-phase study was proposed to investigate the stress-induced differentially expressed genes (DEGs) in VSMC. First, DEGs were identified by using the moderated t-statistics test. Second, more DEGs were inferred by using the Gaussian Graphical Model (GGM). Finally, the topological parameters-based method and cluster analysis approach were employed to predict the last batch of DEGs. To identify the potential drugs for vascular diseases involve VSMC proliferation, the drug-gene interaction database, Connectivity Map (cMap) was employed. Success of the predictions were determined using in-vitro data, i.e. MTT and clonogenic assay. RESULTS Based on the differential expression calculation, at least 23 DEGs were found, and the findings were qualified by previous studies on VSMC. The results of gene set enrichment analysis indicated that the most often found enriched biological processes are cell-cycle-related processes. Furthermore, more stress-induced genes, well supported by literature, were found by applying graph theory to the gene association network (GAN). Finally, we showed that by processing the cMap input queries with a cluster algorithm, we achieved a substantial increase in the number of potential drugs with experimental IC50 measurements. With this novel approach, we have not only successfully identified the DEGs, but also improved the DEGs prediction by performing the topological and cluster analysis. Moreover, the findings are remarkably validated and in line with the literature. Furthermore, the cMap and DrugBank resources were used to identify potential drugs and targeted genes for vascular diseases involve VSMC proliferation. Our findings are supported by in-vitro experimental IC50, binding activity data and clinical trials. CONCLUSION This study provides a systematic strategy to discover potential drugs and target genes, by which we hope to shed light on the treatments of VSMC proliferation associated diseases.
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Affiliation(s)
- Chien-Hung Huang
- Department of Computer Science and Information Engineering, National Formosa University, Yun-Lin, Taiwan
| | - Jin-Shuei Ciou
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Shun-Tsung Chen
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Victor C. Kok
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
- Division of Medical Oncology, Kuang Tien General Hospital Cancer Center, Taichung, Taiwan
| | - Yi Chung
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Jeffrey J. P. Tsai
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | | | - Chi-Ying F. Huang
- Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Ka-Lok Ng
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
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Apamin inhibits PDGF-BB-induced vascular smooth muscle cell proliferation and migration through suppressions of activated Akt and Erk signaling pathway. Vascul Pharmacol 2015; 70:8-14. [PMID: 25737404 DOI: 10.1016/j.vph.2014.12.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 11/13/2014] [Accepted: 12/28/2014] [Indexed: 11/21/2022]
Abstract
The increased proliferation and migration of vascular smooth muscle cells (VSMC) are key process in the development of atherosclerosis lesions. Platelet-derived growth factor (PDGF) initiates a multitude of biological effects that contribute to VSMC proliferation and migration. Apamin, a component of bee venom, has been known to block the Ca(2+)-activated K(+) channels. However, the effects of apamin in the regulation PDGF-BB-induced VSMC proliferation and migration has not been identified. In this study, we investigate the inhibitory effect of apamin on PDGF-BB-induced VSMC proliferation and migration. Apamin suppressed the PDGF-BB-induced VSMC proliferation and migration with no apparent cytotoxic effect. In accordance with these findings, apamin induced the arrest of cell cycle progression at G0/G1 phase. Apamin also decreased the expressions of G0/G1 specific regulatory proteins including proliferating cell nuclear antigen (PCNA), cyclin D1, cyclin-dependent kinases (CDK) 4, cyclin E and CDK2, as well as increased the expression of p21(Cip1) in PDGF-BB-induced VSMC. Moreover, apamin inhibited PDGF-BB-induced phosphorylation of Akt and Erk1/2. These results suggest that apamin plays an important role in prevention of vascular proliferation and migration through the G0/G1 cell cycle arrest by PDGF signaling pathway. Thus, apamin may be a promising candidate for the therapy of atherosclerosis.
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Wertheimer C, Liegl R, Kernt M, Docheva D, Kampik A, Eibl-Lindner KH. EGFR-blockade with erlotinib reduces EGF and TGF-β2 expression and the actin-cytoskeleton which influences different aspects of cellular migration in lens epithelial cells. Curr Eye Res 2014; 39:1000-12. [PMID: 24588338 DOI: 10.3109/02713683.2014.888453] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
INTRODUCTION After cataract surgery, residual lens epithelial cells migrate and proliferate within the capsular bag resulting in posterior capsule opacification (PCO). The up-regulation of TGF-β2, EGF and FGF-2 has been identified as a key factor in PCO pathogenesis leading to actin fiber assembly and alterations in the migration pattern. In this in vitro study, the influence of Erlotinib as a selective EGFR inhibitor is investigated on the cellular features indicated, which might promote a future clinical application. METHODS Expression of EGF, FGF-2 and TGF-β2 was measured using RT-PCR and ELISA in human lens epithelial cells (HLEC). Computational data of an in vitro time lapse microscopy assay were used for statistical analysis of single cell migration with a particular focus on cell-cell interaction; cell velocity distribution; and displacement before, during and after mitosis. The effect of Erlotinib on the actin-cytoskeleton was evaluated using Alexa Fluor 488 Phalloidin and epifluorescence microscopy. RESULTS EGF and TGF-β2 mRNA expression and protein levels are reduced by Erlotinib, while FGF-2 expression remained stable. Overall fluidity of cell-cell interaction is less in the presence of Erlotinib compared to the control and the velocity distribution across all cells becomes less uniform within the cell cluster. After mitosis, HLEC move significantly faster without EGFR inhibition, which can be completely blocked by Erlotinib. Furthermore, Erlotinib diminishes the amount of actin stress fibers and the stress fiber diameter. CONCLUSION As a novel effect of Erlotinib on HLEC, we describe the down-regulation of EGF and TGF-β2 expression, both are crucial factors for PCO development. Cellular movement displays complex alterations under EGFR inhibition, which is partly explained by actin fiber depletion. These findings further underline the role of Erlotinib in pharmacologic PCO prophylaxis.
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Affiliation(s)
- C Wertheimer
- Cell- and Molecular Biology Laboratory, Department of Ophthalmology, Ludwig-Maximilians-University , Munich , Germany and
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21
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Bulgarelli A, Leite ACA, Dias AAM, Maranhão RC. Anti-Atherogenic Effects of Methotrexate Carried by a Lipid Nanoemulsion That Binds to LDL Receptors in Cholesterol-fed Rabbits. Cardiovasc Drugs Ther 2013; 27:531-9. [DOI: 10.1007/s10557-013-6488-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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22
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Kundumani-Sridharan V, Van Quyen D, Subramani J, Singh NK, Chin YE, Rao GN. Novel interactions between NFATc1 (Nuclear Factor of Activated T cells c1) and STAT-3 (Signal Transducer and Activator of Transcription-3) mediate G protein-coupled receptor agonist, thrombin-induced biphasic expression of cyclin D1, with first phase influencing cell migration and second phase directing cell proliferation. J Biol Chem 2012; 287:22463-82. [PMID: 22566696 DOI: 10.1074/jbc.m112.362996] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Thrombin, a G protein-coupled receptor agonist, induced a biphasic expression of cyclin D1 in primary vascular smooth muscle cells. Although both phases of cyclin D1 expression require binding of the newly identified cooperative complex, NFATc1·STAT-3, to its promoter, the second phase, which is more robust, depends on NFATc1-mediated recruitment of p300 onto the complex and the subsequent acetylation of STAT-3. In addition, STAT-3 is tyrosine-phosphorylated in a biphasic manner, and the late phase requires NFATc1-mediated p300-dependent acetylation. Furthermore, interference with acetylation of STAT-3 by overexpression of acetylation null STAT-3 mutant led to the loss of the late phase of cyclin D1 expression. EMSA analysis and reporter gene assays revealed that NFATc1·STAT-3 complex binding to the cyclin D1 promoter led to an enhanceosome formation and facilitated cyclin D1 expression. In the early phase of its expression, cyclin D1 is localized mostly in the cytoplasm and influenced cell migration. However, during the late and robust phase of its expression, cyclin D1 is translocated to the nucleus and directed cell proliferation. Together, these results demonstrate for the first time that the dual function of cyclin D1 in cell migration and proliferation is temperospatially separated by its biphasic expression, which is mediated by cooperative interactions between NFATc1 and STAT-3.
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Dahuang zhechong pill containing serum inhibited platelet-derived growth factor-stimulated vascular smooth muscle cells proliferation by inducing G1 arrest partly via suppressing protein kinase C α-extracellular regulated kinase 1/2 signaling pathway. Chin J Integr Med 2011; 18:371-7. [PMID: 21533776 DOI: 10.1007/s11655-011-0696-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To investigate effects of dahuang zhechong pill ( DHZCP) on the cell cycle and the related signal pathways in vascular smooth muscle cells (VSMCs) stimulated by platelet-derived growth factor (PDGF) with the method of serum pharmacology. METHODS DNA synthesis in VSMCs was examined by detecting 5'-bromo-2'-deoxyuridine incorporation with the immunocytochemical method. The cycle of VSMCs was evaluated with flow cytometry. Expressions of cyclin D1, p27, protein kinase Cα (PKCα), and phosphorylated extracellular signal regulated kinase 1/2 (ERK1/2) were quantified by Western blot method. RESULTS DHZCP containing serum significantly inhibited DNA synthesis of PDGF-stimulated VSMCs, arrested the cells in G G(1) phase, modulated the protein expressions of cyclin D D(1) and p27, and suppressed the activation of PKCα and ERK1/2. CONCLUSION DHZCP containing serum inhibits VSMCs proliferation via modulating the expressions of cell cycle proteins to arrest the cell in G G(1) phase, which is attributed to, at least in part, suppressing PKCα-ERK1/2 signaling in VSMCs.
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Segev A, Nili N, Qiang B, Osherov AB, Giordano FJ, Jaffe R, Gauldie J, Sparkes JD, Fraser AR, Ladouceur-Wodzak M, Butany J, Strauss BH. Inhibition of intimal hyperplasia after stenting by over-expression of p15: a member of the INK4 family of cyclin-dependent kinase inhibitors. J Mol Cell Cardiol 2010; 50:417-25. [PMID: 21081134 DOI: 10.1016/j.yjmcc.2010.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 11/08/2010] [Accepted: 11/09/2010] [Indexed: 11/25/2022]
Abstract
We evaluated the role of p15(Ink4), a member of the INK4 family of CDK inhibitors on vascular smooth muscle cells (VSMCs) proliferation, cell cycle progression and intimal hyperplasia after stenting. Aortic VSMCs transduced with either adenovirus encoding for p15(Ink4) or β-galactosidase were assessed for DNA synthesis, cell cycle progression, and pRb phosphorylation. Rabbit carotid arteries were stented and treated with peri-adventitial delivery of saline or adenovirus encoding for p15(Ink4) or β-galactosidase. p15(Ink4) transgene and protein expression were evaluated at 24 h and 72 h, respectively. In-stent cell proliferation was evaluated by BrdU at day 7. Histomorphometric analysis of in-stent intimal hyperplasia was performed at 10 weeks. Human p15(Ink4) DNA was detected in transduced VSMCs at 24h. p15(Ink4) over-expression reduced VSMCs DNA synthesis by 60%. Cell cycle progression was inhibited, with a 30% increase in G1 population accompanied by inhibition of pRb phosphorylation. Human p15(Ink4) transgene was identified in transduced stented arteries but not in control arteries. p15(Ink4) immunostaining was increased and cell proliferation significantly reduced by 50% in p15(Ink4) transduced arteries. Intimal cross-sectional area (CSA) of p15(Ink4)-treated group was significantly lower than the β-gal treated and non-transduced groups (p=0.008). There were no differences in the intimal or medial inflammatory response between groups. p15(Ink4) over-expression blocks cell cycle progression leading to inhibition of VSMCs proliferation. Peri-adventitial delivery of p15(Ink4) significantly inhibits in-stent intimal hyperplasia.
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Affiliation(s)
- Amit Segev
- Interventional Cardiology Unit, Chaim Sheba Medical Center, Tel Hashomer, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
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Tiroch KA, Byrne RA, Kastrati A. Pharmacological prevention and management of restenosis. Expert Opin Pharmacother 2010; 11:1855-72. [DOI: 10.1517/14656566.2010.485610] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Affiliation(s)
- Teruo Inoue
- Department of Cardiovascular and Renal Medicine, Saga University Faculty of Medicine
| | - Koichi Node
- Department of Cardiovascular and Renal Medicine, Saga University Faculty of Medicine
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Mao J, Chen L, Xu B, Wang L, Wang W, Li M, Zheng M, Li H, Guo J, Li W, Jacob TJ, Wang L. Volume-activated chloride channels contribute to cell-cycle-dependent regulation of HeLa cell migration. Biochem Pharmacol 2009; 77:159-68. [DOI: 10.1016/j.bcp.2008.10.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 09/23/2008] [Accepted: 10/02/2008] [Indexed: 10/21/2022]
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28
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Ruster C, Bondeva T, Franke S, Forster M, Wolf G. Advanced glycation end-products induce cell cycle arrest and hypertrophy in podocytes. Nephrol Dial Transplant 2008; 23:2179-91. [DOI: 10.1093/ndt/gfn085] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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29
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Kundumani-Sridharan V, Wang D, Karpurapu M, Liu Z, Zhang C, Dronadula N, Rao GN. Suppression of activation of signal transducer and activator of transcription-5B signaling in the vessel wall reduces balloon injury-induced neointima formation. THE AMERICAN JOURNAL OF PATHOLOGY 2007; 171:1381-94. [PMID: 17823285 PMCID: PMC1988886 DOI: 10.2353/ajpath.2007.061258] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Previously, we have demonstrated that STAT-5B plays a role in thrombin-induced vascular smooth muscle cell (VSMC) growth and motility. To learn more about the role of STAT-5B in vessel wall remodeling, we examined its involvement in platelet-derived growth factor-BB (PDGF-BB)-stimulated VSMC growth and motility and balloon injury-induced neointima formation. PDGF-BB activated STAT-5B as measured by its tyrosine phosphorylation, DNA binding, and reporter gene activity. PDGF-BB induced cyclin D1 expression, CDK4 activity, and Rb protein phosphorylation, leading to VSMC growth and motility, and these responses were suppressed by the blockade of STAT-5B. Increased cyclin D1 levels, CDK4 activity, and Rb protein phosphorylation were observed in 1-week balloon-injured arteries compared with uninjured arteries, and these responses were also suppressed by adenovirus-mediated expression of dnSTAT-5B. In addition, adenovirus-mediated expression of dnSTAT-5B attenuated balloon injury-induced smooth muscle cell migration from media to intima and their proliferation in intima, resulting in reduced neointima formation. These observations indicate that STAT-5B plays an important role in PDGF-BB-induced VSMC growth and motility in vitro and balloon injury-induced neointima formation in vivo.
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Shen AG, Shi SX, Chen ML, Qin J, Gao SF, Cheng C. Dynamic changes of p27(kip1) and Skp2 expression in injured rat sciatic nerve. Cell Mol Neurobiol 2007; 28:713-25. [PMID: 17647103 DOI: 10.1007/s10571-007-9167-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2007] [Accepted: 06/15/2007] [Indexed: 10/23/2022]
Abstract
S phase kinase-associated protein 2 (Skp2), an F-box protein, is required for the ubiquitination and consequent degradation of p27(kip1). Previous reports have showed that p27(kip1 )played important roles in cell cycle regulation and neurogenesis in the developing central nervous system. But the distribution and function of p27(kip1 )and Skp2 in nervous system lesion and regeneration remains unclear. In this study, we observed that they were expressed mainly in both Schwann cells and axons in adult rat sciatic nerve. Sciatic nerve crush and transection resulted in a significant up-regulation of Skp2 and a down-regulation of p27(kip1). By immunochemistry, we found that in the distal stumps of transected nerve from the end to the edge, the appearance of Skp2 in the edge is coincided with the decrease in p27(kip1) levels. Changes of them were inversely correlated. Results obtained by coimmunoprecipitation and double labeling further showed their interaction in the regenerating process. Thus, these results indicate that p27(kip1 )and Skp2 likely play an important role in peripheral nerve injury and regeneration.
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Affiliation(s)
- Ai-Guo Shen
- The Jiangsu Province Key Laboratory of Neuroregeneration, Nantong University, Nantong, P.R. China
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31
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Ahmed S, Liu CC, Nawshad A. Mechanisms of palatal epithelial seam disintegration by transforming growth factor (TGF) beta3. Dev Biol 2007; 309:193-207. [PMID: 17698055 PMCID: PMC2084085 DOI: 10.1016/j.ydbio.2007.06.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 06/18/2007] [Accepted: 06/21/2007] [Indexed: 12/01/2022]
Abstract
TGFbeta3 signaling initiates and completes sequential phases of cellular differentiation that is required for complete disintegration of the palatal medial edge seam, that progresses between 14 and 17 embryonic days in the murine system, which is necessary in establishing confluence of the palatal stroma. Understanding the cellular mechanism of palatal MES disintegration in response to TGFbeta3 signaling will result in new approaches to defining the causes of cleft palate and other facial clefts that may result from failure of seam disintegration. We have isolated MES primary cells to study the details of MES disintegration mechanism by TGFbeta3 during palate development using several biochemical and genetic approaches. Our results demonstrate a novel mechanism of MES disintegration where MES, independently yet sequentially, undergoes cell cycle arrest, cell migration and apoptosis to generate immaculate palatal confluency during palatogenesis in response to robust TGFbeta3 signaling. The results contribute to a missing fundamental element to our base knowledge of the diverse roles of TGFbeta3 in functional and morphological changes that MES undergo during palatal seam disintegration. We believe that our findings will lead to more effective treatment of facial clefting.
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Affiliation(s)
| | | | - Ali Nawshad
- Corresponding author: Tel : 402-472-1378, Fax: 402-472-2551,
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32
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Narron JV, Stoops TD, Barringhaus K, Matsumura M, Everett AD. Hepatoma-derived growth factor is expressed after vascular injury in the rat and stimulates smooth muscle cell migration. Pediatr Res 2006; 59:778-83. [PMID: 16641209 DOI: 10.1203/01.pdr.0000219299.24435.4f] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The role of hepatoma-derived growth factor (HDGF), a novel nuclear-targeted vascular smooth muscle cell (SMC) mitogen in vascular injury is unknown. We hypothesized that HDGF plays a role in SMC proliferation and migration in formation of the neointima after balloon injury of the rat carotid. Using co-immunohistochemical staining, HDGF and proliferating cell nuclear antigen (PCNA) were co-expressed in 80% of nuclei of neointimal cells 7 d post carotid balloon injury with HDGF. The HDGF-positive medial and neointimal cells were smooth muscle actin negative and therefore likely represented a subgroup of SMC that have undergone phenotypic switching. Utilizing modified Boyden chamber migration assays, adenoviral-expressed HDGF in mouse SMC increased migration 10-fold (20 versus 2). HDGF gene silencing reduced both SMC proliferation and migration. In conclusion, HDGF is highly expressed in the media and neointima post balloon injury, a SMC mitogen and positive regulator of cell migration. We speculate that HDGF is involved in the SMC proliferative and migratory response to injury resulting in neointimal formation.
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Affiliation(s)
- Jill V Narron
- Department of Pediatrics, University of Virginia Health System, Charlottesville, Virginia 22908, USA
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33
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Poliseno L, Cecchettini A, Mariani L, Evangelista M, Ricci F, Giorgi F, Citti L, Rainaldi G. Resting smooth muscle cells as a model for studying vascular cell activation. Tissue Cell 2006; 38:111-20. [PMID: 16466759 DOI: 10.1016/j.tice.2005.12.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2005] [Revised: 12/23/2005] [Accepted: 12/28/2005] [Indexed: 01/04/2023]
Abstract
Vascular smooth muscle (VSM) cells constitute the main structural components of tunica media. Under physiological conditions, these cells display a contractile phenotype and a low proliferative activity. However, they may also acquire a synthetic phenotype and become predominantly proliferative if stimulated under certain stress conditions. This capacity plays a major role in the inception and progression of such cardiovascular diseases as atherosclerosis, hypertension and restenosis. Porcine coronary smooth muscle (PCSM) cells exhibit a synthetic phenotype (ON cells) under standard culturing conditions, but they can be reverted to a contractile phenotype (OFF cells) in a serum-free medium. However, OFF cells can also re-acquire a synthetic phenotype (OFF/ON cells) upon serum administration. In the present study, proliferative and contractile behaviors were characterized by expression of specific differentiation markers. Taken together, these results demonstrate that porcine vascular smooth muscle cells can retain their phenotypic plasticity in culture, and thus mimic in vitro their in vivo differentiation states. OFF cells may thus provide a suitable model system in studying the mechanism(s) by which either known or unknown serum factors may trigger vascular smooth muscle activation. In the present study, this possibility was actually tested by exposing OFF cells to fetal bovine serum (FBS), PDGF-BB and IGF-I. Data show that only FBS could induce a synthetic phenotype in OFF cells, while both PDGF-BB and IGF-I failed to induce any VSM activation.
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Affiliation(s)
- Laura Poliseno
- Laboratory of Molecular and Gene Therapy, Institute of Clinical Physiology, CNR, Area della Ricerca, Via Moruzzi 1, 56124 Pisa, Italy
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Schiele TM. Current understanding of coronary in-stent restenosis. Pathophysiology, clinical presentation, diagnostic work-up, and management. ACTA ACUST UNITED AC 2006; 94:772-90. [PMID: 16258781 DOI: 10.1007/s00392-005-0299-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2005] [Accepted: 07/18/2005] [Indexed: 12/29/2022]
Abstract
In-stent restenosis is the limiting entity following coronary stent implantation. It is associated with significant morbidity and cost and thus represents a major clinical and economical problem. Worldwide, approximately 250 000 in-stent restenotic lesions per year have to be dealt with. The pathophysiology of instent restenosis is multifactorial and comprises inflammation, smooth muscle cell migration and proliferation and extracellular matrix formation, all mediated by distinct molecular pathways. Instent restenosis has been recognised as very difficult to manage, with a repeat restenosis rate of 50% regardless of the mechanical angioplasty device used. Much more favourable results were reported for the adjunctive irradiation of the in-stent restenotic lesion, with a consistent reduction of the incidence of repeat in-stent restenosis by 50%. Data from the first clinical trials on drug-eluting stents for the treatment of in-stent restenosis have shown very much promise yielding this strategy likely to become the treatment of choice. This review outlines the histological and molecular findings of the pathophysiology, the epidemiology, the predictors and the diagnostic work-up of in-stent restenosis and puts emphasis on the various treatment options for its prevention and therapy.
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Affiliation(s)
- T M Schiele
- Kardiologie, Klinikum der Ludwig-Maximilians-Universität München--Innenstadt, Ziemssenstrasse 1, 80336 München, Germany.
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Parry TJ, Brosius R, Thyagarajan R, Carter D, Argentieri D, Falotico R, Siekierka J. Drug-eluting stents: Sirolimus and paclitaxel differentially affect cultured cells and injured arteries. Eur J Pharmacol 2005; 524:19-29. [PMID: 16271360 DOI: 10.1016/j.ejphar.2005.09.042] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2005] [Accepted: 09/01/2005] [Indexed: 12/13/2022]
Abstract
Sirolimus and paclitaxel eluted from stents inhibit cell proliferation and other cellular processes by dramatically different mechanisms. In this study, the effects of sirolimus and paclitaxel on cultured human coronary artery smooth muscle and endothelial cell function or cell cycle changes in balloon-injured arteries were directly compared. Both sirolimus and paclitaxel inhibited smooth muscle and endothelial cell proliferation. However, only paclitaxel inhibited smooth muscle and endothelial cell migration at low (nM) concentrations. Sirolimus arrested smooth muscle and endothelial cells in the G0/G1 phase of the cell cycle without inducing apoptosis while paclitaxel produced apoptosis in both cell types at low nanomolar concentrations. Although both agents blocked neointimal formation, sirolimus applied locally to injured rat carotid arteries increased the percentage of cycling vascular cells in G0/G1 without inducing apoptosis while paclitaxel increased the percentage of cycling cells in S and G2/M phases while inducing apoptosis. These results suggest that sirolimus reduces neointimal hyperplasia through a cytostatic mechanism while paclitaxel produces apoptotic cell death.
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Affiliation(s)
- Tom J Parry
- Cordis Corporation, a Johnson and Johnson Company, Warren, NJ, USA
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36
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Abstract
More than 1 million percutaneous coronary interventions (PCIs) are performed yearly worldwide. Restenosis is the recurrent narrowing that can occur within 6 months following an initially successful PCI. Although drug-eluting stents have accomplished remarkable success, restenosis has not been eliminated and optimisation of both the polymers and drugs associated with them is desirable. This article reviews the presently available and potential preventive approaches against restenosis, including the sirolimus and paclitaxel drug-eluting stents.
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Affiliation(s)
- Pierre-Frédéric Keller
- Montreal Heart Institute, Department of Medicine, 5000 Belanger Street, Montreal, Canada
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37
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Torella D, Leosco D, Indolfi C, Curcio A, Coppola C, Ellison GM, Russo VG, Torella M, Li Volti G, Rengo F, Chiariello M. Aging exacerbates negative remodeling and impairs endothelial regeneration after balloon injury. Am J Physiol Heart Circ Physiol 2004; 287:H2850-60. [PMID: 15231505 DOI: 10.1152/ajpheart.01119.2003] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Many older patients, because of their high prevalence of coronary artery disease, are candidates for percutaneous coronary interventions (PCI), but the effects of vascular aging on restenosis after PCI are not yet well understood. Balloon injury to the right carotid artery was performed in adult and old rats. Vascular smooth muscle cell (VSMC) proliferation, apoptotic cell death, together with Akt induction, telomerase activity, p27kip1, and endothelial nitric oxide synthase (eNOS) expression was assessed in isolated arteries. Neointima hyperplasia and vascular remodeling along with endothelial cell regeneration were also measured after balloon injury. Arteries isolated from old rats exhibited a significant reduction of VSMC proliferation and an increase in apoptotic death after balloon injury when compared with adult rats. In the vascular wall of adult rats, balloon dilation induced Akt phosphorylation, and this was barely present in old rats. In arteries from old rats, Akt-modulated cell cycle check points like telomerase activity and p27kip1 expression were decreased and increased, respectively, compared with adults. After balloon injury, old rats showed a significant reduction of neointima formation and an increased vascular negative remodeling compared with adults. These results were coupled by a marked delay in endothelial regeneration in aged rats, partially mediated by a decreased eNOS expression and phosphorylation. Interestingly, chronic administration of l-arginine prevented negative remodeling and improved reendothelialization after balloon injury in aged animals. A decreased neointimal proliferation, an impaired endothelial regeneration, and an increase in vascular remodeling after balloon injury were observed in aged animals. The molecular mechanisms underlying these responses seem to be a reduced Akt and eNOS activity.
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Affiliation(s)
- Daniele Torella
- Div. of Cardiology, Magna Graecia Univ., Via Tommaso Campanella, 115, 88100 Catanzaro, Italy
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38
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Shimizu-Hirota R, Sasamura H, Kuroda M, Kobayashi E, Saruta T. Functional characterization of podocan, a member of a new class in the small leucine-rich repeat protein family. FEBS Lett 2004; 563:69-74. [PMID: 15063725 DOI: 10.1016/s0014-5793(04)00250-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2004] [Revised: 02/24/2004] [Accepted: 03/01/2004] [Indexed: 11/18/2022]
Abstract
An important component of the extracellular matrix is the group of non-collagenous proteins belonging to the small leucine-rich repeat (SLR) protein family. A new SLR protein, podocan, with structural characteristics different from the known classes of the SLR protein family has been identified recently from the kidney. In this study, we examined the functional characteristics of this SLR protein expressed in cultured cells. Podocan was clearly observed intracellularly and was also detectable in the supernatant. Treatment of the expressed protein with various glycoenzymes suggested that podocan is a glycoprotein containing N-linked oligosaccharides but not a classical proteoglycan. Moreover, podocan was found to bind type 1 collagen. Cells transfected with podocan showed reductions in cell growth and migration, concomitant with increased p21 expression. Podocan mRNA was detected by reverse transcription polymerase chain reaction not only in the kidney, but also in other tissues including the heart and vascular smooth muscle cells, suggesting that podocan may have a potential role in growth regulation in cardiovascular tissues.
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MESH Headings
- Animals
- CHO Cells
- COS Cells
- Cell Division/drug effects
- Cell Movement/drug effects
- Cells, Cultured
- Chlorocebus aethiops
- Collagen Type I/metabolism
- Cricetinae
- Cricetulus
- Gene Expression Profiling
- Glycoproteins
- Humans
- Intercellular Signaling Peptides and Proteins
- Leucine-Rich Repeat Proteins
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Proteins/chemistry
- Proteins/classification
- Proteins/genetics
- Proteins/metabolism
- Proteins/pharmacology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats
- Recombinant Fusion Proteins/metabolism
- Repetitive Sequences, Amino Acid
- Tissue Distribution
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Affiliation(s)
- Ryoko Shimizu-Hirota
- Department of Internal Medicine, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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39
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Potente M, Fisslthaler B, Busse R, Fleming I. 11,12-Epoxyeicosatrienoic acid-induced inhibition of FOXO factors promotes endothelial proliferation by down-regulating p27Kip1. J Biol Chem 2003; 278:29619-25. [PMID: 12773534 DOI: 10.1074/jbc.m305385200] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cytochrome P450-derived epoxyeicosatrienoic acids (EETs) stimulate endothelial cell proliferation and angiogenesis. In this study, we investigated the involvement of the forkhead box, class O (FOXO) family of transcription factors and their downstream target p27Kip1 in EET-induced endothelial cell proliferation. Incubation of human umbilical vein endothelial cells with 11,12-EET induced a time- and dose-dependent decrease in p27Kip1 protein expression, whereas p21Cip1 was not significantly affected. This effect on p27Kip1 protein was associated with decreased mRNA levels as well as p27Kip1 promoter activity. 11,12-EET also stimulated the time-dependent phosphorylation of Akt and of the forkhead factors FOXO1 and FOXO3a, effects prevented by the phosphatidylinositol 3-kinase inhibitor LY 294002. Transfection of endothelial cells with either a dominant-negative or an "Akt-resistant"/constitutively active FOXO3a mutant reversed the 11,12-EET-induced down-regulation of p27Kip1, whereas transfection of a constitutive active Akt decreased p27Kip1 expression independently of the presence or absence of 11,12-EET. To determine whether these effects are involved in EET-induced proliferation, endothelial cells were transfected with the 11,12-EET-generating epoxygenase CYP2C9. Transfection of CYP2C9 elicited endothelial cell proliferation and this effect was inhibited in cells co-transfected with CYP2C9 and either a dominant-negative Akt or constitutively active FOXO3a. Reducing FOXO expression using RNA interference, on the other hand, attenuated p27Kip1 expression and stimulated endothelial cell proliferation. These results indicate that EET-induced endothelial cell proliferation is associated with the phosphatidylinositol 3-kinase/Akt-dependent phosphorylation and inactivation of FOXO factors and the subsequent decrease in expression of the cyclin-dependent kinase inhibitor p27Kip1.
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MESH Headings
- 8,11,14-Eicosatrienoic Acid/analogs & derivatives
- 8,11,14-Eicosatrienoic Acid/pharmacology
- Aryl Hydrocarbon Hydroxylases/metabolism
- Aryl Hydrocarbon Hydroxylases/physiology
- Blotting, Northern
- Blotting, Western
- Cell Cycle Proteins/metabolism
- Cell Division
- Cells, Cultured
- Cyclin-Dependent Kinase Inhibitor p27
- Cytochrome P-450 CYP2C9
- DNA-Binding Proteins/antagonists & inhibitors
- Dose-Response Relationship, Drug
- Down-Regulation
- Endothelium, Vascular/cytology
- Enzyme Inhibitors/pharmacology
- Forkhead Box Protein O1
- Forkhead Transcription Factors
- Genes, Dominant
- Humans
- Immunoblotting
- Luciferases/metabolism
- Neovascularization, Physiologic
- Phosphoinositide-3 Kinase Inhibitors
- Phosphorylation
- Plasmids/metabolism
- Promoter Regions, Genetic
- RNA, Messenger/metabolism
- RNA, Small Interfering/metabolism
- Time Factors
- Transcription Factors/antagonists & inhibitors
- Transfection
- Tumor Suppressor Proteins/metabolism
- Umbilical Veins/cytology
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Michael Potente
- Institut für Kardiovaskuläre Physiologie, Klinikum der J. W. G.-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
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40
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Abstract
Cell division relies on the activation of cyclins, which bind to cyclin-dependent kinases (CDKs) to induce cell-cycle progression towards S phase and later to initiate mitosis. Since uncontrolled cyclin-dependent kinase activity is often the cause of human cancer, their function is tightly regulated by cell-cycle inhibitors such as the p21 and p27 Cip/Kip proteins. Following anti-mitogenic signals or DNA damage, p21 and p27 bind to cyclin-CDK complexes to inhibit their catalytic activity and induce cell-cycle arrest. Interestingly, recent discoveries suggest that p21 and p27 might have new activities that are unrelated to their function as CDK inhibitors. The identification of new targets of Cip/Kip proteins as well as evidence of Cip/Kip cytoplasmic relocalization have revealed unexpected functions for these proteins in the control of CDK activation, in the regulation of apoptosis and in transcriptional activation. This article discusses recent insights into these possible additional functions of p21 and p27.
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41
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Burstyn-Cohen T, Kalcheim C. Association between the cell cycle and neural crest delamination through specific regulation of G1/S transition. Dev Cell 2002; 3:383-95. [PMID: 12361601 DOI: 10.1016/s1534-5807(02)00221-6] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Delamination of premigratory neural crest cells from the dorsal neural tube depends both upon environmental signals and cell-intrinsic mechanisms and is a prerequisite for cells to engage in migration. Here we show that avian neural crest cells synchronously emigrate from the neural tube in the S phase of the cell cycle. Furthermore, specific inhibition of the transition from G1 to S both in ovo and in explants blocks delamination, whereas arrest at the S or G2 phases has no immediate effect. Thus, the events taking place during G1 that control the transition from G1 to S are necessary for the epithelial to mesenchymal conversion of crest precursors.
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Affiliation(s)
- Tal Burstyn-Cohen
- Department of Anatomy and Cell Biology, Hebrew University-Hadassah Medical School, P.O. Box 12272, Jerusalem 91120, Israel
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42
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Abstract
Effective tissue remodelling is essential to the survival of adult organs. Many of the signalling pathways that control these cellular decisions are regulated by nuclear interactions of cell-cycle proteins. Molecules that target cyclin-dependent kinases (CDKs) or CDK inhibitors (CKIs) represent a new class of therapeutic agents that influence tissue remodelling in several organ systems. An understanding of their cell-specific functions is leading to the development of exciting and bold approaches to the treatment cancer, cardiovascular disease and other diseases.
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Affiliation(s)
- Elizabeth G Nabel
- Cardiovascular Branch, National Heart, Lung and Blood Institute/National Institutes of Health, Building 10/8C103, 10 Center Drive, Bethesda, Maryland 20892, USA.
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