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Deng F, Chen J, Xiang J, Li Y, Qiao Y, Liu Z, Ding T. Light-Programmed Bistate Colloidal Actuation Based on Photothermal Active Plasmonic Substrate. RESEARCH 2023; 6:0020. [PMID: 37040515 PMCID: PMC10076013 DOI: 10.34133/research.0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/15/2022] [Indexed: 01/12/2023]
Abstract
Active particles have been regarded as the key models to mimic and understand the complex systems of nature. Although chemical and field-powered active particles have received wide attentions, light-programmed actuation with long-range interaction and high throughput remains elusive. Here, we utilize photothermal active plasmonic substrate made of porous anodic aluminum oxide filled with Au nanoparticles and poly(
N
-isopropylacrylamide) (PNIPAM) to optically oscillate silica beads with robust reversibility. The thermal gradient generated by the laser beam incurs the phase change of PNIPAM, producing gradient of surface forces and large volume changes within the complex system. The dynamic evolution of phase change and water diffusion in PNIPAM films result in bistate locomotion of silica beads, which can be programmed by modulating the laser beam. This light-programmed bistate colloidal actuation provides promising opportunity to control and mimic the natural complex systems.
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Affiliation(s)
- Fangfang Deng
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Juntao Chen
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Junxiang Xiang
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Yong Li
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Yan Qiao
- Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ze Liu
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
| | - Tao Ding
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072, China
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Barravecchia I, De Cesari C, Forcato M, Scebba F, Pyankova OV, Bridger JM, Foster HA, Signore G, Borghini A, Andreassi M, Andreazzoli M, Bicciato S, Pè ME, Angeloni D. Microgravity and space radiation inhibit autophagy in human capillary endothelial cells, through either opposite or synergistic effects on specific molecular pathways. Cell Mol Life Sci 2021; 79:28. [PMID: 34936031 PMCID: PMC11072227 DOI: 10.1007/s00018-021-04025-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/12/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022]
Abstract
Microgravity and space radiation (SR) are two highly influential factors affecting humans in space flight (SF). Many health problems reported by astronauts derive from endothelial dysfunction and impaired homeostasis. Here, we describe the adaptive response of human, capillary endothelial cells to SF. Reference samples on the ground and at 1g onboard permitted discrimination between the contribution of microgravity and SR within the combined responses to SF. Cell softening and reduced motility occurred in SF cells, with a loss of actin stress fibers and a broader distribution of microtubules and intermediate filaments within the cytoplasm than in control cells. Furthermore, in space the number of primary cilia per cell increased and DNA repair mechanisms were found to be activated. Transcriptomics revealed the opposing effects of microgravity from SR for specific molecular pathways: SR, unlike microgravity, stimulated pathways for endothelial activation, such as hypoxia and inflammation, DNA repair and apoptosis, inhibiting autophagic flux and promoting an aged-like phenotype. Conversely, microgravity, unlike SR, activated pathways for metabolism and a pro-proliferative phenotype. Therefore, we suggest microgravity and SR should be considered separately to tailor effective countermeasures to protect astronauts' health.
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Affiliation(s)
- Ivana Barravecchia
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Via G. Moruzzi, 1, 56124, Pisa, Italy
- Department of Pharmacy, University of Pisa, 56126, Pisa, Italy
| | - Chiara De Cesari
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Via G. Moruzzi, 1, 56124, Pisa, Italy
- Department of Biology, University of Pisa, 56123, Pisa, Italy
| | - Mattia Forcato
- Center for Genome Research, Department of Life Science, University of Modena and Reggio Emilia, 41125, Modena, Italy
| | - Francesca Scebba
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Via G. Moruzzi, 1, 56124, Pisa, Italy
| | - Olga V Pyankova
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Via G. Moruzzi, 1, 56124, Pisa, Italy
| | - Joanna M Bridger
- Laboratory of Nuclear and Genomic Health, Centre of Genome Engineering and Maintenance, Division of Biosciences, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, UK
| | - Helen A Foster
- Department of Biological and Environmental Sciences, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | | | - Andrea Borghini
- Institute of Clinical Physiology, National Research Council, 56124, Pisa, Italy
| | | | | | - Silvio Bicciato
- Center for Genome Research, Department of Life Science, University of Modena and Reggio Emilia, 41125, Modena, Italy
| | - Mario Enrico Pè
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Via G. Moruzzi, 1, 56124, Pisa, Italy
| | - Debora Angeloni
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Via G. Moruzzi, 1, 56124, Pisa, Italy.
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3
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Xia Y, Tang D, Zeng Z, Wang X, Wang S. Cell Adhesion and Migration Behaviors on Patterned Thermoresponsive Microgel Stripes. ACS APPLIED BIO MATERIALS 2020; 3:8551-8558. [DOI: 10.1021/acsabm.0c00914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yongqing Xia
- Center for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Dachao Tang
- Center for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Zhujun Zeng
- Center for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Xiaojuan Wang
- Department of Applied Chemistry, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Shengjie Wang
- Center for Bioengineering and Biotechnology, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
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Interleukin-4 assisted calcium-strontium-zinc-phosphate coating induces controllable macrophage polarization and promotes osseointegration on titanium implant. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111512. [PMID: 33255069 PMCID: PMC7493725 DOI: 10.1016/j.msec.2020.111512] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/20/2020] [Accepted: 09/04/2020] [Indexed: 12/12/2022]
Abstract
Titanium (Ti) and its alloys are believed to be promising scaffold materials for dental and orthopedic implantation due to their ideal mechanical properties and biocompatibility. However, the host immune response always causes implant failures in the clinic. Surface modification of the Ti scaffold is an important factor in this process and has been widely studied to regulate the host immune response and to further promote bone regeneration. In this study, a calcium-strontium-zinc-phosphate (CSZP) coating was fabricated on a Ti implant surface by phosphate chemical conversion (PCC) technique, which modified the surface topography and element constituents. Here, we envisioned an accurate immunomodulation strategy via delivery of interleukin (IL)-4 to promote CSZP-mediated bone regeneration. IL-4 (0 and 40 ng/mL) was used to regulate immune response of macrophages. The mechanical properties, biocompatibility, osteogenesis, and anti-inflammatory properties were evaluated. The results showed that the CSZP coating exhibited a significant enhancement in surface roughness and hydrophilicity, but no obvious changes in proliferation or apoptosis of bone marrow mesenchymal stem cells (BMMSCs) and macrophages. In vitro, the mRNA and protein expression of osteogenic related factors in BMMSCs cultured on a CSZP coating, such as ALP and OCN, were significantly higher than those on bare Ti. In vivo, there was no enhanced bone formation but increased macrophage type 1 (M1) polarization on the CSZP coating. IL-4 could induce M2 polarization and promote osteogenesis of BMMSCs on CSZP in vivo and in vitro. In conclusion, the CSZP coating is an effective scaffold for BMMSCs osteogenesis, and IL-4 presents the additional advantage of modulating the immune response for bone regeneration on the CSZP coating in vivo. A chemical conversion calcium-strontium-zinc-phosphate (CSZP) coating is prepared on titanium. The CSZP coating exhibits micellar lamellar crystal morphology in micro-nano scale. The CSZP coating has an optimal topography and element composition for osteogenesis. Interleukin-4 assisted CSZP coating can obtain better osteoimmunomodulation properties.
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Yi G, Cai Z, Gao Z, Jiang Z, Huang X, Derksen JJ. Droplet impingement and wetting behavior on a chemically heterogeneous surface in the Beyond–Cassie–Baxter regime. AIChE J 2020. [DOI: 10.1002/aic.16263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Guina Yi
- Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical Technology Beijing China
- State Key Laboratory of Chemical Resource Engineering, School of Chemical EngineeringBeijing University of Chemical Technology Beijing China
| | - Ziqi Cai
- Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical Technology Beijing China
- State Key Laboratory of Chemical Resource Engineering, School of Chemical EngineeringBeijing University of Chemical Technology Beijing China
- Department of Chemical Science and EngineeringKobe University Kobe Hyogo Japan
| | - Zhengming Gao
- Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical Technology Beijing China
- State Key Laboratory of Chemical Resource Engineering, School of Chemical EngineeringBeijing University of Chemical Technology Beijing China
| | - Zhichao Jiang
- Research Institute of Petroleum ProcessingSINOPEC Beijing China
| | - Xiongbin Huang
- Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical Technology Beijing China
- State Key Laboratory of Chemical Resource Engineering, School of Chemical EngineeringBeijing University of Chemical Technology Beijing China
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Moreira-Soares M, Cunha SP, Bordin JR, Travasso RDM. Adhesion modulates cell morphology and migration within dense fibrous networks. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:314001. [PMID: 32378515 DOI: 10.1088/1361-648x/ab7c17] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
Abstract
One of the most fundamental abilities required for the sustainability of complex life forms is active cell migration, since it is essential in diverse processes from morphogenesis to leukocyte chemotaxis in immune response. The movement of a cell is the result of intricate mechanisms, that involve the coordination between mechanical forces, biochemical regulatory pathways and environmental cues. In particular, epithelial cancer cells have to employ mechanical strategies in order to migrate through the tissue's basement membrane and infiltrate the bloodstream during the invasion stage of metastasis. In this work we explore how mechanical interactions such as spatial restriction and adhesion affect migration of a self-propelled droplet in dense fibrous media. We have performed a systematic analysis using a phase-field model and we propose a novel approach to simulate cell migration with dissipative particle dynamics modelling. With this purpose we have measured in our simulation the cell's velocity and quantified its morphology as a function of the fibre density and of its adhesiveness to the matrix fibres. Furthermore, we have compared our results to a previousin vitromigration assay of fibrosarcoma cells in fibrous matrices. The results show good agreement between the two methodologies and experiments in the literature, which indicates that these minimalist descriptions are able to capture the main features of the system. Our results indicate that adhesiveness is critical for cell migration, by modulating cell morphology in crowded environments and by enhancing cell velocity. In addition, our analysis suggests that matrix metalloproteinases (MMPs) play an important role as adhesiveness modulators. We propose that new assays should be carried out to address the role of adhesion and the effect of different MMPs in cell migration under confined conditions.
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Affiliation(s)
| | - Susana P Cunha
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - José Rafael Bordin
- Department of Physics, Institute of Physics and Mathematics, Federal University of Pelotas, Rua dos Ipês, Capão do Leão, RS, 96050-500, Brazil
| | - Rui D M Travasso
- CFisUC, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
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Suresh H, Shishvan SS, Vigliotti A, Deshpande VS. Free-energy-based framework for early forecasting of stem cell differentiation. J R Soc Interface 2019; 16:20190571. [PMID: 31847759 PMCID: PMC6936038 DOI: 10.1098/rsif.2019.0571] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Commitment of stem cells to different lineages is inherently stochastic but regulated by a range of environmental bio/chemo/mechanical cues. Here, we develop an integrated stochastic modelling framework for predicting the differentiation of hMSCs in response to a range of environmental cues, including sizes of adhesive islands, stiffness of substrates and treatment with ROCK inhibitors in both growth and mixed media. The statistical framework analyses the fluctuations of cell morphologies over approximately a 24 h period after seeding the cells in the specific environment and uses the cytoskeletal free-energy distribution to forecast the lineage the hMSCs will commit to. The cytoskeletal free energy which succinctly parametrizes the biochemical state of the cell is shown to capture hMSC commitment over a range of environments while simple morphological factors such as cell shape, tractions on their own are unable to correlate with lineages hMSCs adopt.
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Affiliation(s)
- H Suresh
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK
| | - S S Shishvan
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK.,Department of Structural Engineering, University of Tabriz, Tabriz, Iran
| | - A Vigliotti
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK.,Innovative Materials Laboratory, Italian Aerospace Research Centre, Capua 81043, Italy
| | - V S Deshpande
- Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK
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Garcia PD, Garcia R. Determination of the viscoelastic properties of a single cell cultured on a rigid support by force microscopy. NANOSCALE 2018; 10:19799-19809. [PMID: 30334057 DOI: 10.1039/c8nr05899g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Understanding the relationship between the mechanical properties of living cells and physiology is a central issue in mechanobiology. Mechanical properties are used as fingerprints of the pathological state of a single cell. The force exerted on a cell is influenced by the stiffness of the solid support needed to culture it. This effect is a consequence of the cell's boundary conditions. It causes a cell to appear with mechanical properties different from their real values. Here we develop a bottom effect viscoelastic theory to determine the viscoelastic response of a cell. The theory transforms a force-distance curve into the cell's Young's modulus, loss modulus, relaxation time or viscosity coefficient with independence of the stiffness of the rigid support. The theory predicts that, for a given indentation, the force exerted on the cell's periphery will be larger than on a perinuclear region. Results based on the use of semi-infinite contact mechanics models introduce large numerical errors in the determination of the mechanical properties. Finite element simulations confirm the theory and define its range of applicability.
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Affiliation(s)
- Pablo D Garcia
- Materials Science Factory, Instituto de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Ines de la Cruz 3, 28049 Madrid, Spain.
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