1
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Khateb H, Sørensen RS, Cramer K, Eklund AS, Kjems J, Meyer RL, Jungmann R, Sutherland DS. The Role of Nanoscale Distribution of Fibronectin in the Adhesion of Staphylococcus aureus Studied by Protein Patterning and DNA-PAINT. ACS NANO 2022; 16:10392-10403. [PMID: 35801826 PMCID: PMC9330902 DOI: 10.1021/acsnano.2c00630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Staphylococcus aureus is a widespread and highly virulent pathogen that can cause superficial and invasive infections. Interactions between S. aureus surface receptors and the extracellular matrix protein fibronectin mediate the bacterial invasion of host cells and is implicated in the colonization of medical implant surfaces. In this study, we investigate the role of distribution of both fibronectin and cellular receptors on the adhesion of S. aureus to interfaces as a model for primary adhesion at tissue interfaces or biomaterials. We present fibronectin in patches of systematically varied size (100-1000 nm) in a background of protein and bacteria rejecting chemistry based on PLL-g-PEG and studied S. aureus adhesion under flow. We developed a single molecule imaging assay for localizing fibronectin binding receptors on the surface of S. aureus via the super-resolution DNA points accumulation for imaging in nanoscale topography (DNA-PAINT) technique. Our results indicate that S. aureus adhesion to fibronectin biointerfaces is regulated by the size of available ligand patterns, with an adhesion threshold of 300 nm and larger. DNA-PAINT was used to visualize fibronectin binding receptor organization in situ at ∼7 nm localization precision and with a surface density of 38-46 μm-2, revealing that the engagement of two or more receptors is required for strong S. aureus adhesion to fibronectin biointerfaces.
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Affiliation(s)
- Heba Khateb
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University Aarhus C 8000, Denmark
| | - Rasmus S. Sørensen
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University Aarhus C 8000, Denmark
| | - Kimberly Cramer
- Max
Planck Institute of Biochemistry, Martinsried 82152, Germany
| | | | - Jorgen Kjems
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University Aarhus C 8000, Denmark
- Department
of Molecular Biology and Genetics Aarhus
University Aarhus
C 8000, Denmark
| | - Rikke L. Meyer
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University Aarhus C 8000, Denmark
| | - Ralf Jungmann
- Max
Planck Institute of Biochemistry, Martinsried 82152, Germany
- Faculty
of Physics and Center for Nanoscience, Ludwig
Maximilian University, Munich 80539, Germany
| | - Duncan S. Sutherland
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University Aarhus C 8000, Denmark
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2
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Ghorbani S, Shahrokhtash A, Gautrot JE, Sutherland DS. Protein Ligand Nanopattern Size Selects for Cellular Adhesion via Hemidesmosomes over Focal Adhesions. SMALL METHODS 2022; 6:e2200152. [PMID: 35451210 DOI: 10.1002/smtd.202200152] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Hemidesmosomes (HDs) are multiprotein complexes that firmly anchor epidermal cells to the basement membrane of skin through the interconnection of the cytoplasmic intermediate filaments with extracellular laminin 332 (Ln332). Considerably less attention has been paid to HDs compared to focal complexes/focal adhesions (FC/FAs) in mechanistic single-cell structures due to the lack of suitable in vitro model systems. Here nanopatterns of Ln332 (100-1000 nm) are created to direct and study the formation of HD in adherent HaCaT cells. It is observed that HaCaT cells at Ln 332 nanopatterns adhere via hemidesmosomes, in stark contrast to cells at homogeneous Ln332 surfaces that adhere via FC/FAs. Clustering of α6 integrin is observed at nanopatterned Ln332 of 300 nm patches and larger. Cells at 500 nm diameter patterns show strong colocalization of α6 integrin with ColXVII or pan-cytokeratin compared to 300 nm/1000 nm indicating a threshold for HD initiation >100 nm but a pattern size selection for maturation of HDs. It is demonstrated that the pattern of Ln332 can determine the cellular selection of adhesion types with a size-dependent initiation and maturation of HDs. The protein nanopatterning approach that is presented provides a new in vitro route to study the role of HDs in cell signaling and function.
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Affiliation(s)
- Sadegh Ghorbani
- Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds vej 14, Aarhus C, 8000, Denmark
- The Centre for Cellular Signal Patterns (CellPAT), Gustav Wieds vej 14, Aarhus C, 8000, Denmark
| | - Ali Shahrokhtash
- Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds vej 14, Aarhus C, 8000, Denmark
- The Centre for Cellular Signal Patterns (CellPAT), Gustav Wieds vej 14, Aarhus C, 8000, Denmark
| | - Julien E Gautrot
- School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London, E1 4NS, UK
| | - Duncan S Sutherland
- Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds vej 14, Aarhus C, 8000, Denmark
- The Centre for Cellular Signal Patterns (CellPAT), Gustav Wieds vej 14, Aarhus C, 8000, Denmark
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3
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Schwartz AB, Campos OA, Criado-Hidalgo E, Chien S, Del Álamo JC, Lasheras JC, Yeh YT. Elucidating the Biomechanics of Leukocyte Transendothelial Migration by Quantitative Imaging. Front Cell Dev Biol 2021; 9:635263. [PMID: 33855018 PMCID: PMC8039384 DOI: 10.3389/fcell.2021.635263] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/09/2021] [Indexed: 01/13/2023] Open
Abstract
Leukocyte transendothelial migration is crucial for innate immunity and inflammation. Upon tissue damage or infection, leukocytes exit blood vessels by adhering to and probing vascular endothelial cells (VECs), breaching endothelial cell-cell junctions, and transmigrating across the endothelium. Transendothelial migration is a critical rate-limiting step in this process. Thus, leukocytes must quickly identify the most efficient route through VEC monolayers to facilitate a prompt innate immune response. Biomechanics play a decisive role in transendothelial migration, which involves intimate physical contact and force transmission between the leukocytes and the VECs. While quantifying these forces is still challenging, recent advances in imaging, microfabrication, and computation now make it possible to study how cellular forces regulate VEC monolayer integrity, enable efficient pathfinding, and drive leukocyte transmigration. Here we review these recent advances, paying particular attention to leukocyte adhesion to the VEC monolayer, leukocyte probing of endothelial barrier gaps, and transmigration itself. To offer a practical perspective, we will discuss the current views on how biomechanics govern these processes and the force microscopy technologies that have enabled their quantitative analysis, thus contributing to an improved understanding of leukocyte migration in inflammatory diseases.
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Affiliation(s)
- Amy B Schwartz
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, United States
| | - Obed A Campos
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, United States
| | - Ernesto Criado-Hidalgo
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, United States
| | - Shu Chien
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, United States.,Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Juan C Del Álamo
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, United States.,Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, United States.,Department of Mechanical Engineering, University of Washington, Seattle, WA, United States.,Center for Cardiovascular Biology, University of Washington, Seattle, WA, United States
| | - Juan C Lasheras
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, United States.,Department of Bioengineering, University of California, San Diego, La Jolla, CA, United States.,Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Yi-Ting Yeh
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA, United States.,Department of Bioengineering, University of California, San Diego, La Jolla, CA, United States.,Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, United States
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4
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Kong L, Wang B, Yang X, He B, Hao D, Yan L. Integrin-associated molecules and signalling cross talking in osteoclast cytoskeleton regulation. J Cell Mol Med 2020; 24:3271-3281. [PMID: 32045092 PMCID: PMC7131929 DOI: 10.1111/jcmm.15052] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 01/22/2020] [Accepted: 01/27/2020] [Indexed: 12/30/2022] Open
Abstract
In the ageing skeleton, the balance of bone reconstruction could commonly be broken by the increasing of bone resorption and decreasing of bone formation. Consequently, the bone resorption gradually occupies a dominant status. During this imbalance process, osteoclast is unique cell linage act the bone resorptive biological activity, which is a highly differentiated ultimate cell derived from monocyte/macrophage. The erosive function of osteoclasts is that they have to adhere the bone matrix and migrate along it, in which adhesive cytoskeleton recombination of osteoclast is essential. In that, the podosome is a membrane binding microdomain organelle, based on dynamic actin, which forms a cytoskeleton superstructure connected with the plasma membrane. Otherwise, as the main adhesive protein, integrin regulates the formation of podosome and cytoskeleton, which collaborates with the various molecules including: c-Cbl, p130Cas , c-Src and Pyk2, through several signalling cascades cross talking, including: M-CSF and RANKL. In our current study, we discuss the role of integrin and associated molecules in osteoclastogenesis cytoskeletal, especially podosomes, regulation and relevant signalling cascades cross talking.
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Affiliation(s)
- Lingbo Kong
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Biao Wang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Xiaobin Yang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Baorong He
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Dingjun Hao
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Liang Yan
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
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5
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Immunoregulation of macrophages by dynamic ligand presentation via ligand-cation coordination. Nat Commun 2019; 10:1696. [PMID: 30979900 PMCID: PMC6461616 DOI: 10.1038/s41467-019-09733-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 03/26/2019] [Indexed: 01/15/2023] Open
Abstract
Macrophages regulate host responses to implants through their dynamic adhesion, release, and activation. Herein, we employ bisphosphonate (BP)-coated gold nanoparticle template (BNP) to direct the swift and convertible formation of Mg2+-functional Mg2+-BP nanoparticle (NP) on the BP-AuNP surface via reversible Mg2+-BP coordination, thus producing (Mg2+-BP)-Au dimer (MgBNP). Ethylenediaminetetraacetic acid-based Mg2+ chelation facilitates the dissolution of Mg2+-BP NP, thus enabling the reversion of the MgBNP to the BNP. This convertible nanoassembly incorporating cell-adhesive Mg2+ moieties directs reversible attachment and detachment of macrophages by BP and EDTA, without physical scraping or trypsin that could damage cells. The swift formation of RGD ligand- and Mg2+-bifunctional RGD-Mg2+-BP NP that yields (RGD-Mg2+-BP)-Au dimer (RGDBNP) further stimulates the adhesion and pro-regenerative M2-type polarization of macrophages, both in vitro and in vivo, including rho-associated protein kinase. This swift and non-toxic dimer formation can include diverse bio-functional moieties to regulate host responses to implants. Control of macrophage adhesion and phenotype is important to biomaterial applications. Here, the authors report on the use of bisphosphonate coated gold nanoparticles by magnesium coordination for the controlled adhesion and polarisation of macrophages in vitro and in vivo and controlled cell release.
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6
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Mulens-Arias V, Balfourier A, Nicolás-Boluda A, Carn F, Gazeau F. Disturbance of adhesomes by gold nanoparticles reveals a size- and cell type-bias. Biomater Sci 2019; 7:389-408. [PMID: 30484789 DOI: 10.1039/c8bm01267a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Gold nanoparticles (AuNP) have been thoroughly studied as multifunctional theranosis agents for cell imaging and cancer therapy as well as sensors due to their tunable physical and chemical properties. Although AuNP have proved to be safe in a wide concentration range, yet other important biological effects can arise in the sublethal window of treatment. This is especially pivotal to understand how AuNP can affect cell biology when labeling steps are needed for cell tracking in vivo, as nanoparticle loading can affect cell migratory/invasion ability, a function mediated by filamentous actin-rich nanometric structures collectively called adhesomes. It is noteworthy that, although numerous research studies have addressed the cell response to AuNP loading, yet none of them focuses on adhesome dynamics as a target of intracellular pathways affected by AuNP. We intend to study the collective dynamics of adhesive F-actin rich structures upon AuNP treatment as an approach to understand the complex AuNP-triggered modulation of migration/invasion related cellular functions. We demonstrated that citrate-coated spherical AuNP of different sizes (3, 11, 16, 30 and 40 nm) disturbed podosome-forming rosettes and the resulting extracellular matrix (ECM) degradation in a murine macrophage model depending on core size. This phenomenon was accompanied by a reduction in metalloproteinase MMP2 and an increment in metalloproteinase inhibitors, TIMP-1/2 and SerpinE1. We also found that AuNP treatment has opposite effects on focal adhesions (FA) in endothelial and mesenchymal stem cells. While endothelial cells reduced their mature FA number and ECM degradation rate upon AuNP treatment, mouse mesenchymal stem cells increased the number and size of mature FA and, therefore, the ECM degradation rate. Overall, AuNP appear to disturb adhesive structures and therefore migratory/invasive cell functions measured as ECM degradation ability, providing new insights into AuNP-cell interaction depending on cell type.
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Affiliation(s)
- Vladimir Mulens-Arias
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7075, CNRS and Université Paris Diderot, Université Sorbonne Paris Cité (USPC), 10 Rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France.
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7
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Kang H, Wong SHD, Pan Q, Li G, Bian L. Anisotropic Ligand Nanogeometry Modulates the Adhesion and Polarization State of Macrophages. NANO LETTERS 2019; 19:1963-1975. [PMID: 30740982 DOI: 10.1021/acs.nanolett.8b05150] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Material implants trigger host reactions generated by cells, such as macrophages, which display dynamic adhesion and polarization including M1 inflammatory state and M2 anti-inflammatory state. Creating materials that enable diverse nanoscale display of integrin-binding groups, such as RGD ligand, can unravel nanoscale recruitment and ligation of integrin, which modulate cellular adhesion and activation. Here, we synthesized gold nanorods (GNRs) with various nanoscale anisotropies (i.e., aspect ratios, ARs), but in similar surface areas, and controlled their substrate conjugation to display an anisotropic ligand nanogeometry without modulating ligand density. Using nanoscale immunolabeling, we demonstrated that highly anisotropic ligand-coated GNRs ("AR4" and "AR7") facilitated the recruitment of integrin β1 on macrophages to their nanoscale surfaces. Consequently, highly anisotropic GNRs (e.g., "AR4" and "AR7") elevated the adhesion and M2 state of macrophages, with the inhibition of their M1 state in the culture and mice, entailing rho-associated protein kinase. This nanoscale anisotropic nanogeometry provides a novel and critical parameter to be considered in the generation of biomaterials to potentially modulate host reactions to the implants for immunomodulatory tissue regeneration.
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Affiliation(s)
- Heemin Kang
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
| | - Siu Hong Dexter Wong
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
| | - Qi Pan
- Department of Orthopaedics & Traumatology, Faculty of Medicine , The Chinese University of Hong Kong, Prince of Wales Hospital , Shatin , Hong Kong , China
- Stem Cells and Regenerative Medicine Laboratory, Lui Che Woo Institute of Innovative Medicine, Li Ka Shing Institute of Health Sciences , The Chinese University of Hong Kong, Prince of Wales Hospital , Shatin , Hong Kong , China
| | - Gang Li
- Department of Orthopaedics & Traumatology, Faculty of Medicine , The Chinese University of Hong Kong, Prince of Wales Hospital , Shatin , Hong Kong , China
- Stem Cells and Regenerative Medicine Laboratory, Lui Che Woo Institute of Innovative Medicine, Li Ka Shing Institute of Health Sciences , The Chinese University of Hong Kong, Prince of Wales Hospital , Shatin , Hong Kong , China
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System , The Chinese University of Hong Kong , Hong Kong , China
| | - Liming Bian
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
- Translational Research Centre of Regenerative Medicine and 3D Printing Technologies of Guangzhou Medical University, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou , Guangdong , China
- China Orthopedic Regenerative Medicine Group (CORMed) , Hangzhou , Zhejiang , China
- Shenzhen Research Institute , The Chinese University of Hong Kong , Hong Kong , China
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8
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Abstract
In native tissues, various cell types organize and spatiotemporally function and communicate with neighboring or remote cells in a highly regulated way. How can we replicate these amazing functional structures in vitro? From the view of a chemist, the heterogeneous cells and extracellular matrix (ECM) could be regarded as various chemical substrate materials for "synthetic" reactions during tissue engineering. But how can we accelerate these reactions? Microfluidics provides ideal solutions. Microfluidics could be metaphorically regarded as a miniature "biofactory", whereas the on-chip critical chemical cues such as biomolecule gradients and physical cues such as geometrical confinement, topological guidance, and mechanical stimulations, along with the external stimulations such as light, electricity, acoustics, and magnetics, could be regarded as "catalytic cues" which can accelerate the "synthetic reactions" by precisely and effectively manipulating a series of cell behaviors including cell adhesion, migration, growth, proliferation, differentiation, cell-cell interaction, and cell-matrix interaction to reduce activation energy of the "synthetic reactions". Thus, on the microfluidics platform, the "biofactory", various "synthetic" reactions take place to change the substrate materials (cells and ECM) into products (tissues) in a nonlinear way, which is a typical feature of a biological process. By precisely organizing the substrate materials and spatiotemporally controlling the activity of the products, as a "biofactory", the microfluidics system can not only "synthesize" living tissues but also recreate physiological or pathophysiological processes such as immune responses, angiogenesis, wound healing, and tumor metastasis in vitro to bring insights into the mechanisms underlying these processes taking place in vivo. In this Account, we borrow the concept of chemical "synthesis" to describe how to "synthesize" artificial tissues using microfluidics from a chemist's view. Accelerated by the built-in physiochemical cues on microfluidics and external stimulations, various tissues could be "synthesized" on a microfluidics platform. We summarize that there are "step-by-step synthesis" and "one-step synthesis" on microfluidics for creating desired tissues with unprecedented precision, accuracy, and speed. In recent years, researchers developed various microfluidic techniques including creating adhesive domains for mediating reverse and precise adhesion, chemical gradients for directing cell growth, geometrical confinements and topological cues for manipulating cell migration, and mechanics for stimulating cell differentiation. By employing and orchestrating these on-chip tissue "synthetic" conditions, "step-by-step synthesis" could be realized on chips to develop multilayered tissues such as blood vessels. "One-step synthesis" on chips could develop functional three-dimensional tissue structures such as neural networks or nephron-like structures. Based on these on-chip studies, many critical physiological and pathophysiological processes such as wound healing, tumor metastasis, and atherosclerosis could be deeply investigated, and the drugs or therapeutic approaches could also be evaluated or screened conveniently. The "synthetic tissues on microfluidics" system would pave an avenue for precise creation of artificial tissues for not only fundamental research but also biomedical applications such as tissue engineering.
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Affiliation(s)
- Wenfu Zheng
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, Beijing 100190, P. R. China
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, Beijing 100190, P. R. China
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Rd, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
- The University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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9
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Hager R, Arnold A, Sevcsik E, Schütz GJ, Howorka S. Tunable DNA Hybridization Enables Spatially and Temporally Controlled Surface-Anchoring of Biomolecular Cargo. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:15021-15027. [PMID: 30160973 PMCID: PMC6291803 DOI: 10.1021/acs.langmuir.8b01942] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 07/30/2018] [Indexed: 05/04/2023]
Abstract
The controlled immobilization of biomolecules onto surfaces is relevant in biosensing and cell biological research. Spatial control is achieved by surface-tethering molecules in micro- or nanoscale patterns. Yet, there is an increasing demand for temporal control over how long biomolecular cargo stays immobilized until released into the medium. Here, we present a DNA hybridization-based approach to reversibly anchor biomolecular cargo onto micropatterned surfaces. Cargo is linked to a DNA oligonucleotide that hybridizes to a sequence-complementary, surface-tethered strand. The cargo is released from the substrate by the addition of an oligonucleotide that disrupts the duplex interaction via toehold-mediated strand displacement. The unbound tether strand can be reloaded. The generic strategy is implemented with small-molecule or protein cargo, varying DNA sequences, and multiple surface patterning routes. The approach may be used as a tool in biological research to switch membrane proteins from a locally fixed to a free state, or in biosensing to shed biomolecular receptors to regenerate the sensor surface.
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Affiliation(s)
- Roland Hager
- Center
for Advanced Bioanalysis GmbH. Linz, 4020, Austria
| | - Andreas Arnold
- Institute
of Applied Physics, TU Wien, Wien, 1040, Austria
| | - Eva Sevcsik
- Institute
of Applied Physics, TU Wien, Wien, 1040, Austria
| | | | - Stefan Howorka
- Center
for Advanced Bioanalysis GmbH. Linz, 4020, Austria
- Department
of Chemistry, Institute for Structural and Molecular Biology, University College London (UCL), London, WC1E 6BT, U.K.
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10
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Quintana-Belmares R, Hernández-Pérez G, Montiel-Dávalos A, Gustafsson Å, Miranda J, Rosas-Pérez I, López-Marure R, Alfaro-Moreno E. Urban particulate matter induces the expression of receptors for early and late adhesion molecules on human monocytes. ENVIRONMENTAL RESEARCH 2018; 167:283-291. [PMID: 30077136 DOI: 10.1016/j.envres.2018.07.033] [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: 05/03/2018] [Revised: 07/25/2018] [Accepted: 07/25/2018] [Indexed: 06/08/2023]
Abstract
Exposure to urban particulate matter (PM) is correlated with increases in the emergence of health services due to adverse events and deaths and is mainly related to cardiorespiratory complications. The translocation of particles from the lung into circulation has been proposed as a factor that may trigger systemic effects. Monocytes may be exposed to PM, and if the monocytes are activated, then they are likely to adhere to endothelial cells in a distant organ due to the expression of receptors for adhesion molecules. In the present study, we evaluated the expression of receptors for adhesion molecules (sLex, PSGL-1, LFA-1, VLA-4 and αVβ3) in monocytes (U937 cells) exposed for 3 or 18 h to PM10 (0.001, 0.003, 0.010, 0.030, 0.300, 3 or 30 µg/mL). Exposed cells were co-cultured with human endothelial cells that were naive or previously exposed to the same particles. When U937 cells were exposed to PM10, similar levels of expression for early and late receptors for adhesion molecules were observed from 30 ng/mL as those induced by TNF-α. Cells exposed to particles at concentrations above 30 ng/mL were more adhesive to naive or exposed human endothelial cells. Taken together, our results suggest that it is plausible that activated monocytes may play a role in systemic effects induced by PM10 due to the size distribution of the particles and the concentrations required to trigger the expression of receptors for adhesion molecules in monocytes.
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Affiliation(s)
- Raúl Quintana-Belmares
- Environmental Health Laboratory, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico
| | - Guillermina Hernández-Pérez
- Environmental Health Laboratory, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico
| | - Angélica Montiel-Dávalos
- Environmental Health Laboratory, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico
| | - Åsa Gustafsson
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, SE-151 36 Södertälje, Sweden
| | - Javier Miranda
- Experimental Physics Department, Institute of Physics, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - Irma Rosas-Pérez
- Aerobiology Laboratory, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - Rebeca López-Marure
- Departamento de Fisiología, Instituto Nacional de Cardiología "Ignacio Chávez", Mexico
| | - Ernesto Alfaro-Moreno
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, SE-151 36 Södertälje, Sweden.
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11
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Kang H, Jung HJ, Kim SK, Wong DSH, Lin S, Li G, Dravid VP, Bian L. Magnetic Manipulation of Reversible Nanocaging Controls In Vivo Adhesion and Polarization of Macrophages. ACS NANO 2018; 12:5978-5994. [PMID: 29767957 DOI: 10.1021/acsnano.8b02226] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Macrophages are key immune cells that perform various physiological functions, such as the maintenance of homeostasis, host defense, disease progression, and tissue regeneration. Macrophages adopt distinctly polarized phenotypes, such as pro-inflammatory M1 phenotype or anti-inflammatory (pro-healing) M2 phenotype, to execute disparate functions. The remotely controlled reversible uncaging of bioactive ligands, such as Arg-Gly-Asp (RGD) peptide, is an appealing approach for temporally regulating the adhesion and resultant polarization of macrophages on implants in vivo. Here, we utilize physical and reversible uncaging of RGD by a magnetic field that allows facile tissue penetration. We first conjugated a RGD-bearing gold nanoparticle (GNP) to the substrate and then a magnetic nanocage (MNC) to the GNP via a flexible linker to form the heterodimeric nanostructure. We magnetically manipulated nanoscale displacement of MNC and thus its proximity to the GNP to reversibly uncage and cage RGD. The uncaging of RGD temporally promoted the adhesion and subsequent M2 polarization of macrophages while inhibiting their M1 polarization both in vitro and in vivo. The RGD uncaging-mediated adhesion and M2 polarization of macrophages involved rho-associated protein kinase signaling. This study demonstrates physical and reversible uncaging of RGD to regulate the adhesion and polarization of host macrophages in vivo. This approach of magnetically regulating the heterodimer conformation for physical and reversible uncaging of RGD offers the promising potential to manipulate inflammatory or tissue-regenerative immune responses to the implants in vivo.
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Affiliation(s)
- Heemin Kang
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Ma Liu Shui , Hong Kong, China
| | - Hee Joon Jung
- International Institute for Nanotechnology , Evanston , Illinois 60208 , United States
| | - Sung Kyu Kim
- International Institute for Nanotechnology , Evanston , Illinois 60208 , United States
| | - Dexter Siu Hong Wong
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Ma Liu Shui , Hong Kong, China
| | - Sien Lin
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs , Guangdong Medical University , Zhanjiang , Guangdong 510000 , China
| | - Gang Li
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System , The Chinese University of Hong Kong Shenzhen Research Institute , Shenzhen 518172 , China
| | - Vinayak P Dravid
- International Institute for Nanotechnology , Evanston , Illinois 60208 , United States
| | - Liming Bian
- Department of Biomedical Engineering , The Chinese University of Hong Kong , Ma Liu Shui , Hong Kong, China
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs , Guangdong Medical University , Zhanjiang , Guangdong 510000 , China
- Translational Research Centre of Regenerative Medicine and 3D Printing Technologies of Guangzhou Medical University , The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou , Guangdong 510000 , China
- Shenzhen Research Institute, The Chinese University of Hong Kong , Shenzhen 518172 , China
- China Orthopedic Regenerative Medicine Group (CORMed) , Hangzhou , Zhejiang 310058 , China
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Kang H, Kim S, Wong DSH, Jung HJ, Lin S, Zou K, Li R, Li G, Dravid VP, Bian L. Remote Manipulation of Ligand Nano-Oscillations Regulates Adhesion and Polarization of Macrophages in Vivo. NANO LETTERS 2017; 17:6415-6427. [PMID: 28875707 DOI: 10.1021/acs.nanolett.7b03405] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Macrophages play crucial roles in various immune-related responses, such as host defense, wound healing, disease progression, and tissue regeneration. Macrophages perform distinct and dynamic functions in vivo, depending on their polarization states, such as the pro-inflammatory M1 phenotype and pro-healing M2 phenotype. Remote manipulation of the adhesion of host macrophages to the implants and their subsequent polarization in vivo can be an attractive strategy to control macrophage polarization-specific functions but has rarely been achieved. In this study, we grafted RGD ligand-bearing superparamagnetic iron oxide nanoparticles (SPIONs) to a planar matrix via a long flexible linker. We characterized the nanoscale motion of the RGD-bearing SPIONs grafted to the matrix, in real time by in situ magnetic scanning transmission electron microscopy (STEM) and in situ atomic force microscopy. The magnetic field was applied at various oscillation frequencies to manipulate the frequency-dependent ligand nano-oscillation speeds of the RGD-bearing SPIONs. We demonstrate that a low oscillation frequency of the magnetic field stimulated the adhesion and M2 polarization of macrophages, whereas a high oscillation frequency suppressed the adhesion of macrophages but promoted their M1 polarization, both in vitro and in vivo. Macrophage adhesion was also temporally regulated by switching between the low and high frequencies of the oscillating magnetic field. To the best of our knowledge, this is the first demonstration of the remote manipulation of the adhesion and polarization phenotype of macrophages, both in vitro and in vivo. Our system offers the promising potential to manipulate host immune responses to implanted biomaterials, including inflammation or tissue reparative processes, by regulating macrophage adhesion and polarization.
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Affiliation(s)
| | - Sungkyu Kim
- International Institute for Nanotechnology , Evanston, Illinois 60208, United States
| | | | - Hee Joon Jung
- International Institute for Nanotechnology , Evanston, Illinois 60208, United States
| | | | | | | | | | - Vinayak P Dravid
- International Institute for Nanotechnology , Evanston, Illinois 60208, United States
| | - Liming Bian
- China Orthopedic Regenerative Medicine Group (CORMed) , Hangzhou, China
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