1
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Kim Y, Jahan UM, Deltchev AP, Lavrik N, Reukov V, Minko S. Strategy for Nonenzymatic Harvesting of Cells via Decoupling of Adhesive and Disjoining Domains of Nanostructured Stimulus-Responsive Polymer Films. ACS APPLIED MATERIALS & INTERFACES 2023; 15:49012-49021. [PMID: 37824473 PMCID: PMC10614186 DOI: 10.1021/acsami.3c11296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/28/2023] [Indexed: 10/14/2023]
Abstract
The nanostructured polymer film introduces a novel mechanism of nonenzymatic cell harvesting by decoupling solid cell-adhesive and soft stimulus-responsive cell-disjoining areas on the surface. The key characteristics of this architecture are the decoupling of adhesion from detachment and the impermeability to the integrin protein complex of the adhesive domains. This surface design eliminates inherent limitations of thermoresponsive coatings, namely, the necessity for the precise thickness of the coating, grafting or cross-linking density, and material of the basal substrate. The concept is demonstrated with nanostructured thermoresponsive films made of cell-adhesive epoxy photoresist domains and cell-disjoining poly(N-isopropylacrylamide) brush domains.
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Affiliation(s)
- Yongwook Kim
- Nanostructured
Material Lab, University of Georgia, Athens, Georgia 30602, United States
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
- Lawrence
Livermore National Lab, Livermore, California 94500, United States
| | - Ummay Mowshome Jahan
- Department
of Textiles, Merchandising, and Interiors, University of Georgia, Athens, Georgia 30602, United States
- Department
of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, North Carolina 27606, United States
| | - Alexander Pennef Deltchev
- Nanostructured
Material Lab, University of Georgia, Athens, Georgia 30602, United States
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Nickolay Lavrik
- Center
for Nanophase Materials Sciences, Oak Ridge
National Lab, Oak Ridge, Tennessee 37831, United States
| | - Vladimir Reukov
- Department
of Textiles, Merchandising, and Interiors, University of Georgia, Athens, Georgia 30602, United States
| | - Sergiy Minko
- Nanostructured
Material Lab, University of Georgia, Athens, Georgia 30602, United States
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2
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Schulte A, de Los Santos Pereira A, Pola R, Pop-Georgievski O, Jiang S, Romanenko I, Singh M, Sedláková Z, Schönherr H, Poręba R. On-Demand Cell Sheet Release with Low Density Peptide-Functionalized Non-LCST Polymer Brushes. Macromol Biosci 2023; 23:e2200472. [PMID: 36598869 DOI: 10.1002/mabi.202200472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/16/2022] [Indexed: 01/05/2023]
Abstract
Cell sheet harvesting offers a great potential for the development of new therapies for regenerative medicine. For cells to adhere onto surfaces, proliferate, and to be released on demand, thermoresponsive polymeric coatings are generally considered to be required. Herein, an alternative approach for the cell sheet harvesting and rapid release on demand is reported, circumventing the use of thermoresponsive materials. This approach is based on the end-group biofunctionalization of non-thermoresponsive and antifouling poly(2-hydroxyethyl methacrylate) (p(HEMA)) brushes with cell-adhesive peptide motifs. While the nonfunctionalized p(HEMA) surfaces are cell-repellant, ligation of cell-signaling ligand enables extensive attachment and proliferation of NIH 3T3 fibroblasts until the formation of a confluent cell layer. Remarkably, the formed cell sheets can be released from the surfaces by gentle rinsing with cell-culture medium. The release of the cells is found to be facilitated by low surface density of cell-adhesive peptides, as confirmed by X-ray photoelectron spectroscopy. Additionally, the developed system affords possibility for repeated cell seeding, proliferation, and release on previously used substrates without any additional pretreatment steps. This new approach represents an alternative to thermally triggered cell-sheet harvesting platforms, offering possibility of capture and proliferation of various rare cell lines via appropriate selection of the cell-adhesive ligand.
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Affiliation(s)
- Anna Schulte
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ), Department of Chemistry and Biology University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Andres de Los Santos Pereira
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
| | - Robert Pola
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
| | - Siyu Jiang
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ), Department of Chemistry and Biology University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Iryna Romanenko
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
| | - Manisha Singh
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
| | - Zdeňka Sedláková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
| | - Holger Schönherr
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ), Department of Chemistry and Biology University of Siegen, Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Rafał Poręba
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, Prague, 162 06, Czech Republic
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3
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Meng S, Liu D, Li Y, Dong N, Liu S, Liu C, Li X, You T. Photoelectrochemical and visual dual-mode sensor for efficient detection of Cry1Ab protein based on the proximity hybridization driven specific desorption of multifunctional probe. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129759. [PMID: 36058185 DOI: 10.1016/j.jhazmat.2022.129759] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Currently, the development of sensitive and visual strategy for Cry1Ab detection, particularly using a switchable dual-mode detection system based on a single component, remains a great challenge. Here, a photoelectrochemical (PEC) and visual dual-mode sensor was designed for Cry1Ab detection based on a proximity hybridization driven multifunctional probe. In the presence of Cry1Ab, specific desorption of the antibody-DNA conjugate was achieved via sufficient proximity hybridization, leading to the selective release of the multifunctional signal probe, i.e., antibody-labeled single-stranded DNA-gold nanoparticles (Ab1-S1-AuNPs). The released Ab1-S1-AuNPs reduced the photocurrent signal and produced a colored response, thereby achieving PEC and visual dual-mode detection based on a single component. Owing to the different signal generation mechanisms, two independent signals were obtained simultaneously, which provided self-verification to improve reliability and accuracy. Taking advantage of the PEC sensitive detection and visual prediction, the dual-mode sensor achieved efficient detection of the Cry1Ab protein. The developed sensor was successfully used to determine Cry1Ab in corn, wheat, and soil samples with satisfactory results. This method offers a promising biosensing platform for the on-site detection of Cry1Ab protein.
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Affiliation(s)
- Shuyun Meng
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Dong Liu
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
| | - Yuye Li
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Na Dong
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Shuda Liu
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Chang Liu
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Xia Li
- Department of Chemistry, Liaocheng University, Liaocheng 252059, Shandong, China
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University), Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
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4
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Del Castillo GFD, Kyriakidou M, Adali Z, Xiong K, Hailes RLN, Dahlin A. Electrically Switchable Polymer Brushes for Protein Capture and Release in Biological Environments. Angew Chem Int Ed Engl 2022; 61:e202115745. [PMID: 35289480 PMCID: PMC9311814 DOI: 10.1002/anie.202115745] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Indexed: 12/25/2022]
Abstract
Interfaces functionalized with polymers are known for providing excellent resistance towards biomolecular adsorption and for their ability to bind high amounts of protein while preserving their structure. However, making an interface that switches between these two states has proven challenging and concepts to date rely on changes in the physiochemical environment, which is static in biological systems. Here we present the first interface that can be electrically switched between a high‐capacity (>1 μg cm−2) multilayer protein binding state and a completely non‐fouling state (no detectable adsorption). Switching is possible over multiple cycles without any regeneration. Importantly, switching works even when the interface is in direct contact with biological fluids and a buffered environment. The technology offers many applications such as zero fouling on demand, patterning or separation of proteins as well as controlled release of biologics in a physiological environment, showing high potential for future drug delivery in vivo.
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Affiliation(s)
| | - Maria Kyriakidou
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemigården 4, 41296, Göteborg, Sweden
| | - Zeynep Adali
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemigården 4, 41296, Göteborg, Sweden
| | - Kunli Xiong
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemigården 4, 41296, Göteborg, Sweden
| | - Rebekah L N Hailes
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemigården 4, 41296, Göteborg, Sweden
| | - Andreas Dahlin
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemigården 4, 41296, Göteborg, Sweden
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5
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Lian J, Tang W, Yang Y, Vaidyanathan R, Gonçales VR, Arman SY, Tilley RD, Gooding JJ. A Transparent Semiconducting Surface for Capturing and Releasing Single Cells from a Complex Cell Mixture. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18079-18086. [PMID: 35385656 DOI: 10.1021/acsami.1c23209] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Selective isolation of individual target cells from a heterogeneous population is technically challenging; however, the ability to retrieve single cells can have high significance in various aspects of biological research. Here, we present a new photoelectrochemical surface based on a transparent electrode that is compatible with high-resolution fluorescence microscopy for isolating individual rare cells from complex biological samples. This is underpinned by two important factors: (i) careful design of the electrode by patterning discrete Au disks of micron dimension on amorphous silicon-indium tin oxide films and (ii) orthogonal surface chemistry, which modifies the patterned electrode with self-assembly layers of different functionalities, to selectively capture target cells on the Au disks and resist cell binding to the amorphous silicon surface. The co-stimulation of the surface using light from a microscope and an electric potential triggers the reductive desorption of the alkanethiol monolayer from the Au disks to release the single cells of interest from the illuminated regions only. Using circulating tumor cells as a model, we demonstrate the capture of cancer cells on an antibody-coated surface and selective release of single cancer cells with low expression of epithelial cell adhesion molecules.
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Affiliation(s)
- Jiaxin Lian
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Wenxian Tang
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Ying Yang
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Ramanathan Vaidyanathan
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Vinicius R Gonçales
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Seyed Yousef Arman
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Richard D Tilley
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
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6
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Castillo GF, Kyriakidou M, Adali Z, Xiong K, Hailes RLN, Dahlin A. Electrically Switchable Polymer Brushes for Protein Capture and Release in Biological Environments**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gustav Ferrand‐Drake Castillo
- Department of Chemistry and Chemical Engineering Chalmers University of Technology Kemigården 4 41296 Göteborg Sweden
| | - Maria Kyriakidou
- Department of Chemistry and Chemical Engineering Chalmers University of Technology Kemigården 4 41296 Göteborg Sweden
| | - Zeynep Adali
- Department of Chemistry and Chemical Engineering Chalmers University of Technology Kemigården 4 41296 Göteborg Sweden
| | - Kunli Xiong
- Department of Chemistry and Chemical Engineering Chalmers University of Technology Kemigården 4 41296 Göteborg Sweden
| | - Rebekah L. N. Hailes
- Department of Chemistry and Chemical Engineering Chalmers University of Technology Kemigården 4 41296 Göteborg Sweden
| | - Andreas Dahlin
- Department of Chemistry and Chemical Engineering Chalmers University of Technology Kemigården 4 41296 Göteborg Sweden
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7
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Kelp G, Li J, Lu J, DiNapoli N, Delgado R, Liu C, Fan D, Dutta-Gupta S, Shvets G. Infrared spectroscopy of live cells from a flowing solution using electrically-biased plasmonic metasurfaces. LAB ON A CHIP 2020; 20:2136-2153. [PMID: 32406430 DOI: 10.1039/c9lc01054h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Spectral cytopathology (SCP) is a promising label-free technique for diagnosing diseases and monitoring therapeutic outcomes using FTIR spectroscopy. In most cases, cells must be immobilized on a substrate prior to spectroscopic interrogation. This creates significant limitations for high throughput phenotypic whole-cell analysis, especially for the non-adherent cells. Here we demonstrate how metasurface-enhanced infrared reflection spectroscopy (MEIRS) can be applied to a continuous flow of live cell solution by applying AC voltage to metallic metasurfaces. By integrating metasurfaces with microfluidic delivery channels and attracting the cells to the metasurface via dielectrophoretic (DEP) force, we collect the infrared spectra of cells in real time within a minute, and correlate the spectra with simultaneously acquired images of the attracted cells. The resulting DEP-MEIRS technique paves the way for rapid SCP of complex cell-containing body fluids with low cell concentrations, and for the development of a wide range of label-free liquid biopsies.
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Affiliation(s)
- Glen Kelp
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
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8
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Zhang Q, Wang W, Huang S, Yu S, Tan T, Zhang JR, Zhu JJ. Capture and selective release of multiple types of circulating tumor cells using smart DNAzyme probes. Chem Sci 2020; 11:1948-1956. [PMID: 34123289 PMCID: PMC8148068 DOI: 10.1039/c9sc04309h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/06/2020] [Indexed: 12/11/2022] Open
Abstract
The effective capture, release and reanalysis of circulating tumor cells (CTCs) are of great significance to acquire tumor information and promote the progress of tumor therapy. Particularly, the selective release of multiple types of CTCs is critical to further study; however, it is still a great challenge. To meet this challenge, we designed a smart DNAzyme probe-based platform. By combining multiple targeting aptamers and multiple metal ion responsive DNAzymes, efficient capture and selective release of multiple types CTCs were realized. Sgc8c aptamer integrated Cu2+-dependent DNAzyme and TD05 aptamer integrated Mg2+-dependent DNAzyme can capture CCRF-CEM cells and Ramos cells respectively on the substrate. With the addition of Cu2+ or Mg2+, CCRF-CEM cells or Ramos cells will be released from the substrate with specific selectivity. Furthermore, our platform has been successfully demonstrated in the whole blood sample. Therefore, our capture/release platform will benefit research on the molecular analysis of CTCs after release and has great potential for cancer diagnosis and individualized treatment.
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Affiliation(s)
- Qianying Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Wenjing Wang
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University Wuhan 430070 China
| | - Shan Huang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Sha Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Tingting Tan
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008 China
| | - Jian-Rong Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
- School of Chemistry and Life Science, Nanjing University Jinling College Nanjing 210089 China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
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9
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Xie W, Yin T, Chen YL, Zhu DM, Zan MH, Chen B, Ji LW, Chen L, Guo SS, Huang HM, Zhao XZ, Wang Y, Wu Y, Liu W. Capture and "self-release" of circulating tumor cells using metal-organic framework materials. NANOSCALE 2019; 11:8293-8303. [PMID: 30977474 DOI: 10.1039/c8nr09071h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Capturing circulating tumor cells (CTCs) from peripheral blood for subsequent analyses has shown potential in precision medicine for cancer patients. Broad as the prospect is, there are still some challenges that hamper its clinical applications. One of the challenges is to maintain the viability of the captured cells during the capturing and releasing processes. Herein, we have described a composite material that could encapsulate a magnetic Fe3O4 core in a MIL-100 shell (MMs), which could respond to pH changes and modify the anti-EpCAM antibody (anti-EpCAM-MMs) on the surface of MIL-100. After the anti-EpCAM-MMs captured the cells, there was no need for additional conditions but with the acidic environment during the cell culture process, MIL-100 could realize automatic degradation, leading to cell self-release. This self-release model could not only improve the cell viability, but could also reduce the steps of the release process and save human and material resources simultaneously. In addition, we combined clinical patients' case diagnosis with the DNA sequencing and next generation of RNA sequencing technologies in the hope of precision medicine for patients in the future.
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Affiliation(s)
- Wei Xie
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China.
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10
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Zhang M, Xu B, Siehr A, Shen W. Efficient release of immunocaptured cells using coiled-coils in a microfluidic device. RSC Adv 2019; 9:29182-29189. [PMID: 35528412 PMCID: PMC9071837 DOI: 10.1039/c9ra03871j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 09/06/2019] [Indexed: 12/23/2022] Open
Abstract
Label-free and affinity-based cell separation allows highly specific cell capture through simple procedures, but it remains a major challenge to efficiently release the captured cells without changing their structure, phenotype, and function. We report a microfluidic platform for label-free immunocapture of target cells and efficient release of the cells with minimal biochemical and biophysical perturbations. The method capitalizes on self-assembly of a pair of heterodimerizing coiled-coils, A and B. Target cells are captured in microchannels functionalized with an antibody and A and efficiently released by a liquid flow containing B-PEG (a conjugate of B and polyethylene glycol) at a controlled, low shear stress. The released cells have no antibodies attached or endogenous surface molecules cleaved. In a model system, human umbilical vein endothelial cells (HUVECs) were isolated from a mixture of HUVECs and human ovarian carcinoma cells. The capture selectivity, capture capacity, and release efficiency were 96.3% ± 1.8%, 10 735 ± 1897 cells per cm2, and 92.5% ± 3.8%, respectively, when the flow was operated at a shear stress of 1 dyn cm−2. The method can be readily adapted for isolation of any cells that are recognizable by a commercially available antibody, and B-PEG is a universal cell-releasing trigger. We report a microfluidic platform capable of isolating target cells from heterogeneous cell populations through highly specific immunocapture and efficiently releasing the captured cells with minimal biochemical and biophysical perturbations.![]()
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Affiliation(s)
- Mengen Zhang
- Department of Biomedical Engineering
- University of Minnesota
- Minneapolis
- USA
| | - Bin Xu
- Department of Biomedical Engineering
- University of Minnesota
- Minneapolis
- USA
| | - Allison Siehr
- Department of Biomedical Engineering
- University of Minnesota
- Minneapolis
- USA
| | - Wei Shen
- Department of Biomedical Engineering
- University of Minnesota
- Minneapolis
- USA
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11
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Zhai TT, Ye D, Zhang QW, Wu ZQ, Xia XH. Highly Efficient Capture and Electrochemical Release of Circulating Tumor Cells by Using Aptamers Modified Gold Nanowire Arrays. ACS APPLIED MATERIALS & INTERFACES 2017; 9:34706-34714. [PMID: 28925689 DOI: 10.1021/acsami.7b11107] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effective capture and release of circulating tumor cells (CTCs) is of significant importance in cancer prognose and treatment. Here we report a highly efficient method to capture and release human leukemic lymphoblasts (CCRF-CEM) using aptamers modified gold nanowire arrays (AuNWs). The gold nanowires, showing tunable morphologies from relatively random pillar deposit to relatively uniform arrays, were fabricated by electrochemical deposition using anodic aluminum oxide (AAO) as template. Upon simply being modified with aptamers by Au-S chemistry, the AuNWs exhibit higher specificity to target cells. Also compared to flat gold substrate, the AuNWs with nanostructure can capture target cells with much higher capture yield. Moreover, the captured CCRF-CEM cells can be released from AuNWs efficiently with little damage through an electrochemical desorption process. We predict that our strategy has great potential in providing a simple and economical platform for CTCs isolation, cancer diagnosis, and therapy.
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Affiliation(s)
- Ting-Ting Zhai
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Dekai Ye
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Qian-Wen Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Zeng-Qiang Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China
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12
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Zhang M, Shen W. Efficient Release of Affinity-Captured Cells Using a Coiled-Coil-Based Molecular Trigger. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 08/30/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Mengen Zhang
- Department of Biomedical Engineering; University of Minnesota; Minneapolis MN 55455 USA
| | - Wei Shen
- Department of Biomedical Engineering; University of Minnesota; Minneapolis MN 55455 USA
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13
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Szymonik M, Davies AG, Wälti C. DNA self-assembly-driven positioning of molecular components on nanopatterned surfaces. NANOTECHNOLOGY 2016; 27:395301. [PMID: 27559837 DOI: 10.1088/0957-4484/27/39/395301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present a method for the specific, spatially targeted attachment of DNA molecules to lithographically patterned gold surfaces-demonstrated by bridging DNA strands across nanogap electrode structures. An alkanethiol self-assembled monolayer was employed as a molecular resist, which could be selectively removed via electrochemical desorption, allowing the binding of thiolated DNA anchoring oligonucleotides to each electrode. After introducing a bridging DNA molecule with single-stranded ends complementary to the electrode-tethered anchoring oligonucleotides, the positioning of the DNA molecule across the electrode gap, driven by self-assembly, occurred autonomously. This demonstrates control of molecule positioning with resolution limited only by the underlying patterned structure, does not require any alignment, is carried out entirely under biologically compatible conditions, and is scalable.
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Affiliation(s)
- M Szymonik
- School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK
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14
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Lv SW, Liu Y, Xie M, Wang J, Yan XW, Li Z, Dong WG, Huang WH. Near-Infrared Light-Responsive Hydrogel for Specific Recognition and Photothermal Site-Release of Circulating Tumor Cells. ACS NANO 2016; 10:6201-10. [PMID: 27299807 DOI: 10.1021/acsnano.6b02208] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Isolation of single circulating tumor cells (CTCs) from patients is a very challenging technique that may promote the process of individualized antitumor therapies. However, there exist few systems capable of highly efficient capture and release of single CTCs with high viability for downstream analysis and culture. Herein, we designed a near-infrared (NIR) light-responsive substrate for highly efficient immunocapture and biocompatible site-release of CTCs by a combination of the photothermal effect of gold nanorods (GNRs) and a thermoresponsive hydrogel. The substrate was fabricated by imprinting target cancer cells on a GNR-pre-embedded gelatin hydrogel. Micro/nanostructures generated by cell imprinting produce artificial receptors for cancer cells to improve capture efficiency. Temperature-responsive gelatin dissolves rapidly at 37 °C; this allows bulk recovery of captured CTCs at physiological temperature or site-specific release of single CTCs by NIR-mediated photothermal activation of embedded GNRs. Furthermore, the system has been applied to capture, individually release, and genetically analyze CTCs from the whole blood of cancer patients. The multifunctional NIR-responsive platform demonstrates excellent performance in capture and site-release of CTCs with high viability, which provides a robust and versatile means toward individualized antitumor therapies and also shows promising potential for dynamically manipulating cell-substrate interactions in vitro.
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Affiliation(s)
- Song-Wei Lv
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Ya Liu
- Renmin Hospital of Wuhan University , Wuhan 430060, China
| | - Min Xie
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Jing Wang
- Renmin Hospital of Wuhan University , Wuhan 430060, China
| | - Xue-Wei Yan
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Zhen Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
| | - Wei-Guo Dong
- Renmin Hospital of Wuhan University , Wuhan 430060, China
| | - Wei-Hua Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, China
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15
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Quantifying Molecular-Level Cell Adhesion on Electroactive Conducting Polymers using Electrochemical-Single Cell Force Spectroscopy. Sci Rep 2015; 5:13334. [PMID: 26335299 PMCID: PMC4558606 DOI: 10.1038/srep13334] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 07/21/2015] [Indexed: 01/28/2023] Open
Abstract
Single Cell Force Spectroscopy was combined with Electrochemical-AFM to quantify the adhesion between live single cells and conducting polymers whilst simultaneously applying a voltage to electrically switch the polymer from oxidized to reduced states. The cell-conducting polymer adhesion represents the non-specific interaction between cell surface glycocalyx molecules and polymer groups such as sulfonate and dodecylbenzene groups, which rearrange their orientation during electrical switching. Single cell adhesion significantly increases as the polymer is switched from an oxidized to fully reduced state, indicating stronger cell binding to sulfonate groups as opposed to hydrophobic groups. This increase in single cell adhesion is concomitant with an increase in surface hydrophilicity and uptake of cell media, driven by cation movement, into the polymer film during electrochemical reduction. Binding forces between the glycocalyx and polymer surface are indicative of molecular-level interactions and during electrical stimulation there is a decrease in both the binding force and stiffness of the adhesive bonds. The study provides insight into the effects of electrochemical switching on cell adhesion at the cell-conducting polymer interface and is more broadly applicable to elucidating the binding of cell adhesion molecules in the presence of electrical fields and directly at electrode interfaces.
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Abstract
Biosensors first appeared several decades ago to address the need for monitoring physiological parameters such as oxygen or glucose in biological fluids such as blood. More recently, a new wave of biosensors has emerged in order to provide more nuanced and granular information about the composition and function of living cells. Such biosensors exist at the confluence of technology and medicine and often strive to connect cell phenotype or function to physiological or pathophysiological processes. Our review aims to describe some of the key technological aspects of biosensors being developed for cell analysis. The technological aspects covered in our review include biorecognition elements used for biosensor construction, methods for integrating cells with biosensors, approaches to single-cell analysis, and the use of nanostructured biosensors for cell analysis. Our hope is that the spectrum of possibilities for cell analysis described in this review may pique the interest of biomedical scientists and engineers and may spur new collaborations in the area of using biosensors for cell analysis.
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Affiliation(s)
- Qing Zhou
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| | - Kyungjin Son
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| | - Ying Liu
- Department of Biomedical Engineering, University of California, Davis, California 95616;
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California, Davis, California 95616;
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17
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Lv SW, Wang J, Xie M, Lu NN, Li Z, Yan XW, Cai SL, Zhang PA, Dong WG, Huang WH. Photoresponsive immunomagnetic nanocarrier for capture and release of rare circulating tumor cells. Chem Sci 2015; 6:6432-6438. [PMID: 28757959 PMCID: PMC5507187 DOI: 10.1039/c5sc01380a] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/29/2015] [Indexed: 12/21/2022] Open
Abstract
7-Aminocoumarin compound was synthesized and used as phototrigger to cage EpCAM-antibody to construct a photocontrolled CTCs capture and release system.
Isolation, release and culture of rare circulating tumor cells (CTCs) may, if implemented, promote the progress of individualized anti-tumor therapies. To realize the release of CTCs without disruption of their viability for further culture and analysis, we designed an effective photocontrolled CTC capture/release system by combination of photochemistry and immunomagnetic separation. 7-Aminocoumarin was synthesized as the phototrigger to bridge the connection between the anti-EpCAM antibody and the magnetic beads. The coumarin moieties produced cleavage of a C–O bond under both ultraviolet (UV) and near-infrared (NIR) light illumination, breaking the bridge and releasing CTCs from the immunomagnetic beads. Compared with conventional immunomagnetic separation systems, the negative influence of absorbed immunomagnetic beads on further CTCs culture and analysis was effectively eliminated. The system can specifically recognize 102 MCF-7 cells in 1 mL of human whole blood samples with 90% efficiency and 85% purity. Under the irradiation of UV and NIR light, 73 ± 4% and 52 ± 6% of captured cells were released with a viability of 90% and 97%, respectively. Furthermore, this technique has been used to detect CTCs from whole blood of cancer patients with high purity. This study demonstrates that the photochemical-based immunomagnetic separation method for isolating, releasing and culturing CTCs from clinic patients may provide new opportunities for cancer diagnosis and personalized therapy.
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Affiliation(s)
- Song-Wei Lv
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
| | - Jing Wang
- Department of Gastroenterology , Renmin Hospital of Wuhan University , Wuhan 430060 , China .
| | - Min Xie
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
| | - Ning-Ning Lu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
| | - Zhen Li
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
| | - Xue-Wei Yan
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
| | - Si-Liang Cai
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
| | - Ping-An Zhang
- Department of Clinical Laboratory , Renmin Hospital of Wuhan University , Wuhan 430060 , China
| | - Wei-Guo Dong
- Department of Gastroenterology , Renmin Hospital of Wuhan University , Wuhan 430060 , China .
| | - Wei-Hua Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China . ; ; Tel: +86-27-68752149
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18
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Sequence-specific nuclease-mediated release of cells tethered by oligonucleotide phospholipids. Biomaterials 2015; 53:318-29. [PMID: 25890730 DOI: 10.1016/j.biomaterials.2015.02.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/09/2015] [Accepted: 02/13/2015] [Indexed: 11/23/2022]
Abstract
Single-stranded oligonucleotide-conjugated lipids (ssDNA-PEG-lipids) that associate with the cell membrane confer to the cell an artificial adhesive capability via sequence-specific hybridization to complementary oligonucleotides, forming bonds of double stranded oligonucleotides (dsDNA). Such artificial tethers permit surface patterning of cells or controlled formation of cellular aggregates. However, the hybridization responsible for tethering cells to surfaces or to other cells is not trivially reversed under physiological conditions. In this study, we approach the unbinding of tethered cells by cleaving dsDNA bonds with restriction endonuclease BamHI or digesting bonds with the nonspecific nuclease Benzonase. The procedure was applied to CCRF-CEM cells bearing dsDNA suspended in isolation, cells tethered to glass substrates, and cells aggregated heterotypically with other ssDNA-bearing cells. Cells liberated from surfaces with BamHI could be flushed from flow chambers and viably recovered while the majority of cells not bearing enzyme recognition sequences were retained on the surface, and DNA-tethered cells could be nonspecifically recovered viably from surfaces after Benzonase treatment. Heterotypic aggregates of cells joined by recognition sequence DNA could be dispersed with 10 min exposure to BamHI while undispersed cells heterotypically aggregated with a control sequence remained. Likewise, 10 min exposure to Benzonase was sufficient to disperse aggregates independently of sequence. The potential to undo artificially engineered DNA-mediated adhesion offers new possibilities in the controlled arrangement of cells relative to other cells and in the study of membrane biophysics.
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19
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Son KJ, Shin DS, Kwa T, You J, Gao Y, Revzin A. A microsystem integrating photodegradable hydrogel microstructures and reconfigurable microfluidics for single-cell analysis and retrieval. LAB ON A CHIP 2015; 15:637-641. [PMID: 25421651 DOI: 10.1039/c4lc00884g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We developed a micropatterned photodegradable hydrogel array integrated with reconfigurable microfluidics to enable cell secretion analysis and cell retrieval at the single-cell level. The activity of protease molecules secreted from single cells was monitored using FRET peptides entrapped inside microfabricated compartments. Antibody-modified gel islands tethering cells to the surface could be degraded by UV exposure to release specific single cells of interest.
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Affiliation(s)
- Kyung Jin Son
- Department of Biomedical Engineering, University of California, Davis, USA.
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20
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Plouffe BD, Murthy SK, Lewis LH. Fundamentals and application of magnetic particles in cell isolation and enrichment: a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2015; 78:016601. [PMID: 25471081 PMCID: PMC4310825 DOI: 10.1088/0034-4885/78/1/016601] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Magnetic sorting using magnetic beads has become a routine methodology for the separation of key cell populations from biological suspensions. Due to the inherent ability of magnets to provide forces at a distance, magnetic cell manipulation is now a standardized process step in numerous processes in tissue engineering, medicine, and in fundamental biological research. Herein we review the current status of magnetic particles to enable isolation and separation of cells, with a strong focus on the fundamental governing physical phenomena, properties and syntheses of magnetic particles and on current applications of magnet-based cell separation in laboratory and clinical settings. We highlight the contribution of cell separation to biomedical research and medicine and detail modern cell-separation methods (both magnetic and non-magnetic). In addition to a review of the current state-of-the-art in magnet-based cell sorting, we discuss current challenges and available opportunities for further research, development and commercialization of magnetic particle-based cell-separation systems.
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Affiliation(s)
- Brian D Plouffe
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA. The Barnett Institute of Chemical and Biological Analysis, Northeastern University, Boston, MA 02115, USA
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21
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Huang Q, Chen B, He R, He Z, Cai B, Xu J, Qian W, Chan HL, Liu W, Guo S, Zhao XZ, Yuan J. Capture and release of cancer cells based on sacrificeable transparent MnO2 nanospheres thin film. Adv Healthc Mater 2014; 3:1420-5. [PMID: 24652776 DOI: 10.1002/adhm.201300670] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/06/2014] [Indexed: 01/16/2023]
Abstract
A CTCs detection assay using transparent MnO2 nanospheres thin films to capture and release of CTCs is reported. The enhanced local topography interaction between extracellular matrix scaffolds and the antibody-coated substrate leads to improved capture efficiency. CTCs captured from artificial blood sample can be cultured and released, represent a new functional material capable of CTCs isolation and culture for subsequent studies.
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Affiliation(s)
- Qinqin Huang
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Bolei Chen
- Department of Applied Physics; The Hong Kong Polytechnic University; Hong Kong
| | - Rongxiang He
- Institute for Interdisciplinary Research; Jianghan University; Wuhan 430056 China
| | - Zhaobo He
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Bo Cai
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Junhua Xu
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Weiyi Qian
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Helen Laiwa Chan
- Department of Applied Physics; The Hong Kong Polytechnic University; Hong Kong
| | - Wei Liu
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Shishang Guo
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Xing-Zhong Zhao
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education; School of Physics and Technology; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Jikang Yuan
- Department of Applied Physics; The Hong Kong Polytechnic University; Hong Kong
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22
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Law JKY, Susloparova A, Vu XT, Zhou X, Hempel F, Qu B, Hoth M, Ingebrandt S. Human T cells monitored by impedance spectrometry using field-effect transistor arrays: a novel tool for single-cell adhesion and migration studies. Biosens Bioelectron 2014; 67:170-6. [PMID: 25155061 DOI: 10.1016/j.bios.2014.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 08/04/2014] [Accepted: 08/06/2014] [Indexed: 01/08/2023]
Abstract
Cytotoxic T lymphocytes (CTLs) play an important role in the immune system by recognizing and eliminating pathogen-infected and tumorigenic cells. In order to achieve their function, T cells have to migrate throughout the whole body and identify the respective targets. In conventional immunology studies, interactions between CTLs and targets are usually investigated using tedious and time-consuming immunofluorescence imaging. However, there is currently no straightforward measurement tool available to examine the interaction strengths. In the present study, adhesion strengths and migration of single human CD8(+) T cells on pre-coated field-effect transistor (FET) devices (i.e. fibronectin, anti-CD3 antibody, and anti-LFA-1 antibody) were measured using impedance spectroscopy. Adhesion strengths to different protein and antibody coatings were compared. By fitting the data to an electronically equivalent circuit model, cell-related parameters (cell membrane capacitance referring to cell morphology and seal resistance referring to adhesion strength) were obtained. This electronically-assessed adhesion strength provides a novel, fast, and important index describing the interaction efficiency. Furthermore, the size of our detection transistor gates as well as their sensitivity reaches down to single cell resolution. Real-time motions of individually migrating T cells can be traced using our FET devices. The in-house fabricated FETs used in the present study are providing a novel and very efficient insight to individual cell interactions.
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Affiliation(s)
- Jessica Ka Yan Law
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany.
| | - Anna Susloparova
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Xuan Thang Vu
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Xiao Zhou
- Department of Biophysics, Saarland University, Faculty of Medicine, Homburg, Germany
| | - Felix Hempel
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
| | - Bin Qu
- Department of Biophysics, Saarland University, Faculty of Medicine, Homburg, Germany
| | - Markus Hoth
- Department of Biophysics, Saarland University, Faculty of Medicine, Homburg, Germany
| | - Sven Ingebrandt
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany
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23
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Shin DS, You J, Rahimian A, Vu T, Siltanen C, Ehsanipour A, Stybayeva G, Sutcliffe J, Revzin A. Photodegradable hydrogels for capture, detection, and release of live cells. Angew Chem Int Ed Engl 2014; 53:8221-4. [PMID: 24931301 PMCID: PMC4380505 DOI: 10.1002/anie.201404323] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 12/29/2022]
Abstract
Cells may be captured and released using a photodegradable hydrogel (photogel) functionalized with antibodies. Photogel substrates were used to first isolate human CD4 or CD8 T-cells from a heterogeneous cell suspension and then to release desired cells or groups of cells by UV-induced photodegradation. Flow cytometry analysis of the retrieved cells revealed approximately 95% purity of CD4 and CD8 T-cells, suggesting that this substrate had excellent specificity. To demonstrate the possibility of sorting cells according to their function, photogel substrates that were functionalized with anti-CD4 and anti-TNF-α antibodies were prepared. Single cells captured and stimulated on such substrates were identified by the fluorescence "halo" after immunofluorescent staining and could be retrieved by site-specific exposure to UV light through a microscope objective. Overall, it was demonstrated that functional photodegradable hydrogels enable the capture, analysis, and sorting of live cells.
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Affiliation(s)
- Dong-Sik Shin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Jungmok You
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Ali Rahimian
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Tam Vu
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Christian Siltanen
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Arshia Ehsanipour
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Gulnaz Stybayeva
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Julie Sutcliffe
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
- Division of Hematology/Oncology, Department of Internal Medicine, Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA 95616 (USA)
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
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24
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Leroy L, Bombera R, Engel E, Calemczuk R, Laplatine L, Baganizi DDR, Marche PN, Roupioz Y, Livache T. Photothermal effect for localized desorption of primary lymphocytes arrayed on an antibody/DNA-based biochip. LAB ON A CHIP 2014; 14:1987-1990. [PMID: 24789691 DOI: 10.1039/c4lc00336e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work proposes a miniaturized system able to perform multiple cell capture followed by cell-type selective release from a biochip surface. Unlabelled lymphocytes were first specifically captured onto a DNA array by antibody-DNA conjugates. The immobilized cells were subsequently released under spatiotemporal control within local heating generated by intense Surface Plasmon Resonance (SPR) produced by laser illumination.
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Affiliation(s)
- Loïc Leroy
- Univ. Grenoble Alpes, CNRS and CEA, INAC-SPRAM, F-38000 Grenoble, France.
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25
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Shin DS, You J, Rahimian A, Vu T, Siltanen C, Ehsanipour A, Stybayeva G, Sutcliffe J, Revzin A. Photodegradable Hydrogels for Capture, Detection, and Release of Live Cells. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Gooding JJ, Parker SG, Lu Y, Gaus K. Molecularly engineered surfaces for cell biology: from static to dynamic surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3290-3302. [PMID: 24228944 DOI: 10.1021/la4037919] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Surfaces with a well-defined presentation of ligands for receptors on the cell membrane can serve as models of the extracellular matrix for studying cell adhesion or as model cell surfaces for exploring cell-cell contacts. Because such surfaces can provide exquisite control over, for example, the density of these ligands or when the ligands are presented to the cell, they provide a very precise strategy for understanding the mechanisms by which cells respond to external adhesive cues. In the present feature article, we present an overview of the basic biology of cell adhesion before discussing surfaces that have a static presentation of immobile ligands. We outline the biological information that such surfaces have given us, before progressing to recently developed switchable surfaces and surfaces that mimic the lipid bilayer, having adhesive ligands that can move around the membrane and be remodeled by the cell. Finally, the feature article closes with some of the biological information that these new types of surfaces could provide.
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Affiliation(s)
- J Justin Gooding
- The Australian Centre for NanoMedicine, ‡School of Chemistry, and §Centre for Vascular Research, The University of New South Wales , Sydney 2052, Australia
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27
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Damhorst GL, Watkins NN, Bashir R. Micro- and nanotechnology for HIV/AIDS diagnostics in resource-limited settings. IEEE Trans Biomed Eng 2013; 60:715-26. [PMID: 23512111 DOI: 10.1109/tbme.2013.2244894] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Thirty-four million people are living with HIV worldwide, a disproportionate number of whom live in resource-limited settings. Proper clinical management of AIDS, the disease caused by HIV, requires regular monitoring of both the status of the host's immune system and levels of the virus in their blood. Therefore, more accessible technologies capable of performing a CD4+ T cell count and HIV viral load measurement in settings where HIV is most prevalent are desperately needed to enable better treatment strategies and ultimately quell the spread of the virus within populations. This review discusses micro- and nanotechnology solutions to performing these key clinical measurements in resource-limited settings.
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Affiliation(s)
- Gregory L Damhorst
- Department of Bioengineering and the Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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28
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Cell detachment: Post-isolation challenges. Biotechnol Adv 2013; 31:1664-75. [DOI: 10.1016/j.biotechadv.2013.08.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 08/17/2013] [Accepted: 08/17/2013] [Indexed: 12/16/2022]
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29
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Siltanen C, Shin DS, Sutcliffe J, Revzin A. Micropatterned photodegradable hydrogels for the sorting of microbeads and cells. Angew Chem Int Ed Engl 2013; 52:9224-8. [PMID: 23868693 PMCID: PMC4370904 DOI: 10.1002/anie.201303965] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Indexed: 01/03/2023]
Affiliation(s)
- Christian Siltanen
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Dong-Sik Shin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Julie Sutcliffe
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
- Division of Hematology/Oncology, Department of Internal Medicine, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616 (USA)
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
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30
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Leal-Egaña A, Díaz-Cuenca A, Boccaccini AR. Tuning of cell-biomaterial anchorage for tissue regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4049-4057. [PMID: 24063035 DOI: 10.1002/adma.201301227] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Which mechanisms mediate cell attachment to biomaterials? What role does the surface charge or wettability play on cell-material anchorage? What are the currently investigated strategies to modify cell-matrix adherence spatiotemporally? Considering the development of scaffolds made of biocompatible materials to temporarily replace the structure and/or function of the extracellular matrix, focus is given to the analysis of the specific (i.e., cell adhesive peptide sequences) and unspecific (i.e., surface charge, wettability) mechanisms mediating cell-matrix interactions. Furthermore, because natural tissue regeneration is characterized by the dynamic attachment/detachment of different cell populations, the design of advanced scaffolds for tissue engineering, based in the spatiotemporal tuning of cell-matrix anchorage is discussed.
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Affiliation(s)
- Aldo Leal-Egaña
- Institute of Biomaterials, Friedrich-Alexander Universität Erlangen Nürnberg, Cauerstraße 6, 91058 Erlangen, Germany.
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Wang L, Asghar W, Demirci U, Wan Y. Nanostructured substrates for isolation of circulating tumor cells. NANO TODAY 2013; 8:347-387. [PMID: 24944563 PMCID: PMC4059613 DOI: 10.1016/j.nantod.2013.07.001] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Circulating tumor cells (CTCs) originate from the primary tumor mass and enter into the peripheral bloodstream. CTCs hold the key to understanding the biology of metastasis and also play a vital role in cancer diagnosis, prognosis, disease monitoring, and personalized therapy. However, CTCs are rare in blood and hard to isolate. Additionally, the viability of CTCs can easily be compromised under high shear stress while releasing them from a surface. The heterogeneity of CTCs in biomarker expression makes their isolation quite challenging; the isolation efficiency and specificity of current approaches need to be improved. Nanostructured substrates have emerged as a promising biosensing platform since they provide better isolation sensitivity at the cost of specificity for CTC isolation. This review discusses major challenges faced by CTC isolation techniques and focuses on nanostructured substrates as a platform for CTC isolation.
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Affiliation(s)
- Lixue Wang
- Department of Oncology, The Second Affiliated Hospital of Southeast University, Southeast University, Nanjing, Jiangsu 210003, PR China
| | - Waseem Asghar
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratories, Center for Biomedical Engineering, Renal Division and Division of Infectious Diseases, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Utkan Demirci
- Bio-Acoustic MEMS in Medicine (BAMM) Laboratories, Center for Biomedical Engineering, Renal Division and Division of Infectious Diseases, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Harvard-Massachusetts Institute of Technology (MIT), Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Yuan Wan
- Department of Oncology, The Second Affiliated Hospital of Southeast University, Southeast University, Nanjing, Jiangsu 210003, PR China
- Ian Wark Research Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia
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Siltanen C, Shin D, Sutcliffe J, Revzin A. Micropatterned Photodegradable Hydrogels for the Sorting of Microbeads and Cells. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303965] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christian Siltanen
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Dong‐Sik Shin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
| | - Julie Sutcliffe
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
- Division of Hematology/Oncology, Department of Internal Medicine, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616 (USA)
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California Davis, One Shields Ave, Davis, CA 95616 (USA)
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Liu J, Bombera R, Leroy L, Roupioz Y, Baganizi DR, Marche PN, Haguet V, Mailley P, Livache T. Selective individual primary cell capture using locally bio-functionalized micropores. PLoS One 2013; 8:e57717. [PMID: 23469221 PMCID: PMC3585871 DOI: 10.1371/journal.pone.0057717] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 01/24/2013] [Indexed: 12/12/2022] Open
Abstract
Background Solid-state micropores have been widely employed for 6 decades to recognize and size flowing unlabeled cells. However, the resistive-pulse technique presents limitations when the cells to be differentiated have overlapping dimension ranges such as B and T lymphocytes. An alternative approach would be to specifically capture cells by solid-state micropores. Here, the inner wall of 15-µm pores made in 10 µm-thick silicon membranes was covered with antibodies specific to cell surface proteins of B or T lymphocytes. The selective trapping of individual unlabeled cells in a bio-functionalized micropore makes them recognizable just using optical microscopy. Methodology/Principal Findings We locally deposited oligodeoxynucleotide (ODN) and ODN-conjugated antibody probes on the inner wall of the micropores by forming thin films of polypyrrole-ODN copolymers using contactless electro-functionalization. The trapping capabilities of the bio-functionalized micropores were validated using optical microscopy and the resistive-pulse technique by selectively capturing polystyrene microbeads coated with complementary ODN. B or T lymphocytes from a mouse splenocyte suspension were specifically immobilized on micropore walls functionalized with complementary ODN-conjugated antibodies targeting cell surface proteins. Conclusions/Significance The results showed that locally bio-functionalized micropores can isolate target cells from a suspension during their translocation throughout the pore, including among cells of similar dimensions in complex mixtures.
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Affiliation(s)
- Jie Liu
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
| | - Radoslaw Bombera
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
| | - Loïc Leroy
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
| | - Yoann Roupioz
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
| | - Dieudonné R. Baganizi
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
- Institut Albert Bonniot, U823 INSERM/UJF, La Tronche, France
| | | | - Vincent Haguet
- Institut de Recherches en Technologies et Sciences pour le Vivant, U1038 CEA/Inserm/UJF, Grenoble, France
| | - Pascal Mailley
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
| | - Thierry Livache
- Institut Nanosciences et Cryogénie, UMR5819 CEA/CNRS/UJF, Grenoble, France
- * E-mail:
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Matharu Z, Enomoto J, Revzin A. Miniature enzyme-based electrodes for detection of hydrogen peroxide release from alcohol-injured hepatocytes. Anal Chem 2012; 85:932-9. [PMID: 23163580 DOI: 10.1021/ac3025619] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Alcohol insult to the liver sets off a complex sequence of inflammatory and fibrogenic responses. There is increasing evidence that hepatocytes play a key role in triggering these responses by producing inflammatory signals such as cytokines and reactive oxygen species (ROS). In the present study, we employed a cell culture/biosensor platform consisting of electrode arrays integrated with microfluidics to monitor extracellular H(2)O(2), one of the major ROS types, produced by primary rat hepatocytes during alcohol injury. The biosensor consisted of hydrogel microstructures with entrapped horseradish peroxidase (HRP) immobilized on an array of miniature gold electrodes. These arrays of sensing electrodes were integrated into microfluidic devices and modified with collagen (I) to promote hepatocyte adhesion. Once seeded into the microfluidic devices, hepatocytes were exposed to 100 mM ethanol and the signal at the working electrode was monitored by cyclic voltammetry (CV) over the course of 4 h. The CV experiments revealed that hepatocytes secreted up to 1.16 μM H(2)O(2) after 3 h of stimulation. Importantly, when hepatocytes were incubated with antioxidants or alcohol dehydrogenase inhibitor prior to alcohol exposure, the H(2)O(2) signal was decreased by ~5-fold. These experiments further confirmed that the biosensor was indeed monitoring oxidative stress generated by the hepatocytes and also pointed to one future use of this technology for screening hepatoprotective effects of antioxidants.
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Affiliation(s)
- Zimple Matharu
- Department of Biomedical Engineering, University of California, Davis, California, USA
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Kolesnikova TA, Kohler D, Skirtach AG, Möhwald H. Laser-induced cell detachment, patterning, and regrowth on gold nanoparticle functionalized surfaces. ACS NANO 2012; 6:9585-9595. [PMID: 23066742 DOI: 10.1021/nn302891u] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report on the selective cell detachment from nanoengineered gold nanoparticle (AuNP) surfaces triggered by laser irradiation, which occurs in a nonthermal manner. The gold nanoparticle-based surfaces reveal good adhesion of NIH3T3 fibroblast cells. Patterning is achieved by lithographic microcontact printing, selective gold nanoparticle deposition, and by laser beam profiling. It is shown that the effectiveness of fibroblast cell detachment depends on the cell age, laser power, and AuNP patterning profile. Heat distribution and temperature rise around gold nanoparticle functionalized surfaces is modeled, revealing low heating of nanoparticles by laser illumination. The nonthermal photochemical mechanism of cell detachment due to production of reactive oxygen species under illumination of gold nanoparticles by green laser light is studied. We also demonstrate that cells migrate from unirradiated areas leading to their reattachment and surface recovery which is important for controlled spatial organization of cells in wound healing and tissue engineering. Research presented in this work is targeted at designing biointerfaces for cell cultures.
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Affiliation(s)
- Tatiana A Kolesnikova
- Department of Interfaces, Max-Planck Institute of Colloids and Interfaces, Am Mühlenberg 1 OT Golm, D14476 Potsdam, Germany.
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Abstract
Individual cells in their native physiological states face a dynamic multi-factorial environment. This is true of both single-celled and multi-cellular organisms. A key challenge in cell biology is the design of experimental methods and specific assays to disentangle the contribution of each of the parameters governing cell behavior. After decades of studying cells cultured in Petri dishes or on glass coverslips, researchers can now benefit from a range of recent technological developments that allow them to study cells in a variety of contexts, with different levels of complexity and control over a range of environmental parameters. These technologies include new types of microscopy for detailed imaging of large cell aggregates or even whole tissues, and the development of cell culture substrates, such as 3D matrices. Here we will review the contribution of a third type of tool, collectively known as microfabricated tools. Derived from techniques originally developed for microelectronics, these tools range in size from hundreds of microns to hundreds of nanometers.
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Wan Y, Liu Y, Allen PB, Asghar W, Mahmood MAI, Tan J, Duhon H, Kim YT, Ellington AD, Iqbal SM. Capture, isolation and release of cancer cells with aptamer-functionalized glass bead array. LAB ON A CHIP 2012; 12:4693-701. [PMID: 22983436 PMCID: PMC3498495 DOI: 10.1039/c2lc21251j] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Early detection and isolation of circulating tumor cells (CTC) can enable better prognosis for cancer patients. A Hele-Shaw device with aptamer functionalized glass beads is designed, modeled, and fabricated to efficiently isolate cancer cells from a cellular mixture. The glass beads are functionalized with anti-epidermal growth factor receptor (EGFR) aptamer and sit in ordered array of pits in polydimethylsiloxane (PDMS) channel. A PDMS encapsulation is then used to cover the channel and to flow through cell solution. The beads capture cancer cells from flowing solution depicting high selectivity. The cell-bound glass beads are then re-suspended from the device surface followed by the release of 92% cells from glass beads using combination of soft shaking and anti-sense RNA. This approach ensures that the cells remain in native state and undisturbed during capture, isolation and elution for post-analysis. The use of highly selective anti-EGFR aptamer with the glass beads in an array and subsequent release of cells with antisense molecules provide multiple levels of binding and release opportunities that can help in defining new classes of CTC enumeration devices.
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Affiliation(s)
- Yuan Wan
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas
- Nano-BioLab, University of Texas at Arlington, Arlington, Texas
- Nanotechnology Research and Teaching Facility, University of Texas at Arlington, Arlington, Texas
| | - Yaling Liu
- Department of Mechanical Engineering and Mechanics, Bioengineering Program, Lehigh University, Bethlehem, Pennsylvania
| | - Peter B. Allen
- Institute for Cell and Molecular Biology, University of Texas at Austin, Austin, Texas
| | - Waseem Asghar
- Nano-BioLab, University of Texas at Arlington, Arlington, Texas
- Nanotechnology Research and Teaching Facility, University of Texas at Arlington, Arlington, Texas
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas
| | - M. Arif Iftakher Mahmood
- Nano-BioLab, University of Texas at Arlington, Arlington, Texas
- Nanotechnology Research and Teaching Facility, University of Texas at Arlington, Arlington, Texas
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas
| | - Jifu Tan
- Department of Mechanical Engineering and Mechanics, Bioengineering Program, Lehigh University, Bethlehem, Pennsylvania
| | - Holli Duhon
- Institute for Cell and Molecular Biology, University of Texas at Austin, Austin, Texas
| | - Young-tae Kim
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas
- Nanotechnology Research and Teaching Facility, University of Texas at Arlington, Arlington, Texas
| | - Andrew D. Ellington
- Institute for Cell and Molecular Biology, University of Texas at Austin, Austin, Texas
| | - Samir M. Iqbal
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas
- Nano-BioLab, University of Texas at Arlington, Arlington, Texas
- Nanotechnology Research and Teaching Facility, University of Texas at Arlington, Arlington, Texas
- Department of Electrical Engineering, University of Texas at Arlington, Arlington, Texas
- Joint Graduate Committee of Bioengineering Program, University of Texas at Arlington and University of Texas Southwestern Medical Center at Dallas, University of Texas at Arlington, Arlington, Texas
- Corresponding Author: Samir M. Iqbal, Ph.D., 500 S. Cooper St, M.S. 19072, Room #217, University of Texas at Arlington, Arlington, TX 76019, , Ph: +1-817-272-0228, Fax: +1-817-272-7458
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Ng CCA, Magenau A, Ngalim SH, Ciampi S, Chockalingham M, Harper JB, Gaus K, Gooding JJ. Using an Electrical Potential to Reversibly Switch Surfaces between Two States for Dynamically Controlling Cell Adhesion. Angew Chem Int Ed Engl 2012; 51:7706-10. [DOI: 10.1002/anie.201202118] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 06/06/2012] [Indexed: 01/10/2023]
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39
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Ng CCA, Magenau A, Ngalim SH, Ciampi S, Chockalingham M, Harper JB, Gaus K, Gooding JJ. Using an Electrical Potential to Reversibly Switch Surfaces between Two States for Dynamically Controlling Cell Adhesion. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202118] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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40
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Choi I, Yeo WS. Self-Assembled Monolayers with Dynamicity Stemming from (Bio)Chemical Conversions: From Construction to Application. Chemphyschem 2012; 14:55-69. [DOI: 10.1002/cphc.201200293] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Indexed: 11/11/2022]
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41
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Shah SS, Kim M, Foster E, Vu T, Patel D, Chen LJ, Verkhoturov SV, Schweikert E, Tae G, Revzin A. Electrochemical release of hepatocyte-on-hydrogel microstructures from ITO substrates. Anal Bioanal Chem 2011; 402:1847-56. [DOI: 10.1007/s00216-011-5613-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 11/23/2011] [Accepted: 11/24/2011] [Indexed: 01/09/2023]
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42
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Liu Y, Yan J, Howland MC, Kwa T, Revzin A. Micropatterned aptasensors for continuous monitoring of cytokine release from human leukocytes. Anal Chem 2011; 83:8286-92. [PMID: 21942846 PMCID: PMC3235337 DOI: 10.1021/ac202117g] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report the development of a microdevice for detecting local interferon gamma (IFN-γ) release from primary human leukocytes in real time. Our microdevice makes use of miniature aptamer-modified electrodes integrated with microfluidics to monitor cellular production of IFN-γ. The aptamer species consists of a DNA hairpin molecule with thiol groups on the 3'-end for self-assembly onto Au electrodes. A redox reporter is covalently attached at the 5'-end for electrochemical sensing. This aptasensor has excellent sensitivity for IFN-γ (<60 pM detection limit) and responds to the target analyte in real time without additional washing or labeling steps. Aptamer-functionalized electrode arrays are fabricated on glass slides containing poly(ethylene glycol) (PEG) hydrogel patterns designed to expose glass regions adjacent to electrodes while protecting the remainder of the surface from nonspecific adsorption. The micropatterned substrates are integrated with PDMS microfluidic channels and incubated with T-cell-specific antibodies (Ab) (anti-CD4). Upon injection of blood, leukocytes are bound to Ab-modified glass regions in proximity to aptasensors. Cytokine release from captured cells is triggered by mitogenic activation and detected at the aptamer-modified electrodes using square wave voltammetry (SWV). The IFN-γ signal is monitored in real time with signal appearing as early as 15 min poststimulation from as few as 90 T cells. The observed IFN-γ release profiles are used to calculate an initial IFN-γ production rate of 0.0079 pg cell(-1) h(-1) upon activation. The work described here represents an important step toward development of aptasensors for immune cell analysis and blood-based diagnostics.
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Affiliation(s)
- Ying Liu
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, United States
| | - Jun Yan
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, United States
| | - Michael C. Howland
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, United States
| | - Timothy Kwa
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, United States
| | - Alexander Revzin
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, United States
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Shin DS, Seo JH, Sutcliffe JL, Revzin A. Photolabile micropatterned surfaces for cell capture and release. Chem Commun (Camb) 2011; 47:11942-4. [PMID: 21970983 DOI: 10.1039/c1cc15046d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for capture and release of cells was developed using a photolabile linker and antibody-attached glass surface with a poly(ethylene glycol) (PEG)-pattern.
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Affiliation(s)
- Dong-Sik Shin
- Department of Biomedical Engineering, University of California, Davis, 451 East Health Sciences Dr #2619, Davis, CA 95616, USA
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Yan J, Pedrosa VA, Enomoto J, Simonian AL, Revzin A. Electrochemical biosensors for on-chip detection of oxidative stress from immune cells. BIOMICROFLUIDICS 2011; 5:32008-3200811. [PMID: 22007269 PMCID: PMC3194789 DOI: 10.1063/1.3624739] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 07/19/2011] [Indexed: 05/10/2023]
Abstract
Seamless integration of biological components with electrochemical sensors is critical in the development of microdevices for cell analysis. The present paper describes the integration miniature Au electrodes next to immune cells (macrophages) in order to detect cell-secreted hydrogen peroxide (H(2)O(2)). Photopatterning of poly(ethylene glycol) (PEG) hydrogels was used to both immobilize horseradish peroxidase molecules onto electrodes and to define regions for cell attachment in the vicinity of sensing electrodes. Electrodes micropatterned in such a manner were enclosed inside poly(dimethylsiloxane) fluid conduits and incubated with macrophages. The cells attached onto the exposed glass regions in the vicinity of the electrodes and nowhere else on the non-fouling PEG hydrogel surface. A microfluidic device was converted into an electrochemical cell by placing flow-through Ag∕AgCl reference and Pt wire counter electrodes at the outlet and inlet, respectively. This microdevice with integrated H(2)O(2)-sensing electrodes had sensitivity of 27 μA∕cm(2) mM with a limit of detection of 2 μM. Importantly, this microdevice allowed controllable seeding of macrophages next to electrodes, activation of these cells and on-chip monitoring of H(2)O(2) release in real time. In the future, this biosensor platform may be utilized for monitoring of macrophage responses to pathogens or for the study of inflammatory signaling in micropatterned cell cultures.
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45
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Electrochemical desorption of self-assembled monolayers and its applications in surface chemistry and cell biology. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2010.11.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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46
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Li L, Liu W, Wang J, Tu Q, Liu R, Wang J. Lectin-aided separation of circulating tumor cells and assay of their response to an anticancer drug in an integrated microfluidic device. Electrophoresis 2010; 31:3159-66. [DOI: 10.1002/elps.201000139] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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47
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Yan J, Pedrosa VA, Simonian AL, Revzin A. Immobilizing enzymes onto electrode arrays by hydrogel photolithography to fabricate multi-analyte electrochemical biosensors. ACS APPLIED MATERIALS & INTERFACES 2010; 2:748-55. [PMID: 20356276 PMCID: PMC2849179 DOI: 10.1021/am9007819] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This paper describes a biomaterial microfabrication approach for interfacing functional biomolecules (enzymes) with electrode arrays. Poly (ethylene glycol) (PEG) hydrogel photopatterning was employed to integrate gold electrode arrays with the enzymes glucose oxidase (GOX) and lactate oxidase (LOX). In this process, PEG diacrylate (DA)-based prepolymer containing enzyme molecules as well as redox species (vinylferrocene) was spin-coated, registered, and UV cross-linked on top of an array of gold electrodes. As a result, enzyme-carrying circular hydrogel structures (600 microm diameter) were fabricated on top of 300 microm diameter gold electrodes. Importantly, when used with multiple masks, hydrogel photolithography allowed us to immobilize GOX and LOX molecules on adjacent electrodes within the same electrode array. Cyclic voltammetry and amperometry were used to characterize biosensor electrode arrays. The response of the biosensor array was linear for up to 20 mM glucose with sensitivity of 0.9 microA cm(-2) mM(-1) and 10 mM lactate with sensitivity of 1.1 microA cm(-2) mM(-1). Importantly, simultaneous detection of glucose and lactate from the same electrode array was demonstrated. A novel strategy for integrating biological and electrical components of a biosensor described in this paper provides the flexibility to spatially resolve and register different biorecognition elements with individual members of a miniature electrode array. Of particular interest to us are future applications of these miniature electrodes for real-time monitoring of metabolite fluxes in the vicinity of living cells.
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Affiliation(s)
- Jun Yan
- Department of Biomedical Engineering, University of California, Davis, 451 East Health Sciences St. #2619, Davis, CA 95616, USA
| | - Valber A. Pedrosa
- Departments of Materials Engineering, Auburn University, Auburn, AL 36849, USA
| | | | - Alexander Revzin
- Department of Biomedical Engineering, University of California, Davis, 451 East Health Sciences St. #2619, Davis, CA 95616, USA
- Correspondence:
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Cell micropatterning inside a microchannel and assays under a stable concentration gradient. J Biosci Bioeng 2010; 110:230-7. [PMID: 20547384 DOI: 10.1016/j.jbiosc.2010.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 01/27/2010] [Accepted: 02/01/2010] [Indexed: 01/09/2023]
Abstract
We describe the use of a microfluidic device to micropattern cells in a microchannel and investigated the behavior of these cells under a concentration gradient. The microfluidic device consisted of 3 parts: a branched channel for generating a stable concentration gradient, a main channel for culturing cells, and 2 side channels that flowed into the main channel. The main channel was coated with a cross-linked albumin that was initially cell-repellent but that could become cell-adherent by electrostatic adsorption of a polycation. A sheath flow stream, which was generated by introducing a polycation solution from the branched channel and a buffer solution from the 2 side channels, was used to change a specific region in the main channel from cell-repellent to cell-adhesive. In this way, cells attached to the central region along the main channel. The remaining surface was subsequently changed to cell-adhesive, thereby facilitating cell migration from a fixed location under a concentration gradient. We demonstrated that with this device, the gradient generator could be used to conduct simultaneous cytotoxic assays with anticancer agents; further, by combining this device with cell micropatterning, migration assays under a concentration gradient of biological factors could be conducted.
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49
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Robertus J, Browne WR, Feringa BL. Dynamic control over cell adhesive properties using molecular-based surface engineering strategies. Chem Soc Rev 2010; 39:354-78. [DOI: 10.1039/b906608j] [Citation(s) in RCA: 194] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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50
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Meng F, Yang J, Liu T, Zhu X, Li G. Electric Communication between the Inner Part of a Cell and an Electrode: The Way To Look inside a Cell. Anal Chem 2009; 81:9168-71. [DOI: 10.1021/ac901455n] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fanben Meng
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, and Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jinghua Yang
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, and Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Tao Liu
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, and Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Xiaoli Zhu
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, and Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Genxi Li
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, and Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People’s Republic of China
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