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Zhang Y, Xu R, Wu J, Zhang Z, Wang Y, Yang H, Zhang S. Nanopore-related cellular death through cytoskeleton depolymerization by drug-induced ROS. Talanta 2024; 268:125355. [PMID: 37952317 DOI: 10.1016/j.talanta.2023.125355] [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: 07/22/2023] [Revised: 10/12/2023] [Accepted: 10/26/2023] [Indexed: 11/14/2023]
Abstract
Prostate cancer (PCa) is a malignant tumor with a very high incidence which ranks second after lung cancer. Although there are many drugs available for the treatment of PCa, their effectiveness and anti-cancer mechanisms still need to be explored. Atomic force microscopy (AFM) could characterize minor morphological changes on cell surfaces, which provides an effective method to explore the interaction between drugs and cells at the nanometer level and further investigate the mechanisms for treating PCa. In our research, AFM visualized pore-like structures in the PC3M cell membrane after treatment with the eminent anticancer agent paclitaxel (PTX). The diameter, depth and number of these pores were in a concentration and time-dependent manner. Reactive oxygen species (ROS) was shown to depolymerize the actin cytoskeleton and make the membrane more sensitive to oxidative damage, thus inducing pore information. After pretreatment with a ROS scavenger, pore formation was prevented. AFM imaging technology provides a new evaluation method for drug-targeted therapy for cancer.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
| | - Renfeng Xu
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
| | - Jingjing Wu
- Department of Pathology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China
| | - Zhenghong Zhang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
| | - Yuhuang Wang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
| | - Hongqin Yang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China.
| | - Sheng Zhang
- Department of Pathology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China.
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2
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Li M, Xi N, Liu L. Peak force tapping atomic force microscopy for advancing cell and molecular biology. NANOSCALE 2021; 13:8358-8375. [PMID: 33913463 DOI: 10.1039/d1nr01303c] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The advent of atomic force microscopy (AFM) provides an exciting tool to detect molecular and cellular behaviors under aqueous conditions. AFM is able to not only visualize the surface topography of the specimens, but also can quantify the mechanical properties of the specimens by force spectroscopy assay. Nevertheless, integrating AFM topographic imaging with force spectroscopy assay has long been limited due to the low spatiotemporal resolution. In recent years, the appearance of a new AFM imaging mode called peak force tapping (PFT) has shattered this limit. PFT allows AFM to simultaneously acquire the topography and mechanical properties of biological samples with unprecedented spatiotemporal resolution. The practical applications of PFT in the field of life sciences in the past decade have demonstrated the excellent capabilities of PFT in characterizing the fine structures and mechanics of living biological systems in their native states, offering novel possibilities to reveal the underlying mechanisms guiding physiological/pathological activities. In this paper, the recent progress in cell and molecular biology that has been made with the utilization of PFT is summarized, and future perspectives for further progression and biomedical applications of PFT are provided.
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Affiliation(s)
- Mi Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China and Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China and University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ning Xi
- Department of Industrial and Manufacturing Systems Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China and Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China and University of Chinese Academy of Sciences, Beijing 100049, China.
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Abstract
Nanorobotics, which has long been a fantasy in the realm of science fiction, is now a reality due to the considerable developments in diverse fields including chemistry, materials, physics, information and nanotechnology in the past decades. Not only different prototypes of nanorobots whose sizes are nanoscale are invented for various biomedical applications, but also robotic nanomanipulators which are able to handle nano-objects obtain substantial achievements for applications in biomedicine. The outstanding achievements in nanorobotics have significantly expanded the field of medical robotics and yielded novel insights into the underlying mechanisms guiding life activities, remarkably showing an emerging and promising way for advancing the diagnosis & treatment level in the coming era of personalized precision medicine. In this review, the recent advances in nanorobotics (nanorobots, nanorobotic manipulations) for biomedical applications are summarized from several facets (including molecular machines, nanomotors, DNA nanorobotics, and robotic nanomanipulators), and the future perspectives are also presented.
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Effect of laminin, polylysine and cell medium components on the attachment of human hepatocellular carcinoma cells to cellulose nanofibrils analyzed by surface plasmon resonance. J Colloid Interface Sci 2020; 584:310-319. [PMID: 33069029 DOI: 10.1016/j.jcis.2020.09.080] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/22/2020] [Accepted: 09/20/2020] [Indexed: 12/26/2022]
Abstract
The development of in vitro cell models that mimic cell behavior in organs and tissues is an approach that may have remarkable impact on drug testing and tissue engineering applications in the future. Plant-based, chemically unmodified cellulose nanofibrils (CNF) hydrogel is a natural, abundant, and biocompatible material that has attracted great attention for biomedical applications, in particular for three-dimensional cell cultures. However, the mechanisms of cell-CNF interactions and factors that affect these interactions are not yet fully understood. In this work, multi-parametric surface plasmon resonance (SPR) was used to study how the adsorption of human hepatocellular carcinoma (HepG2) cells on CNF films is affected by the different proteins and components of the cell medium. Both human recombinant laminin-521 (LN-521, a natural protein of the extracellular matrix) and poly-l-lysine (PLL) adsorbed on CNF films and enhanced the attachment of HepG2 cells. Cell medium components (glucose and amino acids) and serum proteins (fetal bovine serum, FBS) also adsorbed on both bare CNF and on protein-coated CNF substrates. However, the adsorption of FBS hindered the attachment of HepG2 cells to LN-521- and PLL-coated CNF substrates, suggesting that serum proteins blocked the formation of laminin-integrin bonds and decreased favorable PLL-cell electrostatic interactions. This work sheds light on the effect of different factors on cell attachment to CNF, paving the way for the utilization and optimization of CNF-based materials for different tissue engineering applications.
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Yang W, Sun L, Cai S, Chen Y, Liang W, Zhou P, Yu H, Wang Y, Liu L. Dynamically directing cell organization via micro-hump structure patterned cell-adhered interfaces. LAB ON A CHIP 2020; 20:2447-2452. [PMID: 32542258 DOI: 10.1039/d0lc00477d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cell adhesion plays an important role in cell communication, organ formation and tissue maintenance. Spatial microstructure patterning has the capability to regulate cell functions such as cell adhesion and cell proliferation as well as cellular mechanical properties. In this study, we present a simple method to fabricate micro-hump patterned interfaces based on electrohydrodynamic jet (E-jet) printing to control and direct cell organization. Micro-hump structures were rapidly fabricated by E-jet printing and arbitrary cell patterns can be achieved by selective cell adhesion induced by this surface topography. Furthermore, cellular mechanical properties were regulated by changing the density of microstructures. The technique we proposed could dynamically direct cell organization in a controlled manner, providing help for exploring the fundamental mechanism of cell adhesion and sensing.
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Affiliation(s)
- Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, China.
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6
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Liu X, Shi Q, Lin Y, Kojima M, Mae Y, Fukuda T, Huang Q, Arai T. Multifunctional Noncontact Micromanipulation Using Whirling Flow Generated by Vibrating a Single Piezo Actuator. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804421. [PMID: 30556342 DOI: 10.1002/smll.201804421] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/15/2018] [Indexed: 05/28/2023]
Abstract
A noncontact method that can achieve immobilization, transportation, and rotation in the microscale is desired in biological micromanipulation. A multifunctional noncontact micromanipulation method is proposed here based on a vibration-generated whirling flow. Resonance of a cantilever structure is utilized to extend the straight vibration of a single piezo actuator to the 2D circular vibration of a micropipette. The circular vibration in fluids can generate the whirling flow featured with low pressure in the core area and flow velocity gradient. The low pressure can immobilize the objects nearby and transport them together with the micropipette, and the flow velocity gradient is utilized to form a torque to rotate the immobilized object. Experiments of the microbeads are conducted to evaluate the claimed functions and quantify the key parameters that influence the rotation velocity. The cell spheroid is immobilized and rotated for 3D observation, and by assessing the viability of the cells containing in the spheroid, the proposed method is proved noninvasive to living cells. Finally, another important application in operations of mouse egg cells is shown, which indicates that the proposed method is a potential valuable tool in biological micromanipulation.
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Affiliation(s)
- Xiaoming Liu
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Qing Shi
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuqing Lin
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Masaru Kojima
- Department of Systems Innovation, Osaka University, Osaka, 560-8531, Japan
| | - Yasushi Mae
- Department of Systems Innovation, Osaka University, Osaka, 560-8531, Japan
| | - Toshio Fukuda
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Qiang Huang
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Tatsuo Arai
- Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, and School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China
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7
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Wang Z, Li C, Wei Y. Application of Fluorescence in Studying Therapeutic Enzymes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1148:105-114. [DOI: 10.1007/978-981-13-7709-9_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Bahwini TM, Zhong Y, Gu C, Nasa Z, Oetomo D. Investigating the Mechanical Properties of Biological Brain Cells With Atomic Force Microscopy. J Med Device 2018. [DOI: 10.1115/1.4040995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Characterization of cell mechanical properties plays an important role in disease diagnoses and treatments. This paper uses advanced atomic force microscopy (AFM) to measure the geometrical and mechanical properties of two different human brain normal HNC-2 and cancer U87 MG cells. Based on experimental measurement, it measures the cell deformation and indentation force to characterize cell mechanical properties. A fitting algorithm is developed to generate the force-loading curves from experimental data. An inverse Hertzian method is also established to identify Young's moduli for HNC-2 and U87 MG cells. The results demonstrate that Young's modulus of cancer cells is different from that of normal cells, which can help us to differentiate normal and cancer cells from the biomechanical viewpoint.
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Affiliation(s)
| | - Yongmin Zhong
- School of Engineering, RMIT University, Melbourne 3083, Australia e-mail:
| | - Chengfan Gu
- Department of Mechanical Engineering, University of Melbourne, Parkville 3010, Australia e-mail:
| | - Zeyad Nasa
- Micro Nano Research Facility, College of Science, Engineering and Health, RMIT, Melbourne 3000, Australia e-mail:
| | - Denny Oetomo
- Department of Mechanical Engineering, University of Melbourne, Parkville 3010, Australia e-mail:
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9
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Li M, Dang D, Xi N, Wang Y, Liu L. Nanoscale imaging and force probing of biomolecular systems using atomic force microscopy: from single molecules to living cells. NANOSCALE 2017; 9:17643-17666. [PMID: 29135007 DOI: 10.1039/c7nr07023c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to the lack of adequate tools for observation, native molecular behaviors at the nanoscale have been poorly understood. The advent of atomic force microscopy (AFM) provides an exciting instrument for investigating physiological processes on individual living cells with molecular resolution, which attracts the attention of worldwide researchers. In the past few decades, AFM has been widely utilized to investigate molecular activities on diverse biological interfaces, and the performances and functions of AFM have also been continuously improved, greatly improving our understanding of the behaviors of single molecules in action and demonstrating the important role of AFM in addressing biological issues with unprecedented spatiotemporal resolution. In this article, we review the related techniques and recent progress about applying AFM to characterize biomolecular systems in situ from single molecules to living cells. The challenges and future directions are also discussed.
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Affiliation(s)
- Mi Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China.
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10
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Effects of Streptococcus sanguinis Bacteriocin on Deformation, Adhesion Ability, and Young's Modulus of Candida albicans. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5291486. [PMID: 28612025 PMCID: PMC5458367 DOI: 10.1155/2017/5291486] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/31/2017] [Accepted: 04/24/2017] [Indexed: 11/18/2022]
Abstract
In order to study the thallus changes on microscopic morphology and mechanical properties of Candida albicans antagonized by Streptococcus sanguinis bacteriocin, the adhesion ability and Young's modulus of thalli and hypha of Candida albicans were measured by the relative measurement method using atomic force microscope's (AFM) tapping model. The results showed that the average adhesion ability and Young's modulus of thalli were 7.35 ± 0.77 nN and 7.33 ± 1.29 Mpa, respectively; the average adhesion ability and Young's modulus of hypha were 9.82 ± 0.39 nN and 4.04 ± 0.76 Mpa, respectively. After being antagonized by Streptococcus sanguinis bacteriocin, the adhesion ability was decreased along with the increasing of deformation in reaction region and Young's modulus followed the same changes. It could be concluded that the adhesion ability of hypha was greater than thalli, Young's modulus of hypha was less than thalli, and adhesion ability and Young's modulus of Candida albicans were decreased significantly after being antagonized by Streptococcus sanguinis bacteriocin.
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11
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Zhang Z, Chen X, Jiang C, Fang Z, Feng Y, Jiang W. The effect and mechanism of inhibiting glucose-6-phosphate dehydrogenase activity on the proliferation of Plasmodium falciparum. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:771-781. [DOI: 10.1016/j.bbamcr.2017.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 02/10/2017] [Accepted: 02/13/2017] [Indexed: 01/16/2023]
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12
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Imaging and Force Recognition of Single Molecular Behaviors Using Atomic Force Microscopy. SENSORS 2017; 17:s17010200. [PMID: 28117741 PMCID: PMC5298773 DOI: 10.3390/s17010200] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 01/12/2017] [Accepted: 01/16/2017] [Indexed: 12/23/2022]
Abstract
The advent of atomic force microscopy (AFM) has provided a powerful tool for investigating the behaviors of single native biological molecules under physiological conditions. AFM can not only image the conformational changes of single biological molecules at work with sub-nanometer resolution, but also sense the specific interactions of individual molecular pair with piconewton force sensitivity. In the past decade, the performance of AFM has been greatly improved, which makes it widely used in biology to address diverse biomedical issues. Characterizing the behaviors of single molecules by AFM provides considerable novel insights into the underlying mechanisms guiding life activities, contributing much to cell and molecular biology. In this article, we review the recent developments of AFM studies in single-molecule assay. The related techniques involved in AFM single-molecule assay were firstly presented, and then the progress in several aspects (including molecular imaging, molecular mechanics, molecular recognition, and molecular activities on cell surface) was summarized. The challenges and future directions were also discussed.
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13
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Maver U, Velnar T, Gaberšček M, Planinšek O, Finšgar M. Recent progressive use of atomic force microscopy in biomedical applications. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.03.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Applications of Atomic Force Microscopy in Exploring Drug Actions in Lymphoma-Targeted Therapy at the Nanoscale. BIONANOSCIENCE 2016. [DOI: 10.1007/s12668-015-0180-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Liu M, Zheng M, Xu H, Liu L, Li Y, Xiao W, Li J, Ma E. Anti-pulmonary fibrotic activity of salvianolic acid B was screened by a novel method based on the cyto-biophysical properties. Biochem Biophys Res Commun 2015; 468:214-20. [PMID: 26523510 DOI: 10.1016/j.bbrc.2015.10.127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 10/24/2015] [Indexed: 01/28/2023]
Abstract
Various methods have been used to evaluate anti-fibrotic activity of drugs. However, most of them are complicated, labor-intensive and lack of efficiency. This study was intended to develop a rapid method for anti-fibrotic drugs screening based on biophysical properties. A549 cells in vitro were stimulated with transforming growth factor-β1 (TGF-β1), and fibrogenesis was confirmed by conventional immunological assays. Meanwhile, the alterations of cyto-biophysical properties including morphology, roughness and stiffness were measured utilizing atomic force microscopy (AFM). It was found that fibrogenesis was accompanied with changes of cellular biophysical properties. TGF-β1-stimulated A549 cells became remarkably longer, rougher and stiffer than the control. Then, the effect of N-acetyl-L-cysteine (NAC) as a positive drug on ameliorating fibrogenesis in TGF-β1-stimulated A549 cells was verified respectively by immunological and biophysical markers. The result of Principal Component Analysis showed that stiffness was a leading index among all biophysical markers during fibrogenesis. Salvianolic acid B (SalB), a natural anti-oxidant, was detected by AFM to protect TGF-β1-stimulated A549 cells against stiffening. Then, SalB treatment was provided in preventive mode on a rat model of bleomycin (BLM) -induced pulmonary fibrosis. The results showed that SalB treatment significantly ameliorated BLM-induced histological alterations, blocked collagen accumulations and reduced α-SMA expression in lung tissues. All these results revealed the anti-pulmonary fibrotic activity of SalB. Detection of cyto-biophysical properties were therefore recommended as a rapid method for anti-pulmonary fibrotic drugs screening.
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Affiliation(s)
- Miao Liu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mingjing Zheng
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Hanying Xu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Lianqing Liu
- Shenyang Institute of Automation China Academy of Sciences, Shenyang, 110016, China
| | - Yanchun Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Nanjing, 222001, China
| | - Jianchun Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Enlong Ma
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, China; Jiangsu Kanion Pharmaceutical Co., Ltd., Nanjing, 222001, China.
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16
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Selective pattern of cancer cell accumulation and growth using UV modulating printing of hydrogels. Biomed Microdevices 2015; 17:104. [DOI: 10.1007/s10544-015-0013-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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17
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Li M, Liu L, Xi N, Wang Y. Biological Applications of a Nanomanipulator Based on AFM: In situ visualization and quantification of cellular behaviors at the single-molecule level. IEEE NANOTECHNOLOGY MAGAZINE 2015. [DOI: 10.1109/mnano.2015.2441110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Nanoscale monitoring of drug actions on cell membrane using atomic force microscopy. Acta Pharmacol Sin 2015; 36:769-82. [PMID: 26027658 DOI: 10.1038/aps.2015.28] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 03/13/2015] [Indexed: 02/06/2023] Open
Abstract
Knowledge of the nanoscale changes that take place in individual cells in response to a drug is useful for understanding the drug action. However, due to the lack of adequate techniques, such knowledge was scarce until the advent of atomic force microscopy (AFM), which is a multifunctional tool for investigating cellular behavior with nanometer resolution under near-physiological conditions. In the past decade, researchers have applied AFM to monitor the morphological and mechanical dynamics of individual cells following drug stimulation, yielding considerable novel insight into how the drug molecules affect an individual cell at the nanoscale. In this article we summarize the representative applications of AFM in characterization of drug actions on cell membrane, including topographic imaging, elasticity measurements, molecular interaction quantification, native membrane protein imaging and manipulation, etc. The challenges that are hampering the further development of AFM for studies of cellular activities are aslo discussed.
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19
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In Situ Nanocharacterization of Yeast Cells Using ESEM and FIB. Fungal Biol 2015. [DOI: 10.1007/978-3-319-22437-4_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Shen Y, Fukuda T. State of the art: micro-nanorobotic manipulation in single cell analysis. ACTA ACUST UNITED AC 2014. [DOI: 10.1186/s40638-014-0021-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Yallapu MM, Katti KS, Katti DR, Mishra SR, Khan S, Jaggi M, Chauhan SC. The roles of cellular nanomechanics in cancer. Med Res Rev 2014; 35:198-223. [PMID: 25137233 DOI: 10.1002/med.21329] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The biomechanical properties of cells and tissues may be instrumental in increasing our understanding of cellular behavior and cellular manifestations of diseases such as cancer. Nanomechanical properties can offer clinical translation of therapies beyond what are currently employed. Nanomechanical properties, often measured by nanoindentation methods using atomic force microscopy, may identify morphological variations, cellular binding forces, and surface adhesion behaviors that efficiently differentiate normal cells and cancer cells. The aim of this review is to examine current research involving the general use of atomic force microscopy/nanoindentation in measuring cellular nanomechanics; various factors and instrumental conditions that influence the nanomechanical properties of cells; and implementation of nanoindentation methods to distinguish cancer cells from normal cells or tissues. Applying these fundamental nanomechanical properties to current discoveries in clinical treatment may result in greater efficiency in diagnosis, treatment, and prevention of cancer, which ultimately can change the lives of patients.
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Affiliation(s)
- Murali M Yallapu
- Department of Pharmaceutical Sciences and Center for Cancer Research, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee, 38163
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22
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Liang W, Zhao Y, Liu L, Wang Y, Dong Z, Li WJ, Lee GB, Xiao X, Zhang W. Rapid and label-free separation of Burkitt's lymphoma cells from red blood cells by optically-induced electrokinetics. PLoS One 2014; 9:e90827. [PMID: 24608811 PMCID: PMC3946566 DOI: 10.1371/journal.pone.0090827] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 02/04/2014] [Indexed: 02/06/2023] Open
Abstract
Early stage detection of lymphoma cells is invaluable for providing reliable prognosis to patients. However, the purity of lymphoma cells in extracted samples from human patients' marrow is typically low. To address this issue, we report here our work on using optically-induced dielectrophoresis (ODEP) force to rapidly purify Raji cells' (a type of Burkitt's lymphoma cell) sample from red blood cells (RBCs) with a label-free process. This method utilizes dynamically moving virtual electrodes to induce negative ODEP force of varying magnitudes on the Raji cells and RBCs in an optically-induced electrokinetics (OEK) chip. Polarization models for the two types of cells that reflect their discriminate electrical properties were established. Then, the cells' differential velocities caused by a specific ODEP force field were obtained by a finite element simulation model, thereby established the theoretical basis that the two types of cells could be separated using an ODEP force field. To ensure that the ODEP force dominated the separation process, a comparison of the ODEP force with other significant electrokinetics forces was conducted using numerical results. Furthermore, the performance of the ODEP-based approach for separating Raji cells from RBCs was experimentally investigated. The results showed that these two types of cells, with different concentration ratios, could be separated rapidly using externally-applied electrical field at a driven frequency of 50 kHz at 20 Vpp. In addition, we have found that in order to facilitate ODEP-based cell separation, Raji cells' adhesion to the OEK chip's substrate should be minimized. This paper also presents our experimental results of finding the appropriate bovine serum albumin concentration in an isotonic solution to reduce cell adhesion, while maintaining suitable medium conductivity for electrokinetics-based cell separation. In short, we have demonstrated that OEK technology could be a promising tool for efficient and effective purification of Raji cells from RBCs.
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Affiliation(s)
- Wenfeng Liang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- University of Chinese Academy of Sciences, Beijing, China
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong
| | - Yuliang Zhao
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- * E-mail: (LL); (WJL)
| | - Yuechao Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Zaili Dong
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
| | - Wen Jung Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong
- * E-mail: (LL); (WJL)
| | - Gwo-Bin Lee
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Xiubin Xiao
- Department of Lymphoma, Affiliated Hospital of Military Medical Academy of Sciences, Beijing, China
| | - Weijing Zhang
- Department of Lymphoma, Affiliated Hospital of Military Medical Academy of Sciences, Beijing, China
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Atomic force microscopy imaging of live mammalian cells. SCIENCE CHINA-LIFE SCIENCES 2013; 56:811-7. [DOI: 10.1007/s11427-013-4532-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 07/15/2013] [Indexed: 12/22/2022]
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Li M, Liu L, Xi N, Wang Y, Dong Z, Xiao X, Zhang W. Progress of AFM single-cell and single-molecule morphology imaging. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5906-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Shen Y, Nakajima M, Yang Z, Tajima H, Najdovski Z, Homma M, Fukuda T. Single cell stiffness measurement at various humidity conditions by nanomanipulation of a nano-needle. NANOTECHNOLOGY 2013; 24:145703. [PMID: 23507613 DOI: 10.1088/0957-4484/24/14/145703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper presents a method for single cell stiffness measurement based on a nano-needle and nanomanipulation. The nano-needle with a buffering beam was fabricated from an atomic force microscope cantilever by the focused ion beam etching technique. Wild type yeast cells (W303) were prepared and placed on the sample stage inside an environmental scanning electron microscope (ESEM) chamber. The nanomanipulator actuated the nano-needle to press against a single yeast cell. As a result, the deformation of the cell and nano-needle was observed by the ESEM system in real-time. Finally, the stiffness of the single cell was determined based on this deformation information. To reveal the relationship between the cell stiffness and the environmental humidity conditions, the cell stiffness was measured at three different humidity conditions, i.e. 40, 70 and 100%, respectively. The results show that the stiffness of a single cell is reduced with increasing humidity.
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Affiliation(s)
- Yajing Shen
- Department of Micro-Nano Systems Engineering, Nagoya University, Japan.
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Atomic force microscopy imaging and mechanical properties measurement of red blood cells and aggressive cancer cells. SCIENCE CHINA-LIFE SCIENCES 2012; 55:968-73. [DOI: 10.1007/s11427-012-4399-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 10/23/2012] [Indexed: 02/06/2023]
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Wang Z, Liu L, Wang Y, Xi N, Dong Z, Li M, Yuan S. A fully automated system for measuring cellular mechanical properties. ACTA ACUST UNITED AC 2012; 17:443-8. [PMID: 23015516 DOI: 10.1177/2211068212460236] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
As a novel effective label-free biomarker, the mechanical properties of cells have become increasingly important. However, the current methods of mapping cellular mechanical properties are mostly carried out manually, resulting in measurements that are time-consuming with low efficiency. In this article, a fully automated system of measuring the mechanical properties of cells based on atomic force microscopy (AFM) is proposed. In this system, the cells are recognized using an image-processing method and the relative position of the cell, and the AFM tip is accurately calibrated by the local scan method, meaning that the mechanical properties of cells can be measured sequentially without performing the step of AFM imaging. In addition, with the implementation of the automation, the high-throughput measurement of cellular mechanical properties can be performed rapidly. The capability of our system is validated on Raji cells, and the results indicate that the measurement rate of our system is 26 times faster than that of the traditional manual method, providing the technology for high-throughput measurement of cellular mechanical properties.
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Affiliation(s)
- Zhibo Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
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Mahadevan D, Stejskal A, Cooke LS, Manziello A, Morales C, Persky DO, Fisher RI, Miller TP, Qi W. Aurora A inhibitor (MLN8237) plus vincristine plus rituximab is synthetic lethal and a potential curative therapy in aggressive B-cell non-Hodgkin lymphoma. Clin Cancer Res 2012; 18:2210-9. [PMID: 22374334 DOI: 10.1158/1078-0432.ccr-11-2413] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE Aurora A and B are oncogenic serine/threonine kinases that regulate mitosis. Overexpression of Auroras promotes resistance to microtubule-targeted agents. We investigated mechanistic synergy by inhibiting the mitotic spindle apparatus in the presence of MLN8237 [M], an Aurora A inhibitor with either vincristine [MV] or docetaxel [MD] in aggressive B-cell non-Hodgkin lymphoma (B-NHL). The addition of rituximab [R] to MV or MD was evaluated for synthetic lethality. EXPERIMENTAL DESIGN Aggressive B-NHL cell subtypes were evaluated in vitro and in vivo for target modulation and anti-NHL activity with single agents, doublets, and triplets by analyzing cell proliferation, apoptosis, tumor growth, survival, and mechanisms of response/relapse by gene expression profiling with protein validation. RESULTS MV is synergistic whereas MD is additive for cell proliferation inhibition in B-NHL cell culture models. Addition of rituximab to MV is superior to MD, but both significantly induce apoptosis compared with doublet therapy. Mouse xenograft models of mantle cell lymphoma showed modest single-agent activity for MLN8237, rituximab, docetaxel, and vincristine with tumor growth inhibition (TGI) of approximately 10% to 15%. Of the doublets, MV caused tumor regression, whereas TGI was observed with MD (approximately 55%-60%) and MR (approximately 25%-50%), respectively. Although MV caused tumor regression, mice relapsed 20 days after stopping therapy. In contrast, MVR was curative, whereas MDR led to TGI of approximately 85%. Proliferation cell nuclear antigen, Aurora B, cyclin B1, cyclin D1, and Bcl-2 proteins of harvested tumors confirmed response and resistance to therapy. CONCLUSIONS Addition of rituximab to MV is a novel therapeutic strategy for aggressive B-NHL and warrants clinical trial evaluation.
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Affiliation(s)
- Daruka Mahadevan
- Arizona Cancer Center, the University of Arizona, Tucson, Arizona 85724, USA.
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