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Chavarria D, Abbaspour A, Celestino N, Shah N, Sankar S, Baker AB. A high throughput blood-brain barrier model incorporating shear stress with improved predictive power for drug discovery. BIOMICROFLUIDICS 2023; 17:044105. [PMID: 37614679 PMCID: PMC10444201 DOI: 10.1063/5.0150887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/01/2023] [Indexed: 08/25/2023]
Abstract
The blood-brain barrier is a key structure regulating the health of the brain and access of drugs and pathogens to neural tissue. Shear stress is a key regulator of the blood-brain barrier; however, the commonly used multi-well vitro models of the blood-brain barrier do not incorporate shear stress. In this work, we designed and validated a high-throughput system for simulating the blood-brain barrier that incorporates physiological flow and incorporates an optimized cellular model of the blood-brain barrier. This system can perform assays of blood-brain barrier function with shear stress, with 48 independent assays simultaneously. Using the high throughput assay, we conducted drug screening assays to explore the effects of compounds for opening or closing blood-brain barrier. Our studies revealed that assays with shear stress were more predictive and were able to identify compounds known to modify the blood-brain barrier function while static assays were not. Overall, we demonstrate an optimized, high throughput assay for simulating the blood-brain barrier that incorporates shear stress and is practical for use in drug screening and other high throughput studies of toxicology.
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Affiliation(s)
- Daniel Chavarria
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas 78712, USA
| | - Ali Abbaspour
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas 78712, USA
| | - Natalie Celestino
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas 78712, USA
| | - Nehali Shah
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas 78712, USA
| | | | - Aaron B. Baker
- Author to whom correspondence should be addressed:. Tel.:+512-232-7114
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2
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Du R, Li L, Ji J, Fan Y. Receptor-Ligand Binding: Effect of Mechanical Factors. Int J Mol Sci 2023; 24:ijms24109062. [PMID: 37240408 DOI: 10.3390/ijms24109062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/20/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Gaining insight into the in situ receptor-ligand binding is pivotal for revealing the molecular mechanisms underlying the physiological and pathological processes and will contribute to drug discovery and biomedical application. An important issue involved is how the receptor-ligand binding responds to mechanical stimuli. This review aims to provide an overview of the current understanding of the effect of several representative mechanical factors, such as tension, shear stress, stretch, compression, and substrate stiffness on receptor-ligand binding, wherein the biomedical implications are focused. In addition, we highlight the importance of synergistic development of experimental and computational methods for fully understanding the in situ receptor-ligand binding, and further studies should focus on the coupling effects of these mechanical factors.
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Affiliation(s)
- Ruotian Du
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Long Li
- State Key Laboratory of Nonlinear Mechanics, Beijing Key Laboratory of Engineered Construction and Mechanobiology, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
| | - Jing Ji
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
| | - Yubo Fan
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China
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3
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Paddillaya N, Ingale K, Gaikwad C, Saini DK, Pullarkat P, Kondaiah P, Menon GI, Gundiah N. Cell adhesion strength and tractions are mechano-diagnostic features of cellular invasiveness. SOFT MATTER 2022; 18:4378-4388. [PMID: 35611829 DOI: 10.1039/d2sm00015f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The adhesion of cells to substrates occurs via integrin clustering and binding to the actin cytoskeleton. Oncogenes modify anchorage-dependent mechanisms in cells during cancer progression. Fluid shear devices provide a label-free way to characterize cell-substrate interactions and heterogeneities in cell populations. We quantified the critical adhesion strengths of MCF-7, MDAMB-231, A549, HPL1D, HeLa, and NIH3T3 cells using a custom fluid shear device. The detachment response was sigmoidal for each cell type. A549 and MDAMB-231 cells had significantly lower critical adhesion strengths (τ50) than their non-invasive counterparts, HPL1D and MCF-7. Detachment dynamics inversely correlated with cell invasion potentials. A theoretical model, based on τ50 values and the distribution of cell areas on substrates, provided good fits to results from de-adhesion experiments. Quantification of cell tractions, using the Reg-FTTC method on 10 kPa polyacrylamide gels, showed highest values for invasive, MDAMB-231 and A549, cells compared to non-invasive cells. Immunofluorescence studies show differences in vinculin distributions; non-invasive cells have distinct vinculin puncta, whereas invasive cells have more dispersed distributions. The cytoskeleton in non-invasive cells was devoid of well-developed stress fibers, and had thicker cortical actin bundles in the boundary. Fluorescence intensity of actin was significantly lower in invasive cells as compared to non invasive cells. These correlations in adhesion strengths and traction stresses with cell invasiveness may be useful in cancer diagnostics and other pathologies featuring mis-regulation in adhesion.
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Affiliation(s)
- Neha Paddillaya
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Kalyani Ingale
- Biological Sciences, Indian Institute of Science, Bangalore, India.
| | - Chaitanya Gaikwad
- Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India
| | - Deepak Kumar Saini
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
| | - Pramod Pullarkat
- Soft Condensed Matter Group, Raman Research Institute, Bangalore, India
| | - Paturu Kondaiah
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
| | - Gautam I Menon
- The Institute of Mathematical Sciences, Chennai, India
- Departments of Physics and Biology, Ashoka University, Sonepat, India
| | - Namrata Gundiah
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
- Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India
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4
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Spencer A, Sligar AD, Chavarria D, Lee J, Choksi D, Patil NP, Lee H, Veith AP, Riley WJ, Desai S, Abbaspour A, Singeetham R, Baker AB. Biomechanical regulation of breast cancer metastasis and progression. Sci Rep 2021; 11:9838. [PMID: 33972619 PMCID: PMC8110548 DOI: 10.1038/s41598-021-89288-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 04/22/2021] [Indexed: 01/20/2023] Open
Abstract
Physical activity has been consistently linked to decreased incidence of breast cancer and a substantial increase in the length of survival of patients with breast cancer. However, the understanding of how applied physical forces directly regulate breast cancer remains limited. We investigated the role of mechanical forces in altering the chemoresistance, proliferation and metastasis of breast cancer cells. We found that applied mechanical tension can dramatically alter gene expression in breast cancer cells, leading to decreased proliferation, increased resistance to chemotherapeutic treatment and enhanced adhesion to inflamed endothelial cells and collagen I under fluidic shear stress. A mechanistic analysis of the pathways involved in these effects supported a complex signaling network that included Abl1, Lck, Jak2 and PI3K to regulate pro-survival signaling and enhancement of adhesion under flow. Studies using mouse xenograft models demonstrated reduced proliferation of breast cancer cells with orthotopic implantation and increased metastasis to the skull when the cancer cells were treated with mechanical load. Using high throughput mechanobiological screens we identified pathways that could be targeted to reduce the effects of load on metastasis and found that the effects of mechanical load on bone colonization could be reduced through treatment with a PI3Kγ inhibitor.
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Affiliation(s)
- Adrianne Spencer
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Andrew D Sligar
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Daniel Chavarria
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Jason Lee
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Darshil Choksi
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Nikita P Patil
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - HooWon Lee
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Austin P Veith
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - William J Riley
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Shubh Desai
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Ali Abbaspour
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Rohan Singeetham
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA
| | - Aaron B Baker
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station, BME 5.202D, C0800, Austin, TX, 78712, USA.
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA.
- Institute for Biomaterials, Drug Delivery and Regenerative Medicine, University of Texas at Austin, Austin, TX, USA.
- Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, USA.
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5
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Kovács KD, Novák M, Hajnal Z, Hős C, Szabó B, Székács I, Fang Y, Bonyár A, Horvath R. Label-free tracking of whole-cell response on RGD functionalized surfaces to varied flow velocities generated by fluidic rotation. J Colloid Interface Sci 2021; 599:620-630. [PMID: 33984760 DOI: 10.1016/j.jcis.2021.04.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/11/2021] [Accepted: 04/18/2021] [Indexed: 10/21/2022]
Abstract
Fluidic flow plays important roles in colloid and interface sciences. Measuring adsorption, aggregation processes and living cell behavior under a fluidic environment with varied flow velocities in a parallel and high-throughput manner remains to be a challenging task. Here a method is introduced to monitor cell response to well-defined flow with varied velocities over an array of label-free resonant waveguide grating (RWG) based optical biosensors. The arrangement consists of a circular well with an array of biosensors at the bottom surface. By rotating the liquid over the biosensor array using a magnetic stirrer bar, flow velocities from zero to a predefined maximum can be easily established over different locations within the biosensor array as characterized in detail by numerical simulations. Cell adhesion and detachment measurements on an Arg-Gly-Asp (RGD) peptide functionalized surface were performed to demonstrate i) measurements at a wide range of simultaneous flow velocities over the same interface; ii) the possibility of parallel measurements at the same flow conditions in one run; and iii) the simple tuning of the employed range of flow velocities. Our setup made it possible to analyze the magnitude and rate of cell detachment at various flow velocities in parallel and determine the critical velocity and force where cells start to detach from the RGD motif displaying biomimetic surface. Furthermore, cellular response to simultaneous mechanical (flow) and chemical stimulation was also investigated using trypsin as a model. This study opens a new possibility to investigate interface phenomena under predefined and conveniently varied flow conditions.
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Affiliation(s)
- Kinga Dóra Kovács
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary; Department of Biological Physics, Eötvös University, Budapest, Hungary
| | - Martin Novák
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary
| | - Zoltán Hajnal
- Microsystems Laboratory, ELKH EK MFA, Budapest, Hungary
| | - Csaba Hős
- Department of Hydrodynamic Systems, Budapest University of Technology and Economics, Budapest, Hungary
| | - Bálint Szabó
- Department of Biological Physics, Eötvös University, Budapest, Hungary
| | - Inna Székács
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary
| | - Ye Fang
- EIG New Programs, Corning Research and Development Corporation, Corning Incorporated, NY, USA
| | - Attila Bonyár
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Budapest, Hungary.
| | - Robert Horvath
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary.
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6
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Salminen AT, Allahyari Z, Gholizadeh S, McCloskey MC, Ajalik R, Cottle RN, Gaborski TR, McGrath JL. In vitro Studies of Transendothelial Migration for Biological and Drug Discovery. FRONTIERS IN MEDICAL TECHNOLOGY 2020; 2:600616. [PMID: 35047883 PMCID: PMC8757899 DOI: 10.3389/fmedt.2020.600616] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022] Open
Abstract
Inflammatory diseases and cancer metastases lack concrete pharmaceuticals for their effective treatment despite great strides in advancing our understanding of disease progression. One feature of these disease pathogeneses that remains to be fully explored, both biologically and pharmaceutically, is the passage of cancer and immune cells from the blood to the underlying tissue in the process of extravasation. Regardless of migratory cell type, all steps in extravasation involve molecular interactions that serve as a rich landscape of targets for pharmaceutical inhibition or promotion. Transendothelial migration (TEM), or the migration of the cell through the vascular endothelium, is a particularly promising area of interest as it constitutes the final and most involved step in the extravasation cascade. While in vivo models of cancer metastasis and inflammatory diseases have contributed to our current understanding of TEM, the knowledge surrounding this phenomenon would be significantly lacking without the use of in vitro platforms. In addition to the ease of use, low cost, and high controllability, in vitro platforms permit the use of human cell lines to represent certain features of disease pathology better, as seen in the clinic. These benefits over traditional pre-clinical models for efficacy and toxicity testing are especially important in the modern pursuit of novel drug candidates. Here, we review the cellular and molecular events involved in leukocyte and cancer cell extravasation, with a keen focus on TEM, as discovered by seminal and progressive in vitro platforms. In vitro studies of TEM, specifically, showcase the great experimental progress at the lab bench and highlight the historical success of in vitro platforms for biological discovery. This success shows the potential for applying these platforms for pharmaceutical compound screening. In addition to immune and cancer cell TEM, we discuss the promise of hepatocyte transplantation, a process in which systemically delivered hepatocytes must transmigrate across the liver sinusoidal endothelium to successfully engraft and restore liver function. Lastly, we concisely summarize the evolving field of porous membranes for the study of TEM.
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Affiliation(s)
- Alec T. Salminen
- Biomedical Engineering, University of Rochester, Rochester, NY, United States
| | - Zahra Allahyari
- Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, United States
| | - Shayan Gholizadeh
- Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, United States
| | - Molly C. McCloskey
- Biomedical Engineering, University of Rochester, Rochester, NY, United States
| | - Raquel Ajalik
- Biomedical Engineering, University of Rochester, Rochester, NY, United States
| | - Renee N. Cottle
- Bioengineering, Clemson University, Clemson, SC, United States
| | - Thomas R. Gaborski
- Biomedical Engineering, University of Rochester, Rochester, NY, United States
- Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, United States
| | - James L. McGrath
- Biomedical Engineering, University of Rochester, Rochester, NY, United States
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7
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Del Favero G, Kraegeloh A. Integrating Biophysics in Toxicology. Cells 2020; 9:E1282. [PMID: 32455794 PMCID: PMC7290780 DOI: 10.3390/cells9051282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/10/2020] [Accepted: 05/15/2020] [Indexed: 12/20/2022] Open
Abstract
Integration of biophysical stimulation in test systems is established in diverse branches of biomedical sciences including toxicology. This is largely motivated by the need to create novel experimental setups capable of reproducing more closely in vivo physiological conditions. Indeed, we face the need to increase predictive power and experimental output, albeit reducing the use of animals in toxicity testing. In vivo, mechanical stimulation is essential for cellular homeostasis. In vitro, diverse strategies can be used to model this crucial component. The compliance of the extracellular matrix can be tuned by modifying the stiffness or through the deformation of substrates hosting the cells via static or dynamic strain. Moreover, cells can be cultivated under shear stress deriving from the movement of the extracellular fluids. In turn, introduction of physical cues in the cell culture environment modulates differentiation, functional properties, and metabolic competence, thus influencing cellular capability to cope with toxic insults. This review summarizes the state of the art of integration of biophysical stimuli in model systems for toxicity testing, discusses future challenges, and provides perspectives for the further advancement of in vitro cytotoxicity studies.
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Affiliation(s)
- Giorgia Del Favero
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Straße 38-40, 1090 Vienna, Austria
- Core Facility Multimodal Imaging, Faculty of Chemistry, University of Vienna Währinger Straße 38-40, 1090 Vienna, Austria
| | - Annette Kraegeloh
- INM—Leibniz-Institut für Neue Materialien GmbH, Campus D2 2, 66123 Saarbrücken, Germany;
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8
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Lin Z, Luo G, Du W, Kong T, Liu C, Liu Z. Recent Advances in Microfluidic Platforms Applied in Cancer Metastasis: Circulating Tumor Cells' (CTCs) Isolation and Tumor-On-A-Chip. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1903899. [PMID: 31747120 DOI: 10.1002/smll.201903899] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/13/2019] [Indexed: 05/03/2023]
Abstract
Cancer remains the leading cause of death worldwide despite the enormous efforts that are made in the development of cancer biology and anticancer therapeutic treatment. Furthermore, recent studies in oncology have focused on the complex cancer metastatic process as metastatic disease contributes to more than 90% of tumor-related death. In the metastatic process, isolation and analysis of circulating tumor cells (CTCs) play a vital role in diagnosis and prognosis of cancer patients at an early stage. To obtain relevant information on cancer metastasis and progression from CTCs, reliable approaches are required for CTC detection and isolation. Additionally, experimental platforms mimicking the tumor microenvironment in vitro give a better understanding of the metastatic microenvironment and antimetastatic drugs' screening. With the advancement of microfabrication and rapid prototyping, microfluidic techniques are now increasingly being exploited to study cancer metastasis as they allow precise control of fluids in small volume and rapid sample processing at relatively low cost and with high sensitivity. Recent advancements in microfluidic platforms utilized in various methods for CTCs' isolation and tumor models recapitulating the metastatic microenvironment (tumor-on-a-chip) are comprehensively reviewed. Future perspectives on microfluidics for cancer metastasis are proposed.
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Affiliation(s)
- Zhengjie Lin
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Guanyi Luo
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Weixiang Du
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Tiantian Kong
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Changkun Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Zhou Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
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9
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Veith A, Conway D, Mei L, Eskin SG, McIntire LV, Baker AB. Effects of Mechanical Forces on Cells and Tissues. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00046-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Zhang F, Jin T, Hu Q, He P. Distinguishing skin cancer cells and normal cells using electrical impedance spectroscopy. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.06.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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11
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Parekh A, Das D, Das S, Dhara S, Biswas K, Mandal M, Das S. Bioimpedimetric analysis in conjunction with growth dynamics to differentiate aggressiveness of cancer cells. Sci Rep 2018; 8:783. [PMID: 29335481 PMCID: PMC5768811 DOI: 10.1038/s41598-017-18965-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 12/04/2017] [Indexed: 12/19/2022] Open
Abstract
Determination of cancer aggressiveness is mainly assessed in tissues by looking at the grade of cancer. There is a lack of specific method to determine aggressiveness of cancer cells in vitro. In our present work, we have proposed a bio-impedance based non-invasive method to differentiate aggressive property of two breast cancer cell lines. Real-time impedance analysis of MCF-7 (less aggressive) and MDA-MB-231 cells (more aggressive) demonstrated unique growth pattern. Detailed slope-analysis of impedance curves at different growth phases showed that MDA-MB-231 had higher proliferation rate and intrinsic resistance to cell death, when allowed to grow in nutrient and space limiting conditions. This intrinsic nature of death resistance of MDA-MB-231 was due to modulation and elongation of filopodia, which was also observed during scanning electron microscopy. Results were also similar when validated by cell cycle analysis. Additionally, wavelet based analysis was used to demonstrate that MCF-7 had lesser micromotion based cellular activity, when compared with MDA-MB-231. Combined together, we hypothesize that analysis of growth rate, death resistance and cellular energy, through bioimpedance based analysis can be used to determine and compare aggressiveness of multiple cancer cell lines. This further opens avenues for extrapolation of present work to human tumor tissue samples.
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Affiliation(s)
- Aditya Parekh
- School of Medical Science and Technology, IIT Kharagpur, West Bengal, India
| | - Debanjan Das
- Department of Electronics and Communications Engineering, DSPM IIIT, Naya Raipur, India
| | - Subhayan Das
- School of Medical Science and Technology, IIT Kharagpur, West Bengal, India
| | - Santanu Dhara
- School of Medical Science and Technology, IIT Kharagpur, West Bengal, India
| | - Karabi Biswas
- Department of Electrical Engineering, IIT Kharagpur, West Bengal, India
| | - Mahitosh Mandal
- School of Medical Science and Technology, IIT Kharagpur, West Bengal, India.
| | - Soumen Das
- School of Medical Science and Technology, IIT Kharagpur, West Bengal, India.
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12
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Henderson K, Sligar AD, Le VP, Lee J, Baker AB. Biomechanical Regulation of Mesenchymal Stem Cells for Cardiovascular Tissue Engineering. Adv Healthc Mater 2017; 6. [PMID: 28945009 DOI: 10.1002/adhm.201700556] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/22/2017] [Indexed: 12/15/2022]
Abstract
Mesenchymal stem cells (MSCs) are an appealing potential therapy for vascular diseases; however, many challenges remain in their clinical translation. While the use of biochemical, pharmacological, and substrate-mediated treatments to condition MSCs has been subjected to intense investigation, there has been far less exploration of using these treatments in combination with applied mechanical force for conditioning MSCs toward vascular phenotypes. This review summarizes the current understanding of the use of applied mechanical forces to differentiate MSCs into vascular cells and enhance their therapeutic potential for cardiovascular disease. First recent work on the use of material-based mechanical cues for differentiation of MSCs into vascular and cardiovascular phenotypes is examined. Then a summary of the studies using mechanical stretch or shear stress in combination with biochemical treatments to enhance vascular phenotypes in MSCs is presented.
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Affiliation(s)
- Kayla Henderson
- Department of Biomedical Engineering; University of Texas at Austin; Austin 78712 TX USA
| | - Andrew D. Sligar
- Department of Biomedical Engineering; University of Texas at Austin; Austin 78712 TX USA
| | - Victoria P. Le
- Department of Biomedical Engineering; University of Texas at Austin; Austin 78712 TX USA
| | - Jason Lee
- Department of Biomedical Engineering; University of Texas at Austin; Austin 78712 TX USA
| | - Aaron B. Baker
- Department of Biomedical Engineering; University of Texas at Austin; Austin 78712 TX USA
- Institute for Cellular and Molecular Biology; University of Texas at Austin; Austin 78712 TX USA
- The Institute for Computational Engineering and Sciences; University of Texas at Austin; Austin 78712 TX USA
- Institute for Biomaterials; Drug Delivery and Regenerative Medicine; University of Texas at Austin; Austin 78712 TX USA
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13
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Custódio-Santos T, Videira M, Brito MA. Brain metastasization of breast cancer. Biochim Biophys Acta Rev Cancer 2017; 1868:132-147. [PMID: 28341420 DOI: 10.1016/j.bbcan.2017.03.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 01/15/2023]
Abstract
Central nervous system metastases have been reported in 15-25% of breast cancer patients, and the incidence is increasing. Moreover, the survival of these patients is generally poor, with reports of a 1-year survival rate of 20%. Therefore, a better knowledge about the determinants of brain metastasization is essential for the improvement of the clinical outcomes. Here, we summarize the current data about the metastatic cascade, ranging from the output of cancer cells from the primary tumour to their colonization in the brain, which involves the epithelial-mesenchymal transition, invasion of mammary tissue, intravasation into circulation, and homing into and extravasation towards the brain. The phenotypic change in malignant cells, and the importance of the microenvironment in the formation of brain metastases are also inspected. Finally, the importance of genetic and epigenetic changes, and the recently disclosed effects of microRNAs in brain metastasization of breast cancer are highlighted.
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Affiliation(s)
- Tânia Custódio-Santos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Mafalda Videira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Department of Galenic Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Alexandra Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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Portillo-Lara R, Annabi N. Microengineered cancer-on-a-chip platforms to study the metastatic microenvironment. LAB ON A CHIP 2016; 16:4063-4081. [PMID: 27605305 DOI: 10.1039/c6lc00718j] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
More than 90% of cancer-related deaths can be attributed to the occurrence of metastatic diseases. Recent studies have highlighted the importance of the multicellular, biochemical and biophysical stimuli from the tumor microenvironment during carcinogenesis, treatment failure, and metastasis. Therefore, there is a need for experimental platforms that are able to recapitulate the complex pathophysiological features of the metastatic microenvironment. Recent advancements in biomaterials, microfluidics, and tissue engineering have led to the development of living multicellular microculture systems, which are maintained in controllable microenvironments and function with organ level complexity. The applications of these "on-chip" technologies for detection, separation, characterization and three dimensional (3D) propagation of cancer cells have been extensively reviewed in previous works. In this contribution, we focus on integrative microengineered platforms that allow the study of multiple aspects of the metastatic microenvironment, including the physicochemical cues from the tumor associated stroma, the heterocellular interactions that drive trans-endothelial migration and angiogenesis, the environmental stresses that metastatic cancer cells encounter during migration, and the physicochemical gradients that direct cell motility and invasion. We discuss the application of these systems as in vitro assays to elucidate fundamental mechanisms of cancer metastasis, as well as their use as human relevant platforms for drug screening in biomimetic microenvironments. We then conclude with our commentaries on current progress and future perspectives of microengineered systems for fundamental and translational cancer research.
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Affiliation(s)
- R Portillo-Lara
- Department of Chemical Engineering, Northeastern University, 451 Snell Engineering Building, 360 Huntington Ave, Boston, MA 02115, USA. and Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Mexico
| | - N Annabi
- Department of Chemical Engineering, Northeastern University, 451 Snell Engineering Building, 360 Huntington Ave, Boston, MA 02115, USA. and Biomaterials Innovation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
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