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Kellerer T, Sailer B, Byers P, Barnkob R, Hayden O, Hellerer T. Two-photon microscopy of acoustofluidic trapping for highly sensitive cell analysis. LAB ON A CHIP 2024. [PMID: 38895892 DOI: 10.1039/d4lc00144c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
We combine two-photon-excited fluorescence microscopy and acoustofluidic trapping in a spherical microchamber to in vitro study cells and cell clusters three-dimensionally close to in vivo conditions. The two-photon microscopy provides the in-depth 3D analysis of the spherical microchamber dimensions as well as the positions of trapped samples therein with high spatial precision and high temporal resolution enabling even tracking of the fast moving particles. Furthermore, optical sectioning allows to gather information of individual cells in trapped cell clusters inside the chamber. We demonstrate real-time monitoring of osmosis in A549 lung cells and red blood cells as one possible biomedical application. The observed osmosis reduced the cell membrane diameter by approximately 4 μm in the A549 cells and by approximately 2 μm in the red blood cells. Our approach provides an important optical tool for future investigations of cell functions and cell-cell interactions avoiding wall-contact inside an acoustofluidic device.
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Affiliation(s)
- Thomas Kellerer
- Multiphoton Imaging Lab, Munich University of Applied Sciences, 80335 Munich, Germany.
| | - Bettina Sailer
- Heinz-Nixdorf-Chair of Biomedical Electronics, School of Computation, Information and Technology, Technical University of Munich, TranslaTUM, 81675 Munich, Germany
| | - Patrick Byers
- Multiphoton Imaging Lab, Munich University of Applied Sciences, 80335 Munich, Germany.
| | | | - Oliver Hayden
- Heinz-Nixdorf-Chair of Biomedical Electronics, School of Computation, Information and Technology, Technical University of Munich, TranslaTUM, 81675 Munich, Germany
| | - Thomas Hellerer
- Multiphoton Imaging Lab, Munich University of Applied Sciences, 80335 Munich, Germany.
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2
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Pawar D, Lo Presti D, Silvestri S, Schena E, Massaroni C. Current and future technologies for monitoring cultured meat: A review. Food Res Int 2023; 173:113464. [PMID: 37803787 DOI: 10.1016/j.foodres.2023.113464] [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: 06/07/2023] [Revised: 08/30/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
The high population growth rate, massive animal food consumption, fast economic progress, and limited food resources could lead to a food crisis in the future. There is a huge requirement for dietary proteins including cultured meat is being progressed to fulfill the need for meat-derived proteins in the diet. However, production of cultured meat requires monitoring numerous bioprocess parameters. This review presents a comprehensive overview of various widely adopted techniques (optical, spectroscopic, electrochemical, capacitive, FETs, resistive, microscopy, and ultrasound) for monitoring physical, chemical, and biological parameters that can improve the bioprocess control in cultured meat. The methods, operating principle, merits/demerits, and the main open challenges are reviewed with the aim to support the readers in advancing knowledge on novel sensing systems for cultured meat applications.
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Affiliation(s)
- Dnyandeo Pawar
- Microwave Materials Group, Centre for Materials for Electronics Technology (C-MET), Athani P.O, Thrissur, Kerala 680581, India.
| | - Daniela Lo Presti
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
| | - Sergio Silvestri
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
| | - Emiliano Schena
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
| | - Carlo Massaroni
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
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3
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Liao HX, Bando K, Li M, Fujita K. Multifocal Raman Spectrophotometer for Examining Drug-Induced and Chemical-Induced Cellular Changes in 3D Cell Spheroids. Anal Chem 2023; 95:14616-14623. [PMID: 37725051 DOI: 10.1021/acs.analchem.3c02129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Cell spheroids offer alternative in vitro cell models to monolayer cultured cells because they express complexities similar to those of in vivo tissues, such as cellular responses to drugs and chemicals. Raman spectroscopy emerged as a powerful analytical tool for detecting chemical changes in living cells because it nondestructively provides vibrational information regarding a target. Although multiple iterations are required in drug screening to determine drugs to treat cell spheroids and assess the inter-spheroid heterogeneity, current Raman applications used in spheroids analysis allow the observation of only a few spheroids owing to the low throughput of Raman spectroscopy. In this study, we developed a multifocal Raman spectrophotometer that enables simultaneous analysis of multiple spheroids in separate wells of a regular 96-well plate. By utilizing 96 focal spots excitation and parallel signal collection, our system can improve the throughput by approximately 2 orders of magnitude compared to a conventional single-focus Raman microscope. The Raman spectra of HeLa cell spheroids treated with anticancer drugs and HepG2 cell spheroids treated with free fatty acids were measured simultaneously, and concentration-dependent cellular responses were observed in both studies. Using the multifocal Raman spectrophotometer, we rapidly observed chemical changes in spheroids, and thus, this system can facilitate the application of Raman spectroscopy in analyzing the cellular responses of spheroids.
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Affiliation(s)
- Hao-Xiang Liao
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kazuki Bando
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
- AIST Advanced Photonics and Biosensing Open Innovation Laboratory, Suita, Osaka 565-0871, Japan
| | - Menglu Li
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
- AIST Advanced Photonics and Biosensing Open Innovation Laboratory, Suita, Osaka 565-0871, Japan
| | - Katsumasa Fujita
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
- AIST Advanced Photonics and Biosensing Open Innovation Laboratory, Suita, Osaka 565-0871, Japan
- Institute for Open and Transdisciplinary Research Initiatives, Suita, Osaka 565-0871, Japan
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4
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Leineweber WD, Fraley SI. Adhesion tunes speed and persistence by coordinating protrusions and extracellular matrix remodeling. Dev Cell 2023; 58:1414-1428.e4. [PMID: 37321214 PMCID: PMC10527808 DOI: 10.1016/j.devcel.2023.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 03/14/2023] [Accepted: 05/19/2023] [Indexed: 06/17/2023]
Abstract
Cell migration through 3D environments is essential to development, disease, and regeneration processes. Conceptual models of migration have been developed primarily on the basis of 2D cell behaviors, but a general understanding of 3D cell migration is still lacking due to the added complexity of the extracellular matrix. Here, using a multiplexed biophysical imaging approach for single-cell analysis of human cell lines, we show how the subprocesses of adhesion, contractility, actin cytoskeletal dynamics, and matrix remodeling integrate to produce heterogeneous migration behaviors. This single-cell analysis identifies three modes of cell speed and persistence coupling, driven by distinct modes of coordination between matrix remodeling and protrusive activity. The framework that emerges establishes a predictive model linking cell trajectories to distinct subprocess coordination states.
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Affiliation(s)
- William D Leineweber
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Stephanie I Fraley
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA.
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5
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Lenzi E, Jimenez de Aberasturi D, Henriksen-Lacey M, Piñeiro P, Muniz AJ, Lahann J, Liz-Marzán LM. SERS and Fluorescence-Active Multimodal Tessellated Scaffolds for Three-Dimensional Bioimaging. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20708-20719. [PMID: 35487502 PMCID: PMC9100500 DOI: 10.1021/acsami.2c02615] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
With the ever-increasing use of 3D cell models toward studying bio-nano interactions and offering alternatives to traditional 2D in vitro and in vivo experiments, methods to image biological tissue in real time and with high spatial resolution have become a must. A suitable technique therefore is surface-enhanced Raman scattering (SERS)-based microscopy, which additionally features reduced photocytotoxicity and improved light penetration. However, optimization of imaging and postprocessing parameters is still required. Herein we present a method to monitor cell proliferation over time in 3D, using multifunctional 3D-printed scaffolds composed of biologically inert poly(lactic-co-glycolic acid) (PLGA) as the base material, in which fluorescent labels and SERS-active gold nanoparticles (AuNPs) can be embedded. The combination of imaging techniques allows optimization of SERS imaging parameters for cell monitoring. The scaffolds provide anchoring points for cell adhesion, so that cell growth can be observed in a suspended 3D matrix, with multiple reference points for confocal fluorescence and SERS imaging. By prelabeling cells with SERS-encoded AuNPs and fluorophores, cell proliferation and migration can be simultaneously monitored through confocal Raman and fluorescence microscopy. These scaffolds provide a simple method to follow cell dynamics in 4D, with minimal disturbance to the tissue model.
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Affiliation(s)
- Elisa Lenzi
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería
Biomateriales, y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
| | - Dorleta Jimenez de Aberasturi
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería
Biomateriales, y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Malou Henriksen-Lacey
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería
Biomateriales, y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
| | - Paula Piñeiro
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
| | - Ayse J. Muniz
- Biointerfaces
Institute, Department of Chemical Engineering, Materials Science and
Engineering, Biomedical Engineering Macromolecular
Science and Engineering B10-A175 NCRC University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109-2800, United States
| | - Joerg Lahann
- Biointerfaces
Institute, Department of Chemical Engineering, Materials Science and
Engineering, Biomedical Engineering Macromolecular
Science and Engineering B10-A175 NCRC University of Michigan, 2800 Plymouth Road, Ann Arbor, Michigan 48109-2800, United States
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería
Biomateriales, y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
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6
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Application of LDH assay for therapeutic efficacy evaluation of ex vivo tumor models. Sci Rep 2021; 11:18571. [PMID: 34535719 PMCID: PMC8448883 DOI: 10.1038/s41598-021-97894-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/31/2021] [Indexed: 12/20/2022] Open
Abstract
The current standard preclinical oncology models are not able to fully recapitulate therapeutic targets and clinically relevant disease biology, evidenced by the 90% attrition rate of new therapies in clinical trials. Three-dimensional (3D) culture systems have the potential to enhance the relevance of preclinical models. However, the limitations of currently available cellular assays to accurately evaluate therapeutic efficacy in these models are hindering their widespread adoption. We assessed the compatibility of the lactate dehydrogenase (LDH) assay in 3D spheroid cultures against other commercially available readout methods. We developed a standardized protocol to apply the LDH assay to ex vivo cultures, considering the impact of culture growth dynamics. We show that accounting for growth rates and background release levels of LDH are sufficient to make the LDH assay a suitable methodology for longitudinal monitoring and endpoint assessment of therapeutic efficacy in both cell line-derived xenografts (xenospheres) and patient-derived explant cultures. This method has the added value of being non-destructive and not dependent on reagent penetration or manipulation of the parent material. The establishment of reliable readout methods for complex 3D culture systems will further the utility of these tumor models in preclinical and co-clinical drug development studies.
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7
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Meyer TJ, Gerhard-Hartmann E, Lodes N, Scherzad A, Hagen R, Steinke M, Hackenberg S. Pilot study on the value of Raman spectroscopy in the entity assignment of salivary gland tumors. PLoS One 2021; 16:e0257470. [PMID: 34529739 PMCID: PMC8445432 DOI: 10.1371/journal.pone.0257470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 09/01/2021] [Indexed: 11/18/2022] Open
Abstract
Background The entity assignment of salivary gland tumors (SGT) based on histomorphology can be challenging. Raman spectroscopy has been applied to analyze differences in the molecular composition of tissues. The aim of this study was to evaluate the suitability of RS for entity assignment in SGT. Methods Raman data were collected in deparaffinized sections of pleomorphic adenomas (PA) and adenoid cystic carcinomas (ACC). Multivariate data and chemometric analysis were completed using the Unscrambler software. Results The Raman spectra detected in ACC samples were mostly assigned to nucleic acids, lipids, and amides. In a principal component-based linear discriminant analysis (LDA) 18 of 20 tumor samples were classified correctly. Conclusion In this proof of concept study, we show that a reliable SGT diagnosis based on LDA algorithm appears possible, despite variations in the entity-specific mean spectra. However, a standardized workflow for tissue sample preparation, measurement setup, and chemometric algorithms is essential to get reliable results.
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Affiliation(s)
- Till Jasper Meyer
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, University Hospital Würzburg, Würzburg, Germany
- * E-mail:
| | | | - Nina Lodes
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Agmal Scherzad
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, University Hospital Würzburg, Würzburg, Germany
| | - Rudolf Hagen
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, University Hospital Würzburg, Würzburg, Germany
| | - Maria Steinke
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Würzburg, Germany
- Fraunhofer Institute for Silicate Research ISC, Würzburg, Germany
| | - Stephan Hackenberg
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, University Hospital Würzburg, Würzburg, Germany
- Department of Otorhinolaryngology – Head and Neck Surgery, RWTH Aachen University Hospital, Aachen, Germany
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8
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Spectroscopic Approach to Correction and Visualisation of Bright-Field Light Transmission Microscopy Biological Data. PHOTONICS 2021. [DOI: 10.3390/photonics8080333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The most realistic information about a transparent sample such as a live cell can be obtained using bright-field light microscopy. Under high-intensity pulsing LED illumination, we captured a primary 12-bit-per-channel (bpc) response from an observed sample using a bright-field microscope equipped with a high-resolution (4872 × 3248) image sensor. In order to suppress data distortions originating from the light interactions with elements in the optical path, poor sensor reproduction (geometrical defects of the camera sensor and some peculiarities of sensor sensitivity), we propose a spectroscopic approach for the correction of these uncompressed 12 bpc data by simultaneous calibration of all parts of the experimental arrangement. Moreover, the final intensities of the corrected images are proportional to the photon fluxes detected by a camera sensor. It can be visualized in 8 bpc intensity depth after the Least Information Loss compression.
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9
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Lopez-Gonzalez U, Casey A, Byrne HJ. Biochemical impact of solar radiation exposure on human keratinocytes monitored by Raman spectroscopy; effects of cell culture environment. JOURNAL OF BIOPHOTONICS 2021; 14:e202100058. [PMID: 33871950 DOI: 10.1002/jbio.202100058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/27/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Understanding and amelioration of the effects of solar radiation exposure are critical in preventing the occurrence of skin cancer. Towards this end, many studies have been conducted in 2D cell culture models under simplified and unrealistic conditions. 3D culture models better capture the complexity of in vivo physiology, although the effects of the 3D extracellular matrix have not been well studied. Monitoring the instantaneous and resultant cellular responses to exposure, and the influence of the 3D environment, could provide an enhanced understanding of the fundamental processes of photocarcinogenesis. This work presents an analysis of the biochemical impacts of simulated solar radiation (SSR) occurring in immortalised human epithelial keratinocytes (HaCaT), in a 3D skin model, compared to 2D culture. Cell viability was monitored using the Alamar Blue colorimetric assay (AB), and the impact of the radiation exposure, at the level of the biomolecular constituents (nucleic acids and proteins), were evaluated through the combination of Raman microspectroscopy and multivariate statistical analysis. The results suggest that SSR exposure induces alterations of the conformational structure of DNA as an immediate impact, whereas changes in the protein signature are primarily seen as a subsequent response.
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Affiliation(s)
- Ulises Lopez-Gonzalez
- School of Physics, Nanolab Research Center, FOCAS Research Institute, Technological University Dublin, Dublin, Ireland
| | - Alan Casey
- School of Physics, Nanolab Research Center, FOCAS Research Institute, Technological University Dublin, Dublin, Ireland
| | - Hugh J Byrne
- FOCAS Research Institute, Technological University Dublin, Dublin, Ireland
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10
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Foglietta F, Canaparo R, Muccioli G, Terreno E, Serpe L. Methodological aspects and pharmacological applications of three-dimensional cancer cell cultures and organoids. Life Sci 2020; 254:117784. [PMID: 32416169 DOI: 10.1016/j.lfs.2020.117784] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/07/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023]
Abstract
Two-dimensional (2D) cell cultures, in which cells grow in flat layers on plastic surfaces, are considered the standard model for use in drug screening and for biological assays. However, these models do not accurately represent in vivo cell organization due to a lack in cell-cell/matrix interactions and in tissue and microenvironment structure. For that reason, three-dimensional (3D) cell cultures have been introduced as an innovative platform in recent years, allowing cells to grow and interact with each other in all three dimensions thanks to an artificial environment. In a 3D model cells show more interesting aspects from a physiological point of view, demonstrating several improvements in viability, morphology, proliferation and differentiations, response to external and internal stimuli, drug metabolism and efficacy and in vivo relevance. This review explores recent techniques in the development of 3D cell models with a particular focus on their application from a pharmacological point of view, starting from the concept of spheroid models generated by scaffold-free or scaffold-based techniques. Finally, special attention is paid to the concept of organoids, 3D constructs that replicate the 3D architecture of intact organs and the technology involved.
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Affiliation(s)
- Federica Foglietta
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy.
| | - Roberto Canaparo
- Department of Drug Science and Technology, University of Torino, Via Pietro Giuria 13, 10125 Torino, Italy
| | - Giampiero Muccioli
- Department of Drug Science and Technology, University of Torino, Via Pietro Giuria 13, 10125 Torino, Italy
| | - Enzo Terreno
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Via Nizza 52, 10126 Torino, Italy
| | - Loredana Serpe
- Department of Drug Science and Technology, University of Torino, Via Pietro Giuria 13, 10125 Torino, Italy
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11
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Liendl L, Grillari J, Schosserer M. Raman fingerprints as promising markers of cellular senescence and aging. GeroScience 2020; 42:377-387. [PMID: 30715693 PMCID: PMC7205846 DOI: 10.1007/s11357-019-00053-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 01/17/2019] [Indexed: 12/15/2022] Open
Abstract
Due to our aging population, understanding of the underlying molecular mechanisms constantly gains more and more importance. Senescent cells, defined by being irreversibly growth arrested and associated with a specific gene expression and secretory pattern, accumulate with age and thus contribute to several age-related diseases. However, their specific detection, especially in vivo, is still a major challenge. Raman microspectroscopy is able to record biochemical fingerprints of cells and tissues, allowing a distinction between different cellular states, or between healthy and cancer tissue. Similarly, Raman microspectroscopy was already successfully used to distinguish senescent from non-senescent cells, as well as to investigate other molecular changes that occur at cell and tissue level during aging. This review is intended to give an overview about various applications of Raman microspectroscopy to study aging, especially in the context of detecting senescent cells.
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Affiliation(s)
- Lisa Liendl
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, 1190, Vienna, Austria
| | - Johannes Grillari
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, 1190, Vienna, Austria
- Evercyte GmbH, 1190, Vienna, Austria
- Christian Doppler Laboratory on Biotechnology of Skin Aging, 1190, Vienna, Austria
| | - Markus Schosserer
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, 1190, Vienna, Austria.
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12
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Yosef HK, Schütze K. Raman Trapping Microscopy for Non-invasive Analysis of Biological Samples. Methods Mol Biol 2019; 2095:303-317. [PMID: 31858476 DOI: 10.1007/978-1-0716-0191-4_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Raman microscopy is an emerging tool in biomedicine. It provides label-free and non-invasive analysis of biological cells. Due to its high biochemical specificity, Raman spectroscopy can be used to acquire spectral fingerprints that allow characterizing cells types and states. Here, we present a methodological approach for implementing Raman microscopy in skin cell measurements. Raman spectra can clearly identify keratinocytes, fibroblasts, and melanocytes cells that are involved in the production of autologous skin grafts. Consequently, Raman microscopy is a promising tool that can be used to analyze single cells and to test the quality of therapeutic cell products.
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13
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Friese A, Ursu A, Hochheimer A, Schöler HR, Waldmann H, Bruder JM. The Convergence of Stem Cell Technologies and Phenotypic Drug Discovery. Cell Chem Biol 2019; 26:1050-1066. [PMID: 31231030 DOI: 10.1016/j.chembiol.2019.05.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 04/04/2019] [Accepted: 05/20/2019] [Indexed: 02/06/2023]
Abstract
Recent advances in induced pluripotent stem cell technologies and phenotypic screening shape the future of bioactive small-molecule discovery. In this review we analyze the impact of small-molecule phenotypic screens on drug discovery as well as on the investigation of human development and disease biology. We further examine the role of 3D spheroid/organoid structures, microfluidic systems, and miniaturized on-a-chip systems for future discovery strategies. In highlighting representative examples, we analyze how recent achievements can translate into future therapies. Finally, we discuss remaining challenges that need to be overcome for the adaptation of the next generation of screening approaches.
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Affiliation(s)
- Alexandra Friese
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany
| | - Andrei Ursu
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany; Department of Chemistry, The Scripps Research Institute, Jupiter, FL 33458, USA; Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany
| | - Andreas Hochheimer
- ISAR Bioscience GmbH, Institute for Stem Cell & Applied Regenerative Medicine Research, 82152 Planegg, Germany
| | - Hans R Schöler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149 Münster, Germany; Medical Faculty, University of Münster, Domagkstrasse 3, 48149 Münster, Germany.
| | - Herbert Waldmann
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany; Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
| | - Jan M Bruder
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149 Münster, Germany.
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14
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Crosby CO, Zoldan J. An In Vitro 3D Model and Computational Pipeline to Quantify the Vasculogenic Potential of iPSC-Derived Endothelial Progenitors. J Vis Exp 2019. [PMID: 31132046 DOI: 10.3791/59342] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Induced pluripotent stem cells (iPSCs) are a patient-specific, proliferative cell source that can differentiate into any somatic cell type. Bipotent endothelial progenitors (EPs), which can differentiate into the cell types necessary to assemble mature, functional vasculature, have been derived from both embryonic and induced pluripotent stem cells. However, these cells have not been rigorously evaluated in three-dimensional environments, and a quantitative measure of their vasculogenic potential remains elusive. Here, the generation and isolation of iPSC-EPs via fluorescent-activated cell sorting are first outlined, followed by a description of the encapsulation and culture of iPSC-EPs in collagen hydrogels. This extracellular matrix (ECM)-mimicking microenvironment encourages a robust vasculogenic response; vascular networks form after a week of culture. The creation of a computational pipeline that utilizes open-source software to quantify this vasculogenic response is delineated. This pipeline is specifically designed to preserve the 3D architecture of the capillary plexus to robustly identify the number of branches, branching points, and the total network length with minimal user input.
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Affiliation(s)
- Cody O Crosby
- Department of Biomedical Engineering, University of Texas at Austin
| | - Janet Zoldan
- Department of Biomedical Engineering, University of Texas at Austin;
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15
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Xu D, Liu S, Cai Y, Yang C. Baseline correction method based on doubly reweighted penalized least squares. APPLIED OPTICS 2019; 58:3913-3920. [PMID: 31158209 DOI: 10.1364/ao.58.003913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
The spectrum acquired on the optical instrument usually contains the pure spectrum and undesirable components such as baseline and random noise. However, the intensity of the baseline, which seriously submerges the spectrum, is the primary limitation of spectral applications. Thus, baseline correction has become one of the most significant challenges for spectral applications. In this paper, we propose a doubly reweighted penalized least squares method to estimate the baseline. This method utilizes the first-order derivative of the original spectrum and established spectrum as a constraint of similarity. Meanwhile, the doubly reweighted strategy achieves a better effort. Considering the drawbacks of the weighting rules for the adaptive iteratively reweighted penalized least squares method, we adapt a boosted weighting rule based on the softsign function, which performs well when the spectrum contains high noise. The simulated results confirm that the proposed method yields better outcomes. The proposed method can be applied to Raman and near-infrared spectra as well, and the result shows that it can estimate various kinds of baselines effectively.
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16
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Pill K, Melke J, Mühleder S, Pultar M, Rohringer S, Priglinger E, Redl HR, Hofmann S, Holnthoner W. Microvascular Networks From Endothelial Cells and Mesenchymal Stromal Cells From Adipose Tissue and Bone Marrow: A Comparison. Front Bioeng Biotechnol 2018; 6:156. [PMID: 30410879 PMCID: PMC6209673 DOI: 10.3389/fbioe.2018.00156] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/08/2018] [Indexed: 12/17/2022] Open
Abstract
A promising approach to overcome hypoxic conditions in tissue engineered constructs is to use the potential of endothelial cells (EC) to form networks in vitro when co-cultured with a supporting cell type in a 3D environment. Adipose tissue-derived stromal cells (ASC) as well as bone marrow-derived stromal cells (BMSC) have been shown to support vessel formation of EC in vitro, but only very few studies compared the angiogenic potential of both cell types using the same model. Here, we aimed at investigating the ability of ASC and BMSC to induce network formation of EC in a co-culture model in fibrin. While vascular structures of BMSC and EC remained stable over the course of 3 weeks, ASC-EC co-cultures developed more junctions and higher network density within the same time frame. Both co-cultures showed positive staining for neural glial antigen 2 (NG2) and basal lamina proteins. This indicates that vessels matured and were surrounded by perivascular cells as well as matrix molecules involved in stabilization. Gene expression analysis revealed a significant increase of vascular endothelial growth factor (VEGF) expression in ASC-EC co-culture compared to BMSC-EC co-culture. These observations were donor-independent and highlight the importance of organotypic cell sources for vascular tissue engineering.
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Affiliation(s)
- Karoline Pill
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Johanna Melke
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Severin Mühleder
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Marianne Pultar
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Sabrina Rohringer
- Department of Biomedical Research, Medical University of Vienna, Vienna, Austria
| | - Eleni Priglinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Heinz R Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Sandra Hofmann
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
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17
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Surmacki JM, Woodhams BJ, Haslehurst A, Ponder BAJ, Bohndiek SE. Raman micro-spectroscopy for accurate identification of primary human bronchial epithelial cells. Sci Rep 2018; 8:12604. [PMID: 30135442 PMCID: PMC6105656 DOI: 10.1038/s41598-018-30407-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 07/20/2018] [Indexed: 12/25/2022] Open
Abstract
Live cell Raman micro-spectroscopy is emerging as a promising bioanalytical technique for label-free discrimination of a range of different cell types (e.g. cancer cells and fibroblasts) and behaviors (e.g. apoptosis). The aim of this study was to determine whether confocal Raman micro-spectroscopy shows sufficient sensitivity and specificity for identification of primary human bronchial epithelial cells (HBECs) to be used for live cell biological studies in vitro. We first compared cell preparation substrates and media, considering their influence on lung cell proliferation and Raman spectra, as well as methods for data acquisition, using different wavelengths (488 nm, 785 nm) and scan protocols (line, area). Evaluating these parameters using human lung cancer (A549) and fibroblast (MRC5) cell lines confirmed that line-scan data acquisition at 785 nm using complete cell media on a quartz substrate gave optimal performance. We then applied our protocol to acquisition of data from primary human bronchial epithelial cells (HBEC) derived from three independent sources, revealing an average sensitivity for different cell types of 96.3% and specificity of 95.2%. These results suggest that Raman micro-spectroscopy is suitable for delineating primary HBEC cell cultures, which in future could be used for identifying different lung cell types within co-cultures and studying the process of early carcinogenesis in lung cell culture.
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Affiliation(s)
- Jakub M Surmacki
- Department of Physics, University of Cambridge, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, United Kingdom
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, United Kingdom
| | - Benjamin J Woodhams
- Department of Physics, University of Cambridge, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, United Kingdom
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, United Kingdom
| | - Alexandria Haslehurst
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, United Kingdom
| | - Bruce A J Ponder
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, United Kingdom
| | - Sarah E Bohndiek
- Department of Physics, University of Cambridge, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, United Kingdom.
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE, United Kingdom.
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18
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Steinke M, Zunhammer F, Chatzopoulou EI, Teller H, Schütze K, Walles H, Rädler JO, Grüttner C. Rapid Analysis of Cell-Nanoparticle Interactions using Single-Cell Raman Trapping Microscopy. Angew Chem Int Ed Engl 2018; 57:4946-4950. [DOI: 10.1002/anie.201713151] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/06/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Maria Steinke
- Fraunhofer Institute for Silicate Research ISC; c/o University Hospital Würzburg; Chair of Tissue Engineering and Regenerative Medicine; Röntgenring 11 97070 Würzburg Germany
| | | | - Elisavet I. Chatzopoulou
- Ludwig-Maximilians-University Munich; Faculty of Physics; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Henrik Teller
- Micromod Partikeltechnologie GmbH; Friedrich-Barnewitz-Straße 4 18119 Rostock Germany
| | | | - Heike Walles
- Fraunhofer Institute for Silicate Research ISC; c/o University Hospital Würzburg; Chair of Tissue Engineering and Regenerative Medicine; Röntgenring 11 97070 Würzburg Germany
| | - Joachim O. Rädler
- Ludwig-Maximilians-University Munich; Faculty of Physics; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Cordula Grüttner
- Micromod Partikeltechnologie GmbH; Friedrich-Barnewitz-Straße 4 18119 Rostock Germany
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19
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Steinke M, Zunhammer F, Chatzopoulou EI, Teller H, Schütze K, Walles H, Rädler JO, Grüttner C. Rapid Analysis of Cell-Nanoparticle Interactions using Single-Cell Raman Trapping Microscopy. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201713151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Maria Steinke
- Fraunhofer Institute for Silicate Research ISC; c/o University Hospital Würzburg; Chair of Tissue Engineering and Regenerative Medicine; Röntgenring 11 97070 Würzburg Germany
| | | | - Elisavet I. Chatzopoulou
- Ludwig-Maximilians-University Munich; Faculty of Physics; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Henrik Teller
- Micromod Partikeltechnologie GmbH; Friedrich-Barnewitz-Straße 4 18119 Rostock Germany
| | | | - Heike Walles
- Fraunhofer Institute for Silicate Research ISC; c/o University Hospital Würzburg; Chair of Tissue Engineering and Regenerative Medicine; Röntgenring 11 97070 Würzburg Germany
| | - Joachim O. Rädler
- Ludwig-Maximilians-University Munich; Faculty of Physics; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Cordula Grüttner
- Micromod Partikeltechnologie GmbH; Friedrich-Barnewitz-Straße 4 18119 Rostock Germany
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20
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The role of fibrinolysis inhibition in engineered vascular networks derived from endothelial cells and adipose-derived stem cells. Stem Cell Res Ther 2018; 9:35. [PMID: 29433579 PMCID: PMC5809876 DOI: 10.1186/s13287-017-0764-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 11/22/2017] [Accepted: 12/26/2017] [Indexed: 01/05/2023] Open
Abstract
Background Co-cultures of endothelial cells with mesenchymal stem cells currently represent one of the most promising approaches in providing oxygen and nutrient supply for microvascular tissue engineering. Still, to translate this model into clinics several in vitro parameters including growth medium and scaffold degradation need to be fine-tuned. Methods We recently described the co-culture of adipose-derived stem cells with endothelial cells in fibrin, resulting in capillary formation in vitro as well as their perfusion in vivo. Here, we aimed to further characterise microvascular tube formation in fibrin by determining the role of scaffold degradation, thrombin concentration and culture conditions on vascularisation. Results We observed that inhibition of cell-mediated fibrin degradation by the commonly used inhibitor aprotinin resulted in impaired vascular network formation. Aprotinin had no effect on laminin and collagen type IV deposition or formation of tube-like structures in scaffold-free co-culture, indicating that poor vascularisation of fibrin clots is primarily caused by inhibition of plasminogen-driven fibrinolysis. Co-culture in plasminogen- and factor XIII-depleted fibrin did not result in different vascular network density compared to controls. Furthermore, we demonstrate that thrombin negatively affects vascular network density at high concentrations. However, only transient activation of incorporated endothelial cells by thrombin could be observed, thus excluding a long-term inflammatory response in tissue-engineered micro-capillaries. Finally, we show that vascularisation of fibrin scaffolds in basal medium is undermined because of increased fibrinolytic activity leading to scaffold destabilisation without aprotinin. Conclusions Taken together, our data reveal a critical role of fibrinolysis inhibition in in vitro cell-mediated vascularisation of fibrin scaffolds. Electronic supplementary material The online version of this article (10.1186/s13287-017-0764-2) contains supplementary material, which is available to authorized users.
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21
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Yu S, Joshi P, Park YJ, Yu KN, Lee MY. Deconvolution of images from 3D printed cells in layers on a chip. Biotechnol Prog 2017; 34:445-454. [PMID: 29240313 DOI: 10.1002/btpr.2591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 11/19/2017] [Indexed: 01/14/2023]
Abstract
Layer-by-layer cell printing is useful in mimicking layered tissue structures inside the human body and has great potential for being a promising tool in the field of tissue engineering, regenerative medicine, and drug discovery. However, imaging human cells cultured in multiple hydrogel layers in 3D-printed tissue constructs is challenging as the cells are not in a single focal plane. Although confocal microscopy could be a potential solution for this issue, it compromises the throughput which is a key factor in rapidly screening drug efficacy and toxicity in pharmaceutical industries. With epifluorescence microscopy, the throughput can be maintained at a cost of blurred cell images from printed tissue constructs. To rapidly acquire in-focus cell images from bioprinted tissues using an epifluorescence microscope, we created two layers of Hep3B human hepatoma cells by printing green and red fluorescently labeled Hep3B cells encapsulated in two alginate layers in a microwell chip. In-focus fluorescent cell images were obtained in high throughput using an automated epifluorescence microscopy coupled with image analysis algorithms, including three deconvolution methods in combination with three kernel estimation methods, generating a total of nine deconvolution paths. As a result, a combination of Inter-Level Intra-Level Deconvolution (ILILD) algorithm and Richardson-Lucy (RL) kernel estimation proved to be highly useful in bringing out-of-focus cell images into focus, thus rapidly yielding more sensitive and accurate fluorescence reading from the cells in different layers. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 34:445-454, 2018.
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Affiliation(s)
- Sean Yu
- Dept. of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH, 44115
| | - Pranav Joshi
- Dept. of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH, 44115
| | - Yi Ju Park
- Advanced Technology Inc. (ATI), 112 Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea
| | - Kyeong-Nam Yu
- Dept. of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH, 44115
| | - Moo-Yeal Lee
- Dept. of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH, 44115
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22
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Rohringer S, Holnthoner W, Chaudary S, Slezak P, Priglinger E, Strassl M, Pill K, Mühleder S, Redl H, Dungel P. The impact of wavelengths of LED light-therapy on endothelial cells. Sci Rep 2017; 7:10700. [PMID: 28878330 PMCID: PMC5587748 DOI: 10.1038/s41598-017-11061-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 08/17/2017] [Indexed: 11/16/2022] Open
Abstract
Low level light therapy receives increasing interest in the fields of tissue regeneration and wound healing. Several in vivo studies demonstrated the positive effects of LLLT on angiogenesis. This study aimed to investigate the underlying properties in vitro by comparing the effects of light therapy by light emitting diodes of different wavelengths on endothelial cells in vitro. Human umbilical vein endothelial cells were treated with either 475 nm, 516 nm or 635 nm light. Control cells were not illuminated. 2D proliferation was quantified by manual counting. HUVEC migration was analyzed by performing a 2D wound scratch assay and a 3D bead assay. The influence of LLLT on early vasculogenic events was determined in a 3D fibrin co-culture model with adipose-derived stem cells. Stimulation with both red and green pulsed LED light significantly increased HUVEC proliferation and 3D migration. Moreover, HUVEC showed increased 2D migration potential with green light stimulation. The treatment with blue light was ineffective. Several parameters showed that green light was even more potent to stimulate proliferation and migration of endothelial cells than clinically well-established red light therapy. Further studies have to focus on intracellular mechanisms induced by different wavelengths in order to optimize this promising therapy in tissue regeneration.
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Affiliation(s)
- Sabrina Rohringer
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Max F. Perutz Laboratories, University of Vienna, Dr. Bohr-Gasse 9/3, 1030, Vienna, Austria
| | - Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Sidrah Chaudary
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Eleni Priglinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | | | - Karoline Pill
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Severin Mühleder
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200, Vienna, Austria. .,Austrian Cluster for Tissue Regeneration, Vienna, Austria.
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23
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Haasen D, Schopfer U, Antczak C, Guy C, Fuchs F, Selzer P. How Phenotypic Screening Influenced Drug Discovery: Lessons from Five Years of Practice. Assay Drug Dev Technol 2017; 15:239-246. [PMID: 28800248 DOI: 10.1089/adt.2017.796] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Since 2011, phenotypic screening has been a trend in the pharmaceutical industry as well as in academia. This renaissance was triggered by analyses that suggested that phenotypic screening is a superior strategy to discover first-in-class drugs. Despite these promises and considerable investments, pharmaceutical research organizations have encountered considerable challenges with the approach. Few success stories have emerged in the past 5 years and companies are questioning their investment in this area. In this contribution, we outline what we have learned about success factors and challenges of phenotypic screening. We then describe how our efforts in phenotypic screening have influenced our approach to drug discovery in general. We predict that concepts from phenotypic screening will be incorporated into target-based approaches and will thus remain influential beyond the current trend.
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Affiliation(s)
- Dorothea Haasen
- 1 Novartis Institutes for BioMedical Research (NIBR) , Chemical Biology and Therapeutics (CBT), Basel, Switzerland
| | - Ulrich Schopfer
- 1 Novartis Institutes for BioMedical Research (NIBR) , Chemical Biology and Therapeutics (CBT), Basel, Switzerland
| | - Christophe Antczak
- 2 Novartis Institutes for BioMedical Research (NIBR) , Chemical Biology and Therapeutics (CBT), Cambridge, Massachusetts
| | - Chantale Guy
- 2 Novartis Institutes for BioMedical Research (NIBR) , Chemical Biology and Therapeutics (CBT), Cambridge, Massachusetts
| | - Florian Fuchs
- 1 Novartis Institutes for BioMedical Research (NIBR) , Chemical Biology and Therapeutics (CBT), Basel, Switzerland
| | - Paul Selzer
- 1 Novartis Institutes for BioMedical Research (NIBR) , Chemical Biology and Therapeutics (CBT), Basel, Switzerland
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24
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Knezevic L, Schaupper M, Mühleder S, Schimek K, Hasenberg T, Marx U, Priglinger E, Redl H, Holnthoner W. Engineering Blood and Lymphatic Microvascular Networks in Fibrin Matrices. Front Bioeng Biotechnol 2017; 5:25. [PMID: 28459049 PMCID: PMC5394507 DOI: 10.3389/fbioe.2017.00025] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/28/2017] [Indexed: 01/20/2023] Open
Abstract
Vascular network engineering is essential for nutrient delivery to tissue-engineered constructs and, consequently, their survival. In addition, the functionality of tissues also depends on tissue drainage and immune cell accessibility, which are the main functions of the lymphatic system. Engineering both the blood and lymphatic microvasculature would advance the survival and functionality of tissue-engineered constructs. The aim of this study was to isolate pure populations of lymphatic endothelial cells (LEC) and blood vascular endothelial cells (BEC) from human dermal microvascular endothelial cells and to study their network formation in our previously described coculture model with adipose-derived stromal cells (ASC) in fibrin scaffolds. We could follow the network development over a period of 4 weeks by fluorescently labeling the cells. We show that LEC and BEC form separate networks, which are morphologically distinguishable and sustainable over several weeks. In addition, lymphatic network development was dependent on vascular endothelial growth factor (VEGF)-C, resulting in denser networks with increasing VEGF-C concentration. Finally, we confirm the necessity of cell–cell contact between endothelial cells and ASC for the formation of both blood and lymphatic microvascular networks. This model represents a valuable platform for in vitro drug testing and for the future in vivo studies on lymphatic and blood microvascularization.
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Affiliation(s)
- Lea Knezevic
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mira Schaupper
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Severin Mühleder
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Katharina Schimek
- Technische Universität Berlin, Medical Biotechnology, Berlin, Germany.,TissUse GmbH, Berlin, Germany
| | | | | | - Eleni Priglinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
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25
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Wu RX, Yin Y, He XT, Li X, Chen FM. Engineering a Cell Home for Stem Cell Homing and Accommodation. ACTA ACUST UNITED AC 2017; 1:e1700004. [PMID: 32646164 DOI: 10.1002/adbi.201700004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 02/27/2017] [Indexed: 12/14/2022]
Abstract
Distilling complexity to advance regenerative medicine from laboratory animals to humans, in situ regeneration will continue to evolve using biomaterial strategies to drive endogenous cells within the human body for therapeutic purposes; this approach avoids the need for delivering ex vivo-expanded cellular materials. Ensuring the recruitment of a significant number of reparative cells from an endogenous source to the site of interest is the first step toward achieving success. Subsequently, making the "cell home" cell-friendly by recapitulating the natural extracellular matrix (ECM) in terms of its chemistry, structure, dynamics, and function, and targeting specific aspects of the native stem cell niche (e.g., cell-ECM and cell-cell interactions) to program and steer the fates of those recruited stem cells play equally crucial roles in yielding a therapeutically regenerative solution. This review addresses the key aspects of material-guided cell homing and the engineering of novel biomaterials with desirable ECM composition, surface topography, biochemistry, and mechanical properties that can present both biochemical and physical cues required for in situ tissue regeneration. This growing body of knowledge will likely become a design basis for the development of regenerative biomaterials for, but not limited to, future in situ tissue engineering and regeneration.
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Affiliation(s)
- Rui-Xin Wu
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xiao-Tao He
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xuan Li
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
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26
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Heidari Kani M, Chan EC, Young RC, Butler T, Smith R, Paul JW. 3D Cell Culturing and Possibilities for Myometrial Tissue Engineering. Ann Biomed Eng 2016; 45:1746-1757. [PMID: 27770218 DOI: 10.1007/s10439-016-1749-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 10/12/2016] [Indexed: 12/19/2022]
Abstract
Research insights into uterine function and the mechanisms of labour have been hindered by the lack of suitable animal and cellular models. The use of traditional culturing methods limits the exploration of complex uterine functions, such as cell interactions, connectivity and contractile behaviour, as it fails to mimic the three-dimensional (3D) nature of uterine cell interactions in vivo. Animal models are an option, however, use of these models is constrained by ethical considerations as well as translational limitations to humans. Evidence indicates that these limitations can be overcome by using 3D culture systems, or 3D Bioprinters, to model the in vivo cytological architecture of the tissue in an in vitro environment. 3D cultured or 3D printed cells can be used to form an artificial tissue. This artificial tissue can not only be used as an appropriate model in which to study cellular function and organisation, but could also be used for regenerative medicine purposes including organ or tissue transplantation, organ donation and obstetric care. The current review describes recent developments in cell culture that can facilitate the development of myometrial 3D structures and tissue engineering applications.
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Affiliation(s)
- Minoo Heidari Kani
- Mothers and Babies Research Centre, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia. .,Hunter Medical Research Institute, 1 Kookaburra Circuit, New Lambton Heights, NSW, 2305, Australia. .,Priority Research Centre of Reproductive Science, University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Eng-Cheng Chan
- Mothers and Babies Research Centre, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, 1 Kookaburra Circuit, New Lambton Heights, NSW, 2305, Australia.,Priority Research Centre of Reproductive Science, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Roger C Young
- Mothers and Babies Research Centre, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Trent Butler
- Mothers and Babies Research Centre, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, 1 Kookaburra Circuit, New Lambton Heights, NSW, 2305, Australia.,Priority Research Centre of Reproductive Science, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Roger Smith
- Mothers and Babies Research Centre, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, 1 Kookaburra Circuit, New Lambton Heights, NSW, 2305, Australia.,Priority Research Centre of Reproductive Science, University of Newcastle, Callaghan, NSW, 2308, Australia.,John Hunter Hospital, New Lambton Heights, NSW, 2305, Australia
| | - Jonathan W Paul
- Mothers and Babies Research Centre, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia.,Hunter Medical Research Institute, 1 Kookaburra Circuit, New Lambton Heights, NSW, 2305, Australia.,Priority Research Centre of Reproductive Science, University of Newcastle, Callaghan, NSW, 2308, Australia
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27
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Prats Mateu B, Harreither E, Schosserer M, Puxbaum V, Gludovacz E, Borth N, Gierlinger N, Grillari J. Label-free live cell imaging by Confocal Raman Microscopy identifies CHO host and producer cell lines. Biotechnol J 2016; 12. [PMID: 27440252 PMCID: PMC5244663 DOI: 10.1002/biot.201600037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 07/09/2016] [Accepted: 07/13/2016] [Indexed: 01/22/2023]
Abstract
As a possible viable and non-invasive method to identify high producing cells, Confocal Raman Microscopy was shown to be able to differentiate CHO host cell lines and derivative production clones. Cluster analysis of spectra and their derivatives was able to differentiate between different producer cell lines and a host, and also distinguished between an intracellular region of high lipid and protein content that in structure resembles the Endoplasmic Reticulum. This ability to identify the ER may be a major contributor to the identification of high producers. PCA enabled the discrimination even of host cell lines and their subclones with inherently higher production capacity. The method is thus a promising option that may contribute to early, non-invasive identification of high potential candidates during cell line development and possibly could also be used for proof of identity of established production clones.
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Affiliation(s)
- Batirtze Prats Mateu
- Institute of Physics and Materials Sciences, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Eva Harreither
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Markus Schosserer
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Verena Puxbaum
- ACIB Austrian Center of Industrial Biotechnology, Graz, Austria
| | - Elisabeth Gludovacz
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Nicole Borth
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria.,ACIB Austrian Center of Industrial Biotechnology, Graz, Austria
| | - Notburga Gierlinger
- Institute of Physics and Materials Sciences, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria
| | - Johannes Grillari
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences Vienna, Vienna, Austria.,ACIB Austrian Center of Industrial Biotechnology, Graz, Austria
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28
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Jonczyk R, Kurth T, Lavrentieva A, Walter JG, Scheper T, Stahl F. Living Cell Microarrays: An Overview of Concepts. MICROARRAYS (BASEL, SWITZERLAND) 2016; 5:E11. [PMID: 27600077 PMCID: PMC5003487 DOI: 10.3390/microarrays5020011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/09/2016] [Accepted: 05/11/2016] [Indexed: 02/06/2023]
Abstract
Living cell microarrays are a highly efficient cellular screening system. Due to the low number of cells required per spot, cell microarrays enable the use of primary and stem cells and provide resolution close to the single-cell level. Apart from a variety of conventional static designs, microfluidic microarray systems have also been established. An alternative format is a microarray consisting of three-dimensional cell constructs ranging from cell spheroids to cells encapsulated in hydrogel. These systems provide an in vivo-like microenvironment and are preferably used for the investigation of cellular physiology, cytotoxicity, and drug screening. Thus, many different high-tech microarray platforms are currently available. Disadvantages of many systems include their high cost, the requirement of specialized equipment for their manufacture, and the poor comparability of results between different platforms. In this article, we provide an overview of static, microfluidic, and 3D cell microarrays. In addition, we describe a simple method for the printing of living cell microarrays on modified microscope glass slides using standard DNA microarray equipment available in most laboratories. Applications in research and diagnostics are discussed, e.g., the selective and sensitive detection of biomarkers. Finally, we highlight current limitations and the future prospects of living cell microarrays.
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Affiliation(s)
- Rebecca Jonczyk
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, Hannover 30167, Germany.
| | - Tracy Kurth
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, Hannover 30167, Germany.
| | - Antonina Lavrentieva
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, Hannover 30167, Germany.
| | - Johanna-Gabriela Walter
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, Hannover 30167, Germany.
| | - Thomas Scheper
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, Hannover 30167, Germany.
| | - Frank Stahl
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, Hannover 30167, Germany.
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29
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Smith R, Wright KL, Ashton L. Raman spectroscopy: an evolving technique for live cell studies. Analyst 2016; 141:3590-600. [PMID: 27072718 DOI: 10.1039/c6an00152a] [Citation(s) in RCA: 175] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
One of the most exciting developments in Raman spectroscopy in the last decade has been its application to cells and tissues for diagnostic and pharmaceutical applications, and in particular its use in the analysis of cellular dynamics. Raman spectroscopy is rapidly advancing as a cell imaging method that overcomes many of the limitations of current techniques and is earning its place as a routine tool in cell biology. In this review we focus on important developments in Raman spectroscopy that have evolved into the exciting technique of live-cell Raman microscopy and highlight some of the most recent and significant applications to cell biology.
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Affiliation(s)
- Rachael Smith
- Department of Chemistry, Lancaster University, LA1 4YG, UK.
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30
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Ulusoy M, Lavrentieva A, Walter JG, Sambale F, Green M, Stahl F, Scheper T. Evaluation of CdTe/CdS/ZnS core/shell/shell quantum dot toxicity on three-dimensional spheroid cultures. Toxicol Res (Camb) 2016; 5:126-135. [PMID: 30090332 PMCID: PMC6060716 DOI: 10.1039/c5tx00236b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 07/30/2015] [Indexed: 11/21/2022] Open
Abstract
In this work, three-dimensional (3D) spheroid cultures of human adipose-derived mesenchymal stem cells (hAD-MSCs), with tissue-mimetic morphology through well developed cell-cell and cell-matrix interactions and distinct diffusion/transport characteristics, were assessed for dose-dependent toxic effects of red-emitting CdTe/CdS/ZnS quantum dots (Qdots). Morphological investigations and time-resolved microscopy analysis in addition to cell metabolic activity studies revealed that 3D spheroid cultures are more resistant to Qdot-induced cytotoxicity in comparison to conventional 2D cultures. The obtained results suggest the presence of two distinct cell populations in 2D cultures with different sensitivity to Qdots, however that effect wasn't observed in 3D spheroids. Our investigations were aimed to improve the prediction of nanotoxicity of Qdot on tissue-level and provide the essential screening steps prior to any in vivo application. Moreover, penetration ability of highly fluorescent Qdots to densely-packed spheroids will fortify the biological application of developed Qdots in tissue-like structures.
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Affiliation(s)
- Mehriban Ulusoy
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Antonina Lavrentieva
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Johanna-Gabriela Walter
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Franziska Sambale
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Mark Green
- King's College London , Department of Physics , The Strand , WC2R LS London , UK . ; Tel: +44 (0)2078 48212
| | - Frank Stahl
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
| | - Thomas Scheper
- Gottfried Wilhelm Leibniz University of Hannover , Institute of Technical Chemistry , 30167 Hanover , Germany . ; Tel: +49 (0)511 762-2968
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31
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Bocklitz TW, Guo S, Ryabchykov O, Vogler N, Popp J. Raman Based Molecular Imaging and Analytics: A Magic Bullet for Biomedical Applications!? Anal Chem 2015; 88:133-51. [DOI: 10.1021/acs.analchem.5b04665] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Thomas W. Bocklitz
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
| | - Shuxia Guo
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
| | - Oleg Ryabchykov
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
| | - Nadine Vogler
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
| | - Jürgen Popp
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- InfectoGnostics
Forschungscampus Jena e.V., Zentrum für Angewandte Forschung, Philosophenweg 7, 07743 Jena, Germany
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32
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Hasenberg T, Mühleder S, Dotzler A, Bauer S, Labuda K, Holnthoner W, Redl H, Lauster R, Marx U. Emulating human microcapillaries in a multi-organ-chip platform. J Biotechnol 2015; 216:1-10. [PMID: 26435219 DOI: 10.1016/j.jbiotec.2015.09.038] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/25/2015] [Accepted: 09/28/2015] [Indexed: 02/05/2023]
Abstract
Current microfluidic chip-based tissue culture systems lack a capillary endothelial vessel system, which would enable perfusion with blood. We utilise spatial cell cultures to populate a perfused multi-organ-chip platform-a microfluidic device recently introduced for substance testing. Complete biological vascularization of such culture systems is vital to properly emulate physiological tissue behaviour. In this study, we incorporated a fibrin scaffold into the two-organ-chip design. Herein, adipose-derived stromal cells (ASCs) directed human umbilical vein endothelial cells (HUVECs) to organise into tube-like structures. The ASCs induced tube formation of HUVECs in static and dynamic conditions. The replacement of full medium enriched with growth factors and foetal calf serum with basal medium resulted in viable cells with similar gene expression profiles. We regard this as a prerequisite for studies with organ constructs that have a need for a different medium formulation. Furthermore, we here address stability issues of the fibrin gel and fibrin composition for optimal microvessel formation.
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Affiliation(s)
- Tobias Hasenberg
- Technische Universität Berlin, Medical Biotechnology, TIB 4/4-2, Gustav-Meyer-Allee 25, 13355 Berlin, Germany; TissUse GmbH, Markgrafenstraße 18, 15528 Spreenhagen, Germany.
| | - Severin Mühleder
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Andrea Dotzler
- Technische Universität Berlin, Medical Biotechnology, TIB 4/4-2, Gustav-Meyer-Allee 25, 13355 Berlin, Germany; TissUse GmbH, Markgrafenstraße 18, 15528 Spreenhagen, Germany.
| | - Sophie Bauer
- Technische Universität Berlin, Medical Biotechnology, TIB 4/4-2, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Krystyna Labuda
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Roland Lauster
- Technische Universität Berlin, Medical Biotechnology, TIB 4/4-2, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Uwe Marx
- Technische Universität Berlin, Medical Biotechnology, TIB 4/4-2, Gustav-Meyer-Allee 25, 13355 Berlin, Germany; TissUse GmbH, Markgrafenstraße 18, 15528 Spreenhagen, Germany.
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33
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Lee DH, Bae CY, Kwon S, Park JK. User-friendly 3D bioassays with cell-containing hydrogel modules: narrowing the gap between microfluidic bioassays and clinical end-users' needs. LAB ON A CHIP 2015; 15:2379-2387. [PMID: 25857752 DOI: 10.1039/c5lc00239g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cell-containing hydrogel modules as cell-hydrogel microunits for creating a physiologically relevant 3D in vivo-like microenvironment with multiple cell types and unique extracellular matrix (ECM) compositions facilitate long-term cell maintenance and bioassays. To date, there have been many important advances in microfluidic bioassays, which incorporate hydrogel scaffolds into surface-accessible microchambers, driven by the strong demand for the application of spatiotemporally defined biochemical stimuli to construct in vivo-like conditions and perform real-time imaging of cell-matrix interactions. In keeping with the trend of fostering collaborations among biologists, clinicians, and microfluidic engineers, it is essential to create a simpler approach for coupling cell-containing hydrogel modules and an automated bioassay platform in a user-friendly format. In this article, we review recent progress in hydrogel-incorporated microfluidics for long-term cell maintenance and discuss some of the simpler and user-friendly 3D bioassay techniques combined with cell-containing hydrogel modules that can be applied to mutually beneficial collaborations with non-engineers. We anticipate that this modular and user-friendly format interfaced with existing laboratory infrastructure will help address several clinical questions in ways that extend well beyond the current 2D cell-culture systems.
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Affiliation(s)
- Do-Hyun Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
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