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Chen ML, Qian P, Xia TY, Yu CM, Wu ZQ, Bao N, Huo XL. Sensitive electrochemical flow injection analysis of H 2O 2 released from cells with a pass-through mode. Anal Chim Acta 2024; 1302:342516. [PMID: 38580411 DOI: 10.1016/j.aca.2024.342516] [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: 01/22/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/07/2024]
Abstract
Conventional plate electrodes were commonly used in electrochemical flow injection analysis and only part of molecules diffused to the plane of electrodes could be detected, which would limit the performance of electrochemical detection. In this study, a low-cost native stainless steel wire mesh (SSWM) electrode was integrated into a 3D-printed device for electrochemical flow injection analysis with a pass-through mode, which is different compared with previous flow-through mode. This strategy was applied for sensitive analysis of hydrogen peroxide (H2O2) released from cells. Under the optimal conditions (the applied potentials, the flow rate and the sample volume), the device exhibits high sensitivity toward H2O2. Linear relationships could be achieved between electrochemical responses and the concentration of H2O2 ranging from 1 nM to 1 mM. The excellent analytical performance of the SSWM-based device could be attributed to the pass-through mode based on the mesh microstructure and intrinsic catalytic properties for H2O2 by stainless steel. This approach could be further successfully extended for screening of H2O2 released from HeLa cells with electrochemical responses linear to the number of cells in a range of 3 - 1.35 × 104 cells with an injection volume of 30 μL. This study revealed the potential of mesh electrodes in electrochemical flow injection analysis for cellular function and pathology and its possible extension in cell counting and on-line analysis.
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Affiliation(s)
- Mei-Ling Chen
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China
| | - Pu Qian
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China
| | - Tian-Yu Xia
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China
| | - Chun-Mei Yu
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China
| | - Zeng-Qiang Wu
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China.
| | - Ning Bao
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China.
| | - Xiao-Lei Huo
- School of Public Health, Nantong University, Nantong, Jiangsu, 226019, China.
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2
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Leal F, Zeiringer S, Jeitler R, Costa PF, Roblegg E. A comprehensive overview of advanced dynamic in vitro intestinal and hepatic cell culture models. Tissue Barriers 2024; 12:2163820. [PMID: 36680530 PMCID: PMC10832944 DOI: 10.1080/21688370.2022.2163820] [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: 08/23/2022] [Accepted: 12/22/2022] [Indexed: 01/22/2023] Open
Abstract
Orally administered drugs pass through the gastrointestinal tract before being absorbed in the small intestine and metabolised in the liver. To test the efficacy and toxicity of drugs, animal models are often employed; however, they are not suitable for investigating drug-tissue interactions and making reliable predictions, since the human organism differs drastically from animals in terms of absorption, distribution, metabolism and excretion of substances. Likewise, simple static in vitro cell culture systems currently used in preclinical drug screening often do not resemble the native characteristics of biological barriers. Dynamic models, on the other hand, provide in vivo-like cell phenotypes and functionalities that offer great potential for safety and efficacy prediction. Herein, current microfluidic in vitro intestinal and hepatic models are reviewed, namely single- and multi-tissue micro-bioreactors, which are associated with different methods of cell cultivation, i.e., scaffold-based versus scaffold-free.
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Affiliation(s)
- Filipa Leal
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal
| | - Scarlett Zeiringer
- Department of Pharmaceutical Technology and Biopharmacy, University of Graz, Institute of Pharmaceutical Sciences, Universitaetsplatz 1, Graz, Austria
| | - Ramona Jeitler
- Department of Pharmaceutical Technology and Biopharmacy, University of Graz, Institute of Pharmaceutical Sciences, Universitaetsplatz 1, Graz, Austria
| | - Pedro F. Costa
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal
| | - Eva Roblegg
- Department of Pharmaceutical Technology and Biopharmacy, University of Graz, Institute of Pharmaceutical Sciences, Universitaetsplatz 1, Graz, Austria
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3
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Zhu C, Lu Y, Peng W, Gao H, Cao X, Su M, Wu Z, Huo X, Yu C. Stretchable Sponge-Based Electrochemical Biosensor for Real-Time Sensing of Cells in Three-Dimensional Culture. Anal Chem 2023; 95:16885-16891. [PMID: 37937709 DOI: 10.1021/acs.analchem.3c02676] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
For the study of cell biology, real-time information on cell physiological processes will be more accurate and closer to the in vivo condition in a three-dimensional (3D) culture system. Although most reported 3D cell culture scaffolds can better mimic the in vivo dynamic microenvironment, the real-time analysis technique is deficient or lacking. Herein, a stretchable and conductive 3D scaffold is developed to construct an electrochemical biosensor for real-time monitoring of cell release in 3D culture under stimulation of drug stimulant and mechanical force. In our design, the polyurethane sponge (PU) dipped with conductive carbon ink (CC/PU) was used as a conductive scaffold, and gold nanoparticles (nano-Au) were electrodeposited on the CC/PU (nano-Au CC/PU) to improve the electrochemical sensing performance. The prepared nano-Au CC/PU scaffold exhibits a good electrocatalytic ability to H2O2 with a linear range from 20 nM to 43 μM. Due to the great biocompatibility, HeLa cells can be cultured directly on the nano-Au CC/PU and the in situ and real-time tracking of H2O2 secretion from cells was achieved. The results demonstrate that both the drug stimulant and mechanical force can rapidly activate the release of reactive oxygen species. This study indicates that the stretchable 3D sensing scaffold has good potential for cell biology research in an in vivo-like microenvironment and can be extensively used in the fields of tissue engineering, drug screening, and pathological research.
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Affiliation(s)
- Cailing Zhu
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Yanling Lu
- Qidong Hospital of Traditional Chinese Medicine, Qidong, Jiangsu 226200, China
| | - Wenjing Peng
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Hui Gao
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Xiaoqing Cao
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Mengjie Su
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Zengqiang Wu
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Xiaolei Huo
- School of Public Health, Nantong University, Nantong 226019, P. R. China
| | - Chunmei Yu
- School of Public Health, Nantong University, Nantong 226019, P. R. China
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Dzobo K, Dandara C. The Extracellular Matrix: Its Composition, Function, Remodeling, and Role in Tumorigenesis. Biomimetics (Basel) 2023; 8:146. [PMID: 37092398 PMCID: PMC10123695 DOI: 10.3390/biomimetics8020146] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/25/2023] Open
Abstract
The extracellular matrix (ECM) is a ubiquitous member of the body and is key to the maintenance of tissue and organ integrity. Initially thought to be a bystander in many cellular processes, the extracellular matrix has been shown to have diverse components that regulate and activate many cellular processes and ultimately influence cell phenotype. Importantly, the ECM's composition, architecture, and stiffness/elasticity influence cellular phenotypes. Under normal conditions and during development, the synthesized ECM constantly undergoes degradation and remodeling processes via the action of matrix proteases that maintain tissue homeostasis. In many pathological conditions including fibrosis and cancer, ECM synthesis, remodeling, and degradation is dysregulated, causing its integrity to be altered. Both physical and chemical cues from the ECM are sensed via receptors including integrins and play key roles in driving cellular proliferation and differentiation and in the progression of various diseases such as cancers. Advances in 'omics' technologies have seen an increase in studies focusing on bidirectional cell-matrix interactions, and here, we highlight the emerging knowledge on the role played by the ECM during normal development and in pathological conditions. This review summarizes current ECM-targeted therapies that can modify ECM tumors to overcome drug resistance and better cancer treatment.
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Affiliation(s)
- Kevin Dzobo
- Medical Research Council, SA Wound Healing Unit, Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa
| | - Collet Dandara
- Division of Human Genetics and Institute of Infectious Disease and Molecular Medicine, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa
- The South African Medical Research Council-UCT Platform for Pharmacogenomics Research and Translation, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa
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5
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Review on Bioinspired Design of ECM-Mimicking Scaffolds by Computer-Aided Assembly of Cell-Free and Cell Laden Micro-Modules. J Funct Biomater 2023; 14:jfb14020101. [PMID: 36826900 PMCID: PMC9964438 DOI: 10.3390/jfb14020101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Tissue engineering needs bioactive drug delivery scaffolds capable of guiding cell biosynthesis and tissue morphogenesis in three dimensions. Several strategies have been developed to design and fabricate ECM-mimicking scaffolds suitable for directing in vitro cell/scaffold interaction, and controlling tissue morphogenesis in vivo. Among these strategies, emerging computer aided design and manufacturing processes, such as modular tissue unit patterning, promise to provide unprecedented control over the generation of biologically and biomechanically competent tissue analogues. This review discusses recent studies and highlights the role of scaffold microstructural properties and their drug release capability in cell fate control and tissue morphogenesis. Furthermore, the work highlights recent advances in the bottom-up fabrication of porous scaffolds and hybrid constructs through the computer-aided assembly of cell-free and/or cell-laden micro-modules. The advantages, current limitations, and future challenges of these strategies are described and discussed.
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The Challenges of O 2 Detection in Biological Fluids: Classical Methods and Translation to Clinical Applications. Int J Mol Sci 2022; 23:ijms232415971. [PMID: 36555613 PMCID: PMC9786805 DOI: 10.3390/ijms232415971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Dissolved oxygen (DO) is deeply involved in preserving the life of cellular tissues and human beings due to its key role in cellular metabolism: its alterations may reflect important pathophysiological conditions. DO levels are measured to identify pathological conditions, explain pathophysiological mechanisms, and monitor the efficacy of therapeutic approaches. This is particularly relevant when the measurements are performed in vivo but also in contexts where a variety of biological and synthetic media are used, such as ex vivo organ perfusion. A reliable measurement of medium oxygenation ensures a high-quality process. It is crucial to provide a high-accuracy, real-time method for DO quantification, which could be robust towards different medium compositions and temperatures. In fact, biological fluids and synthetic clinical fluids represent a challenging environment where DO interacts with various compounds and can change continuously and dynamically, and further precaution is needed to obtain reliable results. This study aims to present and discuss the main oxygen detection and quantification methods, focusing on the technical needs for their translation to clinical practice. Firstly, we resumed all the main methodologies and advancements concerning dissolved oxygen determination. After identifying the main groups of all the available techniques for DO sensing based on their mechanisms and applicability, we focused on transferring the most promising approaches to a clinical in vivo/ex vivo setting.
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7
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Patella B, Vincenzo SD, Zanca C, Bollaci L, Ferraro M, Giuffrè MR, Cipollina C, Bruno MG, Aiello G, Russo M, Inguanta R, Pace E. Electrochemical Quantification of H 2O 2 Released by Airway Cells Growing in Different Culture Media. MICROMACHINES 2022; 13:mi13101762. [PMID: 36296115 PMCID: PMC9611932 DOI: 10.3390/mi13101762] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 05/30/2023]
Abstract
Quantification of oxidative stress is a challenging task that can help in monitoring chronic inflammatory respiratory airway diseases. Different studies can be found in the literature regarding the development of electrochemical sensors for H2O2 in cell culture medium to quantify oxidative stress. However, there are very limited data regarding the impact of the cell culture medium on the electrochemical quantification of H2O2. In this work, we studied the effect of different media (RPMI, MEM, DMEM, Ham's F12 and BEGM/DMEM) on the electrochemical quantification of H2O2. The used electrode is based on reduced graphene oxide (rGO) and gold nanoparticles (AuNPs) and was obtained by co-electrodeposition. To reduce the electrode fouling by the medium, the effect of dilution was investigated using diluted (50% v/v in PBS) and undiluted media. With the same aim, two electrochemical techniques were employed, chronoamperometry (CH) and linear scan voltammetry (LSV). The influence of different interfering species and the effect of the operating temperature of 37 °C were also studied in order to simulate the operation of the sensor in the culture plate. The LSV technique made the sensor adaptable to undiluted media because the test time is short, compared with the CH technique, reducing the electrode fouling. The long-term stability of the sensors was also evaluated by testing different storage conditions. By storing the electrode at 4 °C, the sensor performance was not reduced for up to 21 days. The sensors were validated measuring H2O2 released by two different human bronchial epithelial cell lines (A549, 16HBE) and human primary bronchial epithelial cells (PBEC) grown in RPMI, MEM and BEGM/DMEM media. To confirm the results obtained with the sensor, the release of reactive oxygen species was also evaluated with a standard flow cytometry technique. The results obtained with the two techniques were very similar. Thus, the LSV technique permits using the proposed sensor for an effective oxidative stress quantification in different culture media and without dilution.
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Affiliation(s)
- Bernardo Patella
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | - Serena Di Vincenzo
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
| | - Claudio Zanca
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | - Luciano Bollaci
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | - Maria Ferraro
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
| | | | - Chiara Cipollina
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
- Ri.MED Foundation, 90146 Palermo, Italy
| | | | - Giuseppe Aiello
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | | | | | - Elisabetta Pace
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
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8
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Hassan RYA. Advances in Electrochemical Nano-Biosensors for Biomedical and Environmental Applications: From Current Work to Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22197539. [PMID: 36236638 PMCID: PMC9573286 DOI: 10.3390/s22197539] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 05/17/2023]
Abstract
Modern life quality is strongly supported by the advances made in biosensors, which has been attributed to their crucial and viable contribution in point-of-care (POC) technology developments. POC devices are exploited for the fast tracing of disease progression, rapid analysis of water, and food quality assessment. Blood glucose meters, home pregnancy strips, and COVID-19 rapid tests all represent common examples of successful biosensors. Biosensors can provide great specificity due to the incorporation of selective bio-recognition elements and portability at significantly reduced costs. Electrochemical biosensor platforms are one of the most advantageous of these platforms because they offer many merits, such as being cheap, selective, specific, rapid, and portable. Furthermore, they can be incorporated into smartphones and various analytical approaches in order to increase their sensitivity and many other properties. As a very broad and interdisciplinary area of research and development, biosensors include all disciplines and backgrounds from materials science, chemistry, physics, medicine, microbiology/biology, and engineering. Accordingly, in this state-of-the-art article, historical background alongside the long journey of biosensing construction and development, starting from the Clark oxygen electrode until reaching highly advanced wearable stretchable biosensing devices, are discussed. Consequently, selected examples among the miscellaneous applications of nanobiosensors (such as microbial detection, cancer diagnosis, toxicity analysis, food quality-control assurance, point of care, and health prognosis) are described. Eventually, future perspectives for intelligent biosensor commercialization and exploitation in real-life that is going to be supported by machine learning and artificial intelligence (AI) are stated.
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Affiliation(s)
- Rabeay Y. A. Hassan
- Applied Organic Chemistry Department, National Research Centre Dokki, Cairo 12622, Egypt; ; Tel.: +20-11292-16152
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
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9
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Arafa KK, Ibrahim A, Mergawy R, El-Sherbiny IM, Febbraio F, Hassan RYA. Advances in Cancer Diagnosis: Bio-Electrochemical and Biophysical Characterizations of Cancer Cells. MICROMACHINES 2022; 13:mi13091401. [PMID: 36144024 PMCID: PMC9504238 DOI: 10.3390/mi13091401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/21/2022] [Accepted: 08/23/2022] [Indexed: 05/09/2023]
Abstract
Cancer is a worldwide leading cause of death, and it is projected that newly diagnosed cases globally will reach 27.5 million each year by 2040. Cancers (malignant tumors), unlike benign tumors are characterized by structural and functional dedifferentiation (anaplasia), breaching of the basement membrane, spreading to adjacent tissues (invasiveness), and the capability to spread to distant sites (metastasis). In the cancer biology research field, understanding and characterizing cancer metastasis as well as features of cell death (apoptosis) is considered a technically challenging subject of study and clinically is very critical and necessary. Therefore, in addition to the cytochemical methods traditionally used, novel biophysical and bioelectrochemical techniques (e.g., cyclic voltammetry and electrochemical impedance spectroscopy), atomic force microscopy, and electron microscopic methods are increasingly being deployed to better understand these processes. Implementing those methods at the preclinical level enables the rapid screening of new anticancer drugs with understanding of their central mechanism for cancer therapy. In this review, principles and basic concepts of new techniques suggested for metastasis, and apoptosis examinations for research purposes are introduced, along with examples of each technique. From our recommendations, the privilege of combining the bio-electrochemical and biosensing techniques with the conventional cytochemical methods either for research or for biomedical diagnosis should be emphasized.
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Affiliation(s)
- Kholoud K. Arafa
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
| | - Alaa Ibrahim
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
| | - Reem Mergawy
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
| | - Ibrahim M. El-Sherbiny
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
| | - Ferdinando Febbraio
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), Via P. Castellino 111, 80131 Naples, Italy
| | - Rabeay Y. A. Hassan
- Nanoscience Program, University of Science and Technology (UST), Zewail City of Science and Technology, Giza 12578, Egypt
- Correspondence: ; Tel.: +20-1129216152
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Zmrhal V, Svoradova A, Batik A, Slama P. Three-Dimensional Avian Hematopoietic Stem Cell Cultures as a Model for Studying Disease Pathogenesis. Front Cell Dev Biol 2022; 9:730804. [PMID: 35127695 PMCID: PMC8811169 DOI: 10.3389/fcell.2021.730804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022] Open
Abstract
Three-dimensional (3D) cell culture is attracting increasing attention today because it can mimic tissue environments and provide more realistic results than do conventional cell cultures. On the other hand, very little attention has been given to using 3D cell cultures in the field of avian cell biology. Although mimicking the bone marrow niche is a classic challenge of mammalian stem cell research, experiments have never been conducted in poultry on preparing in vitro the bone marrow niche. It is well known, however, that all diseases cause immunosuppression and target immune cells and their development. Hematopoietic stem cells (HSC) reside in the bone marrow and constitute a source for immune cells of lymphoid and myeloid origins. Disease prevention and control in poultry are facing new challenges, such as greater use of alternative breeding systems and expanding production of eggs and chicken meat in developing countries. Moreover, the COVID-19 pandemic will draw greater attention to the importance of disease management in poultry because poultry constitutes a rich source of zoonotic diseases. For these reasons, and because they will lead to a better understanding of disease pathogenesis, in vivo HSC niches for studying disease pathogenesis can be valuable tools for developing more effective disease prevention, diagnosis, and control. The main goal of this review is to summarize knowledge about avian hematopoietic cells, HSC niches, avian immunosuppressive diseases, and isolation of HSC, and the main part of the review is dedicated to using 3D cell cultures and their possible use for studying disease pathogenesis with practical examples. Therefore, this review can serve as a practical guide to support further preparation of 3D avian HSC niches to study the pathogenesis of avian diseases.
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Affiliation(s)
- Vladimir Zmrhal
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Andrea Svoradova
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
- NPPC, Research Institute for Animal Production in Nitra, Luzianky, Slovak Republic
| | - Andrej Batik
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
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Utagawa Y, Hiramoto K, Nashimoto Y, Ino K, Shiku H. In vitro electrochemical assays for vascular cells and organs. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Yoshinobu Utagawa
- Graduate School of Environmental Studies Tohoku University Aoba‐ku Sendai Japan
| | - Kaoru Hiramoto
- Graduate School of Environmental Studies Tohoku University Aoba‐ku Sendai Japan
| | - Yuji Nashimoto
- Frontier Research Institute for Interdisciplinary Sciences Tohoku University Aoba‐ku Sendai Japan
- Graduate School of Engineering Tohoku University Aoba‐ku Sendai Japan
| | - Kosuke Ino
- Graduate School of Engineering Tohoku University Aoba‐ku Sendai Japan
| | - Hitoshi Shiku
- Graduate School of Engineering Tohoku University Aoba‐ku Sendai Japan
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12
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Song X, Zang Q, Zare RN. Hydrogen-Deuterium Exchange Desorption Electrospray Ionization Mass Spectrometry Visualizes an Acidic Tumor Microenvironment. Anal Chem 2021; 93:10411-10417. [PMID: 34279072 DOI: 10.1021/acs.analchem.1c02026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report that microdroplet hydrogen-deuterium exchange (HDX) detected by desorption electrospray ionization mass spectrometry imaging (DESI-MSI) allows the measurement of the acidity of a tissue sample. The integration of HDX and DESI-MSI has been applied to visualize the acidic tumor microenvironment (TME). HDX-DESI-MSI enables the simultaneous collection of regional pH variation and its corresponding in-depth metabolomic changes. This technique is a cost-effective tool for providing insight into the pH-dependent tumor metabolism heterogeneity.
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Affiliation(s)
- Xiaowei Song
- Stanford University, Department of Chemistry, Stanford, California 94305, United States.,Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Qingce Zang
- Institute of Materia Medica, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100050, China
| | - Richard N Zare
- Stanford University, Department of Chemistry, Stanford, California 94305, United States
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