1
|
Liu B, Hu S, Wang X. Applications of single-cell technologies in drug discovery for tumor treatment. iScience 2024; 27:110486. [PMID: 39171294 PMCID: PMC11338156 DOI: 10.1016/j.isci.2024.110486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024] Open
Abstract
Single-cell technologies have been known as advanced and powerful tools to study tumor biological systems at the single-cell resolution and are playing increasingly critical roles in multiple stages of drug discovery and development. Specifically, single-cell technologies can promote the discovery of drug targets, help high-throughput screening at single-cell level, and contribute to pharmacokinetic studies of anti-tumor drugs. Emerging single-cell analysis technologies have been developed to further integrating multidimensional single-cell molecular features, expanding the scale of single-cell data, profiling phenotypic impact of genes in single cell, and providing full-length coverage single-cell sequencing. In this review, we systematically summarized the applications of single-cell technologies in various sections of drug discovery for tumor treatment, including target identification, high-throughput drug screening, and pharmacokinetic evaluation and highlighted emerging single-cell technologies in providing in-depth understanding of tumor biology. Single-cell-technology-based drug discovery is expected to further optimize therapeutic strategies and improve clinical outcomes of tumor patients.
Collapse
Affiliation(s)
- Bingyu Liu
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, China
| | - Shunfeng Hu
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, China
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
- Taishan Scholars Program of Shandong Province, Jinan, Shandong 250021, China
| |
Collapse
|
2
|
Zhou Y, Li H, Tse E, Sun H. Metal-detection based techniques and their applications in metallobiology. Chem Sci 2024; 15:10264-10280. [PMID: 38994399 PMCID: PMC11234822 DOI: 10.1039/d4sc00108g] [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: 01/06/2024] [Accepted: 06/05/2024] [Indexed: 07/13/2024] Open
Abstract
Metals are essential for human health and play a crucial role in numerous biological processes and pathways. Gaining a deeper insight into these biological events will facilitate novel strategies for disease prevention, early detection, and personalized treatment. In recent years, there has been significant progress in the development of metal-detection based techniques from single cell metallome and proteome profiling to multiplex imaging, which greatly enhance our comprehension of the intricate roles played by metals in complex biological systems. This perspective summarizes the recent progress in advanced metal-detection based techniques and highlights successful applications in elucidating the roles of metals in biology and medicine. Technologies including machine learning that couple with single-cell analysis such as mass cytometry and their application in metallobiology, cancer biology and immunology are also emphasized. Finally, we provide insights into future prospects and challenges involved in metal-detection based techniques, with the aim of inspiring further methodological advancements and applications that are accessible to chemists, biologists, and clinicians.
Collapse
Affiliation(s)
- Ying Zhou
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Hongyan Li
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Eric Tse
- Department of Medicine, LKS Faculty of Medicine, The University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Hongzhe Sun
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| |
Collapse
|
3
|
Braun G, Schaier M, Werner P, Theiner S, Zanghellini J, Wisgrill L, Fyhrquist N, Koellensperger G. MeXpose-A Modular Imaging Pipeline for the Quantitative Assessment of Cellular Metal Bioaccumulation. JACS AU 2024; 4:2197-2210. [PMID: 38938797 PMCID: PMC11200229 DOI: 10.1021/jacsau.4c00154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 06/29/2024]
Abstract
MeXpose is an end-to-end image analysis pipeline designed for mechanistic studies of metal exposure, providing spatial single-cell metallomics using laser ablation-inductively coupled plasma time-of-flight mass spectrometry (LA-ICP-TOFMS). It leverages the high-resolution capabilities of low-dispersion laser ablation setups, a standardized approach to quantitative bioimaging, and the toolbox of immunohistochemistry using metal-labeled antibodies for cellular phenotyping. MeXpose uniquely unravels quantitative metal bioaccumulation (sub-fg range per cell) in phenotypically characterized tissue. Furthermore, the full scope of single-cell metallomics is offered through an extended mass range accessible by ICP-TOFMS instrumentation (covering isotopes from m/z 14-256). As a showcase, an ex vivo human skin model exposed to cobalt chloride (CoCl2) was investigated. For the first time, metal permeation was studied at single-cell resolution, showing high cobalt (Co) accumulation in the epidermis, particularly in mitotic basal cells, which correlated with DNA damage. Significant Co deposits were also observed in vascular cells, with notably lower levels in dermal fibers. MeXpose provides unprecedented insights into metal bioaccumulation with the ability to explore relationships between metal exposure and cellular responses on a single-cell level, paving the way for advanced toxicological and therapeutic studies.
Collapse
Affiliation(s)
- Gabriel Braun
- Institute
of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
- Vienna
Doctoral School in Chemistry (DoSChem), University of Vienna, 1090 Vienna, Austria
| | - Martin Schaier
- Institute
of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
- Vienna
Doctoral School in Chemistry (DoSChem), University of Vienna, 1090 Vienna, Austria
| | - Paulina Werner
- Institute
of Environmental Medicine, Karolinska Institutet, 17165 Solna, Sweden
| | - Sarah Theiner
- Institute
of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Jürgen Zanghellini
- Institute
of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Lukas Wisgrill
- Division
of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department
of Pediatrics and Adolescent Medicine, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
- Exposome
Austria, Research Infrastructure and National
EIRENE Hub, 1090 Vienna, Austria
| | - Nanna Fyhrquist
- Institute
of Environmental Medicine, Karolinska Institutet, 17165 Solna, Sweden
| | - Gunda Koellensperger
- Institute
of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
- Exposome
Austria, Research Infrastructure and National
EIRENE Hub, 1090 Vienna, Austria
| |
Collapse
|
4
|
Jones RT, Scholtes M, Goodspeed A, Akbarzadeh M, Mohapatra S, Feldman LE, Vekony H, Jean A, Tilton CB, Orman MV, Romal S, Deiter C, Kan TW, Xander N, Araki SP, Joshi M, Javaid M, Clambey ET, Layer R, Laajala TD, Parker SJ, Mahmoudi T, Zuiverloon TC, Theodorescu D, Costello JC. NPEPPS Is a Druggable Driver of Platinum Resistance. Cancer Res 2024; 84:1699-1718. [PMID: 38535994 PMCID: PMC11094426 DOI: 10.1158/0008-5472.can-23-1976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/20/2023] [Accepted: 02/29/2024] [Indexed: 04/05/2024]
Abstract
There is an unmet need to improve the efficacy of platinum-based cancer chemotherapy, which is used in primary and metastatic settings in many cancer types. In bladder cancer, platinum-based chemotherapy leads to better outcomes in a subset of patients when used in the neoadjuvant setting or in combination with immunotherapy for advanced disease. Despite such promising results, extending the benefits of platinum drugs to a greater number of patients is highly desirable. Using the multiomic assessment of cisplatin-responsive and -resistant human bladder cancer cell lines and whole-genome CRISPR screens, we identified puromycin-sensitive aminopeptidase (NPEPPS) as a driver of cisplatin resistance. NPEPPS depletion sensitized resistant bladder cancer cells to cisplatin in vitro and in vivo. Conversely, overexpression of NPEPPS in sensitive cells increased cisplatin resistance. NPEPPS affected treatment response by regulating intracellular cisplatin concentrations. Patient-derived organoids (PDO) generated from bladder cancer samples before and after cisplatin-based treatment, and from patients who did not receive cisplatin, were evaluated for sensitivity to cisplatin, which was concordant with clinical response. In the PDOs, depletion or pharmacologic inhibition of NPEPPS increased cisplatin sensitivity, while NPEPPS overexpression conferred resistance. Our data present NPEPPS as a druggable driver of cisplatin resistance by regulating intracellular cisplatin concentrations. SIGNIFICANCE Targeting NPEPPS, which induces cisplatin resistance by controlling intracellular drug concentrations, is a potential strategy to improve patient responses to platinum-based therapies and lower treatment-associated toxicities.
Collapse
Affiliation(s)
- Robert T. Jones
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Mathijs Scholtes
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Andrew Goodspeed
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Maryam Akbarzadeh
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Biochemistry, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Saswat Mohapatra
- Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
| | - Lily Elizabeth Feldman
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Hedvig Vekony
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Annie Jean
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Charlene B. Tilton
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Michael V. Orman
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Shahla Romal
- Department of Biochemistry, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Cailin Deiter
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Tsung Wai Kan
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Nathaniel Xander
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Stephanie P. Araki
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Molishree Joshi
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Functional Genomics Facility, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Mahmood Javaid
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Eric T. Clambey
- Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Ryan Layer
- Computer Science Department, University of Colorado, Boulder, Colorado
- BioFrontiers Institute, University of Colorado, Boulder, Colorado
| | - Teemu D. Laajala
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Department of Mathematics and Statistics, University of Turku, Turku, Finland
| | - Sarah J. Parker
- Smidt Heart Institute and Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Tokameh Mahmoudi
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Biochemistry, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Tahlita C.M. Zuiverloon
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Dan Theodorescu
- Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, California
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - James C. Costello
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| |
Collapse
|
5
|
Liu J, Chen B, Zhang R, Li Y, Chen R, Zhu S, Wen S, Luan T. Recent progress in analytical strategies of arsenic-binding proteomes in living systems. Anal Bioanal Chem 2023; 415:6915-6929. [PMID: 37410126 DOI: 10.1007/s00216-023-04812-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/10/2023] [Accepted: 06/15/2023] [Indexed: 07/07/2023]
Abstract
Arsenic (As) is one of the most concerning elements due to its high exposure risks to organisms and ecosystems. The interaction between arsenicals and proteins plays a pivotal role in inducing their biological effects on living systems, e.g., arsenicosis. In this review article, the recent advances in analytical techniques and methods of As-binding proteomes were well summarized and discussed, including chromatographic separation and purification, biotin-streptavidin pull-down probes, in situ imaging using novel fluorescent probes, and protein identification. These analytical technologies could provide a growing body of knowledge regarding the composition, level, and distribution of As-binding proteomes in both cells and biological samples, even at the organellar level. The perspectives on analysis of As-binding proteomes are also proposed, e.g., isolation and identification of minor proteins, in vivo targeted protein degradation (TPD) technologies, and spatial As-binding proteomics. The application and development of sensitive, accurate, and high-throughput methodologies of As-binding proteomics would enable us to address the key molecular mechanisms underlying the adverse health effects of arsenicals.
Collapse
Affiliation(s)
- Jiahui Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Baowei Chen
- Southern Marine Science and Engineering Guangdong Laboratory, School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China
| | - Ruijia Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yizheng Li
- Southern Marine Science and Engineering Guangdong Laboratory, School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China
| | - Ruohong Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Siqi Zhu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China
| | - Shijun Wen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Tiangang Luan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
| |
Collapse
|
6
|
Hu H, Feng Z, Shuai XS, Lyu J, Li X, Lin H, Shuai J. Identifying SARS-CoV-2 infected cells with scVDN. Front Microbiol 2023; 14:1236653. [PMID: 37492254 PMCID: PMC10364606 DOI: 10.3389/fmicb.2023.1236653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/26/2023] [Indexed: 07/27/2023] Open
Abstract
Introduction Single-cell RNA sequencing (scRNA-seq) is a powerful tool for understanding cellular heterogeneity and identifying cell types in virus-related research. However, direct identification of SARS-CoV-2-infected cells at the single-cell level remains challenging, hindering the understanding of viral pathogenesis and the development of effective treatments. Methods In this study, we propose a deep learning framework, the single-cell virus detection network (scVDN), to predict the infection status of single cells. The scVDN is trained on scRNA-seq data from multiple nasal swab samples obtained from several contributors with varying cell types. To objectively evaluate scVDN's performance, we establish a model evaluation framework suitable for real experimental data. Results and Discussion Our results demonstrate that scVDN outperforms four state-of-the-art machine learning models in identifying SARS-CoV-2-infected cells, even with extremely imbalanced labels in real data. Specifically, scVDN achieves a perfect AUC score of 1 in four cell types. Our findings have important implications for advancing virus research and improving public health by enabling the identification of virus-infected cells at the single-cell level, which is critical for diagnosing and treating viral infections. The scVDN framework can be applied to other single-cell virus-related studies, and we make all source code and datasets publicly available on GitHub at https://github.com/studentiz/scvdn.
Collapse
Affiliation(s)
- Huan Hu
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
- Wenzhou Institute and Wenzhou Key Laboratory of Biophysics, University of Chinese Academy of Sciences, Wenzhou, China
- National Institute for Data Science in Health and Medicine, and State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Xiamen University, Xiamen, China
| | - Zhen Feng
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
| | - Xinghao Steven Shuai
- Department of Biomedical Science, University of California Riverside, Riverside, CA, United States
| | - Jie Lyu
- Wenzhou Institute and Wenzhou Key Laboratory of Biophysics, University of Chinese Academy of Sciences, Wenzhou, China
| | - Xiang Li
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
| | - Hai Lin
- Wenzhou Institute and Wenzhou Key Laboratory of Biophysics, University of Chinese Academy of Sciences, Wenzhou, China
| | - Jianwei Shuai
- Department of Physics, and Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Xiamen, China
- Wenzhou Institute and Wenzhou Key Laboratory of Biophysics, University of Chinese Academy of Sciences, Wenzhou, China
- National Institute for Data Science in Health and Medicine, and State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, Xiamen University, Xiamen, China
| |
Collapse
|
7
|
da Silva ABS, Arruda MAZ. Single-cell ICP-MS to address the role of trace elements at a cellular level. J Trace Elem Med Biol 2023; 75:127086. [PMID: 36215757 DOI: 10.1016/j.jtemb.2022.127086] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 12/13/2022]
Abstract
The heterogeneity properties shown by cells or unicellular organisms have led to the development of analytical methods at the single-cell level. In this sense, considering the importance of trace elements in these biological systems, the inductively coupled plasma mass spectrometer (ICP-MS) configured for analyzing single cell has presented a high potential to assess the evaluation of elements in cells. Moreover, advances in instrumentation, such as coupling laser ablation to the tandem configuration (ICP-MS/MS), or alternative mass analyzers (ICP-SFMS and ICP-TOFMS), brought significant benefits, including sensitivity improvement, high-resolution imaging, and the cell fingerprint. From this perspective, the single-cell ICP-MS has been widely reported in studies involving many fields, from oncology to environmental research. Hence, it has contributed to finding important results, such as elucidating nanoparticle toxicity at the cellular level and vaccine development. Therefore, in this review, the theory of single-cell ICP-MS analysis is explored, and the applications in this field are pointed out. In addition, the instrumentation advances for single-cell ICP-MS are addressed.
Collapse
Affiliation(s)
- Ana Beatriz Santos da Silva
- Spectrometry, Sample Preparation and Mechanization Group, Institute of Chemistry, University of Campinas - Unicamp, P.O. Box 6154, Campinas, SP 13083-970, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, University of Campinas - Unicamp, P.O. Box 6154, Campinas, SP 13083-970, Brazil.
| | - Marco Aurélio Zezzi Arruda
- Spectrometry, Sample Preparation and Mechanization Group, Institute of Chemistry, University of Campinas - Unicamp, P.O. Box 6154, Campinas, SP 13083-970, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, University of Campinas - Unicamp, P.O. Box 6154, Campinas, SP 13083-970, Brazil
| |
Collapse
|
8
|
Resano M, Aramendía M, García-Ruiz E, Bazo A, Bolea-Fernandez E, Vanhaecke F. Living in a transient world: ICP-MS reinvented via time-resolved analysis for monitoring single events. Chem Sci 2022; 13:4436-4473. [PMID: 35656130 PMCID: PMC9020182 DOI: 10.1039/d1sc05452j] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 03/14/2022] [Indexed: 11/21/2022] Open
Abstract
After 40 years of development, inductively coupled plasma-mass spectrometry (ICP-MS) can hardly be considered as a novel technique anymore. ICP-MS has become the reference when it comes to multi-element bulk analysis at (ultra)trace levels, as well as to isotope ratio determination for metal(loid)s. However, over the last decade, this technique has managed to uncover an entirely new application field, providing information in a variety of contexts related to the individual analysis of single entities (e.g., nanoparticles, cells, or micro/nanoplastics), thus addressing new societal challenges. And this profound expansion of its application range becomes even more remarkable when considering that it has been made possible in an a priori simple way: by providing faster data acquisition and developing the corresponding theoretical substrate to relate the time-resolved signals thus obtained with the elemental composition of the target entities. This review presents the underlying concepts behind single event-ICP-MS, which are needed to fully understand its potential, highlighting key areas of application (e.g., single particle-ICP-MS or single cell-ICP-MS) as well as of future development (e.g., micro/nanoplastics).
Collapse
Affiliation(s)
- M Resano
- Department of Analytical Chemistry, Aragón Institute of Engineering Research (I3A), University of Zaragoza Pedro Cerbuna 12 50009 Zaragoza Spain
| | - M Aramendía
- Department of Analytical Chemistry, Aragón Institute of Engineering Research (I3A), University of Zaragoza Pedro Cerbuna 12 50009 Zaragoza Spain
- Centro Universitario de la Defensa de Zaragoza Carretera de Huesca s/n 50090 Zaragoza Spain
| | - E García-Ruiz
- Department of Analytical Chemistry, Aragón Institute of Engineering Research (I3A), University of Zaragoza Pedro Cerbuna 12 50009 Zaragoza Spain
| | - A Bazo
- Department of Analytical Chemistry, Aragón Institute of Engineering Research (I3A), University of Zaragoza Pedro Cerbuna 12 50009 Zaragoza Spain
| | - E Bolea-Fernandez
- Ghent University, Department of Chemistry, Atomic & Mass Spectrometry - A&MS Research Unit Campus Sterre, Krijgslaan 281-S12 9000 Ghent Belgium
| | - F Vanhaecke
- Ghent University, Department of Chemistry, Atomic & Mass Spectrometry - A&MS Research Unit Campus Sterre, Krijgslaan 281-S12 9000 Ghent Belgium
| |
Collapse
|
9
|
Abstract
Metals are essential components in life processes and participate in many important biological processes. Dysregulation of metal homeostasis is correlated with many diseases. Metals are also frequently incorporated into diagnosis and therapeutics. Understanding of metal homeostasis under (patho)physiological conditions and the molecular mechanisms of action of metallodrugs in biological systems has positive impacts on human health. As an emerging interdisciplinary area of research, metalloproteomics involves investigating metal-protein interactions in biological systems at a proteome-wide scale, has received growing attention, and has been implemented into metal-related research. In this review, we summarize the recent advances in metalloproteomics methodologies and applications. We also highlight emerging single-cell metalloproteomics, including time-resolved inductively coupled plasma mass spectrometry, mass cytometry, and secondary ion mass spectrometry. Finally, we discuss future perspectives in metalloproteomics, aiming to attract more original research to develop more advanced methodologies, which could be utilized rapidly by biochemists or biologists to expand our knowledge of how metal functions in biology and medicine. Expected final online publication date for the Annual Review of Biochemistry, Volume 91 is June 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
Collapse
Affiliation(s)
- Ying Zhou
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, China; ,
| | - Hongyan Li
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, China; ,
| | - Hongzhe Sun
- Department of Chemistry and CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, China; ,
| |
Collapse
|
10
|
Liu N, Huang Y, Zhang H, Wang T, Tao C, Zhang A, Chen B, Yin Y, Song M, Qu G, Liang Y, Shi J, He B, Hu L, Jiang G. Unified Probability Distribution and Dynamics of Lead Contents in Human Erythrocytes Revealed by Single-Cell Analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3819-3826. [PMID: 33660988 DOI: 10.1021/acs.est.0c05989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Understanding the presence and dynamics of chemical pollutants in individual cells is fundamentally important for their trafficking, fate, and toxicity in humans. The presence of molecular components (i.e., proteins and mRNA) in individual cells of higher organisms is considered a stochastic event. The characteristics of chemical pollutants, as extrinsic compounds, in subpopulation of human cells on single-cell basis have not been explored yet. Here, we demonstrated the lead (Pb) content in individual mature erythrocytes (m-erythrocytes) of Pb-intoxicated patients, and healthy subjects exhibited a unified pattern in probability distribution (gamma distribution) and dynamics, despite being highly heterogeneous. The Pb content in individual m-erythrocytes decreased with the lifetime of m-erythrocytes. Meanwhile, the distribution and dynamics were found to be highly related to the Pb content in m-erythrocytes and was independent of patients and their status. This is the first study to analyze the distribution pattern of chemical pollutants at a single-cell level in higher organisms. This study sheds light on the molecular mechanism of Pb trafficking and fate in humans and the search for an efficient strategy to improve Pb excretion during Pb treatment.
Collapse
Affiliation(s)
- Nian Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongshun Huang
- Department of Occupational Medicine, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong 510300, China
| | - Huazhou Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ting Wang
- Huizhou City Occupational Disease Prevention and Control Hospital, Huizhou, Guangdong 516008, China
| | - Chen Tao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Aiqian Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baowei Chen
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yongguang Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maoyong Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Liang
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China
| |
Collapse
|
11
|
Abstract
In the last decades, Candida albicans has served as the leading causal agent of life-threatening invasive infections with mortality rates approaching 40% despite treatment. Candida albicans (C. albicans) exists in three biological phases: yeast, pseudohyphae, and hyphae. Hyphae, which represent an important phase in the disease process, can cause tissue damage by invading mucosal epithelial cells then leading to blood infection. In this review, we summarized recent results from different fields of fungal cell biology that are instrumental in understanding hyphal growth. This includes research on the differences among C. albicans phases; the regulatory mechanism of hyphal growth, extension, and maintaining cutting-edge polarity; cross regulations of hyphal development and the virulence factors that cause serious infection. With a better understanding of the mechanism on mycelium formation, this review provides a theoretical basis for the identification of targets in candidiasis treatment. It also gives some reference to the study of antifungal drugs.
Collapse
Affiliation(s)
- Hui Chen
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
12
|
Single cell ICP-MS using on line sample introduction systems: Current developments and remaining challenges. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116042] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
13
|
Hartmann FJ, Bendall SC. Immune monitoring using mass cytometry and related high-dimensional imaging approaches. Nat Rev Rheumatol 2020; 16:87-99. [PMID: 31892734 PMCID: PMC7232872 DOI: 10.1038/s41584-019-0338-z] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2019] [Indexed: 02/07/2023]
Abstract
The cellular complexity and functional diversity of the human immune system necessitate the use of high-dimensional single-cell tools to uncover its role in multifaceted diseases such as rheumatic diseases, as well as other autoimmune and inflammatory disorders. Proteomic technologies that use elemental (heavy metal) reporter ions, such as mass cytometry (also known as CyTOF) and analogous high-dimensional imaging approaches (including multiplexed ion beam imaging (MIBI) and imaging mass cytometry (IMC)), have been developed from their low-dimensional counterparts, flow cytometry and immunohistochemistry, to meet this need. A growing number of studies have been published that use these technologies to identify functional biomarkers and therapeutic targets in rheumatic diseases, but the full potential of their application to rheumatic disease research has yet to be fulfilled. This Review introduces the underlying technologies for high-dimensional immune monitoring and discusses aspects necessary for their successful implementation, including study design principles, analytical tools and future developments for the field of rheumatology.
Collapse
Affiliation(s)
- Felix J Hartmann
- Department of Pathology, School of Medicine, Stanford University, Palo Alto, CA, USA
| | - Sean C Bendall
- Department of Pathology, School of Medicine, Stanford University, Palo Alto, CA, USA.
| |
Collapse
|
14
|
Bassan J, Willis LM, Vellanki RN, Nguyen A, Edgar LJ, Wouters BG, Nitz M. TePhe, a tellurium-containing phenylalanine mimic, allows monitoring of protein synthesis in vivo with mass cytometry. Proc Natl Acad Sci U S A 2019; 116:8155-8160. [PMID: 30971489 PMCID: PMC6486722 DOI: 10.1073/pnas.1821151116] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Protein synthesis is central to maintaining cellular homeostasis and its study is critical to understanding the function and dysfunction of eukaryotic systems. Here we report L-2-tellurienylalanine (TePhe) as a noncanonical amino acid for direct measurement of protein synthesis. TePhe is synthetically accessible, nontoxic, stable under biological conditions, and the tellurium atom allows its direct detection with mass cytometry, without postexperiment labeling. TePhe labeling is competitive with phenylalanine but not other large and aromatic amino acids, demonstrating its molecular specificity as a phenylalanine mimic; labeling is also abrogated in vitro and in vivo by the protein synthesis inhibitor cycloheximide, validating TePhe as a translation reporter. In vivo, imaging mass cytometry with TePhe visualizes translation dynamics in the mouse gut, brain, and tumor. The strong performance of TePhe as a probe for protein synthesis, coupled with the operational simplicity of its use, suggests TePhe could become a broadly applied molecule for measuring translation in vitro and in vivo.
Collapse
Affiliation(s)
- Jay Bassan
- Department of Chemistry, University of Toronto, Toronto, ON, Canada M5S 3H6
| | - Lisa M Willis
- Department of Chemistry, University of Toronto, Toronto, ON, Canada M5S 3H6
| | - Ravi N Vellanki
- The Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada M5T 2M9
| | - Alan Nguyen
- Department of Chemistry, University of Toronto, Toronto, ON, Canada M5S 3H6
| | - Landon J Edgar
- Department of Chemistry, University of Toronto, Toronto, ON, Canada M5S 3H6
| | - Bradly G Wouters
- The Campbell Family Institute for Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada M5T 2M9
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada M5S 3E2
| | - Mark Nitz
- Department of Chemistry, University of Toronto, Toronto, ON, Canada M5S 3H6;
| |
Collapse
|
15
|
Moreira T, Francisco R, Comsa E, Duban-Deweer S, Labas V, Teixeira-Gomes AP, Combes-Soia L, Marques F, Matos A, Favrelle A, Rousseau C, Zinck P, Falson P, Garcia MH, Preto A, Valente A. Polymer "ruthenium-cyclopentadienyl" conjugates - New emerging anti-cancer drugs. Eur J Med Chem 2019; 168:373-384. [PMID: 30826512 DOI: 10.1016/j.ejmech.2019.02.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/21/2019] [Accepted: 02/21/2019] [Indexed: 12/12/2022]
Abstract
In this work, we aimed to understand the biological activity and the mechanism of action of three polymer-'ruthenium-cyclopentadienyl' conjugates (RuPMC) and a low molecular weight parental compound (Ru1) in cancer cells. Several biological assays were performed in ovarian (A2780) and breast (MCF7, MDA-MB-231) human cancer derived cell lines as well as in A2780cis, a cisplatin resistant cancer cell line. Our results show that all compounds have high activity towards cancer cells with low IC50 values in the micromolar range. We observed that all Ru-PMC compounds are mainly found inside the cells, in contrast with the parental low molecular weight compound Ru1 that was mainly found at the membrane. All compounds induced mitochondrial alterations. PMC3 and Ru1 caused F-actin cytoskeleton morphology changes and reduced the clonogenic ability of the cells. The conjugate PMC3 induced apoptosis at low concentrations comparing to cisplatin and could overcame the platinum resistance of A2780cis cancer cells. A proteomic analysis showed that these compounds induce alterations in several cellular proteins which are related to the phenotypic disorders induced by them. Our results suggest that PMC3 is foreseen as a lead candidate to future studies and acting through a different mechanism of action than cisplatin. Here we established the potential of these Ru compounds as new metallodrugs for cancer chemotherapy.
Collapse
Affiliation(s)
- Tiago Moreira
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Portugal. Campus de Gualtar, Braga, 4710-057, Portugal
| | - Rita Francisco
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Portugal. Campus de Gualtar, Braga, 4710-057, Portugal
| | - Elisabeta Comsa
- Drug Resistance & Membrane Proteins Team, Molecular Microbiology and Structural Biochemistry Laboratory, CNRS-UCBL1 UMR 5086, IBCP, 69367, Lyon, France
| | - Sophie Duban-Deweer
- Laboratoire de la barrière hémato-encéphalique (LBHE), Plateau Spectrométrie de Masse de l'ARTois (SMART), Université d'Artois, EA 2465, Lens, F-62300, France
| | - Valérie Labas
- Plate-forme de Chirurgie et d'Imagerie pour la Recherche et l'Enseignement (CIRE), Pôle d'Analyse et d'Imagerie des Biomolécules (PAIB), PR China, INRA, CNRS, Université de Tours, IFCE, 37380, Nouzilly, France
| | - Ana-Paula Teixeira-Gomes
- Plate-forme de Chirurgie et d'Imagerie pour la Recherche et l'Enseignement (CIRE), Pôle d'Analyse et d'Imagerie des Biomolécules (PAIB), PR China, INRA, CNRS, Université de Tours, IFCE, 37380, Nouzilly, France
| | - Lucie Combes-Soia
- Plate-forme de Chirurgie et d'Imagerie pour la Recherche et l'Enseignement (CIRE), Pôle d'Analyse et d'Imagerie des Biomolécules (PAIB), PR China, INRA, CNRS, Université de Tours, IFCE, 37380, Nouzilly, France
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, E.N.10, 2695-066, Bobadela LRS, Portugal
| | - António Matos
- Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz-Cooperativa de Ensino Superior CRL, Campus Universitário, Quinta da Granja, Monte de Caparica, 2829-511, Caparica, Portugal
| | - Audrey Favrelle
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Cyril Rousseau
- Unity of Catalysis and Solid State Chemistry, UMR CNRS 8181, University of Artois, 62000, Lens, France
| | - Philippe Zinck
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Pierre Falson
- Drug Resistance & Membrane Proteins Team, Molecular Microbiology and Structural Biochemistry Laboratory, CNRS-UCBL1 UMR 5086, IBCP, 69367, Lyon, France
| | - M Helena Garcia
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Ana Preto
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Portugal. Campus de Gualtar, Braga, 4710-057, Portugal
| | - Andreia Valente
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal.
| |
Collapse
|
16
|
Mistry AM, Greenplate AR, Ihrie RA, Irish JM. Beyond the message: advantages of snapshot proteomics with single-cell mass cytometry in solid tumors. FEBS J 2019; 286:1523-1539. [PMID: 30549207 DOI: 10.1111/febs.14730] [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: 05/24/2018] [Revised: 10/17/2018] [Accepted: 12/12/2018] [Indexed: 12/19/2022]
Abstract
Single-cell technologies that can quantify features of individual cells within a tumor are critical for treatment strategies aiming to target cancer cells while sparing or activating beneficial cells. Given that key players in protein networks are often the primary targets of precision oncology strategies, it is imperative to transcend the nucleic acid message and read cellular actions in human solid tumors. Here, we review the advantages of multiplex, single-cell mass cytometry in tissue and solid tumor investigations. Mass cytometry can quantitatively probe nearly any cellular feature or target. In discussing the ability of mass cytometry to reveal and characterize a broad spectrum of cell types, identify rare cells, and study functional behavior through protein signaling networks in millions of individual cells from a tumor, this review surveys publications of scientific advances in solid tumor biology made with the aid of mass cytometry. Advances discussed include functional identification of rare tumor and tumor-infiltrating immune cells and dissection of cellular mechanisms of immunotherapy in solid tumors and the periphery. The review concludes by highlighting ways to incorporate single-cell mass cytometry in solid tumor precision oncology efforts and rapidly developing cytometry techniques for quantifying cell location and sequenced nucleic acids.
Collapse
Affiliation(s)
- Akshitkumar M Mistry
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA.,Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Allison R Greenplate
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Rebecca A Ihrie
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA.,Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jonathan M Irish
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA.,Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| |
Collapse
|
17
|
Abstract
The regulated proliferation of cells is a critical factor in tumor progression, antineoplastic therapies, immune system regulation, and the cellular developmental of multicellular organisms. While measurement of cell cycle state by fluorescent flow cytometry is well established, mass cytometry allows the cell cycle to be measured along with large numbers of other antigens enabling characterization of the complex interactions between the cell cycle and wide variety of cellular processes. This method describes the use of mass cytometry for the analysis of cell cycle state for cells from three different sources: in vitro cultured cell lines, ex vivo human blood or bone marrow, and in vivo labeling of murine tissues. The method utilizes incorporation of 5-Iodo-2'-deoxyuridine (IdU), combined with measurement of phosphorylated retinoblastoma protein (pRb), Cyclin B1, and phosphorylated Histone H3 (pHH3). These measurements can be integrated into a gating strategy that enables clear separation of all five phases of the cell cycle.
Collapse
Affiliation(s)
- Gregory K Behbehani
- Division of Hematology, The Ohio State University and James Cancer Hospital, Columbus, OH, USA.
| |
Collapse
|
18
|
Abstract
Mass cytometry is a novel technology similar to flow cytometry in which antibodies are tagged with heavy metal molecules rather than fluorophores and then detected with time-of-flight mass spectrometry. This enables measurement of up to 50 simultaneous parameters with no autofluorescent background and little or no spillover or required compensation. Mass cytometry has tremendous potential for the analysis of highly complex research or clinical samples and can measure 40-50 immunophenotypic markers at a time. This chapter describes most of the commonly used methods for performing basic immunophenotyping experiments by mass cytometry, and how this can be combined with measurement of cellular functional properties.
Collapse
Affiliation(s)
- Gregory K Behbehani
- Department of Internal Medicine, Division of Hematology, James Cancer Hospital, The Ohio State University, Columbus, OH, USA.
| |
Collapse
|
19
|
Olsen LR, Leipold MD, Pedersen CB, Maecker HT. The anatomy of single cell mass cytometry data. Cytometry A 2018; 95:156-172. [DOI: 10.1002/cyto.a.23621] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/28/2018] [Accepted: 09/05/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Lars R. Olsen
- Department of Bio and Health InformaticsTechnical University of Denmark Copenhagen Denmark
- Center for Genomic MedicineCopenhagen University Hospital Copenhagen Denmark
| | - Michael D. Leipold
- Institute for Immunity, Transplantation, and InfectionStanford University School of Medicine Stanford CA
| | - Christina B. Pedersen
- Department of Bio and Health InformaticsTechnical University of Denmark Copenhagen Denmark
- Center for Genomic MedicineCopenhagen University Hospital Copenhagen Denmark
| | - Holden Terry Maecker
- Institute for Immunity, Transplantation, and InfectionStanford University School of Medicine Stanford CA
| |
Collapse
|
20
|
Smith PJ, Darzynkiewicz Z, Errington RJ. Nuclear cytometry and chromatin organization. Cytometry A 2018; 93:771-784. [PMID: 30144297 DOI: 10.1002/cyto.a.23521] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/25/2018] [Accepted: 06/13/2018] [Indexed: 12/18/2022]
Abstract
The nuclear-targeting chemical probe, for the detection and quantification of DNA within cells, has been a mainstay of cytometry-from the colorimetric Feulgen stain to smart fluorescent agents with tuned functionality. The level of nuclear structure and function at which the probe aims to readout, or indeed at which a DNA-targeted drug acts, is shadowed by a wide range of detection modalities and analytical methods. These methods are invariably limited in terms of the resolution attainable versus the volume occupied by targeted chromatin structures. The scalar challenge arises from the need to understand the extent and different levels of compaction of genomic DNA and how such structures can be re-modeled, reported, or even perturbed by both probes and drugs. Nuclear cytometry can report on the complex levels of chromatin order, disorder, disassembly, and even active disruption by probes and drugs. Nuclear probes can report defining features of clinical and therapeutic interest as in NETosis and other cell death processes. New cytometric approaches continue to bridge the scalar challenges of analyzing chromatin organization. Advances in super-resolution microscopy address the resolution and depth of analysis issues in cellular systems. Typical of recent insights into chromatin organization enabled by exploiting a DNA interacting probe is ChromEM tomography (ChromEMT). ChromEMT uses the unique properties of the anthraquinone-based cytometric dye DRAQ5™ to reveal that local and global 3D chromatin structures effect differences in compaction. The focus of this review is nuclear and chromatin cytometry, with linked reference to DNA targeting probes and drugs as exemplified by the anthracenediones.
Collapse
Affiliation(s)
- Paul J Smith
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Zbigniew Darzynkiewicz
- Department of Pathology, Brander Cancer Research Institute, New York Medical College, Valhalla, New York, 10595
| | - Rachel J Errington
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| |
Collapse
|
21
|
Montes-Bayón M, Sharar M, Corte-Rodriguez M. Trends on (elemental and molecular) mass spectrometry based strategies for speciation and metallomics. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.09.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
22
|
Ovarian cancer cells cisplatin sensitization agents selected by mass cytometry target ABCC2 inhibition. Future Med Chem 2018; 10:1349-1360. [PMID: 29848100 DOI: 10.4155/fmc-2017-0308] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
AIM Cisplatin resistance in ovarian cancer remains a complex problem as tumors frequently develop resistance against drugs, a mechanism sometimes mediated by ATP-Binding Cassette transporters. Our goal was to find compounds restricting their inhibition capacity to the cisplatin efflux mediated by ABCC2 pump, among previously identified inhibitors, derived from the 2- indolylmethylenebenzofuranones. Methodology & results: An original method setup allows direct quantitation of platinum by employing cyTOF mass cytometry. Among tested derivatives, some led to a full platinum accumulation and efficiently resensitized cisplatin-resistant A2780 cells to cisplatin while preserving most of the calcein efflux activity. CONCLUSION CyTOF is therefore a powerful and promising method to quantify cisplatin accumulation that may be used in the clinical setting to improve and personalize cancer treatment.
Collapse
|
23
|
Abstract
The regulated progression of cells through the cell cycle during proliferation is a critical factor in tumor progression, anti-neoplastic therapy response, immune system regulation, and developmental biology. While flow cytometric measurement of cell cycle progression is well established, mass cytometry assays allow the cell cycle to be measured along with up to 39 other antigens enabling characterization of the complex interactions between the cell cycle and a wide variety of cellular processes. This method describes the use of mass cytometry for the analysis of cell cycle state for cells from three different sources: in vitro cultured cell lines, ex vivo human blood or bone marrow, and in vivo labeling and ex vivo analysis of murine tissues. The method utilizes incorporation of 5-Iodo-2'-deoxyuridine (IdU), combined with measurement of phosphorylated retinoblastoma protein (pRb), cyclin B1, and phosphorylated histone H3 (p-HH3). These measurements can be integrated into a gating strategy that allows for clear separation of all five phases of the cell cycle.
Collapse
Affiliation(s)
- Gregory K Behbehani
- Division of Hematology, Ohio State University and James Cancer Hospital, Starling Loving Hall, 320 W. 10th Avenue, Columbus, OH, 43210, USA.
| |
Collapse
|
24
|
Corte Rodríguez M, Álvarez-Fernández García R, Blanco E, Bettmer J, Montes-Bayón M. Quantitative Evaluation of Cisplatin Uptake in Sensitive and Resistant Individual Cells by Single-Cell ICP-MS (SC-ICP-MS). Anal Chem 2017; 89:11491-11497. [PMID: 29023104 DOI: 10.1021/acs.analchem.7b02746] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
One of the main limitations to the Pt-therapy in cancer is the development of associated drug resistance that can be associated with a significant reduction of the intracellular platinum concentration. Thus, intracellular Pt concentration could be considered as a biomarker of cisplatin resistance. In this work, an alternative method to address intracellular Pt concentration in individual cells is explored to permit the evaluation of different cell models and alternative therapies in a relatively fast way. For this aim, total Pt analysis in single cells has been implemented using a total consumption nebulizer coupled to inductively coupled plasma mass spectrometric detection (ICP-MS). The efficiency of the proposed device has been evaluated in combination with flow cytometry and turned out to be around 25% (cells entering the ICP-MS from the cells in suspension). Quantitative uptake studies of a nontoxic Tb-containing compound by individual cells were conducted and the results compared to those obtained by bulk analysis of the same cells. Both sets of data were statistically comparable. Thus, final application of the developed methodology to the comparative uptake of Pt-species in cisplatin resistant and sensitive cell lines (A2780cis and A2780) was conducted. The results obtained revealed the potential of this analytical strategy to differentiate between different cell lines of different sensitivity to the drug which might be of high medical interest.
Collapse
Affiliation(s)
- M Corte Rodríguez
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo , C/Julián Clavería 8, 33006 Oviedo, Spain
| | - R Álvarez-Fernández García
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo , C/Julián Clavería 8, 33006 Oviedo, Spain
| | - E Blanco
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo , C/Julián Clavería 8, 33006 Oviedo, Spain
| | - J Bettmer
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo , C/Julián Clavería 8, 33006 Oviedo, Spain
| | - M Montes-Bayón
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo , C/Julián Clavería 8, 33006 Oviedo, Spain
| |
Collapse
|
25
|
Dong Y, Wang Z, Xie GF, Li C, Zuo WW, Meng G, Xu CP, Li JJ. Pregnane X receptor is associated with unfavorable survival and induces chemotherapeutic resistance by transcriptional activating multidrug resistance-related protein 3 in colorectal cancer. Mol Cancer 2017; 16:71. [PMID: 28356150 PMCID: PMC5372326 DOI: 10.1186/s12943-017-0641-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 03/20/2017] [Indexed: 12/20/2022] Open
Abstract
Background Although chemotherapy represents a predominant anti-cancer therapeutic modality, drug treatment efficacy is often limited due to the development of resistant tumor cells. The pregnane X receptor (PXR) affects chemotherapeutic effects by regulating targets involved in drug metabolism and transportation, but the regulatory mechanism is poorly understood. Methods Oxaliplatin (L-OHP) content in tumor cells was analyzed by mass cytometry. The roles of PXR on cancer cell proliferation, apoptosis and tumor growth with L-OHP-treated were investigated by MTS, colony formation, flow cytometry and xenograft tumor assays. Luciferase reporter, Chromatin-immunoprecipitation and Site-directed mutagenesis were evaluated the mechanisms. The PXR and multidrug resistance-related protein 3 (MRP3) expressions were examined by western blot, RT-PCR or immunohistochemistry of TMA. Kaplan-Meier and Cox regression were adopted to analyze the prognostic value of PXR in colorectal cancer (CRC). Results PXR over-expression significantly increased oxaliplatin (L-OHP) transport capacity with a reduction of its content and repressed the effects of L-OHP on tumour cell proliferation and apoptosis. Conversely, PXR knockdown augments L-OHP-mediated cellular proliferation and apoptosis. Moreover, PXR significantly reduced the therapeutic effects of L-OHP on tumor growth in nude mice. Further studies indicated a positive correlation between PXR and MRP3 expression and this finding was confirmed in two independent cohorts. Significantly increased MRP3 expression was also found in PXR over-expressing cell lines. Mechanistically, PXR could directly bind to the MRP3 promoter, activating its transcription. The PXR binding sites were determined to be at -796 to -782bp (CTGAAGCAGAGGGAA) and the key binding sites were the “AGGGA” (-787 to -783bp) on the MRP3 promoter. Accordingly, blockade of MRP3 diminishes the effects on drug resistance of PXR. In addition, PXR expression is significantly associated with poor overall survival and represents an unfavorable and independent factor for male or stage I + II CRC patient prognosis. Conclusions PXR is a potential biomarker for predicting outcome and activates MRP3 transcription by directly binding to its promoter resulting in an increased L-OHP efflux capacity, and resistance to L-OHP or platinum drugs in CRC. Our work reveals a novel and unique mechanism of drug resistance in CRC. Electronic supplementary material The online version of this article (doi:10.1186/s12943-017-0641-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yan Dong
- Department of Oncology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Zhe Wang
- Department of Oncology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Gan-Feng Xie
- Department of Oncology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Chong Li
- Department of Oncology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Wen-Wei Zuo
- Department of Oncology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Gang Meng
- Department of Pathology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Cheng-Ping Xu
- Department of Pathology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China
| | - Jian-Jun Li
- Department of Oncology, Southwest Hospital, Third Military Medical University, No. 29, Gaotanyan Street, Shapingba District, Chongqing, 400038, People's Republic of China.
| |
Collapse
|
26
|
Wang H, Wang M, Wang B, Zheng L, Chen H, Chai Z, Feng W. Interrogating the variation of element masses and distribution patterns in single cells using ICP-MS with a high efficiency cell introduction system. Anal Bioanal Chem 2016; 409:1415-1423. [DOI: 10.1007/s00216-016-0075-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/22/2016] [Accepted: 10/31/2016] [Indexed: 02/07/2023]
|
27
|
Chang Q, Ornatsky OI, Siddiqui I, Straus R, Baranov VI, Hedley DW. Biodistribution of cisplatin revealed by imaging mass cytometry identifies extensive collagen binding in tumor and normal tissues. Sci Rep 2016; 6:36641. [PMID: 27812005 PMCID: PMC5095658 DOI: 10.1038/srep36641] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 10/17/2016] [Indexed: 12/30/2022] Open
Abstract
Imaging mass cytometry was used for direct visualization of platinum localization in tissue sections from tumor and normal tissues of cisplatin-treated mice bearing pancreas cancer patient-derived xenografts. This recently-developed technology enabled simultaneous detection of multiple markers to define cell lineage, DNA damage response, cell proliferation and functional state, providing a highly detailed view of drug incorporation in tumor and normal tissues at the cellular level. A striking and unanticipated finding was the extensive binding of platinum to collagen fibers in both tumor and normal mouse tissues. Time course experiments indicated the slow release of stroma-bound platinum, although it is currently unclear if released platinum retains biological activity. Imaging mass cytometry offers a unique window into the in vivo effects of platinum compounds, and it is likely that this can be extended into the clinic in order to optimize the use of this important class of agent.
Collapse
Affiliation(s)
- Qing Chang
- Fluidigm Canada Inc., 1380 Rodick Road, Markham, Ontario L3R 4G5, Canada
| | - Olga I Ornatsky
- Fluidigm Canada Inc., 1380 Rodick Road, Markham, Ontario L3R 4G5, Canada
| | - Iram Siddiqui
- Department of Pathology, Hospital for Sick Children, 555 University Avenue, Ontario M5G 1X8, Canada
| | - Rita Straus
- Fluidigm Canada Inc., 1380 Rodick Road, Markham, Ontario L3R 4G5, Canada
| | - Vladimir I Baranov
- Fluidigm Canada Inc., 1380 Rodick Road, Markham, Ontario L3R 4G5, Canada
| | - David W Hedley
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 610 University Avenue, Toronto, Ontario M5G 2M9, Canada
| |
Collapse
|
28
|
Raju R, Chau D, Cho DS, Park Y, Verfaillie CM, Hu WS. Cell Expansion During Directed Differentiation of Stem Cells Toward the Hepatic Lineage. Stem Cells Dev 2016; 26:274-284. [PMID: 27806669 DOI: 10.1089/scd.2016.0119] [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] [Indexed: 12/15/2022] Open
Abstract
The differentiation of human pluripotent stem cells toward the hepatocyte lineage can potentially provide an unlimited source of functional hepatocytes for transplantation and extracorporeal bioartificial liver applications. It is anticipated that the quantities of cells needed for these applications will be in the order of 109-1010 cells, because of the size of the liver. An ideal differentiation protocol would be to enable directed differentiation to the hepatocyte lineage with simultaneous cell expansion. We introduced a cell expansion stage after the commitment of human embryonic stem cells to the endodermal lineage, to allow for at least an eightfold increase in cell number, with continuation of cell maturation toward the hepatocyte lineage. The progressive changes in the transcriptome were measured by expression array, and the expression dynamics of certain lineage markers was measured by mass cytometry during the differentiation and expansion process. The findings revealed that while cells were expanding they were also capable of progressing in their differentiation toward the hepatocyte lineage. In addition, our transcriptome, protein and functional studies, including albumin secretion, drug-induced CYP450 expression and urea production, all indicated that the hepatocyte-like cells obtained with or without cell expansion are very similar. This method of simultaneous cell expansion and hepatocyte differentiation should facilitate obtaining large quantities of cells for liver cell applications.
Collapse
Affiliation(s)
- Ravali Raju
- 1 Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota.,2 Stem Cell Institute, University of Minnesota , Minneapolis, Minnesota
| | - David Chau
- 1 Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota.,2 Stem Cell Institute, University of Minnesota , Minneapolis, Minnesota.,3 Department of Biomedical Engineering, University of Minnesota , Minneapolis, Minnesota
| | - Dong Seong Cho
- 1 Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota.,2 Stem Cell Institute, University of Minnesota , Minneapolis, Minnesota
| | - Yonsil Park
- 1 Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota.,2 Stem Cell Institute, University of Minnesota , Minneapolis, Minnesota
| | - Catherine M Verfaillie
- 4 Department of Development and Regeneration, Stem Cell Institute Leuven , KU Leuven, Leuven, Belgium
| | - Wei-Shou Hu
- 1 Department of Chemical Engineering and Materials Science, University of Minnesota , Minneapolis, Minnesota.,2 Stem Cell Institute, University of Minnesota , Minneapolis, Minnesota
| |
Collapse
|
29
|
Cantor DI, Nice EC, Baker MS. Recent findings from the human proteome project: opening the mass spectrometry toolbox to advance cancer diagnosis, surveillance and treatment. Expert Rev Proteomics 2015; 12:279-93. [DOI: 10.1586/14789450.2015.1040770] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
30
|
Baiceanu E, Crisan G, Loghin F, Falson P. Modulators of the human ABCC2: hope from natural sources? Future Med Chem 2015; 7:2041-63. [PMID: 26496229 DOI: 10.4155/fmc.15.131] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Human ABCC2 is an ATP-binding cassette transporter involved in the export of endobiotics and xenobiotics. It is involved in cisplatin resistance in cancer cells, particularly in ovarian cancer. The few known ABCC2 modulators are poorly efficient, so it is necessary to explore new ways to select and optimize efficient compounds ABCC2. Natural products offer an original scaffold for such a strategy and brings hope for this aim. This review covers basic knowledge about ABCC2, from distribution and topology aspects to physiological and pathological functions. It summarizes the effect of natural products as ABCC2 modulators. Certain plant metabolites act on different ABCC2 regulation levels and therefore are promising candidates to block the multidrug resistance mediated by ABCC2 in cancer cells.
Collapse
Affiliation(s)
- Elisabeta Baiceanu
- Drug Resistance Modulation & Membrane Proteins Laboratory, Molecular & Structural Basis of Infectious Systems, Mixed Research Unit between the National Centre for Scientific Research & Lyon I University n 5086, Institute of Biology & Chemistry of Proteins, 7 passage du Vercors 69367, Lyon, Cedex, France
- Pharmaceutical Botany Department, Faculty of Pharmacy, University of Medicine & Pharmacy 'Iuliu Haţieganu' Cluj-Napoca, 23 Marinescu Street, Cluj-Napoca, Romania
| | - Gianina Crisan
- Pharmaceutical Botany Department, Faculty of Pharmacy, University of Medicine & Pharmacy 'Iuliu Haţieganu' Cluj-Napoca, 23 Marinescu Street, Cluj-Napoca, Romania
| | - Felicia Loghin
- Toxicology Department, Faculty of Pharmacy, University of Medicine & Pharmacy 'Iuliu Haţieganu' Cluj-Napoca, 5-9 Louis Pasteur Street, Cluj-Napoca, Romania
| | - Pierre Falson
- Drug Resistance Modulation & Membrane Proteins Laboratory, Molecular & Structural Basis of Infectious Systems, Mixed Research Unit between the National Centre for Scientific Research & Lyon I University n 5086, Institute of Biology & Chemistry of Proteins, 7 passage du Vercors 69367, Lyon, Cedex, France
| |
Collapse
|