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Bordanaba-Florit G, Royo F, Kruglik SG, Falcón-Pérez JM. Using single-vesicle technologies to unravel the heterogeneity of extracellular vesicles. Nat Protoc 2021; 16:3163-3185. [PMID: 34135505 DOI: 10.1038/s41596-021-00551-z] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 03/31/2021] [Indexed: 12/12/2022]
Abstract
Extracellular vesicles (EVs) are heterogeneous lipid containers with a complex molecular cargo comprising several populations with unique roles in biological processes. These vesicles are closely associated with specific physiological features, which makes them invaluable in the detection and monitoring of various diseases. EVs play a key role in pathophysiological processes by actively triggering genetic or metabolic responses. However, the heterogeneity of their structure and composition hinders their application in medical diagnosis and therapies. This diversity makes it difficult to establish their exact physiological roles, and the functions and composition of different EV (sub)populations. Ensemble averaging approaches currently employed for EV characterization, such as western blotting or 'omics' technologies, tend to obscure rather than reveal these heterogeneities. Recent developments in single-vesicle analysis have made it possible to overcome these limitations and have facilitated the development of practical clinical applications. In this review, we discuss the benefits and challenges inherent to the current methods for the analysis of single vesicles and review the contribution of these approaches to the understanding of EV biology. We describe the contributions of these recent technological advances to the characterization and phenotyping of EVs, examination of the role of EVs in cell-to-cell communication pathways and the identification and validation of EVs as disease biomarkers. Finally, we discuss the potential of innovative single-vesicle imaging and analysis methodologies using microfluidic devices, which promise to deliver rapid and effective basic and practical applications for minimally invasive prognosis systems.
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Affiliation(s)
- Guillermo Bordanaba-Florit
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Spain.
| | - Félix Royo
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Madrid, Spain
| | - Sergei G Kruglik
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Laboratoire Jean Perrin, Paris, France
| | - Juan M Falcón-Pérez
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Madrid, Spain. .,Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
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Ye D, Wang W, Moline D, Islam MS, Chen F, Wang P. A Microwave Flow Detector for Gradient Elution Liquid Chromatography. Anal Chem 2017; 89:10761-10768. [PMID: 28936868 DOI: 10.1021/acs.analchem.7b01924] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study presents a microwave flow detector technique for liquid chromatography (LC) application. The detector is based on a tunable microwave interferometer (MIM) with a vector network analyzer (VNA) for signal measurement and a computer for system control. A microstrip-line-based 0.3 μL flow cell is built and incorporated into the MIM. With syringe pump injection, the detector is evaluated by measuring a few common chemicals in DI water at multiple frequencies from 0.98 to 7.09 GHz. Less than 30 ng minimum detectable quantity (MDQ) is demonstrated. An algorithm is provided and used to obtain sample dielectric permittivity at each frequency point. When connected to a commercial HPLC system and injected with a 10 μL aliquot of 10 000 ppm caffeine DI-water solution, the microwave detector yields a signal-to-noise ratio (SNR) up to 10 under isocratic and gradient elution operations. The maximum sampling rate is 20 Hz. The measurements show that MIM tuning, aided by a digital tunable attenuator (DTA), can automatically adjust MIM operation to retain detector sensitivity when mobile phase changes. Furthermore, the detector demonstrates a capability to quantify coeluted vitamin E succinate (VES) and vitamin D3 (VD3).
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Affiliation(s)
- Duye Ye
- Department of Electrical and Computer Engineering, ‡Department of Food, Nutrition, and Packaging Sciences, Clemson University , Clemson, South Carolina 29634, United States
| | - Weizheng Wang
- Department of Electrical and Computer Engineering, ‡Department of Food, Nutrition, and Packaging Sciences, Clemson University , Clemson, South Carolina 29634, United States
| | - David Moline
- Department of Electrical and Computer Engineering, ‡Department of Food, Nutrition, and Packaging Sciences, Clemson University , Clemson, South Carolina 29634, United States
| | - Md Saiful Islam
- Department of Electrical and Computer Engineering, ‡Department of Food, Nutrition, and Packaging Sciences, Clemson University , Clemson, South Carolina 29634, United States
| | - Feng Chen
- Department of Electrical and Computer Engineering, ‡Department of Food, Nutrition, and Packaging Sciences, Clemson University , Clemson, South Carolina 29634, United States
| | - Pingshan Wang
- Department of Electrical and Computer Engineering, ‡Department of Food, Nutrition, and Packaging Sciences, Clemson University , Clemson, South Carolina 29634, United States
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