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Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
Published on: August 7, 2017
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Multiparameter Single Cell Profiling of Airway Inflammatory Cells
Yi Yao1, Tobias Welp2, Qing Liu1
1Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut.
Cytometry. Part B, Clinical Cytometry
|November 4, 2016
Summary
Mass cytometry (CyTOF) analyzes immune cells in airway diseases like asthma. This single-cell technology reveals cellular heterogeneity, aiding in defining patient subgroups and improving treatment strategies for complex respiratory conditions.
Area of Science:
- * Immunology
- * Respiratory Medicine
- * Medical Technology
Background:
- * Airway diseases, including asthma, exhibit significant clinical and biological heterogeneity.
- * Understanding distinct immune mechanisms in asthmatic patients is crucial for effective treatment.
- * Limited cell numbers from the lung hinder in-depth investigation of airway immunity.
Purpose of the Study:
- * To demonstrate the application of Mass Cytometry (CyTOF) for analyzing primary airway samples.
- * To quantify cellular frequency and functional status in airway immune cells.
- * To establish a method for defining immune heterogeneity in respiratory diseases.
Main Methods:
- * Utilized Mass Cytometry (Cytometry by Time-Of-Flight or CyTOF) for multiparameter single-cell analysis.
- * Analyzed primary airway samples from well-characterized patients with asthma and cystic fibrosis.
- * Quantified cellular frequency and functional status of defined immune cell subsets.
Main Results:
- * CyTOF enabled unprecedented multidimensional cellular analysis with up to ~40 markers.
- * Demonstrated the ability to quantify cellular frequency and functional status of airway immune cells.
- * Provided a detailed analysis of sputum-derived immune cell subsets.
Conclusions:
- * CyTOF is a powerful single-cell technology for characterizing airway immune status.
- * The study provides a blueprint for defining subject heterogeneity in airway diseases.
- * This method facilitates a deeper understanding of the immunologic underpinnings of asthma and cystic fibrosis.

