| Autor: |
Alexander Elias Paul Stratmann, Lisa Wohlgemuth, Maike Elisabeth Erber, Stefan Bernhard, Stefan Hug, Michael Fauler, Laura Vidoni, Adam Omar Khalaf Mohamed, Bertram Dietrich Thomaß, Frederik Münnich, Laura Stukan, Karl Josef Föhr, Marco Mannes, Markus Stefan Huber-Lang, David Alexander Christian Messerer |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Biomedicines, Vol 9, Iss 11, p 1504 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2227-9059 |
| DOI: |
10.3390/biomedicines9111504 |
| Popis: |
Neutrophils provide rapid and efficient defense mechanisms against invading pathogens. Upon stimulation with proinflammatory mediators, including complement factors and bacterial peptides, neutrophils respond with changes in their membrane potential, intracellular pH, and cellular size. This study provides an approach to quantify these important changes simultaneously using multiparametric flow cytometry, thereby revealing a typical sequence of neutrophil activation consisting of depolarization, alkalization, and increase in cellular size. Additionally, the time resolution of the flow cytometric measurement is improved in order to allow changes that occur within seconds to be monitored, and thus to enhance the kinetic analysis of the neutrophil response. The method is appropriate for the reliable semiquantitative detection of small variations with respect to an increase, no change, and decrease in those parameters as demonstrated by the screening of various proinflammatory mediators. As a translational outlook, the findings are put into context in inflammatory conditions in vitro as well as in a clinically relevant whole blood model of endotoxemia. Taken together, the multiparametric analysis of neutrophil responsiveness regarding depolarization, alkalization, and changes in cellular size may contribute to a better understanding of neutrophils in health and disease, thus potentially yielding innovative mechanistic insights and possible novel diagnostic and/or prognostic approaches. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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