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Data on the modulatory effects of a single bolus dexamethasone on the surface marker expression of various leucocyte
D F Draxler1,2,3, C R Bain4, R Taylor5
1Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia.
Insights
A single dose of dexamethasone, used to prevent nausea in surgery patients, alters immune cell function. This study details changes in immune cell markers following dexamethasone administration in healthy volunteers.
Area of Science:
- Immunology
- Pharmacology
- Cell Biology
Background:
- Dexamethasone is commonly used for anti-emetic prophylaxis in surgical patients.
- Understanding its immunomodulatory effects is crucial for optimizing treatment and exploring new applications.
Purpose of the Study:
- To investigate the in vivo immunomodulatory effects of a single dexamethasone dose on peripheral blood mononuclear cells (PBMCs).
- To analyze changes in immune cell phenotypes, including activation, suppression, maturation, migration, cell death, and signaling responsiveness.
Main Methods:
- A single bolus of dexamethasone was administered to 10 healthy male volunteers.
- Blood samples were collected at baseline, 2, 4, and 24 hours post-administration.
- Immune cell phenotypes were analyzed using flow cytometry, focusing on monocytes, cDC subsets, NK cells, CD4+, CD8+ T cells, and regulatory T cells (Treg).
Main Results:
- The study presents data on the expression of immune markers related to activation, immunosuppression, maturation, migration, cell death, and signaling.
- Specific changes in marker expression were observed on various immune cell subsets, including monocytes, cDC subsets, NK cells, CD4+ T cells, CD8+ T cells, and Treg cells.
Conclusions:
- The findings provide detailed insights into the in vivo immunomodulatory effects of dexamethasone on circulating immune cells.
- These data contribute to a better understanding of glucocorticoid actions, aiding in treatment optimization and the identification of new therapeutic indications.
Abstract:
Dexamethasone is frequently administered to surgical patients for anti-emetic prophylaxis. We have examined the immunomodulatory effects of a single bolus of dexamethasone on circulating peripheral blood mononuclear cells (PBMCs) in the same 10 healthy male volunteers, previously used in our investigation on early in vivo effects of a single anti-emetic dose of dexamethasone on innate immune cell gene expression and activation [1]. Blood samples were drawn at baseline, 2 h, 4 h and 24 h. Immune cell phenotypes were examined with flow cytometry. In this data article the expression strength of markers involved in immune activation and immunosuppression as well as maturation, migration, cell death and responsiveness to signalling on monocyte and cDC subsets, as well as NK cells, CD4+ and CD8+ T cells and regulatory T cells (Treg) are presented. These data improve our understanding of the immunomodulatory effects of the glucocorticoid dexamethasone in-vivo, which may be important for the optimisation of treatment regimens as well as the evaluation of new indications for glucocorticoid treatment.
