Related Experiment Video
Updated: Aug 29, 2026

Immunostimulatory Agent Evaluation: Lymphoid Tissue Extraction and Injection Route-Dependent Dendritic Cell Activation
Published on: September 16, 2018
Effects of adrenaline and cortisone on the early activation of lymphocytes
Tamiyasu Shimamiya1, Sonoe Wakabayashi, Nobuyuki Terada
1Center for Life Science Research, University of Yamanashi.
Abstract:
Using whole blood, we examined the effects of stress hormones on CD69 expression in Natural Killer (NK) cells. A series of diluted adrenaline or cortisone was added to 1 ml of whole blood. Propranolol was used to block the beta-adrenergic effect. The blood samples were activated with CD2/CD2R mitogenic antibody solution for four hours under 37 degrees C. Then CD69 antigen on NK cells was analyzed by flowcytometric assay. Adrenaline and cortisone doses dependently suppressed CD69 expression on NK cells. Propranolol blocked the suppressive effect of adrenaline. CD69 expression was significantly higher than the control when only propranolol was added. We concluded that blood constituents acting on mitogenic reaction and stress hormones affect the early stage on the way to proliferation and differentiation.
Related Concept Videos
B Cell Activation and Differentiation
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Cells of the Adaptive Immune Response
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
Special Features of Adaptive Immunity
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Cell-mediated Immune Responses

