1
|
Carvajal Gonczi CM, Hajiaghayi M, Gholizadeh F, Xavier Soares MA, Touma F, Lopez Naranjo C, Rios AJ, Pozzebon C, Daigneault T, Burchell-Reyes K, Darlington PJ. The β2-adrenergic receptor agonist terbutaline upregulates T helper-17 cells in a protein kinase A-dependent manner. Hum Immunol 2023; 84:515-524. [PMID: 37438188 DOI: 10.1016/j.humimm.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 06/30/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUND T helper 17 (Th17) cells produce IL-17A cytokine and can exacerbate autoimmune diseases and asthma. The β2 adrenergic receptor is a g protein-coupled receptor that induces cAMP second messenger pathways. We tested the hypothesis that terbutaline, a β2-adrenergic receptor-specific agonist, promotes IL-17 secretion by memory Th17 cells in a cAMP and PKA-dependent manner. METHODS Venous peripheral blood mononuclear cells (PBMC) from healthy human participants were activated with anti-CD3 and anti-CD28 antibodies. Secreted IL-17A was measured by enzyme linked immunosorbent assay, intracellular IL-17A, and RORγ were measured using flow cytometry, and RORC by qPCR. Memory CD3+CD4+CD45RA-CD45RO+ T cells were obtained by immunomagnetic negative selection and activated with tri-antibody complex CD3/CD28/CD2. Secreted IL-17A, intracellular IL-17A, RORC were measured, and phosphorylated-serine133-CREB was measured by western blotting memory Th cells. RESULTS Terbutaline increased IL-17A (p < 0.001), IL-17A+ cells (p < 0.05), and RORC in activated PBMC and memory Th cells. The PKA inhibitors H89 (p < 0.001) and Rp-cAMP (p < 0.01) abrogated the effects of terbutaline on IL-17A secretion in PBMC and memory T cells. Rolipram increased IL-17A (p < 0.01) to a similar extent as terbutaline. P-Ser133-CREB was increased by terbutaline (p < 0.05) in memory T cells. CONCLUSION Terbutaline augments memory Th17 cells in lymphocytes from healthy participants. This could exacerbate autoimmune diseases or asthma, in cases where Th17 cells are considered to be pro-inflammatory.
Collapse
Affiliation(s)
| | - Mehri Hajiaghayi
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Fatemeh Gholizadeh
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | | | - Fadi Touma
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | | | - Amanda J Rios
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Chelsea Pozzebon
- Department of Psychology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Tina Daigneault
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Kelly Burchell-Reyes
- Department of Chemistry and Biochemistry, PERFORM Centre, Concordia University, Montreal, Quebec, Canada
| | - Peter J Darlington
- Department of Biology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada; Department of Psychology, PERFORM Centre, Concordia University, Montreal, Quebec, Canada; Department of Health, Kinesiology & Applied Physiology, PERFORM Centre, Montreal, Quebec, Canada.
| |
Collapse
|