TY - JOUR
T1 - IL-33 upregulates cysteinyl leukotriene receptor type 1 expression in human peripheral blood CD4+ T lymphocytes
AU - Boudaud, Marie
AU - Turcotte, Sylvie
AU - Stankova, Jana
AU - Rola-Pleszczynski, Marek
N1 - Publisher Copyright:
© 2018 by The American Association of Immunologists, Inc.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - IL-33 and cysteinyl leukotrienes (cysLTs) are key components of asthma pathogenesis, and both contribute to the initiation and maintenance of the type 2 inflammatory environment. However, little is known about the potential interactions between the two mediators. In this work, we aimed at studying the regulation of expression of the cysLT receptors CysLT1 and CysLT2 by IL-33 in human PBLs. Our results show that the IL-33/ST2L axis increases CysLT1 but not CysLT2 expression in a concentration-and timedependent manner in PBLs. IL-33-induced CysLT1 upregulation was observed at the protein but not at the mRNA level and was accompanied by an increase in LTD4-induced calcium mobilization and migration of CD4+ T lymphocytes. We also show that purified naive CD4+ T lymphocytes expressed ST2L and responded to IL-33 in the absence of Ag or TCR stimulation, suggesting a mechanism independent of Ag presentation. These results contribute to expanding our knowledge in the field of IL-33 by proposing a new mode of action of the cytokine on T cells and by extending its role to the regulation of naive T cell trafficking, therefore reinforcing its interest as a potential therapeutic target for the treatment of asthma.
AB - IL-33 and cysteinyl leukotrienes (cysLTs) are key components of asthma pathogenesis, and both contribute to the initiation and maintenance of the type 2 inflammatory environment. However, little is known about the potential interactions between the two mediators. In this work, we aimed at studying the regulation of expression of the cysLT receptors CysLT1 and CysLT2 by IL-33 in human PBLs. Our results show that the IL-33/ST2L axis increases CysLT1 but not CysLT2 expression in a concentration-and timedependent manner in PBLs. IL-33-induced CysLT1 upregulation was observed at the protein but not at the mRNA level and was accompanied by an increase in LTD4-induced calcium mobilization and migration of CD4+ T lymphocytes. We also show that purified naive CD4+ T lymphocytes expressed ST2L and responded to IL-33 in the absence of Ag or TCR stimulation, suggesting a mechanism independent of Ag presentation. These results contribute to expanding our knowledge in the field of IL-33 by proposing a new mode of action of the cytokine on T cells and by extending its role to the regulation of naive T cell trafficking, therefore reinforcing its interest as a potential therapeutic target for the treatment of asthma.
UR - http://www.scopus.com/inward/record.url?scp=85055175448&partnerID=8YFLogxK
U2 - 10.4049/jimmunol.1701463
DO - 10.4049/jimmunol.1701463
M3 - Article
C2 - 30242072
AN - SCOPUS:85055175448
SN - 0022-1767
VL - 201
SP - 2776
EP - 2786
JO - Journal of Immunology
JF - Journal of Immunology
IS - 9
ER -