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Published on: August 4, 2021
Maternal serum interleukin-33 and soluble ST2 across early pregnancy, and their association with miscarriage
Tu'uhevaha J Kaitu'u-Lino1, Laura Tuohey, Stephen Tong
1Translational Obstetrics Group, Mercy Hospital for Women, University of Melbourne, Heidelberg, Victoria, Australia. t.klino@unimelb.edu.au
A shift from type 1 to type 2 immune bias is essential for successful implantation and pregnancy. ST2 is a receptor present on type 2 immune cells and IL-33 was recently discovered to be its ligand. We measured serum levels of soluble ST2 (sST2) and IL-33 across the mid-first trimester and examined whether levels were dysregulated among women with a viable fetus but destined to miscarry. While there was no significant change in sST2 or IL-3 across the first trimester, we found that women with live pregnancies destined to fail had dysregulated levels of serum IL-33, and potentially sST2 at six weeks' gestation.
A shift from type 1 to type 2 immune bias is essential for successful implantation and pregnancy. ST2 is a receptor present on type 2 immune cells and IL-33 was recently discovered to be its ligand. We measured serum levels of soluble ST2 (sST2) and IL-33 across the mid-first trimester and examined whether levels were dysregulated among women with a viable fetus but destined to miscarry. While there was no significant change in sST2 or IL-3 across the first trimester, we found that women with live pregnancies destined to fail had dysregulated levels of serum IL-33, and potentially sST2 at six weeks' gestation.
