Elevated Circulating and Placental SPINT2 Is Associated with Placental Dysfunction
Ciara N Murphy, Susan P Walker, Teresa M MacDonald, Emerson Keenan, Natalie J Hannan, Mary E Wlodek, Jenny Myers, Jessica F Briffa, Tania Romano, Alexandra Roddy Mitchell, Carole-Anne Whigham, Ping Cannon, Tuong-Vi Nguyen, Manju Kandel, Natasha Pritchard, Stephen Tong, Tu'uhevaha J Kaitu'u-Lino
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | MDPI | Published : 2021
Biomarkers for placental dysfunction are currently lacking. We recently identified SPINT1 as a novel biomarker; SPINT2 is a functionally related placental protease inhibitor. This study aimed to characterise SPINT2 expression in placental insufficiency. Circulating SPINT2 was assessed in three prospective cohorts, collected at the following: (1) term delivery (n = 227), (2) 36 weeks (n = 364), and (3) 24-34 weeks' (n = 294) gestation. SPINT2 was also measured in the plasma and placentas of women with established placental disease at preterm (<34 weeks) delivery. Using first-trimester human trophoblast stem cells, SPINT2 expression was assessed in hypoxia/normoxia (1% vs. 8% O2), and followin..View full abstract
Awarded by National Health and Medical Research Council
Awarded by National Health and Medical Research Council Fellowships
Funding for this work was provided by the National Health and Medical Research Council (#1065854, #1183854, #116071, #2000732), National Health and Medical Research Council Fellowships to TKL (#1159261), NJH (#1146128), ST (#1136418). The funders played no role in study design or analysis.