Role of agonistic autoantibodies to the angiotensin II type 1 receptor (AT1-AA) in pathogenesis of preeclampsia.

Abstract

Preeclampsia(PE) is the most prevalent complication during pregnancy and constitutes a significant cause of morbidity and mortality among pregnant women and their fetuses. Recent studies have demonstrated elevated levels of angiotensin II type 1 receptor autoantibodies (AT1-AA) in patients diagnosed with PE. These autoantibodies can mimic the physiological effects of angiotensin II by engaging with the AT1 receptor, thereby instigating inflammatory responses and vasoconstriction, which contribute to the clinical manifestations of PE. Although the precise pathogenesis of PE remains unclear, it is influenced by a multitude of factors. This paper aims to provide a comprehensive overview of the relationship between PE and AT1-AA, along with an analysis of the pathophysiological effects and signaling pathways related to these autoantibodies.