Frontiers in public healthJul 29, 2026

Early aging of the placenta and its role in the mother's symptoms in early severe preeclampsia

Longevity & Aging Weekly Brief ↗PubMed ↗DOI ↗OA ↗

Updated Aug 3, 2026

Abstract

Elevated senescence markers and the secretion of specific proteins are observed in early-onset preeclampsia, with PAI-1 increasing approximately 4-fold.

Premature placental aging, linked to stress in the placenta, may connect placental injury to maternal health issues.
Defective remodeling of spiral arteries and repeated blood flow interruptions can lead to oxidative damage and halted cell growth in placental cells.
Markers indicating cell aging, such as p16INK4a and p21, are elevated in early-onset preeclampsia.
The aging process in the placenta can result in the release of substances that might negatively affect blood vessel function in the mother.
A proposed model outlines different stages in the progression of early-onset preeclampsia, distinguishing it from late-onset forms.

Simplified

Early-onset preeclampsia (EOPE) remains a leading cause of maternal and perinatal morbidity worldwide. This review synthesizes evidence that premature placental senescence, centered on syncytiotrophoblast stress and the senescence-associated secretory phenotype (SASP), provides a mechanistic framework connecting placental injury to the maternal syndrome. In EOPE, defective spiral artery remodeling (45) and repeated ischemia-reperfusion can promote oxidative damage, persistent DNA-damage responses, impaired autophagy, and durable cell-cycle arrest in trophoblast lineages. Convergent data show elevated senescence markers (p16INK4a, p21, SA-β-galactosidase, γ-H2AX), transcriptomic signatures consistent with placental SASP programs, and senescent syncytiotrophoblast secretion-PAI-1 (~4-fold) and activin A (~2-fold). The SASP can transform the placenta into a source of cytokines, antiangiogenic factors, cell-free nucleic acids, and extracellular vesicles that may bias the maternal circulation toward endothelial dysfunction. We propose a stage-based model of EOPE progression and discuss differences from late-onset disease. Senescence-linked circulating signals may support multimarker risk stratification and liquid-biopsy strategies. We emphasize that human causal evidence remains associative and the senescence model is best regarded as a testable framework complementing established immune, complement, and angiogenic models.

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Early aging of the placenta and its role in the mother's symptoms in early severe preeclampsia

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