Cytokine Dynamics in Preeclampsia Pathophysiology

Preeclampsia is a complex multisystem disorder of pregnancy characterised by new-onset hypertension and proteinuria after 20 weeks’ gestation. Central to its pathophysiology is a disrupted balance between pro-inflammatory and anti-inflammatory cytokines at the maternal–fetal interface. In early gestation, controlled secretion of cytokines by trophoblasts and decidual immune cells supports spiral artery remodelling, placental perfusion and maternal immune tolerance. In preeclampsia, a shift towards a pro-inflammatory milieu—marked by elevated levels of tumour necrosis factor-alpha, interleukin-6 and interferon-gamma—drives endothelial dysfunction, oxidative stress and systemic vasoconstriction. Concurrently, diminished concentrations of regulatory cytokines such as interleukin-10 impair anti-inflammatory feedback, exacerbating placental hypoxia and maternal end-organ injury. Genetic variants in cytokine genes can further modulate individual susceptibility by altering gene expression or signalling pathways. Recent advances have elucidated intracellular signalling cascades—such as JAK/STAT, MAPK and PI3K/Akt—that transduce cytokine signals in trophoblasts and endothelial cells, revealing potential therapeutic targets. Furthermore, emerging evidence highlights the role of novel cytokines and chemokines, including interleukin-27 and interleukin-17 family members, in orchestrating immune cell recruitment and vascular adaptation. A detailed understanding of cytokine dynamics offers promise for predictive biomarkers and immunomodulatory interventions aimed at mitigating maternal and fetal complications.

Research from Nature Portfolio

Investigations into genetic determinants of cytokine regulation have revealed that polymorphic variants in the interleukin-27 gene influence preeclampsia risk by modulating the balance between pro-inflammatory Th17 responses and regulatory T-cell activity. Analysis of three single-nucleotide polymorphisms demonstrated that one genotype notably increases susceptibility, suggesting that IL-27-driven inhibition of pathogenic Th17 cells is a critical checkpoint in maintaining maternal tolerance. Functional studies further implicate altered IL-27 signalling in disrupted trophoblast differentiation and spiral artery remodelling, underscoring its foundational role in disease onset.

Cytokine Dynamics in Preeclampsia Pathophysiology publication trend

The graph below shows the total number of articles in cytokine dynamics in preeclampsia pathophysiology across all publications each year (not limited to Nature Index journals).

Technical terms

Cytokine: A small protein secreted by immune and non-immune cells that mediates intercellular communication and regulates inflammation.

Preeclampsia: A pregnancy disorder marked by hypertension and organ dysfunction, linked to placental and systemic endothelial pathology.

Endothelial dysfunction: Impaired function of blood vessel lining cells, leading to reduced vasodilation and increased permeability.

Polymorphism: A genetic variation in DNA sequence that may affect gene expression or protein function.

Th17 cells: A subset of CD4+ T helper cells producing interleukin-17, involved in pro-inflammatory responses.

References

1. Exploring the role of T helper subgroups and their cytokines in the development of pregnancy-induced hypertension. Frontiers in Immunology (2023).
2. The Enigmatic Interplay of Interleukin-10 in the Synergy of HIV Infection Comorbid with Preeclampsia. International Journal of Molecular Sciences (2024).
3. Polymorphisms within the Tumor Necrosis Factor-Alpha Gene Is Associated with Preeclampsia in Taiwanese Han Populations. Biomedicines (2023).
4. Polymorphisms of the IL27 gene in a Chinese Han population complicated with pre-eclampsia. Scientific Reports (2016).