Molecular pathways disrupted by gestational diabetes mellitus

Area of Science:

• Reproductive biology
• Endocrinology
• Molecular medicine

Background:

• Gestational diabetes mellitus (GDM) presents significant risks to maternal and infant health.
• Developing effective GDM therapeutics is a public health priority, hindered by incomplete understanding of its pathophysiology.
• Key features of GDM pregnancies include maternal insulin resistance, low-grade inflammation, and endothelial dysfunction.

Purpose of the Study:

• To review the identification of key molecular regulators implicated in GDM.
• To discuss the biochemical pathways involved in GDM pathogenesis.
• To highlight potential therapeutic intervention targets for GDM prevention.

Main Methods:

• Literature review of recent research on GDM pathophysiology.
• Analysis of candidate regulators in placental, adipose, and skeletal muscle tissues.
• Examination of molecular pathways including NF-κB, PPARs, sirtuins, AMPK, GSK3, PI3K/mTOR, inflammasome, and ER stress.

Main Results:

• Several molecular regulators have been identified as key modulators of insulin resistance, inflammation, and endothelial dysfunction in GDM.
• Specific pathways involving nuclear factor-κB (NF-κB), peroxisome proliferator-activated receptors (PPARs), sirtuins (SIRTs), 5' AMP-activated protein kinase (AMPK), glycogen synthase kinase 3 (GSK3), PI3K/mTOR, inflammasome, and endoplasmic reticulum (ER) stress are implicated.
• These pathways are dysregulated in tissues relevant to GDM, including placenta, maternal adipose tissue, and skeletal muscle.

Conclusions:

• The identified molecular regulators and their associated biochemical pathways represent critical targets for GDM intervention.
• Understanding these pathways offers potential for developing novel therapeutics to prevent GDM.
• This review consolidates current knowledge on GDM modulators, paving the way for future therapeutic strategies.