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Alteration of heat shock protein 20 expression in preeclamptic patients and its effect in vascular and coagulation

Fanfan Li1, Mengzhou He1, Meitao Yang1

  • 1Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.

Frontiers of Medicine
|March 10, 2018
PubMed

Insights

Decreased levels of Heat Shock Protein 20 (HSP20) in preeclampsia (PE) may contribute to the disorder. Reduced HSP20 impacts vascular function and blood clotting, suggesting a role in PE pathogenesis.

Area of Science:

  • Obstetrics
  • Cardiovascular Biology
  • Hematology

Background:

  • Preeclampsia (PE) is a major cause of maternal and perinatal mortality globally.
  • PE is characterized by excessive vasoconstriction and impaired coagulation.
  • The role of Heat Shock Protein 20 (HSP20) in PE pathogenesis is not well understood.

Purpose of the Study:

  • To investigate the levels and function of HSP20 in women with and without PE.
  • To explore the association between HSP20 and vascular/coagulation abnormalities in PE.

Main Methods:

  • Collected chorionic plate resistance arteries (CPAs) and serum from healthy pregnant women and those with PE.
  • Measured HSP20 and phosphorylated HSP20 levels.
  • Assessed CPA vasodilative function and analyzed coagulation parameters.

Main Results:

  • HSP20 and phosphorylated HSP20 were downregulated in CPAs from women with PE.
  • Preeclamptic vessels showed impaired relaxation responses.
  • Serum HSP20 was reduced in PE, alongside decreased platelet volume and increased clotting times.

Conclusions:

  • Decreased HSP20 levels in PE may contribute to impaired vasodilation and dysregulated coagulation.
  • HSP20's role in vasorelaxation and coagulation suggests its involvement in PE pathogenesis.

Keywords:
coagulation-fibrinolytic systemheat shock protein 20preeclampsiavascular relaxation

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