Plasminogen activator inhibitor-1 (PAI-1) also known as endothelial plasminogen activator inhibitor (serpin E1) is a protein that in humans is encoded by the SERPINE1 gene.

Mar 30, 2025 · SERPINE1 (Serpin Family E Member 1) is a Protein Coding gene. Diseases associated with SERPINE1 include Plasminogen Activator Inhibitor-1 Deficiency and Congenital Plasminogen Activator Inhibitor Type 1 Deficiency.

Plasminogen activator inhibitor-1 (PAI-1) is a member of the superfamily of serine-protease inhibitors (or serpins), and the principal inhibitor of both the tissue-type and the urinary-type plasminogen activator, the two plasminogen activators able to activate plasminogen.

Dec 7, 2017 · Introduction: Plasminogen activator inhibitor type 1 (PAI-1) is the most important regulator of fibrinolysis. Elevated PAI-1 levels are reported to be prothrombotic and have been associated with cardiovascular disease, obesity and cancer.

The SERPINE1 gene provides instructions for making a protein called plasminogen activator inhibitor 1 (PAI-1). PAI-1 is involved in normal blood clotting (hemostasis). After an injury, clots protect the body by sealing off damaged blood vessels and preventing further blood loss.

Recent studies suggest that PAI-1 is not only a marker but also a key mediator of cellular senescence and organismal aging. Here, we review the significance of PAI-1 as a bonafide marker as well as a critical mediator of cellular senescence associated with aging and aging-related pathologies.

Aug 3, 2017 · The diagnosis of complete PAI-1 deficiency is established in a proband when PAI-1 antigen is undetectable and PAI-1 activity is lower than 1 IU/mL and/or biallelic SERPINE1 pathogenic variants are identified on molecular genetic testing.

PAI-1 modulates cell migration by regulating ECM proteolysis. Physiological control of pericellular proteolysis occurs primarily through the regulation of plasminogen activation at the cell surface, which, in turn contributes to downstream MMP activity.

Nov 6, 2003 · Background and Purpose— Plasminogen activator inhibitor type 1 (PAI-1) is the main inhibitor of fibrinolysis, and high levels may increase the risk of cardiovascular disease. The 4G/5G polymorphism affects PAI-1 gene transcription with lower levels of plasma PAI-1 in the presence of the 5G allele.

Jul 1, 1997 · Plasminogen activator inhibitor-1 (PAI-1), the primary inhibitor of tissue- and urokinase-type plasminogen activators, is considered a critical regulator of the fibrinolytic system. We previously reported a child with abnormal bleeding and complete PAI-1 deficiency caused by a frame-shift mutation in exon 4 of the PAI-1 gene.