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This biomarker is also known as:
  • Serpin E1,
  • Serpin Peptidase Inhibitor, Clade E (Nexin, Plasminogen Activator Inhibitor Type 1), Member 1,
  • Plasminogen Activator Inhibitor 1,
  • PLANH1,
  • Serine (Or Cysteine) Proteinase Inhibitor, Clade E (Nexin, Plasminogen Activator Inhibitor Type 1), Member 1,
  • PAI,
  • PAI-1,
  • PAI1,
  • Endothelial plasminogen activator inhibitor,
  • tPAI1,

View in BioMuta


The SERPINE1 protein is a serine proteinase inhibitor (serpin) superfamily. SERPINE1 is the main inhibitor of tissue plasminogen activator (tPA) and urokinase (uPA), the activators of plasminogen and hence fibrinolysis. It is found in plasma and platelets and in endothelial, hepatoma and fibrosarcoma cells. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.


QA State: Curated
Type: Protein
Short Name:


There are no datasets associated with this biomarker.


The following organs have data associated with this biomarker…



Phase: Two
QA State: Curated


Mutations in the plasminogen activator inhibitor-1 (PAI-1) gene, along with increased PAI-1 levels, have been implicated in the pathogenesis of polycystic ovarian syndrome (PCOS).

Performance Comment

Of the 28 ovarian cancer biomarkers tested in prediagnostic specimens, from the PLCO, CA125 remains the single best biomarker for ovarian cancer and has its strongest signal within six months of diagnosis. SERPINE1, also known as PAI-1, alone was not a strong predictor.


This biomarker is currently being annotated or is under review. You must be logged in or do not have permission to view any additional information. Contact Heather Kincaid at if you should have access to this biomarker.

2015 EDRN PI Orientation

The New and Continuing EDRN Principal Investigator Orientation will take place January 20–21, 2016 in Bethesda, Maryland.

Announcement 08/26/2015

Thank you to everyone who made the 29th EDRN Steering Committee Meeting a success. The orientation for new and continuing EDRN PIs will be held Wednesday-Thursday, January 20-21, 2016, on the NCI campus. More information will be available later this summer.

Announcement 06/30/2015

A funding opportunity for a new pancreatic cancer initiative, called The Pancreatic Cancer Detection Consortium (U01), has been released. For more information, please go to /grants/guide/ pa-files/ PAR-15-289.html.