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AB269373

Human PAI1 ELISA Kit (SERPINE1)

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(4 Publications)

Human PAI1 ELISA Kit (SERPINE1) is a single-wash 90-min Simplestep used to quantify Human PAI1 (SERPINE1) with a sensitivity of 16 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.

- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
- Cited in over 5 citations

View Alternative Names

PAI1, PLANH1, SERPINE1, Plasminogen activator inhibitor 1, PAI, PAI-1, Endothelial plasminogen activator inhibitor, Serpin E1

16 Images
ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • ELISA

Supplier Data

ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Linearity of dilution.

Native PAI1 was measured in the following biological samples in a 2-fold dilution series. Sample dilutions are made in Sample Diluent NS.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Interpolated concentrations of native PAI1 in human serum and plasma samples.

The concentrations of PAI1 were measured in duplicates, interpolated from the PAI1 standard curves and corrected for sample dilution. Undiluted samples are as follows : serum 5%, plasma (citrate) 5%, plasma (EDTA) 10%, and plasma (heparin) 5%. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean PAI1 concentration was determined to be 32.4 ng/mL in serum, 36.6 ng/mL in plasma (citrate), 11.1 ng/mL in plasma (EDTA), and 10.1 ng/mL in plasma (heparin).

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Linearity of dilution is determined based on interpolated values from the standard curve. Linearity of dilution defines a sample concentration interval in which interpolated target concentrations are directly proportional to sample dilution.

Native PAI1 was measured in the following biological samples in a 2-fold dilution series. Sample dilutions are made in Sample Diluent NS.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Assay sensitivity.

The MDD was determined by calculating the mean of zero standard replicates and adding 2 standard deviations then extrapolating the corresponding concentration.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Example of human PAI1 standard curve in Sample Diluent NS.

The PAI1 standard curve was prepared as described. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Interpolated concentrations of native PAI1 in HUVEC cell culture supernatant, and HepG2 cell culture supernatant samples.

The concentrations of PAI1 were measured in duplicates, interpolated from the PAI1 standard curves and corrected for sample dilution. Undiluted samples are as follows : HUVEC cell culture supernatant 1 : 2,000 and HepG2 cell culture supernatant 1 : 400. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean PAI1 concentration was determined to be 2,061 ng/mL in HUVEC cell culture supernatant and 739 ng/mL in HepG2 cell culture supernatant.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Interpolated concentrations of native PAI1 in human stimulated PBMC cell culture supernatant and unstimulated PBMC cell culture supernatant samples.

The concentrations of PAI1 were measured in duplicates, interpolated from the PAI1 standard curves and corrected for sample dilution. Undiluted samples are as follows : stimulated PBMC cell culture supernatant 50% and unstimulated PBMC cell culture supernatant 50%. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean PAI1 concentration was determined to be 1,896 pg/mL in stimulated PBMC cell culture supernatant and 642 pg/mL in unstimulated PBMC cell culture supernatant.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Human PAI1 standard curve comparison.

Standard Curve comparison between human PAI1 SimpleStep ELISA kit and traditional ELISA kit from leading competitor. SimpleStep ELISA kit shows increased sensitivity.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Serum from ten individual healthy human female donors was measured in duplicate.

Interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean PAI1 concentration was determined to be 24 ng/mL with a range of 8 – 59 ng/mL.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Example of human PAI1 standard curve in 1X Cell Extraction Buffer PTR.

The PAI1 standard curve was prepared as described. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Linearity of dilution.

Native PAI1 was measured in the following biological samples in a 2-fold dilution series. Sample dilutions are made in 1X Cell Extraction Buffer PTR.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Linearity of dilution.

Native PAI1 was measured in the following biological samples in a 2-fold dilution series. Sample dilutions are made in Sample Diluent NS.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Example of human PAI1 standard curve in Sample Diluent NS.

The PAI1 standard curve was prepared as described. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Interpolated concentrations of native PAI1 in HUVEC cell extract and HepG2 cell extract samples based on a 500 μg/mL and 50 μg/mL extract load, respectively.

The concentrations of PAI1 were measured in duplicate and interpolated from the PAI1 standard curve and corrected for sample dilution. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean PAI1 concentration was determined to be 677 pg/mL in HUVEC cell extract and 989 pg/mL in HepG2 cell extract.

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)
  • sELISA

Supplier Data

Sandwich ELISA - Human PAI1 ELISA Kit (SERPINE1) (AB269373)

Example of human PAI1 standard curve in 1X Cell Extraction Buffer PTR.

The PAI1 standard curve was prepared as described. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

Key facts

Detection method

Colorimetric

Sample types

Heparin Plasma, Citrate plasma, Cell culture supernatant, Serum, Cell Lysate, EDTA Plasma

Reacts with

Human

Assay type

Sandwich (quantitative)

Sensitivity

= 16 pg/mL

Range

31.25 - 2000 pg/mL

Assay time

1h 30m

Assay Platform

Pre-coated microplate (12 x 8 well strips)

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Human PAI1 ELISA Kit (SERPINE1) ab269373 is a rapid single-wash 90-min Sandwich ELISA to measure Human PAI1 (SERPINE1)in cell culture supernatant, cell lysate, citrate plasma, EDTA plasma, heparin plasma, serum. This SimpleStep sensitivity is 16 pg/mL.

How the assay works

Human PAI1 (SERPINE1)SimpleStep ELISA®employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details.

Assay Specificity

Our SimpleStep ELISA® kits use recombinant monoclonal antibodies rigorously validated to ensure the highest level of consistency and reproducibility, improved sensitivity and specificity and ease of scalability and security of supply.
Please refer to our protocol booklet for more details.

Human PAI1 ELISA Kit (SERPINE1) ab269373 protocol summary

1. Mix: add samples/standards to the wells together with the capture and detector antibody cocktail. Incubate 1 hr at room temperature
2. Wash
3. Add TMB development solution - incubate for 10 min
4. Add Stop solution
5. Read the results on a plate reader at 450 nm

Plasminogen activator inhibitor-1 (PAI-1) or SERPINE1is encoded by the SERPINE1 gene. The PAI-1 protein is a serine protease inhibitor (serpin) that functions as the principal inhibitor of tissue plasminogen activator (tPA) and urokinase (uPA). The inhibition of tPA and uPA leads to increased occurrence and persistence of blood clots to form.

REACH authorisation
Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.

Precision

[ { "reproducibilityType": "Inter", "sample": "Serum", "replicates": 8, "mean": null, "standardDeviation": null, "coefficientOfVariability": "3.8" }, { "reproducibilityType": "Intra", "sample": "Serum", "replicates": 3, "mean": null, "standardDeviation": null, "coefficientOfVariability": "3.3" } ]

Recovery

[ { "sample": "Cell culture supernatant", "range": "88 - 102 %", "average": "= 96" }, { "sample": "Serum", "range": "86 - 95 %", "average": "= 90" }, { "sample": "EDTA Plasma", "range": "94 - 97 %", "average": "= 96" }, { "sample": "Heparin Plasma", "range": "97 - 103 %", "average": "= 100" }, { "sample": "Citrate plasma", "range": "97 - 107 %", "average": "= 103" }, { "sample": "Cell Lysate", "range": "108 - 111 %", "average": "= 108" } ]

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
+4°C

Product protocols

Target data

Serine protease inhibitor. Inhibits TMPRSS7 (PubMed : 15853774). Is a primary inhibitor of tissue-type plasminogen activator (PLAT) and urokinase-type plasminogen activator (PLAU). As PLAT inhibitor, it is required for fibrinolysis down-regulation and is responsible for the controlled degradation of blood clots (PubMed : 17912461, PubMed : 8481516, PubMed : 9207454). As PLAU inhibitor, it is involved in the regulation of cell adhesion and spreading (PubMed : 9175705). Acts as a regulator of cell migration, independently of its role as protease inhibitor (PubMed : 15001579, PubMed : 9168821). It is required for stimulation of keratinocyte migration during cutaneous injury repair (PubMed : 18386027). It is involved in cellular and replicative senescence (PubMed : 16862142). Plays a role in alveolar type 2 cells senescence in the lung (By similarity). Is involved in the regulation of cementogenic differentiation of periodontal ligament stem cells, and regulates odontoblast differentiation and dentin formation during odontogenesis (PubMed : 25808697, PubMed : 27046084).
See full target information SERPINE1

Publications (4)

Recent publications for all applications. Explore the full list and refine your search

Journal of clinical medicine research 17:97-105 PubMed39981339

2025

Ischemic Preconditioning Negatively Affects Thrombogenic Clotting Profile in Cerebral Small Vessel Occlusion Stroke Patients.

Applications

Unspecified application

Species

Unspecified reactive species

Line Boel Norregaard,Nicolai Rytter,Laura Cathrine Christoffersen,Lasse Gliemann,Christian Stevns Hansen,Matthew Lawrence,Philip Adrian Evans,Christina Kruuse,Ylva Hellsten

Thrombosis journal 22:35 PubMed38581046

2024

Exercise transiently increases the density of incipient blood clots in antiplatelet-treated lacunar stroke patients.

Applications

Unspecified application

Species

Unspecified reactive species

L B Nørregaard,K A Wickham,J S Jeppesen,N Rytter,L C Christoffersen,L Gliemann,M Lawrence,P A Evans,C Kruuse,Y Hellsten

Journal of Crohn's & colitis 18:392-405 PubMed37751311

2023

Plasminogen Activator Inhibitor 1 Is a Novel Faecal Biomarker for Monitoring Disease Activity and Therapeutic Response in Inflammatory Bowel Diseases.

Applications

Unspecified application

Species

Unspecified reactive species

Boldizsár Jójárt,Tamás Resál,Diána Kata,Tünde Molnár,Péter Bacsur,Viktória Szabó,Árpád Varga,Kata Judit Szántó,Petra Pallagi,Imre Földesi,Tamás Molnár,József Maléth,Klaudia Farkas

Anesthesiology 137:67-78 PubMed35412597

2022

Suppression of Fibrinolysis and Hypercoagulability, Severity of Hypoxemia, and Mortality in COVID-19 Patients: A Retrospective Cohort Study.

Applications

Unspecified application

Species

Unspecified reactive species

Kristin M Corey,Lyra B Olson,Ibtehaj A Naqvi,Sarah A Morrison,Connor Davis,Shahid M Nimjee,Loretta G Que,Robin E Bachelder,Bryan D Kraft,Lingye Chen,Smita K Nair,Jerrold H Levy,Bruce A Sullenger
View all publications
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