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ELISA Kit for Placenta Growth Factor (PLGF) Homo sapiens (Human) Sandwich ELISA

PlGF2; PGF; PGFL; Placental Growth Factor-Like; Vascular Endothelial Growth Factor-Related Protein

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  • ELISA Kit for Placenta Growth Factor (PLGF) Packages (Simulation)
  • ELISA Kit for Placenta Growth Factor (PLGF) Packages (Simulation)
  • ELISA Kit for Placenta Growth Factor (PLGF) Results demonstration
  • SEA114Hu.jpg Typical Standard Curve
  • Certificate ISO9001: 2008, ISO13485: 2003 Registered

Recovery

Matrices listed below were spiked with certain level of recombinant Placenta Growth Factor (PLGF) and the recovery rates were calculated by comparing the measured value to the expected amount of Placenta Growth Factor (PLGF) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 95-103 98
EDTA plasma(n=5) 94-103 99
heparin plasma(n=5) 83-97 88

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Placenta Growth Factor (PLGF) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Placenta Growth Factor (PLGF) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Placenta Growth Factor (PLGF) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 79-103% 81-96% 97-105% 83-91%
EDTA plasma(n=5) 95-104% 88-96% 83-94% 79-92%
heparin plasma(n=5) 85-103% 90-98% 82-98% 91-99%

Stability

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
TMB Substrate 1×9mL Stop Solution 1×6mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C;
8. Add 50µL Stop Solution. Read at 450nm immediately.

ELISA Kit for Placenta Growth Factor (PLGF)

Test principle

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Placenta Growth Factor (PLGF). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Placenta Growth Factor (PLGF). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Placenta Growth Factor (PLGF), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Placenta Growth Factor (PLGF) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Citations

  • Mutant hypoxia inducible factor-1α improves angiogenesis and tissue perfusion in ischemic rabbit skeletal muscle PubMed: 20937289
  • Elevated PLGF contributes to small-cell lung cancer brain metastasisPubMed: 22797069
  • Photoreceptor avascular privilege is shielded by soluble VEGF receptor-1PubMed: PMC3687373
  • Sustained dual release of placental growth factor-2 and bone morphogenic protein-2 from heparin-based nanocomplexes for direct osteogenesisPubmed:27042064
  • Serum angiogenic profile in abnormal placentationPubmed:26863111
  • Administration of atosiban in patients with endometriosis undergoing frozen–thawed embryo transfer: a prospective, randomized studyPubmed:27143518
  • Placental Growth Factor Triggers Epithelial-to-Mesenchymal Transition-like Changes in Rat Type II Alveolar Epithelial Cells: Activation of Nuclear Factor κB Signalling Pathwaydoi:10.1111
  • Placenta growth factor contributes to cell apoptosis and epithelial-to-mesenchymal transition in the hyperoxia-induced acute lung injuryPubmed:27211521
  • Knockdown of placental growth factor (PLGF) mitigates hyperoxia-induced acute lung injury in neonatal rats: Suppressive effects on NFκB signaling pathwayPubmed:27280587
  • Relationship between elevated serum level of placental growth factor and status of gestational diabetes mellitusPubmed: 30935303
  • sFlt-1/PlGF Ratio in Prediction of Short-Term Neonatal Outcome of Small for Gestational Age Neonates34438609
  • Puerarin Reduces Radiation-Induced Vascular Endothelial Cell Damage Via miR-34a/Placental Growth FactorPubmed:35110976

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