ELISA Kit for Milk Fat Globule EGF Factor 8 (MFGE8)

HMFG; MFGM; SED1; BA46; EDIL1; OAcGD3S; SPAG10; hP47; Medin; Lactadherin; Sperm Associated Antigen 10; Sperm Surface Protein hP47; Milk fat globule-EGF factor 8

Specificity

This assay has high sensitivity and excellent specificity for detection of Milk Fat Globule EGF Factor 8 (MFGE8).
No significant cross-reactivity or interference between Milk Fat Globule EGF Factor 8 (MFGE8) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Milk Fat Globule EGF Factor 8 (MFGE8) and the recovery rates were calculated by comparing the measured value to the expected amount of Milk Fat Globule EGF Factor 8 (MFGE8) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 80-97 82
EDTA plasma(n=5) 91-98 94
heparin plasma(n=5) 91-98 95

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Milk Fat Globule EGF Factor 8 (MFGE8) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Milk Fat Globule EGF Factor 8 (MFGE8) 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 Milk Fat Globule EGF Factor 8 (MFGE8) 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) 84-103% 80-95% 85-101% 79-90%
EDTA plasma(n=5) 82-89% 91-99% 96-104% 82-92%
heparin plasma(n=5) 80-101% 89-96% 83-104% 83-94%

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.

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Magazine Citations
Fertility and Sterility Tumor necrosis factor α up-regulates endometrial milk fat globule-epidermal growth factor 8 protein production via nuclear factor κB activation, resulting in cell migration of epithelial cells. Pubmed: 24262600
U.S. Patent Application Biomarker for amyloid-b-related neurological disorders US20130302838
IUBMB Life. Elevated serum milk fat globule-epidermal growth factor 8 levels in type 2 diabetic patients are suppressed by overweight or obese status. pubmed:28067023
Journal of diabetes investigation Circulating milk fat globule-epidermal growth factor 8 levels are increased in pregnancy and gestational diabetes mellitus. pubmed:28035763
The Journal of Steroid Biochemistry and Molecular Biology Modifications of Western-type diet regarding protein, fat and sucrose levels as modulators of steroid metabolism and activity in liver pubmed:27471150
Journal of Steroid Biochemistry and Molecular Biology Depressive-like effect of prenatal exposure to DDT involves global DNA hypomethylation and impairment of GPER1/ESR1 protein levels but not ESR2 and AHR/ARNT signaling pubmed:28263910
Oncotarget Pantoprazole blocks the JAK2/STAT3 pathway to alleviate skeletal muscle wasting in cancer cachexia by inhibiting inflammatory response. pubmed:28489606
Molecular and Cellular Neuroscience TGF-β1 enhances phagocytic removal of neuron debris and neuronal survival by olfactory ensheathing cells via integrin/MFG-E8 signaling pathway 10.1016/j.mcn.2017.08.006
Amyloid Needle-shaped amyloid deposition in rat mammary gland: evidence of a novel amyloid fibril protein Pubmed: 31615282
clinical and translational medicine Milk fat globule EGF factor 8 restores mitochondrial function via integrin©\medicated activation of the FAK©\STAT3 signaling pathway in acute pancreatitis 33634976
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