Multiplex Assay Kit for Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay)

EPR; ER; Proepiregulin

(Note: Up to 8-plex in one testing reaction)

Specificity

This assay has high sensitivity and excellent specificity for detection of Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay).
No significant cross-reactivity or interference between Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 83-92 88
EDTA plasma(n=5) 92-101 98
heparin plasma(n=5) 78-103 90

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) 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 Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) 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) 99-105% 89-97% 95-102% 98-105%
EDTA plasma(n=5) 91-104% 80-103% 94-101% 79-98%
heparin plasma(n=5) 95-104% 84-94% 80-98% 78-98%

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
96-well plate 1 Plate sealer for 96 wells 4
Pre-Mixed Standard 2 Standard Diluent 1×20mL
Pre-Mixed Magnetic beads (22#:EREG) 1 Analysis buffer 1×20mL
Pre-Mixed Detection Reagent A 1×120μL Assay Diluent A 1×12mL
Detection Reagent B (PE-SA) 1×120μL Assay Diluent B 1×12mL
Sheath Fluid 1×10mL Wash Buffer (30 × concentrate) 1×20mL
Instruction manual 1

Assay procedure summary

1. Preparation of standards, reagents and samples before the experiment;
2. Add 100μL standard or sample to each well,
    add 10μL magnetic beads, and incubate 90min at 37°C on shaker;
3. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60min at 37°C on shaker;
4. Wash plate on magnetic frame for three times;
5. Add 100μL prepared Detection Reagent B, and incubate 30 min at 37°C on shaker;
6. Wash plate on magnetic frame for three times;
7. Add 100μL sheath solution, swirl for 2 minutes, read on the machine.

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Magazine Citations
British Journal of Cancer Cross-suppression of EGFR ligands amphiregulin and epiregulin and de-repression of FGFR3 signalling contribute to cetuximab resistance in wild-type KRAS tumour cells Nature: 2012103
J Pharmacol Exp Ther. Aryl hydrocarbon receptor antagonism attenuates growth factor expression, proliferation, and migration in fibroblast-like synoviocytes from patients with rheumatoid arthritis. Pubmed: 24309559
Molecular Carcinogenesis The Ah receptor regulates growth factor expression in head and neck squamous cell carcinoma cell lines Pubmed:23625689
Am J Physiol Gastrointest Liver Physiol. Epiregulin promotes the emergence and proliferation of adult liver progenitor cells. Pubmed:24812054
European Review for Medical and Pharmacological Sciences Epiregulin-loaded PLGA nanoparticles increase human keratinocytes proliferation: preliminary data pubmed:27383296
Oncotarget Overexpression of a functional calcium-sensing receptor dramatically increases osteolytic potential of MDA-MB-231 cells in a mouse model of bone metastasis through epiregulin-mediated osteoprotegerin downregulation PMC5593575
American journal of respiratory cell and molecular biology Potential Involvement of the Epidermal Growth Factor Receptor Ligand Epiregulin and Matrix Metalloproteinase-1 in Pathogenesis of Chronic Rhinosinusitis pubmed:28398769
International Journal of Cancer Epigenetic regulation of Amphiregulin and Epiregulin in colorectal cancer Pubmed: 30252132
Epiregulin is released from intervertebral disks and induces spontaneous activity in pain pathways Doi: 10.1097/PR9.0000000000000718
Cell proliferation Epiregulin enhances odontoblastic differentiation of dental pulp stem cells via activating MAPK signalling pathway Pubmed: 31454111
International Journal of Molecular Sciences Promising Therapeutic Efficacy of GC1118, an Anti-EGFR Antibody, against KRAS Mutation-Driven Colorectal Cancer Patient-Derived Xenografts Pubmed: 31771279
Neoplasia Patient-derived xenograft (PDX) models of colorectal carcinoma (CRC) as a platform for chemosensitivity and biomarker analysis in personalized medicine Pubmed: 33212364
Reprod Sci Compromised Cumulus-Oocyte Complex Matrix Organization and Expansion in Women with PCOS 34748173
Tissue and Cell MiR-192-5p suppresses M1 macrophage polarization via epiregulin (EREG) downregulation in gouty arthritis 34715618
Catalog No. Related products for research use of Homo sapiens (Human) Organism species Applications (RESEARCH USE ONLY!)
RPB945Hu02 Recombinant Epiregulin (EREG) Positive Control; Immunogen; SDS-PAGE; WB.
RPB945Hu04 Recombinant Epiregulin (EREG) Positive Control; Immunogen; SDS-PAGE; WB.
RPB945Hu01 Recombinant Epiregulin (EREG) Positive Control; Immunogen; SDS-PAGE; WB.
RPB945Hu03 Recombinant Epiregulin (EREG) Positive Control; Immunogen; SDS-PAGE; WB.
PAB945Hu02 Polyclonal Antibody to Epiregulin (EREG) WB
PAB945Hu01 Polyclonal Antibody to Epiregulin (EREG) WB
PAB945Hu04 Polyclonal Antibody to Epiregulin (EREG) WB; IHC; ICC; IP.
MAB945Hu22 Monoclonal Antibody to Epiregulin (EREG) WB; IHC; ICC; IP.
SEB945Hu ELISA Kit for Epiregulin (EREG) Enzyme-linked immunosorbent assay for Antigen Detection.
SCB945Hu CLIA Kit for Epiregulin (EREG) Chemiluminescent immunoassay for Antigen Detection.
LMB945Hu Multiplex Assay Kit for Epiregulin (EREG) ,etc. by FLIA (Flow Luminescence Immunoassay) FLIA Kit for Antigen Detection.