Multiplex Assay Kit for Interleukin 28B (IL28B) ,etc. by FLIA (Flow Luminescence Immunoassay)

IFNL3; Interferon,Lambda 3; Cytokine Zcyto22

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

Specificity

This assay has high sensitivity and excellent specificity for detection of Interleukin 28B (IL28B) ,etc. by FLIA (Flow Luminescence Immunoassay).
No significant cross-reactivity or interference between Interleukin 28B (IL28B) ,etc. by FLIA (Flow Luminescence Immunoassay) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Interleukin 28B (IL28B) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Interleukin 28B (IL28B) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 78-95 81
EDTA plasma(n=5) 90-101 97
heparin plasma(n=5) 92-101 96

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Interleukin 28B (IL28B) ,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 Interleukin 28B (IL28B) ,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 Interleukin 28B (IL28B) ,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) 84-98% 81-90% 87-101% 90-101%
EDTA plasma(n=5) 89-97% 93-101% 84-98% 96-105%
heparin plasma(n=5) 79-98% 79-89% 83-97% 98-105%

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#:IL28B) 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
Journal of Antimicrobial Chemotherapy Impact of IL28B gene polymorphisms on interferon-λ3 plasma levels during pegylated interferon-α/ribavirin therapy for chronic hepatitis C in patients coinfected with HIV PubMed: 22294646
Cytokine Different effects of three interferons L on Toll-like receptor-related gene expression in HepG2 cells. Pubmed: 24041672
Hepatology Polymorphisms in melanoma differentiation‐associated gene 5 link protein function to clearance of hepatitis C virus Pubmed:25130193
Cytokine. Increased concentration of interferon lambda-3, interferon beta and interleukin-10 in the cerebrospinal fluid of patients with tick-borne encephalitis Pubmed:25461389
J Biomed Res.  Impact of IL28B gene polymorphisms rs8099917 and rs12980275 on response to pegylated interferon-α/ribavirin therapy in chronic hepatitis C genotype 4 … pmc:PMC4726832
Journal of Biomedical Research Impact of IL28B gene polymorphisms rs8099917 and rs12980275 on response to pegylated interferon-α/ribavirin therapy in chronic hepatitis C genotype 4 patients PMC4726832
LUPUS Collagen triple helix repeat containing-1: a novel biomarker associated with disease activity in Systemic lupus erythematosus Pubmed: 30336754
Catalog No. Related products for research use of Mus musculus (Mouse) Organism species Applications (RESEARCH USE ONLY!)
MEC028Mu Mini Samples ELISA Kit for Interleukin 28B (IL28B) Enzyme-linked immunosorbent assay for Antigen Detection.
LMC028Mu Multiplex Assay Kit for Interleukin 28B (IL28B) ,etc. by FLIA (Flow Luminescence Immunoassay) FLIA Kit for Antigen Detection.