Canine IgM ELISA Kit (A247165)

1 Citation

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Canine IgM ELISA Kit (A247165) has been discontinued and is no longer available.

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Name

Canine IgM ELISA Kit

Description

Canine IgM ELISA Kit is a sandwich Enzyme-Linked Immunosorbent Assay (sELISA) designed for the in vitro quantitative determination of canine IgM in serum, plasma, tissue homogenates, and other biological fluids.

Assay Type

Sandwich (quantitative)

Principle of Assay

Canine IgM ELISA Kit (A247165) employs the sandwich enzyme immunoassay technique for the quantitative measurement of canine IgM in serum, plasma, tissue homogenates, and other biological fluids. An antibody specific for IgM has been pre-coated onto a 96-well microtiter plate. The standards and test samples are added into the wells and the IgM present in each sample is bound to the wells by the immobilized antibody. Following incubation, the wells are washed and then incubated with Biotinylated Anti-IgM Antibody, which binds the captured IgM present in each well. Following incubation, unbound biotinylated detection antibody is removed by washing, and an HRP-Streptavidin conjugate is added to the wells and the microtiter plate is incubated. Following incubation and washing, TMB substrate solution is then used to visualize the HRP enzymatic reaction by catalysis to produce a blue-coloured product that changes to yellow after addition of acidic stop solution. The density of yellow is proportional to the amount of IgM captured in each well. The concentration of IgM can then be calculated by reading the O.D. absorbance at 450nm in a microplate reader and referring to the standard curve.

Platform

Pre-coated Microplate (12 x 8 well strips)

Detection Type

Colorimetric

Instrument

Colorimetric Microplate Reader

Sample Type

Serum, plasma, tissue homogenates, and other biological fluids.

Sensitivity

0.188 ng/ml

Product Range

0.313-20 ng/ml

Assay Time

4 hours

Reactivity

Canine

Recovery

Sample Type	n	Range	Average
Serum	5	85% - 96%	90%
EDTA Plasma	5	86% - 99%	93%
Heparin Plasma	5	88% - 100%	93%

Linearity

Sample Type	n	1:2	1:4	1:8
Serum	5	86-102%	86-95%	92-104%
EDTA Plasma	5	83-98%	85-100%	85-101%
Heparin Plasma	5	82-97%	81-99%	82-100%

Precision

Intra-assay CV: < 8%, Inter-assay CV: < 10%

Storage

Store at +4°C. Do not use past expiration date!

Synonyms

Ig mu chain C region, Ig mu chain C region BOT, Ig mu chain C region GAL, Ig mu chain C region OU, IGHM, Immunoglobulin heavy constant mu

Product Note

Information online is representative. Always refer to the Product Manual inside the kit.

Disclaimer

This product is for research use only. It is not intended for diagnostic or therapeutic use.

Kit Components

Item	Quantity	Storage
Pre-Coated 96 Well Microplate	12 x 8 Well Strips	+4°C
Lyopholized Standard	2 Vials	+4°C
Sample Dilution Buffer	20ml	+4°C
Biotinylated Detection Antibody	120µl	+4°C
Antibody Dilution Buffer	10ml	+4°C
HRP-Streptavidin Conjugate	120µl	+4°C
SABC Dilution Buffer	10ml	+4°C
TMB Substrate	10ml	+4°C
Stop Solution	10ml	+4°C
Wash Buffer (25X)	30ml	+4°C
Plate Sealers	5 Adhesive Strips	-
Foil Pouch	1 Zip-Sealed Pouch	-

Required Materials

The following materials are not included in the kit, but are required to run this assay:

Microplate reader capable of measuring absorbance at 450nm ± 10nm.
Squirt bottle, multichannel pipette reservoir, or automated microplate washer.
Graph paper or computer software capable of generating logarithmic functions.
Test tubes and Eppendorf tubes to prepare standards and samples.
Multi- and single-channel pipettes and sterile pipette tips.
Deionized or distilled water.
Absorbent paper towels.
37°C incubator.

Important Notes

Sample concentrations should be estimated before being used in the assay and a proper dilution factor should be selected to make the diluted target protein concentration fall in the optimal detection range of this kit.
Sample matrix components will interfere with the test results. All samples must be diluted at least 1:2 with Sample Dilution Buffer.
Hemolysis can greatly impact the validity of test results. Take care to minimize hemolysis.
This ELISA kit is intended for the analysis of biological samples and has not been validated for purified/recombinant proteins, industrial, or commercial materials. Performance with such samples cannot be guaranteed, as differences in expression, sequence, tags, folding, post-translational modifications, purity, activity, or buffer composition may affect assay results. For further guidance, please contact our technical support team.

Bring all reagents and samples to room temperature before use.

We recommend that all standards and samples be assayed in duplicate.

Step 1

Prepare all reagents, samples, and working standards as directed in the previous sections.

Step 2

Determine the number of microplate strips required for the assay and insert them into the plate frame. Unused strips should be stored in the foil pouch at +4°C.

Step 3

Add 100μl of standard solutions to the standard wells. Note: A plate layout is provided to record standards and samples assayed.

Step 4

Add 100μl of samples to the sample wells. Note: All samples must be properly diluted in order to produce sample values within the dynamic range of the assay. All samples must be diluted at least 1:2 with Sample Dilution Buffer.

Step 5

Cover with an adhesive plate sealer provided and incubate at 37°C for 90 minutes.

Step 6

Remove the plate sealer, aspirate the liquid from the plate, and wash the plate two times with Wash Buffer. Soak wells with 350μl of Wash Buffer for 1-2 minutes each time. Note: Complete removal of liquid at each step is essential to good performance. After the last wash, remove any remaining Wash Buffer by aspirating or decanting. Blot the plate onto paper towels or other absorbent material. Do not let the wells dry completely at any time!

Step 7

Add 100μl of Biotinylated Detection Antibody working solution to each well.

Step 8

Cover with a new adhesive plate sealer and incubate at 37°C for 60 minutes.

Step 9

Remove the plate sealer, aspirate the liquid from the plate, and wash the plate three times with Wash Buffer. Soak wells with 350μl of Wash Buffer for 1-2 minutes each time.

Step 10

Add 100μl of HRP-Streptavidin Conjugate (SABC) working solution to each well.

Step 11

Cover with a new adhesive plate sealer and incubate at 37°C for 30 minutes.

Step 12

Remove the plate sealer, aspirate the liquid from the plate, and wash the plate five times with Wash Buffer. Soak wells with 350μl of Wash Buffer for 1-2 minutes each time.

Step 13

Add 90μl of TMB Substrate to each well. Cover with a new adhesive plate sealer and incubate at 37°C in the dark for 10-20 minutes. Note: This incubation time is for reference only, the optimal reaction time should be determined by the end-user and can be shortened or extended according to the actual color change. The reaction may be terminated when a gradient is apparent in the standard wells. Do not exceed 30 minutes!

Step 14

Add 50μl of Stop Solution to each well. The color in the wells should change from blue to yellow immediately. Note: If the color in the wells is green or the color change does not appear uniform, gently tap the plate to ensure thorough mixing.

Step 15

Determine the optical density (O.D. value) of each well immediately using a microplate reader set to 450 nm.

Product Citations (1)

View Publication

Evaluation of Immune System Components in Dogs With Protein-Losing Enteropathy Compared to Healthy Controls

This publication cites Canine IgM ELISA Kit (A247165).

Article Abstract

Background: Immune system abnormalities including hypogammaglobulinemia and T-cell deficiency occur in humans with protein-losing enteropathy (PLE). It is unknown whether similar abnormalities occur in dogs with PLE.

Objective: To evaluate serum immunoglobulin (Ig) concentrations and immune cell populations in dogs with PLE (with histologic evidence of chronic inflammatory enteropathy, intestinal lymphangiectasia (IL), or both) compared to healthy controls (HC).

Animals: Eighteen dogs with PLE and 18 HC dogs.

Methods: Prospective study. Serum IgA, IgG, and IgM concentrations were measured via ELISA in treatment-naïve dogs with PLE and compared to concentrations in HC dogs. RNA gene expression of specific immune cell surface markers in peripheral blood mononuclear cells (PBMCs) was measured in both groups by quantitative PCR.

Results: Dogs with PLE had lower concentrations of serum IgG compared to HC dogs (4.5 mg/mL, range 0.67-22.4 mg/mL vs. 19 mg/mL, range 1.8-80.3 mg/mL; p < 0.001). Serum IgM concentrations were also lower in dogs with PLE versus HC (2.4 mg/mL, range 0.0009-53.1 mg/mL vs. 14.2 mg/mL, range 2.1-172.8 mg/mL; p = 0.002). Expression of CD3e (0.24, range 0.003-1.1 vs. 0.92, range 0.41-3.2; p < 0.001), CD5 (0.17, range 0.01-0.46 vs. 0.94, range 0.23-5; p < 0.001), and CD8 (0.47, range 0.06-1.7 vs. 0.92, range 0.32-2.4; p = 0.007) were reduced in dogs with PLE compared to their mean absolute expression in HC dogs.

Conclusions and clinical importance: Dogs with PLE have quantitative reductions in immune system components, similar to humans with IL. These abnormalities in immune system components might be considered in the management and monitoring of dogs with PLE.

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Canine IgM ELISA Kit (A247165)

Product Citations (1)