Unknown

Dataset Information

0

Detection and Inhibition of IgE for cross-reactive carbohydrate determinants evident in an enzyme-linked immunosorbent assay for detection of allergen-specific IgE in the sera of dogs and cats.


ABSTRACT:

Background

It has been demonstrated recently that immunoglobulin (Ig)E specific for cross-reactive carbohydrate determinants (CCD) is present in the serum of allergen-sensitized dogs and cats, and that these CCD-specific antibodies might confound serological testing.

Hypothesis/objective

The objective was to document the prevalence of CCD detectable in a monoclonal cocktail-based enzyme-linked immunosorbent assay designed for the detection of allergen-specific IgE in the sera of dogs and cats, and to define a means for successful inhibition of these CCD.

Methods and materials

The incidence of reactivity to bromelain and a commercially available inhibitor of carbohydrate-specific antibodies (RIDA-CCD) was evaluated in 100 dog sera samples before and after inhibition with RIDA-CCD and a proprietary inhibitor containing carbohydrates derived from bromelain (BROM-CCD). Subsequently, sera from 600 dogs and 600 cats were evaluated using a serum diluent with and without BROM-CCD.

Results

Both the RIDA-CCD and BROM-CCD inhibitors demonstrated successful reduction of CCD reactivity, although a more efficient profile of inhibition was evident with BROM-CCD. Mite reactivity in dog and cat sera was largely unaffected; however, substantial inhibition for pollen allergens (trees, grasses and weeds) was shown. After BROM-CCD inhibition, 1% of canine samples and 13% of feline samples were rendered completely negative for allergen reactivity.

Conclusions and clinical importance

The results demonstrate that BROM-CCD is effective in reducing reactions with irrelevant carbohydrates, and that inhibition of CCD reactivity might substantially alter the outcome of the in vitro reactivity profile used for selection of allergens to be included in an immunotherapeutic regime.

SUBMITTER: Lee KW 

PROVIDER: S-EPMC7756665 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

altmetric image

Publications

Detection and Inhibition of IgE for cross-reactive carbohydrate determinants evident in an enzyme-linked immunosorbent assay for detection of allergen-specific IgE in the sera of dogs and cats.

Lee Kenneth W KW   McKinney Brennan H BH   Blankenship Karen D KD   Morris Daniel O DO  

Veterinary dermatology 20200925 6


<h4>Background</h4>It has been demonstrated recently that immunoglobulin (Ig)E specific for cross-reactive carbohydrate determinants (CCD) is present in the serum of allergen-sensitized dogs and cats, and that these CCD-specific antibodies might confound serological testing.<h4>Hypothesis/objective</h4>The objective was to document the prevalence of CCD detectable in a monoclonal cocktail-based enzyme-linked immunosorbent assay designed for the detection of allergen-specific IgE in the sera of d  ...[more]

Similar Datasets

| S-EPMC5573986 | biostudies-literature
| S-EPMC7116130 | biostudies-literature
| S-EPMC5561598 | biostudies-literature
| S-EPMC7179882 | biostudies-literature
| S-EPMC2612609 | biostudies-literature
| S-EPMC9497870 | biostudies-literature
| S-EPMC2620667 | biostudies-literature
| S-EPMC4921698 | biostudies-literature
| S-EPMC4223978 | biostudies-literature
| S-EPMC11008310 | biostudies-literature