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The Lambda Select cII Mutation Detection System

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Published on: April 26, 2018

Molecular immunotoxicology testing in vitro.

C Meredith¹, K Miller

¹Immunotoxicology Department, BIBRA Toxicology International, Woodmansterne Road, Carshalton, Surrey SM5 4DS, UK.

Toxicology in Vitro : an International Journal Published in Association with BIBRA

|August 10, 2010

Summary

This summary is machine-generated.

Researchers developed reproducible dot-blot assays to measure cytokine mRNA expression, aiding the development of in vitro immunotoxicology screening for drugs and chemicals.

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Area of Science:

Immunology
Toxicology
Molecular Biology

Background:

Cytokine expression analysis is crucial for developing in vitro immunotoxicological screening assays.
Reverse transcription-polymerase chain reaction (RT-PCR) is sensitive but lacks reproducibility, while dot-blot analysis offers a reproducible alternative.

Purpose of the Study:

To establish reproducible methods for analyzing cytokine mRNA expression.
To propose simple tests for predicting the immunomodulatory potential of new compounds.

Main Methods:

Utilized dot-blot analysis for reproducible cytokine mRNA expression quantification.
Investigated the effects of immunostimulatory and immunosuppressive drugs on cytokine mRNA levels in murine cell cultures.
Applied techniques to human peripheral blood mononuclear cells for assessing allergenic potential.

Main Results:

Macrophage IL-1 mRNA was induced by Biostim (10 pg/ml).
Cyclosporin A (1 ng/ml) inhibited lymphocyte-derived IL-2 mRNA expression.
Azathioprine and tributyltin oxide partially inhibited IL-2 and/or IL-2 receptor mRNA in mixed lymphocyte cultures.

Conclusions:

Dot-blot analysis provides a reproducible method for cytokine mRNA expression analysis.
Proposed assays can predict the immunomodulatory potential of compounds.
Techniques are applicable to human cells for evaluating drug and chemical allergenicity.