The availability of convenient assays for the detection and quantification of pathogen-associated molecular patterns (PAMPs) is limited. In the case of lipopolysaccharide (LPS) the so-called LAL (limulus amebocyte lysate) test is available, an assay that is performed with the lysate of the blood of the horse shoe crab. Although a sensitive and convenient assay, it lacks specificity, since it is affected by other endotoxins like, for instance, fungal cell walls as well. Here, we describe a bioassay that can be used to detect and quantitate PAMPs in environmental samples. More specific we demonstrate the usage of TLR2 and TLR4/CD14/MD2 transfected Hek293 cells to quantitatively determine bacterial lipoproteins and LPS, respectively. We show the usefulness of these assays to measure LPS in tobacco before and after combustion.
CITATION STYLE
Peters, M., Bonowitz, P., & Bufe, A. (2017). A bioassay for the determination of lipopolysaccharides and lipoproteins. In Methods in Molecular Biology (Vol. 1600, pp. 143–150). Humana Press Inc. https://doi.org/10.1007/978-1-4939-6958-6_14
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