Quantification of alpha-tubulin isotypes by sandwich ELISA with signal amplification through biotinyl-tyramide or immuno-PCR

0422832 - ÚMG 2014 RIV NL eng J - Journal Article
Dráberová, Eduarda - Stegurová, Lucie - Sulimenko, Vadym - Hájková, Zuzana - Dráber, Petr - Dráber, Pavel
Quantification of alpha-tubulin isotypes by sandwich ELISA with signal amplification through biotinyl-tyramide or immuno-PCR.
Journal of Immunological Methods. Roč. 395, 1-2 (2013), s. 63-70. ISSN 0022-1759. E-ISSN 1872-7905
R&D Projects: GA AV ČR KAN200520701; GA ČR GAP302/12/1673; GA ČR GPP302/11/P709; GA ČR GAP302/10/1759; GA ČR GA301/09/1826; GA MŠMT(CZ) LD13015; GA MŠMT LD12073
Institutional support: RVO:68378050
Keywords : alpha-tubulin isotypes * biotinyl-tyramide * ELISA * immuno-PCR * mast cells
Subject RIV: EB - Genetics ; Molecular Biology
Impact factor: 2.005, year: 2013

Microtubules formed by alpha beta-tubulin dimers represent cellular structures that are indispensable for the maintenance of cell morphology and for cell motility generation. Microtubules in intact cells are in highly regulated equilibrium with cellular pools of soluble tubulin dimers. Sensitive, reproducible and rapid assays are necessary to monitor tubulin changes in cytosolic pools after treatment with anti-mitotic drugs, during the cell cycle or activation and differentiation events. Here we describe new assays for alpha-tubulin quantification. The assays are based on sandwich ELISA, and the signal is amplified with biotinyl-tyramide or immuno-PCR. Matching monoclonal antibody pair recognizes phylogenetically highly conserved epitopes localized outside the C-terminal isotype-defining region. This makes it possible to detect alpha-tubulin isotypes in different cell types of various species. Biotinyl-tyramide amplification and immuno-PCR amplification enable detection of tubulin at concentrations 2.5 ng/ml and 0.086 ng/ml, respectively. Immuno-PCR detection shows enhanced sensitivity and wider dynamic range when compared to ELISA with biotinyl-tyramide detection. Our results on taxol-treated and activated bone marrow-derived mast cells demonstrate, that the assays allow sensitive quantification of tubulin in complex biological fluids. (C) 2013 Elsevier B.V. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0229018