Quantitative Western blot assay for measurement of the murine acute phase reactant, serum amyloid P component.
Quantitation of the murine acute-phase reactant, serum amyloid P component (SAP), by Western blot is described. The assay is sensitive, reliable and inexpensive. Electrophoresis in standard SDS-polyacrylamide gels (SDS-PAGE) effectively separates SAP from other serum proteins. Electrophoretic blotting of SAP from the SDS-PAGE onto nitrocellulose (NC) paper is followed by a bovine serum albumin 'blocking' wash and exposure to anti-SAP antibody. Subsequent incubation with radioiodinated protein A was followed by autoradiography, and SAP bands were cut from the NC paper and counted in a gamma counter. The utility of this method for quantitation of SAP in biological fluids was verified using sera from normal mice and mice undergoing an acute inflammatory response. The results confirm the elevation of SAP associated with acute inflammation. The sensitivity of this technique coupled with the minute volumes of biological sample required renders it of potential utility for SAP quantitation in a variety of inflammatory disease states.[1]References
- Quantitative Western blot assay for measurement of the murine acute phase reactant, serum amyloid P component. Griswold, D.E., Hillegass, L., Antell, L., Shatzman, A., Hanna, N. J. Immunol. Methods (1986) [Pubmed]
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