A simple hemolytic assay for bovine complement component C3 |
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| Authors: | A Mhatre W P Aston |
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| Institution: | 1. School of Chemistry & Chemical Engineering, Anhui Key laboratory of Coal Clean Conversion & Utilization, Anhui University of Technology, Ma''anshan 243002, Anhui Province, China;2. Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, China |
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| Abstract: | A simple, one-step, alternative pathway (AP) hemolytic assay for bovine C3 has been developed. Methylamine was used to prepare a bovine serum reagent, R3, functionally depleted of C3. The addition of purified bovine C3 to the R3 reconstituted, in a dose-dependent manner, the hemolytic activity for unsensitized heterologous erythrocytes. The assay was used to determine relative levels of C3 in different bovine serum samples. Human C3 and bovine C3 were interchangeable in the assay. Reconstitution of bovine and human R3 reagents with homologous or heterologous C3, in the presence of different species of erythrocytes, provided evidence that cell surface regulation of the homologous hemolytic AP may not be limited to the assembly and activity of the C3 convertase. The AP assay was more sensitive and less complex to perform than a standard classical pathway assay for bovine C3. |
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