Papagudi Sriram, Nicolas Kalogerakis , Leo A. Behie
{"title":"An investigation into the possible effects of proteolysis on IgM enzyme-linked immunosorbent assay titres","authors":"Papagudi Sriram, Nicolas Kalogerakis , Leo A. Behie","doi":"10.1016/S0923-0467(96)03115-6","DOIUrl":null,"url":null,"abstract":"<div><p>On the basis of the theory of affinity it is shown that enzyme-linked immunosorbent assay titres cannot increase as a result of proteolysis when all the antibody proteolytic fragments have approximately the same association constants as the intact antibody for the reaction with the antigen and with the enzyme-conjugated antibody. This finding was experimentally confirmed by proteolysis experiments carried out with a monoclonal IgM antibody against Lewis<sup>b</sup> antigen using trypsin. The experimental results with this particular antibody confirmed that proteolysis cannot enhance ELISA titres in hybridoma cultures with serum-free medium or with serum-supplemented medium.</p></div>","PeriodicalId":101226,"journal":{"name":"The Chemical Engineering Journal and the Biochemical Engineering Journal","volume":"65 1","pages":"Pages 87-91"},"PeriodicalIF":0.0000,"publicationDate":"1997-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0923-0467(96)03115-6","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Chemical Engineering Journal and the Biochemical Engineering Journal","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0923046796031156","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
On the basis of the theory of affinity it is shown that enzyme-linked immunosorbent assay titres cannot increase as a result of proteolysis when all the antibody proteolytic fragments have approximately the same association constants as the intact antibody for the reaction with the antigen and with the enzyme-conjugated antibody. This finding was experimentally confirmed by proteolysis experiments carried out with a monoclonal IgM antibody against Lewisb antigen using trypsin. The experimental results with this particular antibody confirmed that proteolysis cannot enhance ELISA titres in hybridoma cultures with serum-free medium or with serum-supplemented medium.