Please use this identifier to cite or link to this item: https://doi.org/10.1016/0020-7519(96)00016-1
Title: Production and characterization of murine monoclonal antibodies to Blastocystis hominis
Authors: Tan, S.W.
Ho, L.C.
Moe, K.T.
Chen, X.Q.
Ng, G.C.
Yap, E.H. 
Singh, M. 
Keywords: Blastocystis hominis
cross-reactivity
fluorescence
immunoblot
monoclonal antibodies
Issue Date: 1996
Source: Tan, S.W., Ho, L.C., Moe, K.T., Chen, X.Q., Ng, G.C., Yap, E.H., Singh, M. (1996). Production and characterization of murine monoclonal antibodies to Blastocystis hominis. International Journal for Parasitology 26 (4) : 375-381. ScholarBank@NUS Repository. https://doi.org/10.1016/0020-7519(96)00016-1
Abstract: Several hybridomas producing antibodies detected by enzyme-linked immunosorbent assay (ELISA) were established by fusions of mouse myeloma P3.X63.Ag8.U1 with spleen cells from BALB/c mice immunized against an isolate of Blastocystis hominis. Five strongly positive hybrids (6B6, 1D5, 1E7, 4F7 and 4G11) were cloned and all were found to secrete IgM monoclonal antibodies. Four MAbs (6B6, 1E7, 4F7 and 4G11) reacted in immunoblots with a number of B. hominis antigens (mol. wt ranging from 25,000 to 220,000) which were likely to be repeating oligosaccharide epitopes located on glycoproteins, as indicated by pronase and periodate treatment. Another MAb (ID5) reacted with a single antigenic band (mol. wt 30,5000). Similar results were obtained in immunoblots using 4 other B. hominis isolates. Indirect fluorescent-antibody assay (IFA) using MAbs showed 3 patterns of reactivity. 1D5 showed patchy fluorescence, 4F7 showed peripheral fluorescence and 6B6, 1E7 and 4G11 showed bright diffuse fluorescence. These patterns were observed for all 5 human Blastocystis isolates. The MAbs exhibited some cross- reactivity with 2 reptilian Blastocystis isolates but not with Giardia intestinalis. Trichomonas vaginalis or Entamoeba histolytica.
Source Title: International Journal for Parasitology
URI: http://scholarbank.nus.edu.sg/handle/10635/31300
ISSN: 00207519
DOI: 10.1016/0020-7519(96)00016-1
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