Abstract
In order to characterize in more detail hemocytes from Mytilus edulis and establish links between histological and cytological featues, monoclonal antibodies (MABs) were prepared using hybridoma technology. Five MABs were identified and their reactivity patterns were analyzed with both immunoperoxidase and ultrastructural immunogold labelling. Four MAB classes were identified by their immunostaining patterns. Optical and ultrastructural examination revealed that Class I MAB reacted specifically with basophilic granulocytes (granulocytes containing small granules). Class II and III MABs differed in the intensity of their indirect immunofluorescence and degree of immunoperoxidase labelling, but all recognized both basophilic and eosinophilic granulocytes. Epitopes recognized by Class IV MABs were not always present in basophilic granulocytes, whereas they were always expressed in the eosinophilic granulocytes (granulocytes containing large granules) and could constitute differentiation antigens which progressively form during the maturation process. Molecular weights of the proteins recognized by these MABs were determined by Western blotting. It is concluded that immunostaining can identify at least three hemocyte types in M. edulis.
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Communicated by J. M. Pérès, Marseille
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Noël, D., Pipe, R., Elston, R. et al. Antigenic characterization of hemocyte subpopulations in the mussel Mytilus edulis by means of monoclonal antibodies. Marine Biology 119, 549–556 (1994). https://doi.org/10.1007/BF00354317
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DOI: https://doi.org/10.1007/BF00354317