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Development, Vol 99, Issue 2 155-162, Copyright © 1987 by Company of Biologists

JOURNAL ARTICLES

Cell- and tissue-specific monoclonal antibodies in eggs and embryos of the ascidian Halocynthia roretzi

I Mita-Miyazawa, T Nishikata and N Satoh
Department of Zoology, Kyoto University, Japan.

To obtain specific immunological probes for studying molecular mechanisms involved in the early embryonic development of ascidians, we have produced monoclonal antibodies directed against a homogenate of larvae of the ascidian Halocynthia roretzi. Among these, we have screened monoclonal antibodies that specifically recognize cells and/or tissues of the embryo. Characterization of six epidermis-specific monoclonal antibodies (including larval tunic-specific and larval fin-specific), three muscle-specific antibodies, two endoderm-specific antibodies, one notochord-specific antibody and two monoclonal antibodies that specifically recognize trunk-lateral cells suggests that these monoclonal antibodies may be useful as markers for analysing molecular mechanisms involved in specification of these cells. Seven monoclonal antibodies characteristically stain intercellular materials of the developing embryo and may therefore be valid for studying cellular construction of the embryo. Furthermore, monoclonal antibodies that recognize components of follicle cells, perivitelline space and sperm have also been established.


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© The Company of Biologists Ltd 1987