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HomeZell-MarkerAngewandte Zellmarkierung → Correlation of cell division and specific protein production during the course of lymphoid cell differentiation




Correlation of cell division and specific protein production during the course of lymphoid cell differentiation

Wolf D. Kuhlmann, M. Bouteille, S. Avrameas

Immunocytochemistry SFB 136 and Institut für Nuklearmedizin DKFZ Heidelberg, BRD
Laboratoire de Pathologie Cellulaire, Centre des Cordeliers,
Université de Paris VI, 75270 Paris Cx 06, France
Unité d’Immunocytochimie, Département de Biologie Moléculaire,
Institut Pasteur, 75015 Paris, France



Mice were immunized with horseradish peroxidase and injected with [3H]thymidine. Popliteal lymph node cells were submitted to electron microscopic immunocytochemistry and high resolution autoadiography in order to correlate antibody production and ability to undergo cell division at various stages of lymphoid cell differentiation. Antibody synthesis started in blast cells and increased steadily until the mature plasma cell stage was reached. Thymidine incorporation was highest in blastoid cells and decreased continuously afterwards. Chromatin dispersion was found to be paralleled by thymidine incorporation. This observation and data of other authors seem to indicate that chromatin dispersion is a prerequisite for replication. Almost all mature plasma cells were devoid of thymidine incorporation. This confirms that they are end cells apparently unable to divide.

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