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Lymphocyten-Stimulation in vitro mit Phytohämagglutinin. Modifikation bei schwerer Lymphopenie

In vitro stimulation of lymphocyte transformation with phytohemagglutinin. Modifications observed in severe lymphopenia

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Summary

Phytohemagglutinin is considered a maximal stimulus for the transformation of lymphocytes. In severely lymphopenic patients, the lymphocytes have been claimed to be non-responsive, i. e. these cells are considered qualitatively deficient.—Systematic study of a severely lymphopenic patient demonstrated that his lymphocytes are normally responsive to the phytohemagglutinin stimulus, provided the greatly disturbed relationship between granulocytes and lymphocytes is restored. Several possible explanations are discussed. It is most probable that during the short-time culture the granulocytes are destroyed, thus releasing their hydrolases into the culture medium and so inhibiting the lymphocytes.

Zusammenfassung

Phytohämagglutinin gilt als maximaler Stimulus zur Einleitung der Transformation von Lymphocyten. Bei schwerer Lymphopenie wurde eine verminderte Stimulierbarkeit der Lymphocyten behauptet, d.h. ein qualitativer Defekt dieser Zellen.

Bei der systematischen Untersuchung eines schwer lymphopenischen Patienten konnte gezeigt werden, daß nach Angleichung der gestörten Relation zwischen Granulocyten und Lymphocyten die letzteren normal auf Phytohämagglutinin ansprechen. Die wahrscheinlichste Erklärung liegt darin, daß die Granulocyten zugrunde gehen und dabei ihre Hydrolasen in das Kulturmedium freigeben; dadurch dürften die Lymphocyten gehemmt werden.

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Arbeit mit Unterstützung des Schweiz. Nationalfonds zur Förderung der wissenschaftlichen Forschung.

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Bodmer, P., Hitzig, W.H. Lymphocyten-Stimulation in vitro mit Phytohämagglutinin. Modifikation bei schwerer Lymphopenie. Klin Wochenschr 49, 611–613 (1971). https://doi.org/10.1007/BF01485337

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  • DOI: https://doi.org/10.1007/BF01485337

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