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Influence of antiblastic agents applied either in vivo or in vitro on human lymphocyte transformation in cell culture

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Summary

The present experiments show that antimitotic agents commonly used in the treatment of neoplastic disorders do not behave uniformly with respect to the action on the blastic transformation of lymphocytes. Furthermore, their action differs according to the experimental procedure, namely whether they are administeredin vivo or added directly to the biological systemin vitro. It can be observed however, that a close relationship exists in thein vitro experiment between the inhibition of the blastic transformation and the antiproliferative effect, as measured by the inhibition of the uptake of tritiated thymidine. It is legitimate to believe that such agents are endowed with different degrees of immunological activity, which may be restrained or elicited according to the circumstances. Such effect should therefore be kept in mind, whenever these agents are given for a clinical treatment.

Zusammenfassung

Die vorliegenden Experimente zeigen, daß die üblicherweise bei der Behandlung neoplastischer Störungen verwendeten antimitotischen Agentien sich in Bezug auf die Wirkung auf die Blastentransformation der Lymphyzoten nicht einheitlich verhalten. Weiterhin unterscheidet sich ihre Wirkung je nach dem experimentellen Verfahren, nämlich ob sie in vivo gegeben oder dem biologischen System direkt in vitro zugesetzt werden. Man kann aber beobachten, daß bei dem In-vitro-Experiment eine enge Beziehung besteht zwischen der Hemmung der Blastentransformation und der antiproliferativen Wirkung, gemessen an der Hemmung der Aufnahme von3H-Thymidin. Man kann mit Recht annehmen, daß derartigen Agentien verschiedene Grade von immunologischer Aktivität innewohnen, die je nach den Umständen zurückgedrängt oder hervorgerufen werden. Man sollte daher an eine derartige Wirkung immer dann denken, wenn derartige Substanzen für die klinische Behandlung verwendet werden.

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Supported by “The Blood Research Foundation”, Washington D.C./USA.

Report at the Sixth Meeting of theTissue and Organ Study Groupof the Coordinating Committee for Human Tumour Investigations. Amsterdam, Holland: May 6th, 1968.

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Astaldi, G., Eridani, S., Ponti, G.B. et al. Influence of antiblastic agents applied either in vivo or in vitro on human lymphocyte transformation in cell culture. Blut 19, 8–16 (1969). https://doi.org/10.1007/BF01632969

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  • DOI: https://doi.org/10.1007/BF01632969

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