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Experimental studies on the effect of induced antifibrinolysis on per-operative tumour cell shedding

Induzierte Antifibrinolyse und intra-operative Aussaat von Tumorzellen

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Summary

Previous experimental data suggested a pronounced inhibition of the spontaneous intravascular tumour cell shedding by induced antifibrinolysis. Furthermore, the growth rate of primary tumours was reduced. This initiated the present investigation, in which the effect of antifibrinolysis, induced with tranexamic acid, on the per-operative intravascular release of cells from a 20-methylcholanthrene induced rat sarcoma was studied. Tumour cell shedding was estimated by registration of the outgrowth of secondary tumours in animals transplanted intramuscularly or intravenously with blood from the operatively treated tumour area. Induced antifibrinoslysis was not found to influence the intravascular shedding of tumour cells. However, a significantly increased release of tumour cells was found during biopsies on large primary tumours compared to the same operative procedure on small tumours.

Zusammenfassung

Frühere experimentelle Ergebnisse haben eine deutliche Hemmung der spontanen intravasculären Aussaat von Tumorzellen durch induzierte Antifibrinolyse gezeigt. Außerdem wurde der Zuwachs von Tumoren reduziert. Diese Ergebnisse stimulierten die hier beschriebenen Versuche. Es wurde die Wirkung von Antifibrinolyse, induziert mit Tranexamsäure, auf die intra-operative intravasculäre Aussaat von Zellen eines 20-Methylcholantren induzierten Rattensarkoms studiert. Die Aussaat von Tumorzellen wurde an Hand des Zuwachses von sekundären Tumoren in Ratten gemessen, die Blut aus der Region operierter Tumoren intramusculär oder intravenös erhalten hatten. Induzierte Antifibrinolyse beeinflußte nicht die intravasculäre Aussaat von Tumorzellen. Die Aussaat von Tumorzellen war nach Biopsien von großen Tumoren größer als nach Biopsien von kleinen Tumoren.

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Peterson, H.I., Risberg, B. Experimental studies on the effect of induced antifibrinolysis on per-operative tumour cell shedding. Z. Krebsforsch. 86, 121–125 (1976). https://doi.org/10.1007/BF00283999

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  • DOI: https://doi.org/10.1007/BF00283999

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