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Hyperthermia and chemotherapy of solid tumors

Thermo-Chemotherapie solider Tumoren—Eine experimentelle Doppelblindstudie an transplantierten 5123-Morris-Hepatomen

An experimental doubleblind trial on transplanted 5123-Morris Hepatomas

  • Main Topics: Hyperthermia in Clinical Oncology
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Abstract

We investigated the influence of hyperthermia (HT) on the cytotoxic effect of doxorubicin (DX, Adriamycin) in 5123-Morris Hepatomas (M.H.) transplanted into both thies of SPF-Buffalo rats. HT was performed with the MA-151 applicator of the BSD 1000 Hyperthermia-System (BSD Med. Corp., Salt Lake City, USA). We selected 2 groups of animals: Group I: right tumor no therapy, left tumor HT alone. Group II: right tumor DX alone, left tumor DX with HT. DX was applied systemically in group II exactly 20 minutes before HT. The synergistic effect of HT and DX to the tumor necrosis of M.H. was significant and proven by light microscopy and immunofluorescense.

Zusammenfassung

Wir untersuchten den Einfluß der Hyperthermie (HT) auf die zytotoxische Aktivität von Doxorubicin (DX, Adriamycin) auf 5123-Morris-Hepatome, die in beide Oberschenkel von SPF-Buffalo-Ratten transplantiert wurden. Die Hyperthermie wurde mittels des MA-151-Applikators des BSD 1000 Hyperthermiesystems (BSD Medical Corp., Salt Lake City, USA) an die Tumoren verabreicht. Es wurden 2 Gruppen von Versuchstieren im Rahmen einer Doppllblindstudie selektiert: Gruppe I: rechter Tumor keine Therapie, linker Tumor nur Hyperthermie; Gruppe II: rechter Tumor DX, linker Tumor DX mit Hyperthermie. DX wurde in der Gruppe II systemisch 20 Minuten vor Beginn der Hyperthermie verabreicht. Des synergistische Effekt der HT mit dem DX, bezogen auf die Tumornekroserate des transplantierten Morris-Hepatoms, war signifikant und wurde durch histologische Untersuchung sowohl lichtoptisch als auch durch. Immunfluoreszenz nachgewiesen.

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Dedicated to Prof. Dr.Leo Kronberger on occasion of his 65th anniversary.

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Steindorfer, P.F., Germann, R.H., Denk, H. et al. Hyperthermia and chemotherapy of solid tumors. Acta Chir Austriaca 24, 202–204 (1992). https://doi.org/10.1007/BF02601741

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  • DOI: https://doi.org/10.1007/BF02601741

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