Synergistic antitumour effect of TNF-SAM2 with melphalan and doxorubicin in isolated limb perfusion in rats

J. H.W. De Wilt, G. I. Soma, T. L.M. Ten Hagen, J. Kanou, K. Takagi, P. T.G.A. Nooijen, A. L.B. Seynhaevel, A. M.M. Eggermont

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Samenvatting

An isolated limb perfusion model (ILP) using soft tissue sarcoma bearing rats (BN175) was used to study antitumour activity of a tumour necrosis factor alpha mutant (TNF-SAM2) in combination with melphalan and doxorubicin. Progressive disease was demonstrated after ILP without agents (sham) or with 50 μg TNF-SAM2. ILP with 40 μg melphalan or 400 μg doxorubicin resulted in no change of tumour volume or progressive disease five days after perfusion. Partial and complete response rates were demonstrated in 76% of rats when the combination of TNF-SAM2 and melphalan was used. TNF-SAM2 in combination with doxorubicin was synergistic as well with a 70% response rate. Histopathologically these responses consisted of hemorrhagic necrosis of the coagulative type. 2 In conclusion, TNF-SAM2 has similar antitumour activity in combination with melphalan or doxorubicin as rHuTNF in sarcoma-bearing rats and is eligible to be tested in clinical ILP or organ perfusion settings because of its potential decreased toxicity.

Originele taal-2Engels
Pagina's (van-tot)3491-3496
Aantal pagina's6
TijdschriftAnticancer Research
Volume20
Nummer van het tijdschrift5 B
StatusGepubliceerd - 2000
Extern gepubliceerdJa

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