Induction of tumour hypoxia by a vasoactive agent A combined NMR and radiobiological study
- 5 June 1989
- journal article
- Published by Wiley in FEBS Letters
- Vol. 249 (2) , 343-347
- https://doi.org/10.1016/0014-5793(89)80655-6
Abstract
The effect of hydralazine treatment on 3 murine tumours (RIF-1, KHT and 16/C) was monitored using 31P-NMR. Changes in the 31P-NMR spectrum are compared with measurements of radiobiological hypoxic fraction (RHF) in the RIF-1 and KHT. Hydralazine is known to reduce temporarily blood flow in experimental tumours, and thus cause a transient increase in the RHF to 100% (in RIF-1 and KHT). This correlates with a decline in energy status as measured by 31P-NMR (i.e. there was an increase in Pi in all three tumours). Time-course data from the RIF-1 and KHT tumours show that maintenance of anaesthesia prolongs the hypoxia induced by hydralazineKeywords
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