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17 O MRS assesses the effect of mild hypothermia on oxygen consumption rate in tumors.
- Source :
-
NMR in biomedicine [NMR Biomed] 2017 Aug; Vol. 30 (8). Date of Electronic Publication: 2017 Apr 21. - Publication Year :
- 2017
-
Abstract
- Although oxygen consumption is a key factor in metabolic phenotyping, its assessment in tumors remains critical, as current technologies generally display poor specificity. The objectives of this study were to explore the feasibility of direct <superscript>17</superscript> O nuclear magnetic resonance (NMR) spectroscopy to assess oxygen metabolism in tumors and its modulations. To investigate the impact of hypometabolism induction in the murine fibrosarcoma FSAII tumor model, we monitored the oxygen consumption of normothermic (37°C) and hypothermic (32°C) tumor-bearing mice. Hypothermic animals showed an increase in tumor pO <subscript>2</subscript> (measured by electron paramagnetic resonance oximetry) contrary to normothermic animals. This was related to a decrease in oxygen consumption rate (assessed using <superscript>17</superscript> O magnetic resonance spectroscopy (MRS) after the inhalation of <superscript>17</superscript> O <subscript>2</subscript> -enriched gas). This study highlights the ability of direct <superscript>17</superscript> O MRS to measure oxygen metabolism in tumors and modulations of tumor oxygen consumption rate.<br /> (Copyright © 2017 John Wiley & Sons, Ltd.)
Details
- Language :
- English
- ISSN :
- 1099-1492
- Volume :
- 30
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- NMR in biomedicine
- Publication Type :
- Academic Journal
- Accession number :
- 28430379
- Full Text :
- https://doi.org/10.1002/nbm.3726