Assessing a Shift of Glucose Biotransformation by LC-MS/MS-based Metabolome Analysis in Carbon Monoxide-Exposed Cells

  • Naoharu Takano
  • Takehiro Yamamoto
  • Takeshi Adachi
  • Makoto Suematsu
Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 662)


Carbon monoxide (CO) is the stress-inducible gas generated by heme oxygenase (HO). Although the HO/CO system appears to contribute to cell protection and tissue repair under stress conditions, its mode of actions remains largely unknown. We hypothesized that CO might alter the cellular energetic conditions and thereby modulate oxygen metabolism. To examine this hypothesis, we attempted to establish a method to follow the global flux of 13C-glucose in the cells using metabolomic approaches with liquid chromatography-mass spectrometry (LC-MS/MS). The human monoblastic leukemia cell line U937 was exposed to the CO-releasing molecule (CORM). The CO exposure attenuated the conversion of the mass-labeled glucose to its downstream metabolites, while significantly stimulating its conversion to those for pentose phosphate pathway, suggesting roles of stress-inducible CO in a shift of glucose biotransformation.


U937 Cell Pentose Phosphate Pathway Heme Oxygenase Varied Stress Condition Global Flux 
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This study is supported in part by Grant-in-Aid for Creative Scientific Research from MEXT, Grant-in-Aid for Young Scientists (B) from MEXT, Health and Labor Science Research Grant on Advanced Medical Technology from MHLW, and Scientific Frontier Research Grant from MEXT.


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Naoharu Takano
    • 1
  • Takehiro Yamamoto
    • 1
  • Takeshi Adachi
    • 2
  • Makoto Suematsu
    • 2
  1. 1.Department of Biochemistry & Integrative Medical BiologySchool of Medicine, Keio UniversityTokyoJapan
  2. 2.Department of Biochemistry & Integrative Medical BiologySchool of Medicine, Keio UniversityTokyoJapan

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