Study of the metabolism of choline and phosphatidylcholine in tumors in vivo using phosphonium-choline Academic Article Article uri icon


MeSH Major

  • Magnetic Resonance Imaging
  • Neoplasms


  • The results of an initial study on the feasibility of using the phosphonium analog of choline to follow the metabolism of phosphatidylcholine in tumors in vivo using 31P NMR are reported. C3H/He mice bearing a mammary carcinoma tumor on the foot pad were fed a choline-free diet supplemented with the phosphonium analog of choline. Metabolites of this compound, including the phosphonium analogs of phosphatidylcholine, phosphocholine, glycerophosphocholine, and betaine were observed noninvasively in vivo in tumors by 31P NMR after 2-3 weeks of feeding. Clearance of these phosphonium-labeled metabolites from tumors was measured after a change to a choline-containing diet. Significant decreases were seen in the levels of the analogs of betaine (P < 0.003) and phosphatidylcholine (P < 0.004) by Day 4. A significant increase in the level of authentic phosphocholine (P < 0.003) occurred over the same time period.

publication date

  • November 1997



  • Academic Article


Digital Object Identifier (DOI)

  • 10.1002/mrm.1910380513

PubMed ID

  • 9358451

Additional Document Info

start page

  • 769

end page

  • 75


  • 38


  • 5