Synthesis of (4-18FFluorophenyl)triphenylphosphonium as a Mitochondrial Voltage Sensor for PET / 핵의학분자영상
Nuclear Medicine and Molecular Imaging
;
: 561-565, 2007.
Article
in Korean
| WPRIM
| ID: wpr-44655
ABSTRACT
PURPOSE:
Lipophilic cations including tetraphenylphosphonium (TPP) salts penetrate the hydrophobic barriers of the plasma and mitochondrial membranes, resulting in accumulation in mitochondria in response to the negative inner transmembrane potentials. The development of radiolabeled phosphonium cations as a noninvasive imaging agent may serve as a new molecular "voltage sensor" probe to investigate the role of mitochondria in the pathophysiology and diagnosis of cancer. MATERIALS ANDMETHODS:
We have synthesized a reference compound (4-fluorophenyl)triphenylphosphonium (TPP) and a labeled compound [18F]TPP via two step nucleophilic substitution of no-carrier-added [18F]fluoride with the precursor, 4-iodophenyltrimethylammonium iodide, in the presence of Kryptofix-2.2.2 and K2CO3.RESULT:
The reference compound (4-fluorophenyl)triphenylphosphonium (TPP) was synthesized in 60% yield. The radiolabeled compound [18F]TPP was synthesized in 10~15% yield. The radiochemical purity of the [18F]TPP was 95.57+/-0.51% (n=11).CONCLUSION:
[18F]TPP was successfully synthesized that might have a potential to be utilized as a novel myocardial or cancer imaging agent for PET. However, it is required to improve the radiochemical yield to apply [18F]TPP in preclinical or clinical researches.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Plasma
/
Salts
/
Cations
/
Diagnosis
/
Mitochondrial Membranes
/
Membrane Potential, Mitochondrial
/
Membrane Potentials
/
Mitochondria
Type of study:
Diagnostic study
Language:
Korean
Journal:
Nuclear Medicine and Molecular Imaging
Year:
2007
Type:
Article
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