[(18)F]Fluoro-DCP, a first generation PET radiotracer for monitoring protein sulfenylation in vivo

Redox metabolism plays essential functions in the pathology of cancer and many other diseases. While several radiotracers for imaging redox metabolism have been developed, there are no reports of radiotracers for in vivo imaging of protein oxidation. Here we take the first step towards this goal and...

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Detalles Bibliográficos
Autores principales: Solingapuram Sai, Kiran Kumar, Chen, Xiaofei, Li, Zhe, Zhu, Caigang, Shukla, Kirtikar, Forshaw, Tom E., Wu, Hanzhi, Vance, Stephen A., Pathirannahel, Buddhika Liyana, Madonna, Megan, Dewhirst, Mark W., Tsang, Allen W., Poole, Leslie B., Ramanujam, Nimmi, King, S. Bruce, Furdui, Cristina M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8715125/
https://www.ncbi.nlm.nih.gov/pubmed/34952463
http://dx.doi.org/10.1016/j.redox.2021.102218
Descripción
Sumario:Redox metabolism plays essential functions in the pathology of cancer and many other diseases. While several radiotracers for imaging redox metabolism have been developed, there are no reports of radiotracers for in vivo imaging of protein oxidation. Here we take the first step towards this goal and describe the synthesis and kinetic properties of a new positron emission tomography (PET) [(18)F]Fluoro-DCP radiotracer for in vivo imaging of protein sulfenylation. Time course biodistribution and PET/CT studies using xenograft animal models of Head and Neck Squamous Cell Cancer (HNSCC) demonstrate its capability to distinguish between tumors with radiation sensitive and resistant phenotypes consistent with previous reports of decreased protein sulfenylation in clinical specimens of radiation resistant HNSCC. We envision further development of this technology to aid research efforts towards improving diagnosis of patients with radiation resistant tumors.

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