A Quick Responsive Fluorogenic pH Probe for Ovarian Tumor Imaging.

TitleA Quick Responsive Fluorogenic pH Probe for Ovarian Tumor Imaging.
Publication TypeJournal Article
Year of Publication2015
AuthorsTung C-H, Qi J, Hu L, Han MShin, Kim Y
JournalTheranostics
Volume5
Issue10
Pagination1166-74
Date Published2015
ISSN1838-7640
KeywordsAnimals, Cell Line, Tumor, Female, Fluorescence, Humans, Mice, Mice, Inbred BALB C, Mice, Nude, Microscopy, Fluorescence, Molecular Imaging, Molecular Probes, Ovarian Neoplasms
Abstract

A novel cell-permeable compound, CypH-1, that is non-fluorescent at neutral pH, but fluoresces under mildly acidic conditions with a near infrared maximum emission wavelength was designed for the detection of tumors in the clinical setting. The potential of CypH-1 in ovarian cancer imaging was demonstrated using a murine model. The intraperitoneally administered CypH-1 results in a robust fluorescence signal of discrete neoplastic lesions with millimeter range resolution within few hours. Moreover, fluorescence signal is strikingly enhanced at peripheral regions of tumors at the microscopic level suggesting a sharp physiological difference at the tumor/normal tissue interface. This robust acid-activated imaging agent is expected to have significant impact in broad surgical and diagnostic applications.

DOI10.7150/thno.12813
Alternate JournalTheranostics
PubMed ID26284146
PubMed Central IDPMC4533099
Grant ListCA135312 / CA / NCI NIH HHS / United States
GM094880 / GM / NIGMS NIH HHS / United States
Related Institute: 
Molecular Imaging Innovations Institute (MI3)

Weill Cornell Medicine
Department of Radiology
525 East 68th Street New York, NY 10065