Mohammadi M, Khademi S, Choghazardi Y, Irajirad R, Keshtkar M, Montazerabadi A. Modified Bismuth Nanoparticles: A New Targeted Nanoprobe for Computed Tomography Imaging of Cancer.
CELL JOURNAL 2022;
24:515-521. [PMID:
36274204 PMCID:
PMC9588159 DOI:
10.22074/cellj.2022.8348]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE
Recently, development of multifunctional contrast agent for effective targeted molecular computed tomography (CT) imaging of cancer cells stays a major problem. In this study, we explain the ability of Triptorelin peptide-targeted multifunctional bismuth nanoparticles (Bi2S3@ BSA-Triptorelin NPs) for molecular CT imaging.
MATERIALS AND METHODS
In this experimental study, the formed nanocomplex of Bi2S3@ BSA-Triptorelin NPs was characterized using different methods. The MTT cytotoxicity test was performed to determine the appropriate concentration of nanoparticles in the MCF-7 cells. The X-ray attenuation intensity and Contrast to Noise Ratio (CNR) of targeted and non-targeted nanoparticles were measured at the concentrations of 25, 50, and 75 μg/ml and X-ray tube voltages of 90, 120 and 140 kVp.
RESULTS
We showed that the formed Bi2S3@ BSA-Triptorelin NPs with a Bi core size of approximately ~8.6 nm are nontoxic in a given concentration (0-200 μg/ml). At 90, 120, and 140 tube potentials (kVp), the X-ray attenuation of targeted cells were 1.35, 1.36, and 1.33-times, respectively, more than non-targeted MCF-7cells at the concentration of 75 μg/ml. The CNR values at 90, 120, and 140 kVp tube potentials were 171.5, 153.8 and 146.3 c/ϭ, respectively.
CONCLUSION
These findings propose that the diagnostic nanocomplex of Bi2S3@ BSA-Triptorelin NPs can be applied as a good contrast medium for molecular CT techniques.
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