Porphyrin–Iron Oxide Nanoparticle Functionalized With Trastuzumab (Ion–Pp–Tz) Potential Mr Imaging Probe for Breast Cancer Cells Publisher

Summary: Research shows a new nanoparticle probe detects breast cancer cells effectively in mice, aiding diagnosis. #CancerResearch #Nanotechnology

Eivazi M¹ ; Khaniabadi PM^{2, 3} ; Hejazi SH⁴ ; Shahbazigahrouei D¹
Source: Applied Physics A: Materials Science and Processing Published:2022

Abstract

In this study, iron oxide nanoparticles coated with porphyrin and functionalized with trastuzumab (ION–PP–TZ) were applied as a new potential probe for magnetic resonance imaging to detect breast cancer cells. This synthesized nanoprobe was applied to breast cancer (MCF-7) cells under both ex vivo and in vivo conditions. The synthesized nanoprobe was administered by systemic injection into C57BL/6 mice. Then, cytotoxicity, T2 relaxation time, image signal intensity, and biodistribution of nanoprobe measurement are performed. At 12 h after injection, it is found that the non-toxic ION–PP–TZ had reduced (83%) T2 relaxation times. After 8 h, the signal intensity of mice treated with ION–PP–TZ was lowered by 67% when compared to the control sample. Moreover, ex vivo results of mice organs at 12 h after treatment had a larger concentration of a specific nanoprobe in tumors of mice killed eight hours after injection. Iron accumulation in the tumor side in a specific group was higher than those of other organs. The developed nanoprobe showed significant MR contrast agent ability on MCF-7 in vivo and ex vivo under different conditions. As a result, ION–PP–TZ has the potential as an MR imaging probe for breast cancer (MCF-7) cell detection. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.