Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI
Тип публикации: Journal Article
Дата публикации: 2021-07-29
scimago Q1
wos Q1
БС1
SJR: 1.921
CiteScore: 14.5
Impact factor: 8.2
ISSN: 19448244, 19448252
PubMed ID:
34324807
General Materials Science
Краткое описание
Magnetic Fe3O4 nanoparticles (MNPs) are often used to design agents enhancing contrast in magnetic resonance imaging (MRI) that can be considered as one of the efficient methods for cancer diagnostics. At present, increasing the specificity of the MRI contrast agent accumulation in tumor tissues remains an open question and attracts the attention of a wide range of researchers. One of the modern methods for enhancing the efficiency of contrast agents is the use of molecules for tumor acidic microenvironment targeting, for example, pH-low insertion peptide (pHLIP). We designed novel organosilicon MNPs covered with poly(ethylene glycol) (PEG) and covalently modified by pHLIP. To study the specific features of the binding of pHLIP-modified MNPs to cells, we also obtained nanoconjugates with Cy5 fluorescent dye embedded in the SiO2 shell. The nanoconjugates obtained were characterized by transmission electron microscopy (TEM), attenuated total reflection (ATR), diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), dynamic light scattering (DLS), UV and fluorescence spectrometry, thermogravimetric analysis (TGA), CHN elemental analyses, and vibrating sample magnetometry. Low cytotoxicity and high specificity of cellular uptake of pHLIP-modified MNPs at pH 6.4 versus 7.4 (up to 23-fold) were demonstrated in vitro. The dynamics of the nanoconjugate accumulation in the 4T1 breast cancer orthotopically grown in BALB/c mice and MDA-MB231 xenografts was evaluated in MRI experiments. Biodistribution and biocompatibility studies of the obtained nanoconjugate showed no pathological change in organs and in the blood biochemical parameters of mice after MNP administration. A high accumulation rate of pHLIP-modified MNPs in tumor compared with PEGylated MNPs after their intravenous administration was demonstrated. Thus, we propose a promising approach to design an MRI agent with the tumor acidic microenvironment targeting ability.
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Demin A. V. et al. Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI // ACS applied materials & interfaces. 2021. Vol. 13. No. 31. pp. 36800-36815.
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Demin A. V., Pershina A. G., Minin A., Brikunova O. Ya., Murzakaev A. M., Perekucha N. A., Romashchenko A. V., Shevelev O. B., Uimin M., Byzov I. V., Malkeyeva D., Kiseleva E., Efimova L. V., Vtorushin S. V., Ogorodova L. M., Krasnov V. P. Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI // ACS applied materials & interfaces. 2021. Vol. 13. No. 31. pp. 36800-36815.
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TY - JOUR
DO - 10.1021/acsami.1c07748
UR - https://doi.org/10.1021/acsami.1c07748
TI - Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI
T2 - ACS applied materials & interfaces
AU - Demin, Alexander V.
AU - Pershina, Alexandra G.
AU - Minin, A.S.
AU - Brikunova, Olga Ya
AU - Murzakaev, Aidar M
AU - Perekucha, Natalya A
AU - Romashchenko, Alexander V
AU - Shevelev, Oleg B
AU - Uimin, M.A.
AU - Byzov, Iliya V
AU - Malkeyeva, Dina
AU - Kiseleva, Elena
AU - Efimova, Lina V
AU - Vtorushin, Sergey V.
AU - Ogorodova, Ludmila M
AU - Krasnov, Victor P.
PY - 2021
DA - 2021/07/29
PB - American Chemical Society (ACS)
SP - 36800-36815
IS - 31
VL - 13
PMID - 34324807
SN - 1944-8244
SN - 1944-8252
ER -
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@article{2021_Demin,
author = {Alexander V. Demin and Alexandra G. Pershina and A.S. Minin and Olga Ya Brikunova and Aidar M Murzakaev and Natalya A Perekucha and Alexander V Romashchenko and Oleg B Shevelev and M.A. Uimin and Iliya V Byzov and Dina Malkeyeva and Elena Kiseleva and Lina V Efimova and Sergey V. Vtorushin and Ludmila M Ogorodova and Victor P. Krasnov},
title = {Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI},
journal = {ACS applied materials & interfaces},
year = {2021},
volume = {13},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021/acsami.1c07748},
number = {31},
pages = {36800--36815},
doi = {10.1021/acsami.1c07748}
}
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Demin, Alexander V., et al. “Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI.” ACS applied materials & interfaces, vol. 13, no. 31, Jul. 2021, pp. 36800-36815. https://doi.org/10.1021/acsami.1c07748.
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