TY - JOUR
T1 - A polydopamine-coated LAPONITE®-stabilized iron oxide nanoplatform for targeted multimodal imaging-guided photothermal cancer therapy
AU - Liu, Mengxue
AU - Zhang, Jiulong
AU - Li, Xin
AU - Cai, Chao
AU - Cao, Xueyan
AU - Shi, Xiangyang
AU - Guo, Rui
N1 - Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019/6/28
Y1 - 2019/6/28
N2 - The development of theranostic nanoplatforms with accurate diagnosis and effective therapy performance is crucial for precision medicine applications. Herein, we developed a novel targeted theranostic nanoplatform for magnetic resonance (MR) and photoacoustic (PA) imaging-guided photothermal therapy of cancer cells overexpressing sialic acid (SA). Firstly, LAPONITE® (LAP)-stabilized Fe3O4 nanoparticles (NPs) with a high r2 relaxivity were synthesized by a coprecipitation method, and then polydopamine (PDA) was coated to improve the photothermal effect and PA contrast effect, followed by the modification of PEGylated phenylboronic acid (PEG-PBA) to introduce tumor-targeting specificity into SA-overexpressed cancer cells. The formed LAP-Fe3O4@PDA-PEG-PBA NPs show excellent biocompatibility and photothermal conversion efficiency under near-infrared laser irradiation and are able to be used for dual modal MR/PA imaging of a xenografted tumor model and induce complete eradication of tumors after NIR laser treatment. In summary, LAP-Fe3O4@PDA-PEG-PBA NPs could be theranostic nanoplatforms for sensitive MR/PA imaging and effective photothermal therapy of SA-overexpressed tumors.
© The Royal Society of Chemistry 2019
AB - The development of theranostic nanoplatforms with accurate diagnosis and effective therapy performance is crucial for precision medicine applications. Herein, we developed a novel targeted theranostic nanoplatform for magnetic resonance (MR) and photoacoustic (PA) imaging-guided photothermal therapy of cancer cells overexpressing sialic acid (SA). Firstly, LAPONITE® (LAP)-stabilized Fe3O4 nanoparticles (NPs) with a high r2 relaxivity were synthesized by a coprecipitation method, and then polydopamine (PDA) was coated to improve the photothermal effect and PA contrast effect, followed by the modification of PEGylated phenylboronic acid (PEG-PBA) to introduce tumor-targeting specificity into SA-overexpressed cancer cells. The formed LAP-Fe3O4@PDA-PEG-PBA NPs show excellent biocompatibility and photothermal conversion efficiency under near-infrared laser irradiation and are able to be used for dual modal MR/PA imaging of a xenografted tumor model and induce complete eradication of tumors after NIR laser treatment. In summary, LAP-Fe3O4@PDA-PEG-PBA NPs could be theranostic nanoplatforms for sensitive MR/PA imaging and effective photothermal therapy of SA-overexpressed tumors.
© The Royal Society of Chemistry 2019
UR - https://www.scopus.com/pages/publications/85067613506
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85067613506&origin=recordpage
U2 - 10.1039/c9tb00398c
DO - 10.1039/c9tb00398c
M3 - RGC 21 - Publication in refereed journal
C2 - 33629981
AN - SCOPUS:85067613506
SN - 2050-750X
VL - 7
SP - 3856
EP - 3864
JO - Journal of Materials Chemistry B
JF - Journal of Materials Chemistry B
IS - 24
ER -