Miniature NIR-II Nanoprobes for Active-Targeted Phototheranostics of Brain Tumors

Wu，Yayun1; Hu，Dehong1; Gao，Duyang1; Liu，Chunchen2; Zheng，Hairong1; Sheng，Zonghai1

2022

10.1002/adhm.202202379

Advanced Healthcare Materials   Impact Factor & Quartile

2192-2640

2192-2659

Nanoprobes (NPs) in the second near-infrared biowindow (NIR-II, 1000–1700 nm) are developed and widely used in cancer phototheranostics. However, most NIR-II NPs exhibit low phototheranostic efficiency due to their tedious synthetic routes, large particle sizes (>20 nm), and lack of active targeting properties. Here, miniature NIR-II NPs, named HSA-ICG-iRGD, for active-targeted NIR-II phototheranostics of brain tumors are reported. The HSA-ICG-iRGD probes are designed based on hydrophobic interactions as well as hydrogen bonds between albumin and indocyanine green derivatives (ICG-iRGD) via molecular docking. The as-prepared NPs have a compact size of 10 nm and show tumor-targeting ability by specifically binding to αβ integrin receptors which are highly expressed on the surface of brain tumor cells via iRGD peptides. The HSA-ICG-iRGD NPs are then applied to perform active-targeted NIR-II fluorescence imaging, resulting in a signal-to-background ratio of 6.85 in orthotopic glioma mouse models. Under the selected laser irradiation of 808 nm, the photothermal effect of HSA-ICG-iRGD extends the survival of the tumor-bearing mice to 55 days, significantly longer than that of the control group (30 days). These results highlight the potential of miniature NPs for active-targeted NIR-II fluorescence imaging and phototherapy of brain tumors.

brain tumors indocyanine green NIR-II fluorescence photothermal therapy theranostics

SCI

English

Others

WOS:000879602300001

2-s2.0-85141489540

Scopus

1.Paul C. Lauterbur Research Center for Biomedical Imaging,Key Laboratory for Magnetic Resonance and Multimodality Imaging of Guangdong Province,Shenzhen Key Laboratory of Ultrasound Imaging and Therapy,CAS key laboratory of health informatics,Institute of Biomedical and Health Engineering,Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen,518055,China
2.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Printed Organic Electronics,Southern University of Science and Technology,Shenzhen,518055,China

Wu，Yayun,Hu，Dehong,Gao，Duyang,et al. Miniature NIR-II Nanoprobes for Active-Targeted Phototheranostics of Brain Tumors[J]. Advanced Healthcare Materials,2022.

Wu，Yayun,Hu，Dehong,Gao，Duyang,Liu，Chunchen,Zheng，Hairong,&Sheng，Zonghai.(2022).Miniature NIR-II Nanoprobes for Active-Targeted Phototheranostics of Brain Tumors.Advanced Healthcare Materials.

Wu，Yayun,et al."Miniature NIR-II Nanoprobes for Active-Targeted Phototheranostics of Brain Tumors".Advanced Healthcare Materials (2022).