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Size transformable organic nanotheranostic agents for NIR-II imaging-guided oncotherapy

Su, Peng, Sun, Wenjun, Wang, Guoqin, Xu, Hongpan, Bao, Biqing, Wang, Lianhui·2024·Journal of Colloid and Interface Science
DOI 10.1016/j.jcis.2023.10.038
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Abstract

Nanotheranostic agents combined the second near-infrared (NIR-II, 1000-1700 nm) fluorescence imaging with phototherapy strategy have attracted tremendous interest. However, the actual efficacy of NIR-II probes could be weakened by their limited accumulation and penetration in tumor tissues. Herein, a size-transformable NIR-II nanotheranostic agent (BBT-HASS@FPMPL NPs) is employed for simultaneously enhanced penetration and retention in deep tumor tissue to realize precise image and effective PTT therapy. BBT-HASS@FPMPL NPs were first formed by using hyaluronic acid (HA) chains and disulfide bonds as stimuli-responsive "lock" to efficiently load conjugated oligomer (BBTN + ), and then folic acid (FA) modified polylysine (FPMPL) shell was stacked at the surface by electrostatic interaction. Dual targeting with HA and FA is expected to lead to more selective targeting and better accumulation of BBT-HASS@FPMPL NPs in tumor sites. Simultaneously, obvious particle size reduction and charge reversal can be triggered in acidic tumor microenvironment to achieve deep intratumor filtration through transcytosis. Following tumor penetration, size change was further initiated by overexpressed hyaluronidase and GSH in tumor. Free BBTN + can be subsequently released from nanoparticles to promote specific intratumor retention, which synergistically enhance photothermal therapeutic efficacy. Owing to sufficient tumor accumulation and deep penetration, the NIR-II emission of BBTN + could furthe…

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Metadata

Authors
Su, P., Sun, W., Wang, G., Xu, H., Bao, B., & Wang, L.
Venue
Journal of Colloid and Interface Science
Publisher
Elsevier BV
Published
2024-01
Volume
654
Pages
740-752
ISSN
0021-9797
DOI
10.1016/j.jcis.2023.10.038
Cited by
6
References
2
Language
en
Licence
Funders
National Natural Science Foundation of China (62235008, 62288102)

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CoChat. (2026). Citation check: Size transformable organic nanotheranostic agents for NIR-II imaging-guided oncotherapy. https://app.cochat.ai/papers/10.1016/j.jcis.2023.10.038
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Su, P., Sun, W., Wang, G., Xu, H., Bao, B., & Wang, L. (2024). Size transformable organic nanotheranostic agents for NIR-II imaging-guided oncotherapy. Journal of Colloid and Interface Science. https://doi.org/10.1016/j.jcis.2023.10.038