Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death

Abstract Background Tumor phototherapy especially photodynamic therapy (PDT) or photothermal therapy (PTT), has been considered as an attractive strategy to elicit significant immunogenic cell death (ICD) at an optimal tumor retention of PDT/PTT agents. Heptamethine cyanine dye (IR-780), a promising...

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Autores principales: Ying Tian, Muhammad Rizwan Younis, Yuxia Tang, Xiang Liao, Gang He, Shouju Wang, Zhaogang Teng, Peng Huang, Longjiang Zhang, Guangming Lu
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Publicado: BMC 2021
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spelling oai:doaj.org-article:a8cb5718fee647ec96683a2b7bb2120a2021-11-21T12:29:25ZDye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death10.1186/s12951-021-01109-71477-3155https://doaj.org/article/a8cb5718fee647ec96683a2b7bb2120a2021-11-01T00:00:00Zhttps://doi.org/10.1186/s12951-021-01109-7https://doaj.org/toc/1477-3155Abstract Background Tumor phototherapy especially photodynamic therapy (PDT) or photothermal therapy (PTT), has been considered as an attractive strategy to elicit significant immunogenic cell death (ICD) at an optimal tumor retention of PDT/PTT agents. Heptamethine cyanine dye (IR-780), a promising PDT/PTT agent, which can be used for near-infrared (NIR) fluorescence/photoacoustic (PA) imaging guided tumor phototherapy, however, the strong hydrophobicity, short circulation time, and potential toxicity in vivo hinder its biomedical applications. To address this challenge, we developed mesoporous polydopamine nanoparticles (MPDA) with excellent biocompatibility, PTT efficacy, and PA imaging ability, facilitating an efficient loading and protection of hydrophobic IR-780. Results The IR-780 loaded MPDA (IR-780@MPDA) exhibited high loading capacity of IR-780 (49.7 wt%), good physiological solubility and stability, and reduced toxicity. In vivo NIR fluorescence and PA imaging revealed high tumor accumulation of IR-780@MPDA. Furthermore, the combined PDT/PTT of IR-780@MPDA could induce ICD, triggered immunotherapeutic response to breast tumor by the activation of cytotoxic T cells, resulting in significant suppression of tumor growth in vivo. Conclusion This study demonstrated that the as-developed compact and biocompatible platform could induce combined PDT/PTT and accelerate immune activation via excellent tumor accumulation ability, offering multimodal tumor theranostics with negligible systemic toxicity. Graphical AbstractYing TianMuhammad Rizwan YounisYuxia TangXiang LiaoGang HeShouju WangZhaogang TengPeng HuangLongjiang ZhangGuangming LuBMCarticleMesoporous polydopamine nanoparticlesIR-780Photodynamic therapyPhotothermal therapyImmunogenic cell deathBiotechnologyTP248.13-248.65Medical technologyR855-855.5ENJournal of Nanobiotechnology, Vol 19, Iss 1, Pp 1-16 (2021)
institution DOAJ
collection DOAJ
language EN
topic Mesoporous polydopamine nanoparticles
IR-780
Photodynamic therapy
Photothermal therapy
Immunogenic cell death
Biotechnology
TP248.13-248.65
Medical technology
R855-855.5
spellingShingle Mesoporous polydopamine nanoparticles
IR-780
Photodynamic therapy
Photothermal therapy
Immunogenic cell death
Biotechnology
TP248.13-248.65
Medical technology
R855-855.5
Ying Tian
Muhammad Rizwan Younis
Yuxia Tang
Xiang Liao
Gang He
Shouju Wang
Zhaogang Teng
Peng Huang
Longjiang Zhang
Guangming Lu
Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
description Abstract Background Tumor phototherapy especially photodynamic therapy (PDT) or photothermal therapy (PTT), has been considered as an attractive strategy to elicit significant immunogenic cell death (ICD) at an optimal tumor retention of PDT/PTT agents. Heptamethine cyanine dye (IR-780), a promising PDT/PTT agent, which can be used for near-infrared (NIR) fluorescence/photoacoustic (PA) imaging guided tumor phototherapy, however, the strong hydrophobicity, short circulation time, and potential toxicity in vivo hinder its biomedical applications. To address this challenge, we developed mesoporous polydopamine nanoparticles (MPDA) with excellent biocompatibility, PTT efficacy, and PA imaging ability, facilitating an efficient loading and protection of hydrophobic IR-780. Results The IR-780 loaded MPDA (IR-780@MPDA) exhibited high loading capacity of IR-780 (49.7 wt%), good physiological solubility and stability, and reduced toxicity. In vivo NIR fluorescence and PA imaging revealed high tumor accumulation of IR-780@MPDA. Furthermore, the combined PDT/PTT of IR-780@MPDA could induce ICD, triggered immunotherapeutic response to breast tumor by the activation of cytotoxic T cells, resulting in significant suppression of tumor growth in vivo. Conclusion This study demonstrated that the as-developed compact and biocompatible platform could induce combined PDT/PTT and accelerate immune activation via excellent tumor accumulation ability, offering multimodal tumor theranostics with negligible systemic toxicity. Graphical Abstract
format article
author Ying Tian
Muhammad Rizwan Younis
Yuxia Tang
Xiang Liao
Gang He
Shouju Wang
Zhaogang Teng
Peng Huang
Longjiang Zhang
Guangming Lu
author_facet Ying Tian
Muhammad Rizwan Younis
Yuxia Tang
Xiang Liao
Gang He
Shouju Wang
Zhaogang Teng
Peng Huang
Longjiang Zhang
Guangming Lu
author_sort Ying Tian
title Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
title_short Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
title_full Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
title_fullStr Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
title_full_unstemmed Dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
title_sort dye-loaded mesoporous polydopamine nanoparticles for multimodal tumor theranostics with enhanced immunogenic cell death
publisher BMC
publishDate 2021
url https://doaj.org/article/a8cb5718fee647ec96683a2b7bb2120a
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