A pH-sensitive nanoagent self-assembled from a highly negative-charged phthalocyanine with excellent biosafety for photothermal therapy

Author(s):  
Bing-De Zheng ◽  
Zhenliang Huang ◽  
Li-Li Lv ◽  
Wen-Liang Lan ◽  
Jia-Qian Hu ◽  
...  

Photothermal therapy (PTT) is a promising strategy for cancer treatment. However, development of highly efficient photothermal agents with excellent biosafety, particularly with low liver retention, is very meaningful for clinical...

2020 ◽  
Vol 8 (24) ◽  
pp. 5305-5311
Author(s):  
Yuandong Zhang ◽  
Zhiyu Yang ◽  
Xiaohua Zheng ◽  
Li Chen ◽  
Zhigang Xie

A highly efficient NIR BODIPY nano-photosensitizer constructed by multi-intersection effects provides beneficial guidance for photodynamic and photothermal therapy.


Pharmaceutics ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 839 ◽  
Author(s):  
Taehoon Sim ◽  
Chaemin Lim ◽  
Ngoc Ha Hoang ◽  
Yuseon Shin ◽  
Jae Chang Kim ◽  
...  

Combination therapy is considered to be a promising strategy for improving the therapeutic efficiency of cancer treatment. In this study, an on-demand pH-sensitive nanocluster (NC) system was prepared by the encapsulation of gold nanorods (AuNR) and doxorubicin (DOX) by a pH-sensitive polymer, poly(aspartic acid-graft-imidazole)-PEG, to enhance the therapeutic effect of chemotherapy and photothermal therapy. At pH 6.5, the NC systems formed aggregated structures and released higher drug amounts while sustaining a stable nano-assembly, structured with less systemic toxicity at pH 7.4. The NC could also increase antitumor efficacy as a result of improved accumulation and release of DOX from the NC system at pHex and pHen with locally applied near-infrared light. Therefore, an NC system would be a potent strategy for on-demand combination treatment to target tumors with less systemic toxicity and an improved therapeutic effect.


Author(s):  
Qi Su ◽  
Changrong Wang ◽  
Huijuan Song ◽  
Chuangnian Zhang ◽  
Jinjian Liu ◽  
...  

Immunotherapy is revolutionizing cancer treatment. Vaccination of antigenic peptides has been identified as a promising strategy for cancer immunotherapy while insufficient immune responses were stimulated due to low antigenicity. Moreover,...


2020 ◽  
Author(s):  
zhihong sun ◽  
Guanjun Deng ◽  
Xinghua Peng ◽  
Xiuli Xu ◽  
Lanlan Liu ◽  
...  

Recently, photothermal-immuno synergistic therapy under mild temperature (~ 45 °C) has got broad interest in cancer treatment. Inhibition the intratumorally HSPs production is the key to accomplish highly efficient and mild photothermal therapy. In this work, we developed biomimetic nanoterminators with mature DCs functions by coating the mature dendritic cell membrane on photothermal nanoagents. As-prepared nanoterminators could automatically locate on T cell in the complex tumor-immune microenvironment and promote the T cells proliferation, activation and cytokine secretion, which could not only inhibit the expression of heat shock proteins to cooperate on highly efficient mild photothermal therapy (~42°C), but also promote tumor apoptosis during the treatment. More importantly, this nanoterminator could serve as vaccine to trigger anti-tumor immune response of the whole body, which would be promising to long-life tumor inhibition and termination.


2021 ◽  
Author(s):  
Esra Tanrıverdi Eçik ◽  
Onur BULUT ◽  
Hasan Hüseyin Kazan ◽  
Elif Şenkuytu ◽  
Bunyemin Cosut

Photodynamic therapy (PDT) is a promising strategy in cancer treatment with its relatively lower side effect profile. Undoubtedly, the key component of PDT is the photosensitizers with a high ability...


Nanoscale ◽  
2021 ◽  
Author(s):  
Jianqin Yan ◽  
Zhuangzhuang Zhang ◽  
xiaohui Zhan ◽  
Keqi Chen ◽  
Yuji Pu ◽  
...  

mproving the deep penetration of nanoparticles and realizing the combination of chemotherapy and immunotherapy have become a promising strategy for cancer treatment. Herein, nuclear-targeted tetrahedral DNA nanostructure (NLS-TDNs, NT) was...


Author(s):  
Gang Wu ◽  
Bao Jiang ◽  
Lin Zhou ◽  
Ao Wang ◽  
Shaohua Wei

Activated carbon nanoparticles (ANs) were synthesized from coconut shell. ANs show peroxidase and photothermal conversion activities, allowing synergistic cancer treatment via chemodynamic therapy (CDT) and photothermal therapy (PTT).


Author(s):  
Yinghui Wang ◽  
Ying Zhao ◽  
Yang Liu ◽  
Qishun Wang ◽  
Jianhua Liu ◽  
...  

Photothermal therapy (PTT) stimulated by the lights in the second near-infrared (NIR-II) biowindow shows great superiorities in penetration ability of tissue and maximum permissible exposure (MPE). Exploring new photothermal agents...


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