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Pathological Mechanism of Photodynamic Therapy and Photothermal Therapy Based on Nanoparticles

Authors Hou Y, Yang X, Liu R, Zhao D, Guo C, Zhu A, Wen M, Liu Z, Qu G, Meng H

Received 25 June 2020

Accepted for publication 25 August 2020

Published 15 September 2020 Volume 2020:15 Pages 6827—6838

DOI https://doi.org/10.2147/IJN.S269321

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 4

Editor who approved publication: Prof. Dr. Thomas J. Webster


Yun-jing Hou,1 Xin-xin Yang,1 Rui-qi Liu,2 Di Zhao,1 Chen-xu Guo,1 An-chao Zhu,1 Mei-na Wen,1 Zhao Liu,3 Guo-fan Qu,4 Hong-xue Meng1

1Department of Pathology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China; 2Department of Radiation Oncology, Sun Yat-Sen University Cancer Hospital, Guangzhou, People’s Republic of China; 3Department of Ultrasound, Harbin Medical University, Harbin, People’s Republic of China; 4Department of Orthopedics, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China

Correspondence: Hong-xue Meng Department of Pathology
Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, People’s Republic of China
Tel +86-451-85718261
Email menghongxue15@163.com

Abstract: The ultimate goal of phototherapy based on nanoparticles, such as photothermal therapy (PTT) which generates heat and photodynamic therapy (PDT) which not only generates reactive oxygen species (ROS) but also induces a variety of anti-tumor immunity, is to kill tumors. In addition, due to strong efficacy in clinical treatment with minimal invasion and negligible side effects, it has received extensive attention and research in recent years. In this paper, the generations of nanomaterials in PTT and PDT are described separately. In clinical application, according to the different combination pathway of nanoparticles, it can be used to treat different diseases such as tumors, melanoma, rheumatoid and so on. In this paper, the mechanism of pathological treatment is described in detail in terms of inducing apoptosis of cancer cells by ROS produced by PDT, immunogenic cell death to provoke the maturation of dendritic cells, which in turn activate production of CD4+ T cells, CD8+T cells and memory T cells, as well as inhibiting heat shock protein (HSPs), STAT3 signal pathway and so on.

Keywords: pathological mechanism, nanoparticles, photothermal therapy, PTT, photodynamic therapy, PDT

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