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Fernandes DA. Liposomes for Cancer Theranostics. Pharmaceutics 2023; 15:2448. [PMID: 37896208 PMCID: PMC10610083 DOI: 10.3390/pharmaceutics15102448] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/16/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Cancer is one of the most well-studied diseases and there have been significant advancements over the last few decades in understanding its molecular and cellular mechanisms. Although the current treatments (e.g., chemotherapy, radiotherapy, gene therapy and immunotherapy) have provided complete cancer remission for many patients, cancer still remains one of the most common causes of death in the world. The main reasons for the poor response rates for different cancers include the lack of drug specificity, drug resistance and toxic side effects (i.e., in healthy tissues). For addressing the limitations of conventional cancer treatments, nanotechnology has shown to be an important field for constructing different nanoparticles for destroying cancer cells. Due to their size (i.e., less than 1 μm), nanoparticles can deliver significant amounts of cancer drugs to tumors and are able to carry moieties (e.g., folate, peptides) for targeting specific types of cancer cells (i.e., through receptor-mediated endocytosis). Liposomes, composed of phospholipids and an interior aqueous core, can be used as specialized delivery vehicles as they can load different types of cancer therapy agents (e.g., drugs, photosensitizers, genetic material). In addition, the ability to load imaging agents (e.g., fluorophores, radioisotopes, MRI contrast media) enable these nanoparticles to be used for monitoring the progress of treatment. This review examines a wide variety of different liposomes for cancer theranostics, with the different available treatments (e.g., photothermal, photodynamic) and imaging modalities discussed for different cancers.
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Dong Y, Zhou L, Shen Z, Ma Q, Zhao Y, Sun Y, Cao J. Iodinated cyanine dye-based nanosystem for synergistic phototherapy and hypoxia-activated bioreductive therapy. Drug Deliv 2022; 29:238-253. [PMID: 35001784 PMCID: PMC8745379 DOI: 10.1080/10717544.2021.2023701] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Photodynamic therapy (PDT) has been applied in cancer treatment by utilizing reactive oxygen species (ROS) to kill cancer cells. However, the effectiveness of PDT is greatly reduced due to local hypoxia. Hypoxic activated chemotherapy combined with PDT is expected to be a novel strategy to enhance anti-cancer therapy. Herein, a novel liposome (LCT) incorporated with photosensitizer (PS) and bioreductive prodrugs was developed for PDT-activated chemotherapy. In the design, CyI, an iodinated cyanine dye, which could simultaneously generate enhanced ROS and heat than other commonly used cyanine dyes, was loaded into the lipid bilayer; while tirapazamine (TPZ), a hypoxia-activated prodrug was encapsulated in the hydrophilic nucleus. Upon appropriate near-infrared (NIR) irradiation, CyI could simultaneously produce ROS and heat for synergistic PDT and photothermal therapy (PTT), as well as provide fluorescence signals for precise real-time imaging. Meanwhile, the continuous consumption of oxygen would result in a hypoxia microenvironment, further activating TPZ free radicals for chemotherapy, which could induce DNA double-strand breakage and chromosome aberration. Moreover, the prepared LCT could stimulate acute immune response through PDT activation, leading to synergistic PDT/PTT/chemo/immunotherapy to kill cancer cells and reduce tumor metastasis. Both in vitro and in vivo results demonstrated improved anticancer efficacy of LCT compared with traditional PDT or chemotherapy. It is expected that these iodinated cyanine dyes-based liposomes will provide a powerful and versatile theranostic strategy for tumor target phototherapy and PDT-induced chemotherapy.
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Affiliation(s)
- Yunxia Dong
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Ling Zhou
- The Key Laboratory of Traditional Chinese Medicine Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine, School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Zijun Shen
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Qingming Ma
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yifan Zhao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Jie Cao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
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Wang Q, Cai J, Niu X, Wang J, Liu J, Xie C, Huang W, Fan Q. Rational design of high performance nanotheranostics for NIR-II fluorescence/magnetic resonance imaging guided enhanced phototherapy. Biomater Sci 2021; 9:3499-3506. [PMID: 33949444 DOI: 10.1039/d1bm00172h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanotheranostics, which can provide great insight into cancer therapy, has been deemed as a promising technology to settle the unmet medical needs. The rational design of high performance nanotheranostics with multiple complementary imaging features and satisfactory therapeutic efficacy is particularly valuable. Herein, versatile nanotheranostic agents DPPB-Gd-I NPs were fabricated by using gadolinium-diethylenetriaminepentaacetic acid chelates and an iodine-decorated copolymer as encapsulation matrixes to encapsulate a polymer DPPB through one-step nanoprecipitation. We have demonstrated that such nanoagents are able to efficiently damage tumors under single dose injection and NIR laser illumination conditions due to the enhanced photodynamic therapy and enhanced photothermal therapy (the tumor inhibition rate was as high as 94.5%). Moreover, these nanoagents can be utilized as dual-modal NIR-II fluorescence/magnetic resonance imaging probes for tumor diagnosis with high sensitivity, deep tissue penetration, and excellent spatial resolution. Overall, this work offers a powerful tactic to fabricate high performance nanotheranostics for clinical application.
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Affiliation(s)
- Qi Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China. and State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Jie Cai
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Xinrui Niu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Jing Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Jiawei Liu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Chen Xie
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
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Kim S, Kim SA, Nam GH, Hong Y, Kim GB, Choi Y, Lee S, Cho Y, Kwon M, Jeong C, Kim S, Kim IS. In situ immunogenic clearance induced by a combination of photodynamic therapy and rho-kinase inhibition sensitizes immune checkpoint blockade response to elicit systemic antitumor immunity against intraocular melanoma and its metastasis. J Immunother Cancer 2021; 9:jitc-2020-001481. [PMID: 33479026 PMCID: PMC7825261 DOI: 10.1136/jitc-2020-001481] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2020] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Uveal melanoma (UM) is the most frequent intraocular malignancy and is resistant to immunotherapy. Nearly 50% of patients with UM develop metastatic disease, and the overall survival outcome remains very poor. Therefore, a treatment regimen that simultaneously targets primary UM and prevents metastasis is needed. Here, we suggest an immunotherapeutic strategy for UM involving a combination of local photodynamic therapy (PDT), rho-kinase (ROCK) inhibitor, and PD-1/PD-L1 immune checkpoint blockade. METHODS The antitumor efficacy and immune response of monotreatment or combinational treatment were evaluated in B16F10-bearing syngeneic mouse models. Abscopal antitumor immune responses induced by triple-combinational treatment were validated in syngeneic bilateral B16F10 models. After each treatment, the immune profiles and functional examinations were assessed in tumors and tumor draining lymph nodes by flow cytometry, ELISA, and immunofluorescence assays. In orthotopic intraocular melanoma models, the location of the immune infiltrate in the tumor microenvironment (TME) was evaluated after each treatment by multiplex immunohistochemistry and metastatic nodules were monitored. RESULTS PDT with Ce6-embedded nanophotosensitizer (FIC-PDT) elicited immunogenic cell death and stimulated antigen-presenting cells. In situ immunogenic clearance induced by a combination of FIC-PDT with ripasudil, a clinically approved ROCK inhibitor, stimulated antigen-presenting cells, which in turn primed tumor-specific cytotoxic T cells. Moreover, local immunogenic clearance sensitized PD-1/PD-L1 immune checkpoint blockade responses to reconstruct the TME immune phenotypes of cold tumors into hot tumors, resulting in recruitment of robust cytotoxic CD8+ T cells in the TME, propagation of systemic antitumor immunity to mediate abscopal effects, and prolonged survival. In an immune-privileged orthotopic intraocular melanoma model, even low-dose FIC-PDT and ripasudil combined with anti-PD-L1 antibody reduced the primary tumor burden and prevented metastasis. CONCLUSIONS A combination of localized FIC-PDT and a ROCK inhibitor exerted a cancer vaccine-like function. Immunogenic clearance led to the trafficking of CD8+ T cells into the primary tumor site and sensitized the immune checkpoint blockade response to evoke systemic antitumor immunity to inhibit metastasis, one of the major challenges in UM therapy. Thus, immunogenic clearance induced by FIC-PDT and ROCK inhibitor combined with anti-PD-L1 antibody could be a potent immunotherapeutic strategy for UM.
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Affiliation(s)
- Seohyun Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Seong A Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Gi-Hoon Nam
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Yeonsun Hong
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Gi Beom Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Yoonjeong Choi
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Seokyoung Lee
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Yuri Cho
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea.,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Minsu Kwon
- Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Korea University Hospital, Seoul, South Korea
| | - Cherlhyun Jeong
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea.,KHU-KIST Department of Converging Science and Technology, Kyunghee University, Seoul, South Korea
| | - Sehoon Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea .,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - In-San Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea .,Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, South Korea
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Sun M, Yang D, Sun Q, Jia T, Kuang Y, Gai S, He F, Zhang F, Yang P. A porous material excited by near-infrared light for photo/chemodynamic and photothermal dual-mode combination therapy. J Mater Chem B 2020; 8:10559-10576. [PMID: 32939520 DOI: 10.1039/d0tb01794a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Photodynamic therapy (PDT) and photothermal therapy (PTT) are well-developed light therapy methods for cancer; however, both have a few areas that need improvement. A sustained PDT effect depends on the sustained generation of reactive oxygen species (ROS); therefore, adjusting the type of photosensitizer or the reaction mechanism to prolong the duration of the oxidation-reduction reaction is a possible solution for the continuation of the PDT effect. Further, if PTT could be combined with other treatments, it would bring about a more satisfactory therapeutic effect. To increase the treatment effect of the above two therapeutic methods, a collaborative treatment model of photo/chemodynamic therapy (PCDT) and PTT is needed and is the focus of this study. On the one hand, PCDT is a therapy that integrates PDT with Fenton-like reactions, and Fenton-like reactions can help PDT to produce more ROS by making better use of H2O2 in the tumor microenvironment. On the other hand, the PTT effect can also promote PCDT effects to some extent because rising temperature can elevate the redox reaction rate. Therefore, a copper oxide semiconductor photosensitizer was selected in this research to realize the abovementioned therapeutic purposes and experimental concepts. A porous silica carrier can facilitate the uniform attachment of the copper oxide photosensitizer to the SiO2 surface to form a relatively uniform nanostructure, and the nanoporous structure can increase the performance of the whole material to a certain extent. Based on these perspectives, SiO2@CuO nanotube (NT), an agent of both Fenton-like photosensitization and photothermal reagent, is synthesized by the hydrothermal co-precipitation template approach to shrink the tumor through the combined effect of PCDT and PTT. In this system, copper ions can participate in the Fenton-like reactions and make better use of H2O2 to generate more ROS. Herein, 808 nm light was chosen for irradiation because of its suitable excitation ability, applicable penetration and low intrinsic damage. The experimental results show that SiO2@CuO NT is a promising agent that combines PCDT and PTT for cancer treatment. This work provides guidance for the synthesis of Fenton-like photosensitizers for the PCDT effect.
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Affiliation(s)
- Mingdi Sun
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China.
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Sun M, Yang D, Fanqi W, Wang Z, Ji H, Liu Z, Gai S, Zhang F, Yang P. SiO 2@Cu 7S 4 nanotubes for photo/chemodynamic and photo-thermal dual-mode synergistic therapy under 808 nm laser irradiation. J Mater Chem B 2020; 8:5707-5721. [PMID: 32510093 DOI: 10.1039/d0tb00696c] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photodynamic therapy (PDT) is a light-based modality for tumor treatment that involves the generation of reactive oxygen species (ROS) by the combination of light, a photosensitizer, and molecular oxygen. Nevertheless, the therapeutic effects of PDT are limited by hypoxic conditions that worsen with oxygen consumption during the PDT process. Photo/chemodynamic therapy (PCDT) based on the Fenton reaction is one strategy to improve ROS generation, provided a highly effective Fenton reagent is developed. In this research, SiO2@Cu7S4 nanotubes (NTs) were synthesized as a PCDT agent. This double-valence metal-sulfide composite material can react with H2O2 at the tumor site. SiO2@Cu7S4 NTs can produce more ROS than the traditional PDT agents, and besides, they can also be used as a photothermal therapy (PTT) agent. SiO2@Cu7S4 NTs will trigger the PTT effect under 808 nm irradiation and generate a large amount of heat to eradicate cancer cells. This heat will also promote the PCDT effect by increasing the reaction rate. Thus, the SiO2@Cu7S4 NT is a suitable material for PCDT and PTT synergistic oncotherapy. The 808 nm laser is selected as the appropriate excitation source, providing adequate penetration and minimal harm to normal cells. The experimental data presented herein demonstrate the promising photosensitive, Fenton-like, and photothermal performance of SiO2@Cu7S4 NTs. Furthermore, the findings could promote the development of PCDT and PTT synergistic therapy. Thus, this research provides a feasible method to design a single, multifunctional material for cancer treatment.
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Affiliation(s)
- Mingdi Sun
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China.
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Hu D, Pan M, Yu Y, Sun A, Shi K, Qu Y, Qian Z. Application of nanotechnology for enhancing photodynamic therapy via ameliorating, neglecting, or exploiting tumor hypoxia. VIEW 2020. [DOI: 10.1002/viw2.6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- DanRong Hu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
| | - Meng Pan
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
| | - Yan Yu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
| | - Ao Sun
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
| | - Kun Shi
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
| | - Ying Qu
- Department of Hematology and Research Laboratory of HematologyState Key Laboratory of BiotherapyWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
| | - ZhiYong Qian
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan University, Collaborative Innovation Center for Biotherapy Chengdu Sichuan P. R. China
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Zhou W, Chen Y, Zhang Y, Xin X, Li R, Xie C, Fan Q. Iodine-Rich Semiconducting Polymer Nanoparticles for CT/Fluorescence Dual-Modal Imaging-Guided Enhanced Photodynamic Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905641. [PMID: 31898866 DOI: 10.1002/smll.201905641] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/05/2019] [Indexed: 05/21/2023]
Abstract
Photodynamic therapy (PDT) is a promising technique for cancer therapy, providing good therapeutic efficacy with minimized side effect. However, the lack of oxygen supply in the hypoxic tumor site obviously restricts the generation of singlet oxygen (1 O2 ), thus limiting the efficacy of PDT. So far, the strategies to improve PDT efficacy usually rely on complicated nanosystems, which require sophisticated design or complex synthetic procedure. Herein, iodine-rich semiconducting polymer nanoparticles (SPN-I) for enhanced PDT, using iodine-induced intermolecular heavy-atom effect to elevate the 1 O2 generation, are designed and prepared. The nanoparticles are composed of a near-infrared (NIR) absorbing semiconducting polymer (PCPDTBT) serving as the photosensitizer and source of fluorescence signal, and an iodine-grafted amphiphilic diblock copolymer (PEG-PHEMA-I) serving as the 1 O2 generation enhancer and nanocarrier. Compared with SPN composed of PEG-b-PPG-b-PEG and PCPDTBT (SPN-P), SPN-I can enhance the 1 O2 generation by 1.5-fold. In addition, SPN-I have high X-ray attenuation coefficient because of the high density of iodine in PEG-PHEMA-I, providing SPN-I the ability of use with computed tomography (CT) and fluorescence dual-modal imaging. The study thus provides a simple nanotheranostic platform composed of two components for efficient CT/fluorescence dual-modal imaging-guided enhanced PDT.
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Affiliation(s)
- Wen Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin, 300071, China
| | - Ying Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Yutao Zhang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Xiaoyan Xin
- Department of Radiology, Affiliated Drum-Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Rutian Li
- The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University and Clinical Cancer Institute of Nanjing University, Nanjing, 210008, China
| | - Chen Xie
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
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Cao J, Chi J, Xia J, Zhang Y, Han S, Sun Y. Iodinated Cyanine Dyes for Fast Near-Infrared-Guided Deep Tissue Synergistic Phototherapy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25720-25729. [PMID: 31246000 DOI: 10.1021/acsami.9b07694] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phototheranostics, which combines deep tissue imaging and phototherapy [photodynamic therapy (PDT) and/or photothermal therapy (PTT)] via light irradiation, is a promising strategy to treat tumors. Near-infrared (NIR) cyanine dyes are researched as potential phototheranostics reagents for their excellent photophysical properties. However, the low singlet oxygen generation efficiency of cyanine dyes often leads to inadequate therapeutic efficacy for tumors. Herein, we modified an indocyanine green derivative Cy7 with heavy atom iodine to form a novel NIR dye CyI to improve the reactive oxygen species (ROS) production and heat generation while, at the same time, maintain their fluorescence characteristics for in vivo noninvasive imaging. More importantly, in vitro and in vivo therapeutic results illustrated that CyI could quickly and simultaneously generate enhanced ROS and heat to induce more cancer cell apoptosis and higher inhibition rates in deep HepG2 tumors than other noniodinated NIR dyes upon NIR irradiation. Besides, low toxicity of the resulted iodinated NIR dyes was confirmed by in vivo biodistribution and acute toxicity. Results indicate that this low toxic NIR dye could be an ideal phototheranostics agent for deep tumor treatments. Our study presents a novel approach to achieve the fast-synergistic PDT/PTT treatment in deep tissues.
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Affiliation(s)
| | | | - Junfei Xia
- Department of Bioengineering , Northeastern University , Boston , Massachusetts 02115 , United States
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Xu H, Ohulchanskyy TY, Yakovliev A, Zinyuk R, Song J, Liu L, Qu J, Yuan Z. Nanoliposomes Co-Encapsulating CT Imaging Contrast Agent and Photosensitizer for Enhanced, Imaging Guided Photodynamic Therapy of Cancer. Theranostics 2019; 9:1323-1335. [PMID: 30867833 PMCID: PMC6401496 DOI: 10.7150/thno.31079] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/08/2019] [Indexed: 01/21/2023] Open
Abstract
Fluorescence (FL) and X-ray computed tomography (CT) imaging-guided photodynamic therapy (PDT) can provide a powerful theranostic tool to visualize, monitor, and treat cancer and other diseases with enhanced accuracy and efficacy. Methods: In this study, clinically approved iodinated CT imaging contrast agent (CTIA) iodixanol and commercially available photosensitizer (PS) meso-tetrakis (4-sulphonatophenyl) porphine (TPPS4) were co-encapsulated in biocompatible PEGylated nanoliposomes (NL) for enhanced anticancer PDT guided by bimodal (FL and CT) imaging. Results: The NL co-encapsulation of iodixanol and TPPS4 (LIT) lead to an increase in singlet oxygen generation by PS via the intraparticle heavy-atom (iodine) effect on PS molecules, as it was confirmed by both direct and indirect measurements of singlet oxygen production. The confocal imaging and PDT of cancer cells were performed in vitro, exhibiting the cellular uptake of TPPS4 formulations and enhanced PDT efficacy of LIT. Meanwhile, bimodal (FL and CT) imaging was also conducted with tumor-bearing mice and the imaging results manifested high-efficient accumulation and retention of LIT in tumors. Moreover, PDT of tumor in vivo was shown to be drastically more efficient with LIT than with other formulations of TPPS4. Conclusion: This study demonstrated that LIT can serve as a highly efficient theranostic nanoplatform for enhanced anticancer PDT guided by bimodal (FL and CT) imaging.
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Affiliation(s)
- Hao Xu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
- Bioimaging Core, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR 999078, P.R. China
| | - Tymish Y. Ohulchanskyy
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Artem Yakovliev
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Roman Zinyuk
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Jun Song
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Liwei Liu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Zhen Yuan
- Bioimaging Core, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR 999078, P.R. China
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Park J, Choi E, Shin S, Lim S, Kim D, Baek S, Lee KP, Lee JJ, Lee BH, Kim B, Jeong K, Baik JH, Kim YK, Kim S. Nootropic nanocomplex with enhanced blood-brain barrier permeability for treatment of traumatic brain injury-associated neurodegeneration. J Control Release 2018; 284:152-159. [DOI: 10.1016/j.jconrel.2018.06.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 01/14/2023]
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Enhanced Antitumor Effects of Epidermal Growth Factor Receptor Targetable Cetuximab-Conjugated Polymeric Micelles for Photodynamic Therapy. NANOMATERIALS 2018; 8:nano8020121. [PMID: 29470420 PMCID: PMC5853752 DOI: 10.3390/nano8020121] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/30/2017] [Accepted: 01/18/2018] [Indexed: 12/21/2022]
Abstract
Nanocarrier-based delivery systems are promising strategies for enhanced therapeutic efficacy and safety of toxic drugs. Photodynamic therapy (PDT)—a light-triggered chemical reaction that generates localized tissue damage for disease treatments—usually has side effects, and thus patients receiving photosensitizers should be kept away from direct light to avoid skin phototoxicity. In this study, a clinically therapeutic antibody cetuximab (C225) was conjugated to the surface of methoxy poly(ethylene glycol)-b-poly(lactide) (mPEG-b-PLA) micelles via thiol-maleimide coupling to allow tumor-targetable chlorin e6 (Ce6) delivery. Our results demonstrate that more C225-conjugated Ce6-loaded polymeric micelles (C225-Ce6/PM) were selectively taken up than Ce6/PM or IgG conjugated Ce6/PM by epidermal growth factor receptor (EGFR)-overexpressing A431 cells observed by confocal laser scanning microscopy (CLSM), thereby decreasing the IC50 value of Ce6-mediated PDT from 0.42 to 0.173 μM. No significant differences were observed in cellular uptake study or IC50 value between C225-Ce6/PM and Ce6/PM groups in lower EGFR expression HT-29 cells. For antitumor study, the tumor volumes in the C225-Ce6/PM-PDT group (percentage of tumor growth inhibition, TGI% = 84.8) were significantly smaller than those in the Ce6-PDT (TGI% = 38.4) and Ce6/PM-PDT groups (TGI% = 53.3) (p < 0.05) at day 21 through reduced cell proliferation in A431 xenografted mice. These results indicated that active EGFR targeting of photosensitizer-loaded micelles provides a possible way to resolve the dose-limiting toxicity of conventional photosensitizers and represents a potential delivery system for PDT in a clinical setting.
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13
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Jeong K, Park S, Lee YD, Kang CS, Kim HJ, Park H, Kwon IC, Kim J, Park CR, Kim S. Size-engineered biocompatible polymeric nanophotosensitizer for locoregional photodynamic therapy of cancer. Colloids Surf B Biointerfaces 2016; 144:303-310. [PMID: 27107384 DOI: 10.1016/j.colsurfb.2016.04.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 04/03/2016] [Accepted: 04/13/2016] [Indexed: 02/02/2023]
Abstract
Current approaches in use of water-insoluble photosensitizers for photodynamic therapy (PDT) of cancer often demand a nano-delivery system. Here, we report a photosensitizer-loaded biocompatible nano-delivery formulation (PPaN-20) whose size was engineered to ca. 20nm to offer improved cell/tissue penetration and efficient generation of cytotoxic singlet oxygen. PPaN-20 was fabricated through the physical assembly of all biocompatible constituents: pyropheophorbide-a (PPa, water-insoluble photosensitizer), polycaprolactone (PCL, hydrophobic/biodegradable polymer), and Pluronic F-68 (clinically approved polymeric surfactant). Repeated microemulsification/evaporation method resulted in a fine colloidal dispersion of PPaN-20 in water, where the particulate PCL matrix containing well-dispersed PPa molecules inside was stabilized by the Pluronic corona. Compared to a control sample of large-sized nanoparticles (PPaN-200) prepared by a conventional solvent displacement method, PPaN-20 revealed optimal singlet oxygen generation and efficient cellular uptake by virtue of the suitably engineered size and constitution, leading to high in vitro phototoxicity against cancer cells. Upon administration to tumor-bearing mice by peritumoral route, PPaN-20 showed efficient tumor accumulation by the enhanced cell/tissue penetration evidenced by in vivo near-infrared fluorescence imaging. The in vivo PDT treatment with peritumorally administrated PPaN-20 showed significantly enhanced suppression of tumor growth compared to the control group, demonstrating great potential as a biocompatible photosensitizing agent for locoregional PDT treatment of cancer.
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Affiliation(s)
- Keunsoo Jeong
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea; Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, and Department of Materials Science and Engineering, Seoul National University, Gwanak-gu, Seoul 151-744, South Korea
| | - Solji Park
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea; Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Yong-Deok Lee
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea
| | - Chi Soo Kang
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea
| | - Hyun Jun Kim
- Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Hyeonjong Park
- Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea
| | - Jungahn Kim
- Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Chong Rae Park
- Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, and Department of Materials Science and Engineering, Seoul National University, Gwanak-gu, Seoul 151-744, South Korea
| | - Sehoon Kim
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea.
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14
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Abstract
In chemotherapy a fine balance between therapeutic and toxic effects needs to be found for each patient, adapting standard combination protocols each time. Nanotherapeutics has been introduced into clinical practice for treating tumors with the aim of improving the therapeutic outcome of conventional therapies and of alleviating their toxicity and overcoming multidrug resistance. Photodynamic therapy (PDT) is a clinically approved, minimally invasive procedure emerging in cancer treatment. It involves the administration of a photosensitizer (PS) which, under light irradiation and in the presence of molecular oxygen, produces cytotoxic species. Unfortunately, most PSs lack specificity for tumor cells and are poorly soluble in aqueous media, where they can form aggregates with low photoactivity. Nanotechnological approaches in PDT (nanoPDT) can offer a valid option to deliver PSs in the body and to solve at least some of these issues. Currently, polymeric nanoparticles (NPs) are emerging as nanoPDT system because their features (size, surface properties, and release rate) can be readily manipulated by selecting appropriate materials in a vast range of possible candidates commercially available and by synthesizing novel tailor-made materials. Delivery of PSs through NPs offers a great opportunity to overcome PDT drawbacks based on the concept that a nanocarrier can drive therapeutic concentrations of PS to the tumor cells without generating any harmful effect in non-target tissues. Furthermore, carriers for nanoPDT can surmount solubility issues and the tendency of PS to aggregate, which can severely affect photophysical, chemical, and biological properties. Finally, multimodal NPs carrying different drugs/bioactive species with complementary mechanisms of cancer cell killing and incorporating an imaging agent can be developed. In the following, we describe the principles of PDT use in cancer and the pillars of rational design of nanoPDT carriers dictated by tumor and PS features. Then we illustrate the main nanoPDT systems demonstrating potential in preclinical models together with emerging concepts for their advanced design.
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15
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Ng KK, Zheng G. Molecular Interactions in Organic Nanoparticles for Phototheranostic Applications. Chem Rev 2015; 115:11012-42. [PMID: 26244706 DOI: 10.1021/acs.chemrev.5b00140] [Citation(s) in RCA: 353] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kenneth K Ng
- Princess Margaret Cancer Centre and Techna Institute, University Health Network , Toronto, Ontario M5G 2C4, Canada
| | - Gang Zheng
- Princess Margaret Cancer Centre and Techna Institute, University Health Network , Toronto, Ontario M5G 2C4, Canada
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16
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Lee E, Oh C, Kim IS, Kwon IC, Kim S. Co-delivery of chemosensitizing siRNA and an anticancer agent via multiple monocomplexation-induced hydrophobic association. J Control Release 2015; 210:105-14. [PMID: 25979325 DOI: 10.1016/j.jconrel.2015.05.262] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 04/03/2015] [Accepted: 05/09/2015] [Indexed: 01/30/2023]
Abstract
Synergistic combination of gene targeting and chemotherapy by co-delivering siRNA and anticancer drugs has widely been investigated to develop siRNA-based therapeutics for cancer treatment. Despite clinical potential of this approach, big challenges still remain such as delivery efficiency or stability/biocompatibility of the siRNA delivery system. Here we report a simple and biocompatible co-delivering formulation based on a unique complexation method, i.e., multiple monocomplexation-induced hydrophobic association between Bcl-2 targeting siRNA and a monocationic anticancer agent (benzethonium chloride, BZT). A colloidal formulation of the hydrophobically associated multiple monocomplex (HMplex) composed of siRNA, BZT and Pluronic F-68 was spontaneously constructed by physical mixing of the ternary constituents. In vitro and in vivo studies revealed that the ternary HMplex with a low charge ratio (N/P=4) possesses a tightly complexed stable nanostructure with Pluronic surface and small colloidal size less than 10nm, which allowed for 1) suitable protection of siRNA in serum-rich physiological environment, 2) efficient intracellular transfection into the cytoplasm, and 3) successful peritumoral co-delivery into the tumor tissue with dense interstitial matrix. Compared to non-targeting HMplexes between scrambled siRNA and BZT, Bcl-2 targeting HMplexes enhanced significantly both mRNA down-regulation by siRNA and apoptosis induction by BZT, and thus greatly suppressed the tumor volume when administered to highly aggressive and resistant human breast cancer xenografts (MDA-MB-231) in mice. These results elucidate that the co-complexed siRNA and BZT were liberated by intracellular decomplexation to trigger a synergistically combined therapeutic action. The successful siRNA/chemodrug co-delivery in vivo via peritumoral route and the greatly promoted therapeutic efficacy thereby represent the clinical potential of HMplexes for adjuvant locoregional cancer treatment by gene-targeted combination therapy.
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Affiliation(s)
- Eunjung Lee
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Changhwoa Oh
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - In-San Kim
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Sehoon Kim
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea.
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17
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Park S, Jeong K, Lee E, Lee JH, Yhee JY, Singh A, Koh J, Lee S, Kim K, Chan Kwon I, Park CR, Kim J, Kim S. Amphiphilized poly(ethyleneimine) nanoparticles: a versatile multi-cargo carrier with enhanced tumor-homing efficiency and biocompatibility. J Mater Chem B 2014; 3:198-206. [PMID: 32261940 DOI: 10.1039/c4tb01255k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Current theranostic approaches in cancer therapy demand delivery systems that can carry multiple drugs or imaging agents in a single nanoplatform with uniform biodistribution and improved target specificity. In this study, we have developed amphiphilized poly(ethyleneimine) nanoparticles (aPEI NPs) as a versatile multi-cargo delivery platform. The aPEI NPs were engineered to have the loading capacity for both hydrophobic molecules and negatively charged hydrophilic colloidal cargos through amphiphilic modification, i.e., octadecylation and subsequent PEGylation of poly(ethyleneimine). In the aqueous phase, the resulting aPEIs underwent amphiphilic self-assembly into spherical nanoparticles whose structure is constituted of the hydrophobic core with the positively charged surface and the hydrophilic neutral corona. The high degree of PEGylation resulted in the tiny colloidal size (<15 nm in diameter) and rendered the outmost surface coated with an antifouling corona which minimizes general shortcomings of poly(ethyleneimine)-based nanocarriers (e.g., cytotoxicity and liver filtration) while keeping its advantage (loading capability for negatively charged drugs). The unique nanostructure of aPEI NPs allowed for facile loading of hydrophobic model drugs (rubrene and IR780) in the core as well as negatively charged colloids (Pdots, proteins and DNA) on the inner surface via the hydrophobic and electrostatic interactions, respectively. Fluorescence imaging experiments demonstrated that the highly PEGylated aPEI-25 NPs showed prolonged blood circulation with minimal liver filtration and efficient delivery of the loaded cargos to the tumor. These combined merits, along with negligible toxicity profiles both in vitro and in vivo, validate the potential of aPEI-25 NPs as versatile nanocarriers for multi-cargo delivery.
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Affiliation(s)
- Solji Park
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea.
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18
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Ai J, Xu Y, Lou B, Li D, Wang E. Multifunctional AS1411-functionalized fluorescent gold nanoparticles for targeted cancer cell imaging and efficient photodynamic therapy. Talanta 2013; 118:54-60. [PMID: 24274270 DOI: 10.1016/j.talanta.2013.09.062] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 09/20/2013] [Accepted: 09/23/2013] [Indexed: 01/28/2023]
Abstract
Herein, one multifunctional AS1411-functionalized fluorescent gold nanoparticles (named NAANPs) is synthesized and successfully applied for both targeted cancer cell imaging and efficient photodynamic therapy (PDT). The NAANPs are obtained by functionalizing the gold nanoparticles with AS1411 aptamer and then bound with one porphyrin derivative N-methylmesoporphyrin IX (NMM). Using HeLa cells over expressing nucleolin as representative cancer cells, the formed NAANPs can target to the cell surface via the specific AS1411-nucleolin interaction, which can discriminate the cancer cells from normal ones (e.g. HEK293) unambiguously. That the fluorescence intensity of NMM increased significantly upon binding to AS1411 G-quadruplex makes the NAANPs appropriate fluorescence reagent for cell imaging. Meanwhile, NMM can also be used as a photosensitizer, thus irradiation of the NAANPs by the white light from a common electric torch can lead to efficient production of cytotoxic reactive oxygen species for establishing a new type of PDT to cancer cells. Gold nanoparticles play the roles of both carrier and enhancer of the functional groups onto the cells. In addition, they not only possess inherently certain cytotoxicity to the cancer cells, but also boost the cellular uptake of the fluorescent groups. As a result, the efficiency of both the targeted cell imaging and PDT could be ensured.
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Affiliation(s)
- Jun Ai
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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19
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Lim CK, Heo J, Shin S, Jeong K, Seo YH, Jang WD, Park CR, Park SY, Kim S, Kwon IC. Nanophotosensitizers toward advanced photodynamic therapy of Cancer. Cancer Lett 2013; 334:176-87. [DOI: 10.1016/j.canlet.2012.09.012] [Citation(s) in RCA: 216] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/14/2012] [Accepted: 09/15/2012] [Indexed: 02/07/2023]
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20
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Fan J, Fang G, Zeng F, Wang X, Wu S. Water-dispersible fullerene aggregates as a targeted anticancer prodrug with both chemo- and photodynamic therapeutic actions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:613-621. [PMID: 23117954 DOI: 10.1002/smll.201201456] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 07/18/2012] [Indexed: 06/01/2023]
Abstract
Prodrug therapy is one strategy to deliver anticancer drugs in a less reactive manner to reduce nonspecific cytotoxicity. A new multifunctional anticancer prodrug system based on water-dispersible fullerene (C60) aggregates is introduced; this prodrug system demonstrates active targeting, pH-responsive chemotherapy, and photodynamic therapeutic (PDT) properties. Incorporating (via a cleavable bond) an anticancer drug, which is doxorubicin (DOX) in this study, and a targeting ligand (folic acid) onto fullerene while maintaining an overall size of approximately 135 nm produces a more specific anticancer prodrug. This prodrug can enter folate receptor (FR)-positive cancer cells and kill the cells via intracellular release of the active drug form. Moreover, the fullerene aggregate carrier exhibits PDT action; the cytotoxicity of the system towards FR-positive cancer cells is increased in response to light irradiation. As the DOX drug molecules are conjugated onto fullerene, the DOX fluorescence is significantly quenched by the strong electron-accepting capability of fullerene. The fluorescence restores upon release from fullerene, so this fluorescence quenching-restoring feature can be used to track intracellular DOX release. The combined effect of chemotherapy and PDT increases the therapeutic efficacy of the DOX-fullerene aggregate prodrug. This study provides useful insights into designing and improving the applicability of fullerene for other targeted cancer prodrug systems.
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Affiliation(s)
- Jianquan Fan
- College of Materials Science & Engineering, State Key Laboratory of Luminescent, Materials and Devices, South China University of Technology, Guangzhou 510640, PR China
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21
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Zhou L, Wei S, Ge X, Zhou J, Yu B, Shen J. External heavy-atomic construction of photosensitizer nanoparticles for enhanced in vitro photodynamic therapy of cancer. J Phys Chem B 2012; 116:12744-9. [PMID: 22984941 DOI: 10.1021/jp305137j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Introduction of heavy atoms around photosensitizers (PSs) generally facilitates intersystem crossing (ISC) and improves their quantum yield of singlet oxygen ((1)O(2)) generation ability, which is a key species in photodynamic therapy (PDT). Here, we report Pt(IV)- and Au(III)-modified silica nanoparticles (SN) as the drug delivery system of a hypocrellin A (HA) to improve its photodynamic activity through external heavy atom effect. Comparative studies with Pt- and Au-modified and unmodified nanoparticles have demonstrated that the intraparticle external heavy atom effect on the encapsulated HA molecules significantly enhances their efficiency of (1)O(2) generation and, thereby, the in vitro photodynamic efficacy to cancer cells. The results well elucidated the potential of our PSs/heavy metal ions doped nanocarrier for improving the actual efficacy of PDT.
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Affiliation(s)
- Lin Zhou
- Analysis and Testing Center, College of Chemistry and Materials Science, Jiangsu Key Laboratory Biofunctional Materials, Nanjing Normal University, Nanjing 210046, China
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22
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Klyta M, Ostasiewicz P, Jurczyszyn K, Duś K, Latos-Grażyński L, Pacholska-Dudziak E, Ziółkowski P. Vacata- and divacataporphyrin: new photosensitizers for application in photodynamic therapy-an in vitro study. Lasers Surg Med 2012; 43:607-13. [PMID: 22057488 DOI: 10.1002/lsm.21086] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND OBJECTIVE The photodynamic therapy is a well-known method of treatment of both malignant tumors and non-tumor lesions in human patients. In the present study, we aimed at evaluating the in vitro efficacy of the new photosensitizing agents, vacataporphyrin (VP), and divacataporphyrin (DVP). MATERIALS AND METHODS The effectiveness of VP and DVP was compared to well-known photosensitizers, that is, hematoporphyrin derivative (HPD) and chlorin e6 (Ce6) in identical in vitro conditions. The experiment was performed on a well-established breast cancer cell line, MCF-7 and compared to HCV 29T11-2-D1 cell line. Cells were incubated in standard conditions and they were exposed to different concentrations of VP, DVP, HPD, and Ce6, that is, 180, 90, 45, 22.5, and 10 µg/ml. After incubation with photosensitizers, the cells were washed, medium was exchanged and the cells were subjected to irradiation at the proper wavelengths, light intensity (100 mW/sq cm), and total light doses 4.5 and 9 J/sq cm. RESULTS Our results showed that the VP and DVP are potent photosensitizers and the photocytotoxic effect after the incubation with DVP was much better than that of VP. The cytotoxic effects of VP and DVP were less intensive than these of HPD and Ce6. VP and DVP also accumulated well in the tumor cells. Our results also indicated that the VP and DVP effectiveness on MCF-7 cells was photosensitizer dose and light dose dependent. CONCLUSION The overall properties revealed by both new porphyrins and particularly a possibility for excitation at a higher wavelength and thus a deeper tissue penetration, make them promising candidates for further in vivo experiments.
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Affiliation(s)
- Magdalena Klyta
- Department of Pathology, Wroclaw Medical University, 50-368 Wroclaw, Poland
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23
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Syu WJ, Yu HP, Hsu CY, Rajan YC, Hsu YH, Chang YC, Hsieh WY, Wang CH, Lai PS. Improved photodynamic cancer treatment by folate-conjugated polymeric micelles in a KB xenografted animal model. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:2060-2069. [PMID: 22508664 DOI: 10.1002/smll.201102695] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Indexed: 05/31/2023]
Abstract
Photodynamic therapy (PDT) is a light-induced chemical reaction that produces localized tissue damage for the treatment of cancers and various nonmalignant conditions. In the clinic, patients treated with PDT should be kept away from direct sunlight or strong indoor lighting to avoid skin phototoxicity. In a previous study, it was demonstrated that the skin phototoxicity of meta-tetra(hydroxyphenyl)chlorin (m-THPC), a photosensitizer used in the clinic, can be significantly reduced after micellar encapsulation; however, no improvement in antitumor efficacy was observed. In this work, a folate-conjugated polymeric m-THPC delivery system is developed for improving tumor targeting of the photosensitizer, preventing photodamage to the healthy tissue, and increasing the effectiveness of the photosensitizers. The results demonstrate that folate-conjugated m-THPC-loaded micelles with particle sizes around 100 nm are taken up and accumulated by folate receptor-overexpressed KB cells in vitro and in vivo, and their PDT has no significant adverse effects on the body weight of mice. After an extended delivery time, a single dose of folate-conjugated m-THPC-loaded micelles has higher antitumor effects (tumor growth inhibition = 92%) through inhibition of cell proliferation and reduction of vessel density than free m-THPC or m-THPC-loaded micelles at an equivalent m-THPC concentration of 0.3 mg kg(-1) after irradiation. Furthermore, folate-conjugated m-THPC-loaded micelles at only 0.2 mg kg(-1) m-THPC have a similar antitumor efficacy to m-THPC or m-THPC-loaded micelles with the m-THPC concentration at 0.3 mg kg(-1) , which indicates that the folate conjugation on the micellar photosensitizer apparently reduces the requirement of m-THPC for PDT. Thus, folate-conjugated m-THPC-loaded micelles with improved selectivity via folate-folate receptor interactions have the potential to reduce, not only the skin photosensitivity, but also the drug dose requirement for clinical PDT.
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Affiliation(s)
- Wei-Jhe Syu
- Department of Chemistry, National Chung Hsing University, No. 250 Kuo-Kuang Road, Taichung, Taiwan
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24
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Liu Q, Guan M, Xu L, Shu C, Jin C, Zheng J, Fang X, Yang Y, Wang C. Structural effect and mechanism of C70-carboxyfullerenes as efficient sensitizers against cancer cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:2070-7. [PMID: 22508680 DOI: 10.1002/smll.201200158] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Indexed: 05/21/2023]
Abstract
Carboxyfullerenes with different adduct numbers and cage sizes are tested as photosensitizers for photodynamic therapy (PDT). The photodynamic efficiency of these carboxyfullerenes depends mainly on the cage size, C(60) versus C(70) , and to a lesser extent on the adduct numbers. In particular, malonic acid modified C(70) fullerenes are more efficient than their C(60) counterparts as photosensitizers, and the mechanism of cell death induced by C(70) -carboxyfullerene under light irradiation is investigated in detail. The results indicate that cell death occurs via necrosis accompanied by membrane blebbing, which is a unique phenomenon for photosensitizer-induced cell death. Since C(70) -carboxyfullerene displays an efficient PDT property and negligible dark cytotoxicity, it is promising for use in PDT applications, especially in vascular capillary diseases usually occurring under the surface.
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Affiliation(s)
- Qiaoling Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China
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25
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Lim CK, Shin J, Kwon IC, Jeong SY, Kim S. Iodinated Photosensitizing Chitosan: Self-Assembly into Tumor-Homing Nanoparticles with Enhanced Singlet Oxygen Generation. Bioconjug Chem 2012; 23:1022-8. [DOI: 10.1021/bc300012g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chang-Keun Lim
- Center for Theragnosis, Korea
Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu,
Seoul 136-791, Korea
| | - Jiyoung Shin
- Department
of Life and Nanophaceutical
Science, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul
130-701, Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Korea
Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu,
Seoul 136-791, Korea
| | - Seo Young Jeong
- Department
of Life and Nanophaceutical
Science, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul
130-701, Korea
| | - Sehoon Kim
- Center for Theragnosis, Korea
Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu,
Seoul 136-791, Korea
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26
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Huang L, Chen H, Zheng Y, Song X, Liu R, Liu K, Zeng X, Mei L. Nanoformulation ofd-α-tocopheryl polyethylene glycol 1000 succinate-b-poly(ε-caprolactone-ran-glycolide) diblock copolymer for breast cancer therapy. Integr Biol (Camb) 2011; 3:993-1002. [DOI: 10.1039/c1ib00026h] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Laiqiang Huang
- School of Life Sciences, Tsinghua University, Beijing 100084, P.R. China. Fax: +86 755 26036736; Tel: +86 755 26036736
- The Shenzhen Key Lab of Gene and Antibody Therapy and Division of Life Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen Guangdong 518055, P.R. China
| | - Hongbo Chen
- School of Life Sciences, Tsinghua University, Beijing 100084, P.R. China. Fax: +86 755 26036736; Tel: +86 755 26036736
- The Shenzhen Key Lab of Gene and Antibody Therapy and Division of Life Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen Guangdong 518055, P.R. China
| | - Yi Zheng
- School of Life Sciences, Tsinghua University, Beijing 100084, P.R. China. Fax: +86 755 26036736; Tel: +86 755 26036736
- The Shenzhen Key Lab of Gene and Antibody Therapy and Division of Life Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen Guangdong 518055, P.R. China
| | - Xiaosong Song
- School of Life Sciences, Tsinghua University, Beijing 100084, P.R. China. Fax: +86 755 26036736; Tel: +86 755 26036736
- The Shenzhen Key Lab of Gene and Antibody Therapy and Division of Life Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen Guangdong 518055, P.R. China
| | - Ranyi Liu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Kexin Liu
- College of Pharmacy, Dalian Medical University, Dalian 116027, China
| | - Xiaowei Zeng
- The Shenzhen Key Lab of Gene and Antibody Therapy and Division of Life Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen Guangdong 518055, P.R. China
- Department of Materials Science and Engineering, Qinhuangdao Branch, Northeastern University, Qinhuangdao 066004, P.R. China
| | - Lin Mei
- School of Life Sciences, Tsinghua University, Beijing 100084, P.R. China. Fax: +86 755 26036736; Tel: +86 755 26036736
- The Shenzhen Key Lab of Gene and Antibody Therapy and Division of Life Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen Guangdong 518055, P.R. China
- College of Pharmacy, Dalian Medical University, Dalian 116027, China
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