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Xiao G, Zhao Y, Wang X, Zeng C, Luo F, Jing J. Photothermally sensitive gold nanocage augments the antitumor efficiency of immune checkpoint blockade in immune "cold" tumors. Front Immunol 2023; 14:1279221. [PMID: 37942337 PMCID: PMC10628457 DOI: 10.3389/fimmu.2023.1279221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/12/2023] [Indexed: 11/10/2023] Open
Abstract
Introduction Immune checkpoint blockade (ICB) has revolutionized the therapy landscape of malignancy melanoma. However, the clinical benefits from this regimen remain limited, especially in tumors lacking infiltrated T cells (known as "cold" tumors). Nanoparticle-mediated photothermal therapy (PTT) has demonstrated improved outcomes in the ablation of solid tumors by inducing immunogenic cell death (ICD) and reshaping the tumor immune microenvironment. Therefore, the combination of PTT and ICB is a promising regimen for patients with "cold" tumors. Methods A second near-infrared (NIR-II) light-activated gold nanocomposite AuNC@SiO2@HA with AuNC as a kernel, silica as shell, and hyaluronic acid (HA) polymer as a targeting molecule, was synthesized for PTT. The fabricated AuNC@SiO2@HA nanocomposites underwent various in vitro studies to characterize their physicochemical properties, light absorption spectra, photothermal conversion ability, cellular uptake ability, and bioactivities. The synergistic effect of AuNC@SiO2@HA-mediated PTT and anti-PD-1 immunotherapy was evaluated using a mouse model of immune "cold" melanoma. The tumor-infiltrating T cells were assessed by immunofluorescence staining and flow cytometry. Furthermore, the mechanism of AuNC@SiO2@HA-induced T-cell infiltration was investigated through immunochemistry staining of the ICD-related markers, including HSP70, CRT, and HMGB1. Finally, the safety of AuNC@SiO2@HA nanocomposites was evaluated in vivo. Results The AuNC@SiO2@HA nanocomposite with absorption covering 1064 nm was successfully synthesized. The nano-system can be effectively delivered into tumor cells, transform the optical energy into thermal energy upon laser irradiation, and induce tumor cell apoptosis in vitro. In an in vivo mouse melanoma model, AuNC@SiO2@HA nanocomposites significantly induced ICD and T-cell infiltration. The combination of AuNC@SiO2@HA and anti-PD-1 antibody synergistically inhibited tumor growth via stimulating robust T lymphocyte immune responses. Discussion The combination of AuNC@SiO2@HA-mediated PTT and anti-PD-1 immunotherapy proposed a neoteric strategy for oncotherapy, which efficiently convert the immune "cold" tumors into "hot" ones.
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Affiliation(s)
- Guixiu Xiao
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
- Department of Medical Oncology, Cancer Center, Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yujie Zhao
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Xueyan Wang
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Chuan Zeng
- Radiology Department, Sichuan Jianzhu Hospital, Chengdu, Sichuan, China
| | - Feng Luo
- Department of Medical Oncology, Cancer Center, Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jing Jing
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
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Lee SS, Paliouras M, Trifiro MA. Functionalized Carbon Nanoparticles as Theranostic Agents and Their Future Clinical Utility in Oncology. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010108. [PMID: 36671680 PMCID: PMC9854994 DOI: 10.3390/bioengineering10010108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
Over the years, research of nanoparticle applications in pre-clinical and clinical applications has greatly advanced our therapeutic and imaging approaches to many diseases, most notably neoplastic disorders. In particular, the innate properties of inorganic nanomaterials, such as gold and iron oxide, as well as carbon-based nanoparticles, have provided the greatest opportunities in cancer theranostics. Carbon nanoparticles can be used as carriers of biological agents to enhance the therapeutic index at a tumor site. Alternatively, they can also be combined with external stimuli, such as light, to induce irreversible physical damaging effects on cells. In this review, the recent advances in carbon nanoparticles and their use in cancer theranostics will be discussed. In addition, the set of evaluations that will be required during their transition from laboratory investigations toward clinical trials will be addressed.
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Affiliation(s)
- Seung S. Lee
- Division of Experimental Medicine, McGill University, Montreal, QC H4A 3J1, Canada
- Lady Davis Institute for Medical Research—Jewish General Hospital, Montreal, QC H4A 3J1, Canada
| | - Miltiadis Paliouras
- Division of Experimental Medicine, McGill University, Montreal, QC H4A 3J1, Canada
- Lady Davis Institute for Medical Research—Jewish General Hospital, Montreal, QC H4A 3J1, Canada
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada
- Department of Oncology, McGill University, Montreal, QC H4A 3J1, Canada
- Correspondence:
| | - Mark A. Trifiro
- Division of Experimental Medicine, McGill University, Montreal, QC H4A 3J1, Canada
- Lady Davis Institute for Medical Research—Jewish General Hospital, Montreal, QC H4A 3J1, Canada
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada
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Ding D, Mei Z, Huang H, Feng W, Chen L, Chen Y, Zhou J. Oxygen-Independent Sulfate Radical for Stimuli-Responsive Tumor Nanotherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200974. [PMID: 35488513 PMCID: PMC9189647 DOI: 10.1002/advs.202200974] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/25/2022] [Indexed: 05/08/2023]
Abstract
Variant modalities are quested and merged into the tumor nanotherapy by leveraging the excitation from external or intratumoral incentives. However, the ubiquitous hypoxia and the insufficient content of hydrogen peroxide (H2 O2 ) in tumor microenvironments inevitably hinder the effective production of reactive oxygen species (ROS). To radically extricate from the shackles, peroxymonosulfate (PMS: HSO5- )-loaded hollow mesoporous copper sulfide (CuS) nanoparticles (NPs) are prepared as the distinct ROS donors for sulfate radical (•SO4- )-mediated and stimuli-responsive tumor nanotherapy in an oxygen-independent manner. In this therapeutic modality, the second near-infrared laser irradiation, together with the released copper ions as well as the heat produced by CuS after illumination, work together to activate PMS thus triply ensuring the copious production of •SO4- . Different from conventional ROS, the emergence of •SO4- , possessing a longer half-life and more rapid reaction, is independent of the oxygen (O2 ) and H2 O2 content within the tumor. In addition, this engineered nanosystem also exerts the function of photoacoustic imaging and skin restoration on the corresponding animal models. This study reveals the enormous potential of sulfate radical in oncotherapy and broadens pave for exploring the application of multifunctional and stimuli-responsive nanosystems in biomedicine.
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Affiliation(s)
- Dandan Ding
- Department of UltrasoundRuijin HospitalShanghai Jiaotong University School of MedicineShanghai200025P. R. China
| | - Zihan Mei
- Department of UltrasoundRuijin HospitalShanghai Jiaotong University School of MedicineShanghai200025P. R. China
| | - Hui Huang
- Shanghai Engineering Research Center of Organ RepairMaterdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Wei Feng
- Shanghai Engineering Research Center of Organ RepairMaterdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Liang Chen
- Shanghai Engineering Research Center of Organ RepairMaterdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Yu Chen
- Shanghai Engineering Research Center of Organ RepairMaterdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
- School of MedicineShanghai UniversityShanghai200444P. R. China
- Wenzhou Institute of Shanghai UniversityWenzhou325000P. R. China
| | - Jianqiao Zhou
- Department of UltrasoundRuijin HospitalShanghai Jiaotong University School of MedicineShanghai200025P. R. China
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Guo W, Liu W, Wan P, Wang H, Xiao C, Chen L, Chen X. Cationic Amphiphilic Dendrons with Anticancer Activity. ACS Biomater Sci Eng 2022; 8:2121-2130. [PMID: 35395157 DOI: 10.1021/acsbiomaterials.2c00181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Cancer has become the leading cause of human death worldwide, and there is an urgent need to design and develop new oncology drugs. In this study, we report series of cationic amphiphilic dendrons with different hydrophobic alkyl chains (Cn) and different generations (Gx) and demonstrate their use for anticancer applications. The results revealed that lower-generation dendrons (G1) with a longer hydrophobic alkyl chain (C12 and C18) have stronger antitumor activity. Among these dendrons, a lead candidate C12-G1 was identified that demonstrated excellent broad-spectrum antitumor activity in 7 cancer cell lines including highly metastatic tumor cells, while simultaneously, hemolysis was negligible. Mechanistic studies showed that C12-G1 could lead to cytoplasmic leakage and induce cancer cell necrosis through membrane disruption. In addition, C12-G1 showed potent inhibition of tumor growth in a B16-F10 melanoma model. In conclusion, these findings demonstrate that the cationic amphiphilic dendron might be a promising agent for anticancer application.
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Affiliation(s)
- Wei Guo
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Wenchang Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Pengqi Wan
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Hao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Li Chen
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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Kim J, Lee JY, Park HY, Kim H, Kang JH, Kim HJ, Jeong W. Combination of peptides with biological, organic, and inorganic materials for synergistically enhanced diagnostics and therapeutics. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Joo‐Young Kim
- Department of Biological Engineering Inha University Incheon Republic of Korea
- Department of Biological Sciences and Bioengineering Inha University Incheon Republic of Korea
| | - Jae Yun Lee
- Department of Biological Engineering Inha University Incheon Republic of Korea
| | - Ha Yeon Park
- Department of Biological Engineering Inha University Incheon Republic of Korea
| | - Hyunji Kim
- Department of Biological Engineering Inha University Incheon Republic of Korea
| | - Jeon Hyeong Kang
- Department of Biological Engineering Inha University Incheon Republic of Korea
| | - Hyun Jin Kim
- Department of Biological Engineering Inha University Incheon Republic of Korea
- Department of Biological Sciences and Bioengineering Inha University Incheon Republic of Korea
| | - Woo‐Jin Jeong
- Department of Biological Engineering Inha University Incheon Republic of Korea
- Department of Biological Sciences and Bioengineering Inha University Incheon Republic of Korea
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Wang W, Li X, Tang K, Song Z, Luo X. A AuNP-capped cage fluorescent biosensor based on controlled-release and cyclic enzymatic amplification for ultrasensitive detection of ATP. J Mater Chem B 2021; 8:5945-5951. [PMID: 32667018 DOI: 10.1039/d0tb00666a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Gold nanodevices have attracted extensive interest in the detection of specific targets within cells. However, constructing gold sensing devices that can be activated by the simulation of remote applications remains a huge challenge. Here, we report a Au nanoparticle (AuNP)-capped cage fluorescent biosensor based on controlled-release and Exonuclease III (Exo III) assisted cyclic enzymatic amplification that can be activated by adenosine triphosphate (ATP). In the system, AuNPs were used as the building blocks to cap the pores of Au nanocages (AuNCs) loaded with Rhodamine B (RhB) molecules through the hybridization of DNA. The RhB fluorescent molecules were finally released with the help of Exo III in the presence of ATP for detection purposes. Ultimately, the biosensor leads to a wide linear ATP detection range from 1.0 × 10-9 to 1.0 × 10-7 M with a limit of detection (LOD) down to 0.88 nM. In addition, it also has good selectivity for ATP to distinguish between ATP and ATP analogues such as cytidine triphosphate (CTP), guanosine triphosphate (GTP), and uridine triphosphate (UTP). Therefore, as a convenient and sensitive biosensor, it is expected to be widely used in the biomedical field.
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Affiliation(s)
- Wei Wang
- Key Laboratory of Optic-eletric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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Liu X, Feng Y, Xu J, Shi Y, Yang J, Zhang R, Song J, Bai X, Wu X, Bao Y, Luo Y, Li H, Chai L, Gong C, Wang Y, Chen B, Hu J, Fu Y, Luo Y, Zhang H, Shi H. Combination of MAPK inhibition with photothermal therapy synergistically augments the anti-tumor efficacy of immune checkpoint blockade. J Control Release 2021; 332:194-209. [PMID: 33631225 DOI: 10.1016/j.jconrel.2021.02.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 02/05/2023]
Abstract
The combination of MAPK-targeted therapy and immune checkpoint blockade is one of the most promising regimens for patients with advanced melanoma. However, the synergistic efficacy of the combo regimen is still controversial in clinical trials. Here, we report that MAPK inhibition induced T-cell suppression within tumor microenvironment is mediated by attenuation of HSP27/HSP70 and deficiency of neoantigen presentation. To address this problem, we designed a photothermal-responsive on-demand controlled drug release gold nano-system to carry BRAF inhibitor. The nano-system can be specifically delivered into tumor cells rather than T-cells, and effectively transformed the optical energy into heat energy upon laser irradiation. Combination of photothermal and targeted therapy significantly promoted immunogenic cell death and T-cell infiltration. On top of this regimen, systematically administration of PD-1 antibody not only suppressed local-treated tumor but also inhibited abscopal tumor by enhancing generalized immune-related antitumor response. More importantly, the triple-combo regimen could efficiently convert immune "cold" tumors into "hot" ones. In conclusion, our research proves the advantage of photothermal-targeted-immune triple combinatorial regimen in treating tumors which are clinical unresectable multifocal and lack of T-cell infiltration.
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Affiliation(s)
- Xiaowei Liu
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Yanlin Feng
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China; University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jie Xu
- Institutes of Biological Sciences, Zhongshan-Xuhui Hospital, Fudan University, Shanghai 200032, China
| | - Ying Shi
- School of Medicine, University of Electronic Science and Technology of China, 610054 Chengdu, Sichuan, China
| | - Jiqiao Yang
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Rongjie Zhang
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Jinen Song
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Xin Bai
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Xi Wu
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Yu Bao
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Ya Luo
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China
| | - Huifang Li
- Research Core Facility, West China Hospital, Sichuan University, 610041 Chengdu, Sichuan, China
| | - Li Chai
- Research Core Facility, West China Hospital, Sichuan University, 610041 Chengdu, Sichuan, China
| | - Changyang Gong
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, Sichuan, China
| | - Yan Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Laboratory of Molecular Oncology, Peking University Cancer Hospital & Institute, 100142 Beijing, China
| | - Bo Chen
- Conmed Biosciences Inc, 610200 Chengdu, Sichuan, China
| | - Jianping Hu
- College of Pharmacy and Biological Engineering, Chengdu University, 610106 Chengdu, Sichuan, China
| | - Yan Fu
- The National Engineering Laboratory for Anti-Tumor Protein Therapeutics, Beijing Key Laboratory for Protein Therapeutics, Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yongzhang Luo
- The National Engineering Laboratory for Anti-Tumor Protein Therapeutics, Beijing Key Laboratory for Protein Therapeutics, Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
| | - Haiyuan Zhang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China; University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Hubing Shi
- Laboratory of Tumor Targeted and Immune Therapy, Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, 610041 Chengdu, Sichuan, China.
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Li C, Yang XQ, An J, Cheng K, Hou XL, Zhang XS, Song XL, Huang KC, Chen W, Liu B, Zhao YD, Liu TC. A near-infrared light-controlled smart nanocarrier with reversible polypeptide-engineered valve for targeted fluorescence-photoacoustic bimodal imaging-guided chemo-photothermal therapy. Am J Cancer Res 2019; 9:7666-7679. [PMID: 31695793 PMCID: PMC6831479 DOI: 10.7150/thno.37047] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/06/2019] [Indexed: 11/05/2022] Open
Abstract
Despite burgeoning development of nanoplatform made in the past few years, it remains a challenge to produce drug nanocarrier that enables requested on/off drug release. Thus, this study aimed to develop an ideal near-infrared light-triggered smart nanocarrier for targeted imaging-guided treatment of cancer that tactfully integrated photothermal therapy with chemotherapy to accurately control drug release time and dosage. Methods: This delivery system was composed of Ag2S QD coating with dendritic mesoporous silica (DMSN), which acted as nanocarrier of doxorubicin localized inside pores. To provide the nanocarrier with controlled release capability, a polypeptide-engineered that structure was reversible to photothermal effect of Ag2S QD, was covalently grafted to the external surface of drug-loaded DMSN. Results: This nanocarrier with the size of 40~60 nm had satisfactory biocompatibility and photothermal conversion efficiency up to 28.35%. Due to acidity-triggered charge reversal of polypeptide, which significantly extended circulation time and improved targeting ability, fluorescence and photoacoustic signals were still obvious at tumor site post-24 h by tail vein injection and chemo-photothermal synergistic therapy obviously enhanced antitumor efficacy. Mild PTT with multiple short-term exposures not only reduced the side effect of overdose drug but also avoided skin damage caused by long-term irradiation. Conclusion: By adjusting irradiation time and on/off cycle, multiple small amount local drug release reduced the side effect of overdose drug and skin damage. This novel approach provided an ideal near-infrared light-triggered nanocarrier with accurate control of area, time, and especially dosage.
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Liu Y, Yu Q, Chang J, Wu C. Nanobiomaterials: from 0D to 3D for tumor therapy and tissue regeneration. NANOSCALE 2019; 11:13678-13708. [PMID: 31292580 DOI: 10.1039/c9nr02955a] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanobiomaterials have attracted tremendous attention in the biomedical field. Especially in the past few years, a large number of low dimensional nanobiomaterials, including 0D nanostructures, 1D nanotubes and 2D nanosheets, were employed for tumor therapy due to their optically triggered tumor therapy effects and drug loading capacities. However, these low dimensional nanobiomaterials cannot support cell adhesion and possess poor tissue regeneration ability, thus they are not suitable for application in regenerative medicine. Three dimensional (3D) nanofiber scaffolds have attracted extensive attention in tissue regeneration, including bone, skin, nerve and cardiac tissues, due to their similar extracellular matrix structures. Additionally, many 3D scaffolds displayed bone and cartilage regeneration abilities. Therefore, to obtain materials with both tumor therapy and tissue regeneration abilities, it is meaningful and necessary to develop 3D nanobiomaterials with multifunctions. In this review, we systematically review the research progress of nanobiomaterials with varied dimensional structures including 0D, 1D, 2D and 3D, as well as evolutional functions from single tumor therapy to simultaneous tumor therapy and tissue regeneration. This review may pave the way for developing an interdisciplinary research of nanobiomaterials in combination of tumor therapy and regenerative medicine.
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Affiliation(s)
- Yaqin Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Qingqing Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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Simón M, Norregaard K, Jørgensen JT, Oddershede LB, Kjaer A. Fractionated photothermal therapy in a murine tumor model: comparison with single dose. Int J Nanomedicine 2019; 14:5369-5379. [PMID: 31409993 PMCID: PMC6645692 DOI: 10.2147/ijn.s205409] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 04/06/2019] [Indexed: 01/22/2023] Open
Abstract
Purpose: Photothermal therapy (PTT) exploits the light-absorbing properties of nanomaterials such as silica-gold nanoshells (NS) to inflict tumor death through local hyperthermia. However, in in vivo studies of PTT, the heat distribution is often found to be heterogeneous throughout the tumor volume, which leaves parts of the tumor untreated and impairs the overall treatment outcome. As this challenges PTT as a one-dose therapy, this study here investigates if giving the treatment repeatedly, ie, fractionated PTT, increases the efficacy in mice bearing subcutaneous tumors. Methods: The NS heating properties were first optimized in vitro and in vivo. Two fractionated PTT protocols, consisting of two and four laser treatments, respectively, were developed and applied in a murine subcutaneous colorectal tumor model. The efficacy of the two fractionated protocols was evaluated both by longitudinal monitoring of tumor growth and, at an early time point, by positron emission tomography (PET) imaging of 18F-labeled glucose analog 18F-FDG. Results: Overall, there were no significant differences in tumor growth and survival between groups of mice receiving single-dose PTT and fractionated PTT in our study. Nonetheless, some animals did experience inhibited tumor growth or even complete tumor disappearance due to fractionated PTT, and these animals also showed a significant decrease in tumor uptake of 18F-FDG after therapy. Conclusion: This study only found an effect of giving PTT to tumors in fractions compared to a single-dose approach in a few animals. However, many factors can affect the outcome of PTT, and reliable tools for optimization of treatment protocol are needed. Despite the modest treatment effect, our results indicate that 18F-FDG PET/CT imaging can be useful to guide the number of treatment sessions necessary.
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Affiliation(s)
- Marina Simón
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Kamilla Norregaard
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | - Jesper Tranekjær Jørgensen
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
| | | | - Andreas Kjaer
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Department of Biomedical Sciences, Rigshospitalet and University of Copenhagen, Copenhagen, Denmark
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Encinas-Basurto D, Ibarra J, Juarez J, Pardo A, Barbosa S, Taboada P, Valdez MA. Hybrid folic acid-conjugated gold nanorods-loaded human serum albumin nanoparticles for simultaneous photothermal and chemotherapeutic therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:669-678. [PMID: 30033301 DOI: 10.1016/j.msec.2018.06.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 03/22/2018] [Accepted: 06/06/2018] [Indexed: 12/18/2022]
Abstract
Hybrid nanoparticles containing both structural and functional nanocomponents might result in higher success and increased quality of life for patients suffering a disease such as cancer. In this study, we combine chemotherapy of conventional drug doxorubicin (Dox) with gold nanorods (AuNR) for photothermal therapy using multifunctional human serum albumin nanoparticles (HSA NP's) fabricated via desolvation technique with high efficiency. Folic acid (FA) was conjugated to HSA NP's trough an amidation via carbodiimide reaction for a more specific nanoplataform to HeLa cancer cells. The loading efficiency of Dox into AuNR loaded-HSA NP reached up to 2 μg Dox/mg HSA. The HSA-AuNR-Dox NP experienced photothermal heating varying laser potency (1, 0.5 and 0.2 W); reaching the bulk particle solution an increment of 16, 8 and 6 °C after 10 min of near-IR laser exposure respectively. When HeLa cells were treated with this multifunctional nanoplataform containing only AuNR, cancer cells experienced 96% cell viability without irradiation and 55% cell viability after just one irradiation session. When Dox is present in the nanoplataform, viability were 60% and 24% for non-irradiated and irradiated nanoplataforms, respectively. This study demonstrates that HSA-AuNR-Dox nanoparticles are suitable systems allowing a synergic chemo and phothothermal therapy.
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Affiliation(s)
- David Encinas-Basurto
- Departamento de Física, Posgrado en Nanotecnología, Universidad de Sonora, Rosales y Transversal, 83000 Hermosillo, Sonora, Mexico
| | - Jaime Ibarra
- Departamento de Física, Posgrado en Nanotecnología, Universidad de Sonora, Rosales y Transversal, 83000 Hermosillo, Sonora, Mexico
| | - Josué Juarez
- Departamento de Física, Posgrado en Nanotecnología, Universidad de Sonora, Rosales y Transversal, 83000 Hermosillo, Sonora, Mexico
| | - Alberto Pardo
- Departamento de Física de la Materia Condensada, Facultad de Física, Universidad de Santiago de Compostela, Spain
| | - Silvia Barbosa
- Departamento de Física de la Materia Condensada, Facultad de Física, Universidad de Santiago de Compostela, Spain
| | - Pablo Taboada
- Departamento de Física de la Materia Condensada, Facultad de Física, Universidad de Santiago de Compostela, Spain.
| | - Miguel A Valdez
- Departamento de Física, Posgrado en Nanotecnología, Universidad de Sonora, Rosales y Transversal, 83000 Hermosillo, Sonora, Mexico
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12
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Safwat MA, Soliman GM, Sayed D, Attia MA. Fluorouracil-Loaded Gold Nanoparticles for the Treatment of Skin Cancer: Development, in Vitro Characterization, and in Vivo Evaluation in a Mouse Skin Cancer Xenograft Model. Mol Pharm 2018; 15:2194-2205. [PMID: 29701979 DOI: 10.1021/acs.molpharmaceut.8b00047] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Fluorouracil (5-FU) is an antimetabolite drug used in the treatment of various malignancies, such as colon and skin cancers. However, its systemic administration results in severe side effects. Topical 5-FU delivery for the treatment of skin cancer could circumvent these shortcomings, but it is limited by the drug poor permeability through the skin. To enhance 5-FU efficacy against skin cancer and reduce its systemic side effects, it was loaded into a gold nanoparticle (GNP)-based topical delivery system. 5-FU was loaded onto GNPs capped with CTAB through ionic interactions between 5-FU and CTAB. GNPs were prepared at different 5-FU/CTAB molar ratios and evaluated using different techniques. GNP stability and drug release were studied as a function of salt concentration and solution pH. Optimum 5-FU/CTAB-GNPs were incorporated into gel and cream bases, and their ex vivo permeability was evaluated in mice dorsal skin. The in vivo anticancer efficacy of the same preparations was evaluated in A431 tumor-bearing mice. The GNPs had spherical shape and a size of ∼16-150 nm. Maximum 5-FU entrapment was achieved at 5-FU/CTAB molar ratio of 1:1 and pH 11.5. Drug release from GNPs was sustained and pH-dependent. 5-FU GNP gel and cream had around 2-fold higher permeability through mice skin compared with free 5-FU gel and cream formulations. Further, in vivo studies in a mouse model having A431 skin cancer cells implanted in the subcutaneous space showed that the GNP gel and cream achieved 6.8- and 18.4-fold lower tumor volume compared with the untreated control, respectively. These results confirm the potential of topical 5-FU/CTAB-GNPs to enhance drug efficacy against skin cancer.
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Affiliation(s)
- Mohamed A Safwat
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt.,Department of Pharmaceutics, Faculty of Pharmacy , South Valley University , Qena 83523 , Egypt
| | - Ghareb M Soliman
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt.,Department of Pharmaceutics, Faculty of Pharmacy , University of Tabuk , Tabuk , Saudi Arabia
| | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute , Assiut University , Assiut 71526 , Egypt
| | - Mohamed A Attia
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
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13
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Yang DP, Liu X, Teng CP, Owh C, Win KY, Lin M, Loh XJ, Wu YL, Li Z, Ye E. Unexpected formation of gold nanoflowers by a green synthesis method as agents for a safe and effective photothermal therapy. NANOSCALE 2017; 9:15753-15759. [PMID: 28994849 DOI: 10.1039/c7nr06286a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Star fruit (Averrhoa carambola) juice rich in vitamin C and polyphenolic antioxidants was used to synthesize branched gold nanoflowers. These biocompatible and stable gold nanoflowers show strong near-infrared absorption. They are successfully demonstrated to be highly efficient for both in vitro and in vivo photothermal therapy by using an 808 nm laser.
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Affiliation(s)
- Da-Peng Yang
- College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, Fujian 362000, P. R. China
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14
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Rahoui N, Jiang B, Taloub N, Huang YD. Spatio-temporal control strategy of drug delivery systems based nano structures. J Control Release 2017; 255:176-201. [DOI: 10.1016/j.jconrel.2017.04.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 12/21/2022]
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15
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Chen L, Feng Y, Zhou X, Zhang Q, Nie W, Wang W, Zhang Y, He C. One-Pot Synthesis of MoS 2 Nanoflakes with Desirable Degradability for Photothermal Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17347-17358. [PMID: 28471183 DOI: 10.1021/acsami.7b02657] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Developing biodegradable photothermal agent holds great significance for potential clinical translation of photothermal therapy. In the current study, one-pot hydrothermal synthesis of MoS2 nanoflakes with desirable degradation capability was presented. The participation of poly(acrylic acid) (PAA) in hydrothermal process could not only facilitate the modification of polyethylene glycol (PEG), but also bestow degradability to the prepared MoS2 nanoflakes. Moreover, the PEGylated hybrid nanoflakes (MoS2-PPEG) also exhibited excellent stability in various medium and outstanding photothermal properties. Interestingly, MoS2-PPEG behaved distinctly different degradation rate in diverse condition. The rapid degradation of MoS2-PPEG was observed in neutral pH solution, whereas much slower degradation occurred in an acidic tumor microenvironment. Furthermore, data indicated that the major degradation product of MoS2-PPEG was water-soluble Mo-based ion. Meanwhile, the good in vitro biocompatibility of MoS2-PPEG was also confirmed in terms of cytotoxicity and hemolysis. With favorable photothermal performance, MoS2-PPEG can efficiently killing cancer cells in vitro and suppress the tumor growth in vivo. More importantly, the gradual decreasing content of MoS2-PPEG in organs and detectable Mo element in urine of mice suggested that the degradability of MoS2-PPEG might facilitate its excretion to some degree. Hence, the degradable MoS2 nanoflakes prepared by one-pot hydrothermal routine may provide insight for further biomedical applications of inorganic photothermal agent.
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Affiliation(s)
| | | | - Xiaojun Zhou
- Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital Affiliated Shanghai Jiao Tong University School of Medicine , Shanghai, 200011, China
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16
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Hao Y, Dong M, Zhang T, Peng J, Jia Y, Cao Y, Qian Z. Novel Approach of Using Near-Infrared Responsive PEGylated Gold Nanorod Coated Poly(l-lactide) Microneedles to Enhance the Antitumor Efficiency of Docetaxel-Loaded MPEG-PDLLA Micelles for Treating an A431 Tumor. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15317-15327. [PMID: 28418236 DOI: 10.1021/acsami.7b03604] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The combination of chemotherapy and photothermal therapy (PTT) plays a significant role in synergistic tumor therapy. However, a high dosage of chemotherapy drugs or photothermal agents may cause series side effects. To overcome these challenges, we designed a near-infrared (NIR) responsive PEGylated gold nanorod (GNR-PEG) coated poly(l-lactide) microneedle (PLLA MN) system (GNR-PEG@MN) to enhance antitumor efficiency of docetaxel-loaded MPEG-PDLLA (MPEG-PDLLA-DTX) micelles for treating an A431 tumor. The as-made GNR-PEG@MNs contained only 31.83 ± 1.22 μg of GNR-PEG per patch and exhibited excellent heating efficacy both in vitro and in vivo. Meanwhile, GNR-PEG@MN with the height of 480 μm had good skin insertion ability and was harmless to the skin. On the other hand, GNR-PEG@MN had good heating transfer ability in vivo, and the tumor sites could reach 50 °C within 5 min. In comparison with chemotherapy and PTT alone, the combination of low dosage MPEG-PDLLA-DTX micelles (5 mg/kg) and GNR-PEG@MNs completely eradicated the A431 tumor without recurrence in vivo, demonstrating a remarkable synergetic effect. Hence, GNR-PEG@MN could be a promising carrier to enhance the antitumor effect of MPEG-PDLLA-DTX micelles for treating superficial tumors and is expected to have a great potential in clinical translation for human epidermoid cancer therapy.
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Affiliation(s)
- Ying Hao
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School, Sichuan University , Chengdu 610041, PR China
| | - MingLing Dong
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School, Sichuan University , Chengdu 610041, PR China
| | - TaoYe Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University , Wuhan 430056, PR China
| | - JinRong Peng
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School, Sichuan University , Chengdu 610041, PR China
| | - YanPeng Jia
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School, Sichuan University , Chengdu 610041, PR China
| | - YiPing Cao
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University , Wuhan 430056, PR China
| | - ZhiYong Qian
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, West China Medical School, Sichuan University , Chengdu 610041, PR China
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17
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Delivery systems for antimicrobial peptides. Adv Colloid Interface Sci 2017; 242:17-34. [PMID: 28159168 DOI: 10.1016/j.cis.2017.01.005] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/24/2017] [Accepted: 01/24/2017] [Indexed: 12/18/2022]
Abstract
Due to rapidly increasing resistance development against conventional antibiotics, finding novel approaches for the treatment of infections has emerged as a key health issue. Antimicrobial peptides (AMPs) have attracted interest in this context, and there is by now a considerable literature on the identification such peptides, as well as on their optimization to reach potent antimicrobial and anti-inflammatory effects at simultaneously low toxicity against human cells. In comparison, delivery systems for antimicrobial peptides have attracted considerably less interest. However, such delivery systems are likely to play a key role in the development of potent and safe AMP-based therapeutics, e.g., through reducing chemical or biological degradation of AMPs either in the formulation or after administration, by reducing adverse side-effects, by controlling AMP release rate, by promoting biofilm penetration, or through achieving co-localization with intracellular pathogens. Here, an overview is provided of the current understanding of delivery systems for antimicrobial peptides, with special focus on AMP-carrier interactions, as well as consequences of these interactions for antimicrobial and related biological effects of AMP-containing formulations.
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18
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Zhu R, Gao F, Piao JG, Yang L. Skin-safe photothermal therapy enabled by responsive release of acid-activated membrane-disruptive polymer from polydopamine nanoparticle upon very low laser irradiation. Biomater Sci 2017; 5:1596-1602. [DOI: 10.1039/c7bm00256d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
How to ablate tumor without damaging skin is a challenge for photothermal therapy.
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Affiliation(s)
- Rui Zhu
- CAS Key Laboratory of Soft Matter Chemistry
- University of Science and Technology of China
- Hefei
- China
- School of Chemistry and Materials Science
| | - Feng Gao
- CAS Key Laboratory of Soft Matter Chemistry
- University of Science and Technology of China
- Hefei
- China
- School of Chemistry and Materials Science
| | - Ji-Gang Piao
- CAS Key Laboratory of Soft Matter Chemistry
- University of Science and Technology of China
- Hefei
- China
- School of Chemistry and Materials Science
| | - Lihua Yang
- CAS Key Laboratory of Soft Matter Chemistry
- University of Science and Technology of China
- Hefei
- China
- School of Chemistry and Materials Science
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19
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Avvakumova S, Galbiati E, Sironi L, Locarno SA, Gambini L, Macchi C, Pandolfi L, Ruscica M, Magni P, Collini M, Colombo M, Corsi F, Chirico G, Romeo S, Prosperi D. Theranostic Nanocages for Imaging and Photothermal Therapy of Prostate Cancer Cells by Active Targeting of Neuropeptide-Y Receptor. Bioconjug Chem 2016; 27:2911-2922. [DOI: 10.1021/acs.bioconjchem.6b00568] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | | | - Silvia A. Locarno
- Università degli Studi di Milano, Dipartimento di
Scienze Farmaceutiche, via Mangiagalli 25, 20133, Milano, Italy
| | - Luca Gambini
- Università degli Studi di Milano, Dipartimento di
Scienze Farmaceutiche, via Mangiagalli 25, 20133, Milano, Italy
| | - Chiara Macchi
- Università degli Studi di Milano, Dipartimento di
Scienze Farmacologiche e Biomolecolari, via Balzaretti 9, 20133, Milano, Italy
| | | | - Massimiliano Ruscica
- Università degli Studi di Milano, Dipartimento di
Scienze Farmacologiche e Biomolecolari, via Balzaretti 9, 20133, Milano, Italy
| | - Paolo Magni
- Università degli Studi di Milano, Dipartimento di
Scienze Farmacologiche e Biomolecolari, via Balzaretti 9, 20133, Milano, Italy
| | | | | | - Fabio Corsi
- Surgery
Department, Breast Unit, ICS Maugeri S.p.A. SB, via S. Maugeri 10, 27100, Pavia, Italy
- Department
of Biomedical and Clinical Sciences L. Sacco, University of Milan, Via. G.B. Grassi 74, 20157, Milano, Italy
| | | | - Sergio Romeo
- Università degli Studi di Milano, Dipartimento di
Scienze Farmaceutiche, via Mangiagalli 25, 20133, Milano, Italy
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20
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Liu D, Ma L, Liu L, Wang L, Liu Y, Jia Q, Guo Q, Zhang G, Zhou J. Polydopamine-Encapsulated Fe3O4 with an Adsorbed HSP70 Inhibitor for Improved Photothermal Inactivation of Bacteria. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24455-24462. [PMID: 27581753 DOI: 10.1021/acsami.6b08119] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Photothermal treatment, a new approach for inactivation of bacteria and pathogens that does not depend on traditional therapeutic approaches, has recently received much attention. In this study, a new type of nanoplatform (PDA@Fe3O4 + PES) was fabricated by using polydopamine (PDA, a photothermal conversion agent) to encapsulate Fe3O4 (a magnetic nanoparticle) and support 2-phenylethynesulfonamide (PES, an inhibitor of heat shock protein 70 (HSP70)). Upon near-infrared light irradiation, the increased temperature weakens π-π and hydrogen bonding interactions, and PES is released from the PDA@Fe3O4 + PES. The released PES inhibits the function of HSP70, reducing bacterial tolerance to photothermal therapy and improving the therapeutic effect against infectious bacterial pathogens. After treatment, PDA@Fe3O4 + PES can be recovered using the magnetic property of the Fe3O4 cores. Consequently, PDA@Fe3O4 + PES possesses the potential to be a recyclable photothermal agent for enhanced photothermal bacterial inactivation without causing secondary pollution.
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Affiliation(s)
- Dongdong Liu
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
- College of Resource Environment, Tourism, Capital Normal University , Beijing 100048, People's Republic of China
| | - Liyi Ma
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Lidong Liu
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Lu Wang
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Yuxin Liu
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Qi Jia
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Quanwei Guo
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Ge Zhang
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
| | - Jing Zhou
- Department of Chemistry, Capital Normal University , Beijing 100048, People's Republic of China
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