1
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Yang XC, Ding Y, Song SN, Wang WH, Huang S, Pang XY, Li B, Yu YY, Xia YM, Gao WW. Biocompatible N-carbazoleacetic acid decorated Cu xO nanoparticles as self-cascading platforms for synergistic single near-infrared triggered phototherapy treating microbial infections. Biomater Sci 2024; 12:1558-1572. [PMID: 38305728 DOI: 10.1039/d3bm01873c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
In this work, positively charged N-carbazoleacetic acid decorated CuxO nanoparticles (CuxO-CAA NPs) as novel biocompatible nanozymes have been successfully prepared through a one-step hydrothermal method. CuxO-CAA can serve as a self-cascading platform through effective GSH-OXD-like and POD-like activities, and the former can induce continuous generation of H2O2 through the catalytic oxidation of overexpressed GSH in the bacterial infection microenvironment, which in turn acts as a substrate for the latter to yield ˙OH via Fenton-like reaction, without introducing exogenous H2O2. Upon NIR irradiation, CuxO-CAA NPs possess a high photothermal conversion effect, which can further improve the enzymatic activity for increasing the production rate of H2O2 and ˙OH. Besides, the photodynamic performance of CuxO-CAA NPs can produce 1O2. The generated ROS and hyperthermia have synergetic effects on bacterial mortality. More importantly, CuxO-CAA NPs are more stable and biosafe than Cu2O, and can generate electrostatic adsorption with negatively charged bacterial cell membranes and accelerate bacterial death. Antibacterial results demonstrate that CuxO-CAA NPs are lethal against methicillin-resistant Staphylococcus aureus (MRSA) and ampicillin-resistant Escherichia coli (AREC) through destroying the bacterial membrane and disrupting the bacterial biofilm formation. MRSA-infected animal wound models show that CuxO-CAA NPs can efficiently promote wound healing without causing toxicity to the organism.
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Affiliation(s)
- Xiao-Chan Yang
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Yong Ding
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Sheng-Nan Song
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Wen-Hui Wang
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shan Huang
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
- The Third Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Xue-Yao Pang
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Bo Li
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Ya-Ya Yu
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Ya-Mu Xia
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Wei-Wei Gao
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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2
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Zhang Y, Tang Y, Liao Q, Qian Y, Zhu L, Yu DG, Xu Y, Lu X, Kim I, Song W. Silver oxide decorated urchin-like microporous organic polymer composites as versatile antibacterial organic coating materials. J Mater Chem B 2024; 12:2054-2069. [PMID: 38305698 DOI: 10.1039/d3tb02619a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Microporous organic polymers (MOPs) and metal oxide hybrid composites are considered valuable coating materials because of their versatility derived from the synergistic combination of MOPs' inherent dispersibility and the distinctive properties of metal oxides. In this study, we present the synthesis of sea-urchin-like MOPs hybridised with silver oxide nanoparticles (Ag2O NPs) to fabricate antibacterial composites suitable for potential antibacterial coating applications. Ag2O NP-decorated urchin-like MOPs (Ag2O@UMOPs) were synthesised by employing a combination of two methods: a one-pot Lewis acid-base interaction-mediated self-assembly and a straightforward impregnation process. The as-prepared Ag2O@UMOPs demonstrated high antibacterial efficacy against both E. coli (G-) and S. aureus (G+). The antibacterial mechanism of Ag2O@UMOPs mainly involved the synergistic effects of accumulation of Ag2O@UMOPs, the release of Ag+ ions, and the generation of reactive oxygen species. The exceptional processability and biosafety of Ag2O@UMOPs make them ideal organic coating materials for convenient application on various substrates. These remarkable features of Ag2O@UMOPs provide an effective platform for potential antibacterial applications in biological sciences.
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Affiliation(s)
- Yu Zhang
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, P. R. China.
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P. R. China
| | - Yunxin Tang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
| | - Qian Liao
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
| | - Yiduo Qian
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, P. R. China.
| | - Linglin Zhu
- Department of Oncology, Huadong Hospital Affiliated to Fudan University, No. 139 Yan An Xi Road, Shanghai, 200040, P. R. China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
| | - Yixin Xu
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, P. R. China.
| | - Xiuhong Lu
- Shanghai Key Laboratory of Molecular Imaging, School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai 201318, P. R. China.
| | - Il Kim
- School of Chemical Engineering, Pusan National University, Busan 46241, Republic of Korea.
| | - Wenliang Song
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
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3
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Wei L, He X, Zhao D, Kandawa-Shultz M, Shao G, Wang Y. Biotin-conjugated Ru(II) complexes with AIE characteristics as mitochondria-targeted photosensitizers for enhancing photodynamic therapy by disrupting cellular redox balance. Eur J Med Chem 2024; 264:115985. [PMID: 38016298 DOI: 10.1016/j.ejmech.2023.115985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/05/2023] [Accepted: 11/19/2023] [Indexed: 11/30/2023]
Abstract
The potential use of Ru(II) complexes as photosensitizers (PSs) in photodynamic therapy (PDT) has gained significant attention. In comparison with fluorophores with aggregation-caused quenching (ACQ), fluorophores with aggregation-induced emission (AIE) characteristics exhibit sustained fluorescence and dispersibility in aqueous solutions. PSs with AIE characteristics have received much attention in recent years. Herein, we reported two novel biotin-conjugated Ru(II) polypyridyl complexes (Ru1 and Ru2) with AIE characteristics. When exposed to 460 nm (10 mW cm-2) light, Ru1 and Ru2 exhibited outstanding photostability and photocatalytic activity. Ru1 and Ru2 could efficiently generate singlet oxygen and induce pUC19 DNA photolysis when exposed to 460 nm light. Interestingly, both Ru1 and Ru2 also functioned as catalysts for NADH oxidation when exposed to 460 nm light. The presence of biotin fragments in Ru1 and Ru2 enhanced the specific uptake of these complexes by tumor cells. Both complexes showed minimal toxicity to selected cells in the dark. Nevertheless, the phototoxicity of both complexes significantly increased upon 460 nm light irradiation for 15 min. Further experiments revealed that Ru2 primarily accumulated in mitochondria and might bind to mitochondrial DNA. Under 460 nm light irradiation, Ru2 induced the generation of reactive oxygen species (ROS) and NADH depletion disrupting intracellular redox homeostasis in A549 cells, activating the mitochondrial apoptosis pathway resulting in up-regulation of apoptotic marker caspase-3, effectively damaged A549 cell DNA and arrested A549 cell cycle in the S phase. In vivo anti-tumor experiments were conducted to assess the effects of Ru2 on tumor growth in A549 tumor-bearing mice. The results showed that Ru2 effectively inhibited tumor growth under 460 nm light irradiation conditions. These findings indicate that Ru2 has great potential as a targeted photosensitizer for mitochondrial targeting imaging and photodynamic therapy of tumors.
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Affiliation(s)
- Lai Wei
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Xiangdong He
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Deming Zhao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Martha Kandawa-Shultz
- Department of Chemistry and Biochemistry, University of Namibia, Windhoek, 13301, Namibia
| | - Guoqiang Shao
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 211166, China.
| | - Yihong Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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4
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Somasundar A, Qin B, Shim S, Bassler BL, Stone HA. Diffusiophoretic Particle Penetration into Bacterial Biofilms. ACS APPLIED MATERIALS & INTERFACES 2023; 15:33263-33272. [PMID: 37400078 PMCID: PMC10360038 DOI: 10.1021/acsami.3c03190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 05/25/2023] [Indexed: 07/05/2023]
Abstract
Bacterial biofilms are communities of cells adhered to surfaces. These communities represent a predominant form of bacterial life on Earth. A defining feature of a biofilm is the three-dimensional extracellular polymer matrix that protects resident cells by acting as a mechanical barrier to the penetration of chemicals, such as antimicrobials. Beyond being recalcitrant to antibiotic treatment, biofilms are notoriously difficult to remove from surfaces. A promising, but relatively underexplored, approach to biofilm control is to disrupt the extracellular polymer matrix by enabling penetration of particles to increase the susceptibility of biofilms to antimicrobials. In this work, we investigate externally imposed chemical gradients as a mechanism to transport polystyrene particles into bacterial biofilms. We show that preconditioning the biofilm with a prewash step using deionized (DI) water is essential for altering the biofilm so it takes up the micro- and nanoparticles by the application of a further chemical gradient created by an electrolyte. Using different particles and chemicals, we document the transport behavior that leads to particle motion into the biofilm and its further reversal out of the biofilm. Our results demonstrate the importance of chemical gradients in disrupting the biofilm matrix and regulating particle transport in crowded macromolecular environments, and suggest potential applications of particle transport and delivery in other physiological systems.
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Affiliation(s)
- Ambika Somasundar
- Department
of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Princeton
Institute for the Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
| | - Boyang Qin
- Department
of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Department
of Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
| | - Suin Shim
- Department
of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Bonnie L. Bassler
- Department
of Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Howard
Hughes Medical Institute, Chevy
Chase, Maryland 20815, United States
| | - Howard A. Stone
- Department
of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
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5
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Huang RW, Song X, Chen S, Yin J, Maity P, Wang J, Shao B, Zhu H, Dong C, Yuan P, Ahmad T, Mohammed OF, Bakr OM. Radioluminescent Cu-Au Metal Nanoclusters: Synthesis and Self-Assembly for Efficient X-ray Scintillation and Imaging. J Am Chem Soc 2023. [PMID: 37335564 DOI: 10.1021/jacs.3c02612] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Zero-dimensional (0D) scintillation materials have drawn tremendous attention due to their inherent advantages in the fabrication of flexible high-energy radiation scintillation screens by solution processes. Although considerable progress has been made in the development of 0D scintillators, such as the current leading lead-halide perovskite nanocrystals and quantum dots, challenges still persist, including potential issues with self-absorption, air stability, and eco-friendliness. Here, we present a strategy to overcome those limitations by synthesis and self-assembly of a new class of scintillators based on metal nanoclusters. We demonstrate the gram-scale synthesis of an atomically precise nanocluster with a Cu-Au alloy core exhibiting high phosphorescence quantum yield, aggregation-induced emission enhancement (AIEE) behavior, and intense radioluminescence. By controlling solvent interactions, the AIEE-active nanoclusters were self-assembled into submicron spherical superparticles in solution, which we exploited as a novel building block for flexible particle-deposited scintillation films with high-resolution X-ray imaging performance. This work reveals metal nanoclusters and their self-assembled superstructures as a promising class of scintillators for practical applications in high-energy radiation detection and imaging.
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Affiliation(s)
- Ren-Wu Huang
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Green Catalysis Center, College of Chemistry, Henan International Joint Laboratory of Tumor Theranostic Cluster Materials, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Song
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Shulin Chen
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jun Yin
- Department of Applied Physics, The Hong Kong Ploytechnic University, Hung Hom, Kowloon 999077, Hong Kong, P. R. China
| | - Partha Maity
- Advanced Membranes and Porous Materials Center (AMPMC) & KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jiayi Wang
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Bingyao Shao
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Hongwei Zhu
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Chunwei Dong
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Peng Yuan
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Taimoor Ahmad
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar F Mohammed
- Advanced Membranes and Porous Materials Center (AMPMC) & KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
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6
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Dou L, Li Q, Bai Y, Kou J, Wang X, Zhao Q, Yu X, Wen K, Wang Z, Shen J, Yu W. How Exactly Do AIEgens Target Bacteria? Leveraging the Targeting Mechanism to Design Sensitive Fluorescent Immunosensors. Anal Chem 2023; 95:5223-5231. [PMID: 36920169 DOI: 10.1021/acs.analchem.2c04983] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Aggregation-induced emission luminogens (AIEgens) are promising candidates for bacterial imaging and detection because they can "Light-Up" pathogenic bacteria without complicated labeling or washing steps. However, there have been few in-depth analyses of the intrinsic mechanism underlying their utility as fluorescence probes for targeting bacteria. Therefore, using large-scale molecular dynamics simulations, we investigated the mechanism of their bacterial "Light-Up" behavior with N,N-diphenyl-4-(7-(pyridin-4-yl)benzo[c][1,2,5]thiadiazol-4-yl) aniline functionalized with 1-bromoethane (TBP-1). We propose that the triphenylamine motif of TBP-1, rather than the positively charged pyridine group, first contacts the cell membrane. After TBP-1 completely inserts into the cell membrane, the hydrophobic triphenylamine motif localizes in the hydrophobic core of the cell membrane, restricting the molecular variation of TBP-1, which induces the fluorescent "turn-on" and bacterial "Light-Up." On this basis, we established a heterogeneous lateral flow immunoassay (LFIA) for the detection of foodborne pathogens. The LFIA system showed improved sensitivity with a limit of detection as low as 103 CFU mL-1 and strong specificity. Our protocol opened an effective shortcut to the design of more efficient AIEgens and novel AIEgens-based immunoassays.
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Affiliation(s)
- Leina Dou
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Qing Li
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Yuchen Bai
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Jiaqian Kou
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Xiaonan Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Qian Zhao
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Xuezhi Yu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Kai Wen
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Zhanhui Wang
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Jianzhong Shen
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Wenbo Yu
- National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
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7
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Feng Q, Xu J, Zhuang C, Xiong J, Wang H, Xiao K. Mitochondria-Targeting and Multiresponsive Nanoplatform Based on AIEgens for Synergistic Chemo-Photodynamic Therapy and Enhanced Immunotherapy. Biomacromolecules 2023; 24:977-990. [PMID: 36703538 DOI: 10.1021/acs.biomac.2c01416] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Although photodynamic therapy (PDT) has become an attractive strategy for cancer treatment, its clinical application still suffers from some limitations, including insufficient delivery of photosensitizers, hypoxic tumor environment, and the development of PDT resistance. To address these limitations, a new class of mitochondria-targeting and fluorinated polymer with aggregation-induced emission characteristics was fabricated to sensitize PDT and co-deliver chemotherapeutic drugs. The amphiphilic fluoropolymer was able to efficiently carry oxygen and SN-38 (the active metabolite of irinotecan) and self-assemble into multifunctional micellar nanoparticles (SN-38-TTCF@O2 NPs). Upon internalization into tumor cells, these NPs could successfully escape lysosomes, selectively target mitochondria, efficiently produce reactive oxygen species (ROS) under light irradiation, and release drugs in response to ROS. In the HCT116 tumor xenograft model, they preferentially accumulated in tumor tissue and significantly alleviated tumor hypoxia, resulting in synergistic chemo-PDT efficacy without distinct toxicity. Furthermore, the nanoscale chemo-PDT induced immunogenic cell death, promoted the recruitment and activation of cytotoxic T lymphocytes, and ultimately augmented the anti-tumor efficacy of anti-PD-1 antibody in the murine CT26 tumor model. These results may provide novel insights into the development of efficient chemo-PDT nanomedicine to improve the outcome of immunotherapy.
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Affiliation(s)
- Qiyi Feng
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Junhuai Xu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Cheng Zhuang
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Junjie Xiong
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Haibo Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Kai Xiao
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, P. R. China.,Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
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8
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Lin X, Duan Y, Lan Q, Xu Y, Xia Y, Huang Z, Song L, Zhang Y, Guo N. Alginate-Based Cryogels for Combined Chemo/Photothermal Antibacterial Therapy and Rapid Hemostasis. ACS OMEGA 2023; 8:4889-4898. [PMID: 36777611 PMCID: PMC9909789 DOI: 10.1021/acsomega.2c07170] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/26/2022] [Indexed: 06/18/2023]
Abstract
As novel wound dressings, cryogels with rapid hemostatic property and good sterilization effect are urgently desirable for wound healing. To reduce the use of antibiotics, antibacterial photothermal therapy with broad-spectrum bactericidal capacity and non-obvious bacterial resistance has been widely researched. However, photothermal agents usually suffer from poor hemostatic ability. In this research, sodium alginate (SA) and epigallocatechin gallate (EGCG) were non-covalently cross-linked in suit by ferric ions to obtain SA/EGCG/Fe (SEF) cryogels after lyophilization as an antibacterial wound dressing. Next, its photothermal performance was intensively assessed. Moreover, its hemostasis and bactericidal effect were evaluated. First, it displayed extraordinary photothermal ability owing to the formation of Fe3+/EGCG-based metal phenolic networks (MPNs) inside the SEF cryogel. Furthermore, in vitro and in vivo assays illustrated that it exhibits rapid hemostatic capacity owing to its high porosity and MPN-mediated cell adhesion capacity. In conclusion, the SEF cryogel manifests satisfactory hemostatic and bactericidal properties. Therefore, it is a promising wound-dressing candidate for clinical applications.
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Affiliation(s)
- Xiao Lin
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Yuxi Duan
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Qian Lan
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Yueying Xu
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Yu Xia
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Zhuoyi Huang
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Lijun Song
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
| | - Yang Zhang
- South
China Institute of Collaborative Innovation, Dongguan523808, China
- Guangdong
Dongguan Quality Supervision Testing Center, Dongguan523808, China
| | - Ning Guo
- School
of Pharmacy, Institute of Traditional Chinese Medicine and New Pharmacy
Development, Guangdong Medical University, Dongguan523808, China
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9
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Zhou L, Chen L, Chen S, Pu Z, Gu M, Shen Y. Highly Efficient Photodynamic Therapy with Mitochondria-Targeting Aggregation-Induced Emission Photosensitizer for Retinoblastoma. Adv Healthc Mater 2023; 12:e2202219. [PMID: 36271734 DOI: 10.1002/adhm.202202219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/17/2022] [Indexed: 01/26/2023]
Abstract
Retinoblastoma (RB) is an aggressive eye cancer in infancy and childhood, lethal by metastasis if left untreated. Currently, the survival rate and the chance of saving vision depend on the severity of the disease. In this work, a highly efficient photodynamic ophthalmic therapy for RB is reported by employing an isoquinolinium-based aggregation-induced-emission (AIE) photosensitizer (PS) TPE-IQ-2O for photodynamic inactivation (PDI). TPE-IQ-2O is an efficient mitochondria-targeting photosensitizer as an efficient guided photodynamic therapy (PDT) agent against cancer cells. Maximizing cancer-selectively damage to tumors with minimized side effects on normal tissue is essential for effective anticancer PDT and provides long-lasting protection against metastasis. In addition, TPE-IQ-2O can effectively reduce the degree of tissue inflammation by inhibiting the expression of related inflammatory factors. TPE-IQ-2O also exhibits excellent biocompatibility with a neglectable hemolysis effect on mouse red blood cells and almost no killing effect on mammalian cells, which enables its potential applications in the treatment of RB.
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Affiliation(s)
- Lingbo Zhou
- Eye Center, Wuhan University Renmin Hospital, Frontier Science Center for Immunology and Metabolism, and Medical Research Institute at School of Medicine, Wuhan University, Wuhan, Hubei, 430060, China
| | - Luojia Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Sijie Chen
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institute, Hong Kong, 999077, China
| | - Zeyuan Pu
- Eye Center, Wuhan University Renmin Hospital, Frontier Science Center for Immunology and Metabolism, and Medical Research Institute at School of Medicine, Wuhan University, Wuhan, Hubei, 430060, China
| | - Meijia Gu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Yin Shen
- Eye Center, Wuhan University Renmin Hospital, Frontier Science Center for Immunology and Metabolism, and Medical Research Institute at School of Medicine, Wuhan University, Wuhan, Hubei, 430060, China
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10
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Xu Y, Cai Y, Xia Y, Wu Q, Li M, Guo N, Tu Y, Yang B, Liu Y. Photothermal nanoagent for anti-inflammation through macrophage repolarization following antibacterial therapy. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Yu QH, Huang R, Wu KY, Han XL, Cheng YJ, Liu WL, Zhang AQ, Qin SY. Infection-activated lipopeptide nanotherapeutics with adaptable geometrical morphology for in vivo bacterial ablation. Acta Biomater 2022; 154:359-373. [PMID: 36191775 DOI: 10.1016/j.actbio.2022.09.067] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/30/2022] [Accepted: 09/26/2022] [Indexed: 12/14/2022]
Abstract
The nonselective membrane disruption of antimicrobial peptides (AMPs) helps in combating the antibacterial resistance. But their overall positive charges lead to undesirable hemolysis and toxicity toward normal living cells, as well as the rapid clearance from blood circulation. In consequence, developing smart AMPs to optimize the antimicrobial outcomes is highly urgent. Relying on the local acidity of microbial infection sites, in this work, we designed an acidity-triggered charge reversal nanotherapeutics with adaptable geometrical morphology for bacterial targeting and optimized therapy. C16-A3K4-CONH2 was proposed and the ε-amino groups in lysine residues were acylated by dimethylmaleic amide (DMA), enabling the generated C16-A3K4(DMA)-CONH2 to self-assemble into negatively charged spherical nanostructure, which relieved the protein adsorption and prolonged blood circulation in vivo. After the access of C16-A3K4(DMA)-CONH2 into the microbial infection sites, acid-sensitive β-carboxylic amide would hydrolyze to regenerate the positive C16-A3K4-CONH2 to destabilize the negatively charged bacterial membrane. In the meanwhile, attractively, the self-assembled spherical nanoparticle transformed to rod-like nanostructure, which was in favor of the efficient binding with bacterial membranes due to the larger contact area. Our results showed that the acid-activated AMP nanotherapeutics exhibited strong and broad-spectrum antimicrobial activities against Yeast, Gram-positive Staphylococcus aureus, Gram-negative Escherichia coli, and methicillin-resistant Staphylococcus aureus (MRSA). Moreover, the biocompatible lipopeptide nanotherapeutics dramatically improved the dermapostasis caused by bacterial infection. The strategy of merging pathology-activated therapeutic function and morphological adaptation to augment therapeutic outcomes shows the great potential for bacterial inhibition. STATEMENT OF SIGNIFICANCE: The overall positive charges of antimicrobial peptides (AMPs) lead to undesirable hemolysis and nonselective toxicity, as well as the rapid clearance from blood circulation. Infection-activated lipopeptide nanotherapeutics with adaptable geometrical morphology were developed to address these issues. The self-assembled lipopeptide was pre-decorated to reverse the positive charge to reduce the hemolysis and nonselective cytotoxicity. After accessing the acidic infection sites, the nanotherapeutics recovered the positive charge to destabilize negatively charged bacterial membranes. Meanwhile, the morphology of self-assembled nanotherapeutics transformed from spherical nanoparticles to rod-like nanostructures in the lesion site, facilitating the improved association with bacterial membranes to boost the therapeutic efficiency. These results provide new design rationale for AMPs developed for bacterial inhibition.
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Affiliation(s)
- Qi-Hang Yu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan, 430074, China
| | - Rong Huang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Kai-Yue Wu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Xiao-Le Han
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan, 430074, China
| | - Yin-Jia Cheng
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan, 430074, China
| | - Wen-Long Liu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan, 430074, China
| | - Ai-Qing Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan, 430074, China
| | - Si-Yong Qin
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan, 430074, China.
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12
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Xin L, Zhang C, Chen J, Jiang Y, Liu Y, Jin P, Wang X, Wang G, Huang P. Ultrasound-Activatable Phase-Shift Nanoparticle as a Targeting Antibacterial Agent for Efficient Eradication of Pseudomonas aeruginosa Biofilms. ACS APPLIED MATERIALS & INTERFACES 2022; 14:47420-47431. [PMID: 36222290 DOI: 10.1021/acsami.2c13166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Biofilms are physical barriers composed of extracellular polymeric substances (EPS) that enable planktonic bacteria to resist host responses and antibacterial treatments, complicating efforts to clear bacteria such as Pseudomonas aeruginosa (P. aeruginosa) and thereby contributing to persistently chronic infections. As such, it is critical to develop a robust antimicrobial strategy capable of effectively eradicating P. aeruginosa biofilms and to further address aggressive clinical infection. In this study, ultrasound-activatable targeted nanoparticles were designed by using poly(lactic-co-glycolic acid) (PLGA) nanoparticles to encapsulate phase-transformable perfluoropentane (PFP) and the antibiotic meropenem via a double emulsion approach, followed by conjugation with anti-P. aeruginosa antibodies. In this strategy, ultrasound exposure can trigger PFP to produce microbubbles, inducing ultrasonic cavitation effects that can disrupt EPS components and allow nanoparticles to release meropenem to kill P. aeruginosa directly and accelerate the associated wound healing. These nanoparticles eradicated biofilms effectively and cleared bacteria in vitro as well as exhibited potent anti-infective activity in vivo. In summary, this study demonstrates the efficacy of a sonobactericidal strategy as a means of effectively and reliably eliminating biofilms.
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Affiliation(s)
- Lei Xin
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Chao Zhang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Jifan Chen
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Yifan Jiang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Yajing Liu
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Peile Jin
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Xue Wang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
| | - Guowei Wang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou311215, China
| | - Pintong Huang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou310009, China
- Research Center for Life Science and Human Health, Binjiang Institute of Zhejiang University, Hangzhou310053, China
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13
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Zeng JY, Wang XS, Sun YX, Zhang XZ. Research progress in AIE-based crystalline porous materials for biomedical applications. Biomaterials 2022; 286:121583. [DOI: 10.1016/j.biomaterials.2022.121583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/04/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
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14
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CHEN CHAOTSEN, Singh R, Chen DG, Wang CH, Wu CC, Hsu CH, Wu CH, Lai TY, Chou PT. Tuning intramolecular charge transfer and spin-orbit coupling of AIE-active type-I photosensitizers for photodynamic therapy. J Mater Chem B 2022; 10:6228-6236. [DOI: 10.1039/d2tb01224c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of photosensitizers (PSs) featuring Type-I reactive oxygen species (ROS) with aggregation-induced emission (AIE) properties is a judicious approach to overcome the deficit of conventional photodynamic therapy (PDT). However, it...
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