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Kong X, Chen H, Li F, Zhang F, Jiang Y, Song J, Sun Y, Zhao B, Shi J. Three-dimension chitosan hydrogel loading melanin composite nanoparticles for wound healing by anti-bacteria, immune activation and macrophage autophagy promotion. Int J Biol Macromol 2023; 237:124176. [PMID: 37023589 DOI: 10.1016/j.ijbiomac.2023.124176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 04/08/2023]
Abstract
Application of Combined photodynamic therapy (PDT) and photothermal therapy (PTT) has become one of the most promising strategy to replace antibiotics and avoid the epidemic of drug-resistant strains during wound healing. However, high amount of reactive oxygen species (ROS) and high temperature cause severe stress response to normal tissues, leading to potential risks of wound healing. Herein, a three-dimension chitosan hydrogel melanin-glycine-C60 nanoparticles (MGC NPs) were prepared to realized effective anti-bacterial activity, immune activation and macrophage autophagy promotion in three-dimensional wound space without triggering stress response. MGC NP is a composite polymer material composed of natural melanin polymer, oligopeptide and carbon-based material, which showed excellent biological safety. By regulating the peptide length between melanin and C60 and nanoparticle content, a high ROS/heat environment at the upper wound site and a low ROS/heat environment at the lower region adjacent to the wound tissue were established to obtain a three-dimension hydrogel with precise PDT and PTT efficiency in different regions. Highly effective PDT/PTT was used to kill microorganisms in upper region, thus providing a barrier to reduce microbial infection. Mild PDT/PTT in lower region promoted the polarization of M1 macrophage to M2 macrophage and activated autophagy of M2 macrophages, regulating the immune microenvironment and promoting wound repair. In conclusion, the novel three-dimensional PDT/PTT therapy based on natural macromolecules proposed in this study accelerates wound healing through dual pathways on the premise of avoiding wound stress response, which is of great significance for the development of clinical strategies for phototherapy.
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Affiliation(s)
- Xiaoying Kong
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Haoyu Chen
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Fuqiang Li
- Department of Physics, Pukyong National University, Busan 48513, South Korea
| | - Fenglan Zhang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Yuping Jiang
- School of medicine and pharmacy, Ocean University of China, No. 5 Yushan road, Qingdao, China
| | - Junyao Song
- Bassars college of future agricultural science and technology, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China
| | - Yuanliang Sun
- Department of Spine Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu road, Qingdao, China.
| | - Bin Zhao
- Qingdao Shenkang Stem Cell Biotechnology Co., Ltd, Qingdao, China.
| | - Jinsheng Shi
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao, China; Department of public course teaching, University of Health and Rehabilitation Sciences, Oingdao, China.
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Du T, Xiao Z, Zhang G, Wei L, Cao J, Zhang Z, Li X, Song Z, Wang W, Liu J, Du X, Wang S. An injectable multifunctional hydrogel for eradication of bacterial biofilms and wound healing. Acta Biomater 2023; 161:112-133. [PMID: 36907234 DOI: 10.1016/j.actbio.2023.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023]
Abstract
Wound treatment is largely influenced by pre-existing hypoxic microenvironments and biofilms, which can severely diminish the efficacy of phototherapy, suggesting the importance of multifunctional nanoplatforms for synergistic treatment of wound infections. Here, we developed a multifunctional injectable hydrogel (PSPG hydrogel) by loading photothermal sensitive sodium nitroprusside (SNP) into Pt-modified porphyrin metal organic framework (PCN) and in situ modification of gold particles to form a near-infrared (NIR) light-triggered all-in-one phototherapeutic nanoplatform. The Pt-modified nanoplatform exhibits a remarkable catalase-like behavior and promotes the continuous decomposition of endogenous H2O2 into O2, thereby enhancing the photodynamic therapy (PDT) effect under hypoxia. Under dual NIR irradiation, PSPG hydrogel can not only produce hyperthermia (η=89.21%) but also generate reactive oxygen species and trigger NO release, contributing jointly to removal of biofilms and disruption of the cell membranes of methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli). In vivo experiments demonstrated a 99.9% reduction in bacterial burden on wounds. Additionally, PSPG hydrogel can accelerate MRSA-infected and Pseudomonas aeruginosa-infected (P. aeruginosa-infected) wound healing by promoting angiogenesis, collagen deposition, and suppressing inflammatory responses. Furthermore, in vitro and in vivo experiments revealed that PSPG hydrogel has good cytocompatibility. Overall, we proposed an antimicrobial strategy to eliminate bacteria through the synergistic effects of gas-photodynamic-photothermal killing, alleviating hypoxia in the bacterial infection microenvironment, and inhibiting biofilms, offering a new way against antimicrobial resistance and biofilm-associated infections. STATEMENT OF SIGNIFICANCE: The NIR light-triggered multifunctional injectable hydrogel nanoplatform (PSPG hydrogel) based on Pt-decorated gold nanoparticles with sodium nitroprusside (SNP)-loading porphyrin metal organic framework (PCN) as inner templates can efficiently perform photothermal conversion (η=89.21%) to trigger NO release from SNP, while continuously regulating the hypoxic microenvironment at the bacterial infection site through Pt-induced self-oxygenation, achieving efficient sterilization and removal of biofilm by synergistic PDT and PTT phototherapy. In vivo and in vitro experiments demonstrated that the PSPG hydrogel has significant anti-biofilm, antibacterial, and inflammatory regulatory functions. This study proposed an antimicrobial strategy to eliminate bacteria through the synergistic effects of gas-photodynamic-photothermal killing, alleviating hypoxia in the bacterial infection microenvironment, and inhibiting biofilms.
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Affiliation(s)
- Ting Du
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Zehui Xiao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Guanghui Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Lifei Wei
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Jiangli Cao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Zhannuo Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Xingxing Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Zhiyong Song
- College of Sicence, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wenjing Wang
- College of Sicence, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jifeng Liu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Xinjun Du
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, PR China.
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Qiu Q, Li C, Yan X, Zhang H, Luo X, Gao X, Liu X, Song Y, Deng Y. Photodynamic/ photothermal therapy enhances neutrophil-mediated ibrutinib tumor delivery for potent tumor immunotherapy: More than one plus one? Biomaterials 2021; 269:120652. [PMID: 33450581 DOI: 10.1016/j.biomaterials.2021.120652] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 12/11/2020] [Accepted: 12/31/2020] [Indexed: 12/14/2022]
Abstract
Neutrophil-mediated drug-delivery systems have gained widespread attention owing to their superior efficacy in cancer therapy. Neutrophils, the most abundant white cells in peripheral blood, are known to migrate to inflamed tumors. Here, we elaborate on a novel strategy to enhance tumor infiltration of neutrophils by photodynamic/photothermal therapy (PDT/PTT) to deliver ibrutinib (IBR) nanocomplexes for cancer immunotherapy. DiR-loading liposomes (DiR-lipos) were administered to induce acute inflammation, and sialic acid (SA) derivative-coated IBR-loading nanocomplexes (SA-2@NCs) were fabricated for targeting activated peripheral blood neutrophils (PBNs). This in vitro and in vivo attempt, therefore, proved the hypothesis that inducing acute inflammation via PDT/PTT could facilitate the migration of PBNs, which could deliver SA-2@NCs into the tumor. The enhanced tumor delivery of SA-2@NCs was accompanied by enhanced antitumor T-cell immune responses in a mouse orthotopic breast cancer model. Our findings indicate that the combination of IBR-mediated immunotherapy with DiR-mediated PDT/PTT bring together two leading novel strategies, taking advantage of their synergistic mechanisms of action for a potent anti-tumor efficacy for breast cancer therapy.
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Affiliation(s)
- Qiujun Qiu
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Cong Li
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Xinyang Yan
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Hongxia Zhang
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Xiang Luo
- College of Chemistry and Chemical Engineering, Shaoxing University, No. 508 Huancheng West Road, Shaoxing, Zhejiang Province, 312000, PR China.
| | - Xin Gao
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Xinrong Liu
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Yanzhi Song
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
| | - Yihui Deng
- College of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, Liaoning, 110016, PR China.
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