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Xia W, Li J, Cai Q, Deng C, Zhou Z, Yu X, Huang C, Cheng B. Exploring the antibiofilm potential of chitosan nanoparticles by functional modification with chloroquine and deoxyribonuclease. Carbohydr Polym 2025; 347:122726. [PMID: 39486956 DOI: 10.1016/j.carbpol.2024.122726] [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: 04/06/2024] [Revised: 08/26/2024] [Accepted: 09/05/2024] [Indexed: 11/04/2024]
Abstract
Planktonic bacteria tend to form sessile community architectures to shield resident bacteria from various environmental stresses. The formed biofilm leads to the failure of conventional antimicrobial therapy. Extracellular macromolecules, including extracellular DNA (eDNA), proteins, lipids, and polysaccharides, crosslink into gel-like structures through electrostatic forces in the mature biofilm matrix. The stereo-structural integrity and chemical inertia of the extracellular polymeric matrix result in comprehensive antimicrobial resistance to antibacterial polysaccharides. Herein, an ionic gelation method was employed to functionalize cationic chitosan nanoparticles (CSNPs) with chloroquine and deoxyribonuclease. The modification involved shifting eDNA chirality through a DNA-intercalating agent, chloroquine, and hydrolyzing an eDNA scaffold with deoxyribonuclease. The antibiofilm activity was assessed against a standard Staphylococcus aureus strain and clinical subtype isolates. Functional modifications targeting eDNA improved the chitosan anti-biofilm efficiency (residual biomass decreased from 74.2 to 90.3 % to 16.7-24.6 %) by disrupting the biofilm matrix. The functional CSNPs worked as a sensitizer prodrug, contributing to a bactericidal process of chitosan itself (cell wall damage increased from 11.38-18.16 % to 55.2-61.4 %) by dispersing the biofilm-enclosed bacteria. In vivo, the bacterial burden of infected mouse joints was reduced by 4.1 lg CFU/mL. Our results indicate the potential of this chitosan-based anti-infection strategy in biofilm-related infections.
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Affiliation(s)
- Wenyang Xia
- Department of Sports Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jun Li
- Department of Sports Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qiuchen Cai
- Department of Sports Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Changxu Deng
- Department of Sports Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zubin Zhou
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaowei Yu
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chenglong Huang
- Department of Sports Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Biao Cheng
- Department of Sports Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China.
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2
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Yu J, Xu W, Chen H, Yuan H, Wang Y, Qian X, Zhang J, Ji Y, Zhao Q, Li S. Charge Engineering of Star-Shaped Organic Photosensitizers Enables Efficient Type-I Radicals for Photodynamic Therapy of Multidrug-Resistant Bacterial Infection. Adv Healthc Mater 2024:e2402615. [PMID: 39648533 DOI: 10.1002/adhm.202402615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/18/2024] [Indexed: 12/10/2024]
Abstract
Infection induced by multidrug-resistant bacteria is now the second most common cause of accidental death worldwide. However, identifying a high-performance strategy with good efficiency and low toxicity is still urgently needed. Antibacterial photodynamic therapy (PDT) is considered a non-invasive and efficient approach with minimal drug resistance. Whereas, the precise molecular design for highly efficient oxygen-independent type-I photosensitizers is still undefined. In this work, the regulation of the positive charge of star-shaped NIR-emissive organic photosensitizers can boost radical generation for the efficient treatment of wounds infected with multidrug-resistant bacteria. With positive charge engineering, TPAT-DNN, which has six positive charges, mainly produces hydroxyl radicals via the type-I pathway, while TPAT-DN, which has three positive charges, tends to generate singlet oxygen and superoxide radicals. For multidrug-resistant bacteria, TPAT-DNN exhibited specific killing effects on multidrug-resistant gram-positive bacteria at low concentrations, while TPAT-DN is similar antibacterial effects on both multidrug-resistant gram-negative and gram-positive bacteria. Furthermore, the efficiency and safety of TPAT-DNN for eradicating multidrug-resistant bacteria methicillin-resistant S. aureus (MRSA) infection and accelerating wound healing in an MRSA-infected mouse model are demonstrated. This work offers a new approach toward manipulating efficient type-I photosensitizers for MRSA treatment.
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Affiliation(s)
- Jie Yu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Wenchang Xu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Huan Chen
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Haitao Yuan
- Center for Drug Research and Development, Guangdong Provincial Key Laboratory of Advanced Drug Delivery System Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China
| | - Yu Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Xiandie Qian
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Jie Zhang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Yu Ji
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Qi Zhao
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Shengliang Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, P. R. China
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3
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Wang X, Qin X, Liu Y, Fang Y, Meng H, Shen M, Liu L, Huan W, Tian J, Yang YW. Plasmonic Supramolecular Nanozyme-Based Bio-Cockleburs for Synergistic Therapy of Infected Diabetic Wounds. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2411194. [PMID: 39444055 DOI: 10.1002/adma.202411194] [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: 07/30/2024] [Revised: 10/16/2024] [Indexed: 10/25/2024]
Abstract
Diabetic wounds are a major devastating complication of diabetes due to hyperglycemia, bacterial invasion, and persistent inflammation, and the current antibiotic treatments can lead to the emergence of multidrug-resistant bacteria. Herein, a bimetallic nanozyme-based biomimetic bio-cocklebur (GNR@CeO2@GNPs) is designed and synthesized for diabetic wound management by depositing spiky ceria (CeO2) shells and gold nanoparticles (GNPs) on a gold nanorod (GNR) nanoantenna. The plasmonic-enhanced nanozyme catalysis and self-cascade reaction properties simultaneously boost the two-step enzyme-mimicking catalytic activity of GNR@CeO2@GNPs, leading to a significant improvement in overall therapeutic efficacy rather than mere additive effects. Under the glucose activation and 808 nm laser irradiation, GNR@CeO2@GNPs material captures photons and promotes the transfer of hot electrons from GNR and GNPs into CeO2, realizing a "butterfly effect" of consuming local glucose, overcoming the limited antibacterial efficiency of an individual PTT modality, and providing substantial reactive oxygen species. In vitro and in vivo experiments demonstrate the material's exceptional antibacterial and antibiofilm properties against Gram-negative and Gram-positive bacteria, which can reduce inflammation, promote collagen deposition, and facilitate angiogenesis, thereby accelerating wound healing. This study provides a promising new strategy to develop plasmonic-enhanced nanozymes with a catalytic cascade mode for the antibiotic-free synergistic treatment of infected diabetic wounds.
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Affiliation(s)
- Xin Wang
- College of Chemistry and China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
| | - Xudong Qin
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P. R. China
| | - Yi Liu
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P. R. China
| | - Yutong Fang
- College of Chemistry and China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Hao Meng
- College of Chemistry and China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
| | - Meili Shen
- College of Chemistry and China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
| | - Linlin Liu
- College of Chemistry and China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
| | - Weiwei Huan
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, P. R. China
| | - Jian Tian
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, P. R. China
| | - Ying-Wei Yang
- College of Chemistry and China-Japan Union Hospital of Jilin University, Jilin University, Changchun, 130012, P. R. China
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4
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Panáček D, Belza J, Hochvaldová L, Baďura Z, Zoppellaro G, Šrejber M, Malina T, Šedajová V, Paloncýová M, Langer R, Zdražil L, Zeng J, Li L, Zhao E, Chen Z, Xiong Z, Li R, Panáček A, Večeřová R, Kučová P, Kolář M, Otyepka M, Bakandritsos A, Zbořil R. Single Atom Engineered Antibiotics Overcome Bacterial Resistance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2410652. [PMID: 39308225 PMCID: PMC11635910 DOI: 10.1002/adma.202410652] [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: 07/22/2024] [Revised: 09/10/2024] [Indexed: 12/13/2024]
Abstract
The outbreak of antibiotic-resistant bacteria, or "superbugs", poses a global public health hazard due to their resilience against the most effective last-line antibiotics. Identifying potent antibacterial agents capable of evading bacterial resistance mechanisms represents the ultimate defense strategy. This study shows that -the otherwise essential micronutrient- manganese turns into a broad-spectrum potent antibiotic when coordinated with a carboxylated nitrogen-doped graphene. This antibiotic material (termed NGA-Mn) not only inhibits the growth of a wide spectrum of multidrug-resistant bacteria but also heals wounds infected by bacteria in vivo and, most importantly, effectively evades bacterial resistance development. NGA-Mn exhibits up to 25-fold higher cytocompatibility to human cells than its minimum bacterial inhibitory concentration, demonstrating its potential as a next-generation antibacterial agent. Experimental findings suggest that NGA-Mn acts on the outer side of the bacterial cell membrane via a multimolecular collective binding, blocking vital functions in both Gram-positive and Gram-negative bacteria. The results underscore the potential of single-atom engineering toward potent antibiotics, offering simultaneously a long-sought solution for evading drug resistance development while being cytocompatible to human cells.
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Affiliation(s)
- David Panáček
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Jan Belza
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
| | - Lucie Hochvaldová
- Department of Physical ChemistryFaculty of SciencePalacký University Olomouc17. listopadu 1192/12Olomouc771 46Czech Republic
| | - Zdeněk Baďura
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Martin Šrejber
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
| | - Tomáš Malina
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Veronika Šedajová
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
| | - Markéta Paloncýová
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
| | - Rostislav Langer
- IT4InnovationsVŠB‐Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Lukáš Zdražil
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Jianrong Zeng
- Shanghai Synchrotron Radiation FacilityShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201204P. R. China
| | - Lina Li
- Shanghai Synchrotron Radiation FacilityShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201204P. R. China
| | - En Zhao
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityLongpan Road 159Nanjing210037P. R. China
| | - Zupeng Chen
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesInternational Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityLongpan Road 159Nanjing210037P. R. China
| | - Zhiqiang Xiong
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSuzhou Medical CollegeSoochow UniversitySuzhouJiangsu215123P. R. China
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSuzhou Medical CollegeSoochow UniversitySuzhouJiangsu215123P. R. China
| | - Aleš Panáček
- Department of Physical ChemistryFaculty of SciencePalacký University Olomouc17. listopadu 1192/12Olomouc771 46Czech Republic
| | - Renata Večeřová
- Department of MicrobiologyFaculty of Medicine and DentistryPalacký University OlomoucHněvotínská 3Olomouc779 00Czech Republic
| | - Pavla Kučová
- Department of MicrobiologyFaculty of Medicine and DentistryPalacký University OlomoucHněvotínská 3Olomouc779 00Czech Republic
| | - Milan Kolář
- Department of MicrobiologyFaculty of Medicine and DentistryPalacký University OlomoucHněvotínská 3Olomouc779 00Czech Republic
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- IT4InnovationsVŠB‐Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Aristides Bakandritsos
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and MaterialsCzech Advanced Technology and Research Institute (CATRIN)Palacký University OlomoucŠlechtitelů 241/27Olomouc‐Holice783 71Czech Republic
- Nanotechnology CentreCentre for Energy and Environmental TechnologiesVŠB–Technical University of Ostrava17. listopadu 2172/15Ostrava‐Poruba708 00Czech Republic
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5
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Gong X, Han Y, Wang T, Song G, Chen H, Tang H, Huang X, Deng K, Wang S, Wang Y. Cell-Penetrating Peptide Induced Superstructures Triggering Highly Efficient Antibacterial Activity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2414357. [PMID: 39600036 DOI: 10.1002/adma.202414357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2024] [Revised: 11/13/2024] [Indexed: 11/29/2024]
Abstract
To endow non-antibacterial molecules with highly efficient bactericide activity is an important but challenging issue. Herein, a kind of cell-penetrating peptide octa-arginine (R8) is found to be effective in activating antibacterial ability when assembling with anionic surfactant sodium dodecyl sulfate (SDS), while individual R8 or SDS shows poor or no antibacterial ability. By combined electrostatic, hydrogen bond, and hydrophobic interactions, R8 and SDS associate into wormlike micelle and lamellar structure by forming supramolecular self-assembling units, depending on their charge ratio (CR). The lamellar aggregates show particularly high antibacterial activities against both Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus). Interestingly, E. coli and S. aureus are killed by membrane-disrupting and membrane-penetrating mechanisms, respectively. Furthermore, in vivo experiments evidence that the R8/SDS lamellar aggregates accelerate the recovery of bacteria-infected wounds, wherein the reduced inflammation and promoted angiogenesis are clearly presented. This study proves that highly efficient bactericidal activity is triggered by the synergistic action of penetrating peptide and anionic amphiphiles, thus providing a new strategy to realize highly efficient and targetable antibacterial application.
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Affiliation(s)
- Xuefeng Gong
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuchun Han
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Tengda Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Suzhou Institute for Advanced Research, School of Nanoscience and Nanotechnology, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
| | - Gang Song
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongling Chen
- Procter & Gamble Technology (Beijing) Co., Ltd., No. 35 Yu'an Road, Beijing, 101312, P. R. China
| | - Haiqiu Tang
- Procter & Gamble Technology (Beijing) Co., Ltd., No. 35 Yu'an Road, Beijing, 101312, P. R. China
| | - Xu Huang
- Procter & Gamble Technology (Beijing) Co., Ltd., No. 35 Yu'an Road, Beijing, 101312, P. R. China
| | - Ke Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, P. R. China
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yilin Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Suzhou Institute for Advanced Research, School of Nanoscience and Nanotechnology, University of Science and Technology of China, Suzhou, Jiangsu, 215123, P. R. China
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6
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Chen G, Liu X, Liu H, Liang S, Sun S, Han M, Ji S. Quaternary Ammonium Salt Derivatives of Hyperbranched Polylysine with Enhanced Antibacterial Activity against Multidrug-Resistant Gram-Negative Bacteria. ACS APPLIED BIO MATERIALS 2024; 7:7444-7452. [PMID: 39475495 DOI: 10.1021/acsabm.4c01056] [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] [Indexed: 11/19/2024]
Abstract
Multidrug-resistant (MDR) Gram-negative bacteria infections have gradually become a more serious health problem recently, and antibacterial drugs are urgently needed to tackle MDR Gram-negative bacteria. Herein, we synthesized a series of quaternary ammonium salt derivatives of hyperbranched polylysine (HPL-Cm-n) with different alkyl chain lengths (m = 4, 8, 12, 16) and grafting ratios (n = 5.8-21.0) of alkyl quaternary ammonium salts (Cm). HPL-Cm-ns exhibited excellent antibacterial activities against drug-sensitive E. coli and P. aeruginosa, and specifically, HPL-C12-ns were also highly active against MDR E. coli and P. aeruginosa. The cytotoxicity and hemolytic activity of HPL-Cm-ns increased with the increase in the alkyl chain length and the grafting ratio of Cm. The killing study proved that HPL-C12-9.5 had fast killing kinetics and was bactericidal toward both drug-sensitive and MDR E. coli. The mechanistic studies showed that, similar to hyperbranched polylysine (HPL), HPL-C12-9.5 killed bacteria by disrupting the cell membranes and causing leakage of the cytoplasmic contents. HPL-C12-ns might have potential as an antibacterial agent to combat MDR Gram-negative bacteria.
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Affiliation(s)
- Guohao Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
- East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xiao Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hui Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Shuhan Liang
- Xi'an Jiaotong Liverpool University, Suzhou 215123, P. R. China
| | - Shuhong Sun
- Delegate Office in Changchun, 5696 Yatai Street, Changchun 130041, P. R. China
| | - Miaomiao Han
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
| | - Shengxiang Ji
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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7
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Han R, Du K, Li S, Zuo M, Jeyakkumar P, Jiang H, Wang L, Hu XY. A guanidiniocarbonyl-pyrrole functionalized cucurbit[7]uril derivative as a cytomembrane disruptor for synergistic antibacterial therapy. J Mater Chem B 2024; 12:11105-11109. [PMID: 39439387 DOI: 10.1039/d4tb01840k] [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: 10/25/2024]
Abstract
The antibiotic resistance of bacterial membranes poses a significant threat to global public health, highlighting the urgent need for novel therapeutic agents and strategies to combat bacterial membranes. In response, we have developed a novel macrocyclic host molecule (GCPCB) based on guanidiniocarbonyl-pyrrole (GCP) functionalized cucurbit[7]uril with an aggregation-induced luminescence effect. GCPCB exhibits high antimicrobial potency against bacterial membranes, particularly demonstrating strong antibacterial activity against Gram-positive strains of S. aureus and Gram-negative strains of E. coli. Significantly, due to the strong binding between GCP and the bacterial membrane, GCPCB can effectively eradicate the bacteria encapsulated within. Furthermore, the formation of a host-guest complex between GCPCB and berberine hydrochloride (BH) not only enhances synergistic destructive activity against both species of bacteria but also provides a potential supramolecular platform for effective bacterial membrane destruction.
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Affiliation(s)
- Ruixue Han
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Kehan Du
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Shengke Li
- Macao Centre for Research and Development in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Minzan Zuo
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Ponmani Jeyakkumar
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
| | - Hao Jiang
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
| | - Leyong Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiao-Yu Hu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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8
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Vasudevan D, Sangeetha D. Blends of Silk Waste Protein and Polysaccharides for Enhanced Wound Healing and Tissue Regeneration: Mechanisms, Applications, and Future Perspectives. ACS OMEGA 2024; 9:44101-44119. [PMID: 39524672 PMCID: PMC11541511 DOI: 10.1021/acsomega.4c06518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 09/11/2024] [Accepted: 09/17/2024] [Indexed: 11/16/2024]
Abstract
Wound healing is a highly sophisticated process, and therefore, a pioneering approach for designing excellent wound dressings with desirable characteristics vital for maintaining the external wound environment by assessing the inherent conditions of a patient for effective wound healing. Silk fibroin (SF), a versatile biocompatible material, has garnered significant attention for its potential in the field of wound healing and tissue regeneration. When SF is blended with polysaccharides, their synergistic properties can result in a material with enhanced bioactivity and tunable mechanical properties that facilitate the controlled release of therapeutic agents. This review explores how SF interacts with certain polysaccharides such as cellulose, chitosan, alginate, and hyaluronic acid (HA) and also delves into the underlying mechanisms through which these SF-polysaccharide blends induce processes such as cell adhesion, proliferation, and differentiation for enhanced wound healing and tissue regeneration. This review also emphasizes the potential of the aforementioned blends in diverse wound healing applications in conjunction with other treatment approaches, further addressing the current challenges in this domain and future directions for optimizing SF-polysaccharide blends for clinical research.
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Affiliation(s)
- Devipriya Vasudevan
- Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology, Vellore 632014, Tamil Nadu, India
| | - D. Sangeetha
- Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology, Vellore 632014, Tamil Nadu, India
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9
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Yu G, Wang J, Xiong Q, Xu Y, Xuan S, Leung KCF, Fang Q. Dipolar-hollowed α-Fe 2O 3@Au/Polydopamine nanospindle for photothermal-photodynamic coupling antibacterial and drug-delivery. Int J Biol Macromol 2024; 281:136615. [PMID: 39414200 DOI: 10.1016/j.ijbiomac.2024.136615] [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: 05/31/2024] [Revised: 10/12/2024] [Accepted: 10/14/2024] [Indexed: 10/18/2024]
Abstract
With the prevalence of drug-resistant bacteria and the waning effects of antibiotics, nanoplatform has become an effective strategy for fighting infections. This work reports a dipolar-hollowed α-Fe2O3@Au/Polydopamine (PDA) nanospindle which possesses both photothermal-photodynamic (PTT-PDT) coupling antibacterial and drug carrying performance. Firstly, the spindle type α-Fe2O3@Au/PDA particle was prepared by a simple one-step strategy and then the dipolar-hollow structure was obtained by controlling etching the inside α-Fe2O3 core with hydrochloric acid. After further loading the photosensitizer zinc phthalocyanine (ZnPc), the dipolar-hollowed α-Fe2O3@Au/PDA-ZnPc nanospindles were obtained. Owing to the dipolar-hollowed interior, the nanospindles are also effective in carrying antitumor drug doxorubicin (DOX) and shows a good drug loading-release behavior. The dipolar-hollowed α-Fe2O3@Au/PDA nanospindles exhibits a high antibacterial performance against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) under near-infrared (NIR) and Xenon lamp irradiation. When α-Fe2O3@Au/PDA-ZnPc nanospindles concentration was increased to 100 μg/mL, the antibacterial rate was close to 100 %. In comparison to the original α-Fe2O3@Au/PDA nanospindles, the product achieved a lower effective antibacterial temperature. This triple-mode therapy (PTT/PDT/Drug) provides an interesting design idea for anisotropic therapeutic nanoplatform which can be applied in low-temperature antibacterial and drug delivery.
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Affiliation(s)
- Guangjin Yu
- Department of Chirurgery, Affiliated Hospital 1, Anhui Medical University, Hefei 230032, PR China; Department of Hepatobiliary Surgery, Dongcheng branch of the First Affiliated Hospital of Anhui Medical University (Feidong People's Hospital), Hefei 230027, PR China
| | - Jing Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China; Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Qingshan Xiong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China
| | - Yunqi Xu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China
| | - Shouhu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, PR China; Anhui Provincial Key Laboratory of Aerosol Analysis, Regulation and Biological Effect, Hefei 230000, PR China.
| | - Ken Cham-Fai Leung
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, The Hong Kong Baptist University, Kowloon, Hong Kong.
| | - Qunling Fang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
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10
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Ma Z, Feng Y, Yu Q, Zheng W. Gas-Controlled Self-Assembly of Metallacycle-Cored Supramolecular Star Polymer with Tunable Antibacterial Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2404804. [PMID: 39040003 DOI: 10.1002/smll.202404804] [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: 06/12/2024] [Revised: 07/14/2024] [Indexed: 07/24/2024]
Abstract
Herein, a three-armed amphiphilic metallacycle-cored star supramolecular polymer (Por-MOM-PDMAEMA) has been designed and synthesized via highly efficient post-assembly polymerization. This star polymer is further self-assembled into nanoparticles of different sizes depending upon the experimental conditions. The gas-controlled morphology transformation and tunable antibacterial activities of Por-MOM-PDMAEMAis systematically investigated and compared with metallacycle (MOM). The superior antibacterial activity of Por-MOM-PDMAEMA against multidrug-resistant P. aeruginosa implies that the presence of photodynamic photosensitizer (Por) and cationic polymer chain will significantly enhance antibactericidal activity, which is mainly attributed to the synergistic effect of photosensitizer and polymer chain linked in one metallacycle core. By leveraging the unique properties of metallacycle and their dynamic response to gaseous stimuli, the antibacterial properties of the Por-MOM-PDMAEMA can be finely tuned in response to gas triggers.
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Affiliation(s)
- Zhewen Ma
- Interdisciplinary Materials Research Center, College of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Yuanhao Feng
- Interdisciplinary Materials Research Center, College of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
| | - Qilin Yu
- Key Laboratory of Molecular Microbiology and Technology Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, P. R. China
| | - Wei Zheng
- Interdisciplinary Materials Research Center, College of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China
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11
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Huang Y, Li J, Yu Z, Li J, Liang K, Deng Y. Elaborated Bio-Heterojunction With Robust Sterilization Effect for Infected Tissue Regeneration via Activating Competent Cell-Like Antibacterial Tactic. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2414111. [PMID: 39397342 DOI: 10.1002/adma.202414111] [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: 09/18/2024] [Indexed: 10/15/2024]
Abstract
Phototherapy, such as photothermal therapy (PTT) and photodynamic therapy (PDT) has been a powerful strategy to combat bacterial infection. However, the compact cell membranes of pathogenic bacteria, especially drug-resistant bacteria, significantly diminish the efficiency of heat conduction and impede the entrance of reactive oxygen species (ROS) into cells, resulting in unsatisfactory sterilization. Enlightened by the membrane feature of competent bacteria, herein a MXene/CaO2 bio-heterojunction (MC bio-HJ) is elaborated to achieve rapid disinfection and promote infected tissue regeneration through activating competent cell-like antibacterial tactics. The bio-HJ first compels pathogenic bacteria to become a competent cell-like stage through the coordination of Ca2+ and membrane phospholipid, and potentiates the membrane permeability. Assisted by near infrared (NIR) irradiation, the heat and ROS generated from PTT and PDT of bio-HJ easily pass through bacterial membrane and drastically perturb bacterial metabolism, leading to rapid disinfection. More importantly, employing two in vivo infected model of mice, it have corroborated that the MC bio-HJs not only effectively accelerate MRSA-infected cutaneous regeneration, but also considerably boost osseointegration in an infected bone defect after coating on orthopedic implants. As envisaged, this work demonstrates a novel therapeutic tactic with robust antibacterial effect to remedy infected tissue regeneration through activating competent cell-like stage.
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Affiliation(s)
- Yixuan Huang
- School of Chemical Engineering, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Jialun Li
- School of Chemical Engineering, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
- Department of Cariology and Endodontics, Department of Orthodontics, State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610065, China
| | - Zhaohan Yu
- School of Chemical Engineering, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
- Department of Cariology and Endodontics, Department of Orthodontics, State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610065, China
| | - Jiyao Li
- School of Chemical Engineering, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
- Department of Cariology and Endodontics, Department of Orthodontics, State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610065, China
| | - Kunneng Liang
- School of Chemical Engineering, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
- Department of Cariology and Endodontics, Department of Orthodontics, State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, 610065, China
| | - Yi Deng
- School of Chemical Engineering, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077, China
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12
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Wu D, Du X, Xue Q, Zhou J, Ping K, Cao Y, Liu S, Zhu Q. Supramolecular Porphyrin Photosensitizers Based on Host-Guest Recognition for In Situ Bacteria-Responsive Near-Infrared Photothermal Therapy. Adv Healthc Mater 2024:e2401662. [PMID: 39388515 DOI: 10.1002/adhm.202401662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 09/30/2024] [Indexed: 10/12/2024]
Abstract
Antibiotic resistance resulting from the overuse of antibiotics sets a high challenge for brutal antimicrobial treatment. Although photothermal therapy (PTT) overcomes the awkward situation of antibiotic resistance, it usually mistakenly kills the beneficial bacteria strains when eliminating pernicious bacteria. Specifically recognizing and damaging the target pathogens is urgently required for PTT-mediated sterilization strategy. Based on the host-guest recognition between cucurbit[10]uril (CB[10]) and porphyrins, two water-soluble supramolecular porphyrins are designed and implement selective bactericidal effect via in situ bacteria-responsive near-infrared (NIR) PTT. With the help of CB[10], the π-π stacking and hydrophobic interactions of porphyrins are efficiently inhibited, thus contributing to a good photostability and a high photothermal conversion efficiency. Attributing to the matching reduction potential between facultative anaerobic Escherichia coli (E. coli) and porphyrins, they are selectively in situ reduced into supramolecular phlorin and supramolecular chlorin by E. coli, successfully achieving a selective sterilization against E. coli. In vivo, the in situ bacteria-responsive NIR PTT systems also promote the quick recovery of E. coli-infected abscesses and trauma on mice without inducing obvious systemic toxicity, providing a new alternative to the current antibiotics and helping relieve the global public health crisis of abusive antibiotics.
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Affiliation(s)
- Dan Wu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xianlong Du
- Bethune First Clinical Medical College, Jilin University, Changchun, 130012, P. R. China
| | - Qiangqiang Xue
- Shanxi Provincial Department of Science and Technology, Taiyuan, 030021, P. R. China
| | - Jie Zhou
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Kunmin Ping
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yibin Cao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Shuang Liu
- Emergency Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, P. R. China
| | - Qing Zhu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology Hangzhou, Hangzhou, 310014, P. R. China
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13
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Chen S, Huang B, Tian J, Zhang W. Advancements of Porphyrin-Derived Nanomaterials for Antibacterial Photodynamic Therapy and Biofilm Eradication. Adv Healthc Mater 2024; 13:e2401211. [PMID: 39073000 DOI: 10.1002/adhm.202401211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/17/2024] [Indexed: 07/30/2024]
Abstract
The threat posed by antibiotic-resistant bacteria and the challenge of biofilm formation has highlighted the inadequacies of conventional antibacterial therapies, leading to increased interest in antibacterial photodynamic therapy (aPDT) in recent years. This approach offers advantages such as minimal invasiveness, low systemic toxicity, and notable effectiveness against drug-resistant bacterial strains. Porphyrins and their derivatives, known for their high molar extinction coefficients and singlet oxygen quantum yields, have emerged as crucial photosensitizers in aPDT. However, their practical application is hindered by challenges such as poor water solubility and aggregation-induced quenching. To address these limitations, extensive research has focused on the development of porphyrin-based nanomaterials for aPDT, enhancing the efficacy of photodynamic sterilization and broadening the range of antimicrobial activity. This review provides an overview of various porphyrin-based nanomaterials utilized in aPDT and biofilm eradication in recent years, including porphyrin-loaded inorganic nanoparticles, porphyrin-based polymer assemblies, supramolecular assemblies, metal-organic frameworks (MOFs), and covalent organic frameworks (COFs). Additionally, insights into the prospects of aPDT is offered, highlighting its potential for practical implementation.
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Affiliation(s)
- Suwen Chen
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Baoxuan Huang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Jia Tian
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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14
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Yuan B, Zhang W, Wang H, Xu JF, Zhang X. A BODIPY-Ferrocene Conjugate for the Combined Photodynamic Therapy and Chemodynamic Therapy with Improved Antitumor Efficiency. Chemistry 2024; 30:e202401916. [PMID: 39023507 DOI: 10.1002/chem.202401916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/20/2024]
Abstract
Photodynamic therapy (PDT) can destroy tumor cells by generating singlet oxygen (1O2) under light irradiation, which is limited by the hypoxia of the neoplastic tissue. Chemodynamic therapy (CDT) can produce toxic hydroxyl radical (⋅OH) to eradicate tumor cells by catalytic decomposition of endogenous hydrogen peroxide (H2O2), the therapeutic effect of which is highly dependent on the concentration of H2O2. Herein, we propose a BODIPY-ferrocene conjugate with a balanced 1O2 and ⋅OH generation capacity, which can serve as a high-efficiency antitumor agent by combining PDT and CDT. The ferrocene moieties endow the as-prepared conjugates with the ability of chemodynamic killing of tumor cells. Moreover, combined PDT/CDT therapy with improved antitumor efficiency can be realized after exposure to light irradiation. Compared with the monotherapy by PDT or CDT, the BODIPY-ferrocene conjugates can significantly increase the intracellular ROS levels of the tumor cells after light irradiation, thereby inducing the tumor cell apoptosis at low drug doses. In this way, a synergistic antitumor treatment is achieved by the combination of PDT and CDT.
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Affiliation(s)
- Bin Yuan
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, School of Chemistry and Life Resources, Renmin University of China, Beijing, 100872, China
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Wenhui Zhang
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, School of Chemistry and Life Resources, Renmin University of China, Beijing, 100872, China
| | - Hua Wang
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiang-Fei Xu
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xi Zhang
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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15
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Ouyang X, Li B, Yang T, Yang Y, Ba Z, Zhang J, Yang P, Liu Y, Wang Y, Zhao Y, Mao W, Wu X, Zeng X, Zhong C, Liu H, Zhang Y, Gou S, Ni J. High Therapeutic Index α-Helical AMPs and Their Therapeutic Potential on Bacterial Lung and Skin Wound Infections. ACS Infect Dis 2024; 10:3138-3157. [PMID: 39141008 DOI: 10.1021/acsinfecdis.3c00706] [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] [Indexed: 08/15/2024]
Abstract
Antimicrobial peptides (AMPs) possess strong antibacterial activity and low drug resistance, making them ideal candidates for bactericidal drugs for addressing the issue of traditional antibiotic resistance. In this study, a template (G(XXKK)nI, G = Gly; X = Leu, Ile, Phe, or Trp; n = 2, 3, or 4; K = Lys; I = Ile.) was employed for the devised of a variety of novel α-helical AMPs with a high therapeutic index. The AMP with the highest therapeutic index, WK2, was ultimately chosen following a thorough screening process. It demonstrates broad-spectrum and potent activity against both standard and multidrug-resistant bacteria, while also showing low hemolysis and rapid and efficient time-kill kinetics. Additionally, WK2 exhibits excellent efficacy in treating mouse models of Klebsiella pneumonia-induced lung infections and methicillin-resistant Staphylococcus aureus (MRSA)-induced skin wound infections while demonstrating good safety profiles in vivo. In conclusion, the template-based design methodology for novel AMPs with high therapeutic indices offers new insights into addressing antibiotic resistance problems. WK2 represents a promising antimicrobial agent.
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Affiliation(s)
- Xu Ouyang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Beibei Li
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Tingting Yang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yinyin Yang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zufang Ba
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jingying Zhang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ping Yang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yao Liu
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu Wang
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yuhuan Zhao
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wenbo Mao
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaoyan Wu
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaoxuan Zeng
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Chao Zhong
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing 100050, P. R. China
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hui Liu
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing 100050, P. R. China
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yun Zhang
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing 100050, P. R. China
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Sanhu Gou
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing 100050, P. R. China
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jingman Ni
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, No. 1 Xian Nong Tan Street, Beijing 100050, P. R. China
- Institute of Pharmaceutics, School of Pharmacy, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou 730000, P. R. China
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16
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Duan J, Li B, Liu Y, Han T, Ye F, Xia H, Liu K, He J, Wang X, Cai Q, Meng W, Zhu S. Ultra-Photostable Bacterial-Seeking Near-Infrared CPDs for Simultaneous NIR-II Bioimaging and Antibacterial Therapy. Adv Healthc Mater 2024:e2401131. [PMID: 39225395 DOI: 10.1002/adhm.202401131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/25/2024] [Indexed: 09/04/2024]
Abstract
Bacterial infections can pose significant health risks as they have the potential to cause a range of illnesses. These infections can spread rapidly and lead to complications if not promptly diagnosed and treated. Therefore, it is of great significance to develop a probe to selectively target and image pathogenic bacteria while simultaneously killing them, as there are currently no effective clinical solutions available. This study presents a novel approach using near-infrared carbonized polymer dots (NIR-CPDs) for simultaneous in vivo imaging and treatment of bacterial infections. The core-shell structure of the NIR-CPDs facilitates their incorporation into bacterial cell membranes, leading to an increase in fluorescence brightness and photostability. Significantly, the NIR-CPDs exhibit selective bacterial-targeting properties, specifically identifying Staphylococcus aureus (S. aureus) while sparing Escherichia coli (E. coli). Moreover, under 808 nm laser irradiation, the NIR-CPDs exhibit potent photodynamic effects by generating reactive oxygen species that target and damage bacterial membranes. In vivo experiments on infected mouse models demonstrate not only precise imaging capabilities but also significant therapeutic efficacy, with marked improvements in wound healing. The study provides the dual-functional potential of NIR-CPDs as a highly effective tool for the advancement of medical diagnostics and therapeutics in the fight against bacterial infections.
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Affiliation(s)
- Jingyi Duan
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
- Jilin Provincial Key Laboratory of Science and Technology for Stomatology Nanoengineering, Jilin University, Changchun, 130021, P. R. China
| | - Baosheng Li
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Yanqun Liu
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
- Jilin Provincial Key Laboratory of Science and Technology for Stomatology Nanoengineering, Jilin University, Changchun, 130021, P. R. China
| | - Tianyang Han
- State Key Laboratory of Supramolecular Structure and Materials, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Fengming Ye
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
- Jilin Provincial Key Laboratory of Science and Technology for Stomatology Nanoengineering, Jilin University, Changchun, 130021, P. R. China
| | - Huan Xia
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
- Jilin Provincial Key Laboratory of Science and Technology for Stomatology Nanoengineering, Jilin University, Changchun, 130021, P. R. China
| | - Kaifeng Liu
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, P. R. China
| | - Jie He
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
- Jilin Provincial Key Laboratory of Science and Technology for Stomatology Nanoengineering, Jilin University, Changchun, 130021, P. R. China
| | - Xueke Wang
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
- Jilin Provincial Key Laboratory of Science and Technology for Stomatology Nanoengineering, Jilin University, Changchun, 130021, P. R. China
| | - Qing Cai
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Weiyan Meng
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Shoujun Zhu
- State Key Laboratory of Supramolecular Structure and Materials, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital of Jilin University, Changchun, 130021, P. R. China
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17
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Ji Y, Li J, Chen C, Piao C, Zhou X, Yoon J. Wash-Free Bacterial Gram-Typing and Photodynamic Inactivation with Long-Chain-Tailed BODIPY Derivatives. Biomater Res 2024; 28:0069. [PMID: 39228999 PMCID: PMC11370751 DOI: 10.34133/bmr.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 07/29/2024] [Indexed: 09/05/2024] Open
Abstract
The rapid identification of bacterial Gram types and their viability, as well as efficient bacterial elimination are crucial for managing bacterial infections yet present important challenges. In this research, we utilized long-chain-tailed BODIPY derivatives to address these hurdles. Our data indicated that these derivatives can distinguish bacteria types and their viability in aqueous solutions through a concise turn-on fluorescent response. Among them, B-8 stained both live and dead bacteria, and B-14 offered a wash-free staining. B-18 demonstrated the highest affinity to selectively fluorescent label viable gram-positive bacteria with a 53.2-fold fluorescent enhancement. Confocal imaging confirmed that B-18 can serve as an effective membrane-specific probe for facilitating the typing between gram-negative and gram-positive bacteria in a wash-free manner. Additionally, B-18 displayed selective photodynamic inactivation at 1 μM toward gram-positive bacteria. In vivo studies variformed the ideal photodynamic therapeutic efficacy of B-18 against methicillin-resistant Staphylococcus aureus in mice wound infections.
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Affiliation(s)
- Yuefeng Ji
- College of Agriculture,
Yanbian University, Yanji, 133002, China
| | - Jigai Li
- College of Chemistry and Chemical Engineering,
Qingdao University, Qingdao, 266071, China
| | - Chunping Chen
- College of Agriculture,
Yanbian University, Yanji, 133002, China
| | - Chunxiang Piao
- College of Agriculture,
Yanbian University, Yanji, 133002, China
| | - Xin Zhou
- College of Chemistry and Chemical Engineering,
Qingdao University, Qingdao, 266071, China
| | - Juyoung Yoon
- Department of Chemistry and Nano Science,
Ewha Womans University, Seoul, 120-750, Korea
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18
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Ma M, Luo L, Liu L, Ding Y, Dong Y, Fang B. Synthesis of Coumarin-Based Photosensitizers for Enhanced Antibacterial Type I/II Photodynamic Therapy. Molecules 2024; 29:3793. [PMID: 39202872 PMCID: PMC11357021 DOI: 10.3390/molecules29163793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/17/2024] [Accepted: 08/06/2024] [Indexed: 09/03/2024] Open
Abstract
Photodynamic therapy (PDT) is an effective method for treating microbial infections by leveraging the unique photophysical properties of photosensitizing agents, but issues such as fluorescence quenching and the restricted generation of reactive oxygen species (ROS) under hypoxic conditions still remain. In this study, we successfully synthesized and designed a coumarin-based aggregation-induced emission luminogen (AIEgen), called ICM, that shows a remarkable capacity for type I ROS and type II ROS generation. The 1O2 yield of ICM is 0.839. The ROS it produces include hydroxyl radicals (HO•) and superoxide anions (O2•-), with highly effective antibacterial properties specifically targeting Staphylococcus aureus (a Gram-positive bacterium). Furthermore, ICM enables broad-spectrum fluorescence imaging and exhibits excellent biocompatibility. Consequently, ICM, as a potent type I photosensitizer for eliminating pathogenic microorganisms, represents a promising tool in addressing the threat posed by these pathogens.
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Affiliation(s)
- Min Ma
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (M.M.); (L.L.); (Y.D.); (Y.D.)
| | - Lili Luo
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (M.M.); (L.L.); (Y.D.); (Y.D.)
| | - Libing Liu
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (M.M.); (L.L.); (Y.D.); (Y.D.)
- Key Laboratory of Precision Nutrition and Food Quality, China Agricultural University, Beijing 100193, China
| | - Yuxuan Ding
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (M.M.); (L.L.); (Y.D.); (Y.D.)
| | - Yixuan Dong
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (M.M.); (L.L.); (Y.D.); (Y.D.)
| | - Bing Fang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (M.M.); (L.L.); (Y.D.); (Y.D.)
- Key Laboratory of Precision Nutrition and Food Quality, China Agricultural University, Beijing 100193, China
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19
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Zhang Y, Luo M, Shi X, Li A, Zhou W, Yin Y, Wang H, Wong WL, Feng X, He Q. Pyrgos[ n]cages: Redefining antibacterial strategy against drug resistance. SCIENCE ADVANCES 2024; 10:eadp4872. [PMID: 39058779 PMCID: PMC11277403 DOI: 10.1126/sciadv.adp4872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/24/2024] [Indexed: 07/28/2024]
Abstract
Amid rising antibiotic resistance, the quest for advanced antibacterial agents to surpass microbial adaptation is paramount. This study introduces Pyrgos[n]cages (n = 1 to 4), pioneering multidecker cationic covalent organic cages engineered to combat drug-resistant bacteria via a dual-targeting approach. Synthesized through successive photocatalytic bromination and cage-forming reactions, these architectures stand out for their dense positive charge distribution, exceptional stability, and substantial rigidity. Pyrgos[n]cages exhibit potent bactericidal activity by disrupting bacterial membrane potential and binding to DNA. Notably, these structures show unparalleled success in eradicating both extracellular and intracellular drug-resistant pathogens in diverse infection scenarios, with antibacterial efficiency markedly increasing over 100-fold as the decker number rises from 1 to 3. This study provides an advance in antibacterial tactics and underscores the transformative potential of covalent organic cages in devising enduring countermeasures against antibiotic-resistant microbial threats.
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Affiliation(s)
- Yi Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Miaomiao Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiangling Shi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Aimin Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Wei Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yuyao Yin
- Department of Clinical Laboratory, Peking University People’s Hospital, Beijing 100044, China
| | - Hui Wang
- Department of Clinical Laboratory, Peking University People’s Hospital, Beijing 100044, China
| | - Wing-Leung Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
| | - Xinxin Feng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Qing He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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20
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Zhou W, Chen L, Li H, Wu M, Liang M, Liu Q, Wu W, Jiang X, Zhen X. Membrane Disruption-Enhanced Photodynamic Therapy against Gram-Negative Bacteria by a Peptide-Photosensitizer Conjugate. ACS NANO 2024. [PMID: 39033413 DOI: 10.1021/acsnano.4c05443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Photodynamic therapy (PDT) emerges as a promising strategy for combating bacteria with minimal drug resistance. However, a significant hurdle lies in the ineffectiveness of most photosensitizers against Gram-negative bacteria, primarily attributable to their characteristic impermeable outer membrane (OM) barrier. To tackle this obstacle, we herein report an amphipathic peptide-photosensitizer conjugate (PPC) with intrinsic outer membrane disruption capability to enhance PDT efficiency against Gram-negative bacteria. PPC is constructed by conjugating a hydrophilic ultrashort cationic peptide to a hydrophobic photosensitizer. PPC could efficiently bind to the OM of Gram-negative bacteria through electrostatic adsorption, and subsequently disrupt the structural integrity of the OM. Mechanistic investigations revealed that PPC triggers membrane disruption by binding to both lipopolysaccharide (LPS) and phospholipid leaflet in the OM, enabling effective penetration of PPC into the Gram-negative bacteria interior. Upon light irradiation, PPC inside bacteria generates singlet oxygen not only to effectively decrease the survival of Gram-negative bacteria P. aeruginosa and E. coli to nearly zero in vitro, but also successfully cure the full-thickness skin infection and bacterial keratitis (BK) induced by P. aeruginosa in animal models. Thus, this study provides a broad-spectrum antibacterial phototherapeutic design strategy by the synergistic action of membrane disruption and PDT to combat Gram-negative bacteria.
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Affiliation(s)
- Wenya Zhou
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Linrong Chen
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Haoze Li
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Min Wu
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Mengke Liang
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Qian Liu
- Department of Urology, Tianjin First Central Hospital, Tianjin 300192, P. R. China
| | - Wei Wu
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Xiqun Jiang
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Xu Zhen
- MOE Key Laboratory of High Performance Polymer Materials & Technology and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, P. R. China
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21
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He B, Li Y, Li M, Kang M, Liu X, Huang J, Wang D, Lam JWY, Tang BZ. Pyridinium-Yne Click Polymerization: A Facile Strategy toward Functional Poly(Vinylpyridinium Salt)s with Multidrug-Resistant Bacteria Killing Ability. Angew Chem Int Ed Engl 2024; 63:e202405030. [PMID: 38695837 DOI: 10.1002/anie.202405030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Indexed: 06/11/2024]
Abstract
Polymeric materials with antibacterial properties hold great promise for combating multidrug-resistant bacteria, which pose a significant threat to public health. However, the synthesis of most antibacterial polymers typically involves complicated and time-consuming procedures. In this study, we demonstrate a simple and efficient strategy for synthesizing functional poly(vinylpyridinium salt)s via pyridinium-yne click polymerization. This click polymerization could proceed with high atom economy under mild conditions without any external catalyst, yielding soluble and thermally stable poly(vinylpyridinium salt)s with satisfactory molecular weights and well-defined structures in excellent yields. Additionally, the incorporation of luminescent units such as fluorene, tetraphenylethylene, and triphenylamine into the polymer backbone confers excellent aggregation-enhanced emission properties upon the resulting polymers, rendering them suitable for bacterial staining. Moreover, the existence of pyridinium salt imparts intrinsic antibacterial activity against multidrug-resistant bacteria to the polymers, enabling them to effectively inhibit wound bacterial infection and significantly expedite the healing process. This work not only provides an efficient method to prepare antibacterial polymers, but also opens up the possibility of various applications of polymers in healthcare and other antibacterial fields.
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Affiliation(s)
- Benzhao He
- Center for Advanced Materials Research, Instrumentation and Service Center for Science and Technology, Beijing Normal University, Zhuhai, 519085, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology), Guangzhou, 510640, China
| | - Ying Li
- Innovation Research Center for AIE Pharmaceutical Biology, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Meng Li
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Miaomiao Kang
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xinyue Liu
- Department of Chemistry, The Hong Kong University of Science & Technology, Kowloon, Hong Kong, China
| | - Jiachang Huang
- Center for Advanced Materials Research, Instrumentation and Service Center for Science and Technology, Beijing Normal University, Zhuhai, 519085, China
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Dong Wang
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jacky W Y Lam
- Department of Chemistry, The Hong Kong University of Science & Technology, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology), Guangzhou, 510640, China
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong, 518172, China
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22
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Khamrui R, Mukherjee A, Ghosh S. Hydrogen-Bonding-Regulated Morphology Control and the Impact on the Antibacterial Activity of Cationic π-Amphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13870-13878. [PMID: 38917360 DOI: 10.1021/acs.langmuir.4c00889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
This manuscript describes the synthesis, self-assembly, and antibacterial properties of naphthalene-diimide (NDI)-derived cationic π-amphiphiles. Three such asymmetric NDI derivatives with a nonionic hydrophilic wedge and a guanidine group in the two opposite sides of the NDI chromophore were considered. They differ by a single functional group (hydrazide, amide, and ester for NDI-1, NDI-2, and NDI-3, respectively), located in the linker between the NDI and the hydrophilic wedge. For NDI-1, the H-bonding among the hydrazides regulated unilateral stacking and a preferential direction of curvature of the resulting supramolecular polymer, producing an unsymmetric polymersome with the guanidinium groups displayed at the outer surface. NDI-3, lacking any H-bonding group, exhibits π-stacking without any preferential orientation and generates spherical particles with a relatively poor display of the guanidium groups. In sharp contrast to NDI-1, NDI-2 exhibits an entangled one-dimensional (1D) fibrillar morphology, indicating the prominent role of the H-bonding motif of the amide group and flexibility of the linker. The antibacterial activity of these assemblies was probed against Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative). NDI-1 showed the most promising antibacterial activity with a minimum inhibitory concentration (MIC) of ∼7.8 μg/mL against S. aureus and moderate activity (MIC ∼ 125 μg/mL) against E. coli. In sharp contrast, NDI-3 did not show any significant activity against the bacteria, suggesting a strong impact of the H-bonding-regulated directional assembly. NDI-2, forming a fibrillar network, showed moderate activity against S. aureus and negligible activity against E. coli, highlighting a significant impact of the morphology. All of these three molecules were found to be compatible with mammalian cells from the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide (MTT) and hemolysis assay. The mechanistic investigation by membrane polarization assay, live/dead fluorescence assay, and microscopy studies confirmed the membrane disruption mechanism of cell killing for the lead candidate NDI-1.
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Affiliation(s)
- Rajesh Khamrui
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Arunima Mukherjee
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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23
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Sheng C, Ding Y, Guo M. Compartmentalization into Outer and Inner Shells of Hollow Nanospheres for Antibiosis Based on Chemistry and Physical Damages. Adv Healthc Mater 2024; 13:e2400851. [PMID: 38502895 DOI: 10.1002/adhm.202400851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/14/2024] [Indexed: 03/21/2024]
Abstract
There is a substantially ascending demand for nonantibiotic strategies to overcome the resistance of bacterial infections. Here, the discovery of a distinctive antibacterial structure is reported. The novel structure of nanoparticle strategy is proposed for appreciable bacteria killing by the smart design of the delayed addition of crosslinkers into the reaction mixture. [2-(methacryloyloxy)ethyl]trimethylammonium chloride solution (MTCl), a water-soluble ionic liquid (IL), has narrow-size material distribution, good whiteness, and high weather resistance. The quaternary ammonium salt is utilized to efficiently permeate cell membranes through electrostatic interaction, accordingly, boasting a beneficiary of antibacterial properties. More importantly, it allows bacteria to attach the nanomaterials easily, especially the double-shelled nanosphere. In light of the introduction of 9-amino(9-deoxy)ep-quinine (QNNH2) on its inner shell, it blocks the nucleic acid and glucose metabolism in bacteria, which is betterment of the antibacterial activity of double-shelled structure nanoparticle compared to other structure of nanomaterials. This physical/chemical/biological triple antibacterial process eliminates the need for traditional antibiotics, and the fabrication strategies and material properties described here provide insights into the design of antibacterial nanomaterials based on chemical and physical effects.
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Affiliation(s)
- Chengju Sheng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
- Department of Materials Science and Engineering, Monash Institute of Medical Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Yanjun Ding
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Mingming Guo
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
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24
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Yang D, Zhao W, Zhang S, Liu Y, Teng J, Ma Y, Huang R, Wei H, Chen H, Zhang J, Chen J. Dual Self-Assembly of Puerarin and Silk Fibroin into Supramolecular Nanofibrillar Hydrogel for Infected Wound Treatment. Adv Healthc Mater 2024; 13:e2400071. [PMID: 38501563 DOI: 10.1002/adhm.202400071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/04/2024] [Indexed: 03/20/2024]
Abstract
The treatment of infected wounds remains a challenging biomedical problem. Some bioactive small-molecule hydrogelators with unique rigid structures can self-assemble into supramolecular hydrogels for wound healing. However, they are still suffered from low structural stability and bio-functionality. Herein, a supramolecular hydrogel antibacterial dressing with a dual nanofibrillar network structure is proposed. A nanofibrillar network created by a small-molecule hydrogelator, puerarin extracted from the traditional Chinese medicine Pueraria, is interconnected with a secondary macromolecular silk fibroin nanofibrillar network induced by Ga ions via charge-induced supramolecular self-assembly. The resulting hydrogel features adequate mechanical strength for sustainable retention at wounds. Good biocompatibility and efficient bacterial inhibition are obtained when the Ga ion concentration is 0.05%. Otherwise, the substantial release of Ga ions and puerarin endows the hydrogel with excellent hemostatic and antioxidative properties. In vivo, evaluation of a mouse-infected wound model demonstrates that its healing effect outperformed that of a commercially available silver-containing wound dressing. The experimental group successfully achieves a 100% wound closure rate on day 10. This study sheds new light on the design of nanofibrillar hydrogels based on supramolecular self-assembly of naturally derived bioactive molecules as well as their clinical use for treating chronic infected wounds.
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Affiliation(s)
- Dan Yang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530004, China
- Institute of Medical Sciences, The Second Hospital and Shandong University Center for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, 250033, China
| | - Wei Zhao
- Cixi Biomedical Research Institute, Wenzhou Medical University, Cixi, 315300, China
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Shengyu Zhang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Cixi, 315300, China
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Yu Liu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530004, China
- Institute of Medical Sciences, The Second Hospital and Shandong University Center for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, 250033, China
| | - Jingmei Teng
- Cixi Biomedical Research Institute, Wenzhou Medical University, Cixi, 315300, China
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Yuxi Ma
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Rongjian Huang
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Hua Wei
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Hailan Chen
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning, 530004, China
| | - Jiantao Zhang
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Jing Chen
- Institute of Medical Sciences, The Second Hospital and Shandong University Center for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, 250033, China
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25
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Liu Y, Cui P, Tan R, Ru S. Rapid Membrane-Penetrating Hybrid Peptides Achieve Efficient Dual Antimicrobial and Antibiofilm Activity through a Triple Bactericidal Mechanism. ACS OMEGA 2024; 9:26133-26148. [PMID: 38911764 PMCID: PMC11191078 DOI: 10.1021/acsomega.4c01577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
Antimicrobial peptides (AMPs) are a type of biomaterial used against multidrug resistant (MDR) bacteria. This study reports the design of a peptide family rich in tryptophan and lysine obtained by optimizing a natural AMP using single factor modification and pheromone hybridization to expedite the penetration and improve the antimicrobial activity of AMPs. S-4, L-4, and P-4 showed α-helical structures, exhibited extremely fast membrane penetration rates in vitro, and could kill MDR bacteria efficiently within 30 min. Intracellular fluorescence localization suggested rapid membrane-penetrating of AMPs within 1 min, making it more difficult for bacteria to develop resistance. Furthermore, they could effectively inhibit and destroy bacterial biofilms with dual antimicrobial and antibiofilm activity. In the treatment of skin infections caused by MDR-Acinetobacter baumannii in vivo , AMPs could effectively alleviate inflammation without toxic side effects. Additionally, the triple antimicrobial damage of AMPs was described in detail. AMPs rapidly penetrate the cell membrane, inducing cell membrane damage, triggering oxidative damage with a storm of reactive oxygen species and leading to bacterial death through leakage of cellular contents by complexing with DNA. The multiple damage is an important means by which AMPs can prevent bacterial resistance adequately.
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Affiliation(s)
| | | | - Rong Tan
- Lab of Environmental Health
and Ecological Engineering, College of Marine Life Science, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- Lab of Environmental Health
and Ecological Engineering, College of Marine Life Science, Ocean University of China, Qingdao 266003, China
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26
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Zhu W, Ding Z, Guo S, Guo WJ, Yan S, Liu B, Li H, Liu Z, Tang BZ, Peng HQ. Exclusive and Switchable Superoxide Radical Generation by O 2-Capture-Based Electron Transfer and Supramolecular Assembly. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309424. [PMID: 38174600 DOI: 10.1002/smll.202309424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Type-I photosensitizers (PSs) can generate free radical anions with a broad diffusion range and powerful damage effect, rendering them highly desirable in various areas. However, it still remains a recognized challenge to develop pure Type-I PSs due to the inefficiency in producing oxygen radical anions through the collision of PSs with nearby substrates. In addition, regulating the generation of oxygen radical anions is also of great importance toward the control of photosensitizer (PS) activities on demand. Herein, a piperazine-based cationic Type-I PS (PPE-DPI) that exhibits efficient intersystem crossing and subsequently captures oxygen molecules through binding O2 to the lone pair of nitrogen in piperazine is reported. The close spatial vicinity between O2 and PPE-DPI strongly promotes the electron transfer reaction, ensuring the exclusive superoxide radical (O2 •-) generation via Type-I process. Particularly, PPE-DPI with cationic pyridine groups is able to associate with cucurbit[7]uril (CB[7]) through host-guest interactions. Thus, supramolecular assembly and disassembly are easily utilized to realize switchable O2 •- generation. This switchable Type-I PS is successfully employed in photodynamic antibacterial control.
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Affiliation(s)
- Wenping Zhu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhen Ding
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shaoxun Guo
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Wu-Jie Guo
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shirong Yan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Bin Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhen Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong, 518172, China
| | - Hui-Qing Peng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
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Xu Z, Yu X, Gao F, Zang M, Huang L, Liu W, Xu J, Yu S, Wang T, Sun H, Liu J. Fighting bacteria with bacteria: A biocompatible living hydrogel patch for combating bacterial infections and promoting wound healing. Acta Biomater 2024; 181:176-187. [PMID: 38719158 DOI: 10.1016/j.actbio.2024.04.047] [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: 12/30/2023] [Revised: 04/28/2024] [Accepted: 04/30/2024] [Indexed: 05/23/2024]
Abstract
Bacterial infections are among the most critical global health challenges that seriously threaten the security of human. To address this issue, a biocompatible engineered living hydrogel patch was developed by co-embedding engineered photothermal bacteria (EM), photosensitizer (porphyrin) and reactive oxygen species amplifier (laccase) in a protein hydrogel. Remarkably, the genetice engineered bacteria can express melanin granules in vivo and this allows them to exhibit photothermal response upon being exposed to NIR-II laser (1064 nm) irradiation. Besides, electrostatically adhered tetramethylpyridinium porphyrin (TMPyP) on the bacterial surface and encapsulated laccase (Lac) in protein gel can generate highly toxic singlet oxygen (1O2) and hydroxyl radical (·OH) in the presence of visible light and lignin, respectively. Interestingly, the engineered bacteria hydrogel patch (EMTL@Gel) was successfully applied in synergistic photothermal, photodynamic and chemodynamic therapy, in which it was able to efficiently treat bacterial infection in mouse wounds and enhance wound healing. This work demonstrates the concept of "fighting bacteria with bacteria" combining bacterial engineering and material engineering into an engineered living hydrogel path that can synergistically boost the therapeutic outcome. STATEMENT OF SIGNIFICANCE: Genetically engineered bacteria produce melanin granules in vivo, exhibiting remarkable photothermal properties. These bacteria, along with a photosensitizer (TMPyP) and a reactive oxygen species amplifier (laccase), are incorporated into a biocompatible protein hydrogel patch. Under visible light, the patch generates toxic singlet oxygen (1O2) and hydroxyl radical (·OH), demonstrates outstanding synergistic effects in photothermal, photodynamic, and chemodynamic therapy, effectively treating bacterial infections and promoting wound healing in mice.
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Affiliation(s)
- Zhengwei Xu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Xiaoxuan Yu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Fan Gao
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Mingsong Zang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Liwei Huang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Wang Liu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Jiayun Xu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Shuangjiang Yu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Tingting Wang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China.
| | - Hongcheng Sun
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China.
| | - Junqiu Liu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, PR China.
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Li Z, Ren J, Sui X, Yang N, Li S, Qi L, Li S, Fan Y, Liu Z. A win-win platform: Stabilized black phosphorous nanosheets loading gallium ions for enhancing the healing of bacterial-infected wounds through synergistic antibacterial approaches. Int Wound J 2024; 21:e14940. [PMID: 38888416 PMCID: PMC11184645 DOI: 10.1111/iwj.14940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/16/2024] [Accepted: 05/19/2024] [Indexed: 06/20/2024] Open
Abstract
Bacterial infection is the most common complication in wound healing, highlighting an urgent need for the development of innovative antibacterial technologies and treatments to address the growing threats posed by bacterial infections. Black phosphorus nanosheets (BPNSs), as a promising two-dimensional nanomaterial, have been utilized in treating infected wounds. However, BP's limited stability restricts its application. In this study, we enhance BP's stability and its antibacterial properties by anchoring gallium ions (Ga3+) onto BP's surface, creating a novel antibacterial platform. This modification reduces BP's electron density and enhances its antibacterial capabilities through a synergistic effect. Under near-infrared (NIR) irradiation, the BP/Ga3+ combination exerts antibacterial effects via photothermal therapy (PTT) and photodynamic therapy (PDT), while also releasing Ga3+. The Ga3+ employ a 'Trojan horse strategy' to disrupt iron metabolism, significantly boosting the antibacterial efficacy of the complex. This innovative material offers a viable alternative to antibiotics and holds significant promise for treating infected wounds and aiding skin reconstruction.
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Affiliation(s)
- Zhiwei Li
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Jiwei Ren
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Xin Sui
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Nan Yang
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Sijia Li
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Le Qi
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Sining Li
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Yixin Fan
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
| | - Zhihui Liu
- Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of StomatologyJilin UniversityChangchunChina
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Tian J, Li B, Wu C, Li Z, Tang H, Song W, Qi GB, Tang Y, Ping Y, Liu B. Programmable Singlet Oxygen Battery for Automated Photodynamic Therapy Enabled by Pyridone-Pyridine Tautomer Engineering. J Am Chem Soc 2024. [PMID: 38753624 DOI: 10.1021/jacs.4c02500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
The efficacy of photodynamic therapy is hindered by the hypoxic environment in tumors and limited light penetration depth. The singlet oxygen battery (SOB) has emerged as a promising solution, enabling oxygen- and light-independent 1O2 release. However, conventional SOB systems typically exhibit an "always-ON" 1O2 release, leading to potential 1O2 leakage before and after treatment. This not only compromises therapeutic outcomes but also raises substantial biosafety concerns. In this work, we introduce a programmable singlet oxygen battery, engineered to address all the issues discussed above. The concept is illustrated through the development of a tumor-microenvironment-responsive pyridone-pyridine switch, PyAce, which exists in two tautomeric forms: PyAce-0 (pyridine) and PyAce (pyridone) with different 1O2 storage half-lives. In its native state, PyAce remains in the pyridone form, capable of storing 1O2 (t1/2 = 18.5 h). Upon reaching the tumor microenvironment, PyAce is switched to the pyridine form, facilitating rapid and thorough 1O2 release (t1/2 = 16 min), followed by quenched 1O2 release post-therapy. This mechanism ensures suppressed 1O2 production pre- and post-therapy with selective and rapid 1O2 release at the tumor site, maximizing therapeutic efficacy while minimizing side effects. The achieved "OFF-ON-OFF" 1O2 therapy showed high spatiotemporal selectivity and was independent of the oxygen supply and light illumination.
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Affiliation(s)
- Jianwu Tian
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 1, Singapore 117585, Singapore
| | - Bowen Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 1, Singapore 117585, Singapore
| | - Chongzhi Wu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhiyao Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Honglin Tang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wentao Song
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 1, Singapore 117585, Singapore
| | - Guo-Bin Qi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 1, Singapore 117585, Singapore
| | - Yufu Tang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 1, Singapore 117585, Singapore
| | - Yuan Ping
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 1, Singapore 117585, Singapore
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30
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Zheng Y, Cai X, Chen G, Xiang D, Shi W, Shen J, Xiang B. Single Atom-Dispersed Silver Incorporated in ZIF-8-Derived Porous Carbon for Enhanced Photothermal Activity and Antibacterial Activities. Int J Nanomedicine 2024; 19:4253-4261. [PMID: 38766662 PMCID: PMC11102103 DOI: 10.2147/ijn.s459176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/06/2024] [Indexed: 05/22/2024] Open
Abstract
Purpose Recently, Single-atom-loaded carbon-based material is a new environmentally friendly and stable photothermal antibacterial nanomaterial. It is still a great challenge to achieve single-atom loading on carbon materials. Materials and Methods Herein, We doped single-atom Ag into ZIF-8-derived porous carbon to obtain Ag-doped ZIF-8-derived porous carbon(AgSA-ZDPC). The as-prepared samples were characterized by XRD, XPS, FESEM, EDX, TEM, and HAADF-STEM which confirmed that the single-atom Ag successfully doped into the porous carbon. Further, the photothermal properties and antimicrobial activity of AgSA-ZDPC have been tested. Results The results showed that the temperature increased by 30 °C after near-infrared light irradiation(1 W/cm2) for 5 min which was better than ZIF-8-derived porous carbon(ZDPC). It also exhibits excellent photothermal stability after the laser was switched on and off 5 times. When the AgSA-ZDPC concentration was greater than 50 µg/mL and the near-infrared irradiation was performed for 5 min, the growth inhibition of S. aureus and E. coli was almost 100%. Conclusion This work provides a simple method for the preparation of single-atom Ag-doped microporous carbon which has potential antibacterial application.
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Affiliation(s)
- Yutong Zheng
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, 418000, People’s Republic of China
| | - Xiaoyi Cai
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, 418000, People’s Republic of China
| | - Gui Chen
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, 418000, People’s Republic of China
| | - Dexuan Xiang
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, 418000, People’s Republic of China
| | - Wei Shi
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, 418000, People’s Republic of China
| | - Jianliang Shen
- State Key Laboratory of Ophthalmology, Wenzhou Medical University, University of Chinese Academy of Sciences, Wenzhou, 325000, People’s Republic of China
| | - Bailin Xiang
- College of Chemistry and Materials Engineering, Huaihua University, Huaihua, 418000, People’s Republic of China
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Li W, Qi M, Zhou J, Sun Y, Sun J, Dong B, Wang L, Song S. Pathogen-Activated Macrophage Membrane Encapsulated CeO 2-TCPP Nanozyme with Targeted and Photo-Enhanced Antibacterial Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309664. [PMID: 38057126 DOI: 10.1002/smll.202309664] [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: 10/24/2023] [Revised: 11/21/2023] [Indexed: 12/08/2023]
Abstract
Nanozymes with peroxidase-mimic activity have recently emerged as effective strategies for eliminating infections. However, challenges in enhancing catalytic activities and the ability to target bacteria have hindered the broader application of nanozymes in bacterial infections. Herein, a novel nanozyme based on mesoporous CeO2 nanosphere and meso-tetra(4-carboxyphenyl)porphine (TCPP) encapsulated within pathogen-activated macrophage membranes, demonstrates photodynamic capability coupled with photo-enhanced chemodynamic therapy for selective and efficient antibacterial application against infected wounds. Interestingly, the expression of Toll-like receptors accordingly upregulates when macrophages are co-cultured with specific bacteria, thereby facilitating to recognition of the pathogen-associated molecular patterns originating from bacteria. The CeO2 not only serve as carriers for TCPP, but also exhibit intrinsic peroxidase-like catalytic activity. Consequently, Staphylococcus aureus (S. aureus)-activated macrophage membrane-coated CeO2-TCPP (S-MM@CeO2-TCPP) generated singlet oxygen, and simultaneously promoted photo-enhanced chemodynamic therapy, significantly boosting reactive oxygen species (ROS) to effectively eliminate bacteria. S-MM@CeO2-TCPP specifically targeted S. aureus via Toll-like receptor, thereby directly disrupting bacterial structural integrity to eradicate S. aureus in vitro and relieve bacteria-induced inflammation to accelerate infected wound healing in vivo. By selectively targeting specific bacteria and effectively killing pathogens, such strategy provides a more efficient and reliable alternative for precise elimination of pathogens and inflammation alleviation in microorganism-infected wounds.
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Affiliation(s)
- Wen Li
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Manlin Qi
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Jing Zhou
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Yue Sun
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Jiao Sun
- Department of Cell Biology, Norman Bethune College of Medicine Jilin University, Changchun, 130021, P. R. China
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics Collage of Electronic Science and Engineering, Jilin University, Changchun, 130021, P. R. China
| | - Lin Wang
- Department of Oral Implantology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
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32
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Sun L, Zhao Y, Peng H, Zhou J, Zhang Q, Yan J, Liu Y, Guo S, Wu X, Li B. Carbon dots as a novel photosensitizer for photodynamic therapy of cancer and bacterial infectious diseases: recent advances. J Nanobiotechnology 2024; 22:210. [PMID: 38671474 PMCID: PMC11055261 DOI: 10.1186/s12951-024-02479-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
Carbon dots (CDs) are novel carbon-based nanomaterials that have been used as photosensitizer-mediated photodynamic therapy (PDT) in recent years due to their good photosensitizing activity. Photosensitizers (PSs) are main components of PDT that can produce large amounts of reactive oxygen species (ROS) when stimulated by light source, which have the advantages of low drug resistance and high therapeutic efficiency. CDs can generate ROS efficiently under irradiation and therefore have been extensively studied in disease local phototherapy. In tumor therapy, CDs can be used as PSs or PS carriers to participate in PDT and play an extremely important role. In bacterial infectious diseases, CDs exhibit high bactericidal activity as CDs are effective in disrupting bacterial cell membranes leading to bacterial death upon photoactivation. We focus on recent advances in the therapy of cancer and bacteria with CDs, and also briefly summarize the mechanisms and requirements for PSs in PDT of cancer, bacteria and other diseases. We also discuss the role CDs play in combination therapy and the potential for future applications against other pathogens.
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Affiliation(s)
- Lingxiang Sun
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Yifan Zhao
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Hongyi Peng
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Jian Zhou
- Laboratory for Oral and General Health Integration and Translation, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100069, China
| | - Qingmei Zhang
- Taiyuan University of Science and Technology, Taiyuan, China
| | - Jingyu Yan
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Yingyu Liu
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Susu Guo
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Xiuping Wu
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China.
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China.
| | - Bing Li
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China.
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China.
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Wang RP, Liu W, Wang X, Shan G, Liu T, Xu F, Dai H, Qi C, Feng HT, Tang BZ. Supramolecular Assembly Based on Calix(4)arene and Aggregation-Induced Emission Photosensitizer for Phototherapy of Drug-Resistant Bacteria and Skin Flap Transplantation. Adv Healthc Mater 2024; 13:e2303336. [PMID: 38211556 DOI: 10.1002/adhm.202303336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 01/04/2024] [Indexed: 01/13/2024]
Abstract
Photodynamic therapy as a burgeoning and non-invasive theranostic technique has drawn great attention in the field of antibacterial treatment but often encounters undesired phototoxicity of photosensitizers during systemic circulation. Herein, a supramolecular substitution strategy is proposed for phototherapy of drug-resistant bacteria and skin flap repair by using macrocyclic p-sulfonatocalix(4)arene (SC4A) as a host, and two cationic aggregation-induced emission luminogens (AIEgens), namely TPE-QAS and TPE-2QAS, bearing quaternary ammonium group(s) as guests. Through host-guest assembly, the obtained complex exhibits obvious blue fluorescence in the solution due to the restriction of free motion of AIEgens and drastically inhibits efficient type I ROS generation. Then, upon the addition of another guest 4,4'-benzidine dihydrochloride, TPE-QAS can be competitively replaced from the cavity of SC4A to restore its pristine ROS efficiency and photoactivity in aqueous solution. The dissociative TPE-QAS shows a high bacterial binding ability with an efficient treatment for methicillin-resistant Staphylococcus aureus (MRSA) in dark and light irradiation. Meanwhile, it also exhibits an improved survival rate for MRSA-infected skin flap transplantation and largely accelerates the healing process. Thus, such cascaded host-guest assembly is an ideal platform for phototheranostics research.
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Affiliation(s)
- Rui-Peng Wang
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, 721013, China
| | - Wenbin Liu
- Department of Orthopaedics, The Third Xiangya Hospital Central South University, Changsha, 410013, China
- Department of Orthopedic Surgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 413000, China
| | - Xiaoxuan Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
| | - Guogang Shan
- National & Local United Engineering Laboratory for Power Batteries, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Tuozhou Liu
- Department of Orthopedic Surgery, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 413000, China
| | - Fengrui Xu
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, 721013, China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
| | - Chunxuan Qi
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, 721013, China
| | - Hai-Tao Feng
- AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, 721013, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen, 518172, China
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Hao X, Tang Y, Zhang R, Wang Z, Gao M, Wei R, Zhao Y, Mu X, Lu Y, Zhou X. Cationized orthogonal triad as a photosensitizer with enhanced synergistic antimicrobial activity. Acta Biomater 2024; 178:287-295. [PMID: 38395101 DOI: 10.1016/j.actbio.2024.02.027] [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: 12/06/2023] [Revised: 01/20/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024]
Abstract
Single-molecule-based synergistic phototherapy holds great potential for antimicrobial treatment. Herein, we report an orthogonal molecular cationization strategy to improve the reactive oxygen species (ROS) and hyperthermia generation of heptamethine cyanine (Cy7) for photodynamic and photothermal treatments of bacterial infections. Cationic pyridine (Py) is introduced at the meso‑position of the asymmetric Cy7 with intramolecular charge transfer (ICT) to construct an atypical electron-transfer triad, which reduces ΔES1-S0, circumvents rapid charge recombination, and simultaneously enhances intersystem crossing (ISC) based on spin-orbit charge-transfer ISC (SOCT-ISC) mechanism. This unique molecular construction produces anti-Stokes luminescence (ASL) because the rotatable CN bond enriched in high vibrational-rotational energy levels improves hot-band absorption (HBA) efficiency. The obtained triad exhibits higher singlet oxygen quantum yield and photothermal conversion efficiency compared to indocyanine green (ICG) under irradiation above 800 nm. Cationization with Py enables the triad to target bacteria via intense electrostatic attractions, as well as biocidal property against a broad spectrum of bacteria in the dark. Moreover, the triad under irradiation can enhance biofilm eradication performance in vitro and statistically improve healing efficacy of MRSA-infected wound in mice. Thus, this work provides a simple but effective strategy to design small-molecule photosensitizers for synergistic phototherapy of bacterial infections. STATEMENT OF SIGNIFICANCE: We developed an orthogonal molecular cationization strategy to enhance the reactive oxygen species and thermal effects of heptamethine cyanine (Cy7) for photodynamic and photothermal treatments of bacterial infections. Specifically, cationic pyridine (Py) was introduced at the meso‑position of the asymmetric Cy7 to construct an atypical electron-transfer triad, which reduced ΔES1-S0, circumvented rapid charge recombination, and simultaneously enhanced intersystem crossing (ISC). This triad, with a rotatable CN bond, produced anti-Stokes luminescence due to hot-band absorption. The triad enhanced antimicrobial performance and statistically improved the healing efficacy of MRSA-infected wounds in mice. This site-specific cationization strategy may provide insights into the design of small molecule-based photosensitizers for synergistic phototherapy of bacterial infections.
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Affiliation(s)
- Xiaoying Hao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Ying Tang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Ruiling Zhang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, 266237, PR China
| | - Zigeng Wang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Min Gao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Ran Wei
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Yongxian Zhao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Xueluer Mu
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Yingxi Lu
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Xianfeng Zhou
- College of Material Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China; College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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35
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Kamalipooya S, Fahimirad S, Abtahi H, Golmohammadi M, Satari M, Dadashpour M, Nasrabadi D. Diabetic wound healing function of PCL/cellulose acetate nanofiber engineered with chitosan/cerium oxide nanoparticles. Int J Pharm 2024; 653:123880. [PMID: 38350498 DOI: 10.1016/j.ijpharm.2024.123880] [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: 09/24/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/15/2024]
Abstract
The use of cerium oxide nanoparticles (CeO2NPs) in diabetic wound repair substances has shown promising results. Therefore, the study was conducted to introduce a novel nano-based wound dressing containing chitosan nanoparticles encapsulated with green synthesized cerium oxide nanoparticles using Thymus vulgaris extract (CeO2-CSNPs). The physical properties and structure of the nanoparticles were analyzed using XRD, DLS, FESEM and FTIR techniques. The electrospun PCL/cellulose acetate-based nanofiber was prepared and CeO2-CSNPs were integrated on the PCL/CA membrane by electrospraying. The physicochemical properties, morphology and biological characteristics of the electrospun nanocomposite were evaluated. The results showed that the nanocomposite with 0.1 % CeO2-CSNPs exhibited high antibacterial performance against S. aureus (<58.59 µg/mL). The PCL/CA/CeO2-CSNPs nanofiber showed significant antioxidant activity up to 89.59 %, cell viability improvement, and cell migration promotion up to 90.3 % after 48 h. The in vivo diabetic wound healing experiment revealed that PCL/CA/CeO2-CSNPs nanofibers can significantly increase the repair rate of diabetic wounds by up to 95.47 % after 15 days. The results of this research suggest that PCL/CA nanofiber mats functionalized with CeO2-CSNPs have the potential to be highly effective in treating diabetes-related wounds.
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Affiliation(s)
- Samaneh Kamalipooya
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran; Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Shohreh Fahimirad
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Hamid Abtahi
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Morteza Golmohammadi
- Department of Chemical Engineering, Birjand University of Technology, Birjand, Iran
| | - Mohammad Satari
- Department of Biology, Faculty of Sciences, Malayer University, Malayer, Iran
| | - Mehdi Dadashpour
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Davood Nasrabadi
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran; Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
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36
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Kumar N, Nakaji-Hirabayashi T, Kato M, Matsumura K, Rajan R. Design of Highly Selective Zn-Coordinated Polyampholyte for Cancer Treatment and Inhibition of Tumor Metastasis. Biomacromolecules 2024; 25:1481-1490. [PMID: 38343080 DOI: 10.1021/acs.biomac.3c01044] [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: 03/12/2024]
Abstract
Developing anticancer agents with negligible cytotoxicity against normal cells while mitigating multidrug resistance and metastasis is challenging. Previously reported cationic polymers have effectively eradicated cancers but are clinically unsuitable due to their limited selectivity. Herein, a series of poly(l-lysine)- and nicotinic acid-based polymers were synthesized using varying amounts of dodecylsuccinic anhydride. Zn-coordinating polymers concealed their cationic charge and enhanced selectivity. These Zn-bound polymers were highly effective against liver and colon cancer cells (HepG2 and Colon 26, respectively) and prevented cancer cell migration. They also displayed potent anticancer activity against drug-resistant cell lines (COR-L23/R): their cationic structure facilitated cancer cell membrane disruption. Compared to these polymers, doxorubicin was less selective and less efficacious against drug-resistant cell lines and was unable to prevent cell migration. These polymers are potential cancer treatment agents, offering a promising solution for mitigating drug resistance and tumor metastasis and representing a novel approach to designing cancer therapeutics.
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Affiliation(s)
- Nishant Kumar
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Tadashi Nakaji-Hirabayashi
- Faculty of Engineering, Academic Assembly, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
- Graduate School of Innovative Life Science, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Moe Kato
- Graduate School of Innovative Life Science, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Kazuaki Matsumura
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Robin Rajan
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
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37
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Li Q, Ye H, Zhao F, Li Y, Zhang Z, Yan Q, Sun Y. Recent advances in combatting bacterial infections via well-designed metallacycles/metallacages. Dalton Trans 2024; 53:3434-3444. [PMID: 38224466 DOI: 10.1039/d3dt03966h] [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: 01/16/2024]
Abstract
Bacterial infections can lead to the development of large-scale outbreaks of diseases that pose a serious threat to human life and health. Also, conventional antibiotics are prone to producing resistance and allergic reactions, and their therapeutic effect is dramatically diminished when bacterial communities form biofilms. Fortunately, well-designed supramolecular coordination complexes (SCCs) have been used as antibacterials or anti-biofilms in recent years. SCCs can kill bacteria by directly engaging with the bacterial surface through electrostatic interactions or by penetrating the bacterial membrane through the auxiliary effect of cell-penetrating peptides. Furthermore, scientists have engineered fluorescent SCCs that can produce reactive oxygen species (ROS) to eliminate bacteria when exposed to laser irradiation, and they also demonstrate outstanding performance in in vivo imaging, enabling integrated diagnosis and treatment. In this review, we summarize the design strategy and applications of SCCs in antibacterials or anti-biofilms and provide an outlook on future research.
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Affiliation(s)
- Qian Li
- Department of General Surgery, Huzhou Central Hospital, Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou 313000, China.
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - Huan Ye
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Fang Zhao
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
| | - Yuntao Li
- Department of General Surgery, Huzhou Central Hospital, Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou 313000, China.
| | - Zhipeng Zhang
- Xianning Medical College, College of Pharmacy, Hubei University of Science & Technology, Xianning 437100, China.
| | - Qiang Yan
- Department of General Surgery, Huzhou Central Hospital, Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou 313000, China.
| | - Yao Sun
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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38
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Zhou Y, Xu L, Sun X, Zhan W, Liang G. In situ peptide assemblies for bacterial infection imaging and treatment. NANOSCALE 2024; 16:3211-3225. [PMID: 38288668 DOI: 10.1039/d3nr05557d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Bacterial infections, especially antibiotic-resistant ones, remain a major threat to human health. Advances in nanotechnology have led to the development of numerous antimicrobial nanomaterials. Among them, in situ peptide assemblies, formed by biomarker-triggered self-assembly of peptide-based building blocks, have received increasing attention due to their unique merits of good spatiotemporal controllability and excellent disease accumulation and retention. In recent years, a variety of "turn on" imaging probes and activatable antibacterial agents based on in situ peptide assemblies have been developed, providing promising alternatives for the treatment and diagnosis of bacterial infections. In this review, we introduce representative design strategies for in situ peptide assemblies and highlight the bacterial infection imaging and treatment applications of these supramolecular materials. Besides, current challenges in this field are proposed.
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Affiliation(s)
- Yanyan Zhou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Department of Physics, Nanjing University, Nanjing 210093, China
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Lingling Xu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Xianbao Sun
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Wenjun Zhan
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Gaolin Liang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
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Yang N, Sun M, Wang H, Hu D, Zhang A, Khan S, Chen Z, Chen D, Xie S. Progress of stimulus responsive nanosystems for targeting treatment of bacterial infectious diseases. Adv Colloid Interface Sci 2024; 324:103078. [PMID: 38215562 DOI: 10.1016/j.cis.2024.103078] [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: 08/17/2023] [Revised: 12/27/2023] [Accepted: 01/02/2024] [Indexed: 01/14/2024]
Abstract
In recent decades, due to insufficient concentration at the lesion site, low bioavailability and increasingly serious resistance, antibiotics have become less and less dominant in the treatment of bacterial infectious diseases. It promotes the development of efficient drug delivery systems, and is expected to achieve high absorption, targeted drug release and satisfactory therapy effects. A variety of endogenous stimulation-responsive nanosystems have been constructed by using special infection microenvironments (pH, enzymes, temperature, etc.). In this review, we firstly provide an extensive review of the current research progress in antibiotic treatment dilemmas and drug delivery systems. Then, the mechanism of microenvironment characteristics of bacterial infected lesions was elucidated to provide a strong theoretical basis for bacteria-targeting nanosystems design. In particular, the discussion focuses on the design principles of single-stimulus and dual-stimulus responsive nanosystems, as well as the use of endogenous stimulus-responsive nanosystems to deliver antimicrobial agents to target locations for combating bacterial infectious diseases. Finally, the challenges and prospects of endogenous stimulus-responsive nanosystems were summarized.
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Affiliation(s)
- Niuniu Yang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China; Shenzhen Institute of Nutrition and Health,Huazhong Agricultural University, Shenzhen, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Mengyuan Sun
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China
| | - Huixin Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China
| | - Danlei Hu
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China
| | - Aoxue Zhang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China
| | - Suliman Khan
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China
| | - Zhen Chen
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China
| | - Dongmei Chen
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
| | - Shuyu Xie
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei 430070, China; Shenzhen Institute of Nutrition and Health,Huazhong Agricultural University, Shenzhen, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
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40
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Han Z, Xiong J, Jin X, Dai Q, Han M, Wu H, Yang J, Tang H, He L. Advances in reparative materials for infectious bone defects and their applications in maxillofacial regions. J Mater Chem B 2024; 12:842-871. [PMID: 38173410 DOI: 10.1039/d3tb02069j] [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: 01/05/2024]
Abstract
Infectious bone defects are characterized by the partial loss or destruction of bone tissue resulting from bacterial contaminations subsequent to diseases or external injuries. Traditional bone transplantation and clinical methods are insufficient in meeting the treatment demands for such diseases. As a result, researchers have increasingly focused on the development of more sophisticated biomaterials for improved therapeutic outcomes in recent years. This review endeavors to investigate specific reparative materials utilized for the treatment of infectious bone defects, particularly those present in the maxillofacial region, with a focus on biomaterials capable of releasing therapeutic substances, functional contact biomaterials, and novel physical therapy materials. These biomaterials operate via heightened antibacterial or osteogenic properties in order to eliminate bacteria and/or stimulate bone cells regeneration in the defect, ultimately fostering the reconstitution of maxillofacial bone tissue. Based upon some successful applications of new concept materials in bone repair of other parts, we also explore their future prospects and potential uses in maxillofacial bone repair later in this review. We highlight that the exploration of advanced biomaterials holds promise in establishing a solid foundation for the development of more biocompatible, effective, and personalized treatments for reconstructing infectious maxillofacial defects.
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Affiliation(s)
- Ziyi Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Jingdi Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Xiaohan Jin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Qinyue Dai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Mingyue Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Hongkun Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Jiaojiao Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Haiqin Tang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Libang He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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41
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Zhao Y, Liu Y, Liao R, Ran P, Liu Y, Li Z, Shao J, Zhao L. Biofilm Microenvironment-Sensitive Piezoelectric Nanomotors for Enhanced Penetration and ROS/NO Synergistic Bacterial Elimination. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3147-3161. [PMID: 38212273 DOI: 10.1021/acsami.3c15689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Sonodynamic therapy offers a highly accurate treatment for bacterial infections; however, its antibacterial efficacy is hindered by bacterial biofilms that limit the penetration of sonosensitizers. Herein, a nitric oxide (NO)-driven mushroom-like Janus nanomotor (BT@PDA-La) based on the unilateral coating of polydopamine (PDA) on piezoelectric tetragonal barium titanate (BT) and further modified with l-arginine (l-Arg) on the PDA side is fabricated. In the infected microenvironment with high levels of H2O2, NO is produced unilaterally from BT@PDA-La, thus leading to its self-propelled movement and facilitating its permeability in the biofilm. Under ultrasonic vibrations, the piezoelectric effect of BT@PDA-La is triggered by the exogenous mechanical wave, and toxic reactive oxygen species (ROS) are efficiently generated via an in situ catalytic reaction. The synergistic treatment with ROS/NO achieved the destruction of biofilms and embedded drug-resistant bacteria in vitro. Importantly, BT@PDA-La exhibits excellent biofilm penetration capacity, effectively eliminating biofilm infection while accelerating the healing of infected muscles by alleviating oxidative stress, regulating inflammatory factors, and accelerating angiogenesis. Collectively, this study provides a promising strategy for enhancing the penetration of pathological environment-driven nanomaterials through biofilms and advances the application of nanomotors for the therapy of bacterial infections in clinical medicine.
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Affiliation(s)
- Ye Zhao
- Key Laboratory of Target Discovery and Protein Drug Development in Major Diseases of Sichuan Higher Education Institutes, School of Bioscience and Technology, Chengdu Medical College, Chengdu 610500, PR China
| | - Yao Liu
- Key Laboratory of Target Discovery and Protein Drug Development in Major Diseases of Sichuan Higher Education Institutes, School of Bioscience and Technology, Chengdu Medical College, Chengdu 610500, PR China
- Development and Regeneration Key Laboratory of Sichuan Province, School of Laboratory Medicine, Chengdu Medical College, Chengdu 610500, PR China
| | - Ran Liao
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu Medical College, Chengdu 610051, China
| | - Pan Ran
- Key Laboratory of Target Discovery and Protein Drug Development in Major Diseases of Sichuan Higher Education Institutes, School of Bioscience and Technology, Chengdu Medical College, Chengdu 610500, PR China
| | - Yuan Liu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Zixuan Li
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu Medical College, Chengdu 610051, China
| | - Jichun Shao
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu Medical College, Chengdu 610051, China
| | - Long Zhao
- Key Laboratory of Target Discovery and Protein Drug Development in Major Diseases of Sichuan Higher Education Institutes, School of Bioscience and Technology, Chengdu Medical College, Chengdu 610500, PR China
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu Medical College, Chengdu 610051, China
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42
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Li Y, Chen S, Zhang M, Ma X, Zhao J, Ji Y. Novel Injectable, Self-Healing, Long-Effective Bacteriostatic, and Healed-Promoting Hydrogel Wound Dressing and Controlled Drug Delivery Mechanisms. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2140-2153. [PMID: 38178630 DOI: 10.1021/acsami.3c15705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Multivalent ion cross-linking has been used to form hydrogels between sodium alginate (SA) and hyaluronic acid (HA) in previous studies. However, more stable and robust covalent cross-linking is rarely reported. Herein, we present a facile approach to fabricate a SA and HA hydrogel for wound dressings with injectable, good biocompatibility, and high ductility. HA was first reacted with ethylenediamine to graft an amino group. Then, it was cross-linked with oxidized SA with dialdehyde to form hydrogel networks. The dressing can effectively promote cell migration and wound healing. To increase the antibacterial property of the dressing, we successfully loaded tetracycline hydrochloride into the hydrogel as a model drug. The drug can be released slowly in the alkaline environment of chronic wounds, and the hydrogel releases drugs again in the more acidic environment with wound healing, achieving a long-term antibacterial effect. In addition, one-dimensional partial differential equations based on Fickian diffusion with time-varying diffusion coefficients and hydrogel thicknesses were used to model the entire complex drug release process and to predict drug release.
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Affiliation(s)
- Yufeng Li
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Shanqi Chen
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Mingdong Zhang
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Xiang Ma
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jian Zhao
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Yuanhui Ji
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
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Tian D, Liu Y, Zhang Y, Liu Y, Xia Y, Xu B, Xu J, Yomo T. Implementation of Fluorescent-Protein-Based Quantification Analysis in L-Form Bacteria. Bioengineering (Basel) 2024; 11:81. [PMID: 38247958 PMCID: PMC10813599 DOI: 10.3390/bioengineering11010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Cell-wall-less (L-form) bacteria exhibit morphological complexity and heterogeneity, complicating quantitative analysis of them under internal and external stimuli. Stable and efficient labeling is needed for the fluorescence-based quantitative cell analysis of L-forms during growth and proliferation. Here, we evaluated the expression of multiple fluorescent proteins (FPs) under different promoters in the Bacillus subtilis L-form strain LR2 using confocal microscopy and imaging flow cytometry. Among others, Pylb-derived NBP3510 showed a superior performance for inducing several FPs including EGFP and mKO2 in both the wild-type and L-form strains. Moreover, NBP3510 was also active in Escherichia coli and its L-form strain NC-7. Employing these established FP-labeled strains, we demonstrated distinct morphologies in the L-form bacteria in a quantitative manner. Given cell-wall-deficient bacteria are considered protocell and synthetic cell models, the generated cell lines in our work could be valuable for L-form-based research.
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Affiliation(s)
| | | | | | | | | | | | - Jian Xu
- Laboratory of Biology and Information Science, School of Life Sciences, East China Normal University, Shanghai 200062, China
| | - Tetsuya Yomo
- Laboratory of Biology and Information Science, School of Life Sciences, East China Normal University, Shanghai 200062, China
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Serizawa T, Yamaguchi S, Sugiura K, Marten R, Yamamoto A, Hata Y, Sawada T, Tanaka H, Tanaka M. Antibacterial Synthetic Nanocelluloses Synergizing with a Metal-Chelating Agent. ACS APPLIED BIO MATERIALS 2024; 7:246-255. [PMID: 37967519 PMCID: PMC10792664 DOI: 10.1021/acsabm.3c00846] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/02/2023] [Accepted: 11/02/2023] [Indexed: 11/17/2023]
Abstract
Antibacterial materials composed of biodegradable and biocompatible constituents that are produced via eco-friendly synthetic strategies will become an attractive alternative to antibiotics to combat antibiotic-resistant bacteria. In this study, we demonstrated the antibacterial properties of nanosheet-shaped crystalline assemblies of enzymatically synthesized aminated cellulose oligomers (namely, surface-aminated synthetic nanocelluloses) and their synergy with a metal-chelating antibacterial agent, ethylenediaminetetraacetic acid (EDTA). Growth curves and colony counting assays revealed that the surface-aminated cellulose assemblies had an antibacterial effect against Gram-negative Escherichia coli (E. coli). The cationic assemblies appeared to destabilize the cell wall of E. coli through electrostatic interactions with anionic lipopolysaccharide (LPS) molecules on the outer membrane. The antibacterial properties were significantly enhanced by the concurrent use of EDTA, which potentially removed metal ions from LPS molecules, resulting in synergistic bactericidal effects. No antibacterial activity of the surface-aminated cellulose assemblies was observed against Gram-positive Staphylococcus aureus even in the presence of EDTA, further supporting the contribution of electrostatic interactions between the cationic assemblies and anionic LPS to the activity against Gram-negative bacteria. Analysis using quartz crystal microbalance with dissipation monitoring revealed the attractive interaction of the surface-aminated cellulose assembly with LPS Ra monolayers artificially produced on the device substrate.
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Affiliation(s)
- Takeshi Serizawa
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Saeko Yamaguchi
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kai Sugiura
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Ramona Marten
- Physical
Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, Heidelberg D69120, Germany
- Center
for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, Kyoto 606-8501, Japan
| | - Akihisa Yamamoto
- Center
for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, Kyoto 606-8501, Japan
| | - Yuuki Hata
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Toshiki Sawada
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroshi Tanaka
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Motomu Tanaka
- Physical
Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, Heidelberg D69120, Germany
- Center
for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, Kyoto 606-8501, Japan
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45
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Pei S, Lai L, Sun W, Lu Z, Hao J, Liu Y, Wu W, Guan S, Su X. Discovery of novel tetrahydrobenzothiophene derivatives as MSBA inhibitors for antimicrobial agents. Bioorg Chem 2024; 142:106932. [PMID: 37913586 DOI: 10.1016/j.bioorg.2023.106932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 11/03/2023]
Abstract
The incidence of infections caused by drug-resistant bacteria has been one of the most serious health threats in the past and is substantially increasing in an alarming rate. Therefore, the development of new antimicrobial agents to combat bacterial resistance effectively is urgent. This study focused on the design and synthesis of 40 novel tetrahydrobenzothiophene amide/sulfonamide derivatives and their antibacterial activities were evaluated. Compounds 2p, 6p, and 6 s exhibited significant inhibitory effects on the growth of bacteria. To assess their safety, the cytotoxicity of the compounds was assessed using human normal liver cells, revealing that compound 6p has lower cytotoxicity. A mouse wound healing experiment demonstrated that compound 6p effectively improved wound infection induced by trauma and accelerated the healing process. Compound 6p holds promise as a potential therapeutic agent for combating bacterial infections.
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Affiliation(s)
- Shuchen Pei
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China.
| | - Lin Lai
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Wanlin Sun
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Zhaoyang Lu
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Jielei Hao
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
| | - Yuheng Liu
- National Engineering Research Center of Immunological Products, Third Military Medical University, Chongqing 400038, PR China; Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Wen Wu
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing 404120, PR China.
| | - Shan Guan
- National Engineering Research Center of Immunological Products, Third Military Medical University, Chongqing 400038, PR China.
| | - Xiaoyan Su
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China
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46
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Chang B, Chen J, Bao J, Sun T, Cheng Z. Molecularly Engineered Room-Temperature Phosphorescence for Biomedical Application: From the Visible toward Second Near-Infrared Window. Chem Rev 2023; 123:13966-14037. [PMID: 37991875 DOI: 10.1021/acs.chemrev.3c00401] [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: 11/24/2023]
Abstract
Phosphorescence, characterized by luminescent lifetimes significantly longer than that of biological autofluorescence under ambient environment, is of great value for biomedical applications. Academic evidence of fluorescence imaging indicates that virtually all imaging metrics (sensitivity, resolution, and penetration depths) are improved when progressing into longer wavelength regions, especially the recently reported second near-infrared (NIR-II, 1000-1700 nm) window. Although the emission wavelength of probes does matter, it is not clear whether the guideline of "the longer the wavelength, the better the imaging effect" is still suitable for developing phosphorescent probes. For tissue-specific bioimaging, long-lived probes, even if they emit visible phosphorescence, enable accurate visualization of large deep tissues. For studies dealing with bioimaging of tiny biological architectures or dynamic physiopathological activities, the prerequisite is rigorous planning of long-wavelength phosphorescence, being aware of the cooperative contribution of long wavelengths and long lifetimes for improving the spatiotemporal resolution, penetration depth, and sensitivity of bioimaging. In this Review, emerging molecular engineering methods of room-temperature phosphorescence are discussed through the lens of photophysical mechanisms. We highlight the roles of phosphorescence with emission from visible to NIR-II windows toward bioapplications. To appreciate such advances, challenges and prospects in rapidly growing studies of room-temperature phosphorescence are described.
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Affiliation(s)
- Baisong Chang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jie Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jiasheng Bao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264000, China
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Han Y, Li J, Zheng L, Chen Y, Yang Y, Liu K, Zhang Y, Gao M. Supramolecular pyrrole radical cations for bacterial theranostics. Biomater Sci 2023; 12:199-205. [PMID: 37982447 DOI: 10.1039/d3bm01472j] [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: 11/21/2023]
Abstract
Bacterial infections with emerging resistance to antibiotics require urgent development of antibacterial agents with new core skeletons. Recently, a series of antibacterial agents have been reported based on positively charged organic groups, such as ammonium, guanidine, and phosphonium groups, which can selectively bind and destroy negatively charged bacterial membranes. To achieve imaging-guided precise antibacterial therapy, these positively charged organic groups usually require further decoration with imaging modalities, such as fluorescence. However, most fluorophores with electron-closed shell structures usually suffer from tedious synthetic procedures for preparation. We herein prepare a series of positively charged and deep-red fluorescent supramolecular pyrrole radical cations (P˙+-CB[7]) based on the simple mixing of pyrroles and CB[7] in water under air. The readily available deep-red fluorescent P˙+-CB[7] can not only be used for selective imaging and killing of live Gram-positive bacteria with excellent biocompatibility, but also for imaging of dead Gram-negative bacteria killed by drugs and in vivo monitoring of phagocytosis of bacteria by innate immune cells in zebrafish. It is believed that the deep-red fluorescent pyrrole radical cations as a new core skeleton are promising in bacterial theranostics.
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Affiliation(s)
- Yue Han
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China.
| | - Jing Li
- School of Medicine, South China University of Technology, Guangzhou 510006, China.
| | - Lihua Zheng
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China.
| | - Yunhua Chen
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China.
| | - Yan Yang
- Foshan University, Foshan 528225, China.
| | - Kai Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China.
| | - Yiyue Zhang
- School of Medicine, South China University of Technology, Guangzhou 510006, China.
| | - Meng Gao
- National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510006, China.
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Zhang Z, Yang T, Wang J, Yu Z, Qiao Y, Wang C, Yue Z, Wu H. Hollow Mesoporous Molybdenum Single-Atom Nanozyme-Based Reactor for Enhanced Cascade Catalytic Antibacterial Therapy. Int J Nanomedicine 2023; 18:7209-7223. [PMID: 38076729 PMCID: PMC10710243 DOI: 10.2147/ijn.s438278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Purpose The remarkable peroxidase-like activity of single-atom nanozymes (SAzymes) allows them to catalyze the conversion of H2O2 to •OH, rendering them highly promising for antibacterial applications. However, their practical in vivo application is hindered by the near-neutral pH and insufficient H2O2 levels present in physiological systems. This study was aimed at developing a SAzyme-based nanoreactor and investigating its in vivo antibacterial activity. Methods We developed a hollow mesoporous molybdenum single-atom nanozyme (HMMo-SAzyme) using a controlled chemical etching approach and pyrolysis strategy. The HMMo-SAzyme not only exhibited excellent catalytic activity but also served as an effective nanocarrier. By loading glucose oxidase (GOx) with HMMo-SAzyme and encapsulating it with hyaluronic acid (HA), a nanoreactor (HMMo/GOx@HA) was constructed as glucose-triggered cascade catalyst for combating bacterial infection in vivo. Results Hyaluronidase (HAase) at the site of infection degraded HA, allowing GOx to convert glucose into gluconic acid and H2O2. An acid environment significantly enhanced the catalytic activity of HMMo-SAzyme to promote the further catalytic conversion of H2O2 to •OH for bacterial elimination. In vitro and in vivo experiments demonstrated that the nanoreactor had excellent antibacterial activity and negligible biological toxicity. Conclusion This study represents a significant advancement in developing a cascade catalytic system with high efficiency based on hollow mesoporous SAzyme, promising the advancement of biological applications of SAzyme.
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Affiliation(s)
- Zhijun Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi’an, People’s Republic of China
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
| | - Tiehong Yang
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
| | - Jingwei Wang
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
| | - Zhe Yu
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
| | - Youbei Qiao
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
| | - Chaoli Wang
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
| | - Zhenggang Yue
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xi’an, People’s Republic of China
| | - Hong Wu
- Department of Medicine Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi’an, People’s Republic of China
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49
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Jiang W, Zhou M, Chen S, Xie J, Chen M, Zhang H, Wu Y, Chen X, Liu R. Peptide-Mimicking Poly(2-oxazoline)s Possessing Potent Antifungal Activity and BBB Penetrating Property to Treat Invasive Infections and Meningitis. J Am Chem Soc 2023; 145:25753-25765. [PMID: 37966432 DOI: 10.1021/jacs.3c09240] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Invasive fungal infections, including meningitis, cause a high mortality rate due to few available antifungal drugs and frequently associated side effects and quick emergence of drug-resistant fungi. The restrictive permeability of the blood-brain barrier (BBB) further limits the efficacy of antifungal agents substantially in treating meningitis. Hereby, we design and synthesize guanidinium-functionalized poly(2-oxazoline)s by mimicking cell-penetrating peptides. The optimal polymer, PGMeOx10 bearing a methylene spacer arm, displays potent activities against the drug-resistant fungi and biofilm, negligible toxicity, and insusceptibility to antimicrobial resistance. Moreover, PGMeOx10 can break BBB retractions to exert promising antifungal functions in the brain. PGMeOx10 demonstrates potent in vivo antifungal therapeutic efficacy in mouse models including skin infection, systemic infections, and meningitis. PGMeOx10 effectively rescues infected mice and reduces fungal burden and inflammation in the brain. These results and the excellent biosafety of poly(2-oxazoline)s indicate the effectiveness and potential of our strategy to design promising antifungal agents in treating systemic infections and meningitis.
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Affiliation(s)
- Weinan Jiang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Min Zhou
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Sheng Chen
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Jiayang Xie
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Minzhang Chen
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Haodong Zhang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Yueming Wu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Xin Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Runhui Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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50
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Tian J, Li B, Zhang F, Yao Z, Song W, Tang Y, Ping Y, Liu B. Activatable Type I Photosensitizer with Quenched Photosensitization Pre and Post Photodynamic Therapy. Angew Chem Int Ed Engl 2023; 62:e202307288. [PMID: 37681940 DOI: 10.1002/anie.202307288] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/09/2023]
Abstract
The phototoxicity of photosensitizers (PSs) pre and post photodynamic therapy (PDT), and the hypoxic tumor microenvironment are two major problems limiting the application of PDT. While activatable PSs can successfully address the PS phototoxicity pre PDT, and type I PS can generate reactive oxygen species (ROS) effectively in hypoxic environment, very limited approaches are available for addressing the phototoxicity post PDT. There is virtually no solution available to address all these issues using a single design. Herein, we propose a proof-of-concept on-demand switchable photosensitizer with quenched photosensitization pre and post PDT, which could be activated only in tumor hypoxic environment. Particularly, a hypoxia-normoxia cycling responsive type I PS TPFN-AzoCF3 was designed to demonstrate the concept, which was further formulated into TPFN-AzoCF3 nanoparticles (NPs) using DSPE-PEG-2000 as the encapsulation matrix. The NPs could be activated only in hypoxic tumors to generate type I ROS during PDT treatment, but remain non-toxic in normal tissues, pre or after PDT, thus minimizing side effects and improving the therapeutic effect. With promising results in in vitro and in vivo tumor treatment, this presented strategy will pave the way for the design of more on-demand switchable photosensitizers with minimized side effects in the future.
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Affiliation(s)
- Jianwu Tian
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5 A Engineering Drive 1, Singapore, 117411, Singapore
| | - Bowen Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5 A Engineering Drive 1, Singapore, 117411, Singapore
| | - Fu Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zhuo Yao
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Wentao Song
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5 A Engineering Drive 1, Singapore, 117411, Singapore
| | - Yufu Tang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5 A Engineering Drive 1, Singapore, 117411, Singapore
| | - Yuan Ping
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5 A Engineering Drive 1, Singapore, 117411, Singapore
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