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Liu Q, Wang C, Cheng M, Hu L, Zhang Z, Sun Q, Wang S, Fan Y, Pan P, Chen J. Self-Healing Conductive Hydrogels with Dynamic Dual Network Structure Accelerate Infected Wound Healing via Photothermal Antimicrobial and Regulating Inflammatory Response. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30776-30792. [PMID: 38848491 DOI: 10.1021/acsami.4c04113] [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: 06/09/2024]
Abstract
Wound infections are an escalating clinical challenge with continuous inflammatory response and the threat of drug-resistant bacteria. Herein, a series of self-healing conductive hydrogels were designed based on carboxymethyl chitosan/oxidized sodium alginate/polymerized gallic acid/Fe3+ (CMC/OSA/pGA/Fe3+, COGFe) for promoting infected wound healing. The Schiff base and catechol-Fe3+ chelation in the dynamical dual network structure of the hydrogels endowed dressings with good toughness, conductivity, adhesion, and self-healing properties, thus flexibly adapting to the deformation of skin wounds. In terms of ultraviolet (UV) resistance and scavenging of reactive oxygen species (ROS), the hydrogels significantly reduced oxidative stress at the wound site. Additionally, the hydrogels with photothermal therapy (PTT) achieved a 95% bactericidal rate in 5 min of near-infrared (NIR) light radiation by disrupting the bacterial cell membrane structure through elevated temperature. Meanwhile, the inherent antimicrobial properties of GA could reduce healthy tissue damage caused by excessive heat. The composite hydrogels could effectively promote the proliferation and migration of fibroblasts and possess good biocompatibility and hemostatic effect. In full-thickness infected wound repair experiments in rats, the COGFe5 hydrogel combined with NIR effectively killed bacteria, modulated macrophage polarization (M1 to M2 phenotype) to improve the immune microenvironment of the wound, and shortened the repair time by accelerating the expression of collagen deposition (TGF-β) and vascular factors (CD31). This combined therapy might provide a prospective strategy for infectious wound treatment.
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Affiliation(s)
- Qing Liu
- Marine College, Shandong University, Weihai 264209, China
| | - Chunxiao Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Meiqi Cheng
- Marine College, Shandong University, Weihai 264209, China
| | - Le Hu
- Marine College, Shandong University, Weihai 264209, China
| | - Ziyue Zhang
- Marine College, Shandong University, Weihai 264209, China
| | - Qisen Sun
- Marine College, Shandong University, Weihai 264209, China
| | - Shaoshen Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Yinuo Fan
- Marine College, Shandong University, Weihai 264209, China
| | - Panpan Pan
- Marine College, Shandong University, Weihai 264209, China
| | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China
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Samie A, Alavian H, Vafaei-Pour Z, Mohammadpour AH, Jafarian AH, Danesh NM, Abnous K, Taghdisi SM. Accelerated Wound Healing with a Diminutive Scar through Cocrystal Engineered Curcumin. Mol Pharm 2023; 20:5090-5107. [PMID: 37624646 DOI: 10.1021/acs.molpharmaceut.3c00398] [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: 08/27/2023]
Abstract
Pharmaceutical cocrystals ( Regulatory Classification of Pharmaceutical Co-Crystals Guidance for Industry; Food and Drug Administration, 2018) are crystalline solids produced through supramolecular chemistry to modulate the physicochemical properties of active pharmaceutical ingredients (APIs). Despite their extensive development in interdisciplinary sciences, this is a pioneering study on the efficacy of pharmaceutical cocrystals in wound healing and scar reducing. Curcumin-pyrogallol cocrystal (CUR-PYR) was accordingly cherry-picked since its superior physicochemical properties adequately compensate for limitative drawbacks of curcumin (CUR). CUR-PYR has been synthesized by a liquid-assisted grinding (LAG) method and characterized via FT-IR, DSC, and PXRD analyses. In vitro antibacterial study indicated that CUR-PYR cocrystal, CUR+PYR physical mixture (PM), and PYR are more effective against both Gram-negative (Pseudomonas aeruginosa and Escherichia coli) and Gram-positive (Staphylococcus aureus and Bacillus subtilis) bacteria in comparison with CUR. In vitro results also demonstrated that the viability of HDF and NIH-3T3 cells treated with CUR-PYR were improved more than those received CUR which is attributed to the effect of PYR in the form of cocrystal. The wound healing process has been monitored through a 15 day in vivo experiment on 75 male rats stratified into six groups: five groups treated by CUR-PYR+Vaseline (CUR-PYR.ung), CUR+PYR+Vaseline (CUR+PYR.ung), CUR+Vaseline (CUR.ung), PYR+Vaseline (PYR.ung), and Vaseline (VAS) ointments and a negative control group of 0.9% sodium chloride solution (NS). It was revealed that the wounds under CUR-PYR.ung treatment closed by day 12 postsurgery, while the wounds in other groups failed to reach the complete closure end point until the end of the experiment. Surprisingly, a diminutive scar (3.89 ± 0.97% of initial wound size) was observed in the CUR-PYR.ung treated wounds by day 15 after injury, followed by corresponding values for PYR.ung (12.08 ± 2.75%), CUR+PYR.ung (13.89 ± 5.02%), CUR.ung (16.24 ± 6.39%), VAS (18.97 ± 6.89%), and NS (20.33 ± 5.77%). Besides, investigating histopathological parameters including inflammation, granulation tissue, re-epithelialization, and collagen deposition signified outstandingly higher ability of CUR-PYR cocrystal in wound healing than either of its two constituents separately or their simple PM. It was concluded that desired solubility of the prepared cocrystal was essentially responsible for accelerating wound closure and promoting tissue regeneration which yielded minimal scarring. This prototype research suggests a promising application of pharmaceutical cocrystals for the purpose of wound healing.
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Affiliation(s)
- Ali Samie
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Hoda Alavian
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Zeinab Vafaei-Pour
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Amir Hooshang Mohammadpour
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Science, Mashhad 9177948954, Iran
| | - Amir Hossein Jafarian
- Cancer and Molecular Research Center, Department of Pathology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Noor Mohammad Danesh
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Khalil Abnous
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 9177948954, Iran
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Lin G, Gao W, Chen P, Sun W, Chizhik SA, Makhaniok AA, Melnikova GB, Kuznetsova TA. Atomic insights into thickness-dependent deformation mechanism and mechanical properties of Ag/PMMA ultra-thin nanofilms. NANOSCALE ADVANCES 2023; 5:4934-4949. [PMID: 37705765 PMCID: PMC10496913 DOI: 10.1039/d3na00295k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/02/2023] [Indexed: 09/15/2023]
Abstract
In this work, the nanoindentations on bilayer composite nanofilms composed of metal Ag and polymer PMMA were simulated using molecular dynamics. The effects of the thickness of Ag and PMMA on the elastic moduli of the composite films were analyzed from Hertz contact theory, dislocation evolution and atomic migration. The results show that the maximum penetration depth that the Hertz model could well describe is about 6 Å, and this limiting value is almost independent on the film thickness. The deformation mode of the Ag films gradually changes from bending mode to indentation mode with an increase in Ag thickness, which improves the elastic modulus of the composite films. The rule of mixtures could give a theoretical prediction about the elastic modulus of the composite film close to the nanoindentation, and Hertz theory could also be used as long as the thickness of Ag films exceeded a certain value. The introduction of a PMMA layer impedes the development of dislocation in the Ag layer and improves the elastic limit of the composite films. This work provides an important basis for experimentally measuring the overall elastic modulus of metal/polymer composite film based on nanoindentation or extracting the elastic modulus of metal film from the overall indentation response of the composite film.
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Affiliation(s)
- Gaojian Lin
- State Key Laboratory of Explosion Science and Technology, School of Mechantronic Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
- Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing 10081 China
| | - Wenpeng Gao
- State Key Laboratory of Explosion Science and Technology, School of Mechantronic Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
- Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing 10081 China
| | - Pengwan Chen
- State Key Laboratory of Explosion Science and Technology, School of Mechantronic Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
- Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing 10081 China
| | - Weifu Sun
- State Key Laboratory of Explosion Science and Technology, School of Mechantronic Engineering, Beijing Institute of Technology Beijing 100081 China
- Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120 China
- Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of Education Beijing 10081 China
| | - Sergei A Chizhik
- A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus Minsk 220072 Republic of Belarus
| | - Alexander A Makhaniok
- A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus Minsk 220072 Republic of Belarus
| | - Galina B Melnikova
- A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus Minsk 220072 Republic of Belarus
| | - Tatiana A Kuznetsova
- A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus Minsk 220072 Republic of Belarus
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Sheng W, Qin H, Wang T, Zhao J, Fang C, Zhang P, Liu P, Udduttula A, Zeng H, Chen Y. Advanced phosphocreatine-grafted chitosan hydrogel promote wound healing by macrophage modulation. Front Bioeng Biotechnol 2023; 11:1199939. [PMID: 37251563 PMCID: PMC10213409 DOI: 10.3389/fbioe.2023.1199939] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023] Open
Abstract
Background: The repair of wounds usually caused by trauma or other chronic diseases remained challenging in clinics due to the potential risk of inflammation and inadequate tissue regenerative properties. Among them, the behaviour of immune cells, such as macrophages, is critical in tissue repair. Materials and methods: In this study, a water-soluble phosphocreatine-grafted methacryloyl chitosan (CSMP) was synthesized with a one-step lyophilization method, followed by the fabrication of CSMP hydrogel with a photocrosslinked method. The microstructure, water absorption and mechanical properties for the hydrogels were investigated. Then, the macrophages were co-cultured with hydrogels and the pro-inflammatory factors and polarization markers for these macrophages were detected through real-time quantitative polymerase chain reaction (RT-qPCR), Western blot (WB), and flow cytometry methods. Finally, the CSMP hydrogel was implanted in a wound defect area in mice to test its ability to promote wound healing. Results: The lyophilized CSMP hydrogel had a porous structure with pores ranging in size from 200 to 400 μm, which was larger than the CSM hydrogel's. The lyophilized CSMP hydrogel possessed a higher water absorption rate compared with the CSM hydrogel. The compressive stress and modulus of these hydrogels were increased in the initial 7 days immersion and then gradually decreased during the in vitro immersion in PBS solution up to 21 days; the CSMP hydrogel showed a higher value in these parameters versus the CSM hydrogel. The CSMP hydrogel inhibited the expression of inflammatory factors such as interleukin-1β (IL-1β), IL-6, IL-12, and tumor necrosis factor-α (TNF-α) in an in vitro study cocultured with pro-inflammatory factors in pre-treated bone marrow-derived macrophages (BMM). The mRNA sequencing results showed that the CSMP hydrogel might inhibit the macrophages' M1 type polarization through the NF-κB signaling pathway. Furthermore, when compared to the control group, the CSMP hydrogel promoted more skin area repair in the mouse wound defect area, and inflammatory factors such as IL-1β, IL-6, and TNF-α were lower in the repaired tissue for the CSMP group. Conclusion: This phosphate-grafted chitosan hydrogel showed great promise for wound healing through regulating the macrophage's phenotype via the NF-κB signaling pathway.
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Affiliation(s)
- Weibei Sheng
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
| | - Haotian Qin
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
| | - Tiehua Wang
- Department of Emergency, Shenzhen People’s Hospital, Shenzhen, China
| | - Jin Zhao
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
| | - Chongzhou Fang
- Central Laboratory, Peking University Shenzhen Hospital, Shenzhen, China
| | - Peng Zhang
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
| | - Peng Liu
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
| | - Anjaneyulu Udduttula
- Centre of Biomaterials, Cellular & Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore, India
| | - Hui Zeng
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yingqi Chen
- Department of Bone & Joint Surgery, National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen, China
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