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Huang K, Liu W, Wei W, Zhao Y, Zhuang P, Wang X, Wang Y, Hu Y, Dai H. Photothermal Hydrogel Encapsulating Intelligently Bacteria-Capturing Bio-MOF for Infectious Wound Healing. ACS NANO 2022; 16:19491-19508. [PMID: 36321923 DOI: 10.1021/acsnano.2c09593] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Chronic wounds are characterized by long-term inflammation and persistent infection, which make them difficult to heal. Therefore, an urgent desire is to develop a multifunctional wound dressing that can prevent wound infection and promote wound healing by creating a favorable microenvironment. In this study, a curcumin-based metal-organic framework (QCSMOF-Van), loaded with vancomycin and coated with quaternary ammonium salt chitosan (QCS), was prepared. Multifunctional composite hydrogels were conveniently synthesized by combining methacrylic anhydride modified gelatin and methacrylic anhydride modified oxidized sodium alginate with QCSMOF-Van through radical polymerization and Schiff base reaction. It is important to note that the QCSMOF-Van could capture bacteria through the positive charges on the surface of QCS. In this process, due to the synergistic effect of broad-spectrum antibacterial Zn2+ and vancomycin, the metabolism of bacteria was well inhibited, and the efficient capturing and rapid killing of bacteria were achieved. The QCSMOF-Van hydrogels could precisely regulate the balance of M1/M2 phenotypes of macrophages, thereby promoting the regeneration of nerves and blood vessels, which promotes the rapid healing of chronic wounds. This advanced cascade management strategy for tissue regeneration highlights the potential of multifunctional composite hydrogels in chronic wound dressings.
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Affiliation(s)
- Kai Huang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan430070, China
| | - Wenbin Liu
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, Xiangya Hospital, Central South University, Changsha410008, China
| | - Wenying Wei
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan430070, China
| | - Yanan Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan430070, China
| | - Pengzhen Zhuang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan430070, 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, Wuhan430070, China
| | - Youfa 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, Wuhan430070, China
| | - Yihe Hu
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou310003, 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, Wuhan430070, China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan528200, China
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Maeda T, Yamamoto Y, Murao N, Hayashi T, Kimura C, Matsui S, Saito T, Matsui H, Osawa M, Funayama E. Maggot debridement therapy in critical limb ischaemia: a case study. J Wound Care 2021; 29:S28-S32. [PMID: 33320762 DOI: 10.12968/jowc.2020.29.sup12.s28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE In critical limb ischaemia (CLI), first-line therapy is revascularisation, but alternative treatment options are needed in certain cases. Maggot debridement therapy (MDT) is historically considered to be contraindicated in ischaemic ulcers. Wound care in patients with CLI is becoming increasingly diverse with the development of novel revascularisation strategies; therefore, CLI now needs to be reconsidered as an indication for MDT. METHOD We retrospectively reviewed five legs with CLI (five male, one female) treated with MDT between January 2013 and December 2017. Changes in skin perfusion pressure (SPP) around the ulcer before and after MDT were evaluated. One or two cycles of MDT were performed (eight in total). We also evaluated the proportion of necrotic tissue in the ulcer and the presence of exposed necrotic bone. The proportion of necrotic tissue in the ulcer was classified as NT 1+ (<25%), NT 2+ (25-50%), NT 3+ (50-75%) or NT 4+ (>75%). RESULTS When the proportion of necrotic tissue was >50%, with no exposed necrotic bone in the wound, an increase in SPP was observed after five (62.5%) of eight cycles of MDT. And with a proportion of necrotic tissue of <25% and/or exposed necrotic bone in the wound, a decrease in SPP was observed after three (37.5%) of eight cycles. Wound healing was accelerated in the presence of increased SPP. CONCLUSION Effective MDT with increased SPP requires an ulcerative state of necrotic tissue grade > NT 3+, with no exposed necrotic bone.
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Affiliation(s)
- Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan
| | - Naoki Murao
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan
| | - Toshihiko Hayashi
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan
| | - Chu Kimura
- Department of Plastic and Reconstructive Surgery, Hakodate General Central Hospital, Hokkaido, Japan
| | - Suguru Matsui
- Center of Limb Salvage and Wound Care, Souen Central Hospital, Sapporo, Hokkaido, Japan
| | - Tatsuya Saito
- Center of Limb Salvage and Wound Care, Souen Central Hospital, Sapporo, Hokkaido, Japan
| | - Hotaka Matsui
- Center of Limb Salvage and Wound Care, Souen Central Hospital, Sapporo, Hokkaido, Japan
| | - Masayuki Osawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan
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Pu Z, Shimizu Y, Tsuzuki K, Suzuki J, Hayashida R, Kondo K, Fujikawa Y, Unno K, Ohashi K, Takefuji M, Bando YK, Ouchi N, Calvert JW, Shibata R, Murohara T. Important Role of Concomitant Lymphangiogenesis for Reparative Angiogenesis in Hindlimb Ischemia. Arterioscler Thromb Vasc Biol 2021; 41:2006-2018. [PMID: 33910373 DOI: 10.1161/atvbaha.121.316191] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Zhongyue Pu
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Yuuki Shimizu
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Kazuhito Tsuzuki
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Junya Suzuki
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Ryo Hayashida
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Kazuhisa Kondo
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Yusuke Fujikawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Kazumasa Unno
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Koji Ohashi
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Mikito Takefuji
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Yasuko K Bando
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Noriyuki Ouchi
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - John W Calvert
- Division of Cardiothoracic Surgery, Department of Surgery, Carlyle Fraser Heart Center, Emory University School of Medicine, Atlanta, GA (J.W.C.)
| | - Rei Shibata
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan (Z.P., Y.S., K.T., J.S., R.H., K.K., Y.F., K.U., K.O., M.T., Y.K.B., N.O., R.S., T.M.)
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Masunaga A, Kawahara T, Morita H, Nakazawa K, Tokunaga Y, Akita S. Fatty acid potassium improves human dermal fibroblast viability and cytotoxicity, accelerating human epidermal keratinocyte wound healing in vitro and in human chronic wounds. Int Wound J 2021; 18:467-477. [PMID: 33433959 PMCID: PMC8273623 DOI: 10.1111/iwj.13547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/19/2020] [Accepted: 12/31/2020] [Indexed: 12/11/2022] Open
Abstract
Effective cleaning of a wound promotes wound healing and favours wound care as it can prevent and control biofilms. The presence of biofilm is associated with prolonged wound healing, increased wound propensity to infection, and delayed wound closure. Anionic potassium salts of fatty acids are tested with commonly used anionic surfactants, such as sodium laureth sulphate (SLES) and sodium lauryl sulphate/sodium dodecyl sulphate (SLS/SDS). The normal human dermal cells demonstrated significantly greater viability in fatty acid potassium, including caprylic acid (C8), capric acid (C10), lauric acid (C12), oleic acid (C18:1), and linoleic acid (C18:2), than in SLES or SLS after a 24-hour incubation. Cytotoxicity by LDH assay in a 5-minute culture in fatty acid potassium was significantly lower than in SLES or SLS. in vitro wound healing of human epidermal keratinocytes during the scratch assay in 24-hour culture was more significantly improved by fatty acid treatment than by SLES or SLS/SDS. In a live/dead assay of human epidermal keratinocytes, C8K and C18:1K demonstrated only green fluorescence, indicating live cells, whereas synthetic surfactants, SLES and SLS, demonstrated red fluorescence on staining with propidium iodide, indicating dead cells after SLES and SLS/SDS treatment. Potassium salts of fatty acids are useful wound cleaning detergents that do not interfere with wound healing, as observed in the scratch assay using human epidermal keratinocytes. As potassium salts of fatty acids are major components of natural soap, which are produced by natural oil and caustic potash using a saponification method, this may be clinically important in wound and peri-wound skin cleaning. In human chronic wounds, natural soap containing fatty acid potassium increased tissue blood flow based on laser speckle flowgraphs after 2 weeks (P < .05), in addition to removing the eschars and debris. Wound cleansing by natural soap of fatty acid potassium is beneficial for wound healing.
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Affiliation(s)
| | | | | | - Kohji Nakazawa
- Department of Life and Environment Engineering, The University of Kitakyushu, Kitakyushu, Japan
| | - Yuto Tokunaga
- Department of Life and Environment Engineering, The University of Kitakyushu, Kitakyushu, Japan
| | - Sadanori Akita
- Department of Plastic Surgery, Wound Repair and Regeneration, Fukuoka University, Fukuoka, Japan
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