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Cascade encapsulation of antimicrobial peptides, exosomes and antibiotics in fibrin-gel for first-aid hemostasis and infected wound healing

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机构: [1]Yunnan Agr Univ, Coll Food Sci & Technol, 452 Fengyuan Rd, Kunming 650000, Peoples R China [2]Yunnan Agr Univ, Yunnan Key Lab Precis Nutr & Personalized Food Mfg, Kunming 650201, Peoples R China [3]First Peoples Hosp Yunnan Prov, Dept Cardiovasc Surg, 157 Jinbi Rd, Kunming 650032, Peoples R China [4]Kunming Univ Sci & Technol, Sch Med, 727 Jingming South Rd, Kunming 650000, Peoples R China [5]First Peoples Hosp Yunnan Prov, Yunnan Key Lab Innovat Applicat Tradit Chinese Med, Kunming 650032, Yunnan, Peoples R China
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关键词: Fibrin gel Edible rose Edible rose-derived exosome-like nanoparticles (ELNs) Exosome delivery Infected wound healing

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Wounding is one of the most common healthcare problems. Bioactive hydrogels have attracted much attention in first-aid hemostasis and wound healing due to their excellent biocompatibility, antibacterial properties, and prohealing bioactivity. However, their applications are limited by inadequate mechanical properties. In this study, we first prepared edible rose-derived exosome-like nanoparticles (ELNs) and used them to encapsulate antimicrobial peptides (AMP), abbreviated as ELNs(AMP). ELNs(AMP) showed superior intracellular antibacterial activity, 2.5 times greater than AMP, in in vitro cell infection assays. We then prepared and tested an FDA-approved fibrin-gel of fibrinogen and thrombin encapsulating ELNs(AMP) and novobiocin sodium salt (NB) (ELNs(AMP)/ NB-fibrin-gels). The fibrin gel showed a sustained release of ELNs(AMP) and NB over the eight days of testing. After spraying onto the skin, the formulation underwent in situ gelation and developed a stable patch with excellent hemostatic performance in a mouse liver injury model with hemostasis in 31 s, only 35.6 % of the PBS group. The fibrin gel exhibited pro-wound healing properties in the mouse-infected skin defect model. The thickness of granulation tissue and collagen of the ELNs(AMP)/NB-fibrin-gels group was 4.00, 6.32 times greater than that of the PBS group. In addition, the ELNs(AMP)/NB-fibrin-gels reduced inflammation (decreased mRNA levels of TNF-alpha, IL-1 beta, IL6, MCP1, and CXCL1) at the wound sites and demonstrated a biocompatible and biosafe profile. Thus, we have developed a hydrogel system with excellent hemostatic, antibacterial, and pro-wound healing properties, which may be a candidate for next-generation tissue regeneration with a wide clinical application for first-aid hemostasis and infected wound healing.

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出版当年[2024]版:
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大类 | 1 区 化学
小类 | 1 区 应用化学 1 区 高分子科学 2 区 生化与分子生物学
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出版当年[2023]版:
Q1 POLYMER SCIENCE Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Q1 CHEMISTRY, APPLIED
最新[2023]版:
Q1 POLYMER SCIENCE Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Q1 CHEMISTRY, APPLIED

影响因子: 最新[2023版] 最新五年平均 出版当年[2023版] 出版当年五年平均 出版前一年[2022版]

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第一作者机构: [1]Yunnan Agr Univ, Coll Food Sci & Technol, 452 Fengyuan Rd, Kunming 650000, Peoples R China [2]Yunnan Agr Univ, Yunnan Key Lab Precis Nutr & Personalized Food Mfg, Kunming 650201, Peoples R China
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通讯机构: [1]Yunnan Agr Univ, Coll Food Sci & Technol, 452 Fengyuan Rd, Kunming 650000, Peoples R China [2]Yunnan Agr Univ, Yunnan Key Lab Precis Nutr & Personalized Food Mfg, Kunming 650201, Peoples R China [3]First Peoples Hosp Yunnan Prov, Dept Cardiovasc Surg, 157 Jinbi Rd, Kunming 650032, Peoples R China [5]First Peoples Hosp Yunnan Prov, Yunnan Key Lab Innovat Applicat Tradit Chinese Med, Kunming 650032, Yunnan, Peoples R China
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