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Ye G, Jimo R, Lu Y, Kong Z, Axi Y, Huang S, Xiong Y, Zhang L, Chen G, Xiao Y, Li P, Gou K, Zeng R. Multifunctional natural microneedles based methacrylated Bletilla striata polysaccharide for repairing chronic wounds with bacterial infections. Int J Biol Macromol 2024; 254:127914. [PMID: 37939765 DOI: 10.1016/j.ijbiomac.2023.127914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/10/2023]
Abstract
The expeditious healing of chronic wounds with bacterial infections poses a formidable challenge in clinical practice because of the persistent bacterial presence, excessive inflammation, and the accumulation of reactive oxygen species (ROS) in clinical practice. Thus, in this study, natural antimicrobial material microneedles (MNs) with multifunctional properties were prepared by adding peony leaf extract (PLE) into a matrix of methacrylated Bletilla striata polysaccharide (BSPMA) and methacrylated chitosan (CSMA) via cross-linking under ultra-violet light to accelerate the rapid healing of chronic wounds with bacterial infections. Results showed that BCP-MNs effectively inhibited the growth of Escherichia coli, Staphylococcus aureus, and methicillin-resistant S. aureus (MRSA) by disrupting bacterial cell membranes and accelerated the healing of infected wounds by enhancing cell migration, epidermal regeneration, pro-collagen deposition, and angiogenesis and reducing inflammation. Furthermore, BCP-MNs not only possessed good mechanical properties, stability, and biocompatibility but also showed potent antioxidant effects to eliminate excessive ROS accumulation in the wound bed. In conclusion, BCP-MNs possess multifunctional wound-healing properties and can serve as excellent wound dressing in to treat infected wounds.
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Affiliation(s)
- Gengsheng Ye
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Rezhemu Jimo
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Yuanhui Lu
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Zilin Kong
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Yongbu Axi
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Shengting Huang
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Ying Xiong
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China
| | - Liang Zhang
- ChengDu Institute for Drug Control & NMPA Key Laboratory for Quality Monitoring and Evaluation of Traditional Chinese Medicine (Chinese Materia Medica), Chengdu 610000, China
| | - Gongzheng Chen
- Sichuan Credit Pharmaceutical Co., Ltd., Luzhou 646100, China
| | - Yao Xiao
- Heishui County Science and Technology and Agriculture Animal Husbandry Bureau, Aba Tibetan Autonomous Prefecture 623500, China
| | - Ping Li
- Chengdu integrated TCM &Western Medicine Hospital, Chengdu 610017, China
| | - Kaijun Gou
- Institute of Tibetan Plateau, Southwest Minzu University, Chengdu 610225, China; ChengDu Institute for Drug Control & NMPA Key Laboratory for Quality Monitoring and Evaluation of Traditional Chinese Medicine (Chinese Materia Medica), Chengdu 610000, China; Sichuan Credit Pharmaceutical Co., Ltd., Luzhou 646100, China; Chengdu integrated TCM &Western Medicine Hospital, Chengdu 610017, China
| | - Rui Zeng
- College of Pharmacy, Southwest Minzu University, Chengdu 610225, China; ChengDu Institute for Drug Control & NMPA Key Laboratory for Quality Monitoring and Evaluation of Traditional Chinese Medicine (Chinese Materia Medica), Chengdu 610000, China.
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