1. α-Lactalbumin based scaffolds for infected wound healing and tissue regeneration.
- Author
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Khan NU, Chengfeng X, Jiang MQ, Akram W, Khan ZU, Razzaq A, Guohua M, Rui Z, Ni J, Ullah A, Iqbal H, and Jin ZM
- Subjects
- Animals, Tissue Scaffolds chemistry, Escherichia coli drug effects, Mice, Nanofibers chemistry, Methicillin-Resistant Staphylococcus aureus drug effects, Collagen, Catechin analogs & derivatives, Catechin chemistry, Catechin pharmacology, Catechin administration & dosage, Male, Cephalexin pharmacology, Cephalexin chemistry, Cephalexin administration & dosage, Fibroblasts drug effects, Regeneration drug effects, Humans, Cell Proliferation drug effects, Escherichia coli Infections drug therapy, Staphylococcal Infections drug therapy, Cell Movement drug effects, Rats, Wound Healing drug effects, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Anti-Bacterial Agents administration & dosage, Lactalbumin chemistry, Lactalbumin pharmacology
- Abstract
Interruption of wound healing by multi-drug resistant-bacterial infection is a harmful issue for the worldwide health care system, and conventional treatment approaches may not resolve this issue due to antimicrobial resistance. So, there is an unmet need to develop scaffolds with intrinsic wound healing properties to combat bacterial-infected wounds. Inspired by the α-lactalbumin's (Lalb's) ability to promote collagen synthesis, we herein electrospun Lalb with cephalexin (CPL) and epigallocatechin (EP) to produce nanofibers (CE-Lalb NFs) to solve this issue. The CE-Lalb NFs were prepared using the electrospinning technique and subjected to physicochemical characterizations, in vitro, and in vivo assessments. The CE-Lalb NFs promoted fibroblast migration, proliferation, and collagen synthesis, while CPL/EP annihilated MRSA and E. coli infections. Physicochemical characterizations proved the successful fabrication and doping of CE-Lalb NFs. Antimicrobial assays and fractional inhibitory concentration index (FICI) declared synergistic antibacterial activity of CE-Lalb NFs against MRSA and E. coli. The in vivo and immunohistochemical data evidenced its exceptional potential for wound healing, promoting growth factor, collagen synthesis, and reduced scar formation. The presence of mature collagen, fewer inflammatory cytokines, increased expression of blood vessels, and low expression of IL-6 at the wound site support in vitro and in vivo results. In our view, the tailored scaffold is the next step for personalized wound dressings that could meet patients with infected wounds' unmet needs by the subscription of noninvasive and easily navigable therapeutic options., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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