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<p>Skin repair is a global concern that requires multifunctional wound healing platforms that accelerate healing and shield the wound from external contamination. Phycocyanin (C-PC) is a natural protein that shows favorable characteristics for skin repair. The present study aims to investigate the synergistic wound healing potential of probiotic <i>Pediococcus pentosaceus</i> and C-PC hydrogel formulation. C-PC whey protein nanofibrils (WPINF) were first prepared and evaluated for particle size, % entrapment efficiency, and zeta potential. Selected WPINF was used to prepare several hydrogel formulations which were further evaluated for physical properties and in vitro C-PC release. Formulation with acceptable physical properties and C-PC release was studied for oxidative stress markers, antioxidant biomarkers, and wound healing effect in animal models. WPINF had acceptable particle size (26.59–153.5&#xa0;nm), % EE (65.76–95.98%), and zeta potential (22.3–26.1 mV). The developed hydrogels exhibited neutral pH values (6.97–7.10), optimal spreadability (5.60–7.50&#xa0;cm), and viscosity (123–209&#xa0;Pa). HEC-based hydrogel (F1) showed superior C-PC release which was found to follow Higuchi diffusion. In vivo, hydrogel formulations (with and without probiotic) showed significantly reduced oxidative stress markers, with MDA reduced by 54.76–98.58% and antioxidant biomarkers (GSH and TAC) ensuring successful delivery of therapeutic compounds. Histological analysis showed improved re-epithelialization, reduced inflammation, and well-formed granulation tissue in treated groups, with probiotic-C-PC group demonstrating additional immunomodulatory effects. The study highlights promising potential of C-PC-probiotic hydrogels as a safe&#xa0;and effective biotherapeutics for wound healing, supporting their advancement into further clinical investigations to validate their efficacy in humans.</p>

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Innovative Hydrogel Formulation Combining Phycocyanin and Probiotic for Enhancing Skin Regeneration and Accelerated Wound Healing: A Preclinical Investigation in Wistar Rats

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月12日

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  • Asmaa Negm El-Dein,
  • Tarek N. Soliman,
  • Asmaa Ezzat,
  • Marwa Adel Abd El-Fattah,
  • Hanan Farouk Aly,
  • Eman A. Younis,
  • Nasser S. Flefil

摘要

Skin repair is a global concern that requires multifunctional wound healing platforms that accelerate healing and shield the wound from external contamination. Phycocyanin (C-PC) is a natural protein that shows favorable characteristics for skin repair. The present study aims to investigate the synergistic wound healing potential of probiotic Pediococcus pentosaceus and C-PC hydrogel formulation. C-PC whey protein nanofibrils (WPINF) were first prepared and evaluated for particle size, % entrapment efficiency, and zeta potential. Selected WPINF was used to prepare several hydrogel formulations which were further evaluated for physical properties and in vitro C-PC release. Formulation with acceptable physical properties and C-PC release was studied for oxidative stress markers, antioxidant biomarkers, and wound healing effect in animal models. WPINF had acceptable particle size (26.59–153.5 nm), % EE (65.76–95.98%), and zeta potential (22.3–26.1 mV). The developed hydrogels exhibited neutral pH values (6.97–7.10), optimal spreadability (5.60–7.50 cm), and viscosity (123–209 Pa). HEC-based hydrogel (F1) showed superior C-PC release which was found to follow Higuchi diffusion. In vivo, hydrogel formulations (with and without probiotic) showed significantly reduced oxidative stress markers, with MDA reduced by 54.76–98.58% and antioxidant biomarkers (GSH and TAC) ensuring successful delivery of therapeutic compounds. Histological analysis showed improved re-epithelialization, reduced inflammation, and well-formed granulation tissue in treated groups, with probiotic-C-PC group demonstrating additional immunomodulatory effects. The study highlights promising potential of C-PC-probiotic hydrogels as a safe and effective biotherapeutics for wound healing, supporting their advancement into further clinical investigations to validate their efficacy in humans.