Therapeutic Potential of Mangosteen Pericarp Extract-Loaded Liposomes against Superficial Skin Infection Caused by

Seong-Yeop Kim1, Seong-Yong Park1, Jung-Hwa Lee1

  • 1Department of Microbiology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea.

Insights

Mangosteen pericarp extract (MPE)-loaded liposomes show promising antibacterial activity against Staphylococcus species, effectively treating skin infections in companion animals. These liposomes offer a potential new topical treatment for pyoderma.

Area of Science:

  • Veterinary Dermatology
  • Nanotechnology in Medicine
  • Natural Product Chemistry

Background:

  • Staphylococcus species are common causes of skin infections in companion animals.
  • Alpha-mangostin (α-MG) from mangosteen pericarp exhibits antibacterial properties.
  • Developing effective topical treatments for animal pyoderma is crucial.

Purpose of the Study:

  • To investigate the antibacterial activity of α-MG-rich mangosteen pericarp extract (MPE)-loaded liposomes against Staphylococcus isolates.
  • To evaluate the therapeutic potential of these liposomes in a murine model of superficial skin infection.
  • To assess the safety and efficacy of the liposomal formulation for treating companion animal skin diseases.

Main Methods:

  • Purification of α-MG-rich MPE and complexation with gamma-cyclodextrin (γ-CD).
  • Preparation of nanoliposomes encapsulating MPE and γ-CD complexes.
  • In vitro determination of Minimum Inhibitory Concentrations (MICs) and Minimum Bactericidal Concentrations (MBCs).
  • In vivo evaluation of therapeutic efficacy in a murine skin infection model caused by S. pseudintermedius.

Main Results:

  • MPE-loaded liposomes demonstrated significant in vitro antibacterial activity against clinical Staphylococcus isolates.
  • Consistent MICs and MBCs were observed, with no activity against Gram-negative bacteria.
  • In vivo studies showed reduced bacterial load, smaller lesion sizes, and epidermal barrier reconstruction.
  • The liposomal formulation exhibited no cytotoxicity in canine progenitor epidermal keratinocyte cells.

Conclusions:

  • MPE-loaded liposomes are effective against Staphylococcus-induced skin infections in a preclinical model.
  • The liposomal formulation shows potential for developing a safe and effective topical treatment for superficial pyoderma in companion animals.
  • This approach leverages natural compounds for veterinary dermatological applications.

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