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Targeting Azole-Resistant Candida albicans: Tetrapeptide Tuftsin-Modified Liposomal Vaccine Induces Superior Immune

Masood A Khan1, Arif Khan1, Abdullah M Alnuqaydan1

  • 1Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraydah 51412, Saudi Arabia.

Vaccines
|June 27, 2025
PubMed
Abstract

Insights

A novel liposomal vaccine, Tuft-lip-WCAg, provides complete protection against drug-resistant Candida albicans in mice. This immunoprophylactic strategy shows promise for immunocompromised individuals facing invasive candidiasis.

Area of Science:

  • Mycology
  • Immunology
  • Vaccinology

Background:

  • Candida albicans is a significant fungal pathogen, especially in immunocompromised individuals.
  • Rising fluconazole resistance in C. albicans necessitates new therapeutic approaches.
  • Systemic candidiasis poses a severe health risk, requiring effective preventative measures.

Purpose of the Study:

  • To assess the prophylactic efficacy of a novel liposomal vaccine, Tuft-lip-WCAg, against systemic candidiasis.
  • To evaluate the immune response generated by the Tuft-lip-WCAg vaccine in a murine model.
  • To determine the protective potential of Tuft-lip-WCAg against fluconazole-resistant C. albicans.

Main Methods:

  • A murine model of systemic Candida albicans infection was utilized.
  • Vaccine efficacy was determined by survival rates and fungal burden.
  • Immunological assessments included antibody titers, T cell proliferation, and cytokine analysis (IFN-γ, IL-4).

Main Results:

  • Tuft-lip-WCAg vaccination resulted in 100% survival and no detectable fungal burden by day 40.
  • Vaccinated mice showed significantly increased antibody titers, IgG2a levels, and T cell proliferation.
  • Splenocytes from immunized mice produced elevated levels of IFN-γ and IL-4, indicating a balanced Th1/Th2 response.

Conclusions:

  • The Tuft-lip-WCAg formulation is a safe and immunogenic vaccine candidate.
  • It offers complete protection against drug-resistant Candida albicans in a preclinical murine model.
  • Tuft-lip-WCAg represents a promising immunoprophylactic strategy for high-risk populations.
Keywords:
C. albicansantibodiescytokineimmunitytoxicityvaccination

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