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The Cell Wall-Associated Proteins in the Dimorphic Pathogenic Species of Paracoccidioides

Rosana Puccia1, Milene C Vallejo2, Larissa V G Longo2

  • 1Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina- Universidade Federal de São Paulo (EPM-UNIFESP), Rua Botucatu, 862, oitavo andar, 04023-062, São Paulo, SP. Brazil.

Current Protein & Peptide Science
|August 17, 2016
PubMed

Insights

This study details cell wall-associated proteins in Paracoccidioides fungi, the cause of paracoccidioidomycosis (PCM). Understanding these proteins is crucial for host-pathogen interactions in PCM.

Area of Science:

  • Mycology
  • Immunology
  • Biochemistry

Background:

  • Paracoccidioides brasiliensis and P. lutzii cause paracoccidioidomycosis (PCM), a significant human fungal infection.
  • These dimorphic fungi possess a cell wall crucial for host interaction, primarily composed of polysaccharides but also containing proteins, lipids, and melanin.

Purpose of the Study:

  • To provide an updated, detailed overview of cell wall-associated proteins in Paracoccidioides species.
  • To consolidate current knowledge on Paracoccidioides cell wall structure, secretion mechanisms, and extracellular vesicles.

Main Methods:

  • Review and synthesis of existing literature on Paracoccidioides cell wall components.
  • Detailed discussion of proteins localized to the cell wall using antibody-based methods.

Main Results:

  • The Paracoccidioides cell wall composition varies across fungal developmental stages (yeast, filamentous, transition).
  • Specific cell wall-associated proteins have been identified and localized, playing roles in host-pathogen interactions.

Conclusions:

  • Cell wall-associated proteins are key players in the pathogenesis of paracoccidioidomycosis.
  • Further research into these proteins and fungal extracellular vesicles may reveal new therapeutic targets for PCM.
Keywords:
Paracoccidioidescell walldmorphielipidsmelanin.proteinssecretion

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