Related Experiment Video
Updated: Aug 6, 2026

Live Imaging of Antifungal Activity by Human Primary Neutrophils and Monocytes in Response to A. fumigatus
Published on: April 19, 2017
Membrane and cell wall targets in Aspergillus fumigatus
1Institut Pasteur, Paris, France.
Abstract:
Antifungal drugs directed against the human opportunistic fungal pathogen Aspergillus fumigatus are limited in number and ergosterol-targeted: the polyenes bind to the membrane ergosterol and the azoles block the ergosterol biosynthesis pathway. The efficacy of the drugs currently available for clinical use (amphotericin B and itraconazole) is limited and the frequent occurrence of therapeutic failures in the treatment of invasive aspergillosis emphasizes the need for the development of new agents. Cell wall biosynthetic pathways have been recognized for a long time as essential and unique specific drug targets. Recent studies of the chemical organization of the cell wall of A. fumigatus together with comparative analysis of yeast cell wall data have shown that beta 1-3 glucan branching and chitin-beta 1-3 glucan binding are essential exocellular enzymatic steps in cell wall biosynthesis. The enzymes involved in the biosynthesis and remodeling of cell wall polysaccharides especially in A. fumigatus are reviewed.
Insights
New antifungal drug targets are needed for Aspergillus fumigatus infections. Research highlights fungal cell wall biosynthesis, specifically beta-1,3-glucan branching and chitin-beta-1,3-glucan binding, as promising targets for novel antifungal agents.
Area of Science:
- Mycology
- Medicinal Chemistry
- Biochemistry
Background:
- Current antifungal drugs for Aspergillus fumigatus target ergosterol, with limited efficacy and frequent treatment failures in invasive aspergillosis.
- The need for novel antifungal agents is critical due to the limitations of existing therapies.
Purpose of the Study:
- To review enzymes involved in the biosynthesis and remodeling of fungal cell wall polysaccharides in Aspergillus fumigatus.
- To identify essential exocellular enzymatic steps in cell wall biosynthesis as potential drug targets.
Main Methods:
- Review of recent studies on the chemical organization of the Aspergillus fumigatus cell wall.
- Comparative analysis of cell wall data from yeast.
Main Results:
- Beta-1,3-glucan branching and chitin-beta-1,3-glucan binding are identified as essential enzymatic steps in fungal cell wall biosynthesis.
- These pathways represent unique and specific targets for antifungal drug development.
Conclusions:
- Fungal cell wall biosynthetic pathways are essential and unique drug targets.
- Enzymes involved in beta-1,3-glucan and chitin synthesis and remodeling in Aspergillus fumigatus are key targets for new antifungal drug discovery.
Related Concept Videos
Bacterial Cell Wall
Overview of Fungi
Fungal Phylum Ascomycota
Archaeal Cell Wall
Inhibitors of Gram-positive Cell Wall Synthesis
Antifungal Agents

