Related Experiment Video
Updated: Jun 17, 2026

Passive Administration of Monoclonal Antibodies Against H. capsulatum and Others Fungal Pathogens
Published on: February 14, 2011
Anti-inflammatory drugs selectively target sporangium development in Mucor
Ntsoaki J Leeuw1, Chantel W Swart, Desmond M Ncango
1Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, P.O. Box 339, Bloemfontein 9301, South Africa.
Abstract:
It is known that acetylsalicylic acid, an anti-inflammatory and anti-mitochondrial drug, targets structure development and functions of yeasts depending on elevated levels of mitochondrial activity. Using antibody probes, we previously reported that sporangia of Mucor circinelloides also contain increased mitochondrial activity, yielding high levels of 3-hydroxyoxylipins. This was, however, not found in Mortierella alpina (subgenus Mortierella). In this study we report that acetylsalicylic acid (aspirin) also targets sporangium development of Mucor circinelloides selectively, while hyphae with lower levels of mitochondrial activity are more resistant. Similar results were obtained when the anti-inflammatory compounds benzoic acid, ibuprofen, indomethacin, and salicylic acid were tested. The anti-inflammatory drugs exerted similar effects on this dimorphic fungus as found under oxygen-limited conditions. Interestingly, sporangium development of Mortierella alpina was found not to be selectively targeted by these drugs. Mortierella alpina, which could not exhibit dimorphic growth under oxygen-limited conditions, was also more sensitive to the anti-inflammatory drugs when compared with Mucor circinelloides. These results prompt further research to assess the applicability of these antimitochondrial antifungals to protect plants and animals against Mucor infections.
Insights
Anti-inflammatory drugs like aspirin selectively target sporangium development in Mucor circinelloides by inhibiting mitochondrial activity. This finding suggests potential applications for these antimitochondrial antifungals against Mucor infections.
Area of Science:
- Mycology
- Biochemistry
- Pharmacology
Background:
- Acetylsalicylic acid (aspirin) is an anti-inflammatory and antimitochondrial drug.
- Yeasts with high mitochondrial activity are sensitive to aspirin.
- Mucor circinelloides sporangia exhibit increased mitochondrial activity and produce 3-hydroxyoxylipins, unlike Mortierella alpina.
Purpose of the Study:
- To investigate the selective targeting of sporangium development in Mucor circinelloides by anti-inflammatory drugs.
- To compare the effects of these drugs on Mucor circinelloides and Mortierella alpina.
- To explore the potential of antimitochondrial antifungals against Mucor infections.
Main Methods:
- Treatment of Mucor circinelloides and Mortierella alpina with acetylsalicylic acid (aspirin) and other anti-inflammatory compounds (benzoic acid, ibuprofen, indomethacin, salicylic acid).
- Observation of sporangium development and hyphal resistance.
- Comparison of drug effects under normal and oxygen-limited conditions.
Main Results:
- Acetylsalicylic acid and other tested anti-inflammatory drugs selectively targeted sporangium development in Mucor circinelloides.
- Hyphae of Mucor circinelloides, with lower mitochondrial activity, showed greater resistance.
- Mortierella alpina's sporangium development was not selectively targeted, and it was more sensitive to the drugs than Mucor circinelloides.
- The observed effects mimicked those seen under oxygen-limited conditions.
Conclusions:
- Anti-inflammatory drugs, acting as antimitochondrial agents, selectively inhibit Mucor circinelloides sporangium development.
- Mortierella alpina exhibits differential sensitivity to these drugs.
- Further research is warranted to evaluate the use of these antifungals for protecting plants and animals from Mucor infections.
Related Concept Videos
Antifungal Agents
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Fungal Phylum Microsporidia
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...

