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.

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.

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