The influence of newly synthesised fenporpimorph derivatives on some pathogen yeasts

E Breierová1, J Sajbidor, M Lamacka

  • 1Culture Collection of Yeasts, Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia. chememi@savba.sk

Insights

Novel fenpropimorph derivatives show potent antifungal activity against Candida albicans and Malassezia species. These compounds exhibit lower minimum inhibitory concentrations (MICs) than bifonazol, impacting fungal lipid composition.

Area of Science:

  • Mycology
  • Medicinal Chemistry
  • Biochemistry

Background:

  • Fungal infections caused by Candida albicans and Malassezia species pose significant health challenges.
  • Development of novel antifungal agents with improved efficacy is crucial.
  • Fenpropimorph derivatives are being explored for their potential antifungal properties.

Purpose of the Study:

  • To investigate the antifungal activity of novel fenpropimorph derivatives against pathogenic fungi.
  • To determine the effect of these derivatives on the lipid and sterol composition of fungi.
  • To compare the efficacy of these derivatives with a commercial antifungal agent, bifonazol.

Main Methods:

  • Determination of minimum inhibitory concentrations (MICs) for six fenpropimorph derivatives against Candida albicans, Cryptococcus neoformans, Malassezia pachydermatis, and Malassezia furfur.
  • Analysis of lipid and sterol composition in fungi exposed to effective fenpropimorph derivatives.
  • Comparative analysis of MICs against the commercial fungicide bifonazol.

Main Results:

  • Novel fenpropimorph derivatives demonstrated potent antifungal activity with MICs ranging from 3.7 to 56.7 microM.
  • The most effective derivatives showed 2-3 times lower MICs compared to bifonazol.
  • Specific derivatives, piperidine and allylamine, were more efficient against particular fungal species.
  • Inhibitors reduced the unsaturation index of total lipids in Malassezia furfur and Candida albicans.

Conclusions:

  • Novel fenpropimorph derivatives represent promising candidates for antifungal drug development.
  • These compounds effectively inhibit fungal growth and alter lipid metabolism.
  • Further research into their mechanism of action and therapeutic potential is warranted.

Related Concept Videos

Bioreactor Controls-III01:22

Bioreactor Controls-III

Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions01:15

Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions

PK–PD modeling has significantly influenced FDA regulatory decisions, particularly drug approval, dosage optimization, and labeling. These models integrate pharmacokinetics (PK) and pharmacodynamics (PD) to predict drug behavior and effects, aiding in optimizing dosing regimens and enhancing the probability of clinical trial success.One notable example is Nesiritide (Natrecor®), a recombinant human brain natriuretic peptide for treating acute decompensated congestive heart failure (CHF).
Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
Combined Effects of Drugs: Synergism01:27

Combined Effects of Drugs: Synergism

Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...