Anticandidal activity of pyrimidine-peptide conjugates

|August 1, 1980

Summary

Peptide conjugates carrying pyrimidines like 5-fluorocytosine can enter Candida albicans. This study shows peptides can deliver these compounds into eukaryotic cells intact, offering new therapeutic strategies.

Area of Science:

* Mycology and Pharmaceutical Chemistry
* Antimicrobial Drug Delivery

Background:

* Candida albicans is a significant fungal pathogen.
* Developing effective delivery systems for antifungal agents is crucial.

Purpose of the Study:

* To investigate the uptake of peptide conjugates of pyrimidines into Candida albicans.
* To determine if these conjugates enter the fungal cells intact.

Main Methods:

* Synthesis of peptide conjugates using 1-(ethoxy-carbonyl)-2-ethoxy-1,2-dihydroquinoline.
* Assay of trimethionine uptake inhibition in C. albicans.
* Determination of minimum inhibitory concentrations (MICs).

Main Results:

* Synthesized conjugates of 5-fluoroorotic acid and peptides.
* Several conjugates inhibited trimethionine uptake in C. albicans.
* Competitive inhibition observed with 5-fluoroorotyl-L-leucyl-L-leucine.

Conclusions:

* Peptide conjugates can be effectively delivered into Candida albicans.
* These conjugates appear to enter the fungal cells in their intact form.
* Provides evidence for peptides as carriers for pyrimidines into eukaryotes.

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Anticandidal activity of pyrimidine-peptide conjugates

Area of Science:

Background:

Purpose of the Study:

Main Methods:

Main Results:

Conclusions:

Related Concept Videos

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