Biomaterial Database

The mode of antifungal action of tolnaftate. 1986

K J Barrett-Bee, and A C Lane, and R W Turner

The anti-dermatophyte agent tolnaftate was compared with the allylamine antifungal compounds naftifine and terbinafine. Tolnaftate was shown to inhibit sterol biosynthesis at the level of squalene epoxidation and squalene was shown to accumulate in dermatophytes grown in its presence. Biochemical studies in whole and broken cells supported this conclusion and showed that the compound was active against squalene epoxidation in broken C. albicans cells, but was much less potent against whole cells. These results suggested there was a barrier to penetration in these yeasts.

UI	MeSH Term	Description	Entries
D009281	Naphthalenes	Two-ring crystalline hydrocarbons isolated from coal tar. They are used as intermediates in chemical synthesis, as insect repellents, fungicides, lubricants, preservatives, and, formerly, as topical antiseptics.
D002176	Candida albicans	A unicellular budding fungus which is the principal pathogenic species causing CANDIDIASIS (moniliasis).	Candida albicans var. stellatoidea,Candida stellatoidea,Dematium albicans,Monilia albicans,Myceloblastanon albicans,Mycotorula albicans,Parasaccharomyces albicans,Procandida albicans,Procandida stellatoidea,Saccharomyces albicans,Syringospora albicans
D000077291	Terbinafine	A naphthalene derivative that inhibits fungal SQUALENE EPOXIDASE and is used to treat DERMATOMYCOSES of the skin and nails.	(E)-N-(6,6-Dimethyl-2-heptenynyl)-N-methyl-1-naphthalenementhamin hydrochloride,DA 5505,Lamisil,SF 86-327,SF-86-327,TDT-067,Terbinafine Hydrochloride,Terbinafine, (Z)-,Terbinafine, (Z)-isomer,SF 86 327,SF 86327,SF86327,TDT 067,TDT067
D000499	Allylamine	Possesses an unusual and selective cytotoxicity for VASCULAR SMOOTH MUSCLE cells in dogs and rats. Useful for experiments dealing with arterial injury, myocardial fibrosis or cardiac decompensation.	3-Aminopropylene,3 Aminopropylene
D000935	Antifungal Agents	Substances that destroy fungi by suppressing their ability to grow or reproduce. They differ from FUNGICIDES, INDUSTRIAL because they defend against fungi present in human or animal tissues.	Anti-Fungal Agents,Antifungal Agent,Fungicides, Therapeutic,Antibiotics, Antifungal,Therapeutic Fungicides,Agent, Antifungal,Anti Fungal Agents,Antifungal Antibiotics
D013185	Squalene	A natural 30-carbon triterpene.
D013261	Sterols	Steroids with a hydroxyl group at C-3 and most of the skeleton of cholestane. Additional carbon atoms may be present in the side chain. (IUPAC Steroid Nomenclature, 1987)	Sterol
D014047	Tolnaftate	A synthetic antifungal agent.	Aftate,Breezee,Chinofungin,Chlorisept,Curatin,Genaspor,Micoisdin,NP-27,Ony-Clear,Sporiline,Tinactin,Tinaderm,Tinatox,Tineafax,Ting,Tolnaftat Purder N,Tonoftal,ZeaSorb,NP 27,NP27,Ony Clear,Purder N, Tolnaftat
D014249	Trichophyton	A mitosporic fungal genus and an anamorphic form of Arthroderma. Various species attack the skin, nails, and hair.	Endodermophyton,Trychophyton,Endodermophytons,Trichophytons,Trychophytons