التفاصيل البيبلوغرافية
| العنوان: |
Deletion of the Golgi Ca2+-ATPase PMR1 gene potentiates antifungal effects of dodecanol that depend on intracellular Ca2+ accumulation in budding yeast. |
| المؤلفون: |
Oyama, Masahiro, Tamaki, Hiroyuki, Yamaguchi, Yoshihiro, Ogita, Akira, Tanaka, Toshio, Fujita, Ken-ichi |
| المصدر: |
FEMS Yeast Research; Feb2020, Vol. 20 Issue 1, pN.PAG-N.PAG, 1p, 2 Color Photographs, 3 Diagrams, 1 Chart, 2 Graphs |
| مصطلحات موضوعية: |
DODECANOL, FUNGAL gene expression, YEAST, SACCHAROMYCES cerevisiae, DRUG resistance, COMMUNICABLE diseases |
| مستخلص: |
One strategy for overcoming infectious diseases caused by drug-resistant fungi involves combining drugs rendered inactive by resistance with agents targeting the drug resistance mechanism. The antifungal activity of n -dodecanol disappears as incubation time passes. In Saccharomyces cerevisiae , anethole, a principal component of anise oil, prolongs the transient antifungal effect of dodecanol by downregulating genes of multidrug efflux pumps, mainly PDR5. However, the detailed mechanisms of dodecanol's antifungal action and the anethole-induced prolonged antifungal action of dodecanol are unknown. Screening of S. cerevisiae strains lacking genes related to Ca2+ homeostasis and signaling identified a pmr1Δ strain lacking Golgi Ca2+-ATPase as more sensitive to dodecanol than the parental strain. Dodecanol and the dodecanol + anethole combination significantly increased intracellular Ca2+ levels in both strains, but the mutant failed to clear intracellular Ca2+ accumulation. Further, dodecanol and the drug combination reduced PMR1 expression and did not lead to specific localization of Pmr1p in the parental strain after 4-h treatment. By contrast with the parental strain, dodecanol did not stimulate PDR5 expression in pmr1Δ. Based on these observations, we propose that the antifungal activity of dodecanol is related to intracellular Ca2+ accumulation, possibly dependent on PMR1 function, with anethole enabling Ca2+ accumulation by restricting dodecanol efflux. [ABSTRACT FROM AUTHOR] |
|
Copyright of FEMS Yeast Research is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder