Rescue of cell growth by sphingosine with disruption of lipid microdomain formation in Saccharomyces cerevisiae deficient in sphingolipid biosynthesis.

Saccharomyces cerevisiae as a Platform for Assessing Sphingolipid Lipid Kinase Inhibitors

Successful medicinal chemistry campaigns to discover and optimize sphingosine kinase inhibitors require a robust assay for screening chemical libraries and for determining rank order potencies. Existing assays for these enzymes are laborious, expensive and/or low throughput. The toxicity of excessive levels of phosphorylated sphingoid bases for the budding yeast, Saccharomyces cerevisiae, affor...

مهار رشد رده سرطانی K562 با استفاده از دیواره سلولی استخراج شده از پروبیوتیک‌های Saccharomyces cerevisiae و Saccharomyces boulardi به همراه نانو ذرات روی

Background: Chronic myeloid leukemia is a common cancer in human, so the goal of this study was the use of natural compound such as cell wall obtained from Saccharomyces cerevisiae (S. cerevisiae) and Saccharomyces boulardi (S. boulardi) and zinc nanoparticles on the growth inhibition of K562 cell line. Methods: For cell wall preparation, both yeasts were cultured in a basic medium at a...

Cell surface polarization during yeast mating.

Exposure to mating pheromone in haploid Saccharomyces cerevisiae cells results in the arrest of the cell cycle, expression of mating-specific genes, and polarized growth toward the mating partner. Proteins involved in signaling, polarization, cell adhesion, and fusion are localized to the tip of the mating cell (shmoo) where fusion will eventually occur. The mechanisms ensuring the correct targ...

SPHINGOMYELIN METABOLITES A S SECOND MESSENGERS IN AIRWAY SMOOTH MUSCL E CELL P ROLIFERATION

Sphingolipid metabolism was examined in guinea-pig airway smooth muscle cells stimulated by platelet-derived growth factor (PDGF) and 4β-phorbol 12- myristate 13-acetate (PMA), as mitogens and bradykinin (BK) as non-mitogen. Stimulation of the cells by PMA and PDGF for 60 min. at 37°C induced the following changes in sphingolipid metabolites: in cells prelabeled with PH] palmitate, a 1.2 f...

Disruption of GAL1 Gene in Saccharomyces cerevisiae Leads to Higher Ethanol Production