High-throughput fluorescence microscopic analysis of protein abundance and localization in budding yeast

2016 ◽  
Vol 51 (2) ◽  
pp. 110-119 ◽  
Author(s):  
Nikko P. Torres ◽  
Brandon Ho ◽  
Grant W. Brown
PLoS ONE ◽  
2018 ◽  
Vol 13 (12) ◽  
pp. e0208520 ◽  
Author(s):  
Wanderson Marques Da Silva ◽  
Jinlong Bei ◽  
Natalia Amigo ◽  
María Pía Valacco ◽  
Ariel Amadio ◽  
...  

Author(s):  
Yash S. Raval ◽  
Abdelrhman Mohamed ◽  
Jayawant N. Mandrekar ◽  
Cody Fisher ◽  
Kerryl E. Greenwood-Quaintance ◽  
...  

Wound infections are caused by bacteria and/or fungi. The presence of fungal biofilms in wound beds presents a unique challenge, as fungal biofilms may be difficult to eradicate. The goal of this work was to assess the in vitro anti-biofilm activity of a H 2 O 2 -producing electrochemical bandage (e-bandage) against 15 yeast isolates representing commonly-encountered species. Time-dependent decreases in viable biofilm CFU counts of all isolates tested were observed, resulting in no visible colonies with 48 hours of exposure by plate culture. Fluorescence microscopic analysis showed extensive cell membrane damage of biofilm cells after e-bandage treatment. Reductions in intracellular ATP levels of yeast biofilm cells were recorded post e-bandage treatment. Our results suggest that exposure to H 2 O 2 -producing e-bandages reduce in vitro viable cell counts of yeast biofilms, making this a potential new topical treatment approach for fungal wound infections.


2012 ◽  
Vol 287 (27) ◽  
pp. 22759-22770 ◽  
Author(s):  
Paula V. Cabrera ◽  
Mabel Pang ◽  
Jamie L. Marshall ◽  
Raymond Kung ◽  
Stanley F. Nelson ◽  
...  

2016 ◽  
Vol 17 (3) ◽  
pp. 129-131 ◽  
Author(s):  
Kathryn Spiers ◽  
Tina Cardamone ◽  
John B. Furness ◽  
Jonathan C. M. Clark ◽  
James F. Patrick ◽  
...  

2016 ◽  
Vol 6 (4) ◽  
pp. 993-1012 ◽  
Author(s):  
Timothy Hoggard ◽  
Ivan Liachko ◽  
Cassaundra Burt ◽  
Troy Meikle ◽  
Katherine Jiang ◽  
...  

2006 ◽  
Vol 291 (1) ◽  
pp. H274-H282 ◽  
Author(s):  
Fan Zhang ◽  
Guo Zhang ◽  
Andrew Y. Zhang ◽  
Matthew J. Koeberl ◽  
Eryn Wallander ◽  
...  

The present study was designed to determine the production of nicotinic acid adenine dinucleotide phosphate (NAADP) and its role associated with lysosomes in mediating endothelin-1 (ET-1)-induced vasoconstriction in coronary arteries. HPLC assay showed that NAADP was produced in coronary arterial smooth muscle cells (CASMCs) via endogenous ADP-ribosyl cyclase. Fluorescence microscopic analysis of intracellular Ca2+ concentration ([Ca2+]i) in CASMCs revealed that exogenous 100 nM NAADP increased [Ca2+]i by 711 ± 47 nM. Lipid bilayer experiments, however, demonstrated that NAADP did not directly activate ryanodine (Rya) receptor Ca2+ release channels on the sarcoplasmic reticulum. In CASMCs pretreated with 100 nM bafilomycin A1 (Baf), an inhibitor of lysosomal Ca2+ release and vacuolar proton pump function, NAADP-induced [Ca2+]i increase was significantly abolished. Moreover, ET-1 significantly increased NAADP formation in CASMCs and resulted in the rise of [Ca2+]i in these cells with a large increase in global Ca2+ level of 1,815 ± 84 nM. Interestingly, before this large Ca2+ increase, a small Ca2+ spike with an increase in [Ca2+]i of 529 ± 32 nM was observed. In the presence of Baf (100 nM), this ET-1-induced two-phase [Ca2+]i response was completely abolished, whereas Rya (50 μM) only markedly blocked the ET-1-induced large global Ca2+ increase. Functional studies showed that 100 nM Baf significantly attenuated ET-1-induced maximal constriction from 82.26 ± 4.42% to 51.80 ± 4.36%. Our results suggest that a lysosome-mediated Ca2+ regulatory mechanism via NAADP contributes to ET-1-induced Ca2+ mobilization in CASMCs and consequent vasoconstriction of coronary arteries.


2007 ◽  
Vol 6 (6) ◽  
pp. 971-983 ◽  
Author(s):  
Ayami Ohtaka ◽  
Daisuke Okuzaki ◽  
Takamune T. Saito ◽  
Hiroshi Nojima

ABSTRACT Some meiosis-specific proteins of Schizosaccharomyces pombe harbor coiled-coil motifs and play essential roles in meiotic progression. Here we describe Mcp4, a novel meiosis-specific protein whose expression is abruptly induced at the horsetail phase and which remains expressed until sporulation is finished. Fluorescence microscopic analysis revealed that Mcp4 alters its subcellular localization during meiosis in a manner that partially resembles the movement of F-actin during meiosis. Mcp4 and F-actin never colocalize; rather, they are located in a side-by-side manner. When forespore membrane formation begins at metaphase II, the Mcp4 signals assemble at the lagging face of the dividing nuclei. At this stage, they are sandwiched between F-actin and the nucleus. Mcp4, in turn, appears to sandwich F-actin with Meu14. In mcp4Δ cells at anaphase II, the F-actin, which is normally dumbbell-shaped, adopts an abnormal balloon shape. Spores of mcp4Δ cells were sensitive to NaCl, although their shape and viability were normal. Taken together, we conclude that Mcp4 plays a role in the accurate positioning of F-actin during S. pombe meiosis.


2013 ◽  
Vol 706-708 ◽  
pp. 575-578
Author(s):  
Jia Le Song ◽  
Chang Yong Ye ◽  
Bai Lin Wang ◽  
Zhi Mi Zhou ◽  
Yan Xiao ◽  
...  

The relationship between the SBS modifier types and asphalt components on the effect of modified asphalt properties was discussed in this paper. Higher block ratio, higher molecular weight and star-like structure of SBS can improve modified asphalt high temperature properties. Colloid content decrease leading the processing easier, result stability decline. Our research group invented a chemical titration combined with fluorescence microscopic analysis detection method monitoring SBS modifier dosage. This method applied in highway construction site, the effect is significant.


Sign in / Sign up

Export Citation Format

Share Document