نتایج جستجو برای: filipin staining

تعداد نتایج: 76807  

2013
Suraj P. Parihar Reto Guler Dirk M. Lang Harukazu Suzuki A. David Marais Frank Brombacher

Statins are well-known cholesterol lowering drugs targeting HMG-CoA-reductase, reducing the risk of coronary disorders and hypercholesterolemia. Statins are also involved in immunomodulation, which might influence the outcome of bacterial infection. Hence, a possible effect of statin treatment on Listeriosis was explored in mice. Statin treatment prior to subsequent L. monocytogenes infection s...

2017
Hanne C. Gadeberg Cherrie H. T. Kong Simon M. Bryant Andrew F. James Clive H. Orchard

Cholesterol is a key component of the cell plasma membrane. It has been suggested that the t-tubule membrane of cardiac ventricular myocytes is enriched in cholesterol and that this plays a role in determining t-tubule structure and function. We have used methyl-β-cyclodextrin (MβCD) to deplete cholesterol in intact and detubulated mouse ventricular myocytes to investigate the contribution of c...

Journal: :Journal of lipid research 2007
Isabelle Delton-Vandenbroucke Jerome Bouvier Asami Makino Nelly Besson Jean-François Pageaux Michel Lagarde Toshihide Kobayashi

Bis(monoacylglycero)phosphate (BMP), also called lysobisphosphatidic acid, is a phospholipid highly enriched in the internal membranes of multivesicular late endosomes, in which it forms specialized lipid domains. It has been suggested that BMP-rich membranes regulate cholesterol transport. Here, we examine the effects of an anti-BMP antibody on cholesterol metabolism and transport in two macro...

2014
Annalisa Sechi Andrea Dardis Stefania Zampieri Claudio Rabacchi Paolo Zanoni Sebastiano Calandra Giovanna De Maglio Stefano Pizzolitto Valerio Maruotti Antonio Di Muzio Frances Platt Bruno Bembi

BACKGROUND Tangier disease (TD) is a rare autosomal recessive disorder, resulting from mutations in the ATP binding cassette transporter (ABCA1) gene. The deficiency of ABCA1 protein impairs high density lipoprotein (HDL) synthesis and cholesterol esters trafficking. CASE REPORT A 58 year-old female, presenting with complex clinical signs (splenomegaly, dysarthria, dysphagia, ataxia, tongue e...

Journal: :Molecular biology of the cell 2002
Maarit Hölttä-Vuori Kimmo Tanhuanpää Wiebke Möbius Pentti Somerharju Elina Ikonen

To analyze the contribution of vesicular trafficking pathways in cellular cholesterol transport we examined the effects of selected endosomal Rab proteins on cholesterol distribution by filipin staining. Transient overexpression of Rab11 resulted in prominent accumulation of free cholesterol in Rab11-positive organelles that sequestered transferrin receptors and internalized transferrin. Sphing...

Journal: :Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology 2009
Bettina Krueger Silke Haerteis Limin Yang Andrea Hartner Robert Rauh Christoph Korbmacher Alexei Diakov

The lipid environment of the epithelial sodium channel (ENaC) and its possible association with so-called lipid rafts may be relevant to its function. The aim of our study was to confirm the association of ENaC with lipid rafts and to analyze the effect of cholesterol depletion of the plasma membrane by methyl-beta-cyclodextrin (MbetaCD) on channel function and regulation. Using sucrose density...

Journal: :Journal of cell science 2013
António J M Santos Michael Meinecke Michael B Fessler David W Holden Emmanuel Boucrot

Cell surface-exposed cholesterol is crucial for cell attachment and invasion of many viruses and bacteria, including the bacterium Salmonella, which causes typhoid fever and gastroenteritis. Using flow cytometry and 3D confocal fluorescence microscopy, we found that mitotic cells, although representing only 1-4% of an exponentially growing population, were much more efficiently targeted for inv...

Journal: :PLoS Medicine 2008
Magdalena Winiarska Jacek Bil Ewa Wilczek Grzegorz M Wilczynski Malgorzata Lekka Patrick J Engelberts Wendy J. M Mackus Elzbieta Gorska Lukasz Bojarski Tomasz Stoklosa Dominika Nowis Zuzanna Kurzaj Marcin Makowski Eliza Glodkowska Tadeusz Issat Piotr Mrowka Witold Lasek Anna Dabrowska-Iwanicka Grzegorz W Basak Maria Wasik Krzysztof Warzocha Maciej Sinski Zbigniew Gaciong Marek Jakobisiak Paul W. H. I Parren Jakub Golab

BACKGROUND Rituximab is used in the treatment of CD20+ B cell lymphomas and other B cell lymphoproliferative disorders. Its clinical efficacy might be further improved by combinations with other drugs such as statins that inhibit cholesterol synthesis and show promising antilymphoma effects. The objective of this study was to evaluate the influence of statins on rituximab-induced killing of B c...

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