Insights into the Association of FcγRII and TCR with Detergent-Resistant Membrane Domains:  Isolation of the Domains in Detergent-Free Density Gradients Facilitates Membrane Fragment Reconstitution†

Biochemistry ◽  
2003 ◽  
Vol 42 (18) ◽  
pp. 5358-5367 ◽  
Author(s):  
Marek Korzeniowski ◽  
Katarzyna Kwiatkowska ◽  
Andrzej Sobota
Keyword(s):  
Density Gradients ◽  
Membrane Domains ◽  
Membrane Fragment ◽  
Detergent Resistant Membrane

scholarly journals Proteomic Analysis of Detergent Resistant Membrane Domains during Early Interaction of Macrophages with Rough and Smooth Brucella melitensis

PLoS ONE ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. e91706 ◽  
Author(s):  
Sabine A. Lauer ◽  
Srinivas Iyer ◽  
Timothy Sanchez ◽  
Christian V. Forst ◽  
Brent Bowden ◽  
...  
Keyword(s):  
Proteomic Analysis ◽  
Brucella Melitensis ◽  
Membrane Domains ◽  
Early Interaction ◽  
Detergent Resistant Membrane

scholarly journals Cdc42 regulates neutrophil migration via crosstalk between WASp, CD11b, and microtubules

Blood ◽  
2012 ◽  
Vol 120 (17) ◽  
pp. 3563-3574 ◽  
Author(s):  
Sachin Kumar ◽  
Juying Xu ◽  
Charles Perkins ◽  
Fukun Guo ◽  
Scott Snapper ◽  
...  
Keyword(s):  
Rho Gtpase ◽  
Neutrophil Migration ◽  
Cell Polarization ◽  
Membrane Domains ◽  
Long Distance ◽  
Cellular Defense ◽  
Persistent Cell ◽  
Proper Balance ◽  
Detergent Resistant Membrane ◽  
Standing Question

Abstract Chemotaxis promotes neutrophil participation in cellular defense by enabling neutrophil migration to infected tissue and is controlled by persistent cell polarization. One long-standing question of neutrophil polarity has been how the pseudopod and the uropod are coordinated. In our previous report, we suggested that Rho GTPase Cdc42 controls neutrophil polarity through CD11b signaling at the uropod, albeit through an unknown mechanism. Here, we show that Cdc42 controls polarity, unexpectedly, via its effector WASp. Cdc42 controls WASp activation and its distant localization to the uropod. At the uropod, WASp regulates the reorganization of CD11b integrin into detergent resistant membrane domains; in turn, CD11b recruits the microtubule end binding protein EB1 to capture and stabilize microtubules at the uropod. This organization is necessary to maintain neutrophil polarity during migration and is critical for neutrophil emigration into inflamed lungs. These results suggest unrecognized mechanism of neutrophil polarity in which WASp mediates long-distance control of the uropod by Cdc42 to maintain a proper balance between the pseudopod and the uropod. Our study reveals a new function for WASp in the control of neutrophil polarity via crosstalk between CD11b and microtubules.

Mass spectrometric characterization of proteins extracted from Jurkat T cell detergent-resistant membrane domains

PROTEOMICS ◽  
2001 ◽  
Vol 1 (8) ◽  
pp. 1010-1021 ◽  
Author(s):  
Priska D. von Haller ◽  
Sam Donohoe ◽  
David R. Goodlett ◽  
Ruedi Aebersold ◽  
Julian D. Watts
Keyword(s):  
T Cell ◽  
Mass Spectrometric ◽  
Membrane Domains ◽  
Jurkat T Cell ◽  
Detergent Resistant Membrane

scholarly journals Cytoskeleton-dependent Membrane Domain Segregation during Neutrophil Polarization

2001 ◽  
Vol 12 (11) ◽  
pp. 3550-3562 ◽  
Author(s):  
Stéphanie Seveau ◽  
Robert J. Eddy ◽  
Frederick R. Maxfield ◽  
Lynda M. Pierini
Keyword(s):  
Plasma Membrane ◽  
Myosin Light Chain ◽  
Transmembrane Proteins ◽  
Cell Polarization ◽  
Membrane Domains ◽  
Membrane Domain ◽  
Actin Remodeling ◽  
Cytoskeletal Rearrangements ◽  
Triton X ◽  
Detergent Resistant Membrane

On treatment with chemoattractant, the neutrophil plasma membrane becomes organized into detergent-resistant membrane domains (DRMs), the distribution of which is intimately correlated with cell polarization. Plasma membrane at the front of polarized cells is susceptible to extraction by cold Triton X-100, whereas membrane at the rear is resistant to extraction. After cold Triton X-100 extraction, DRM components, including the transmembrane proteins CD44 and CD43, the GPI-linked CD16, and the lipid analog, DiIC16, are retained within uropods and cell bodies. Furthermore, CD44 and CD43 interact concomitantly with DRMs and with the F-actin cytoskeleton, suggesting a mechanism for the formation and stabilization of DRMs. By tracking the distribution of DRMs during polarization, we demonstrate that DRMs progress from a uniform distribution in unstimulated cells to small, discrete patches immediately after activation. Within 1 min, DRMs form a large cap comprising the cell body and uropod. This process is dependent on myosin in that an inhibitor of myosin light chain kinase can arrest DRM reorganization and cell polarization. Colabeling DRMs and F-actin revealed a correlation between DRM distribution and F-actin remodeling, suggesting that plasma membrane organization may orient signaling events that control cytoskeletal rearrangements and, consequently, cell polarity.

The effect of simvastatin on the proteome of detergent-resistant membrane domains: Decreases of specific proteins previously related to cytoskeleton regulation, calcium homeostasis and cell fate

PROTEOMICS ◽  
2010 ◽  
Vol 10 (10) ◽  
pp. 1954-1965 ◽  
Author(s):  
Jovita Ponce ◽  
David Brea ◽  
Montserrat Carrascal ◽  
Verónica Guirao ◽  
Nuria DeGregorio-Rocasolano ◽  
...  
Keyword(s):  
Cell Fate ◽  
Calcium Homeostasis ◽  
Membrane Domains ◽  
Specific Proteins ◽  
Detergent Resistant Membrane

scholarly journals Detergent Resistant Membrane Domains in Broccoli Plasma Membrane Associated to the Response to Salinity Stress

2020 ◽  
Vol 21 (20) ◽  
pp. 7694
Author(s):  
Lucía Yepes-Molina ◽  
Micaela Carvajal ◽  
Maria Carmen Martínez-Ballesta
Keyword(s):  
Plasma Membrane ◽  
Membrane Trafficking ◽  
Lower Amount ◽  
Membrane Domains ◽  
Cellular Functions ◽  
Osmotic Water ◽  
Fatty Acid Saturation ◽  
Protein Partitioning ◽  
Detergent Resistant Membranes ◽  
Detergent Resistant Membrane

Detergent-resistant membranes (DRMs) microdomains, or “raft lipids”, are key components of the plasma membrane (PM), being involved in membrane trafficking, signal transduction, cell wall metabolism or endocytosis. Proteins imbibed in these domains play important roles in these cellular functions, but there are few studies concerning DRMs under abiotic stress. In this work, we determine DRMs from the PM of broccoli roots, the lipid and protein content, the vesicles structure, their water osmotic permeability and a proteomic characterization focused mainly in aquaporin isoforms under salinity (80 mM NaCl). Based on biochemical lipid composition, higher fatty acid saturation and enriched sterol content under stress resulted in membranes, which decreased osmotic water permeability with regard to other PM vesicles, but this permeability was maintained under control and saline conditions; this maintenance may be related to a lower amount of total PIP1 and PIP2. Selective aquaporin isoforms related to the stress response such as PIP1;2 and PIP2;7 were found in DRMs and this protein partitioning may act as a mechanism to regulate aquaporins involved in the response to salt stress. Other proteins related to protein synthesis, metabolism and energy were identified in DRMs independently of the treatment, indicating their preference to organize in DMRs.

Sign in / Sign up

Export Citation Format

Share Document