Results 41 to 50 of about 311,782 (303)

Intracellular tension sensor reveals mechanical anisotropy of the actin cytoskeleton

Nature Communications, 2023
The filamentous actin (F-actin) cytoskeleton is a composite material consisting of cortical actin and bundled F-actin stress fibers, which together mediate the mechanical behaviors of the cell, from cell division to cell migration. However, as mechanical
Sorosh Amiri, Camelia Muresan, Xingbo Shang, Clotilde Huet-Calderwood, Martin A. Schwartz, David A. Calderwood, Michael Murrell   +6 more
doaj   +1 more source

PECAM-1 engagement counteracts ICAM-1-induced signaling in brain vascular endothelial cells [PDF]

, 2007
Interactions between leukocytes and vascular endothelial cells are mediated by a complex set of membrane adhesion molecules which transduce bi-directional signals in both cell types.
Adamson, Barreiro, Barreiro, Butcher, Carman, Carman, Carson, Celli, Christine Rampon, Cicmil, Doulet, Durieu-Trautmann, Engelhardt, Etienne, Etienne, Etienne-Manneville, Federici, Gopalakrishnan, Graesser, Gratzinger, Greenwood, Greenwood, Henshall, Hoffmann, Ilan, Jackson, Jean-Pierre Couty, John Greenwood, Kontaridis, Lacalle, Marie-Pierre Laran-Chich, Masuda, Mathilde Leveque, Millan, Muller, Newman, Newman, Patil, Pierre-Olivier Couraud, Pluskota, Reid, Rivard, Roux, Sander, Sandrine Bourdoulous, Schenkel, Schoenwaelder, Schweitzer, Shaw, Viegas, Walters, Wang, Yang, Yang   +53 more
core   +2 more sources

Coupling biochemistry and mechanics in cell adhesion: a model for inhomogeneous stress fiber contraction

, 2007
Biochemistry and mechanics are closely coupled in cell adhesion. At sites of cell-matrix adhesion, mechanical force triggers signaling through the Rho-pathway, which leads to structural reinforcement and increased contractility in the actin cytoskeleton.
Achim Besser, Bartelt D C, Butler T M, Fung Y C, Huxley A F, Klipp E, Lo C-M, Mijailovich S M, Murray J D, Nagamoto H, Nunnally M H, Pato M D, Pollard T D, Ulrich S Schwarz, Umemoto S   +14 more
core   +1 more source

Organization and Regulation of the Actin Cytoskeleton in the Pollen Tube

Frontiers in Plant Science, 2015
Proper organization of the actin cytoskeleton is crucial for pollen tube growth. However, the precise mechanisms by which the actin cytoskeleton regulates pollen tube growth remain to be further elucidated.
Xiaolu eQu, Yuxiang eJiang, Ming eChang, Xiaonan eLiu, Ruihui eZhang, Shanjin eHuang   +5 more
doaj   +1 more source

Vacuolar transport and function of Saccharomyces cerevisiae sterol ester hydrolase Tgl1

FEBS Letters, EarlyView.
Tgl1, one of yeast sterol ester hydrolases, had been found on the lipid droplets where sterol esters are mainly stored. This study revealed that Tgl1 is transported into the vacuole depending on the ESCRT‐I–III complex, and that it exhibits intra‐vacuolar sterol ester hydrolase activity.
Takumi Nakatsuji, Kosuke Shiraishi, Chuqian Wang, Hiroya Yurimoto, Yasuyoshi Sakai, Masahide Oku   +5 more
wiley   +1 more source

Molecular dissection of the mechanism by which EWS/FLI expression compromises actin cytoskeletal integrity and cell adhesion in Ewing sarcoma. [PDF]

, 2014
Ewing sarcoma is the second-most-common bone cancer in children. Driven by an oncogenic chromosomal translocation that results in the expression of an aberrant transcription factor, EWS/FLI, the disease is typically aggressive and micrometastatic upon ...
Beckerle, Mary C, Chaturvedi, Aashi, Grossmann, Allie H, Hoffman, Laura M, Jensen, Christopher C, Lessnick, Stephen L, Lin, Yi-Chun, Randall, R Lor, Welm, Alana L   +8 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Intermediate filament–membrane attachments function synergistically with actin-dependent contacts to regulate intercellular adhesive strength [PDF]

, 2002
By tethering intermediate filaments (IFs) to sites of intercellular adhesion, desmosomes facilitate formation of a supercellular scaffold that imparts mechanical strength to a tissue.
Amargo, Evangeline V., Bannon, Leslie J., Chen, Xuejun, Godsel, Lisa M., Green, Kathleen J., Gumbiner, Barry M., Hudson, Tracie Y., Huen, Arthur C., Kelsell, David P., Leigh, Irene M., Mongiu, Anne K., Park, Jung K.   +11 more
core   +5 more sources

Investigating the cell of origin and novel molecular targets in Merkel cell carcinoma: a historic misnomer

Molecular Oncology, EarlyView.
This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian, Sriraam Sivachandran, Melissa Galati, Brandon Ramchatesingh, Hibo Rijal, Johnny Hanna, Elena Netchiporouk, May Chergui, Margaret Redpath, Samy Abou Setah, Ivan V. Litvinov   +10 more
wiley   +1 more source

The COOH terminus of the c-Abl tyrosine kinase contains distinct F- and G-actin binding domains with bundling activity [PDF]

, 1994
The myristoylated form of c-Abl protein, as well as the P210bcr/abl protein, have been shown by indirect immunofluorescence to associate with F-actin stress fibers in fibroblasts. Analysis of deletion mutants of c-Abl stably expressed in fibroblasts maps
Baltimore, David, Jackson, Peter K., Janmey, Paul A., Matsudaira, Paul T., Sanders, Mitchell C., Van Etten, Richard A.   +5 more
core   +4 more sources