Results 81 to 90 of about 192,293 (285)

Rab27a controls HIV-1 assembly by regulating plasma membrane levels of phosphatidylinositol 4,5-bisphosphate [PDF]

, 2015
During the late stages of the HIV-1 replication cycle, the viral polyprotein Pr55(Gag) is recruited to the plasma membrane (PM), where it binds phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) and directs HIV-1 assembly. We show that Rab27a controls the
Amigorena, S., Banchio, C., Benaroch, P., Cabrini, M., de Saint Basile, G., Duette, G., Freed, E. O., Geffner, J., Gerber, P. P., Jancic, C., Moita, C. F., Moita, L. F., Ostrowski, M., Paoletti, L., Pietrasanta, L. I., Sigaut, L., von Bilderling, C.   +16 more
core   +1 more source

Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53

Advanced Science, EarlyView.
NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore, Andrea Basile, Stefano Freddi, Irene Schiano Lomoriello, Carlo Ribelle Zucca, Giuseppe Ciossani, Luigi Scietti, Alessandro Cuomo, Simona Ronzoni, Simone Pelicci, Mario Faretta, Elena Zaccheroni, Giuliana Pelicci, Vittoria Matafora, Angela Bachi, Rosalind Helen Gunby, Salvatore Pece, Sara Sigismund, Letizia Lanzetti, Ivan Nicola Colaluca, Pier Paolo Di Fiore   +20 more
wiley   +1 more source

Deciphering the roles of phosphoinositide lipids in phagolysosome biogenesis

Communicative & Integrative Biology, 2016
Professional phagocytes engulf microbial invaders into plasma membrane-derived phagosomes. These mature into microbicidal phagolysosomes, leading to killing of the ingested microbe.
Andreas Jeschke, Albert Haas
doaj   +1 more source

Structural analyses of the Slm1-PH domain demonstrate ligand binding in the non-canonical site. [PDF]

PLoS ONE, 2012
BACKGROUND: Pleckstrin homology (PH) domains are common membrane-targeting modules and their best characterized ligands are a set of important signaling lipids that include phosphatidylinositol phosphates (PtdInsPs). PH domains recognize PtdInsPs through
Kanchan Anand, Kenji Maeda, Anne-Claude Gavin   +2 more
doaj   +1 more source

Stimulation of glucose utilization in 3T3 adipocytes and rat diaphragm in vitro by the sulphonylureas, glimepiride and glibenclamide, is correlated with modulations of the cAMP regulatory cascade [PDF]

, 1994
The long-term hypoglycemic activity of sulphonylurea drugs has been attributed, in part at least, to the stimulation of glucose utilization in extra-pancreatic tissues. The novel sulphonylurea, glimepiride, gives rise to a longer lasting reduction in the
Altan, Aoki, Avruch, Bak, Begum, Brown, Caren, Clancy, Cooper, Cushman, Daniels, Davidson, Farese, Feldman, Feldman, Gavin, Geisen, Gould, Guinovart, Hirshman, Honnor, Jacobs, Jacobs, Jacobs, James, James, Karnieli, Kirsch, Klip, Kolterman, Kono, Lane, Larner, Lawrence, Lawson, Lebovitz, Leichter, Maloff, Mandarino, Misek, Moody, Müller, Müller, Müller, Müller, Müller, Okuno, Oron, Osegawa, Panten, Popov, Putnam, Reusch, Rogers, Roskoski, Saltiel, Saltiel, Saltiel, Simonson, Smith, Solomon, Standing, Suissa, Suzuki, Tordjman, Towbin, Van Putten, Vila, Villalba, Wang, Wang, Wieland, Wray, Yalow, Zinman, Zuber   +75 more
core   +1 more source

Delivery of Pleckstrin‐Homology Domains Suppresses PI3K/Akt Signaling and Breast Cancer Metastasis

Advanced Science, EarlyView.
Current therapies curb tumor growth but not metastasis. Obscurin, a giant metastasis suppressor lost in breast cancer, restrains PI3K/Akt signaling but is impractical to restore. We deploy a mini‐obscurin, comprising the obscurin‐PH‐domain, which sequesters PI3K‐p85, potently suppressing invasion and metastasis.
Matthew Eason, Anindya Sen, Suhan Cho, Se Jong Lee, Keyata Thompson, Md Musavvir Mahmud, Poornima Dubey, Talia Guardia, Anthony Kim, Stuart Martin, Nathan Wright, Konstantinos Konstantopoulos, Aikaterini Kontrogianni‐Konstantopoulos   +12 more
wiley   +1 more source

The role of phosphatidylinositol 4-kinases and phosphatidylinositol 4-phosphate during viral replication

Biochemical Pharmacology, 2012
Phosphoinositides (PI) are phospholipids that mediate signaling cascades in the cell by binding to effector proteins. Reversible phosphorylation of the inositol ring at positions 3, 4 and 5 results in the synthesis of seven different phosphoinositides.
Delang, Leen, Paeshuyse, Jan, Neyts, Johan   +2 more
openaire   +2 more sources

Type I Phosphatidylinositol-4-phosphate 5-Kinases Synthesize the Novel Lipids Phosphatidylinositol 3,5-Bisphosphate and Phosphatidylinositol 5-Phosphate [PDF]

Journal of Biological Chemistry, 1998
Inositol phospholipids regulate a variety of cellular processes including proliferation, survival, vesicular trafficking, and cytoskeletal organization. Recently, two novel phosphoinositides, phosphatidylinositol-3,5-bisphosphate (PtdIns-3,5-P2) and phosphatidylinositol- 5-phosphate (PtdIns-5-P), have been shown to exist in cells.
K F, Tolias, L E, Rameh, H, Ishihara, Y, Shibasaki, J, Chen, G D, Prestwich, L C, Cantley, C L, Carpenter   +7 more
openaire   +2 more sources

Integration of Spatiotemporal Multi‐Omics in Peach Fruit Unravels a Metabolic Niche and the Genetic Basis of Trichome‐Mediated Stress Adaptation

Advanced Science, EarlyView.
This study constructed the first spatiotemporal multi‐omics map of peach fruit and discovered a key candidate gene that synergistically regulates trichome development and drought tolerance through the jasmonic acid signaling pathway, providing insights into the coupling mechanism between development and stress resistance.
Zhixin Liu, Ke Cao, Liping Guan, Aizhi Qin, Yong Li, Zihao Zhao, Yinpeng Zhang, Yaping Zhou, Lirong Wang, Xuwu Sun   +9 more
wiley   +1 more source

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

Advanced Science, EarlyView.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti, Giovanna Coceano, Mariline Mendes Silva, Jonatan Alvelid, Chiara Sgattoni, Andrea Volpato, Lea Rems, Luciano A. Masullo, Eduard M. Unterauer, Rafal Kowalewski, Lucie Delemotte, Erdinc Sezgin, Ralf Jungmann, Ilaria Testa   +13 more
wiley   +1 more source