Chemoattractant receptors and leukocyte recruitment: more than cell migration.

abstract：:The proteasome plays a pivotal role in the cellular response to oxidative stress. Here, we used biochemical and mass spectrometric methods to investigate structural changes in the 26S proteasomes from yeast and mammalian cells exposed to hydrogen peroxide (H₂O₂). Oxidative stress induced the dissociation of the 20S co...

journal_title：Science signaling

authors： Wang X,Yen J,Kaiser P,Huang L

更新日期：2010-12-07 00:00:00

abstract：:Obesity or a high-fat diet represses the endoribonuclease activity of inositol-requiring enzyme 1α (IRE1α), a transducer of the unfolded protein response (UPR) in cells under endoplasmic reticulum (ER) stress. An impaired UPR is associated with hepatic steatosis and nonalcoholic fatty liver disease (NAFLD), which is c...

journal_title：Science signaling

authors： Wang JM,Qiu Y,Yang Z,Kim H,Qian Q,Sun Q,Zhang C,Yin L,Fang D,Back SH,Kaufman RJ,Yang L,Zhang K

更新日期：2018-05-15 00:00:00

abstract：:The mTORC1 [mammalian (or mechanistic) target of rapamycin complex 1] inhibitor rapamycin is a potent inhibitor of T and B lymphocyte growth and proliferation. In this issue of Science Signaling, So et al found that the isoform of 4E-BP (4E-BP2) in lymphocytes that regulates messenger RNA translation is more sensitive...

journal_title：Science signaling

authors： Abraham RT

更新日期：2016-05-31 00:00:00

abstract：:Postsynaptic organizational protein complexes play central roles both in orchestrating synapse formation and in defining the functional properties of synaptic transmission that together shape the flow of information through neuronal networks. A key component of these organizational protein complexes is the family of s...

journal_title：Science signaling

authors： Ali H,Marth L,Krueger-Burg D

更新日期：2020-12-22 00:00:00

abstract：:Epithelial cell polarity is linked to the control of tissue growth and tumorigenesis. The tumor suppressor and cell polarity protein lethal-2-giant larvae (Lgl) promotes Hippo signaling and inhibits Notch signaling to restrict tissue growth in Drosophila melanogaster Notch signaling is greater in lgl mutant tissue tha...

journal_title：Science signaling

authors： Portela M,Yang L,Paul S,Li X,Veraksa A,Parsons LM,Richardson HE

更新日期：2018-06-05 00:00:00

abstract：:Notch signaling is used to choose cell fates in many developmental contexts. New evidence shows that circulating blood cells in Drosophila, in the absence of Notch ligand provided by neighboring cells, activate Notch signaling through stabilization with the hypoxia-inducible factor-α (HIF-α) transcription factor. Alth...

journal_title：Science signaling

authors： Johnson EA

更新日期：2011-07-12 00:00:00

abstract：:Mutations in ERBB2, the gene encoding epidermal growth factor receptor (EGFR) family member HER2, are common in and drive the growth of "HER2-negative" (not ERBB2 amplified) tumors but are rare in "HER2-positive" (ERBB2 amplified) breast cancer. We analyzed DNA-sequencing data from HER2-positive patients and used cell...

journal_title：Science signaling

authors： Cocco E,Javier Carmona F,Razavi P,Won HH,Cai Y,Rossi V,Chan C,Cownie J,Soong J,Toska E,Shifman SG,Sarotto I,Savas P,Wick MJ,Papadopoulos KP,Moriarty A,Cutler RE Jr,Avogadri-Connors F,Lalani AS,Bryce RP,Chandarlapa

更新日期：2018-10-09 00:00:00

abstract：:One reported function of the tumor suppressor p19(Arf) is to stabilize p53, providing a critical checkpoint in the response to oncogenic insults. Acute loss of Pten leads to an increase in the abundance of p19(Arf), p53, and p21 proteins as part of a fail-safe senescence response. Here, we report that loss of p19(Arf)...

journal_title：Science signaling

authors： Chen Z,Carracedo A,Lin HK,Koutcher JA,Behrendt N,Egia A,Alimonti A,Carver BS,Gerald W,Teruya-Feldstein J,Loda M,Pandolfi PP

更新日期：2009-08-18 00:00:00

abstract：:A central component of receptor-evoked Ca(2+) signaling is store-operated Ca(2+) entry (SOCE), which is activated by the assembly of STIM1-Orai1 channels in endoplasmic reticulum (ER) and plasma membrane (PM) (ER-PM) junctions in response to depletion of ER Ca(2+). We report that STIM2 enhances agonist-mediated activa...

journal_title：Science signaling

authors： Ong HL,de Souza LB,Zheng C,Cheng KT,Liu X,Goldsmith CM,Feske S,Ambudkar IS

更新日期：2015-01-13 00:00:00

abstract：:Type 1 diabetes mellitus (T1DM) is associated with chronic systemic inflammation and enhanced susceptibility to systemic bacterial infection (sepsis). We hypothesized that low insulin concentrations in T1DM trigger the enzyme 5-lipoxygenase (5-LO) to produce the lipid mediator leukotriene B4 (LTB4), which triggers sys...

journal_title：Science signaling

authors： Filgueiras LR,Brandt SL,Wang S,Wang Z,Morris DL,Evans-Molina C,Mirmira RG,Jancar S,Serezani CH

更新日期：2015-01-27 00:00:00

abstract：:Signaling proteins evolved diverse interactions to provide specificity for distinct stimuli. Signaling complexity in the G protein (heterotrimeric guanosine triphosphate-binding protein) network was achieved in animals through subunit duplication and incremental evolution. By combining comprehensive and quantitative p...

journal_title：Science signaling

authors： Urano D,Maruta N,Trusov Y,Stoian R,Wu Q,Liang Y,Jaiswal DK,Thung L,Jackson D,Botella JR,Jones AM

更新日期：2016-09-20 00:00:00

abstract：:We previously developed a web tool, Transcriptomine, to explore expression profiling data sets involving small-molecule or genetic manipulations of nuclear receptor signaling pathways. We describe advances in biocuration, query interface design, and data visualization that enhance the discovery of uncharacterized biol...

journal_title：Science signaling

authors： Becnel LB,Ochsner SA,Darlington YF,McOwiti A,Kankanamge WH,Dehart M,Naumov A,McKenna NJ

更新日期：2017-04-25 00:00:00

abstract：:Premature labor and consequent neonatal mortality may be prevented by stimulating the expression of PIBF1 in uterine B cells. ...

journal_title：Science signaling

authors： Ferrarelli LK

更新日期：2017-01-17 00:00:00

abstract：:The postsynaptic site of neurons is composed of more than 1500 proteins arranged in protein-protein interaction complexes, the composition of which is modulated by protein phosphorylation through the actions of complex signaling networks. Components of these networks function as key regulators of synaptic plasticity, ...

journal_title：Science signaling

authors： Li J,Wilkinson B,Clementel VA,Hou J,O'Dell TJ,Coba MP

更新日期：2016-08-09 00:00:00

abstract：:In a mouse model of Parkinson's disease, new evidence shows that l-DOPA, which is used to treat the symptoms of the disease but also causes dyskinesia, results in a persistent activation of the protein kinase mTOR (mammalian target of rapamycin) in a subset of striatal medium spiny neurons. Moreover, blockade of a spe...

journal_title：Science signaling

authors： Klann E

更新日期：2009-07-21 00:00:00

abstract：:Educated natural killer (NK) cells have inhibitory receptors specific for self major histocompatibility complex (MHC) class I molecules and kill cancer cells more efficiently than do NK cells that do not have such receptors (hyporesponsive NK cells). The mechanism behind this functional empowerment through education h...

journal_title：Science signaling

authors： Staaf E,Hedde PN,Bagawath Singh S,Piguet J,Gratton E,Johansson S

更新日期：2018-02-13 00:00:00

abstract：:Insulin receptor substrate 2 (IRS2) is an adaptor protein that becomes tyrosine-phosphorylated in response to the cytokines interleukin-4 (IL-4) and IL-13, which results in activation of the phosphoinositide 3-kinase (PI3K)-Akt pathway. IL-4 and IL-13 contribute to allergic lung inflammation. To examine the role of IR...

journal_title：Science signaling

authors： Dasgupta P,Dorsey NJ,Li J,Qi X,Smith EP,Yamaji-Kegan K,Keegan AD

更新日期：2016-06-21 00:00:00

abstract：:In lymphocytes, the kinase Mst1 is required for the proper organization of integrins in the plasma membrane at the leading edge of migrating cells, which is critical for lymphocyte trafficking. We found a functional link between the small G protein Rab13 and Mst1 in lymphocyte adhesion and migration. In response to st...

journal_title：Science signaling

authors： Nishikimi A,Ishihara S,Ozawa M,Etoh K,Fukuda M,Kinashi T,Katagiri K

更新日期：2014-07-29 00:00:00

abstract：:Mechanical loading of the skeleton is essential for the development, growth, and maintenance of strong, weight-bearing bones. Bone strength is plastic and can be modulated in adults, as illustrated by the increased bone mass in the playing arms of athletes as compared with their nonplaying arms. Our studies have shown...

journal_title：Science signaling

authors： Turner CH,Warden SJ,Bellido T,Plotkin LI,Kumar N,Jasiuk I,Danzig J,Robling AG

更新日期：2009-04-28 00:00:00

abstract：:Jasmonates control defense gene expression, growth, and fertility throughout the plant kingdom and have been studied extensively in Arabidopsis thaliana. The prohormone jasmonic acid (JA) is conjugated to amino acids such as isoleucine to form the active hormone jasmonoyl-isoleucine (JA-Ile). A series of breakthroughs...

journal_title：Science signaling

authors： Gfeller A,Liechti R,Farmer EE

更新日期：2010-02-16 00:00:00

abstract：:For decades, the fission yeast Schizosaccharomyces pombe has been used as an excellent model with which to explore how cellular growth is coordinated with the division cycle, a yet-unanswered question in biology. New studies in this organism show that TOR (target of rapamycin) kinase and stress-responsive MAPK (mitoge...

journal_title：Science signaling

authors： Shiozaki K

更新日期：2009-11-10 00:00:00

abstract：:Intracellular calcium (Ca2+) signals are of prime importance for cellular function and behavior and are underpinned by a plethora of Ca2+ channels, pumps, transporters, and binding proteins that are regulated in complex ways. A series of biennial meetings, the International Meetings of the European Calcium Society (EC...

journal_title：Science signaling

authors： Parys JB,Guse AH

更新日期：2019-09-17 00:00:00

abstract：:Prokaryotic cell wall biosynthesis is coordinated with cell growth and division, but the mechanisms regulating this dynamic process remain obscure. Here, we describe a phosphorylation-dependent regulatory complex that controls peptidoglycan (PG) biosynthesis in Mycobacterium tuberculosis. We found that PknB, a PG-resp...

journal_title：Science signaling

authors： Gee CL,Papavinasasundaram KG,Blair SR,Baer CE,Falick AM,King DS,Griffin JE,Venghatakrishnan H,Zukauskas A,Wei JR,Dhiman RK,Crick DC,Rubin EJ,Sassetti CM,Alber T

更新日期：2012-01-24 00:00:00

abstract：:TRPML1 (transient receptor potential mucolipin 1) is a Ca2+-permeable, nonselective cation channel localized to the membranes of endosomes and lysosomes and is not present or functional on the plasma membrane. Ca2+ released from endosomes and lysosomes into the cytosol through TRPML1 channels is vital for trafficking,...

journal_title：Science signaling

authors： Thakore P,Pritchard HAT,Griffin CS,Yamasaki E,Drumm BT,Lane C,Sanders KM,Feng Earley Y,Earley S

更新日期：2020-06-23 00:00:00

abstract：:The differentiation of fibroblasts into a transient population of highly activated, extracellular matrix (ECM)-producing myofibroblasts at sites of tissue injury is critical for normal tissue repair. Excessive myofibroblast accumulation and persistence, often as a result of a failure to undergo apoptosis when tissue r...

journal_title：Science signaling

authors： Selvarajah B,Azuelos I,Platé M,Guillotin D,Forty EJ,Contento G,Woodcock HV,Redding M,Taylor A,Brunori G,Durrenberger PF,Ronzoni R,Blanchard AD,Mercer PF,Anastasiou D,Chambers RC

更新日期：2019-05-21 00:00:00

abstract：:The chemokine CXCL12 released from early stage pancreatic cancer recruits Schwann cells and suppresses pain signaling. ...

journal_title：Science signaling

authors： Gough NR

更新日期：2017-01-10 00:00:00

abstract：:The interplay between calcium ion (Ca(2+)) and cyclic adenosine monophosphate (cAMP) signaling underlies crucial aspects of cell homeostasis. The membrane-bound Ca(2+)-regulated adenylyl cyclases (ACs) are pivotal points of this integration. These enzymes display high selectivity for Ca(2+) entry arising from the acti...

journal_title：Science signaling

authors： Willoughby D,Everett KL,Halls ML,Pacheco J,Skroblin P,Vaca L,Klussmann E,Cooper DM

更新日期：2012-04-10 00:00:00

abstract：:MKK4 (mitogen-activated protein kinase kinase 4) is a pivotal upstream activator of c-Jun N-terminal kinase and p38. Here, we report that the abundance of MKK4 increases in senescent human diploid fibroblasts through enhanced translation. We identified four microRNAs (miR-15b, miR-24, miR-25, and miR-141) that target ...

journal_title：Science signaling

authors： Marasa BS,Srikantan S,Masuda K,Abdelmohsen K,Kuwano Y,Yang X,Martindale JL,Rinker-Schaeffer CW,Gorospe M

更新日期：2009-10-27 00:00:00

abstract：:Store-operated Ca2+ entry (SOCE) is critical for salivary gland fluid secretion. We report that radiation treatment caused persistent salivary gland dysfunction by activating a TRPM2-dependent mitochondrial pathway, leading to caspase-3-mediated cleavage of stromal interaction molecule 1 (STIM1) and loss of SOCE. Afte...

journal_title：Science signaling

authors： Liu X,Gong B,de Souza LB,Ong HL,Subedi KP,Cheng KT,Swaim W,Zheng C,Mori Y,Ambudkar IS

更新日期：2017-06-06 00:00:00

abstract：:The hypoxia inducible factors (HIFs) and CCAAT/enhancer binding protein alpha (C/EBP alpha) are transcription factors that mediate adaptive responses to hypoxia and control aspects of energy metabolism, respectively. New evidence suggests that when HIF-1 alpha and C/EBP alpha interact, they bring about reciprocal func...

journal_title：Science signaling

authors： Janardhan HP

更新日期：2008-10-28 00:00:00