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R Seger et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 9(9), 726-735 (1995-06-01)
The transmission of extracellular signals into their intracellular targets is mediated by a network of interacting proteins that regulate a large number of cellular processes. Cumulative efforts from many laboratories over the past decade have allowed the elucidation of one
Distinct biological events generated by ECM proteolysis by two homologous collagenases.
Solomonov, et al.
Proceedings of the National Academy of Sciences of the USA, 113, 10884-10889 (2018)
Hyeyoon Lee et al.
The Journal of biological chemistry, 298(2), 101586-101586 (2022-01-16)
Signaling by bone morphogenetic proteins (BMPs) plays pivotal roles in embryogenesis, adult tissue homeostasis, and disease. Recent studies revealed that the well-established WNT agonist R-spondin 2 (RSPO2) is also a BMP receptor (BMP receptor type 1A) antagonist, with roles in
J Han et al.
Science (New York, N.Y.), 265(5173), 808-811 (1994-08-05)
Mammalian cells respond to endotoxic lipopolysaccharide (LPS) by activation of protein kinase cascades that lead to new gene expression. A protein kinase, p38, that was tyrosine phosphorylated in response to LPS, was cloned. The p38 enzyme and the product of
Qiang Li et al.
Journal of virology, 85(16), 7976-7988 (2011-06-18)
Adenovirus E1B-55K represses p53-mediated transcription. However, the phenotypic consequence of p53 inhibition by E1B-55K for cell cycle regulation and drug sensitivity in tumor cells has not been examined. In HCT116 cells with constitutive E1B-55K expression, the activation of p53 target
T T Giang Ho et al.
The Journal of biological chemistry, 283(31), 21588-21598 (2008-06-06)
RhoA plays a significant role in actin stress fibers formation. However, silencing RhoA alone or RhoA and RhoC did not completely suppress the stress fibers suggesting a residual "Rho-like" activity. RhoB, the third member of the Rho subclass, is a
Marc L Chrétien et al.
Journal of cellular physiology, 224(2), 352-361 (2010-05-01)
Vascular endothelial cells display a wide panel of responses to changes in the shear stress that is exerted on them by blood flow. How sensory mechanisms convey information about flow conditions and how this information is integrated remains poorly understood.
Severa Bunda et al.
Nature communications, 6, 8859-8859 (2015-12-01)
Ras is phosphorylated on a conserved tyrosine at position 32 within the switch I region via Src kinase. This phosphorylation inhibits the binding of effector Raf while promoting the engagement of GTPase-activating protein (GAP) and GTP hydrolysis. Here we identify
Elisabetta Vergani et al.
Neoplasia (New York, N.Y.), 13(12), 1132-1142 (2012-01-14)
PLX4032/vemurafenib is a first-in-class small-molecule BRAF(V600E) inhibitor with clinical activity in patients with BRAF mutant melanoma. Nevertheless, drug resistance develops in treated patients, and strategies to overcome primary and acquired resistance are required. To explore the molecular mechanisms involved in
D Richani et al.
Molecular reproduction and development, 81(5), 422-435 (2014-02-04)
Recent studies have independently shown that cyclic adenosine 3'5'-monophosphate (cAMP) modulation prior to in vitro maturation (IVM) and epidermal growth factor (EGF)-like peptide supplementation during IVM improve subsequent oocyte developmental outcomes. This study investigated the effects of an IVM system
S R Dashti et al.
The Journal of biological chemistry, 276(11), 8059-8063 (2001-03-13)
Previous studies suggest that a PKC/Ras/MEKK1 cascade regulates involucrin (hINV) gene expression in human epidermal keratinocytes. MEK7, which is expressed in epidermis, has been identified as a member of this cascade (Efimova, T., LaCelle, P., Welter, J. F., and Eckert
Devipriya Subramaniyam et al.
The international journal of biochemistry & cell biology, 42(9), 1562-1570 (2010-06-22)
Cholesterol is the most abundant lipid component of the plasma membrane, and thus the equilibrium between free cholesterol and raft cholesterol act as a determinant of raft function and cell signalling. The mechanisms that regulate the lipid raft cholesterol levels
Inbal Wortzel et al.
iScience, 24(6), 102670-102670 (2021-07-01)
ERK1c is an alternatively spliced isoform of ERK1 that specifically regulates mitotic Golgi fragmentation, which allows division of the Golgi during mitosis. We have previously shown that ERK1c translocates to the Golgi during mitosis where it is activated by a
Laura H Rosenberg et al.
Cell reports, 25(10), 2755-2765 (2018-12-06)
The formation of myelinating Schwann cells (mSCs) involves the remarkable biogenic process, which rapidly generates the myelin sheath. Once formed, the mSC transitions to a stable homeostatic state, with loss of this stability associated with neuropathies. The histone deacetylases histone
Vladimir Jovasevic et al.
Nature neuroscience, 18(9), 1265-1271 (2015-08-19)
Fear-inducing memories can be state dependent, meaning that they can best be retrieved if the brain states at encoding and retrieval are similar. Restricted access to such memories can present a risk for psychiatric disorders and hamper their treatment. To
Natalia J Sumi et al.
Cell chemical biology, 26(9), 1240-1252 (2019-07-02)
Despite recent successes of precision and immunotherapies there is a persisting need for novel targeted or multi-targeted approaches in complex diseases. Through a systems pharmacology approach, including phenotypic screening, chemical and phosphoproteomics, and RNA-seq, we elucidated the targets and mechanisms
Pooja S Sridhar et al.
Scientific reports, 10(1), 10770-10770 (2020-07-03)
Fusarium Head Blight of wheat, caused by the filamentous fungus Fusarium graminearum, leads to devastating global food shortages and economic losses. While many studies have addressed the responses of both wheat and F. graminearum during their interaction, the possibility of
Andrea Haag et al.
eLife, 9 (2020-02-14)
The intracellular trafficking of growth factor receptors determines the activity of their downstream signaling pathways. Here, we show that the putative HSP-90 co-chaperone CHP-1 acts as a regulator of EGFR trafficking in C. elegans. Loss of chp-1 causes the retention
Eleni Zingkou et al.
Journal of dermatological science, 95(1), 28-35 (2019-07-01)
Netherton syndrome (NS) is a rare but severe type of ichthyosis characterized by atopy, allergies, and potentially lethal skin overdesquamation associated with highly elevated proteolytic activities in LEKTI-deficient epidermis. NS symptoms are recapitulated in Spink5-/- mouse where the gene encoding
Patrick Martin et al.
The FEBS journal, 276(6), 1667-1679 (2009-02-18)
Extracellular signal-related kinase (ERK) is a well-known kinase taking part in a signal transduction cascade in response to extracellular stimuli. ERK is generally viewed as a kinase that is rapidly and transiently phosphorylated following mitogenic stimulation. This activation results in
Kalyan C Kondapalli et al.
Nature communications, 6, 6289-6289 (2015-02-11)
Epidermal growth factor receptor (EGFR) signalling is a potent driver of glioblastoma, a malignant and lethal form of brain cancer. Disappointingly, inhibitors targeting receptor tyrosine kinase activity are not clinically effective and EGFR persists on the plasma membrane to maintain
Ida Rishal et al.
Developmental neurobiology, 70(2), 126-133 (2009-11-04)
Localized changes in the composition of axonal cytoplasm (axoplasm) are critical for many biological processes, including axon guidance, responses to injury, neurite outgrowth, and axon-glia interactions. Biochemical and molecular studies of these mechanisms have been heavily focused on in vitro
Severa Bunda et al.
Nature communications, 10(1), 661-661 (2019-02-10)
Capicua (CIC) is a transcriptional repressor that counteracts activation of genes downstream of receptor tyrosine kinase (RTK)/Ras/ERK signaling. It is well-established that tumorigenesis, especially in glioblastoma (GBM), is attributed to hyperactive RTK/Ras/ERK signaling. While CIC is mutated in other tumors
Karolina Plössl et al.
Molecular biology of the cell, 28(16), 2178-2189 (2017-06-16)
Mutations in the
Ammon B Corl et al.
Cell, 137(5), 949-960 (2009-05-26)
The consequences of alcohol use disorders (AUDs) are devastating to individuals and society, yet few treatments are currently available. To identify genes regulating the behavioral effects of ethanol, we conducted a genetic screen in Drosophila and identified a mutant, happyhour
Ruth Shiloh et al.
Nature communications, 9(1), 1759-1759 (2018-05-03)
Autophagy is an intracellular degradation process essential for adaptation to metabolic stress. DAPK2 is a calmodulin-regulated protein kinase, which has been implicated in autophagy regulation, though the mechanism is unclear. Here, we show that the central metabolic sensor, AMPK, phosphorylates
Jae Myoung Suh et al.
Nature, 513(7518), 436-439 (2014-07-22)
Fibroblast growth factor 1 (FGF1) is an autocrine/paracrine regulator whose binding to heparan sulphate proteoglycans effectively precludes its circulation. Although FGF1 is known as a mitogenic factor, FGF1 knockout mice develop insulin resistance when stressed by a high-fat diet, suggesting a
Skye C McIver et al.
PloS one, 7(4), e35553-e35553 (2012-04-27)
The last 100 years have seen a concerning decline in male reproductive health associated with decreased sperm production, sperm function and male fertility. Concomitantly, the incidence of defects in reproductive development, such as undescended testes, hypospadias and testicular cancer has
Junil Kim et al.
PLoS computational biology, 10(7), e1003763-e1003763 (2014-08-01)
Biological systems are known to be both robust and evolvable to internal and external perturbations, but what causes these apparently contradictory properties? We used Boolean network modeling and attractor landscape analysis to investigate the evolvability and robustness of the human
Leonardo R Ruzzi et al.
Frontiers in genetics, 11, 364-364 (2020-05-28)
Noonan syndrome and related disorders are caused by mutations in genes encoding for proteins of the RAS-ERK1/2 signaling pathway, which affect development by enhanced ERK1/2 activity. However, the mutations' effects throughout adult life are unclear. In this study, we identify
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