keyword
MENU ▼
Read by QxMD icon Read
search

GRB2

keyword
https://www.readbyqxmd.com/read/28636612/laminin-211-inhibits-protein-kinase-a-in-schwann-cells-to-modulate-neuregulin-1-type-iii-driven-myelination
#1
Monica Ghidinelli, Yannick Poitelon, Yoon Kyoung Shin, Dominique Ameroso, Courtney Williamson, Cinzia Ferri, Marta Pellegatta, Kevin Espino, Amit Mogha, Kelly Monk, Paola Podini, Carla Taveggia, Klaus-Armin Nave, Lawrence Wrabetz, Hwan Tae Park, Maria Laura Feltri
Myelin is required for proper nervous system function. Schwann cells in developing nerves depend on extrinsic signals from the axon and from the extracellular matrix to first sort and ensheathe a single axon and then myelinate it. Neuregulin 1 type III (Nrg1III) and laminin α2β1γ1 (Lm211) are the key axonal and matrix signals, respectively, but how their signaling is integrated and if each molecule controls both axonal sorting and myelination is unclear. Here, we use a series of epistasis experiments to show that Lm211 modulates neuregulin signaling to ensure the correct timing and amount of myelination...
June 2017: PLoS Biology
https://www.readbyqxmd.com/read/28618656/role-of-growth-factor-receptor-bound-2-in-ccl4-induced-hepatic-fibrosis
#2
Shanfei Ge, Ying Xiong, Xiaoping Wu, Jianping Xie, Fei Liu, Jinni He, Tianxing Xiang, Na Cheng, Lingling Lai, Yuanbin Zhong
BACKGROUND: Growth Factor Receptor-bound 2 (GRB2) plays a crucial role in regulation of cellular function including proliferation and differentiation, and we previously identified GRB2 as promoting HSCs (HSCs) proliferation. However, the underlying mechanisms that are involving in the regulation of GRB2 in hepatic fibrogenesis remain unknown. METHODS: In the present study, we tested the function of GRB2 in hepatic fibrosis. Hepatic fibrosis was induced by subcutaneous CCl4 administration at a dose of 3mL/kg in rats...
June 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28602951/ced-10-wasp-arp2-3-signaling-axis-regulates-apoptotic-cell-corpse-engulfment-in-c-elegans
#3
Dou Wu, Yongping Chai, Zhiwen Zhu, Wenjing Li, Guangshuo Ou, Wei Li
Efficient clearance of apoptotic cells is essential for tissue homeostasis in metazoans. Genetic studies in Caenorhabditis elegans have identified signaling cascades that activate CED-10/Rac1 GTPase and promote actin cytoskeletal rearrangement during apoptotic cell engulfment. However, the molecular connection between CED-10 activation and actin reorganization remains elusive. Here, we provide evidence that CED-10 binds to the Arp2/3 nucleation promoting factor WASP; CED-10 recruits WASP and Arp2/3 to apoptotic cell corpses in the phagocytes...
June 9, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28599273/targeting-bcr-abl-stem-progenitor-cells-and-bcr-abl-t315i-mutant-cells-by-effective-inhibition-of-the-bcr-abl-tyr177-grb2-complex
#4
Min Chen, Ali G Turhan, Hongxia Ding, Qingcong Lin, Kun Meng, Xiaoyan Jiang
Treatment of BCR-ABL+ human leukemia has been significantly improved by ABL tyrosine kinase inhibitors (TKIs), but they are not curative for most patients and relapses are frequently associated with BCR-ABL mutations, warranting new targets for improved treatments. We have now demonstrated that protein expression of human estrogen receptor alpha 36 (ERα36), an alternative splicing variant of human estrogen receptor alpha 66 (ERα66), is highly increased in TKI-insensitive CD34+ chronic myeloid leukemia (CML) cells and BCR-ABL-T315I mutant cells, and is abnormally localized in plasma membrane and cytoplasm...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28591834/cholinergic-grb2-associated-binding-protein-1-regulates-cognitive-function
#5
Nan-Nan Lu, Chao Tan, Ning-He Sun, Ling-Xiao Shao, Xiu-Xiu Liu, Yin-Ping Gao, Rong-Rong Tao, Quan Jiang, Cheng-Kun Wang, Ji-Yun Huang, Kui Zhao, Guang-Fa Wang, Zhi-Rong Liu, Kohji Fukunaga, Ying-Mei Lu, Feng Han
Grb2-associated-binding protein 1 (Gab1) is a docking/scaffolding molecule known to play an important role in cell growth and survival. Here, we report that Gab1 is decreased in cholinergic neurons in Alzheimer's disease (AD) patients and in a mouse model of AD. In mice, selective ablation of Gab1 in cholinergic neurons in the medial septum impaired learning and memory and hippocampal long-term potentiation. Gab1 ablation also inhibited SK channels, leading to an increase in firing in septal cholinergic neurons...
June 7, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28558797/expression-of-signaling-adaptor-proteins-predicts-poor-prognosis-in-pancreatic-ductal-adenocarcinoma
#6
Lili Wang, Junliang Lu, Huanwen Wu, Li Wang, Xiaolong Liang, Zhiyong Liang, Tonghua Liu
BACKGROUND: Adaptor proteins bridge the gap between cell surface receptors and their downstream signaling elements. The clinicopathological and prognostic values of adaptor proteins remain poorly understood. The purpose of the present study was to explore the expression and prognostic value of three adaptor proteins: GRB2-associated binding protein 2 (GAB2), CRK-like protein (CRKL) and fibroblast growth factor receptor substrate 2 (FRS2) in pancreatic ductal adenocarcinoma (PDAC). METHODS: The expression of GAB2, CRKL, and FRS2 in 77 formalin fixed paraffin embedded (FFPE) samples from 77 PDAC patients, along with three paired fresh PDAC and matched normal tissues from 3 PDAC patients was analyzed by immunohistochemistry and western blot, respectively...
May 30, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28542067/grb2-associated-binder-1-is-required-for-extrafusal-and-intrafusal-muscle-fiber-development
#7
So Y Park, So Y Jang, Yoon K Shin, Byeol A Yoon, Hye J Lee, Hwan T Park
The neuregulin-1 (NRG1) signaling pathway plays an important role in the development of the peripheral neuromuscular system, including in muscle spindle and postnatal myelination. We previously showed that NRG1 on the axonal membrane regulates peripheral nerve myelination through Grb2-associated binder 1 (Gab1), a scaffolding mediator of receptor tyrosine kinase signaling. Here, we determined the role of Gab1 in the development of muscles and the muscle spindle using muscle-specific conditional Gab1 knockout mice...
July 5, 2017: Neuroreport
https://www.readbyqxmd.com/read/28539665/copy-number-variants-and-candidate-gene-mutations-in-isolated-split-hand-foot-malformation
#8
Tonia C Carter, Robert J Sicko, Denise M Kay, Marilyn L Browne, Paul A Romitti, Zoё L Edmunds, Aiyi Liu, Ruzong Fan, Charlotte M Druschel, Michele Caggana, Lawrence C Brody, James L Mills
Split hand/foot malformation (SHFM) is a congenital limb deficiency with missing or shortened central digits. Some SHFM genes have been identified but the cause of many SHFM cases is unknown. We used single-nucleotide polymorphism (SNP) microarray analysis to detect copy-number variants (CNVs) in 25 SHFM cases without other birth defects from New York State (NYS), prioritized CNVs absent from population CNV databases, and validated these CNVs using quantitative real-time polymerase chain reaction (qPCR). We tested for the validated CNVs in seven cases from Iowa using qPCR, and also sequenced 36 SHFM candidate genes in all the subjects...
May 25, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28526413/tcr-crosslinking-promotes-crk-adaptor-protein-binding-to-tyrosine-phosphorylated-cd3%C3%AE-chain
#9
Guangyu Dong, Rachel Kalifa, Pulak Ranjan Nath, Sigal Gelkop, Noah Isakov
T cell antigen receptor (TCR) binding of a peptide antigen presented by antigen-presenting cells (APCs) in the context of surface MHC molecules initiates signaling events that regulate T cell activation, proliferation and differentiation. A key event in the activation process is the phosphorylation of the conserved tyrosine residues within the CD3 chain immunoreceptor tyrosine-based activation motifs (ITAMs), which operate as docking sites for SH2 domain-containing effector proteins. Phosphorylation of the CD3ζ ITAMs renders the CD3 chain capable of binding the ζ-chain associated protein 70 kDa (ZAP70), a protein tyrosine kinase that is essential for T cell activation...
May 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28521404/silencing-tak1-alters-gene-expression-signatures-in-bladder-cancer-cells
#10
Jimin Chen, Nan Zhang, Jiaming Wen, Zhewei Zhang
The aim of the present study was to identify the differentially expressed genes (DEGs) that are induced by the silencing of transforming growth factor-β-activated kinase 1 (TAK1) in bladder cancer cells and to analyze the potential biological effects. Dataset GSE52452 from mutant fibroblast growth factor receptor 3 (FGFR3) bladder cancer cells transfected with control siRNA or TAK1-specific siRNA was downloaded from Gene Expression Omnibus. The DEGs between the two groups were identified using Limma package following data pre-processing by Affy in Bioconductor...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28512623/ca-2-microdomains-in-t-lymphocytes
#11
REVIEW
Insa M A Wolf, Andreas H Guse
Early Ca(2+) signaling is characterized by occurrence of Ca(2+) microdomains formed by opening of single or clusters of Ca(2+) channels, thereby initiating first signaling and subsequently activating global Ca(2+) signaling mechanisms. However, only few data are available focusing on the first seconds and minutes of Ca(2+) microdomain formation and related signaling pathways in activated T-lymphocytes. In this review, we condense current knowledge on Ca(2+) microdomain formation in T-lymphocytes and early Ca(2+) signaling, function of Ca(2+) microdomains, and microdomain organization...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28496318/pri-microrna-124-rs531564-polymorphism-minor-allele-increases-the-risk-of-pulmonary-artery-hypertension-by-abnormally-enhancing-proliferation-of-pulmonary-artery-smooth-muscle-cells
#12
Quanzhong Li, Zongjie Qian, Linqing Wang
MicroRNA-124 (miR-124) has been reported to be downregulated in the cells exposed to hypoxia, which was confirmed in our study. We then used online microRNA target prediction tools to identify GRB2, SMAD5, and JAG1 as the candidate target genes of miR-124, and we next validated GRB2 as a direct gene by using luciferase reporter system. We also established the regulatory relationship between miR-124 and GRB2 by showing the negative linear relationship between GRB2 and miR-124 expression. Furthermore, we investigated the miR-124 and GRB2 expression levels of different genotypes including CC (n=30), GC (n=18), and GG (n=4), which supported the hypothesis that the presence of minor allele (C) of rs531564 polymorphism compromised the expression of miR-124...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28470949/loss-of-sh3gl2-promotes-the-migration-and-invasion-behaviours-of-glioblastoma-cells-through-activating-the-stat3-mmp2-signalling
#13
Yufu Zhu, Xiang Zhang, Lei Wang, Zhe Ji, Manyi Xie, Xinyu Zhou, Zhiyi Liu, Hengliang Shi, Rutong Yu
SH3GL2 (Src homology 3 (SH3) domain GRB2-like 2) is mainly expressed in the central nervous system and regarded as a tumour suppressor in human glioma. However, the molecular mechanism of the SH3GL2 protein involved in malignant behaviours of human glioma has not been elucidated. In this study, we tried to investigate the role of SH3GL2 in glioma cell migration and invasion and explore its underlined molecular mechanism. Firstly, we discovered that the protein level of SH3GL2 was widely decreased in the human glioma patients, especially in high-grade glioma tissues...
May 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28455498/grb2-carboxyl-terminal-sh3-domain-can-bivalently-associate-with-two-ligands-in-an-sh3-dependent-manner
#14
Richa Arya, Rohit Singh Dangi, Pinakin K Makwana, Ambrish Kumar, Santosh Kumar Upadhyay, Monica Sundd
Src homology domain containing leukocyte protein of 65 kDa (SLP65), the growth factor receptor binding protein 2 (Grb2), and the guanine nucleotide exchange factor for the Rho family GTPases (Vav), self associate in unstimulated B cells as components of the preformed B cell receptor transducer module, in an SH3-dependent manner. The complex enables the B cell to promptly respond to BCR aggregation, resulting in signal amplification. It also facilitates Vav translocation to the membrane rafts, for activation...
April 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28452363/mechanism-of-sos-pr-domain-autoinhibition-revealed-by-single-molecule-assays-on-native-protein-from-lysate
#15
Young Kwang Lee, Shalini T Low-Nam, Jean K Chung, Scott D Hansen, Hiu Yue Monatrice Lam, Steven Alvarez, Jay T Groves
The guanine nucleotide exchange factor (GEF) Son of Sevenless (SOS) plays a critical role in signal transduction by activating Ras. Here we introduce a single-molecule assay in which individual SOS molecules are captured from raw cell lysate using Ras-functionalized supported membrane microarrays. This enables characterization of the full-length SOS protein, which has not previously been studied in reconstitution due to difficulties in purification. Our measurements on the full-length protein reveal a distinct role of the C-terminal proline-rich (PR) domain to obstruct the engagement of allosteric Ras independently of the well-known N-terminal domain autoinhibition...
April 28, 2017: Nature Communications
https://www.readbyqxmd.com/read/28444820/casticin-impairs-cell-migration-and-invasion-of-mouse-melanoma-b16f10-cells-via-pi3k-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways
#16
Yung-Luen Shih, Hsiao-Min Chou, Hsiu-Chen Chou, Hsu-Feng Lu, Yung-Lin Chu, Hung-Sheng Shang, Jing-Gung Chung
Casticin, a polymethoxyflavone, is one of the major active components obtained from Fructus viticis, which have been shown to have anticancer activities including induce cell apoptosis in human cancer cells. The aim of this study was to investigate the molecular mechanisms by which casticin inhibits cell migration and invasion of mouse melanoma B16F10 cells. Cell viability was examined by MTT assay and the results indicated that casticin decreased the total percentages of viable cells in dose-dependent manners...
April 26, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28436964/swell1-is-a-regulator-of-adipocyte-size-insulin-signalling-and-glucose-homeostasis
#17
Yanhui Zhang, Litao Xie, Susheel K Gunasekar, Dan Tong, Anil Mishra, William J Gibson, Chuansong Wang, Trevor Fidler, Brodie Marthaler, Aloysius Klingelhutz, E Dale Abel, Isaac Samuel, Jessica K Smith, Lei Cao, Rajan Sah
Adipocytes undergo considerable volumetric expansion in the setting of obesity. It has been proposed that such marked increases in adipocyte size may be sensed via adipocyte-autonomous mechanisms to mediate size-dependent intracellular signalling. Here, we show that SWELL1 (LRRC8a), a member of the Leucine-Rich Repeat Containing protein family, is an essential component of a volume-sensitive ion channel (VRAC) in adipocytes. We find that SWELL1-mediated VRAC is augmented in hypertrophic murine and human adipocytes in the setting of obesity...
May 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28426660/exhaustive-search-of-linear-information-encoding-protein-peptide-recognition
#18
Abdellali Kelil, Benjamin Dubreuil, Emmanuel D Levy, Stephen W Michnick
High-throughput in vitro methods have been extensively applied to identify linear information that encodes peptide recognition. However, these methods are limited in number of peptides, sequence variation, and length of peptides that can be explored, and often produce solutions that are not found in the cell. Despite the large number of methods developed to attempt addressing these issues, the exhaustive search of linear information encoding protein-peptide recognition has been so far physically unfeasible...
April 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28422494/genetically-encoded-2-aryl-5-carboxytetrazoles-for-site-selective-protein-photo-cross-linking
#19
Yulin Tian, Marco Paolo Jacinto, Yu Zeng, Zhipeng Yu, Jun Qu, Wenshe R Liu, Qing Lin
The genetically encoded photo-cross-linkers promise to offer a temporally controlled tool to map transient and dynamic protein-protein interaction complexes in living cells. Here we report the synthesis of a panel of 2-aryl-5-carboxytetrazole-lysine analogs (ACTKs) and their site-specific incorporation into proteins via amber codon suppression in Escherichia coli and mammalian cells. Among five ACTKs investigated, N-methylpyrroletetrazole-lysine (mPyTK) was found to give robust and site-selective photo-cross-linking reactivity in E...
May 3, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28420432/elevated-gab2-induces-tumor-growth-and-angiogenesis-in-colorectal-cancer-through-upregulating-vegf-levels
#20
Chenbo Ding, Junmin Luo, Xiaobo Fan, Longmei Li, Shanshan Li, Kunming Wen, Jihong Feng, Guoqiu Wu
BACKGROUND: Grb2-associated binder 2 (Gab2) is a scaffolding protein that serves as a critical signaling amplifier downstream of tyrosine kinase receptors. Our previous study has shown that Gab2 induces epithelial-to-mesenchymal transition (EMT) and promotes metastasis in colorectal cancer (CRC). However, the role of Gab2 in CRC growth and angiogenesis remains unclear. METHODS: The expression of vascular endothelial growth factor (VEGF) in different colorectal tissues was detected by immunohistochemistry and qRT-PCR to evaluate its correlation with Gab2...
April 18, 2017: Journal of Experimental & Clinical Cancer Research: CR
keyword
keyword
61920
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"