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shaye greenwald

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https://www.readbyqxmd.com/read/27697907/a-network-of-conserved-formins-regulated-by-the-guanine-exchange-factor-exc-5-and-the-gtpase-cdc-42-modulates-tubulogenesis-in-vivo
#1
Daniel D Shaye, Iva Greenwald
The C. elegans excretory cell (EC) is a powerful model for tubulogenesis, a conserved process that requires precise cytoskeletal regulation. EXC-6, an ortholog of the disease-associated formin INF2, coordinates cell outgrowth and lumen formation during EC tubulogenesis by regulating F-actin at the tip of the growing canal and the dynamics of basolateral microtubules. EXC-6 functions in parallel with EXC-5/FGD, a predicted activator of the Rho GTPase Cdc42. Here, we identify the parallel pathway: EXC-5 functions through CDC-42 to regulate two other formins: INFT-2, another INF2 ortholog, and CYK-1, the sole ortholog of the mammalian diaphanous (mDia) family of formins...
November 15, 2016: Development
https://www.readbyqxmd.com/read/26699636/maltreatment-child-welfare-and-recidivism-in-a-sample-of-deep-end-crossover-youth
#2
Michael T Baglivio, Kevin T Wolff, Alex R Piquero, Shay Bilchik, Katherine Jackowski, Mark A Greenwald, Nathan Epps
Although research has oft-documented a maltreatment-delinquency link, the effect of involvement in-and timing of-child welfare system involvement on offending has received less attention. We examine whether the timing of child welfare involvement has differential effects on recidivism of deep-end juvenile offenders (youth who have been adjudicated delinquent by the court and placed in juvenile justice residential programs). The current study uses a large, diverse sample of 12,955 youth completing juvenile justice residential programs between 1 January 2010 and 30 June 2013 in Florida (13 % female, 55 % Black, 11 % Hispanic)...
April 2016: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/25771894/the-disease-associated-formin-inf2-exc-6-organizes-lumen-and-cell-outgrowth-during-tubulogenesis-by-regulating-f-actin-and-microtubule-cytoskeletons
#3
Daniel D Shaye, Iva Greenwald
We investigate how outgrowth at the basolateral cell membrane is coordinated with apical lumen formation in the development of a biological tube by characterizing exc-6, a gene required for C. elegans excretory cell (EC) tubulogenesis. We show that EXC-6 is orthologous to the human formin INF2, which polymerizes filamentous actin (F-actin) and binds microtubules (MTs) in vitro. Dominant INF2 mutations cause focal segmental glomerulosclerosis (FSGS), a kidney disease, and FSGS+Charcot-Marie-Tooth neuropathy...
March 23, 2015: Developmental Cell
https://www.readbyqxmd.com/read/21984229/unpredicted-electron-injection-in-cds-cdse-quantum-dot-sensitized-zro2-solar-cells
#4
Shlomit Greenwald, Sven Rühle, Menny Shalom, Shay Yahav, Arie Zaban
A quantum dot sensitized solar cell based on a porous ZrO(2) film, sensitized with CdSe quantum dots using CdS as an intermediate layer is presented. We observe electron injection from photo-excited quantum dots into the ZrO(2), which is unexpected due to the much higher conduction band edge (closer to the vacuum level) of bulk ZrO(2) compared to TiO(2).
November 21, 2011: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/21647448/ortholist-a-compendium-of-c-elegans-genes-with-human-orthologs
#5
Daniel D Shaye, Iva Greenwald
BACKGROUND: C. elegans is an important model for genetic studies relevant to human biology and disease. We sought to assess the orthology between C. elegans and human genes to understand better the relationship between their genomes and to generate a compelling list of candidates to streamline RNAi-based screens in this model. RESULTS: We performed a meta-analysis of results from four orthology prediction programs and generated a compendium, "OrthoList", containing 7,663 C...
2011: PloS One
https://www.readbyqxmd.com/read/16236769/lin-12-notch-trafficking-and-regulation-of-dsl-ligand-activity-during-vulval-induction-in-caenorhabditis-elegans
#6
Daniel D Shaye, Iva Greenwald
A novel mode of crosstalk between the EGFR-Ras-MAPK and LIN-12/Notch pathways occurs during the patterning of a row of vulval precursor cells (VPCs) in Caenorhabditis elegans: activation of the EGFR-Ras-MAPK pathway in the central VPC promotes endocytosis and degradation of LIN-12 protein. LIN-12 downregulation in the central VPC is a prerequisite for the activity of the lateral signal, which activates LIN-12 in neighboring VPCs. Here we characterize cis-acting targeting sequences in the LIN-12 intracellular domain and find that in addition to a di-leucine motif, serine/threonine residues are important for internalization and lysine residues are important for post-internalization trafficking and degradation...
November 2005: Development
https://www.readbyqxmd.com/read/12478297/endocytosis-mediated-downregulation-of-lin-12-notch-upon-ras-activation-in-caenorhabditis-elegans
#7
Daniel D Shaye, Iva Greenwald
The coordination of signals from different pathways is important for cell fate specification during animal development. Here, we define a novel mode of crosstalk between the epidermal growth factor receptor/Ras/mitogen-activated protein kinase cascade and the LIN-12/Notch pathway during Caenorhabditis elegans vulval development. Six vulval precursor cells (VPCs) are initially equivalent but adopt different fates as a result of an inductive signal mediated by the Ras pathway and a lateral signal mediated by the LIN-12/Notch pathway...
December 12, 2002: Nature
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