abstract：:To find new genes that influence liver lipid mass, we performed a genetic screen for zebrafish mutants with hepatic steatosis, a pathological accumulation of fat. The red moon (rmn) mutant develops hepatic steatosis as maternally deposited yolk is depleted. Conversely, hepatic steatosis is suppressed in rmn mutants by...

journal_title：Genes & development

authors： Hugo SE,Cruz-Garcia L,Karanth S,Anderson RM,Stainier DY,Schlegel A

更新日期：2012-02-01 00:00:00

abstract：:In response to skeletal muscle injury, satellite cells, which function as a myogenic stem cell population, become activated, expand through proliferation, and ultimately fuse with each other and with damaged myofibers to promote muscle regeneration. Here, we show that members of the Myocardin family of transcriptional...

journal_title：Genes & development

authors： Mokalled MH,Johnson AN,Creemers EE,Olson EN

更新日期：2012-01-15 00:00:00

abstract：:How RNA-binding proteins recognize specific sets of target mRNAs remains poorly understood because current approaches depend primarily on sequence information. In this study, we demonstrate that specific recognition of messenger RNAs (mRNAs) by RNA-binding proteins requires the correct spatial positioning of these seq...

journal_title：Genes & development

authors： Patel VL,Mitra S,Harris R,Buxbaum AR,Lionnet T,Brenowitz M,Girvin M,Levy M,Almo SC,Singer RH,Chao JA

更新日期：2012-01-01 00:00:00

abstract：:Cancer stem cells (CSCs) are postulated to be a small subset of tumor cells with tumor-initiating ability that shares features with normal tissue-specific stem cells. The origin of CSCs and the mechanisms underlying their genesis are poorly understood, and it is uncertain whether it is possible to obliterate CSCs with...

journal_title：Genes & development

authors： Song Y,Lu B

更新日期：2011-12-15 00:00:00

abstract：:To determine the prevalence of cotranscriptional splicing in Drosophila, we sequenced nascent RNA transcripts from Drosophila S2 cells as well as from Drosophila heads. Eighty-seven percent of the introns assayed manifest >50% cotranscriptional splicing. The remaining 13% are cotranscriptionally spliced poorly or slow...

journal_title：Genes & development

authors： Khodor YL,Rodriguez J,Abruzzi KC,Tang CH,Marr MT 2nd,Rosbash M

更新日期：2011-12-01 00:00:00

abstract：:In this issue of Genes & Development, Abruzzi et al. (pp. 2374-2386) use chromatin immunoprecipitation (ChIP) tiling array assays (ChIP-chip) to show that physical interactions between circadian (≅24-h) clock machineries and genomes are more widespread than previously thought and provide novel insights into how clocks...

journal_title：Genes & development

authors： Edery I

更新日期：2011-11-15 00:00:00

abstract：:Direct reprogramming of somatic cells into induced pluripotent stem cells (iPSCs) provides a unique opportunity to derive patient-specific stem cells with potential applications in tissue replacement therapies and without the ethical concerns of human embryonic stem cells (hESCs). However, cellular senescence, which c...

journal_title：Genes & development

authors： Lapasset L,Milhavet O,Prieur A,Besnard E,Babled A,Aït-Hamou N,Leschik J,Pellestor F,Ramirez JM,De Vos J,Lehmann S,Lemaitre JM

更新日期：2011-11-01 00:00:00

abstract：:MicroRNAs are important regulators in many cellular processes, including stem cell self-renewal. Recent studies demonstrated their function as pluripotency factors with the capacity for somatic cell reprogramming. However, their role in human embryonic stem (ES) cells (hESCs) remains poorly understood, partially due t...

journal_title：Genes & development

authors： Lipchina I,Elkabetz Y,Hafner M,Sheridan R,Mihailovic A,Tuschl T,Sander C,Studer L,Betel D

更新日期：2011-10-15 00:00:00

abstract：:Hundreds of microRNAs (miRNAs) have been discovered in metazoans and plants, and understanding of their biogenesis has advanced dramatically; however, relatively little is known about the cofactors necessary for miRNA regulation of target gene expression. In Caenorhabditis elegans, the conserved miRNA let-7 and its pa...

journal_title：Genes & development

authors： Hayes GD,Riedel CG,Ruvkun G

更新日期：2011-10-01 00:00:00

abstract：:AMP-activated protein kinase (AMPK) is a sensor of energy status that maintains cellular energy homeostasis. It arose very early during eukaryotic evolution, and its ancestral role may have been in the response to starvation. Recent work shows that the kinase is activated by increases not only in AMP, but also in ADP....

journal_title：Genes & development

authors： Hardie DG

更新日期：2011-09-15 00:00:00

abstract：:Subependymal nodules (SENs) and subependymal giant cell astrocytomas (SEGAs) are common brain lesions found in patients with tuberous sclerosis complex (TSC). These brain lesions present a mixed glioneuronal phenotype and have been hypothesized to originate from neural stem cells. However, this hypothesis has not been...

journal_title：Genes & development

authors： Zhou J,Shrikhande G,Xu J,McKay RM,Burns DK,Johnson JE,Parada LF

更新日期：2011-08-01 00:00:00

abstract：:To understand how chromosome shapes are determined by actions of condensins and cohesin, we devised a series of protocols in which their levels are precisely changed in Xenopus egg extracts. When the relative ratio of condensin I to II is forced to be smaller, embryonic chromosomes become shorter and thicker, being re...

journal_title：Genes & development

authors： Shintomi K,Hirano T

更新日期：2011-07-15 00:00:00

abstract：:Nitric oxide (NO) is an important second messenger involved in numerous biological processes, but how it regulates gene expression is not well understood. In this issue of Genes & Development, Cáceres and colleagues (pp. 1476-1485) report a critical requirement of NO as a direct regulator of gene expression through it...

journal_title：Genes & development

authors： Yamanaka N,O'Connor MB

更新日期：2011-07-15 00:00:00

abstract：:The heterochromatin-like structure formed by the yeast silent information regulator complex (SIR) represses transcription at the silent mating type loci and telomeres. Here, we report that tight protein-DNA complexes induce ectopic recruitment of the SIR complex, promoting gene silencing and changes in subnuclear loca...

journal_title：Genes & development

authors： Dubarry M,Loïodice I,Chen CL,Thermes C,Taddei A

更新日期：2011-07-01 00:00:00

abstract：:RNAi has revolutionized reverse genetics; however, RNAi is not necessarily ubiquitous or constitutive. Lund and colleagues (pp. 1121-1131) show that microRNA (miRNA) effector Argonautes (Agos) are limiting and easily saturated during early Xenopus embryogenesis. Moreover, this stage is devoid of slicing capacity. Supp...

journal_title：Genes & development

authors： Flynt AS,Lai EC

更新日期：2011-06-01 00:00:00

abstract：:Chromatin-modifying enzymes are known to be critical components for the correct differentiation of embryonic stem cells into specific lineages, such as neurons. Recently, the role of Polycomb group proteins has been studied in the specification and differentiation of muscle stem cells. In this perspective, we review a...

journal_title：Genes & development

authors： Conerly ML,MacQuarrie KL,Fong AP,Yao Z,Tapscott SJ

更新日期：2011-05-15 00:00:00

abstract：:Many tumors continuously depend on the initiating oncogenes, but whether this extends to their downstream targets is unclear. In this issue of Genes & Development, Sodir and colleagues (pp. 907-916) demonstrate an essential role for endogenous Myc proteins in maintaining the tumor microenvironment, providing an unexpe...

journal_title：Genes & development

authors： von Eyss B,Eilers M

更新日期：2011-05-01 00:00:00

abstract：:In the absence of growth signals, cells exit the cell cycle and enter into G0 or quiescence. Alternatively, cells enter senescence in response to inappropriate growth signals such as oncogene expression. The molecular mechanisms required for cell cycle exit into quiescence or senescence are poorly understood. The DREA...

journal_title：Genes & development

authors： Litovchick L,Florens LA,Swanson SK,Washburn MP,DeCaprio JA

更新日期：2011-04-15 00:00:00

abstract：:Protein kinases are key regulators of cellular processes. In spite of considerable effort, a full understanding of the pathways they participate in remains elusive. We globally investigated the proteins that interact with the majority of yeast protein kinases using protein microarrays. Eighty-five kinases were purifie...

journal_title：Genes & development

authors： Fasolo J,Sboner A,Sun MG,Yu H,Chen R,Sharon D,Kim PM,Gerstein M,Snyder M

更新日期：2011-04-01 00:00:00

abstract：:Dynamic assembly and disassembly of actin filaments is a major driving force for cell movements. Border cells in the Drosophila ovary provide a simple and genetically tractable model to study the mechanisms regulating cell migration. To identify new genes that regulate cell movement in vivo, we screened lethal mutatio...

journal_title：Genes & development

authors： Kim JH,Cho A,Yin H,Schafer DA,Mouneimne G,Simpson KJ,Nguyen KV,Brugge JS,Montell DJ

更新日期：2011-04-01 00:00:00

abstract：:Amplification of 8p11-12 in human breast cancers is associated with increased proliferation and tumor grade and reduced metastasis-free patient survival. We identified Zeppo1 (zinc finger elbow-related proline domain protein 1) (FLJ14299/ZNF703) within this amplicon as a regulator of cell adhesion, migration, and prol...

journal_title：Genes & development

authors： Slorach EM,Chou J,Werb Z

更新日期：2011-03-01 00:00:00

abstract：:Genome integrity is constantly monitored by sophisticated cellular networks, collectively termed the DNA damage response (DDR). A common feature of DDR proteins is their mobilization in response to genotoxic stress. Here, we outline how the development of various complementary methodologies has provided valuable insig...

journal_title：Genes & development

authors： Polo SE,Jackson SP

更新日期：2011-03-01 00:00:00

abstract：:A major class of bacterial small RNAs (sRNAs), along with RNA-binding protein Hfq and endoribonuclease RNase E, acts on target mRNAs through base-pairing, leading to translational repression and rapid degradation of the mRNAs. In this issue of Genes & Development, Prévost and colleagues (pp. 385-396) demonstrate by us...

journal_title：Genes & development

authors： Morita T,Aiba H

更新日期：2011-02-15 00:00:00

abstract：:Histone methylation plays an important role in regulating gene expression. One such methylation occurs at Lys 79 of histone H3 (H3K79) and is catalyzed by the yeast DOT1 (disruptor of telomeric silencing) and its mammalian homolog, DOT1L. Previous studies have demonstrated that germline disruption of Dot1L in mice res...

journal_title：Genes & development

authors： Nguyen AT,Xiao B,Neppl RL,Kallin EM,Li J,Chen T,Wang DZ,Xiao X,Zhang Y

更新日期：2011-02-01 00:00:00

abstract：:The epidemic of obesity and diabetes is causing an increased incidence of dyslipidemia-related heart failure. While the primary etiology of lipotoxic cardiomyopathy is an elevation of lipid levels resulting from an imbalance in energy availability and expenditure, increasing evidence suggests a relationship between dy...

journal_title：Genes & development

authors： Lim HY,Wang W,Wessells RJ,Ocorr K,Bodmer R

更新日期：2011-01-15 00:00:00

abstract：:The Agrobacterium Ti plasmid (T-DNA) 6b proteins interact with many different host proteins implicated in plant cell proliferation. Here, we show that Arabidopsis plants overexpressing 6b display microRNA (miRNA) deficiency by directly targeting SERRATE and AGO1 via a specific loop fragment (residues 40-55). In additi...

journal_title：Genes & development

authors： Wang M,Soyano T,Machida S,Yang JY,Jung C,Chua NH,Yuan YA

更新日期：2011-01-01 00:00:00

abstract：:Organization into polarized three-dimensional structures defines whether epithelial cells are normal or malignant. In a model of morphogenesis, we show that inhibiting key signaling pathways in human breast cancer cells leads to "phenotypic reversion" of the malignant cells. Using architecture as an endpoint, we repor...

journal_title：Genes & development

authors： Beliveau A,Mott JD,Lo A,Chen EI,Koller AA,Yaswen P,Muschler J,Bissell MJ

更新日期：2010-12-15 00:00:00

abstract：:Glucose and glutamine serve as the two primary carbon sources in proliferating cells, and uptake of both nutrients is directed by growth factor signaling. Although either glucose or glutamine can potentially support mitochondrial tricarboxylic acid (TCA) cycle integrity and ATP production, we found that glucose depriv...

journal_title：Genes & development

authors： Wellen KE,Lu C,Mancuso A,Lemons JM,Ryczko M,Dennis JW,Rabinowitz JD,Coller HA,Thompson CB

更新日期：2010-12-15 00:00:00

abstract：:All viruses require cellular ribosomes to translate their mRNAs. Viruses producing methyl-7 (m⁷) GTP-capped mRNAs, like Herpes Simplex Virus-1 (HSV-1), stimulate cap-dependent translation by activating mTORC1 to inhibit the translational repressor 4E-binding protein 1 (4E-BP1). Here, we establish that the HSV-1 kinase...

journal_title：Genes & development

authors： Chuluunbaatar U,Roller R,Feldman ME,Brown S,Shokat KM,Mohr I

更新日期：2010-12-01 00:00:00

abstract：:To define the functional pathways regulating epithelial cell migration, we performed a genome-wide RNAi screen using 55,000 pooled lentiviral shRNAs targeting ∼11,000 genes, selecting for transduced cells with increased motility. A stringent validation protocol generated a set of 31 genes representing diverse pathways...

journal_title：Genes & development

authors： Smolen GA,Zhang J,Zubrowski MJ,Edelman EJ,Luo B,Yu M,Ng LW,Scherber CM,Schott BJ,Ramaswamy S,Irimia D,Root DE,Haber DA

更新日期：2010-12-01 00:00:00

abstract：:Cosuppression is a silencing phenomenon triggered by the introduction of homologous DNA sequences into the genomes of organisms as diverse as plants, fungi, flies, and nematodes. Here we report sex-induced silencing (SIS), which is triggered by tandem integration of a transgene array in the human fungal pathogen Crypt...

journal_title：Genes & development

authors： Wang X,Hsueh YP,Li W,Floyd A,Skalsky R,Heitman J

更新日期：2010-11-15 00:00:00

abstract：:Apoptosis is an important mechanism to eliminate potentially tumorigenic cells. The tumor suppressor p53 plays a pivotal role in this process. Many tumors harbor mutant p53, but others evade its tumor-suppressive effects by altering the expression of proteins that regulate the p53 pathway. ASPP1 (apoptosis-stimulating...

journal_title：Genes & development

authors： Aylon Y,Ofir-Rosenfeld Y,Yabuta N,Lapi E,Nojima H,Lu X,Oren M

更新日期：2010-11-01 00:00:00

abstract：:Nonsense-mediated mRNA decay (NMD) is a quality control mechanism that detects and degrades mRNAs containing premature stop codons (PTCs). In vertebrates, PTCs trigger efficient NMD when located upstream of an exon junction complex (EJC). Degradation of PTC-containing mRNAs requires the endonucleolytic activity of SMG...

journal_title：Genes & development

authors： Kashima I,Jonas S,Jayachandran U,Buchwald G,Conti E,Lupas AN,Izaurralde E

更新日期：2010-11-01 00:00:00

abstract：:Serotonin is a bioamine regulating bone mass accrual differently depending on its site of synthesis. It decreases accrual when synthesized in the gut, and increases it when synthesized in the brain. The signal transduction events elicited by gut-derived serotonin once it binds to the Htr1b receptor present on osteobla...

journal_title：Genes & development

authors： Oury F,Yadav VK,Wang Y,Zhou B,Liu XS,Guo XE,Tecott LH,Schutz G,Means AR,Karsenty G

更新日期：2010-10-15 00:00:00

abstract：:Pre-mRNA processing is coupled with transcription. It is still unclear if the transcription machinery can also directly affect the cytoplasmic fate of a transcript, such as its intracellular localization. In yeast, the RNA-binding protein She2p binds several mRNAs and targets them for localization at the bud. Here we ...

journal_title：Genes & development

authors： Shen Z,St-Denis A,Chartrand P

更新日期：2010-09-01 00:00:00

abstract：:In response to DNA damage, cells activate a complex signal transduction network called the DNA damage response (DDR). To enhance our current understanding of the DDR network, we performed a genome-wide RNAi screen to identify genes required for resistance to ionizing radiation (IR). Along with a number of known DDR ge...

journal_title：Genes & development

authors： Hurov KE,Cotta-Ramusino C,Elledge SJ

更新日期：2010-09-01 00:00:00

abstract：:Eukaryotic translation initiation begins with ribosomal recruitment of aminoacylated initiator tRNA (Met-tRNA(Met)(i)) by eukaryotic initiation factor eIF2. In cooperation with eIF3, eIF1, and eIF1A, Met-tRNA(Met)(i)/eIF2/GTP binds to 40S subunits yielding 43S preinitiation complexes that attach to the 5'-terminal reg...

journal_title：Genes & development

authors： Skabkin MA,Skabkina OV,Dhote V,Komar AA,Hellen CU,Pestova TV

更新日期：2010-08-15 00:00:00

abstract：:In the July 15, 2010, issue of Genes & Development, Yoon and colleagues (pp. 1507-1518) report that, in a siRNA knockdown survey of 6363 genes in mouse C2C12 cells, they discovered 150 genes that regulated mitochondrial biogenesis and bioenergetics. Many of these genes have been studied previously for their importance...

journal_title：Genes & development

authors： Wallace DC

更新日期：2010-08-01 00:00:00

abstract：:Pre-rRNA transcription by RNA Polymerase I (Pol I) is very robust on active rDNA repeats. Loss of yeast Topoisomerase I (Top1) generated truncated pre-rRNA fragments, which were stabilized in strains lacking TRAMP (Trf4/Trf5-Air1/Air2-Mtr4 polyadenylation complexes) or exosome degradation activities. Loss of both Top1...

journal_title：Genes & development

authors： El Hage A,French SL,Beyer AL,Tollervey D

更新日期：2010-07-15 00:00:00

abstract：:In Escherichia coli, the major nucleoid protein H-NS limits transcription by acting as a repressor or transcriptional silencer, presumably by its ability to close the looped chromosome domains in the nucleoid through DNA-protein-DNA bridging. Here, we demonstrate the direct involvement of H-NS as a positive factor sti...

journal_title：Genes & development

authors： Park HS,Ostberg Y,Johansson J,Wagner EG,Uhlin BE

更新日期：2010-07-01 00:00:00