RNA-Seq study from Caco2 cells following transduction with control shRNA and shRNA against CHD6
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No sample metadata fields
View SamplesGlobal gene expression analysis of grapevine cv. Pinot Noir berries during development and ripening. Time-course comparison of samples collected at three developmental stages (stages 33, 34 and 36 according to the modified E-L system, ref: Coombe BG, Aust J Grape Wine Res 1995, 1: 104-110) during three seasons (2003, 2005 and 2006).
Genome-wide transcriptional analysis of grapevine berry ripening reveals a set of genes similarly modulated during three seasons and the occurrence of an oxidative burst at vèraison.
Age, Specimen part, Time
View SamplesPediatric acute lymphoblastic leukemia (ALL) contains cytogenetically distinct subtypes that respond differently to cytotoxic drugs. Subtype classification can be also achieved through gene expression profiling. However, how to apply such classifiers to a single patient and correctly diagnose the disease subtype in an independent patient group has not been addressed. Furthermore, the underlying regulatory mechanisms responsible for the subtype-specific gene expression patterns are still largely unknown. Here, by combining three published microarray datasets (PMIDs: 12086872, 12730115, 17002788) on 535 Caucasian samples and generating a new dataset on 100 Chinese children ALL samples, we were able to 1) identify a 62-gene classifier with 97.6% accuracy from the Caucasian samples and validated it on the completely independent set of 100 Chinese samples, 2) to uncover potential regulatory networks of ALL subtypes. The classifier we identified was so far the only one that could be applied directly to a single sample and sustained validation in a large independent patient group. Our results also suggest that the etiology of ALL is largely the same among different ethnic groups, and that the transcription factor hubs in the predicted regulatory network might play important roles in regulating gene expression and development of ALL.
Gene expression-based classification and regulatory networks of pediatric acute lymphoblastic leukemia.
Specimen part, Disease, Race
View SamplesEthylene plays major roles in adaptive growth of rice plants in water-saturated soil; however, ethylene signaling in rice is largely unclear. Here, we report identification and characterization of ethylene-response mutants based on distinct ethylene-response phenotypes of dark-grown rice seedlings.
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Specimen part, Treatment
View SamplesRecent studies have demonstrated that human astrocytes and fibroblasts can be directly converted into functional neurons by small molecules. However, the reported reprogramming efficiency of human fibroblasts is extremely low, resulting in limited clinical application for the treatment of neurological disorders. Here, we report that human fibroblasts can be efficiently and directly reprogrammed into functional neuron-like cells (with a yield up to 82% TUJ1-positive neuron-like cells) by serially exposing cells to a combination of small molecules. These chemically induced neurons (iNs) displayed typical neuronal morphologies and showed neuronal transcriptional networks resembling human primary embryonic brain neurons. The iNs also exhibited mature firing patterns and formed functional synapse when cultured on mouse astrocytes. Importantly, the iNs can survive, mature and integrate into local circuits after transplantation into the postnatal mouse brains. Our study provides a rapid and efficient transgene-free approach for chemically generating neuron-like cells from human fibroblasts. Further, our approach offers strategies for disease modeling and drug discovery in central nervous system disorders.
Rapid and Efficient Conversion of Human Fibroblasts into Functional Neurons by Small Molecules.
Sex, Specimen part
View SamplesReceptor-like kinases (RLKs) play important roles in plant development and defense responses; however, their functions in other processes remain unclear. Here, we report that OsSIK2, an S-domain RLK from rice, is involved in abiotic stress and senescence process, integrating stress signals into developmental program for adaptive growth.
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Specimen part
View SamplesEthylene plays major roles in adaptive growth of rice plants in water-saturated soil; however, ethylene signaling in rice is largely unclear. Here, we report identification and characterization of ethylene-response mutants based on distinct ethylene-response phenotypes of dark-grown rice seedlings.
No associated publication
Specimen part, Treatment
View SamplesIn plants, fatty acids are de novo synthesized predominantly in plastids fromacetyl-CoA. Although fatty acid biosynthesis has been biochemically well-studied, little isknown about the regulatory mechanisms of the pathway. Here, we show that overexpressionof the Arabidopsis (Arabidopsis thaliana) LEAFY COTYLEDON1 (LEC1) gene causesglobally increased expression of fatty acid biosynthetic genes, which are involved in keyreactions of condensation, chain elongation and desaturation of fatty acid biosynthesis. Inthe plastidial fatty acid synthetic pathway, over 58% of known enzyme-coding genes areupregulated in LEC1-overexpressing transgenic plants, including those encoding threesubunits of acetyl-CoA carboxylase, a key enzyme controlling the fatty acid biosynthesisflux. Moreover, genes involved in glycolysis and lipid accumulation are also upregulated.Consistent with these results, levels of major fatty acid species and lipids were substantiallyincreased in the transgenic plants. Genetic analysis indicates that the LEC1 function ispartially dependent on ABSCISIC ACID INSENSITIVE3, FUSCA3 and WRINKLED1 in theregulation of fatty acid biosynthesis. Moreover, a similar phenotype was observed intransgenic Arabidopsis plants overexpressing two LEC1-like genes of Brassica napus.These results suggest that LEC1 and LEC1-like genes act as key regulators to coordinate theexpression of fatty acid biosynthetic genes, thereby representing a promising target forgenetic improvement of oil-production plants.
LEAFY COTYLEDON1 is a key regulator of fatty acid biosynthesis in Arabidopsis.
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View SamplesDeep sequencing of RNA isolated from ALT survivors in N2 genetic backgrounds (CS, NS). RNA-seq data was compared to the parental strain N2 trt-1(ok410). Total RNA was extracted from synchronized L4 stage worms.
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Sex, Specimen part, Disease, Cell line
View SamplesSenescence has tremendous impact on yield and nutritional quality of agricultural produce. However, scant information is available on genetic architecture of senescence in maize (Zea mays L.) despite the importance of stay-green, a delayed senescence phenotype, in this major cereal crop. We combined different approaches including co-expression networks derived from time-course transcriptome analysis of senescence and stay-green to identify unique candidate genes.
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Specimen part
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