To clarify the downstream signal pathway of EML4-ALK in NSCLC, we performed Affymetrix GeneChip analysis using ALK inhibitor CH5424802-treated NCI-H2228 xenograft tumors, and comprehensively characterized the gene expression regulated by inhibition of activated ALK.
CH5424802, a selective ALK inhibitor capable of blocking the resistant gatekeeper mutant.
Specimen part
View SamplesThe activation signaling of transcription factor nuclear factor-kB (NF-kB) plays central role for immune system. One of key kinase mediating this pathway is TAK1 in adaptive and innate immunity.
Positive feedback within a kinase signaling complex functions as a switch mechanism for NF-κB activation.
Sex, Specimen part
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Overexpression of a type-A response regulator alters rice morphology and cytokinin metabolism.
No sample metadata fields
View SamplesCytokinins (CKs) are a class of plant hormones that regulate many aspects of growth and development, including cell division, apical dominance, leaf senescence, nutrient signaling, and shoot differentiation. In the past decade, substantial progress has been made in understanding CK biosynthesis, metabolism and signal transduction. Much of this knowledge is based on research in Arabidopsis, a dicotyledonous model plant. Although cytokinin plays an important role for growth and development in the Gramineae, our knowledge of cytokinin responsive genes in monocotyledonous species is very limited compared to Arabidopsis. The search for genes whose expression is modified by CK has yielded a number of valuable tools that have been used to understand CK signaling and the complex developmental processes under control of this hormone. We tried to identify rice genes regulated by CK using an Affymetrix rice genome array.
Overexpression of a type-A response regulator alters rice morphology and cytokinin metabolism.
No sample metadata fields
View SamplesMediator complex has been known as pivotal regulator of RNA polymerase II. Mediator complex has two CDK subunits in vertebrates, named CDK8 and CDK19. To elucidate functional difference between CDK8 and CDK19 in human cell, we employ siRNA mediate knockdown assay using HeLa S3 cell line. According to this assay these CDKs possess highly redundancy in HeLa S3 cell transcription regulation mechanism but in several genes, each CDK shows gene specific regulatory function.
Identification of target genes for the CDK subunits of the Mediator complex.
Cell line
View SamplesCytokinins (CKs) are a class of plant hormones that regulate many aspects of growth and development, including cell division, apical dominance, leaf senescence, nutrient signaling, and shoot differentiation. In the past decade, substantial progress has been made in understanding CK biosynthesis, metabolism and signal transduction. Much of this knowledge is based on research in Arabidopsis, a dicotyledonous model plant. The current model of the CK signaling pathway is a multi-step His-Asp phosphorelay system. Some of the cytokinin-inducible response regulators are thought to act as negative regulators of CK signaling. We tried to identify rice genes regulated by CK-inducible response regulator using an Affymetrix rice genome array and transgenic rice that over-express OsRR6.
Overexpression of a type-A response regulator alters rice morphology and cytokinin metabolism.
No sample metadata fields
View SamplesDrosophila midline(mid), encodes a T-box transcription factor that is required for cell fate specification and tissue morphogenesis during a series of developmental processes. However, little is known about the target of Mid.
The T-box transcription factor Midline regulates wing development by repressing wingless and hedgehog in Drosophila.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Malat1 is not an essential component of nuclear speckles in mice.
Age, Specimen part
View SamplesThe objective of this study is to search for calcium signal-dependent expression changes.
Calcium-dependent N-cadherin up-regulation mediates reactive astrogliosis and neuroprotection after brain injury.
Specimen part
View SamplesMalat1 is an abundant long noncoding RNA that localizes to nuclear bodies known as nuclear speckles, which contain a distinct set of pre-mRNA processing factors. Previous in vitro studies have demonstrated that Malat1 interacts with pre-mRNA splicing factors, including the serine- and arginine-rich (SR) family of proteins, and regulates a variety of biological processes, including cancer cell migration, synapse formation, cell cycle progression, and responses to serum stimulation. To address the physiological function of Malat1 in a living organism, we generated Malat1-KO (KO) mice using homologous recombination. Unexpectedly, the Malat1-KO mice were viable and fertile, showing no apparent phenotypes. Nuclear speckle markers were also correctly localized in cells that lacked Malat1. However, the cellular levels of another long noncoding RNA, Neat1, which is an architectural component of nuclear bodies known as paraspeckles, were downregulated in a particular set of tissues and cells lacking Malat1.
Malat1 is not an essential component of nuclear speckles in mice.
Specimen part
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