To examine the transcriptome alteration caused by ZIC5 knockdown in melanoma, we performed gene expression microarray analysis.
ZIC5 Drives Melanoma Aggressiveness by PDGFD-Mediated Activation of FAK and STAT3.
Cell line
View SamplesA long form (tRNase ZL) of tRNA 3' processing endoribonuclease (tRNase Z, or 3' tRNase) can cleave any target RNA at any desired site under the direction of artificial small guide RNA (sgRNA). We discovered in human kidney 293 cell extracts various new small noncoding RNAs (ncRNAs) including 5'-half-tRNAs and 28S rRNA fragments, co-immunoprecipitated with tRNase ZL, and demonstrated that two of these ncRNAs work as sgRNAs for tRNase ZL in vivo as well as in vitro. In order to find genuine mRNA targets of tRNase ZL guided by ncRNAs, we performed DNA microarray analysis for mRNAs from the 293 cells transfected with the tRNase ZL expression plasmid, and found that PPM1F and DYNC1H1 mRNAs are its genuine targets.
Modulation of gene expression by human cytosolic tRNase Z(L) through 5'-half-tRNA.
No sample metadata fields
View SamplesVEGF and VEGFB Play Balancing Roles in Adipose Differentiation, Gene Expression and Function
No associated publication
Sex, Specimen part, Cell line
View Samplesgene expression study on brain and lung under Dip2a regulation to better understand the role of Dip2a gene during mice brain and lung development.
Large genomic fragment deletions and insertions in mouse using CRISPR/Cas9.
Sex, Specimen part, Cell line
View SamplesPrenatal exposure to valproic acid, an established anti-epileptic drug, has been reported to impair postnatal cognitive function of children from epileptic mothers. Nevertheless, its pathology and proper treatment to minimize the effects remain unknown. In mice, we found that the postnatal cognitive function impairment was mainly caused by a reduction of adult neurogenesis and abnormal neuronal features in the hippocampus, which could be ameliorated by voluntary running.
Reduced Adult Hippocampal Neurogenesis and Cognitive Impairments following Prenatal Treatment of the Antiepileptic Drug Valproic Acid.
Sex, Specimen part, Treatment
View SamplesEstrogen clearly prevents osteoporotic bone loss by attenuating bone resorption. The molecular basis of how this is accomplished, however, remains elusive. Here we report a critical role of osteoclastic ERa in mediating estrogen action on bone in females. We selectively ablated ERa in differentiated osteoclasts (ERa dOc/dOc). ERa dOc/dOc females, but not males, exhibited clear trabecular bone loss, similar to the osteoporotic bone phenotype in post-menopausal women. Recovery of bone loss by estrogen treatment of the ovariectomized ERa dOc/dOc females was ineffective in the trabecular areas of the long bones and lumbar vertebral bodies. Osteoclastic apoptosis, induced by estrogen, occurred simultaneously with up-regulation of Fas ligand (FasL) expression in intact trabecular bones of ERa +/+mice, but not in ERa dOc/dOc mice. ERa was also required for similar effects of estrogen and tamoxifen in cultured osteoclasts. These findings suggest that the osteoprotective actions of estrogen and SERMS are mediated at least in part through osteoclastic ERa in trabecular bone; and the life span of mature osteoclasts is regulated through activation of the Fas/FasL system.
Estrogen prevents bone loss via estrogen receptor alpha and induction of Fas ligand in osteoclasts.
Sex, Specimen part
View SamplesBisphenol A (BPA), an endocrine-disrupting chemical (EDC), is a well-known, ubiquitous estrogenic chemical. To investigate the effects of fetal exposure to low-dose BPA on the development of the prostate, we first examined the alterations of in situ sex steroid hormonal environment in the mouse urogenital sinus (UGS).
Endocrine disrupter bisphenol A increases in situ estrogen production in the mouse urogenital sinus.
Specimen part
View SamplesRett syndrome (RTT) is a devastating neurodevelopmental disorder that occurs once in every 10,000-15,000 live female births. Despite intensive research, no effective cure is yet available. Valproic acid (VPA) has been used widely to treat mood disorder, epilepsy, and a growing number of other disorders. In limited clinical studies, VPA has also been used to control seizure in RTT patients with promising albeit somewhat unclear efficacy. In this study we tested the effect of VPA on the neurological symptoms of RTT and discovered that short-term VPA treatment during the symptomatic period could reduce neurological symptoms in RTT mice. We found that VPA restores the expression of a subset of genes in RTT mouse brains, and these genes clustered in neurological disease and developmental disorder networks. Our data suggest that VPA could be used as a drug to alleviate RTT symptoms.
VPA alleviates neurological deficits and restores gene expression in a mouse model of Rett syndrome.
Specimen part
View SamplesTo understand the role of prostaglandin (PG) receptor EP2 (Ptger2) signaling in ovulation and fertilization, we investigated time-dependent expression profiles in wild-type (WT) and Ptger2-/- cumuli before and after ovulation by using microarrays.
Expression profiling of cumulus cells reveals functional changes during ovulation and central roles of prostaglandin EP2 receptor in cAMP signaling.
Sex, Specimen part
View SamplesRationale Electroconvulsive seizure (ECS) therapy is a nonchemical treatment for depression. Since ECS up-regulates expression of c-Fos in the paraventricular nucleus of hypothalamus (PVN), the function of which is frequently influenced in depression, we hypothesized that ECS modulates functions of the PVN and contributes to its antidepressant effects. Objectives To identify gene expression changes in the mouse PVN by ECS treatment Material and methods First, we established a method to amplify nucleotides from small quantities of RNA. Mice received one shock of ECS and their brains were collected at 2 or 6 h after shock. The PVN was microdissected from dehydrated brain sections, its total RNA was extracted and microarray analysis was applied. Results At 2 h after ECS, 2.6% (589 genes) of the probes showed more than 2-fold decrease, and 0.9% (205 genes) showed more than 2-fold increase. To confirm the expression changes, genes showing differential expression with a wide range in the microarray were analyzed by qPCR. Among the genes with more than 2-fold change by ECS, down-regulated 94 genes and up-regulated 24 genes have been reported the association with anxiety, bipolar disorder or mood disorder by the Ingenuity knowledge database. The groups of down-regulated genes, which are suggested to modulate the function of the PVN or associate to psychiatric disorders, include neuropeptides (Cck), kinases (Prkcb, Prkcc, Camk2a), transcription factors (Bcl6, Tbr1), transporters (Aqp4) and others (Fmr1). Conclusion The present results indicate that ECS treatment can modulate the functions of PVN via a series of gene expression changes, and may contribute to its antidepressant effects at least in part.
Electroconvulsive seizure-induced changes in gene expression in the mouse hypothalamic paraventricular nucleus.
Specimen part, Treatment, Time
View Samples