Dichelostemma ida-maia
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA198046 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR830633.fastq.gz | Fastqsanger.gz |
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Project description:Dichelostemma ida-maia Genome sequencing
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Project description:Hemileuca maia species complex, including H. artemis, H. lucina, H. maia, H. nevadensis, H. peigleri, and H. slosseri Raw sequence reads
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Project description:Background Gastric Helicobacter pylori colonization leads to iron deficiency anemia (IDA), especially in children and adolescents. However the pathogenesis is poorly understood. Objective We sought to identify specific H. pylori genes involved in IDA development, by comparing bacterial genome-wide expression profiling in patients affected or not. Methods H. pylori were isolated from four children with IDA and four from matched controls without IDA. Based on these isolates, cDNA microarrays under iron-replete or depleted conditions were systematically performed to compare gene expression profiles at the whole genome level. Real-time reverse-transcription (RT-) PCR and protein assays were performed for further assessing the profile differentiation of the identified H. pylori IDA-associated genes. Results We identified 29 and 11 genes with significantly higher or lower expression in the IDA isolates compared to non-IDA isolates, respectively. Especially notable were higher expression of sabA gene encoding sialic acid-binding adhesin in the IDA isolates, which was confirmed by real-time RT-PCR study. Moreover, iron-depletion in vitro led to up-regulation of fecA1 and frpB1 genes and down-regulation of pfr, as predicted. Known iron-regulated genes such as fur, pfr, fecA, and feoB did not significantly differ between both groups. The IDA isolates had significantly higher expression of vacuolating cytotoxin gene vacA than non-IDA isolates, consistent with the results of VacA protein assays. There were no significant differences in bacterial growth value between IDA and non-IDA isolates. Conclusions It is likely that H. pylori carrying high expression of sabA causes IDA, especially in children and adolescents who have increased daily iron demand. In addition, it is possible that several host-interactive genes, including vacA, may play a synergistic role for sabA in IDA development.
2017-07-25 | GSE101807 | GEO
Project description:Forced expression of ASCL1, Nurr1, Lmx1a, miRNA-124 and p53shRNA (ANLmp) in fibroblasts reprograms fibroblasts to induced dopaminergic neurons (iDA). While human lung fibroblasts can be converted rapidly and efficiently, iDA of dermal fibroblast is very unefficient and incompleted. To address this issue, we performed time series RNAseq on both lung and dermal fibroblasts during the first four days of ANLmp induced neuron convertion. Bioinformatics analysis revealed the stable fibroblast gene regulatory network (GRN) was a potential repressive factor for iDA in human dermal fibroblasts.
2019-06-17 | GSE125692 | GEO
Project description:Forced expression of ASCL1, Nurr1, Lmx1a, miRNA-124 and p53shRNA (ANLmp) in fibroblasts reprograms fibroblasts to induced dopaminergic neurons (iDA). While human lung fibroblasts can be converted rapidly and efficiently, iDA of dermal fibroblast is very unefficient and incompleted. To address this issue, we performed time series RNAseq on both lung and dermal fibroblasts during the first several days of ANLmp induced neuron convertion. Bioinformatics analysis revealed the stable fibroblast gene regulatory network (GRN) was a potential repressive factor for iDA in human dermal fibroblasts.
2019-06-17 | GSE129358 | GEO
Project description:Since iron deficiency anemia (IDA) is one of the most common diseases in worldwide, it is an essential issue to prevent and to treat the IDA in public healthcare system. However, the precise adaptive responses and their mechanisms of the hematopoietic system induced by iron deficient state are not fully understood. In this study, low iron diet conditions which induce sever iron deficiency anemia in mice were established. Transcriptome analyses in erythroblasts under normal or iron deficient states were performed to describe the pathological details of IDA. Under iron deficient state, extensive gene expression changes and mitophagy disorder were induced during the terminal maturation of erythroblasts. These findings provide a new insight into pathophysiology and molecular biology of IDA and the function of iron as a coordinator of gene expression networks in erythrocyte maturation.
2016-12-14 | GSE77694 | GEO
Project description:This study identified differentially expressed miRNAs exclusively in invasive ductal adenocarcinoma. The epithelial-mesenchymal transition (EMT) is a critical step for pancreatic cancer cells as an entry of metastatic disease. Wide variety of cytokines and signaling pathways are involved in this complex process while the entire picture is still cryptic. Recently, miRNA was found to regulate cellular function including EMT by targeting multiple mRNAs. We performed comprehensive analysis of miRNA expression profiles in invasive ductal adenocarcinoma (IDA), intraductal papillary mucinous adenoma (IPMA), intraductal papillary mucinous carcinoma (IPMC) and human pancreatic cancer cell line to elucidate essential miRNAs which regulate invasive growth of pancreatic cancer cells. Along with higher expression of miR-21 which has been shown to be highly expressed in IDA, reduced expression of miR-126 in IDA and pancreatic cancer cell line was detected. Re-expression of miR-126 in pancreatic cancer cells resulted in reduced cellular migration, invasion and induction of epithelial marker E-cadherin. We demonstrated for the first time that the miR-126 plays essential role in the inhibition of invasive growth of pancreatic cancer cells.
2011-05-30 | GSE29542 | GEO