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Gene expression of abnormal uric acid synthesis animal model of silk worm Bombyx mori.

ABSTRACT: Uric acid (UA) is the final product of purine metabolism and plays an important role as a physiological antioxidant. In recent years, several different groups have reported a correlation between decreased UA in Parkinson’s disease (PD) and clinical progression and stage of PD. However, little is known about the molecular mechanisms of decreased UA under oxidative stress. We used our systematic functional annotation pipeline for silkworm genes to identify a novel UA metabolic pathway regulator under oxidative stress in a UA metabolism mutant silkworm Bombyx mori model.

ORGANISM(S): Bombyx mori

PROVIDER: GSE37735 | GEO | 2013/07/24

SECONDARY ACCESSION(S): PRJNA163103

REPOSITORIES: GEO

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Gene expression of abnormal uric acid synthesis animal model of silk worm Bombyx mori.

Project description:Uric acid (UA) is the final product of purine metabolism and plays an important role as a physiological antioxidant. In recent years, several different groups have reported a correlation between decreased UA in Parkinson’s disease (PD) and clinical progression and stage of PD. However, little is known about the molecular mechanisms of decreased UA under oxidative stress. We used our systematic functional annotation pipeline for silkworm genes to identify a novel UA metabolic pathway regulator under oxidative stress in a UA metabolism mutant silkworm Bombyx mori model. Gene expression was measured in 3day of fifth instar larvae of abnormal uric acid synthesis Bombyx mori mutant of op.

2013-07-24 | E-GEOD-37735 | biostudies-arrayexpress

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A single-cell transcriptomic atlas characterizes the silk-producing organ in the silkworm

Project description:The silk gland (SG) of the domesticated silkworm Bombyx mori, an economically important insect that has been used for silk production for over 5000 years, is a remarkable organ that produces vast amounts of silk with exceptional properties . Little is known about which SG cells execute silk protein synthesis and its precise spatiotemporal control. Here, we used single-cell RNA-seq to build a comprehensive cell atlas of the B. mori SG, consisting of 14,972 high-quality cells representing 10 distinct cell types, in three early developmental stages. We annotated all 10 cell types and determined their distributions in each region of the SG, decoded their developmental trajectory and gene-switch status, and discovered marker genes involved in the regulation of SG development and silk protein synthesis. Our study reveals the high heterogeneity of B. mori SG cells and their gene expression dynamics for the first time, affording a deeper understanding of silk-producing organs at the single-cell level .

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Project description:Molecular genetic studies of Bombyx mori have led to profound advances in understanding the regulation of development. Bombyx mori brain, as a main endocrine organ, plays important regulatory roles in various biological processes. The microarray technology will allow the genome-wide analysis of gene expression patterns in silkworm brains. We reported microarray-based gene expression profiles in silkworm brains at four stages including V7, P1, P2 and P3. A total of 4,550 genes were transcribed in at least one selected stage. Of these, clustering algorithms separated the expressed genes into stable expressed genes and variable expressed genes. The results of the gene ontology (GO) and kyoto encyclopedia of genes and genomes (KEGG) analysis of stable expressed genes showed that the ribosomal and oxidative phosphorylation pathways were principal pathways. Secondly, four clusters of genes with significantly different expression patterns were observed in the 1,175 variable expressed genes. Thirdly, thirty-two neuropeptide hormones genes, nine neuropeptide-like precursor genes, and 117 cuticular protein genes were expressed in selected developmental stages. The present study deﬁned major characteristics of the transcriptional profiles in the brains of Bombyx mori at the specific development stages. Our data will provide abundant information that will be useful in future research.

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2013-09-27 | E-GEOD-51247 | biostudies-arrayexpress

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