Unknown,Transcriptomics,Genomics,Proteomics

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MicroRNA profiling in the zoonotic parasite Echinococcus canadensis using a high-throughput approach

ABSTRACT: microRNAs (miRNAs), a class of small non-coding RNAs, are key regulators of gene expression at post-transcriptional level and play essential roles in fundamental biological processes such as development and metabolism. Here, we perform a comprehensive analysis of miRNAs in the zoonotic parasite E. canadensis G7, one of the causative agents of the neglected disease cystic echinococcosis. Small RNA libraries from protoscoleces and cyst walls of E. canadensis G7 and protoscoleces of E. granulosus sensu stricto G1 were sequenced using Illumina technology. As a result, we found transcriptional evidence of 37 miRNAs thus expanding the miRNA repertoire of E. canadensis G7. Differential expression analysis showed significant regulated miRNAs between life cycle stages of E. canadensis G7. We confirmed the remarkable loss of conserved miRNA families in E. canadensis, reflecting their low morphological complexity and high adaptation to parasitism. This study will provide valuable information for better understanding the complex biology of this parasite and could help to find new potential targets for therapy and/or diagnosis. Small RNA libraries from protoscoleces and cyst walls of E. canadensis G7 and protoscoleces of E. granulosus sensu stricto G1 were sequenced using Illumina technology. For each sample type, two libraries were constructed from two independent samples in order to have biological replicates.

ORGANISM(S): Echinococcus granulosus

SUBMITTER: Natalia Macchiaroli

PROVIDER: E-GEOD-64705 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

microRNA profiling in the zoonotic parasite Echinococcus canadensis using a high-throughput approach.

Macchiaroli Natalia N Cucher Marcela M Zarowiecki Magdalena M Maldonado Lucas L Kamenetzky Laura L Rosenzvit Mara Cecilia MC

Parasites & vectors 20150206

<h4>Background</h4>microRNAs (miRNAs), a class of small non-coding RNAs, are key regulators of gene expression at post-transcriptional level and play essential roles in fundamental biological processes such as development and metabolism. The particular developmental and metabolic characteristics of cestode parasites highlight the importance of studying miRNA gene regulation in these organisms. Here, we perform a comprehensive analysis of miRNAs in the parasitic cestode Echinococcus canadensis G7 ...[more]

PMID: 25656283

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Project description:Cystic echinococcosis (CE) is a chronic zoonosis caused by infection with the larval stage(protoscoleces, PSCs) of the cestode Echinococcus granulosus. A unique characteristic of the PSC is an ability to develop bidirectionally into an adult worm in the definitive host or into a secondary hydatid cyst in the intermediate host. Furmore, the cestode has a complex life-cycle involving different development stages but the mechanisms underpinning this development. Many studies have demonstrated that some matrix proteins undergo posttranslational modifications, including phosphorylation and glycosylation, which have important regulatory effects on the functional properties of the proteins. Systematic analysis of the proteome, the phosphorylated modified proteome and the glycosylated modified proteome of the PSCs and adult worms was performed using a proteomics strategy. A total of 6407 phosphorylation sites and 1757 proteins were quantifiable. Of those, 2032 phosphorylation sites and 770 proteins were up-regulated, and 2993 phosphorylation sites and 1217 proteins were down-regulated in the PSCs compared with the adult worms. A total of 612 N-glycosylation sites within 392 N-glycoproteins were identified. Of which, 355 N-glycosylation sites and 212 N-glycoproteins were quantifiable. Of those, 90 N-glycosylation sites and 64 N-glycoproteins were up-regulated, and 171 N-glycosylation sites and 126 N-glycoproteins were down-regulated 6407 in the PSCs compared with the adult worms. GO enrichment analysis indicated that the differently expressed phosphoproteins were mainly enriched in regulation of oxidoreduction coenzyme metabolic process, myelin sheath and RNA helicase activity, while the differently expressed N-glycoproteins were enriched in the cellular response to unfolded protein, endoplasmic reticulum lumen and nucleic acid binding. KEGG enrichment analysis indicated that the differently expressed phosphoproteins were mainly enriched in RNA transport, Hypertrophic cardiomyopathy (HCM), Glycolysis/Gluconeogenesis, HIF-1 signaling pathway and Pyruvate metabolism. while the differently expressed N-glycoproteins were enriched in PI3K-Akt signaling pathway, ECM-receptor interaction and Protein processing in endoplasmic reticulum.

Dataset Information

MicroRNA profiling in the zoonotic parasite Echinococcus canadensis using a high-throughput approach

Publications

microRNA profiling in the zoonotic parasite Echinococcus canadensis using a high-throughput approach.

Similar Datasets

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