Transcriptome of small regulatory RNAs in the development of the zoonotic parasite Trichinella spiralis

Trichinella spiralis is a parasite with unique features. It is a multicellular organism but with an intracellular parasitization and development stage. T. spiralis is the helminthic pathogen that causes zoonotic trichinellosis and afflicts more than 10 million people worldwide, whereas the parasite&...

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Veröffentlicht in:PloS one 2011-11, Vol.6 (11), p.e26448-e26448
Hauptverfasser: Liu, Xiaolei, Song, Yanxia, Lu, Huijun, Tang, Bin, Piao, Xianyu, Hou, Nan, Peng, Shuai, Jiang, Ning, Yin, Jigang, Liu, Mingyuan, Chen, Qijun
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container_issue 11
container_start_page e26448
container_title PloS one
container_volume 6
creator Liu, Xiaolei
Song, Yanxia
Lu, Huijun
Tang, Bin
Piao, Xianyu
Hou, Nan
Peng, Shuai
Jiang, Ning
Yin, Jigang
Liu, Mingyuan
Chen, Qijun
description Trichinella spiralis is a parasite with unique features. It is a multicellular organism but with an intracellular parasitization and development stage. T. spiralis is the helminthic pathogen that causes zoonotic trichinellosis and afflicts more than 10 million people worldwide, whereas the parasite's biology, especially the developmental regulation is largely unknown. In other organisms, small non-coding RNAs, such as microRNAs (miRNA) and small interfering RNAs (siRNA) execute post-transcriptional regulation by translational repression or mRNA degradation, and a large number of miRNAs have been identified in diverse species. In T. spiralis, the profile of small non-coding RNAs and their function remains poorly understood. Here, the transcriptional profiles of miRNA and siRNA in three developmental stages of T. spiralis in the rat host were investigated, and compared by high-throughput cDNA sequencing technique ("RNA-seq"). 5,443,641 unique sequence tags were obtained. Of these, 21 represented conserved miRNAs related to 13 previously identified metazoan miRNA families and 213 were novel miRNAs so far unique to T. spiralis. Some of these miRNAs exhibited stage-specific expression. Expression of miRNAs was confirmed in three stages of the life cycle by qRT-PCR and northern blot analysis. In addition, endogenous siRNAs (endo-siRNAs) were found mainly derived from natural antisense transcripts (NAT) and transposable elements (TE) in the parasite. We provide evidence for the presence of miRNAs and endo-siRNAs in T. spiralis. The miRNAs accounted for the major proportion of the small regulatory RNA population of T. spiralis, while fewer endogenous siRNAs were found. The finding of stage-specific expression patterns of the miRNAs in different developmental stages of T. spiralis suggests that miRNAs may play important roles in parasite development. Our data provide a basis for further understanding of the molecular regulation and functional evolution of miRNAs in parasitic nematodes.
doi_str_mv 10.1371/journal.pone.0026448
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It is a multicellular organism but with an intracellular parasitization and development stage. T. spiralis is the helminthic pathogen that causes zoonotic trichinellosis and afflicts more than 10 million people worldwide, whereas the parasite's biology, especially the developmental regulation is largely unknown. In other organisms, small non-coding RNAs, such as microRNAs (miRNA) and small interfering RNAs (siRNA) execute post-transcriptional regulation by translational repression or mRNA degradation, and a large number of miRNAs have been identified in diverse species. In T. spiralis, the profile of small non-coding RNAs and their function remains poorly understood. Here, the transcriptional profiles of miRNA and siRNA in three developmental stages of T. spiralis in the rat host were investigated, and compared by high-throughput cDNA sequencing technique ("RNA-seq"). 5,443,641 unique sequence tags were obtained. Of these, 21 represented conserved miRNAs related to 13 previously identified metazoan miRNA families and 213 were novel miRNAs so far unique to T. spiralis. Some of these miRNAs exhibited stage-specific expression. Expression of miRNAs was confirmed in three stages of the life cycle by qRT-PCR and northern blot analysis. In addition, endogenous siRNAs (endo-siRNAs) were found mainly derived from natural antisense transcripts (NAT) and transposable elements (TE) in the parasite. We provide evidence for the presence of miRNAs and endo-siRNAs in T. spiralis. The miRNAs accounted for the major proportion of the small regulatory RNA population of T. spiralis, while fewer endogenous siRNAs were found. The finding of stage-specific expression patterns of the miRNAs in different developmental stages of T. spiralis suggests that miRNAs may play important roles in parasite development. 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It is a multicellular organism but with an intracellular parasitization and development stage. T. spiralis is the helminthic pathogen that causes zoonotic trichinellosis and afflicts more than 10 million people worldwide, whereas the parasite's biology, especially the developmental regulation is largely unknown. In other organisms, small non-coding RNAs, such as microRNAs (miRNA) and small interfering RNAs (siRNA) execute post-transcriptional regulation by translational repression or mRNA degradation, and a large number of miRNAs have been identified in diverse species. In T. spiralis, the profile of small non-coding RNAs and their function remains poorly understood. Here, the transcriptional profiles of miRNA and siRNA in three developmental stages of T. spiralis in the rat host were investigated, and compared by high-throughput cDNA sequencing technique ("RNA-seq"). 5,443,641 unique sequence tags were obtained. Of these, 21 represented conserved miRNAs related to 13 previously identified metazoan miRNA families and 213 were novel miRNAs so far unique to T. spiralis. Some of these miRNAs exhibited stage-specific expression. Expression of miRNAs was confirmed in three stages of the life cycle by qRT-PCR and northern blot analysis. In addition, endogenous siRNAs (endo-siRNAs) were found mainly derived from natural antisense transcripts (NAT) and transposable elements (TE) in the parasite. We provide evidence for the presence of miRNAs and endo-siRNAs in T. spiralis. The miRNAs accounted for the major proportion of the small regulatory RNA population of T. spiralis, while fewer endogenous siRNAs were found. The finding of stage-specific expression patterns of the miRNAs in different developmental stages of T. spiralis suggests that miRNAs may play important roles in parasite development. Our data provide a basis for further understanding of the molecular regulation and functional evolution of miRNAs in parasitic nematodes.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>22096484</pmid><doi>10.1371/journal.pone.0026448</doi><tpages>e26448</tpages><oa>free_for_read</oa></addata></record>
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subjects Analysis
Animals
Antisense RNA
Apoptosis
Base Sequence
Bioinformatics
Biology
Conserved sequence
Deoxyribonucleic acid
Developmental stages
DNA
Education
Gene expression
Gene regulation
Gene sequencing
Genomes
Genomics
Laboratories
Life cycle analysis
Life cycle engineering
Life cycles
Lung cancer
Medicine
MicroRNA
MicroRNAs
MicroRNAs - genetics
miRNA
Mitochondrial DNA
Molecular biology
Molecular Sequence Data
Nematodes
Nucleotide sequence
Parasites
Parasitic diseases
Parasitology
Pathogens
Physics
Post-transcription
Ribonucleic acid
RNA
RNA, Helminth - genetics
RNA, Small Interfering - genetics
Schistosoma mansoni
Sequence Analysis, RNA
siRNA
Transcription (Genetics)
Transposons
Trends
Trichinella spiralis
Trichinella spiralis - genetics
Trichinellosis
Zoonoses
title Transcriptome of small regulatory RNAs in the development of the zoonotic parasite Trichinella spiralis
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-14T13%3A54%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Transcriptome%20of%20small%20regulatory%20RNAs%20in%20the%20development%20of%20the%20zoonotic%20parasite%20Trichinella%20spiralis&rft.jtitle=PloS%20one&rft.au=Liu,%20Xiaolei&rft.date=2011-11-01&rft.volume=6&rft.issue=11&rft.spage=e26448&rft.epage=e26448&rft.pages=e26448-e26448&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0026448&rft_dat=%3Cgale_plos_%3EA476863675%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1310762545&rft_id=info:pmid/22096484&rft_galeid=A476863675&rft_doaj_id=oai_doaj_org_article_6648a0cd66e94b8390dbcc23afd84201&rfr_iscdi=true