Abstract：
:The microRNAs are small RNAs that regulate gene expression at the post-transcriptional level and can be involved in the onset of neurodegenerative diseases and cancer. They are emerging as possible targets for antisense-based therapy, even though the in vivo stability of miRNA analogues is still questioned. We tested the ability of peptide nucleic acids, a novel class of nucleic acid mimics, to downregulate miR-9 in vivo in an invertebrate model organism, the ascidian Ciona intestinalis, by microinjection of antisense molecules in the eggs. It is known that miR-9 is a well-conserved microRNA in bilaterians and we found that it is expressed in epidermal sensory neurons of the tail in the larva of C. intestinalis. Larvae developed from injected eggs showed a reduced differentiation of tail neurons, confirming the possibility to use peptide nucleic acid PNA to downregulate miRNA in a whole organism. By identifying putative targets of miR-9, we discuss the role of this miRNA in the development of the peripheral nervous system of ascidians.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Mercurio S,Cauteruccio S,Manenti R,Candiani S,Scarì G,Licandro E,Pennati Rdoi
10.3390/ijms21062001subject
Has Abstractpub_date
2020-03-15 00:00:00issue
6issn
1422-0067pii
ijms21062001journal_volume
21pub_type
杂志文章abstract：:Microtubules are the main components of mitotic spindles, and are the pillars of the cellular cytoskeleton. They perform most of their cellular functions by virtue of their unique dynamic instability processes which alternate between polymerization and depolymerization phases. This in turn is driven by a precise balan...
journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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doi：10.3390/ijms21218095
更新日期：2020-10-30 00:00:00
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journal_title：International journal of molecular sciences
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更新日期：2019-01-11 00:00:00
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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