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Whole transcriptome profiling reveals the RNA content of motor axons

Please always quote using this URN: urn:nbn:de:bvb:20-opus-126800
  • Most RNAs within polarized cells such as neurons are sorted subcellularly in a coordinated manner. Despite advances in the development of methods for profiling polyadenylated RNAs from small amounts of input RNA, techniques for profiling coding and non-coding RNAs simultaneously are not well established. Here, we optimized a transcriptome profiling method based on double-random priming and applied it to serially diluted total RNA down to 10 pg. Read counts of expressed genes were robustly correlated between replicates, indicating that theMost RNAs within polarized cells such as neurons are sorted subcellularly in a coordinated manner. Despite advances in the development of methods for profiling polyadenylated RNAs from small amounts of input RNA, techniques for profiling coding and non-coding RNAs simultaneously are not well established. Here, we optimized a transcriptome profiling method based on double-random priming and applied it to serially diluted total RNA down to 10 pg. Read counts of expressed genes were robustly correlated between replicates, indicating that the method is both reproducible and scalable. Our transcriptome profiling method detected both coding and long non-coding RNAs sized >300 bases. Compared to total RNAseq using a conventional approach our protocol detected 70% more genes due to reduced capture of ribosomal RNAs. We used our method to analyze the RNA composition of compartmentalized motoneurons. The somatodendritic compartment was enriched for transcripts with post-synaptic functions as well as for certain nuclear non-coding RNAs such as 7SK. In axons, transcripts related to translation were enriched including the cytoplasmic non-coding RNA 7SL. Our profiling method can be applied to a wide range of investigations including perturbations of subcellular transcriptomes in neurodegenerative diseases and investigations of microdissected tissue samples such as anatomically defined fiber tracts.show moreshow less

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Metadaten
Author: Michael Briese, Lena Saal, Silke Appenzeller, Mehri Moradi, Apoorva Baluapuri, Michael Sendtner
URN:urn:nbn:de:bvb:20-opus-126800
Document Type:Journal article
Faculties:Medizinische Fakultät / Institut für Klinische Neurobiologie
Language:English
Parent Title (English):Nucleic Acids Research
Year of Completion:2015
Source:Nucleic Acids Research (2016) 44 (4): e33 doi: 10.1093/nar/gkv1027
DOI:https://doi.org/10.1093/nar/gkv1027
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 611 Menschliche Anatomie, Zytologie, Histologie
Tag:RNA; motor axons
Release Date:2016/03/14
EU-Project number / Contract (GA) number:259867
OpenAIRE:OpenAIRE
Collections:Open-Access-Publikationsfonds / Förderzeitraum 2015
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung