• We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Logo of rnaThe RNA SocietyeTOC AlertsSubscriptionsJournal HomeCSHL PressRNA
RNA. Jan 2011; 17(1): 85–98.
PMCID: PMC3004069

Transcriptome analysis of embryonic and adult sensory axons reveals changes in mRNA repertoire localization

Abstract

mRNAs are transported, localized, and translated in axons of sensory neurons. However, little is known about the full repertoire of transcripts present in embryonic and adult sensory axons and how this pool of mRNAs dynamically changes during development. Here, we used a compartmentalized chamber to isolate mRNA from pure embryonic and adult sensory axons devoid of non-neuronal or cell body contamination. Genome-wide microarray analysis reveals that a previously unappreciated number of transcripts are localized in sensory axons and that this repertoire changes during development toward adulthood. Embryonic axons are enriched in transcripts encoding cytoskeletal-related proteins with a role in axonal outgrowth. Surprisingly, adult axons are enriched in mRNAs encoding immune molecules with a role in nociception. Additionally, we show Tubulin-beta3 (Tubb3) mRNA is present only in embryonic axons, with Tubb3 locally synthesized in axons of embryonic, but not adult neurons where it is transported, thus validating our experimental approach. In summary, we provide the first complete catalog of embryonic and adult sensory axonal mRNAs. In addition we show that this pool of axonal mRNAs dynamically changes during development. These data provide an important resource for studies on the role of local protein synthesis in axon regeneration and nociception during neuronal development.

Keywords: axon regeneration, local protein synthesis, microarray, dorsal root ganglion neurons, pain, development, mRNA

Articles from RNA are provided here courtesy of The RNA Society
PubReader format: click here to try

Formats:

Related citations in PubMed

See reviews...See all...

Cited by other articles in PMC

See all...

Links

  • GEO DataSets
    GEO DataSets
    GEO DataSet links
  • MedGen
    MedGen
    Related information in MedGen
  • PubMed
    PubMed
    PubMed citations for these articles
  • Substance
    Substance
    PubChem Substance links

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...