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Series GSE26350 Query DataSets for GSE26350
Status Public on Dec 29, 2010
Title Signaling to Transcription Networks in the Neuronal Retrograde Injury Response
Organism Rattus norvegicus
Experiment type Expression profiling by array
Summary Retrograde signaling from axon to soma activates intrinsic regeneration mechanisms in lesioned peripheral sensory neurons; however, the links between axonal injury signaling and the cell body response are not well understood. Here, we used phosphoproteomics and microarrays to implicate ~900 phosphoproteins in retrograde injury signaling in rat sciatic nerve axons in vivo and ~4500 transcripts in the in vivo response to injury in the dorsal root ganglia. Computational analyses of these data sets identified ~400 redundant axonal signaling networks connected to 39 transcription factors implicated in the sensory neuron response to axonal injury. Experimental perturbation of individual overrepresented signaling hub proteins, including Abl, AKT, p38, and protein kinase C, affected neurite outgrowth in sensory neurons. Paradoxically, however, combined perturbation of Abl together with other hub proteins had a reduced effect relative to perturbation of individual proteins. Our data indicate that nerve injury responses are controlled by multiple regulatory components, and suggest that network redundancies provide robustness to the injury response
Overall design Microarrays were run on mRNA extracted from adult rat L4 and L5 DRGs cells after 1,3,8,12,16,18,24, and 28 hours after a sciatic nerve (proximal and distal) lesion.
Contributor(s) Michaelevski I, Segal-Ruder Y, Rozenbaum M, Medzihradszky KF, Shalem O, Coppola G, Horn-Saban S, Ben-Yaakov K, Dagan SY, Rishal I, Geschwind DH, Pilpel Y, Burlingame AL, Fainzilber M
Citation(s) 20628157, 22246183
Submission date Dec 29, 2010
Last update date Aug 27, 2019
Contact name Giovanni Coppola
Phone 310-794-4172
Organization name UCLA
Department Psychiatry and Neurology
Lab Neurogenetics
Street address 1524 Gonda, 695 Charles Young Drive South
City Los Angeles
State/province CA
ZIP/Postal code 90095
Country USA
Platforms (1)
GPL1355 [Rat230_2] Affymetrix Rat Genome 230 2.0 Array
Samples (72)
GSM647078 Dis.1.a
GSM647079 Dis.1.b
GSM647080 Dis.1.c
BioProject PRJNA136731

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Supplementary file Size Download File type/resource
GSE26350_RAW.tar 197.4 Mb (http)(custom) TAR (of CEL)
Raw data provided as supplementary file
Processed data included within Sample table

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