RRC ID 53381
Author Hisamoto N, Nagamori Y, Shimizu T, Pastuhov SI, Matsumoto K.
Title The C. elegans Discoidin Domain Receptor DDR-2 Modulates the Met-like RTK-JNK Signaling Pathway in Axon Regeneration.
Journal PLoS Genet
Abstract The ability of specific neurons to regenerate their axons after injury is governed by cell-intrinsic regeneration pathways. However, the signaling pathways that orchestrate axon regeneration are not well understood. In Caenorhabditis elegans, initiation of axon regeneration is positively regulated by SVH-2 Met-like growth factor receptor tyrosine kinase (RTK) signaling through the JNK MAPK pathway. Here we show that SVH-4/DDR-2, an RTK containing a discoidin domain that is activated by collagen, and EMB-9 collagen type IV regulate the regeneration of neurons following axon injury. The scaffold protein SHC-1 interacts with both DDR-2 and SVH-2. Furthermore, we demonstrate that overexpression of svh-2 and shc-1 suppresses the delay in axon regeneration observed in ddr-2 mutants, suggesting that DDR-2 functions upstream of SVH-2 and SHC-1. These results suggest that DDR-2 modulates the SVH-2-JNK pathway via SHC-1. We thus identify two different RTK signaling networks that play coordinated roles in the regulation of axonal regeneration.
Volume 12(12)
Pages e1006475
Published 2016-12-1
DOI 10.1371/journal.pgen.1006475
PII PGENETICS-D-16-01050
PMID 27984580
PMC PMC5161311
MeSH Adaptor Proteins, Signal Transducing / genetics* Animals Axons / metabolism Caenorhabditis elegans / genetics Caenorhabditis elegans / growth & development Caenorhabditis elegans Proteins / genetics* Caenorhabditis elegans Proteins / metabolism Discoidin Domain / genetics Discoidin Domain Receptor 2 / genetics* Discoidin Domain Receptor 2 / metabolism JNK Mitogen-Activated Protein Kinases / genetics JNK Mitogen-Activated Protein Kinases / metabolism Nerve Regeneration / genetics* Neurons / metabolism* Receptor Protein-Tyrosine Kinases / genetics* Receptor Protein-Tyrosine Kinases / metabolism Signal Transduction
IF 5.175
Times Cited 5
Resource
C.elegans tm797 tm737