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Assembly of a new growth cone after axotomy: the precursor to axon regeneration

Journal

NATURE REVIEWS NEUROSCIENCE
Volume 13, Issue 3, Pages 183-193

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/nrn3176

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Funding

  1. UK Academic Study Group
  2. Institute of Advanced Studies of the Hebrew University of Jerusalem, Israel
  3. Israel Science Foundation
  4. Israel Ministry of Health
  5. United States-Israel Binational Science Foundation
  6. European Commission
  7. Charles E. Smith Family and Professor Joel Elkes Laboratory for Collaborative Research in Psychobiology
  8. Deutsches Zentrum fur Neurodegenerative Erkrankungen
  9. Deutsche Forschungsgemeinschaft
  10. International Foundation for Research in Paraplegia
  11. Human Frontier Science Program
  12. UK Medical Research Council
  13. Engineering and Physical Sciences Research Council
  14. European Union
  15. Plasticise and Angioscaff
  16. Henry Smith Charity
  17. Christopher and Dana Reeve Foundation
  18. UK National Institute of Health Research Cambridge Biomedical Research Centre
  19. MRC [G1000864] Funding Source: UKRI
  20. Medical Research Council [G1000864] Funding Source: researchfish

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The assembly of a new growth cone is a prerequisite for axon regeneration after injury. Creation of a new growth cone involves multiple processes, including calcium signalling, restructuring of the cytoskeleton, transport of materials, local translation of messenger RNAs and the insertion of new membrane and cell surface molecules. In axons that have an intrinsic ability to regenerate, these processes are executed in a timely fashion. However, in axons that lack regenerative capacity, such as those of the mammalian CNS, several of the steps that are required for regeneration fail, and these axons do not begin the growth process. Identification of the points of failure can suggest targets for promoting regeneration.

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