skip to main content
Idioma:

Fusogen-mediated neuron–neuron fusion disrupts neural circuit connectivity and alters animal behavior

Giordano-Santini, Rosina ; Kaulich, Eva ; Galbraith, Kate M. ; Ritchie, Fiona K. ; Wang, Wei ; Li, Zhaoyu ; Hilliard, Massimo A.

Proceedings of the National Academy of Sciences - PNAS, 2020-09, Vol.117 (37), p.23054-23065 [Periódico revisado por pares]

Washington: National Academy of Sciences

Texto completo disponível

Citações Citado por
  • Título:
    Fusogen-mediated neuron–neuron fusion disrupts neural circuit connectivity and alters animal behavior
  • Autor: Giordano-Santini, Rosina ; Kaulich, Eva ; Galbraith, Kate M. ; Ritchie, Fiona K. ; Wang, Wei ; Li, Zhaoyu ; Hilliard, Massimo A.
  • Assuntos: Animal behavior ; Biological Sciences ; Calcium ; Cell fusion ; Chemoreception ; Circuits ; Nervous system ; Neural networks ; Neurological diseases ; Neurons ; Odorants
  • É parte de: Proceedings of the National Academy of Sciences - PNAS, 2020-09, Vol.117 (37), p.23054-23065
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    1K.M.G., F.K.R., and W.W. contributed equally to this work.
    Edited by Yishi Jin, University of California San Diego, La Jolla, CA, and accepted by Editorial Board Member Yuh Nung Jan July 24, 2020 (received for review November 3, 2019)
    Author contributions: R.G.-S., Z.L., and M.A.H. designed research; R.G.-S., E.K., K.M.G., F.K.R., and W.W. performed research; R.G.-S., E.K., K.M.G., F.K.R., W.W., Z.L., and M.A.H. analyzed data; and R.G.-S. and M.A.H. wrote the paper.
  • Descrição: The 100-y-old neuron doctrine from Ramón y Cajal states that neurons are individual cells, rejecting the process of cell–cell fusion in the normal development and function of the nervous system. However, fusogens—specialized molecules essential and sufficient for the fusion of cells—are expressed in the nervous system of different species under conditions of viral infection, stress, or disease. Despite these findings, whether the expression of fusogens in neurons leads to cell–cell fusion, and, if so, whether this affects neuronal fate, function, and animal behavior, has not been explored. Here, using Caenorhabditis elegans chemosensory neurons as a model system, we provide proof-of-principle that aberrant expression of fusogens in neurons results in neuron–neuron fusion and behavioral impairments. We demonstrate that fusion between chemoattractive neurons does not affect the response to odorants, whereas fusion between chemoattractive and chemorepulsive neurons compromises chemosensation. Moreover, we provide evidence that fused neurons are viable and retain their original specific neuronal fate markers. Finally, analysis of calcium transients reveals that fused neurons become electrically coupled, thereby compromising neural circuit connectivity. Thus, we propose that aberrant expression of fusogens in the nervous system disrupts neuronal individuality, which, in turn, leads to a change in neural circuit connectivity and disruption of normal behavior. Our results expose a previously uncharacterized basis of circuit malfunction, and a possible underlying cause of neurological diseases.
  • Editor: Washington: National Academy of Sciences
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.