Invertebrate Neuroscience

, Volume 2, Issue 1, pp 41–49 | Cite as

Aplysia hemolymph promotes neurite outgrowth and synaptogenesis of identifiedHelix neurons in cell culture

  • M. Ghirardi
  • A. Casadio
  • L. Santarelli
  • P. G. Montarolo
Original Articles

Abstract

Hemolymph of adultAplysia californica significantly affects neurite outgrowth of identified neurons of the land snailHelix pomatia. The metacerebral giant cell (MGC) and the motoneuron C3 from the cerebral ganglion and the neuron B2 from the buccal ganglion ofH. pomatia were isolated by enzymatic and mechanical dissociation and plated onto poly-l-lysine-coated dishes either containing culture medium conditioned byHelix ganglia, or pre-treated withAplysia hemolymph. To determine the extent of neuronal growth we measured the neurite elongation and the neuritic field of cultured neurons at different time points.Aplysia hemolymph enhances the extent and rate of linear outgrowth and the branching domain ofHelix neurons. With the hemolymph treatment the MGC neuron more consistently forms specific chemical synapses with its follower cell B2, and these connections are more effective than those established in the presence of the conditioned medium.

Key words

cell culture molluscan neuron hemolymph synaptogenesis neuronal outgrowth H. pomatia 

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Copyright information

© Sheffield Academic Press 1996

Authors and Affiliations

  • M. Ghirardi
    • 1
  • A. Casadio
    • 1
  • L. Santarelli
    • 1
  • P. G. Montarolo
    • 1
  1. 1.Dipartimento di NeuroscienzeUniversità di TorinoTorinoItaly

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