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Distribution of oxytocin-like and vasopressin-like immunoreactivities within the central nervous system of the cuttlefish, Sepia officinalis

Abstract : We have investigated the distribution of oxytocin/vasopressin (OT/VP) superfamily peptides in the central nervous system (CNS) of the cuttlefish, Sepia officinalis, by using antibodies raised against mammalian OT and VP. Several populations of OT-like and VP-like immunoreactive cell bodies and fibers were widely distributed in cerebral structures involved in learning processes (vertical lobe complex, optic lobes), behavioral communication (peduncle, lateral basal and chromatophore lobes), feeding behavior (inferior frontal, brachial and buccal lobes), sexual activity (dorsal basal, subpedunculate, olfactory lobes), and metabolism (visceral lobes). The two most remarkable findings of this study were the occurrence of OT-like immunoreactivity in many amacrine cells of the vertical lobe and the dense accumulation of VP-like immunoreactive cell bodies in the subpedunculate 1 lobe. No double-immunolabeled cell bodies or fibers were found in any lobes of the CNS, indicating, for the first time in a decapod cephalopod mollusc, the existence of distinct oxytocinergic-like and vasopressinergic-like systems. The widespread distribution of the immunoreactive neurons suggests that these OT-like and VP-like peptides act as neurotransmitters or neuromodulators.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-01960656
Contributor : Jérôme Leprince <>
Submitted on : Wednesday, December 19, 2018 - 3:04:38 PM
Last modification on : Tuesday, April 7, 2020 - 3:36:04 PM

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Isabelle Bardou, Eric Maubert, Jérôme Leprince, Raymond Chichery, Claude Cocquerelle, et al.. Distribution of oxytocin-like and vasopressin-like immunoreactivities within the central nervous system of the cuttlefish, Sepia officinalis. Cell and Tissue Research, Springer Verlag, 2009, 336 (2), pp.249-266. ⟨10.1007/s00441-009-0763-4⟩. ⟨hal-01960656⟩

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