The Toll/NF-κB pathway in cuttlefish symbiotic accessory nidamental gland.

Dev Comp Immunol

Université de Caen Basse-Normandie, F-14032 Caen, France; UMR 7208 BOREA CNRS INEE, F-14032 Caen, France. Electronic address:

Published: November 2015

AI Article Synopsis

  • The female genital apparatus of decapod cephalopods includes a specialized gland known as the accessory nidamental gland (ANG), which hosts bacteria.
  • Researchers have discovered the presence of the NF-κB immune pathway in the ANG of the common cuttlefish, Sepia officinalis, indicating a link between bacterial presence and immune response.
  • The study identifies crucial components of the immune signaling system, suggesting a critical role of bacterial symbiosis in the innate immunity of S. officinalis.

Article Abstract

The female genital apparatus of decapod cephalopods contains a symbiotic accessory nidamental gland (ANG) that harbors bacterial symbionts. Although the ANG bacterial consortium is now well described, the impact of symbiosis on Sepia officinalis innate immunity pathways remains unknown. In silico analysis of the de novo transcriptome of ANG highlighted for the first time the existence of the NF-κB pathway in S. officinalis. Several signaling components were identified, i.e. five Toll-like receptors, eight signaling cascade features, and the immune response target gene iNOS, previously described as being involved in the initiation of bacterial symbiosis in a cephalopod gland. This work provides a first key for studying bacterial symbiosis and its impact on innate immunity in S. officinalis ANG.

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http://dx.doi.org/10.1016/j.dci.2015.06.016DOI Listing

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