@article {9276, title = {Comparative Proteome Analysis of Four Stages of Spermatogenesis in the Small-Spotted Catshark (Scyliorhinus canicula)}, journal = {Journal of Proteome Research}, volume = {22}, year = {2023}, month = {Jul-07-2023}, pages = {2477 - 2492}, issn = {1535-3893}, doi = {https://doi.org/10.1021/acs.jproteome.3c00206}, url = {https://pubs.acs.org/doi/10.1021/acs.jproteome.3c00206}, author = {Jeanne, Fabian and Bernay, Beno{\^\i}t and Pascal Sourdaine} } @article {5440, title = {Crustacean cardioactive peptides: Expression, localization, structure, and a possible involvement in regulation of egg-laying in the cuttlefish Sepia officinalis.}, journal = {Gen. Comp. Endocrinol.}, volume = {1}, year = {2018}, pages = {67-79}, abstract = {

The cuttlefish (Sepia officinalis) is a cephalopod mollusk distributed on the western European coast, in the West African Ocean and in the Mediterranean Sea. On the Normandy coast (France), cuttlefish is a target species of professional fishermen, so its reproduction strategy is of particular interest in the context of stock management. Egg-laying, which is coastal, is controlled by several types of regulators among which neuropeptides. The cuttlefish neuropeptidome was recently identified by\ Zatylny-Gaudin\ et al. (2016). Among the 38 neuropeptide families identified, some were significantly overexpressed in egg-laying females as compared to mature males. This study is focused on crustacean cardioactive peptides (CCAPs), a highly expressed neuropeptide family strongly suspected of being involved in the control of egg-laying. We investigated the functional and structural characterization and tissue mapping of CCAPs, as well as the expression patterns of their receptors. CCAPs appeared to be involved in oocyte transport through the oviduct and in mechanical secretion of capsular products. Immunocytochemistry revealed that the neuropeptides were localized throughout the central nervous system (CNS) and in the nerve endings of the glands involved in egg-capsule synthesis and secretion, i.e. the oviduct gland and the main nidamental glands. The CCAP receptor was expressed in these glands and in the subesophageal mass of the CNS. Multiple sequence alignments revealed a high level of conservation of CCAP protein precursors in Sepia officinalis and Loligo pealei, two cephalopod decapods. Primary sequences of CCAPs from the two species were fully conserved, and cryptic peptides detected in the nerve endings were also partially conserved, suggesting biological activity that remains unknown for the time being.

}, doi = {10.1016/j.ygcen.2017.12.009}, author = {Endress, Maxime and C{\'e}line Zatylny-Gaudin and Corre, Erwan and Le Corguill{\'e}, Gildas and Benoist, Louis and Leprince, J{\'e}r{\^o}me and Lefranc, Benjamin and Bernay, Beno{\^\i}t and Leduc, Alexandre and Rangama, Jimmy and Anne-Gaelle Lafont and Bondon, Arnaud and Jo{\"e}l Henry} } @article {3374, title = {Cellular effects of bacterial N-3-Oxo-dodecanoyl-L-Homoserine lactone on the sponge Suberites domuncula (Olivi, 1792): insights into an intimate inter-kingdom dialogue.}, journal = {PLoS One}, volume = {9}, year = {2014}, month = {2014}, pages = {e97662}, abstract = {

Sponges and bacteria have lived together in complex consortia for 700 million years. As filter feeders, sponges prey on bacteria. Nevertheless, some bacteria are associated with sponges in symbiotic relationships. To enable this association, sponges and bacteria are likely to have developed molecular communication systems. These may include molecules such as N-acyl-L-homoserine lactones, produced by Gram-negative bacteria also within sponges. In this study, we examined the role of N-3-oxododecanoyl-L-homoserine lactone (3-oxo-C12-HSL) on the expression of immune and apoptotic genes of the host sponge Suberites domuncula. This molecule seemed to inhibit the sponge innate immune system through a decrease of the expression of genes coding for proteins sensing the bacterial membrane: a Toll-Like Receptor and a Toll-like Receptor Associated Factor 6 and for an anti-bacterial perforin-like molecule. The expression of the pro-apoptotic caspase-like 3/7 gene decreased as well, whereas the level of mRNA of anti-apoptotic genes Bcl-2 Homolog Proteins did not change. Then, we demonstrated the differential expression of proteins in presence of this 3-oxo-C12-HSL using 3D sponge cell cultures. Proteins involved in the first steps of the endocytosis process were highlighted using the 2D electrophoresis protein separation and the MALDI-TOF/TOF protein characterization: α and β subunits of the lysosomal ATPase, a cognin, cofilins-related proteins and cytoskeleton proteins actin, α tubulin and α actinin. The genetic expression of some of these proteins was subsequently followed. We propose that the 3-oxo-C12-HSL may participate in the tolerance of the sponge apoptotic and immune systems towards the presence of bacteria. Besides, the sponge may sense the 3-oxo-C12-HSL as a molecular evidence of the bacterial presence and/or density in order to regulate the populations of symbiotic bacteria in the sponge. This study is the first report of a bacterial secreted molecule acting on sponge cells and regulating the symbiotic relationship.

}, issn = {1932-6203}, doi = {10.1371/journal.pone.0097662}, author = {Gard{\`e}res, Johan and Jo{\"e}l Henry and Bernay, Beno{\^\i}t and Ritter, Andr{\`e}s and C{\'e}line Zatylny-Gaudin and Wiens, Matthias and M{\"u}ller, Werner E G and Le Pennec, Ga{\"e}l} }