Cytokine and cell adhesion molecule expression pattern in the gilthead seabream (Sparus aurata L.) testis

Chaves-Pozo E., Liarte-Lastra S., Fernández-Alacid L., Cabas I., García-Alcázar A., Meseguer J., Mulero V., García-Ayala A.

Date de parution: juillet 2008
Volume: 32
Number: 2 suppl.
Pagination: 122-123
Editeur: Société Française d'Ichtyologie

The gilthead seabream is a seasonally breeding protandrous hermaphrodite teleost, which develops asynchronous spermatogenesis during the male phase. During the second reproductive cycle the fish underwent a degenerative process accompanied by testicular acidophilic granulocyte infiltration, which started at post-spawning and which was enhanced at the testicular involution stage, prior to sex change. E-selectin, a cell adhesion molecule expressed by endothelial cells, and CCL4-like chemokine transcript levels increased in the spermatogenesis, post-spawning and testicular involution stages. The highest levels of interleukin-1b mRNA were observed at spermatogenesis, while the highest levels of tumour necrosis factor-α mRNA occurred during spawning and at the beginning of post-spawning. Finally, the mRNA levels of the transforming growth factor b1 peaked during post-spawning and spermatogenesis, but increased only gradually during the testicular involution stage.

Mots-clés: Cell adhesion molecules - Cytokines - FISH - Testis
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