Cabas, I.

Chaves-Pozo, E. (Elena)

Fernández-Alacid, L.

García-Ayala, A.

Liarte-Lastra, S.

Meseguer, J.

Mulero, V.

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.

Cabas, I. (Isabel)

Meseguer, J. (José)

Mulero, V. (Victoriano)

García-Ayala, A. (Alfonsa)

Repositorio Institucional Digital del IEO

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

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.N

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

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