鲑科鱼类垂体促性腺激素细胞。II. 虹鳟（Salmo gairdneri irideus）中促性腺激素I和促性腺激素II细胞的个体发生。

Salmonid pituitary gonadotrophs. II. Ontogeny of GTH I and GTH II cells in the rainbow trout (Salmo gairdneri irideus).

作者信息

Nozaki M, Naito N, Swanson P, Dickhoff W W, Nakai Y, Suzuki K, Kawauchi H

机构信息

Primate Research Institute, Kyoto University, Aichi, Japan.

出版信息

Gen Comp Endocrinol. 1990 Mar;77(3):358-67. doi: 10.1016/0016-6480(90)90225-b.

DOI:10.1016/0016-6480(90)90225-b

PMID:2186959

Abstract

Immunocytochemistry of rainbow trout pituitary gonadotrophs (GTH I- and GTH II-producing cells) during gametogenesis was investigated. GTH I and GTH II were found in distinctly different cells in all stages of reproductive development that were examined. Only GTH I cells were present in trout prior to puberty. GTH II appeared in addition to GTH I coincident with the onset of vitellogenesis and spermatogenesis. Both GTH I and GTH II cells were found in trout at the time of final reproductive maturation, although the number of GTH II cells was greater than that of GTH I cells. These data indicate that GTH I and GTH II are localized in separate cells in the trout pituitary throughout gametogenesis, and that synthesis of GTH I and GTH II varies during reproductive development.

摘要

研究了虹鳟垂体促性腺激素细胞（产生促性腺激素I和促性腺激素II的细胞）在配子发生过程中的免疫细胞化学情况。在所有检查的生殖发育阶段，促性腺激素I和促性腺激素II存在于明显不同的细胞中。在青春期前的鳟鱼中仅存在促性腺激素I细胞。随着卵黄发生和精子发生的开始，除促性腺激素I细胞外还出现了促性腺激素II细胞。在最终生殖成熟时，在鳟鱼中发现了促性腺激素I和促性腺激素II细胞，尽管促性腺激素II细胞的数量多于促性腺激素I细胞。这些数据表明，在整个配子发生过程中，促性腺激素I和促性腺激素II在虹鳟垂体中定位于不同的细胞中，并且促性腺激素I和促性腺激素II的合成在生殖发育过程中有所变化。