Presence of specific growth hormone binding sites in rainbow trout (Oncorhynchus mykiss) tissues: Characterization of the hepatic receptor

Yao, Kouassi Benjamin; Niu, Ping; Gac, Florence Le; Bail, P.‐Y. Le

doi:10.1016/0016-6480(91)90126-q

Cited by 96 publications

(35 citation statements)

References 44 publications

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“…While the binding was fully characterized only in immature ovaries, binding was also detected in vitellogenic, preovulatory and post-ovulatory ovaries. These binding sites were similar to the GH receptors characterized in trout liver (Yao et al 1991), however in both sexes the concentration of binding sites, reported per gram of fresh gonadal tissue, appeared to be in a range 100 times smaller than in the trout liver. Van Der Kraak et al's (1990) findings suggested that GH acted on preovulatory follicules by interfering with the cAMP transduction pathway.…”

Section: Evidence For Direct Gonadal Site Of Action For Ghsupporting

confidence: 71%

Growth hormone (GH) and reproduction: a review

Gac

Blaise

Fostier

et al. 1993

Fish Physiol Biochem

168

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ResumeLes interactions entre les fonctions de croissance et de reproduction mises en evidence chez de nombreux vert6br6s, sont particulierement aigiies A certaines tapes du cycle vital des poissons. Nous d6crivons les interactions endocrines existant entre les axes somatrope et gonadotrope en insistant sur le role jou6 par l'hormone de croissance (GH). L'analyse compare de ces phenomenes chez les mammiferes, les poissons et les amphibiens permet de sugg6rer que la GH joue un rle sp6cifique dans la physiologie de la puberty, la gametog6nese et la fertility. Nous mettons en evidence l'apport original des tudes effectu6es sur le module poisson dans ce champ d'investigation. AbstractInteraction between growth and reproduction occurs in many vertebrates and is particularly obvious at certain stages of the life cycle in fish. Endocrine interactions between the gonadotropic axis and the somatotropic axis are described, the potential role of GH being emphasised. A comparative analysis of these phenomena in mammals, amphibians and fish, suggests a specific role of GH in the physiology of puberty, gametogenesis and fertility. It also shows the original contribution made by studies on the fish model in this field of investigations.

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Section: Evidence For Direct Gonadal Site Of Action For Ghsupporting

confidence: 71%

Growth hormone (GH) and reproduction: a review

Gac

Blaise

Fostier

et al. 1993

Fish Physiol Biochem

168

View full text Add to dashboard Cite

show abstract

“…in rabbits (Ando et al 1994), swine (Quesnel 1999) and fish (Yao et al 1991)) and in pig follicles (Quesnel 1999) (Table 3). In fish, this GHbinding activity is preferentially found in intracellular membranes, and, to a lesser extent, in plasma membranes (Yao 1993).…”

Section: Ghrsmentioning

confidence: 99%

Growth hormone: roles in female reproduction

Hull¹,

Harvey²

2001

Journal of Endocrinology

191

124

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GH, as its name suggests, is obligatory for growth and development. It is, however, also involved in the processes of sexual differentiation and pubertal maturation and it participates in gonadal steroidogenesis, gametogenesis and ovulation. It also has additional roles in pregnancy and lactation. These actions may reflect direct endocrine actions of pituitary GH or be mediated by its induction of hepatic or local IGF-I production. However, as GH is also produced in gonadal, placental and mammary tissues, it may act in paracrine or autocrine ways to regulate local processes that are strategically regulated by pituitary GH. The concept that GH is an important modulator of female reproduction is the focus of this review.

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“…GH receptors are present in many organs and most abundantly in the liver (Gray et al, 1990). To assess the target organs for GH in salmonids, a homologous radioreceptor assay for GH was established for coho salmon and rainbow trout (Sakamoto and Hirano, 1991;Yao et al, 1991). In the trout, GH receptors were identified in liver, gill, intestine, and posterior kidney.…”

Section: Academic Pressmentioning

confidence: 99%

Identification and Modulation of a Growth Hormone-Binding Protein in Rainbow Trout (Oncorhynchus mykiss) Plasma during Seawater Adaptation

Sohm

Manfroid

Pezet

et al. 1998

General and Comparative Endocrinology

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A soluble protein that specifically bound 125 I-human growth hormone (hGH) was identified in rainbow trout plasma, using HPLC-gel filtration. The binding affinity of the protein for hGH was 1.2 ؋ 10 9 M ؊1 . 125 I-rainbow trout GH (tGH) was also able to bind to the protein albeit with a lower affinity (6.6 ؋ 10 7 M ؊1 ) than hGH. Crosslinking experiments using 125 I-hGH revealed two specific bands of 150 and 130 kDa. The complex 125 I-hGH-BP could be precipitated by a monoclonal anti-GH receptor antibody, suggesting a close relationship between the plasma GH-BP and the GH receptor. A fourfold increase in the hGH binding to the GH-BP was shown 48 h after transfer of the fishes from freshwater to seawater. The increase in binding was related to a high binding capacity without significant changes in binding affinity. These results suggest a potential role of this related GH-BP as an index of GH effects during seawater adaptation in salmonids.1998 Academic Press

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Presence of specific growth hormone binding sites in rainbow trout (Oncorhynchus mykiss) tissues: Characterization of the hepatic receptor

Cited by 96 publications

References 44 publications

Growth hormone (GH) and reproduction: a review

Growth hormone (GH) and reproduction: a review

Growth hormone: roles in female reproduction

Identification and Modulation of a Growth Hormone-Binding Protein in Rainbow Trout (Oncorhynchus mykiss) Plasma during Seawater Adaptation

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