PUBLICATION
Insulin-like growth factor binding proteins inhibit oocyte maturation of zebrafish
- Authors
- Li, J., Wang, Y., Kang, T., Li, X., Niu, C.
- ID
- ZDB-PUB-190608-4
- Date
- 2019
- Source
- General and comparative endocrinology 281: 83-90 (Journal)
- Registered Authors
- Keywords
- none
- MeSH Terms
-
- Animals
- Catechols/pharmacology
- Chorionic Gonadotropin/pharmacology
- Female
- Gene Expression Regulation, Developmental/drug effects
- Humans
- Insulin-Like Growth Factor Binding Proteins/genetics
- Insulin-Like Growth Factor Binding Proteins/metabolism*
- Insulin-Like Growth Factor I/metabolism
- Isoquinolines/pharmacology
- Oocytes/metabolism
- Oocytes/physiology*
- Oogenesis/drug effects
- Ovarian Follicle/cytology
- Ovarian Follicle/drug effects
- Ovarian Follicle/metabolism
- Receptor, IGF Type 1/metabolism
- Signal Transduction/drug effects
- Zebrafish/metabolism*
- Zebrafish Proteins/metabolism*
- PubMed
- 31170402 Full text @ Gen. Comp. Endocrinol.
Citation
Li, J., Wang, Y., Kang, T., Li, X., Niu, C. (2019) Insulin-like growth factor binding proteins inhibit oocyte maturation of zebrafish. General and comparative endocrinology. 281:83-90.
Abstract
The function of insulin-like growth factor (Igf) system in ovary has attracted much attention, but the role of Igf binding proteins (Igfbps) in ovary is still largely unknown. In this study, the role of Igfbps in oocyte maturation was investigated in zebrafish. The expression of all nine identified Igfbps except Igfbp6b could be detected in the adult ovary and exhibited differential expression profiles during folliculogenesis. The expression of several Igfbps is dynamically changed during oocyte maturation induced by human chorionic gonadotropin (hCG). By treatment of an Igfbps inhibitor NBI-31772 in vitro, the oocyte maturation could be stimulated in a clear dose-, time- and stage-dependent manner. Such effects were also observed by administration of NBI-31772 in vivo. Igfbps are differentially expressed in both follicular cells and oocytes, but the effect of NBI-31772 could only be found in intact follicles and not in the denuded oocytes. Previous studies have demonstrated that Igf3 is the major Igf member in regulating oocyte maturation of zebrafish. Interestingly, NBI-31772 could increase the effect of Igf3 on oocyte maturation. Furthermore, we found the effect of NBI-31772 on oocyte maturation could be blocked by an Igf type 1 receptor inhibitor BMS-536924 in vitro, suggesting the Igfbps can inhibit the oocyte maturation via Igf/Igf1r pathway. Together, we provided the first evidence in fish that Igfbps inhibit oocyte maturation of zebrafish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping