PUBLICATION
Gene knockout of nuclear progesterone receptor provides insights into the regulation of ovulation by LH signaling in zebrafish
- Authors
- Tang, H., Liu, Y., Li, J., Yin, Y., Li, G., Chen, Y., Li, S., Zhang, Y., Lin, H., Liu, X., Cheng, C.H.
- ID
- ZDB-PUB-160624-9
- Date
- 2016
- Source
- Scientific Reports 6: 28545 (Journal)
- Registered Authors
- Liu, Xiaochun, Zhang, Yong
- Keywords
- Animal physiology, Reproductive biology
- MeSH Terms
-
- Animals
- Female
- Gene Knockout Techniques/methods
- Luteinizing Hormone/genetics*
- Ovarian Follicle/physiology
- Ovulation/genetics*
- Progesterone/genetics
- Receptors, Progesterone/genetics*
- Signal Transduction/genetics*
- Zebrafish
- PubMed
- 27333837 Full text @ Sci. Rep.
Citation
Tang, H., Liu, Y., Li, J., Yin, Y., Li, G., Chen, Y., Li, S., Zhang, Y., Lin, H., Liu, X., Cheng, C.H. (2016) Gene knockout of nuclear progesterone receptor provides insights into the regulation of ovulation by LH signaling in zebrafish. Scientific Reports. 6:28545.
Abstract
It is well established that the luteinizing hormone surge triggers ovulation, a dynamic process leading to the release of the mature oocyte from the ovarian follicle. But how this process controlled by LH signaling remains largely unknown in non-mammalian species. In this study, we investigated the roles of nuclear progesterone receptor (npr) in LH-induced ovulation. Our results indicate that the nuclear progesterone receptor serves as an important mediator of LH action on ovulation. This conclusion is based on the following results: (1) the expression level of npr peaks at the full-grown stage of the follicles; (2) the expression of npr is stimulated by LH signaling in vitro and in vivo; and (3) the npr null females are infertile due to ovulation defects. Moreover, we further show that LH signaling could induce ptger4b expression in an npr-dependent manner, and blockage of Ptger4b could also block hCG-induced ovulation. Collectively, our results not only demonstrate that npr serves an indispensable role in mediating the action of LH on ovulation in zebrafish, but also provide insights into the molecular mechanisms of the regulation of ovulation in fish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping