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Li J, Liu Y, He J, Wu Z, Wang F, Huang J, Zheng L, Luo T. Progestin and adipoQ receptor 7 (PAQR7) mediate the anti-apoptotic effect of P4 on human granulosa cells and its deficiency reduces ovarian function in female mice. J Ovarian Res 2024; 17:35. [PMID: 38317224 PMCID: PMC10845654 DOI: 10.1186/s13048-024-01348-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 01/10/2024] [Indexed: 02/07/2024] Open
Abstract
PURPOSE PAQR7 plays a key role in cell apoptosis as a progesterone membrane receptor. The physiological mechanism of PAQR7 in ovarian function and its anti-apoptotic action in mammals remain poorly understood. METHODS We first added 0.2 µM aminoglutethimide (AG), an inhibitor of endogenous progesterone (P4) secretion, and transfected siPAQR7 co-incubated with P4 in human KGN cells to identify granulosa cell apoptosis, respectively. Additionally, we used Paqr7 knockout (PAQR7 KO) mice to assess the role of PAQR7 in the ovary. RESULTS The PAQR7 deficiency significantly increased apoptosis of KGN cells, and this significant difference disappeared following P4 supplementation. The Paqr7-/- female mice showed a prolonged estrous cycle, reduced follicular growth, increased the number of atresia follicles, and decreased the concentrations of E2 and AMH. The litters, litter sizes, and spontaneous ovulation in the Paqr7-/- mice were significantly decreased compared with the Paqr7+/+ mice. In addition, we also found low expression of PAQR7 in GCs from human follicular fluids of patients diagnosed with decreased ovarian reserve (DOR) and ovaries of mice with a DOR-like phenotype, respectively. CONCLUSIONS The present study has identified that PAQR7 is involved in mouse ovarian function and fertilization potential. One possible mechanism is mediating the anti-apoptotic effect of P4 on GC apoptosis via the BCL-2/BAX/CASPASE-3 signaling pathway. The mechanism underlying the effect of PAQR7 on ovarian development and aging remains to be identified.
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Affiliation(s)
- Jia Li
- School of Basic Medical science, Nanchang University, Nanchang, Jiangxi, 330031, China
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Yiting Liu
- School of Basic Medical science, Nanchang University, Nanchang, Jiangxi, 330031, China
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Jinxia He
- Reproductive Medical Center, Jiangxi Maternal and Child Health Hospital, Affiliated Maternal and Child Health Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Zixuan Wu
- School of Basic Medical science, Nanchang University, Nanchang, Jiangxi, 330031, China
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Fang Wang
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Jian Huang
- School of Basic Medical science, Nanchang University, Nanchang, Jiangxi, 330031, China
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Liping Zheng
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China.
- School of Public Health, Nanchang University, Nanchang, Jiangxi, 330006, China.
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, P.R. China.
| | - Tao Luo
- School of Basic Medical science, Nanchang University, Nanchang, Jiangxi, 330031, China.
- Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang University, Nanchang, Jiangxi, 330031, China.
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, Jiangxi, 330031, China.
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Wang Z, He H, Chen M, Ni M, Yuan D, Cai H, Chen Z, Li M, Xu H. Impact of coprophagy prevention on the growth performance, serum biochemistry, and intestinal microbiome of rabbits. BMC Microbiol 2023; 23:125. [PMID: 37165350 PMCID: PMC10170819 DOI: 10.1186/s12866-023-02869-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/23/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND Coprophagy plays a vital role in maintaining growth and development in many small herbivores. Here, we constructed a coprophagy model by dividing rabbits into three groups, namely, control group (CON), sham-coprophagy prevention group (SCP), and coprophagy prevention group (CP), to explore the effects of coprophagy prevention on growth performance and cecal microecology in rabbits. RESULTS Results showed that CP treatment decreased the feed utilization and growth performance of rabbits. Serum total cholesterol and total triglyceride in the CP group were remarkably lower than those in the other two groups. Furthermore, CP treatment destroyed cecum villi and reduced the content of short-chain fatty acids (SCFAs) in cecum contents. Gut microbiota profiling showed significant differences in the phylum and genus composition of cecal microorganisms among the three groups. At the genus level, the abundance of Oscillospira and Ruminococcus decreased significantly in the CP group. Enrichment analysis of metabolic pathways showed a significantly up-regulated differential metabolic pathway (PWY-7315, dTDP-N-acetylthomosamine biosynthesis) in the CP group compared with that in the CON group. Correlation analysis showed that the serum biochemical parameters were positively correlated with the abundance of Oscillospira, Sutterella, and Butyricimonas but negatively correlated with the abundance of Oxalobacte and Desulfovibrio. Meanwhile, the abundance of Butyricimonas and Parabacteroidesde was positively correlated with the concentration of butyric acid in the cecum. CONCLUSIONS In summary, coprophagy prevention had negative effects on serum biochemistry and gut microbiota, ultimately decreasing the growth performance of rabbits. The findings provide evidence for further revealing the biological significance of coprophagy in small herbivorous mammals.
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Affiliation(s)
- Zhitong Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Hui He
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Mengjuan Chen
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Mengke Ni
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Dongdong Yuan
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Hanfang Cai
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zhi Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225000, China
| | - Ming Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Huifen Xu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China.
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Coprophagy Prevention Affects the Reproductive Performance in New Zealand White Rabbits Is Mediated through Nox4-ROS-NFκB Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022. [DOI: 10.1155/2022/8999899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Coprophagy is of great significance to the growth, development, and reproductive performance of rabbits. This study is aimed at exploring the effect of coprophagy on the reproductive performance of New Zealand white rabbits by coprophagy prevention (CP). The results showed that CP treatment significantly decreased the growth and development performance of female rabbits and the live birth rate of embryos. The results of blood biochemical indexes showed that CP treatment significantly increased the contents of serum ALB, ALP, and MDA, while serum SOD activity was significantly decreased. Transcriptome analysis showed that GO terms were mainly enriched in transport function and reproductive function after CP treatment. In addition, KEGG results showed that inflammation related signal pathways were activated and the expression level of genes related to tight junction proteins was downregulated by CP treatment. Concurrently, western blot further confirmed the results of KEGG. In short, fecal feeding is an important survival strategy for some small rodents, coprophagy prevention will affect the inflammatory level of the body, change the oxidative stress level of the body, and then activate NOX4-ROS-NF-κB pathway, increase the expression level of adhesion protein ICAM-1 and VCAM-1, lead to the damage of uterine epithelial barrier, and then affect the reproductive performance of rabbits.
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