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Qin X, Yang S, Zhang Y, Li L, Li P, Long M, Guo Y. Effects of non-esterified fatty acids on relative abundance of prostaglandin E 2 and F 2α synthesis-related mRNA transcripts and protein in endometrial cells of cattle in vitro. Anim Reprod Sci 2020; 221:106549. [PMID: 32861111 DOI: 10.1016/j.anireprosci.2020.106549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 01/06/2023]
Abstract
Cows nearing parturition have a negative energy balance (NEB), which is closely associated with lesser fertility. The NEB results in greater fat mobilisation and production of a large amount of non-esterified fatty acid (NEFA). Prostaglandins (PG), especially prostaglandin E2 (PGE2) and prostaglandin F2α (PGF2α), have important functions in regulating reproductive function. There, however, is little known about how the synthesis and release of PG are affected by NEFA. In this study, there was a focus on effects of NEFA on PG secretion as well as relative abundances of mRNA transcript and protein for PG synthetases and PG receptors in bovine endometrial (BEND) cells. Proliferation rate of BEND cells decreased in a concentration-dependent manner as NEFA increased in the media. The concentrations of PGE2 and PGF2α in NEFA treatment groups also decreased, while the ratio of PGE2/PGF2α and the relative abundances of proteins and mRNA that regulate PG synthesis and PG receptor mRNA transcripts and protein were greater as the NEFA concentration increased. Collectively, when there were large NEFA concentrations in the medium, there was a lesser release of PGE2 and PGF2α, however, there was a greater ratio of PGE2/PGF2α and relative abundances of mRNA transcripts and protein for PG synthetases and PG receptors in BEND cells, which changed the internal milieu and physiological function of the uterus with possible effects on fertility after calving. These findings provide important information that will help for further investigation of associations between NEB and fertility in dairy cows during the non-lactation to lactation-transition period.
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Affiliation(s)
- Xueqiang Qin
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China
| | - Shuhua Yang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China
| | - Yi Zhang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China
| | - Lin Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China
| | - Peng Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China.
| | - Miao Long
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China.
| | - Yang Guo
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110161, China.
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