1
|
Ault-Seay TB, Payton RR, Moorey SE, Pohler KG, Schrick FN, Shepherd EA, Voy BH, Lamour KH, Mathew DJ, Myer PR, McLean KJ. Endometrial gene expression in response to lipopolysaccharide between estrous cycle phases and uterine horns in cattle. FRONTIERS IN ANIMAL SCIENCE 2022. [DOI: 10.3389/fanim.2022.939876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Uterine bacterial community abundances shift throughout the estrous cycle, potentially altering the immunological environment of the uterus and impacting subsequent fertility. The objective of the current study was to evaluate the immunological impact of lipopolysaccharide (LPS), as a model for potentially pathogenic bacteria, throughout the uterine endometrium between the luteal and follicular phase of the estrous cycle. Bovine uterine tracts were harvested in mid-luteal (n = 7) or follicular (n = 7) phase. Explants were collected from the contralateral and ipsilateral horn relative to the dominant follicle or corpus luteum, then subjected to one of three treatments: uncultured control, cultured control, or cultured with LPS (1 µg/mL). Explants underwent RNA extraction and targeted RNA sequencing for expression analyses of 40 immune response related genes. Sequencing reads were mapped to Bos taurus genome in CLC Genomics Workbench. Resulting total read counts were normalized by housekeeping gene GAPDH and analyzed for overall expression profile by Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) and Variable Importance in Projection (VIP) analyses in Metaboanalyst. Individual gene expression differences were determined by GLIMMIX procedure in SAS with fixed effects of treatment, estrous phase, uterine horn, and their interaction, with random effect of individual uterus. Expression of 29 genes were affected among treatment groups, with seven genes increased in LPS treatment compared to other groups (P < 0.05). Multiple genes were affected by estrous phase and uterine horn, independent of treatment (P < 0.05). The OPLS-DA analyses indicated overall gene expression differences due to clustering by estrous cycle and treatment (P < 0.001), with no effect of uterine horn (P > 0.10). Similar clustering was observed between luteal and follicular phase explants of controls, but distinct separate clustering between phases with LPS treatment (P = 0.001). According to VIP analyses, mucins were identified as contributing the most to differences observed between phase and treatment. In conclusion, estrous cycle phase resulted in differing overall endometrial gene expression profiles of immune response to LPS treatment. Therefore, altered immunological environment of the uterus in response to bacteria at different estrous cycle stages may lead to differences in reproductive success.
Collapse
|
2
|
Heat stress influences the attenuation of prostaglandin synthesis by interferon tau in bovine endometrial cells. Theriogenology 2021; 165:52-58. [PMID: 33631711 DOI: 10.1016/j.theriogenology.2021.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 12/13/2022]
Abstract
Heat stress (HS) reduces reproductive performance of cattle, possibly by disrupting endocrine regulation such as prostaglandin (PG) production from uterus and estradiol 17β production from the dominant follicle. Prostaglandin F2α (PGF2α) secretion from endometrium surges during the luteal phase due to tumor necrosis factor (TNF) α stimulation and a positive-feedback loop with oxytocin (OT) from the corpus luteum, ultimately triggering luteolysis, while interferon τ (IFNT) inhibits upregulation of PGF2α production by TNFα and OT, thereby preventing luteolysis and triggering recognition of pregnancy. In the present study, we investigated the effect of OT, TNFα, and IFNT on PGF2α production in both types of endometrial cells under HS conditions. Stimulation of PGF2α production in endometrial epithelial cells by OT was unaffected by HS, while stimulation of PGF2α production in endometrial stromal cells by TNFα was enhanced by HS, and this increased PGF2α production was not significantly suppressed by IFNT. These results suggest that HS disrupted the regulation of PGF2α production by TNFα and IFNT in bovine endometrial stromal cells and it might be one of causes for low conception rate of cattle in summer.
Collapse
|
3
|
Song Y, Zhou F, Tan X, Liu X, Ding J, Zhang C, Li F, Zhu W, Ma W, Hu R, Zhang M. Bushen Huoxue recipe attenuates early pregnancy loss via activating endometrial COX2-PGE2 angiogenic signaling in mice. BMC Complement Med Ther 2021; 21:36. [PMID: 33446182 PMCID: PMC7809844 DOI: 10.1186/s12906-021-03201-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND During the fresh cycles of in vitro fertilization and embryo transfer, a disturbance in the reproductive endocrine environment following controlled ovarian hyperstimulation (COH) is closely related to compromised endometrial receptivity. This is a major disadvantage for women during pregnancy. Based on the theory of traditional Chinese medicine, Bushen Huoxue recipe (BSHXR) has been indicated to facilitate embryo implantation. METHODS The COH model (Kunming breed) was induced by injecting mice with pregnant mare serum gonadotrophin (0.4 IU/g) and human chorionic gonadotropin (1 IU/g), followed by treatment with BSHXR at three different concentrations (5.7, 11.4, and 22.8 g/kg), Bushen recipe (BSR) (5.7 g/kg), and Huoxue recipe (HXR) (5.7 g/kg). After successful mating, the pregnancy rate and implantation sites were examined on embryo day 8 (ED8), and the weight ratio of endometrium was calculated on ED4 midnight. Serum estrogen, progesterone, and endometrial PGE2 levels were measured using enzyme-linked immunosorbent assay. The endometrial microvasculature was evaluated using CD31 immunostaining. The protein and mRNA levels of the angiogenic factors in the endometrium were evaluated using western blot, immunohistochemistry, and polymerase chain reaction. RESULTS In the COH group, the pregnancy rate and implantation sites were significantly decreased, and abnormal serum hormone levels and impaired endometrial vascular development were observed. After BSHXR treatment, the supraphysiological serum progesterone level in COH mice was restored to normalcy. Moreover, the abnormal expression of the endometrial pro-angiogenic factors, including HIF1α, COX2-PGE2 pathway, and the down-stream factors, namely, MMP2, MMP9, TIMP2, and FGF2 after subjecting mice to COH was significantly improved after BSHXR treatment. CONCLUSION BSHXR could improve embryo implantation by regulating hormonal balance and modulating endometrial angiogenesis in mice, without inducing any side effects in normal pregnancy.
Collapse
Affiliation(s)
- Yufan Song
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Fanru Zhou
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Xiujuan Tan
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Xia Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Jiahui Ding
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Chu Zhang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Fan Li
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Wenxin Zhu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Wenwen Ma
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Runan Hu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Mingmin Zhang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
| |
Collapse
|
4
|
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.
Collapse
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.
| |
Collapse
|
5
|
Li T, Hai L, Liu B, Mao W, Liu K, Li Q, Guo Y, Jia Y, Bao H, Cao J. TLR2/4 promotes PGE 2 production to increase tissue damage in Escherichia coli-infected bovine endometrial explants via MyD88/p38 MAPK pathway. Theriogenology 2020; 152:129-138. [PMID: 32408026 DOI: 10.1016/j.theriogenology.2020.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 03/31/2020] [Accepted: 04/04/2020] [Indexed: 01/22/2023]
Abstract
Prostaglandin E2 (PGE2), a lipid mediator, is released by several cell types including endometrial cells and plays a central role in bacterial infection of the endometrium during inflammation. PGE2 production accumulated in Escherichia coli (E. coli) -infected bovine endometrial tissue, which increased E. coli-infected endometrial tissue damage. However, the mechanisms of PGE2 accumulation in the E. coli-infected endometrium during inflammation-associated endometrial tissue damage remain unclear. This study was conducted to investigate the role of Toll-like receptors (TLRs) 2 and 4 in increased PGE2 production in E. coli-infected endometrial tissue. E. coli and TLR2/4 agonists significantly induced cyclooxygenase-2 and microsomal prostaglandin E synthase-1 expression and PGE2 synthesis detected by RT-PCR, Western blot, and ELISA in the endometrial tissue. The expression and synthesis were dramatically decreased by TLR4, myeloid differentiation factor88 (MyD88), and p38 mitogen-activated protein kinase (MAPK) inhibitors in E. coli-infected endometrial tissue. These inhibitors also significantly decreased proinflammatory factor (interleukin-6 and tumor necrosis factor-α) and damage-associated molecular pattern (high mobility group box-1 and hyaluronan-binding protein-1) release and tissue damage measured by double-label immunofluorescence in E. coli-infected endometrial explants. Our work provides in vitro evidence that TLR2/4-MyD88/p38 MAPK promotes PGE2 synthesis and E. coli-infected endometrial tissue damage, which may be useful for improving PGE2-based therapies for endometritis.
Collapse
Affiliation(s)
- Tingting Li
- College of Veterinary Medicine, China Agricultural University, Beijing, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Lili Hai
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Bo Liu
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Wei Mao
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Kun Liu
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Qianru Li
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Yuli Guo
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Yan Jia
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Haixia Bao
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
| | - Jinshan Cao
- Key Laboratory of Clinical Diagnosis and Treatment Techniques of Animal Disease for Ministry of Agriculture, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.
| |
Collapse
|
6
|
Li T, Liu B, Guan H, Mao W, Wang L, Zhang C, Hai L, Liu K, Cao J. PGE2 increases inflammatory damage in Escherichia coli-infected bovine endometrial tissue in vitro via the EP4-PKA signaling pathway. Biol Reprod 2020; 100:175-186. [PMID: 30010723 DOI: 10.1093/biolre/ioy162] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 07/13/2018] [Indexed: 11/15/2022] Open
Abstract
Endometritis is the most common bovine uterine disease following parturition. The role of prostaglandin E2 (PGE2) in the regulation of endometrial inflammation and repair is well understood. Excess PGE2 is also generated in multiple inflammatory diseases, including endometritis. However, it remains unclear whether PGE2 is associated with pathogen-induced inflammatory damage to the endometrium. To clarify the role of PGE2 in pathogen-induced inflammatory damage, this study evaluated the production of PGE2, inflammatory factors, and damage-associated molecular patterns (DAMPs) in cultured Escherichia coli-infected bovine endometrial tissue. PGE2 production was significantly higher in E. coli-infected tissue, and in E. coli-infected tissue treated with 15-prostaglandin dehydrogenase (15-PGDH) inhibitors, as compared to uninfected tissue. Phospholipase A2 (PLA2), cyclooxygenase-2 (COX-2), and microsomal prostaglandin E synthase-1 (mPGES-1) were also upregulated in E. coli-infected tissue, while concentrations of arachidonic acid (AA), leukotrienes, DAMPs, and other proinflammatory factors increased. The accumulation of PGE2 clearly damaged the cultured tissue. Treatment with the COX-2, mPGES-1, EP4, and protein kinase A (PKA) inhibitors decreased the production of PGE2, inflammatory factors, and DAMPs, simultaneously alleviating the E. coli-induced endometrial tissue damage. Therefore, the PGE2 that was generated by COX-2 and mPGES-1 accumulated, and this pathogenic PGE2 increased inflammatory damage by upregulating inflammatory factors and DAMPs in E. coli-infected bovine endometrial tissue. This upregulation of inflammatory factors and DAMPs might be regulated by the EP4-PKA signaling pathway.
Collapse
Affiliation(s)
- Tingting Li
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Bo Liu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Hong Guan
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Wei Mao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Lingrui Wang
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Chao Zhang
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Lili Hai
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Kun Liu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Jinshan Cao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China.,Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| |
Collapse
|
7
|
Chiumia D, Hankele AK, Groebner AE, Schulke K, Reichenbach HD, Giller K, Zakhartchenko V, Bauersachs S, Ulbrich SE. Vascular Endothelial Growth Factor A and VEGFR-1 Change during Preimplantation in Heifers. Int J Mol Sci 2020; 21:ijms21020544. [PMID: 31952188 PMCID: PMC7014046 DOI: 10.3390/ijms21020544] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 02/06/2023] Open
Abstract
Vascular endothelial growth factor A (VEGFA) plays a critical angiogenic role in the endometrium of placentalia during preimplantation. The role of VEGFA and its receptors is not fully characterised in bovine reproduction. We analysed the mRNA expression of VEGFA isoforms 121, 165 and 189, and VEGF receptors 1 and 2 in three experimental settings (A, B and C). We compared intercaruncular endometrium of cyclic to pregnant heifers at Days 12, 15 and 18 post insemination (Day 0), and between Day 15 and Day 18 conceptuses (A). We further compared caruncular versus intercaruncular endometrium at Day 15 (B), and endometrium of heifers carrying embryos originating from somatic cell nuclear transfer (SCNT) versus in vitro fertilisation (IVF) at Day 18 (C). Endometrial VEGFA protein was localised and quantified. Pregnant heifers displayed lower intercaruncular endometrial mRNA expression of VEGFA-121 (p = 0.045) and VEGFA-189 (p = 0.009) as well as lower VEGFA protein abundance (p < 0.001) at Day 15. The VEGFA protein was localised in intercaruncular luminal, glandular epithelium and in tunica muscularis of blood vessels. At Day 15, caruncular endometrium displayed higher VEGFA mRNA expression than intercaruncular endometrium (p < 0.05). Intercaruncular endometrial VEGFA protein at Day 18 was higher in abundance in SCNT than in IVF (p = 0.038). Therefore, during preimplantation in cattle, there may be a need for timely physiological reduction in intercaruncular endometrial VEGFA expression in favour of the caruncular area to facilitate a gradient towards the implantation sites. A higher expression of VEGFA in SCNT may predispose for later placentation abnormalities frequently observed following SCNT.
Collapse
Affiliation(s)
- Daniel Chiumia
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, 8092 Zurich, Switzerland; (D.C.); (A.-K.H.)
| | - Anna-Katharina Hankele
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, 8092 Zurich, Switzerland; (D.C.); (A.-K.H.)
| | - Anna E. Groebner
- Physiology Weihenstephan, Technical University of Munich, 85354 Freising, Germany; (A.E.G.); (K.S.)
| | - Katy Schulke
- Physiology Weihenstephan, Technical University of Munich, 85354 Freising, Germany; (A.E.G.); (K.S.)
| | - Horst-Dieter Reichenbach
- Bavarian State Research Center for Agriculture, Institute of Animal Breeding, 85586 Poing, Grub, Germany;
| | - Katrin Giller
- ETH Zurich, Animal Nutrition, Institute of Agricultural Sciences, 8092 Zurich, Switzerland;
| | - Valeri Zakhartchenko
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians University, 81377 Munich, Germany; (V.Z.); (S.B.)
| | - Stefan Bauersachs
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians University, 81377 Munich, Germany; (V.Z.); (S.B.)
- Vetsuisse Faculty Zurich, University of Zurich, Eschikon 27, AgroVet-Strickhof, 8315 Lindau (ZH), Switzerland
| | - Susanne E. Ulbrich
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, 8092 Zurich, Switzerland; (D.C.); (A.-K.H.)
- Physiology Weihenstephan, Technical University of Munich, 85354 Freising, Germany; (A.E.G.); (K.S.)
- Correspondence: ; Tel.: +41-44-632-27-21
| |
Collapse
|
8
|
Wang Y, Yao Y, Zhang C, Guo Y, Zhang H, Han Y, Yuan Z, Weng Q. Seasonal expressions of COX-1, COX-2 and EP4 in the uteri of the wild Daurian ground squirrels (Spermophilus dauricus). Prostaglandins Other Lipid Mediat 2019; 143:106343. [PMID: 31195125 DOI: 10.1016/j.prostaglandins.2019.106343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/08/2019] [Accepted: 06/07/2019] [Indexed: 12/22/2022]
Abstract
Prostaglandins (PGs) play a pivotal role in uterine reproductive process including maternal recognition of pregnancy, cell proliferation, and myometrium contractions in mammals. In this study, we investigated the immunolocalizations and expression levels of Prostaglandin E2 synthases cyclo-oxygenase (COX)-1 and COX-2, as well as one of PGE2 receptor subtypes 4 (EP4) in the uteri of the wild Daurian ground squirrels (Spermophilus dauricus) during the breeding and non-breeding seasons. Histologically, the thickness of endometrium: myometrium ratio in the uteri of the breeding season was higher than that of the non-breeding season. The immunostainings of COX-1, COX-2 and EP4 were observed in stromal cells, glandular cells and myometrium cells in the breeding and non-breeding seasons. The protein and mRNA expression levels of COX-1, COX-2 and EP4 were higher in the uteri of the breeding season than those of in the non-breeding season. The mean mRNA levels of COX-1, COX-2 and EP4 were positively correlated with uterine weights. In addition, the PGE2 concentration of uterine tissues as well as plasma PGE2, 17β-estradiol, progesterone, LH and FSH levels were also significantly higher in the breeding season compared to those of the non-breeding season. These results suggested that PGE2 might play an important autocrine or paracrine role in the regulation of seasonal changes in the uterine functions of the wild Daurian ground squirrels during the breeding and non-breeding seasons.
Collapse
Affiliation(s)
- Yu Wang
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Yuchen Yao
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Chunjiao Zhang
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Yuanyuan Guo
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Haolin Zhang
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Yingying Han
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Zhengrong Yuan
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Qiang Weng
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China.
| |
Collapse
|
9
|
Li T, Mao W, Liu B, Gao R, Zhang S, Wu J, Fu C, Deng Y, Liu K, Shen Y, Cao J. LP induced/mediated PGE 2 synthesis through activation of the ERK/NF-κB pathway contributes to inflammatory damage triggered by Escherichia coli-infection in bovine endometrial tissue. Vet Microbiol 2019; 232:96-104. [PMID: 31030852 DOI: 10.1016/j.vetmic.2019.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 01/31/2023]
Abstract
The bovine endometrium is constantly challenged with pathogenic bacteria, especially with Escherichia coli. In previous studies, we showed that prostaglandin E2 (PGE2) synthesis was increased in E. coli-infected bovine endometrial tissue, which promoted the development of inflammatory damage. However, the molecular mechanism underlying this accumulation of PGE2 remained undefined. Lipoprotein (LP) is one of critical outer membrane protein in E. coli, which regulates inflammatory response. In this study, we determined the role of LP in PGE2 accumulation in bovine endometrial tissue by infecting the tissue with wild endometrial pathogenic E. coli and E. coli LP deletion mutant (JE5505) strains. We demonstrate that JE5505 was less effective than pathogenic E. coli in inducing the production of PGE2,IL-6, TNF-α, HMGB-1, and HABP1 and that the induction of cytokines was dependent on the activation of MAPKs, as revealed by rapid phosphorylation of ERK1/2/NF-κB in the endometrial tissues, furthermore, LP also induced PGE2 synthessis and cytokine secretion. Additionally, ERK and NF-κB inhibitors significantly inhibited PGE2 production and cytokine secretion and reduced or attenuated tissue damage in JE5505-infected and LP induced endometrial tissues. What is more important, we reported PGE2 introduction increased the expression of pro-inflammatory factors and DAMPs in E. coli-infected bovine endometrial tissue. Taken together, these results indicate that LP is involved in the accumulation of PGE2 through the activation of the ERK/NF-κB pathway that induces the production of pro-inflammatory factors and damage-associated molecular patterns (DAMPs) in E. coli-infected bovine endometrial tissue. These results should help in better understanding and management of postpartum inflammatory diseases in dairy cows.
Collapse
Affiliation(s)
- Tingting Li
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Wei Mao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Bo Liu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Ruifeng Gao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Shuangyi Zhang
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Jindi Wu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Changqi Fu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Yang Deng
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Kun Liu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Yuan Shen
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China
| | - Jinshan Cao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, China.
| |
Collapse
|
10
|
Shen Y, Feng S, Liu B, Mao W, Gao R, Wu J, Deng Y, Gao L, Zhang S, Li Q, Cao J. Prostaglandin E2 promotes Pam3CSK4-induced inflammation in endometrial epithelial cells of cattle. Anim Reprod Sci 2019; 200:51-59. [DOI: 10.1016/j.anireprosci.2018.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/26/2018] [Accepted: 11/19/2018] [Indexed: 02/06/2023]
|
11
|
Shen Y, Liu B, Mao W, Gao R, Feng S, Qian Y, Wu J, Zhang S, Gao L, Fu C, Li Q, Deng Y, Cao J. PGE 2 downregulates LPS-induced inflammatory responses via the TLR4-NF-κB signaling pathway in bovine endometrial epithelial cells. Prostaglandins Leukot Essent Fatty Acids 2018; 129:25-31. [PMID: 29482767 DOI: 10.1016/j.plefa.2018.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 01/15/2018] [Accepted: 01/23/2018] [Indexed: 12/22/2022]
Abstract
Postpartum bacterial infections of the uterus cause endometritis in dairy cows. Inflammatory responses to bacterial infections in the bovine uterus were generated through pattern recognition receptors (PRRs) that bind to pathogen-associated molecules such as lipopolysaccharide (LPS) from Escherichia coli. Among these PRRs, Toll-like receptor 4 (TLR4) is primarily responsible for LPS recognition, which triggers inflammatory responses via mitogen-activated protein kinases (MAPKs) and NF-κB signaling activation, resulting in the expression of inflammatory mediators in mammals such as IL-8 and IL-6. Previous studies indicate that PGE2 plays an important role in bacterial endometritis, although details on the mechanism underlying how it regulates LPS-induced inflammatory responses in bovine endometrial epithelial cells (bEECs) remain elusive. In the present study, bEECs were pre-treated with exogenous PGE2 and/or PGF2α prior to LPS stimulation. With PGE2 pre-treatment, we observed an augmentation in LPS-stimulated PKA, ERK, and IκBα phosphorylation and cyclooxygenase-2 (COX-2) and anti-inflammatory cytokine IL-6 expression and downregulation of prostaglandin E2 receptor 4 (EP4) and TLR4 in bEECs. These results indicate that LPS-induced inflammatory responses through TLR4 signaling in bEECs could be downregulated by exogenous PGE2 pre-treatment, but not PGF2α.
Collapse
Affiliation(s)
- Yuan Shen
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Bo Liu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China.
| | - Wei Mao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Ruifeng Gao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Shuang Feng
- Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Yinghong Qian
- Inner Mongolia of Agricultural & Animal Husbandry Science, No.22, Zhaojun Road, Yuquan District, 010031 Hohhot, China
| | - Jindi Wu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Shuangyi Zhang
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Long Gao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Changqi Fu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Qianru Li
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Yang Deng
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China
| | - Jinshan Cao
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China; Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Inner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, 010018 Hohhot, China.
| |
Collapse
|