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Mlyczyńska E, Rytelewska E, Zaobidna E, Respekta-Długosz N, Kopij G, Dobrzyń K, Kieżun M, Smolińska N, Kamiński T, Rak A. In vitro effect of visfatin on endocrine functions of the porcine corpus luteum. Sci Rep 2024; 14:14780. [PMID: 38926439 PMCID: PMC11208563 DOI: 10.1038/s41598-024-65102-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Previously, we demonstrated the expression of visfatin in porcine reproductive tissues and its effect on pituitary endocrinology. The objective of this study was to examine the visfatin effect on the secretion of steroid (P4, E2) and prostaglandin (PGE2, PGF2α), the mRNA and protein abundance of steroidogenic markers (STAR, CYP11A1, HSD3B, CYP19A1), prostaglandin receptors (PTGER2, PTGFR), insulin receptor (INSR), and activity of kinases (MAPK/ERK1/2, AKT, AMPK) in the porcine corpus luteum. We noted that the visfatin effect strongly depends on the phase of the estrous cycle: on days 2-3 and 14-16 it reduced P4, while on days 10-12 it stimulated P4. Visfatin increased secretion of E2 on days 2-3, PGE2 on days 2-3 and 10-12, reduced PGF2α release on days 14-16, as well as stimulated the expression of steroidogenic markers on days 10-12 of the estrous cycle. Moreover, visfatin elevated PTGER mRNA expression and decreased its protein level, while we noted the opposite changes for PTGFR. Additionally, visfatin activated ERK1/2, AKT, and AMPK, while reduced INSR phosphorylation. Interestingly, after inhibition of INSR and signalling pathways visfatin action was abolished. These findings suggest a regulatory role of visfatin in the porcine corpus luteum.
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Affiliation(s)
- Ewa Mlyczyńska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Krakow, Poland
| | - Edyta Rytelewska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Ewa Zaobidna
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Natalia Respekta-Długosz
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Krakow, Poland
| | - Grzegorz Kopij
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Kamil Dobrzyń
- Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Marta Kieżun
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Nina Smolińska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Tadeusz Kamiński
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn-Kortowo, Poland
| | - Agnieszka Rak
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland.
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Ginther OJ. Uteroovarian pathway for embryo-empowered maintenance of the corpus luteum in farm animals. Theriogenology 2024; 216:103-110. [PMID: 38169182 DOI: 10.1016/j.theriogenology.2023.12.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/11/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024]
Abstract
The first luteal response to pregnancy in farm animals at 12-18 days after ovulation involves maintenance of the corpus luteum (CL) if pregnancy has occurred. In most common farm species, regression of the CL results from production of a luteolysin (PGF2α) by the nongravid uterus, and maintenance of the CL involves the production of an antiluteolysin (PGE2) by the gravid uterus and conceptus. The proximal component of a unilateral pathway from a uterine horn to the adjacent CL for transport of PGF2α and PGE2 is the uterine venous and lymphatic vessels and the distal component is the ovarian artery. The mechanisms for venolymphatic arterial transport of PGF2α and PGE2 from a uterine horn to the adjacent CL ovary and transfer of each prostaglandin through the walls of the uteroovarian vein and ovarian artery occur by similar mechanisms probably as a consequence of similarities in molecular structure between the two prostaglandins. Reported conclusions or interpretations during the first luteal response to pregnancy in sows and ewes are that PGE2 increases in concentration in the uteroovarian vein and ovarian artery and counteracts the negative effect of PGF2α on the CL. In cows, treatment with PGE2 increases circulating progesterone concentrations and prevents spontaneous luteolysis and luteolysis induced by estradiol, an intrauterine device, or PGF2α. The prevailing acceptance that interferon tau is the primary factor for maintaining the CL during early pregnancy in ruminants will likely become tempered by the increasing reports on PGE2.
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Affiliation(s)
- O J Ginther
- Eutheria Foundation, Cross Plains, WI, 53528, USA.
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Mlyczyńska E, Kurowska P, Wachowska D, Grzesiak M, Dupont J, Rak A. Phoenixin-14 as a novel direct regulator of porcine luteal cell functions†. Biol Reprod 2024; 110:154-168. [PMID: 37815939 PMCID: PMC10790343 DOI: 10.1093/biolre/ioad138] [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] [Indexed: 10/12/2023] Open
Abstract
Phoenixin is a neuropeptide with a well-established role in the central regulation of reproductive processes; however, knowledge regarding its role in the ovary is limited. One of the main active phoenixin isoforms is phoenixin-14, which acts through G protein-coupled receptor 173. Our research hypothesis was that phoenixin-14 is expressed in porcine corpus luteum and exerts luteotropic action by affecting the endocrine function of luteal cells through G protein-coupled receptor 173 and protein kinase signaling. Luteal cells were cultured to investigate the effect of phoenixin-14 (1-1000 nM) on endocrine function. We showed that phoenixin-14 and G protein-coupled receptor 173 are produced locally in porcine corpus luteum and their levels change during the estrous cycle. We detected phoenixin-14 immunostaining in the cytoplasm and G protein-coupled receptor 173 in the cell membrane. Plasma phoenixin levels were highest during the early luteal phase. Interestingly, insulin, luteinizing hormone, progesterone, and prostaglandins decreased phoenixin-14 levels in luteal cells. Phoenixin-14 increased progesterone, estradiol, and prostaglandin E2 secretion, but decreased prostaglandin F2α, upregulated the expression of steroidogenic enzymes, and downregulated receptors for luteinizing hormone and prostaglandin. Also, phoenixin-14 increased the expression of G protein-coupled receptor 173 and the phosphorylation of extracellular signal-regulated kinase 1/2, protein kinase B, inhibited the phosphorylation of protein kinase A, and had mixed effect on AMP-activated protein kinase alpha and protein kinase C. G protein-coupled receptor 173 and extracellular signal-regulated kinase 1/2 mediated the effect of phoenixin-14 on endocrine function of luteal cells. Our results suggest that phoenixin is produced by porcine luteal cells and can be a new regulator of their function.
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Affiliation(s)
- Ewa Mlyczyńska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
| | - Patrycja Kurowska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
| | - Dominika Wachowska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
| | - Małgorzata Grzesiak
- Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
| | - Joelle Dupont
- National Research Institute for Agriculture, Food and the Environment, UMR85, Unité Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Agnieszka Rak
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
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Rio Feltrin I, Guimarães da Silva A, Rocha CC, Ferraz PA, da Silva Rosa PM, Martins T, Coelho da Silveira J, Oliveira ML, Binelli M, Pugliesi G, Membrive CMB. Effects of 17β-estradiol on the uterine luteolytic cascade in bovine females at the end of diestrus. Theriogenology 2024; 213:1-10. [PMID: 37783065 DOI: 10.1016/j.theriogenology.2023.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/19/2023] [Accepted: 09/24/2023] [Indexed: 10/04/2023]
Abstract
In cattle, 17β-estradiol (E2) is essential for triggering luteolysis via the synthesis of prostaglandin F2α (PGF2α). We aimed to evaluate the effects of E2-treatment on day 15 of the estrous cycle on the transcript abundance of genes involved in the PGF2α synthetic cascade. Nelore heifers (N = 50) were subjected to a hormonal protocol for the synchronization of ovulation. Between days 14 and 23 after estrus, the area (cm2) and blood perfusion (%) of the corpus luteum (CL) and progesterone (P4) plasma concentrations were evaluated daily. On day 15, the heifers were assigned to the Control (2 mL of pure sesame oil, N = 21) or Estradiol group (1 mg of E2 diluted in 2 mL of sesame oil, N = 23). After the treatments at 0 h, uterine biopsies were collected at times 1.5 h (C1.5h, N = 8 and E1.5h, N = 10) or 3 h (C3h, N = 8 and E3h, N = 11); and blood samples were obtained from 0, 3, 4, 6 and 7 h for the measurement of 13,14-dihydro-15-keto-PGF2α (PGFM) concentrations by ELISA. Transcript abundance was determined by RT-qPCR and protein abundance of ESRβ and OXTR was determined by Western Blotting. The Estradiol group showed greater (P < 0.05) concentrations of PGFM at 6 and 7 h compared to the Control group. A progressive decrease in plasma P4 concentrations characterized a hastened functional luteolysis, followed by structural luteolysis in the Estradiol group (P < 0.05). Among the treatment groups, no significant difference was detected for the abundance of PRKCα, PRKCβ, AKR1B1, PTGS2 and ESRα transcripts (P > 0.05). Estradiol treatment decreased the abundance of PLA2G4A, AKR1C4, and ESRβ both 1.5h and 3h after treatment (P < 0.05). The relative expression of PGR and OXTR was greater in E3h compared to the C3h (P > 0.05). Protein abundance did not differ between treatment groups at either experimental times (P > 0.05). Overall, E2 promoted an increase in PGFM concentrations and the hastening of functional and structural luteolysis in Nelore heifers through the upregulation of PGR and OXTR, demonstrating for the first time that the expression of these receptors within 3 h after E2 stimulus was associated with triggering luteolysis in cattle.
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Affiliation(s)
- Isabella Rio Feltrin
- Department of Pharmacology and Biotechnology, São Paulo State University - UNESP, Botucatu, SP, Brazil.
| | | | | | - Priscila Assis Ferraz
- Department of Animal Reproduction, University of São Paulo - USP, Pirassununga, SP, Brazil
| | - Paola Maria da Silva Rosa
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo - USP, Pirassununga, SP, Brazil
| | - Thiago Martins
- Departament of Animal and Dairy Sciences and Brown Loam Experiment Station, Mississipi State University, Raymond, Mississipi, USA
| | - Juliano Coelho da Silveira
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo - USP, Pirassununga, SP, Brazil
| | - Milena Lopes Oliveira
- Agrarian Sciences Center, State University of Maranhão Tocantins Region, Imperatriz, MA, Brazil
| | - Mario Binelli
- Department of Animal Sciences, University of Florida - UF, Gainesville, FL, USA
| | - Guilherme Pugliesi
- Department of Animal Reproduction, University of São Paulo - USP, Pirassununga, SP, Brazil
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Berisha B, Thaqi G, Sinowatz F, Schams D, Rodler D, Pfaffl MW. Prostaglandins as local regulators of ovarian physiology in ruminants. Anat Histol Embryol 2024; 53:e12980. [PMID: 37788129 DOI: 10.1111/ahe.12980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 09/14/2023] [Accepted: 09/22/2023] [Indexed: 10/05/2023]
Abstract
Prostaglandins are synthesized from arachidonic acid through the catalytic activities of cyclooxygenase, while the production of different prostaglandin types, prostaglandin F2 alpha (PGF) and prostaglandin E2 (PGE), are regulated by specific prostaglandin synthases (PGFS and PGES). Prostaglandin ligands (PGF and PGE) bind to specific high-affinity receptors and initiate biologically distinct signalling pathways. In the ovaries, prostaglandins are known to be important endocrine regulators of female reproduction, in addition to maintaining local function through autocrine and/or paracrine effect. Many research groups in different animal species have already identified a variety of factors and molecular mechanisms that are responsible for the regulation of prostaglandin functions. In addition, prostaglandins stimulate their intrafollicular and intraluteal production via the pathway of prostaglandin self-regulation in the ovary. Therefore, the objective of the review article is to discuss recent findings about local regulation patterns of prostaglandin ligands PGF and PGE during different physiological stages of ovarian function in domestic ruminants, especially in bovine. In conclusion, the discussed local regulation mechanisms of prostaglandins in the ovary may stimulate further research activities in different methodological approaches, especially during final follicle maturation and ovulation, as well as corpus luteum formation and function.
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Affiliation(s)
- Bajram Berisha
- Animal Biotechnology, Faculty of Agriculture and Veterinary, University of Prishtina, Prishtina, Kosovo
- Academy of Science of Albania, Tirana, Albania
- Animal Physiology and Immunology, School of Life Sciences, Technical University of Munich, Freising Weihenstephan, Germany
| | - Granit Thaqi
- Animal Physiology and Immunology, School of Life Sciences, Technical University of Munich, Freising Weihenstephan, Germany
| | - Fred Sinowatz
- Department of Veterinary Sciences, Ludwig-Maximilian-University of Munich, Munich, Germany
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Dieter Schams
- Animal Physiology and Immunology, School of Life Sciences, Technical University of Munich, Freising Weihenstephan, Germany
| | - Daniela Rodler
- Department of Veterinary Sciences, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - Michael W Pfaffl
- Animal Physiology and Immunology, School of Life Sciences, Technical University of Munich, Freising Weihenstephan, Germany
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6
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Kong D, Cho H, Hwang S, Choi E, Lee AY, Choi EK, Kim YB, Kim HJ, Hong S. Bioinformatics and integrated pharmacology network to identify the therapeutic targets and potential molecular mechanism of alpha-lipoic acid on primary ovarian insufficiency. J Cell Biochem 2023; 124:1557-1572. [PMID: 37660319 DOI: 10.1002/jcb.30464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 09/05/2023]
Abstract
Women experiencing primary ovarian insufficiency (POI) are more likely to experience infertility, and its incidence is increasing worldwide annually. Recently, the role of alpha-lipoic acid (ALA) in the treatment of POI has been reported. However, details of the potential pharmacological targets and related molecular pathways of ALA remain unclear and need to be elucidated. Thus, this study aims to elucidate the potential therapeutic target and related molecular mechanism of ALA on POI. First, the potential targets of POI and ALA-related targets were downloaded from online public databases. Subsequently, the overlapped target genes between POI and ALA were acquired, and gene ontology (GO), Kyoto encyclopedia of genes and genomes (KEGG) analysis, protein-protein interaction (PPI) networks were performed and constructed. Finally, molecular docking was performed to verify protein-to-protein effect. A total of 152 potential therapeutic targets were identified. The biological processes of the intersecting targets were mainly involved in the cellular response to peptides, response to xenobiotic stimuli, and response to peptide hormones. The highly enriched pathways were the cAMP, PI3K/AKT, estrogen, progesterone mediated oocyte maturation, and apoptosis signaling pathways. The top 10 hub targets for ALA in the treatment of POI were STAT3, STAT1, CASP3, MTOR, PTGS2, CASP8, HSP90AA1, PIK3CA, MAPK1, and ESR1. The binding between ALA and all top hub targets were verified using the molecular docking analysis. In summary, using the systematic integrated pharmacology network and bioinformatics analysis, this study illustrated that ALA participates in the treatment of POI via multiple targets and multiple pathways mechanisms.
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Affiliation(s)
- Deqi Kong
- Department of Biomedical Science, Graduate School of Medicine, Korea University, Seoul, Korea
| | - Heeryun Cho
- Department of Biomedical Science, Graduate School of Medicine, Korea University, Seoul, Korea
| | - Soowon Hwang
- Department of Biomedical Science, Graduate School of Medicine, Korea University, Seoul, Korea
| | - Eunsaem Choi
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Ah-Young Lee
- Central Research Institute, Designed Cells Co., Ltd., Cheongju, Korea
| | - Ehn-Kyoung Choi
- Central Research Institute, Designed Cells Co., Ltd., Cheongju, Korea
| | - Yun-Bae Kim
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - Hai-Joong Kim
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Sooncheol Hong
- Department of Biomedical Science, Graduate School of Medicine, Korea University, Seoul, Korea
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
- Institute of Stem Cell Research, Korea University, Seoul, Korea
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7
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Pate JL, Hughes CHK. Review: Luteal prostaglandins: mechanisms regulating luteal survival and demise in ruminants. Animal 2023; 17 Suppl 1:100739. [PMID: 37567666 DOI: 10.1016/j.animal.2023.100739] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 08/13/2023] Open
Abstract
The corpus luteum (CL) is critical for establishment and maintenance of pregnancy in all mammals. However, the fate of the CL in ruminants is dependent on the presence of a functional uterus or signals from a developing embryo to modify uterine function to ensure its own survival. The key molecule secreted by the uterus that must be modified is prostaglandin F2alpha (PGF2A). At the same time, there is evidence that mechanisms within the CL may influence the ability of PGF2A to cause luteolysis. This review focuses on prostaglandins and steroidogenic capacity as endogenous modulators of the sensitivity of the CL to exogenous PGF2A. Early luteal development and early pregnancy are two different luteal stages in which sensitivity of the CL to PGF2A renders it incapable, or less capable, respectively, of undergoing luteolysis in response to PGF2A compared to a midcycle CL. An analysis of molecular changes that occur during these two stages provides some novel insight into molecules and pathways worth exploring to explain the regulation of luteolytic capacity in corpora lutea of ruminants.
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Affiliation(s)
- J L Pate
- Department of Animal Science, Center for Reproductive Biology and Health, The Pennsylvania State University, AVBS Building, University Park, PA, USA.
| | - C H K Hughes
- Centre de recherche en reproduction et fertilité, Université de Montréal, 3200 rue Sicotte, St-Hyacinthe, QC J2S 7C6, Canada
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8
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Mlyczyńska E, Zaobidna E, Rytelewska E, Dobrzyń K, Kieżun M, Kopij G, Szymańska K, Kurowska P, Dall'Aglio C, Smolińska N, Kamiński T, Rak A. Expression and regulation of visfatin/NAMPT in the porcine corpus luteum during the estrous cycle and early pregnancy. Anim Reprod Sci 2023; 250:107212. [PMID: 36913896 DOI: 10.1016/j.anireprosci.2023.107212] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
Visfatin/NAMPT creates a hormonal link between energy metabolism and female reproduction. A recent study documented visfatin expression in the ovary and its action on follicular cells; however, the expression of visfatin in luteal cells is still unknown. The aim of this study, therefore, was to investigate the transcript and protein expression of visfatin as well as its immunolocalization in the corpus luteum (CL) and to examine the involvement of extracellular signal-regulated kinases (ERK1/2) in the regulation of visfatin level in response to LH, insulin, progesterone (P4), prostaglandin E2 (PGE2) and F2α (PGF2α). Corpora lutea were harvested from gilts on days 2-3, 10-12 and 14-16 of the estrous cycle and on days 10-11, 12-13, 15-16 and 27-28 of pregnancy. The current study demonstrated that visfatin expression depends on hormonal status related to the phase of the estrous cycle or early pregnancy. Visfatin was immunolocalized to the cytoplasm of small and large luteal cells. Moreover, visfatin protein abundance was increased by P4, and decreased by both prostaglandins, while LH and insulin have modulatory effects, depending on the phase of the cycle. Interestingly, LH, P4 and PGE2 effects were abolished in response to the inhibition of ERK1/2 kinase. Thus, this study demonstrated that expression of visfatin in the porcine CL is determined by the endocrine status related to the estrous cycle and early pregnancy and by the action of LH, insulin, P4 and prostaglandins via activation of the ERK1/2 pathway.
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Affiliation(s)
- Ewa Mlyczyńska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland; Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Poland
| | - Ewa Zaobidna
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Edyta Rytelewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Kamil Dobrzyń
- Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Marta Kieżun
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Grzegorz Kopij
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Karolina Szymańska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Patrycja Kurowska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
| | - Cecylia Dall'Aglio
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Nina Smolińska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Tadeusz Kamiński
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Agnieszka Rak
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland.
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9
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Mierzejewski K, Gerwel Z, Kurzyńska A, Golubska M, Bogacka I. In vitro effects of PPAR gamma ligands on gene expression in corpus luteum explants in non-pregnant pigs - Transcriptome analysis. Theriogenology 2023; 203:69-81. [PMID: 36977370 DOI: 10.1016/j.theriogenology.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/23/2023] [Accepted: 03/05/2023] [Indexed: 03/15/2023]
Abstract
The corpus luteum (CL) is a temporary endocrine structure in the female ovaries that develops cyclically in mature females during luteinization. This study aimed to determine the in vitro effects of peroxisome proliferator-activated receptor gamma (PPARγ) ligands on the transcriptomic profile of the porcine CL in the mid- and late-luteal phase of the estrous cycle using RNA-seq technology. The CL slices were incubated in the presence of PPARγ agonist - pioglitazone or antagonist - T0070907. We identified 40 differentially expressed genes after treatment with pioglitazone and 40 after treatment with T0070907 in the mid-luteal phase as well as 26 after pioglitazone and 29 after T0070907 treatment in the late-luteal phase of the estrous cycle. In addition, we detected differences in gene expression between the mid- and late-luteal phase without treatment (409 differentially expressed genes). This study revealed a number of novel candidate genes that may play a role in controlling the function of CL by regulating signaling pathways related to ovarian steroidogenesis, metabolic processes, cell differentiation, apoptosis, and immune responses. These findings become a basis for further studies to explain the mechanism of PPARγ action in the reproductive system.
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Zhang W, Peng J, Yang S, Huang Y, Tong D. Expressions of ghrelin and GHSR-1a in the corpus luteum and the stimulatory effect of ghrelin on luteal function of pregnant sows. Domest Anim Endocrinol 2023; 82:106763. [PMID: 36166950 DOI: 10.1016/j.domaniend.2022.106763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 11/15/2022]
Abstract
Studies have shown that ghrelin played direct actions in ovarian function, but the direct role of ghrelin in corpus luteum (CL) of pregnant sows has remained obscure. The study aimed to examine the expressions of ghrelin and its functional receptor (GHSR-1a) in the CL of sows during pregnancy, and evaluate the role of ghrelin in CL function of pregnant sows. Immunohistochemistry analysis showed that ghrelin and GHSR-1a are both predominantly localized in the luteal cells of pregnant sows CL. Strong immunoreactivity for ghrelin and GHSR-1a is detected at days 20 (early) and 50 (middle), but weak immunoreactivity is observed at days 90 (late) post mating. Similarly, there is a significant effect of pregnant phase on the expression (mRNA and protein) of ghrelin and GHSR-1a in the CL, with higher levels at days 20 (early) and 50 (middle), and lower values at 90 (late) post mating. In vitro, treatments of luteal cells with ghrelin (from 0.01 to 10 ng/mL) are promoted cell viability and P4 secretion in a dose-dependent manner. Ghrelin is also accelerated the LH-induced P4 secretion in luteal cells. Moreover, ghrelin is induced the release and mRNA expression of LH, and increased the release of prostaglandin (PG)E2, but reduced the secretion of PGF2α in luteal cells. In conclusion, the presences of ghrelin and GHSR-1a in the porcine CL during pregnancy, and the stimulatory effect of ghrelin on luteal cells suggest positive regulation by ghrelin in CL function of pregnant sows.
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Affiliation(s)
- Wenlong Zhang
- College of Veterinary Medicine, Northwest A and F University, Yangling, Shaanxi 712100, P.R. China
| | - Jiang Peng
- College of Veterinary Medicine, Northwest A and F University, Yangling, Shaanxi 712100, P.R. China
| | - Sitian Yang
- College of Veterinary Medicine, Northwest A and F University, Yangling, Shaanxi 712100, P.R. China
| | - Yupei Huang
- College of Veterinary Medicine, Northwest A and F University, Yangling, Shaanxi 712100, P.R. China
| | - Dewen Tong
- College of Veterinary Medicine, Northwest A and F University, Yangling, Shaanxi 712100, P.R. China.
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11
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Zhou F, Zhong LL, Tan Y, Liu L, Pei G. A metabolomic approach to study triptolide-induced ovarian damage in rats. Toxicology 2022; 482:153351. [DOI: 10.1016/j.tox.2022.153351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
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12
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The Role of Peroxisome Proliferator-Activated Receptors in PGF2α-Induced Luteolysis in the Bovine Corpus Luteum. Animals (Basel) 2022; 12:ani12121542. [PMID: 35739878 PMCID: PMC9219485 DOI: 10.3390/ani12121542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The corpus luteum (CL) is responsible for progesterone (P4) secretion. In the absence of pregnancy, luteolysis occurs, which leads to a reduction in P4 production, followed by the structural regression of the CL. In cows, prostaglandin F2α (PGF2α) is the main luteolytic factor. It is also an endogenous ligand for peroxisome proliferator-activated receptors (PPARs), which are important factors regulating mammalian reproductive function. However, the mechanisms of action of PPAR isoforms, i.e., PPARα, PPARδ and PPARγ, in the luteolytic pathways in cattle are still not fully understood. The aim of this in vitro study was to determine the expression of PPAR isoforms in the bovine CL throughout the estrous cycle, and their involvement in PGF2α-induced processes related to luteolysis. The obtained results indicate that the expression of PPARs changes in the bovine CL throughout the estrous cycle; moreover, PGF2α affects its expression. This study provides evidence that PPARγ, among all examined PPAR isoforms, could be involved in the regulation of PGF2α-induced luteolysis in cattle, and PPARs may affect CL regression at multiple sites. These results help to widen the knowledge of the mechanisms of luteal regression in the bovine CL. Abstract The participation of peroxisome proliferator-activated receptors (PPARs) in ovarian function in cattle is still not fully understood. The aim of this in vitro study was to determine: (i) the immunolocalization, mRNA expression and tissue concentration of PPARα, PPARδ and PPARγ in the bovine corpus luteum (CL) (n = 40) throughout the estrous cycle, and (ii) the involvement of PPAR in PGF2α-induced processes related to luteolysis. CL (n = 9) explants were cultured in the presence of PPAR antagonists (10−5 M) in combination with or without PGF2α receptor antagonist (10−5 M) and PGF2α (10−6 M). The mRNA and protein expression of PPARs was evaluated through qPCR, IHC, and ELISA, respectively. The results showed that PPAR mRNA and protein expression differed according to the luteal stages. PGF2α upregulated PPARδ and PPARγ mRNA expression in the bovine CL in vitro, whereas PPARγ increased the inhibitory effect of PGF2α by decreasing progesterone secretion and the mRNA expression of hydroxy-delta-5-steroid dehydrogenase, 3 β- and steroid delta-isomerase 1 (HSD3B1) in the CL explants; mRNA transcription of tumor necrosis factor α (TNFα) and inducible nitric oxide synthase (iNOS) was increased. The obtained results indicate that the mRNA and protein expression of PPARs changes in the bovine CL throughout the estrous cycle and under the influence of PGF2α. We suggest that isoform γ, among all examined PPARs, could be a factor involved in the regulation of PGF2α-induced processes related to luteolysis in the bovine CL. Further studies are needed to understand the role of PPAR in luteal regression in the CL of cattle.
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13
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New Aspects of Corpus Luteum Regulation in Physiological and Pathological Conditions: Involvement of Adipokines and Neuropeptides. Cells 2022; 11:cells11060957. [PMID: 35326408 PMCID: PMC8946127 DOI: 10.3390/cells11060957] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 02/28/2022] [Accepted: 03/08/2022] [Indexed: 11/17/2022] Open
Abstract
The corpus luteum is a small gland of great importance because its proper functioning determines not only the appropriate course of the estrous/menstrual cycle and embryo implantation, but also the subsequent maintenance of pregnancy. Among the well-known regulators of luteal tissue functions, increasing attention is focused on the role of neuropeptides and adipose tissue hormones—adipokines. Growing evidence points to the expression of these factors in the corpus luteum of women and different animal species, and their involvement in corpus luteum formation, endocrine function, angiogenesis, cells proliferation, apoptosis, and finally, regression. In the present review, we summarize the current knowledge about the expression and role of adipokines, such as adiponectin, leptin, apelin, vaspin, visfatin, chemerin, and neuropeptides like ghrelin, orexins, kisspeptin, and phoenixin in the physiological regulation of the corpus luteum function, as well as their potential involvement in pathologies affecting the luteal cells that disrupt the estrous cycle.
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14
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Berisha B, Thaqi G, Rodler D, Schams D, Sinowatz F, Pfaffl MW. Regulatory changes of local produced prostaglandins in corpus luteum after experimentally induced luteolysis in the cow. Anat Histol Embryol 2022; 51:289-299. [PMID: 35132701 DOI: 10.1111/ahe.12790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/08/2021] [Accepted: 01/18/2022] [Indexed: 11/30/2022]
Abstract
The objective of the study was to evaluate the expression patterns of prostaglandin F2alpha (PGF), prostaglandin E2 (PGE), PGF receptor (FP), PGE receptors (EP2 and EP4), prostaglandin-endoperoxide synthase 2 (PTGS2) and prostaglandin synthases (PGFS and PGES) in corpora lutea (CL) during experimentally induced luteolysis in cow. The Fleckvieh cows in the mid-luteal phase (days 8-12, control group) were injected with cloprostenol (PGF analogue), and CL were collected by transvaginal ovariectomy before (days 8-12, control group) and at 0.5, 2, 4, 12, 24, 48 and 64 h after PGF application (n = 5 per group). The mRNA expression was determined by RT-qPCR, the hormone concentrations by enzyme immunoassay and localization by immunohistochemistry. PTGS2 gene expression increased significantly 2 h after PGF application, followed by continuous and significant downregulation afterwards. The PGF tissue concentration increased significantly just after PGF injection and again during structural luteolysis (after 12 h), whereas PGE concentration significantly decreased during structural luteolysis. The FP receptor mRNA decreased significantly at 2 h and again at 12 h after PGF. In contrast, EP4 receptor mRNA increased significantly just after the PGF application (0.5 h). The immunostaining of PGES and PTGS2 on day 15-17 shows numerous positive luteal cells, followed by lower activity afterwards on day 18 (luteolysis). In conclusion, the changes of examined prostaglandin family members in CL tissue after PGF application may be key components of the local mechanisms regulating the cascade of actions leading to functional and subsequent structural luteolysis in the bovine ovary.
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Affiliation(s)
- Bajram Berisha
- Faculty of Agriculture and Veterinary, Animal Biotechnology, University of Prishtina, Prishtina, Kosovo.,Academy of Science of Albania, Tirana, Albania.,Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Granit Thaqi
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Daniela Rodler
- Department of Veterinary Sciences, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - Dieter Schams
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Fred Sinowatz
- Department of Veterinary Sciences, Ludwig-Maximilian-University of Munich, Munich, Germany.,Faculty of Veterinary Medicine, Department of Morphology, Ghent University, Merelbeke, Belgium
| | - Michael W Pfaffl
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
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15
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Piotrowska-Tomala KK, Jonczyk AW, Szóstek-Mioduchowska AZ, Żebrowska E, Ferreira-Dias G, Skarzynski DJ. The Effects of Prostaglandin E2 Treatment on the Secretory Function of Mare Corpus Luteum Depends on the Site of Application: An in vivo Study. Front Vet Sci 2022; 8:753796. [PMID: 35242830 PMCID: PMC8885592 DOI: 10.3389/fvets.2021.753796] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/28/2021] [Indexed: 11/13/2022] Open
Abstract
We examined the effect of prostaglandin (PG) E2 on the secretory function of equine corpus luteum (CL), according to the application site: intra-CL injection vs. an intrauterine (intra-U) administration. Moreover, the effect of intra-CL injection vs. intra-U administration of both luteotropic factors: PGE2 and human chorionic gonadotropin (hCG) as a positive control, on CL function was additionally compared. Mares were assigned to the groups (n = 6 per group): (1) an intra-CL saline injection (control); (2) an intra-CL injection of PGE2 (5 mg/ml); (3) an intra-CL injection of hCG (1,500 IU/ml); (4) an intra-U saline administration (control); (5) an intra-U administration of PGE2 (5 mg/5 ml); (6) an intra-U administration of hCG (1,500 IU/5 ml). Progesterone (P4) and PGE2 concentrations were measured in blood plasma samples collected at −2, −1, and 0 (pre-treatment), and at 1, 2, 3, 4, 6, 8, 10, 12, and 24 h after treatments. Moreover, effects of different doses of PGE2 application on the concentration of total PGF2α (PGF2α and its main metabolite 13,14-dihydro-15-keto-prostaglandin F2α– PGFM) was determined. The time point of PGE2, hCG, or saline administration was defined as hour “0” of the experiment. An intra-CL injection of PGE2 increased P4 and PGE2 concentrations between 3 and 4 h or at 3 and 12 h, respectively (p < 0.05). While intra-U administration of PGE2 elevated P4 concentrations between 8 and 24 h, PGE2 was upregulated at 1 h and between 3 and 4 h (p < 0.05). An intra-CL injection of hCG increased P4 concentrations at 1, 6, and 12 h (p < 0.05), while its intra-U administration enhanced P4 and PGE2 concentrations between 1 and 12 h or at 3 h and between 6 and 10 h, respectively (p < 0.05). An application of PGE2, dependently on the dose, supports equine CL function, regardless of the application site, consequently leading to differences in both P4 and PGE2 concentrations in blood plasma.
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Affiliation(s)
- Katarzyna K. Piotrowska-Tomala
- Department Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Agnieszka W. Jonczyk
- Department Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Anna Z. Szóstek-Mioduchowska
- Department Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Ewelina Żebrowska
- Department Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Graca Ferreira-Dias
- Faculty of Veterinary Medicine, CIISA - Centre for Interdisciplinary Research in Animal Health, University of Lisbon, Lisbon, Portugal
| | - Dariusz J. Skarzynski
- Department Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
- *Correspondence: Dariusz J. Skarzynski
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16
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Domingues RR, Ginther OJ, Gomez-Leon V, Castro T, Wiltbank MC. Endometrial and luteal responses to a prostaglandin F2alpha pulse: A comparison between heifers and mares. Biol Reprod 2022; 106:979-991. [DOI: 10.1093/biolre/ioac025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/28/2021] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
In heifers and mares, multiple pulses of prostaglandin F2alpha (PGF) are generally associated with complete luteal regression. Although PGF pulses occur before and during luteolysis, little is known about the role of minor PGF pulses during preluteolysis on subsequent luteal and endometrial PGF production that may initiate luteolysis. Heifers (n = 7/group) and mares (n = 6/group) were treated with a single minor dose of PGF (3.0 and 0.5 mg, respectively) during mid-luteal phase (12 and 10 days postovulation in heifers and mares, respectively). After treatment, a transient decrease in progesterone (P4) concentrations occurred in heifers between Hours 0–2 but at Hour 4 P4 was not different from pre-treatment. In mares, P4 was unaltered between Hours 0 and 4. Concentrations of P4 decreased in both species by Hour 24 and complete luteolysis occurred in mares by Hour 48. Luteal and endometrial gene expression were evaluated 4 hours post-treatment. In heifers, luteal mRNA abundance of PGF receptor and PGF dehydrogenase were decreased while PTGS2, PGF transporter, and oxytocin receptor were increased. In the heifer endometrium, receptors for oxytocin, P4, and estradiol were upregulated. In mares, luteal expression of PGF receptor was decreased while PGF transporter and oxytocin receptor were increased. The decrease in P4 between Hours 4 and 24 and changes in gene expression were consistent with upregulation of endogenous synthesis of PGF. The hypotheses were supported that a single minor PGF treatment upregulates endogenous machinery for PGF synthesis in heifers and mares stimulating endogenous PGF synthesis through distinct regulatory mechanisms in heifers and mares.
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Affiliation(s)
- Rafael R Domingues
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
- Endocrinology and Reproductive Physiology Program, University of Wisconsin-Madison, Madison, WI, USA
- Eutheria Foundation, Cross Plains, WI, USA
| | - O J Ginther
- Eutheria Foundation, Cross Plains, WI, USA
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Victor Gomez-Leon
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
- Eutheria Foundation, Cross Plains, WI, USA
| | - Thadeu Castro
- Eutheria Foundation, Cross Plains, WI, USA
- Department of Veterinary Medicine, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Milo C Wiltbank
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI, USA
- Endocrinology and Reproductive Physiology Program, University of Wisconsin-Madison, Madison, WI, USA
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17
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Jonczyk AW, Piotrowska-Tomala KK, Skarzynski DJ. Comparison of Intra-CL Injection and Peripheral Application of Prostaglandin F 2α Analog on Luteal Blood Flow and Secretory Function of the Bovine Corpus Luteum. Front Vet Sci 2022; 8:811809. [PMID: 35087892 PMCID: PMC8787071 DOI: 10.3389/fvets.2021.811809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
We investigated the effects of different doses of dinoprost injected directly into the bovine corpus luteum (CL) on (i) concentrations of progesterone (P4) and oxytocin (OT) in peripheral blood and (ii) mRNA levels of steroidogenic acute regulatory protein (STAR), cytochrome P450 family 11 subfamily A member 1 (P450scc), hydroxy-delta-5-steroid dehydrogenase, 3 β- and steroid delta-isomerase 1 (HSD3B), and receptor-interacting protein kinases 1 and 3 (RIPK1, RIPK3) in CL tissue. Moreover, we examined the effects of dinoprost, injected intra-CL or administered intramuscularly (IM), on CL secretory function and on indicators of CL vascular network status: luteal tissue area (LTA), CL blood flow (CLBF), and the CLBF:LTA ratio (Adj. CLBF), in cows at the early and mid-luteal phases. In the Experiment 1, cows (day 10 of the cycle) were allocated to (i) an intra-CL injection of saline (control; n = 3); (ii) an intra-CL injection of dinoprost (1.25 mg; 2.5 mg, or 5 mg; n = 3 for each dose); (iii) an IM administration of saline (control; n = 3); or (iv) an IM administration of dinoprost (25 mg; positive control; n = 3). Concentrations of OT and P4 were measured in plasma samples. The mRNA expression of steroidogenesis- or necroptosis-related factors was determined in CL tissue 4 h after treatments. In Experiment 2, cows on day 4 (n = 12) or day 10 (n = 12) were allocated to (i) an intra-CL injection of dinoprost (2.5 mg/0.5 ml; n = 6), or (ii) IM administration of dinoprost (25 mg/5 ml; n = 6). Concentrations of P4 were measured in plasma samples. Luteal tissue area, CLBF, and Adj. CLBF were assessed based on color Doppler ultrasonography. An intra-CL injection of dinoprost increased OT and decreased P4 levels in the jugular vein (JV) in a dose-dependent manner in cows at the mid-luteal phase. Increased CLBF and Adj. CLBF, accompanied by reduced P4 levels, were observed 2 h after intra-CL dinoprost injection in middle-stage CL. Decreased STAR and increased RIPK1 and RIPK3 mRNA levels confirmed that 2.5 mg dinoprost injected directly into CL is the minimum dose that induces luteolytic cascade. Injection of dinoprost directly into the CL (at a dosage lower than recommended for peripheral application) results in a pattern similar to IM dinoprost administration.
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18
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Braun BC, Jewgenow K. Role of sex steroids and prostaglandins during the luteal life cycle in domestic cats and lynxes. Domest Anim Endocrinol 2022; 78:106689. [PMID: 34688216 DOI: 10.1016/j.domaniend.2021.106689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/07/2021] [Accepted: 09/22/2021] [Indexed: 11/20/2022]
Abstract
Although lynxes and domestic cats are both felids, their luteal life cycles differ. As in many species, corpora lutea (CLs) of domestic cats regress after pregnancy or pseudopregnancy. By contrast, CLs of lynxes do not functionally regress following the cycle of their formation. They stay physiologically active and persist for several years. To obtain an improved understanding of the life cycle of both species, we comparatively studied the CLs of these species in detail. In this review, we summarize the similarities and differences of their CLs regarding sex steroid and prostaglandin generation and receptors. The most evident differences were visible in the CLs of lynxes, which persist from previous cycles, compared with CLs of lynxes and domestic cats from the recent luteal cycle. We assume that these differences could indicate processes ensuring long-term luteal survival and functionality, for example, by high estrogen production/metabolism or by antioxidative effects.
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Affiliation(s)
- B C Braun
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, 10315, Berlin, Germany.
| | - K Jewgenow
- Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, 10315, Berlin, Germany
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Synthesis and Structure-activity Relationship Study of 2,4-dioxothiazolidin-5-ylidene Derivatives for 15-hydroxyprostaglandin Dehydrogenase Inhibitory Activity, Prostaglandin E2 Release, and Wound Healing Effect. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-021-0071-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Expression of arylalkylamine n-acetyltransferase (AANAT) and acetylserotonin o-methyltransferase (ASMT) in the corpus luteum of pregnant sows and synthesis of melatonin in luteal cells. Cell Tissue Res 2021; 388:167-179. [PMID: 34816281 DOI: 10.1007/s00441-021-03556-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 11/11/2021] [Indexed: 10/19/2022]
Abstract
In vertebrates, melatonin is mainly synthesized from serotonin in the pineal gland. Many reports have documented that melatonin is also synthesized in the extra-pineal tissues, but the synthesis of melatonin in the corpus luteum (CL) of pregnant sows has never been studied. The objectives of this study were to evaluate the expression of melatonin-synthesizing enzymes, arylalkylamine N-acetyltransferase (AANAT) and acetylserotonin O-methyltransferase (ASMT), in the CL of sows during pregnancy and to investigate the synthesis of melatonin in luteal cells. Results showed that AANAT and ASMT were both expressed in the CL of sows during pregnancy, higher levels were observed in the early- and mid-stage CL, and the lowest abundance was found in the regressing CL (later-stage). The immunostaining for AANAT and ASMT was predominantly localized in the large luteal cells of porcine CL during pregnancy. Furthermore, melatonin was synthesized in luteal cells from serotonin in a dose- and time-dependent manner. And the expressions of AANAT and ASMT were upregulated by serotonin in luteal cells. In addition, progesterone (P4) secretion and cell viability were promoted in luteal cells treated with serotonin, and the stimulatory effects were blocked by luzindole (a non-selective MT1 and MT2 antagonist). Finally, the expressions of MT1 and MT2 were augmented by serotonin in luteal cells. In conclusion, this study demonstrates for the first time the developmental expression of AANAT and ASMT in the CL and a local synthesis of melatonin in luteal cells of pregnant sows, and suggests a paracrine and/or autocrine role for melatonin in luteal function.
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Rekawiecki R, Dobrzyn K, Kowalik MK. Steroid Receptor Coregulators Can Modulate the Action of Progesterone Receptor during the Estrous Cycle in Cow Endometrium. Animals (Basel) 2021; 11:ani11113217. [PMID: 34827948 PMCID: PMC8614263 DOI: 10.3390/ani11113217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/23/2021] [Accepted: 11/08/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Proper functioning of the endometrium is necessary for the implantation of the embryo after fertilization and its development throughout pregnancy. The key role in this process plays appropriate action of progesterone through the nuclear receptor isoforms. The action of the receptor is regulated by the attachment of receptor modulators called coregulators which include coactivators and corepressors. Their improper expression in humans causes a malfunction of progesterone receptors and leads to disorders of pregnancy. However, in farm animals, such disorders may be one of the reasons leading up to early embryonic lethality, which in cows reaches up to 40%. Obtained results indicate the important role of the studied coregulators in regulating progesterone activity in endometrial cells, especially during the preimplantation period. Therefore, they can be helpful in better understanding the regulation and expression of the coactivators and corepressors in cow endometrium during the estrous cycle and can contribute to reducing this problem. They can also be of significant practical importance, making for the increased efficiency of breeding these animals. Abstract Nuclear receptor coregulators include coactivators and corepressors which associate with the progesterone receptor (PGR) during its activation. Fluctuations in the transcription levels of their respective genes and subsequent protein production as well as in related activities for histone acetyltransferase (HAT) and histone deacetylase (HDAC) can affect PGR function and thus change the action of progesterone (P4) in bovine endometrium during the estrous cycle. Endometrial tissue on days 2–5, 6–10, 11–16, and 17–20 of the estrous cycle was used for determination of the mRNA expression levels of coactivators P300, CREB, and SRC-1 along with corepressor NCOR-2 using Real-Time PCR, with protein levels by Western blot. Coregulators cellular localizations were assessed by immunohistochemistry whereas the activities of HAT and HDAC by using EIA. The highest levels of mRNA and proteins for all of the investigated coregulators, as well as the highest levels of activity for HAT and HDAC, were detected over days 2–16 of the estrous cycle. All of the tested coregulatory proteins were localized in the nuclei of endometrial cells. This research indicates the important role of coregulators of the PGR receptor in regulating P4 activity in endometrial cells, especially during the pre-implantation period.
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Storni E, Bollwein H, Hankele AK, Wellnitz O, Bruckmaier RM, Ulbrich SE, Lüttgenau J. Inhibition of lipopolysaccharide-induced suppression of luteal function in isolated perfused bovine ovaries. J Reprod Dev 2021; 68:45-52. [PMID: 34732602 PMCID: PMC8872752 DOI: 10.1262/jrd.2020-131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Recently, we observed that lipopolysaccharide (LPS) suppresses corpus luteum (CL) function in isolated perfused ovaries. It remained unclear if this suppression was due to increased luteal PGF2α secretion or LPS-induced apoptosis. Therefore, possible impacts of PGF2α and LPS were inhibited by a non-steroidal anti-inflammatory drug (flunixin) and an endotoxin-binding agent (polymyxin B), respectively. Bovine ovaries with a mid-cycle CL were collected immediately after slaughter and perfused for 240 min. After 50 min of equilibration, either flunixin or polymyxin B (5 μg/ml of each) were added to the perfusion medium of six ovaries, respectively. All ovaries (n = 12) were treated with E.coli LPS (0.5 μg/ml) 60 min after the onset of perfusion, and received 500 I.U. of hCG after 210 min of perfusion. Progesterone and PGF2α were measured in the effluent perfusate every 10 and 30 min, respectively. Biopsies of the CL were collected every 60 min to determine the mRNA expression of the cytokine TNFA and factors of apoptosis (CASP3, -8). Flunixin-treatment inhibited the increase of PGF2α after LPS-challenge that was observed in the polymyxin B-treated (PX-LPS) ovaries. After hCG-stimulation, progesterone secretion increased (P< 0.05) in group PX-LPS but not in the flunixin-treated (F-LPS) ovaries. Compared to initial values before LPS-challenge, luteal mRNA expression of TNFA and CASP3 was increased (P< 0.05) in group F-LPS at 120 and 180 min, respectively, and those of CASP8 was decreased (P< 0.05) in PX-LPS at 60 and 120 min after LPS-treatment. In conclusion, although flunixin managed to inhibit PGF2α, it did not suffice to successfully prevent LPS-induced apoptosis. However, endotoxin-binding polymyxin B resulted in luteal responsiveness to hCG after LPS-challenge.
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Affiliation(s)
- Elena Storni
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057 Zurich, Switzerland
| | - Heinrich Bollwein
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057 Zurich, Switzerland
| | - Anna-Katharina Hankele
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, CH-8092 Zurich, Switzerland
| | - Olga Wellnitz
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, CH-3001 Bern, Switzerland
| | - Rupert M Bruckmaier
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, CH-3001 Bern, Switzerland
| | - Susanne E Ulbrich
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, CH-8092 Zurich, Switzerland
| | - Johannes Lüttgenau
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057 Zurich, Switzerland
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Orexin-A Regulates Follicular Growth, Proliferation, Cell Cycle and Apoptosis in Mouse Primary Granulosa Cells via the AKT/ERK Signaling Pathway. Molecules 2021; 26:molecules26185635. [PMID: 34577105 PMCID: PMC8467508 DOI: 10.3390/molecules26185635] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/08/2021] [Accepted: 09/12/2021] [Indexed: 11/16/2022] Open
Abstract
Granulosa cells (GCs) are essential for follicular growth, development, and atresia. The orexin-A (OXA) neuropeptide is widely involved in the regulation of various biological functions. OXA selectively binds to orexin receptor type 1 (OX1R) and mediates all its biological actions via OX1R. This study aimed to explore the expression of OXA and OX1R and their regulatory role in GCs proliferation, cell cycle progression, apoptosis, oocyte maturation, and underlying molecular mechanisms of these processes and elucidate its novel signaling pathway. Western blotting and RT-qPCR showed that OXA and OX1R were expressed during different developmental stages of GCs, and siRNA transfection successfully inhibited the expression of OX1R at the translational and transcriptional levels. Flow cytometry revealed that OX1R knockdown upregulated GCs apoptosis and triggered S-phase arrest in cell cycle progression. RT-qPCR and Western blotting showed significantly reduced expression of Bcl-2 and elevated expression of Bax, caspase-3, TNF-α, and P21 in OX1R-silenced GCs. Furthermore, the CCK-8 assay showed that knockdown of OX1R suppressed GCs proliferation by downregulating the expression of PCNA, a proliferation marker gene, at the translational and transcriptional levels. Western blotting revealed that knockdown of OX1R resulted in a considerable decrease of the phosphorylation level of the AKT and ERK1/2 proteins, indicating that the AKT/ERK1/2 pathway is involved in regulating GCs proliferation and apoptosis. In addition, OX1R silencing enhanced the mRNA expression of GDF9 and suppressed the mRNA expression of BMP15 in mouse GCs. Collectively, these results reveal a novel regulatory role of OXA in the development of GCs and folliculogenesis by regulating proliferation, apoptosis, and cell cycle progression. Therefore, OXA can be a promising therapeutic agent for female infertility.
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Review: Vaspin (SERPINA12) Expression and Function in Endocrine Cells. Cells 2021; 10:cells10071710. [PMID: 34359881 PMCID: PMC8307435 DOI: 10.3390/cells10071710] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/22/2021] [Accepted: 06/30/2021] [Indexed: 01/31/2023] Open
Abstract
Proper functioning of the body depends on hormonal homeostasis. White adipose tissue is now known as an endocrine organ due to the secretion of multiple molecules called adipokines. These proteins exert direct effects on whole body functions, including lipid metabolism, angiogenesis, inflammation, and reproduction, whereas changes in their level are linked with pathological events, such as infertility, diabetes, and increased food intake. Vaspin-visceral adipose tissue-derived serine protease inhibitor, or SERPINA12 according to serpin nomenclature, is an adipokine discovered in 2005 that is connected to the development of insulin resistance, obesity, and inflammation. A significantly higher amount of vaspin was observed in obese patients. The objective of this review was to summarize the latest findings about vaspin expression and action in endocrine tissues, such as the hypothalamus, pituitary gland, adipose tissue, thyroid, ovary, placenta, and testis, as well as discuss the link between vaspin and pathologies connected with hormonal imbalance.
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Hryciuk MM, Jewgenow K, Braun BC. Cloprostenol, a synthetic analog of prostaglandin F2α induces functional regression in cultured luteal cells of felids†. Biol Reprod 2021; 105:137-147. [PMID: 33864060 DOI: 10.1093/biolre/ioab070] [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: 01/29/2021] [Revised: 03/26/2021] [Accepted: 04/05/2021] [Indexed: 12/12/2022] Open
Abstract
In the present study, we investigated the effect of the synthetic analog of prostaglandin F2α (PGF2α)-cloprostenol-on cultured steroidogenic luteal cells of selected felid species over a 2-day culture period. The changes induced by cloprostenol were measured based on progesterone concentration and mRNA expression analysis of selected genes. Cloprostenol significantly reduced concentration of progesterone in cell culture medium of small luteal cells isolated from domestic cat corpora lutea (CL) at the development/maintenance stage (P < 0.05), but did not influence progesterone production in cultured cells from the regression stage. A decrease or complete silencing of progesterone production was also measured in cultured luteal cells of African lion (formation stage) and Javan leopard (development/maintenance stage). Gene-expression analysis by real-time PCR revealed that treatment with cloprostenol did not have an influence on expression of selected genes coding for enzymes of steroidogenesis (StAR, HSD3B, CYP11A1) or prostaglandin synthesis (PTGS2, PGES), nor did it effect hormone receptors (AR, ESR1, PGR, PTGER2), an anti-oxidative enzyme (SOD1) or factors of cell apoptosis (FAS, CASP3, TNFRSF1B, BCL2) over the studied period. Significant changes were measured only for expressions of luteinizing hormone (P < 0.05), prolactin (P < 0.05) and PGF2α receptors (P < 0.005) (LHCGR, PRLR, and PTGFR). The obtained results confirm that PGF2α/cloprostenol is a luteolytic agent in CL of felids and its impact on progesterone production depends on the developmental stage of the CL. Cloprostenol short-term treatment on luteal cells was associated only with functional but not structural changes related to luteal regression.
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Affiliation(s)
- Michał M Hryciuk
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, Berlin, Germany
| | - Katarina Jewgenow
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, Berlin, Germany
| | - Beate C Braun
- Leibniz Institute for Zoo and Wildlife Research, Department of Reproduction Biology, Berlin, Germany
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Wang S, Liu W, Wen A, Yang B, Pang X. Luzindole and 4P-PDOT block the effect of melatonin on bovine granulosa cell apoptosis and cell cycle depending on its concentration. PeerJ 2021; 9:e10627. [PMID: 33732541 PMCID: PMC7950190 DOI: 10.7717/peerj.10627] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/30/2020] [Indexed: 01/16/2023] Open
Abstract
Granulosa cells play an essential physiological role in mediating the follicle development and survival or apoptosis of granulosa cells dictate the follicle development or atresia. The aim of this study was to investigate the role of high dose (10-5 M) and low dose (10-9 M) melatonin in bovine granulosa cells, and assess whether MT1 and MT2 inhibiter affect granulosa cells response to melatonin. We found that the high dose (10-5 M) and low dose (10-9 M) both could act as an essential role in modulating granulosa cells apoptosis, cell cycle and antioxidant. The beneficial effect could be related to that melatonin promoted the expression of Bcl2, Bcl-xl, SOD1 and GPX4, and inhibited Bax, caspase-3 and p53 expression. Moreover P21 expression was decreased in granulosa cells treated with the high dose (10-5 M) melatonin and increased in that treated with the low dose (10-9 M) melatonin. To further reveal the role of MT1 and MT2 in mediating the effect of melatonin on granulosa cells apoptosis, cell cycle and antioxidant, we found that the luzindole and 4P-PDOT did not affect the effect of high dose (10-5 M) melatonin on regulating Bcl2, Bax, caspase-3, SOD1, GPX4 and p53 expression, while blocked its effect on modulating Bcl-xl and P21expression. However, luzindole and 4P-PDOT disturbed the effect of low dose (10-9 M) melatonin on regulating Bcl2, Bax, caspase-3, Bcl-xl, SOD1, GPX4, and p53 expression. In conclusion, these results reveal that the effect of low dose (10-9 M) melatonin on granulosa cells apoptosis are mediated by MT1 and MT2, and the high dose (10-5 M) melatonin affect the granulosa cells apoptosis by other pathway, besides MT1 and MT2. Moreover MT1 and MT2 may work in concert to modulate bovine granulosa cells function by regulating cellular progression and apoptosis.
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Affiliation(s)
- Shujuan Wang
- College of Animal Science, Anhui Science and Technology University, Fengyang, China
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Fengyang, China
| | - Wenju Liu
- College of Life and Health Science, Anhui Science and Technology University, Fengyang, China
| | - Aiyou Wen
- College of Animal Science, Anhui Science and Technology University, Fengyang, China
| | - Bing Yang
- College of Animal Science, Anhui Science and Technology University, Fengyang, China
| | - Xunsheng Pang
- College of Animal Science, Anhui Science and Technology University, Fengyang, China
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Witek P, Enguita FJ, Grzesiak M, Costa MC, Gabriel A, Koziorowski M, Slomczynska M, Knapczyk-Stwora K. Effects of neonatal exposure to methoxychlor on corpus luteum in gilts: A transcriptomic analysis. Mol Reprod Dev 2021; 88:238-248. [PMID: 33655673 DOI: 10.1002/mrd.23463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/07/2021] [Accepted: 02/20/2021] [Indexed: 11/10/2022]
Abstract
This study investigated the effects of neonatal exposure to methoxychlor (MXC), a synthetic organochlorine used as an insecticide with estrogenic, antiestrogenic, and antiandrogenic activities, on luteal function in pigs. Piglets were injected subcutaneously with MXC (20 μg/kg body weight) or corn oil (control) between postnatal Days 1 and 10 (N = 5/group). Corpora lutea from sexually mature gilts were examined for luteal steroid and prostaglandin concentrations and processed for total RNA isolation and subsequent RNA sequencing. Intra-luteal concentrations of androstenedione and prostaglandin E2 were greater, while that of estrone was lower when compared to control. Fifty-three differentially expressed (DE) microRNAS (miRNAs) (p-adjusted <.05 and log2(fold change) ≥.5) and 359 DE genes (p-adjusted <.05 and log2(fold change) ≥1) were identified in luteal tissue in response to neonatal MXC treatment. MXC was found to affect the expression of genes related to lipogenesis, steroidogenesis, membrane transport, immune response, cell signaling and adhesion. These results suggest an earlier onset of structural luteolysis in pigs caused by MXC actions in neonates. Since negative correlation analysis showed the potential interactions of miRNAs with specific messenger RNAs, we propose that these miRNAs are potential mediators of the long-term MXC effect on the CL function in pigs.
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Affiliation(s)
- Patrycja Witek
- Department of Endocrinology, Jagiellonian University in Krakow, Krakow, Poland
| | - Francisco J Enguita
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Malgorzata Grzesiak
- Department of Endocrinology, Jagiellonian University in Krakow, Krakow, Poland
| | - Marina C Costa
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - André Gabriel
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Marek Koziorowski
- Department of Physiology and Reproduction of Animals, Institute of Biotechnology, University of Rzeszow, Kolbuszowa, Poland
| | - Maria Slomczynska
- Department of Endocrinology, Jagiellonian University in Krakow, Krakow, Poland
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Cosso G, Nehme M, Luridiana S, Pulinas L, Curone G, Hosri C, Carcangiu V, Mura MC. Detection of Polymorphisms in the MTNR1A Gene and Their Association with Reproductive Performance in Awassi Ewes. Animals (Basel) 2021; 11:ani11020583. [PMID: 33672405 PMCID: PMC7926687 DOI: 10.3390/ani11020583] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/09/2021] [Accepted: 02/18/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary The purpose of the study was to explore the influence of MTNR1A gene polymorphisms on the reproductive performance in Awassi sheep, which is an important and widespread breed in developing Mediterranean countries. A total of 31 SNPs was detected, 5 of which caused amino acid changes. Two of the found SNPs were found to be totally linked and associated with an advanced reproductive recovery in ewes carrying the C allele. The obtained results could be useful for improving reproductive management in developing Mediterranean areas. Abstract The economy in Mediterranean areas is tightly linked to the evolution of the sheep-farming system; therefore, improvement in ewe’s reproductive performance is essential in the developing countries of this area. MTNR1A is the gene coding for Melatonin receptor 1 (MT1), and it is considered to be involved in the reproductive activity in sheep. The aims of this study were: (1) identifying the polymorphisms from the entire MTNR1A coding region and promoter in Lebanese Awassi sheep flocks, and (2) investigating the association between the found polymorphisms and the reproductive performance, assessed as lambing rate, litter size, and days to lambing (DTL). The study was conducted in two districts of Lebanon, where 165 lactating ewes, aged 5.2 ± 1.5 years, with body condition score (BCS) 3.3 ± 0.4, were chosen and exposed to adult and fertile rams. From 150 to 220 days after ram introduction, lambing dates and litter sizes were registered. This study provided the entire coding region of the MTNR1A receptor gene in the Awassi sheep breed. Thirty-one single nucleotide polymorphisms (SNPs) were detected, five of which were missense mutations. The H2, H3, and H4 haplotypes were associated with lower DTL (p < 0.05), as well as the SNPs rs430181568 and rs40738822721, named from now on SNP20 and SNP21, respectively. These SNPs were totally linked and can be considered as a single marker. The ewes carrying the C allele at both these polymorphic sites advanced their reproductive recovery (p < 0.05). These results are essential for improving reproductive management and obtaining advanced lambing in Awassi ewes.
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Affiliation(s)
- Giovanni Cosso
- Department of Veterinary Medicine of Sassari, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (G.C.); (S.L.); (L.P.); (V.C.)
| | - Michella Nehme
- Department of Agriculture and Food Engineering, Faculty of Engineering, Holy Spirit University of Kaslik, Kaslik, Jounieh 446, Lebanon;
| | - Sebastiano Luridiana
- Department of Veterinary Medicine of Sassari, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (G.C.); (S.L.); (L.P.); (V.C.)
| | - Luisa Pulinas
- Department of Veterinary Medicine of Sassari, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (G.C.); (S.L.); (L.P.); (V.C.)
| | - Giulio Curone
- Department of Veterinary Medicine of Milan, University of Milan, Via dell’Università 6, 26900 Lodi, Italy;
| | - Chadi Hosri
- Department of Veterinary Sciences, Faculty of Agriculture, Lebanese University, Dekwaneh, Beirut 14/6573, Lebanon;
| | - Vincenzo Carcangiu
- Department of Veterinary Medicine of Sassari, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (G.C.); (S.L.); (L.P.); (V.C.)
| | - Maria Consuelo Mura
- Department of Veterinary Medicine of Sassari, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (G.C.); (S.L.); (L.P.); (V.C.)
- Correspondence: ; Tel.: +39-079-229-437; Fax: +39-079-229-592
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Zerani M, Polisca A, Boiti C, Maranesi M. Current Knowledge on the Multifactorial Regulation of Corpora Lutea Lifespan: The Rabbit Model. Animals (Basel) 2021; 11:ani11020296. [PMID: 33503812 PMCID: PMC7911389 DOI: 10.3390/ani11020296] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Corpora lutea (CL) are temporary endocrine structures that secrete progesterone, which is essential for maintaining a healthy pregnancy. A variety of regulatory factors come into play in modulating the functional lifespan of CL, with luteotropic and luteolytic effects. Many aspects of luteal phase physiology have been clarified, yet many others have not yet been determined, including the molecular and/or cellular mechanisms that maintain the CL from the beginning of luteolysis during early CL development. This paper summarizes our current knowledge of the endocrine and cellular mechanisms involved in multifactorial CL lifespan regulation, using the pseudopregnant rabbit model. Abstract Our research group studied the biological regulatory mechanisms of the corpora lutea (CL), paying particular attention to the pseudopregnant rabbit model, which has the advantage that the relative luteal age following ovulation is induced by the gonadotrophin-releasing hormone (GnRH). CL are temporary endocrine structures that secrete progesterone, which is essential for maintaining a healthy pregnancy. It is now clear that, besides the classical regulatory mechanism exerted by prostaglandin E2 (luteotropic) and prostaglandin F2α (luteolytic), a considerable number of other effectors assist in the regulation of CL. The aim of this paper is to summarize our current knowledge of the multifactorial mechanisms regulating CL lifespan in rabbits. Given the essential role of CL in reproductive success, a deeper understanding of the regulatory mechanisms will provide us with valuable insights on various reproductive issues that hinder fertility in this and other mammalian species, allowing to overcome the challenges for new and more efficient breeding strategies.
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Transcriptome profiling of different developmental stages of corpus luteum during the estrous cycle in pigs. Genomics 2020; 113:366-379. [PMID: 33309770 DOI: 10.1016/j.ygeno.2020.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/17/2020] [Accepted: 12/06/2020] [Indexed: 12/22/2022]
Abstract
To better understand the molecular basis of corpus luteum (CL) development and function RNA-Seq was utilized to identify differentially expressed genes (DEGs) in porcine CL during different physiological stages of the estrous cycle viz. early (EL), mid (ML), late (LL) and regressed (R) luteal. Stage wise comparisons obtained 717 (EL vs. ML), 568 (EL vs. LL), 527 (EL vs. R), 786 (ML vs. LL), 474 (ML vs. R) and 534 (LL vs. R) DEGs with log2(FC) ≥1 and p < 0.05. The process of angiogenesis, steroidogenesis, signal transduction, translation, cell proliferation and tissue remodelling were significantly (p < 0.05) enriched in EL, ML and LL stages, where as apoptosis was most active in regressed stage. Pathway analysis revealed that most annotated genes were associated with lipid metabolism, translation, immune and endocrine system pathways depicting intra-luteal control of diverse CL function. The network analysis identified genes AR, FOS, CDKN1A, which were likely the novel hub genes regulating CL physiology.
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31
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Kurowska P, Mlyczyńska E, Dupont J, Rak A. Novel Insights on the Corpus Luteum Function: Role of Vaspin on Porcine Luteal Cell Angiogenesis, Proliferation and Apoptosis by Activation of GRP78 Receptor and MAP3/1 Kinase Pathways. Int J Mol Sci 2020; 21:E6823. [PMID: 32957618 PMCID: PMC7555131 DOI: 10.3390/ijms21186823] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 12/16/2022] Open
Abstract
Formation and limited lifespan of corpus luteum (CL) are important for proper ovarian periodicity and fertility. Failed vascularization, imbalance between proliferation and apoptosis leads to luteal phase deficiency and infertility. The aim of this study was to examine the effect of vaspin on angiogenesis, apoptosis and proliferation as well as the involvement of 78-kDa glucose-regulated protein receptor (GRP78) and mitogen-activated kinase (MAP3/1) in these processes. Porcine luteal cells were incubated with vaspin (0.1-10 ng/mL) for 24 h to 72 h and then mRNA and protein expression of angiogenesis: vascular endothelial growth factor (VEGFA), fibroblast growth factor 2 (FGF2), angiopoietin 1 (ANGPT1), VEGFA receptors (VEGFR1, VEGFR2), apoptosis: caspase 3, bcl-2-like protein 4 (BAX), B-cell lymphoma (BCL2), and proliferation: proliferating cells nuclear antigen (PCNA), cyclin A factors as well as secretion of VEGFA, FGF2, ANGT1 were measured by real-time polymerase chain reaction (PCR), immunoblotting and enzyme-linked immunosorbent assay (ELISA), respectively. Moreover, apoptosis was assessed by caspase activity using the Caspase-Glo 3/7 assay, while proliferation was by alamarBlue. We found that vaspin enhanced luteal cell angiogenesis, proliferation, and significantly decreased apoptosis. Additionally, using GRP78 siRNA and the pharmacological inhibitor of MAP3/1 (PD98059), we observed that the effect of vaspin was reversed to the control level in all investigated processes. Taken together, our results suggest that vaspin is a new regulator of female fertility by direct regulation of CL formation and maintenance of luteal cell function.
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Affiliation(s)
- Patrycja Kurowska
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (P.K.); (E.M.)
| | - Ewa Mlyczyńska
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (P.K.); (E.M.)
| | - Joelle Dupont
- INRAE, UMR85, Unité Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France;
| | - Agnieszka Rak
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, 30-387 Krakow, Poland; (P.K.); (E.M.)
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32
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Hughes CK, Maalouf SW, Liu WS, Pate JL. Molecular profiling demonstrates modulation of immune cell function and matrix remodeling during luteal rescue†. Biol Reprod 2020; 100:1581-1596. [PMID: 30915454 DOI: 10.1093/biolre/ioz037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/15/2019] [Accepted: 03/10/2019] [Indexed: 12/22/2022] Open
Abstract
The corpus luteum (CL) is essential for maintenance of pregnancy in all mammals and luteal rescue, which occurs around day 16-19 in the cow, is necessary to maintain luteal progesterone production. Transcriptomic and proteomic profiling were performed to compare the day 17 bovine CL of the estrous cycle and pregnancy. Among mRNA and proteins measured, 140 differentially abundant mRNA and 24 differentially abundant proteins were identified. Pathway analysis was performed using four programs. Modulated pathways included T cell receptor signaling, vascular stability, cytokine signaling, and extracellular matrix remodeling. Two mRNA that were less in pregnancy were regulated by prostaglandin F2A in culture, while two mRNA that were greater in pregnancy were regulated by interferon tau. To identify mRNA that could be critical regulators of luteal fate, the mRNA that were differentially abundant during early pregnancy were compared to mRNA that were differentially abundant during luteal regression. Eight mRNA were common to both datasets, including mRNA related to regulation of steroidogenesis and gene transcription. A subset of differentially abundant mRNA and proteins, including those associated with extracellular matrix functions, were predicted targets of differentially abundant microRNA (miRNA). Integration of miRNA and protein data, using miRPath, revealed pathways such as extracellular matrix-receptor interactions, abundance of glutathione, and cellular metabolism and energy balance. Overall, this study has provided a comprehensive profile of molecular changes in the corpus luteum during maternal recognition of pregnancy and has indicated that some of these functions may be miRNA-regulated.
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Affiliation(s)
- Camilla K Hughes
- Department of Animal Science, Center for Reproductive Biology and Health, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Samar W Maalouf
- Department of Animal Science, Center for Reproductive Biology and Health, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Wan-Sheng Liu
- Department of Animal Science, Center for Reproductive Biology and Health, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Joy L Pate
- Department of Animal Science, Center for Reproductive Biology and Health, Pennsylvania State University, University Park, Pennsylvania, USA
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Piotrowska-Tomala KK, Jonczyk AW, Skarzynski DJ, Szóstek-Mioduchowska AZ. Luteinizing hormone and ovarian steroids affect in vitro prostaglandin production in the equine myometrium and endometrium. Theriogenology 2020; 153:1-8. [PMID: 32416544 DOI: 10.1016/j.theriogenology.2020.04.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/17/2020] [Accepted: 04/30/2020] [Indexed: 11/17/2022]
Abstract
Prostaglandins (PGs) play crucial roles in the regulation of the oestrus cycle and establishment of pregnancy in animals. Luteinizing hormone (LH) and ovarian steroids are involved in regulating endometrial PG production in many species. Their effects on PG production and associated pathways in the mare myometrium and endometrium are the subjects of our interest. This study aimed to evaluate the specific effects of LH and ovarian steroids on equine myometrial and endometrial tissues on (i) PGE2 and PGF2α secretion and (ii) transcription of genes encoding specific enzymes responsible for PG synthesis, such as prostaglandin-endoperoxide synthase (PTGS2), PGE2 synthases (PGES), PGF2α synthases (PGFS), and PGI2 synthases (PGIS), using equine myometrial and endometrial explants. Equine myometrial and endometrial tissues were collected at the mid-luteal (n = 6) and follicular (n = 6) phases of the oestrus cycle and were exposed to: (1) vehicle (control), (2) arachidonic acid (AA, 50 ng/mL, positive control), (3) LH (10 ng/mL), (4) progesterone (P4, 10-7M) and (5) 17-β oestradiol (E2, 10-9M) for 24 h. After exposure, PGF2α and PGE2 concentrations were determined using direct enzyme immunoassays. Alterations in PG synthase mRNA expression were determined using RT-qPCR. After 24 h, LH and P4 increased PGE2 and PGF2α secretion by myometrial tissues at the mid-luteal phase (P < 0.05), whereas PG secretion was augmented by LH and E2 during the follicular phase (P < 0.01). In contrast, LH and E2 increased PGE2 and PGF2α secretion by endometrial tissues during the mid-luteal phase (P < 0.05), while E2 enhanced PGE2 secretion during the follicular phase of the oestrus cycle (P < 0.01). These results indicate that LH and ovarian steroids modulate PG production in equine myometrial and endometrial tissues and affect PG synthase expression at the mRNA level. We conclude that the equine myometrium is an alternative source of PG production and participates in the regulation of uterus function during the oestrus cycle.
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Affiliation(s)
- K K Piotrowska-Tomala
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland.
| | - A W Jonczyk
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - D J Skarzynski
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - A Z Szóstek-Mioduchowska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
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Wang F, Chang HM, Yi Y, Lin YM, Li H, Leung PCK. TGF-β1 promotes vitamin D-induced prostaglandin E2 synthesis by upregulating vitamin D receptor expression in human granulosa-lutein cells. Am J Physiol Endocrinol Metab 2020; 318:E710-E722. [PMID: 31961707 DOI: 10.1152/ajpendo.00361.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
There is increasing evidence showing the importance of vitamin D (Vit D) and its nuclear receptor, the Vit D receptor (VDR), in female reproductive health. Transforming growth factor-β1 (TGF-β1) and its functional receptors are expressed in human oocytes and granulosa cells that participate in follicular development and ovulation. Recently, Sma- and Mad-related protein 3 (SMAD3; a downstream effector of TGF-β1) has been proposed to mediate crosstalk between the Vit D and TGF-β1 signaling pathways, but this relationship has not been fully explored and has yet to be tested in human granulosa-lutein (hGL) cells. In this study, we showed that TGF-β1 significantly promoted the expression of VDR, and this stimulatory effect occurred through the activin receptor-like kinase 5 type I receptor-mediated SMAD3 and ERK1/2 signaling pathways in hGL cells. Additionally, we showed that Vit D increased the expression of cyclooxygenase 2 (COX-2) and the synthesis of prostaglandin E2 (PGE2) in a time- and dose-dependent manner. Furthermore, we demonstrated a synergistic effect of TGF-β1 and Vit D on the expression of COX-2 and synthesis of PGE2, and this effect could be attenuated by silencing the expression of VDR. Our findings indicate that TGF-β1 upregulates the expression of VDR, which promotes Vit D-induced COX-2 expression and subsequent PGE2 production by activating the SMAD3 and ERK1/2 signaling pathways in hGL cells.
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Affiliation(s)
- Fuxin Wang
- Center of Reproduction and Genetics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yuyin Yi
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yung-Ming Lin
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hong Li
- Center of Reproduction and Genetics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
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Stewart JL, Stella S, Cunha LL, Dias NW, Canisso IF, Mercadante VRG, Cardoso RC, Williams GL, Pohler KG, Lima FS. Administration of nerve growth factor-β to heifers with a pre-ovulatory follicle enhanced luteal formation and function and promoted LH release. Theriogenology 2020; 148:37-47. [PMID: 32126394 DOI: 10.1016/j.theriogenology.2020.02.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 01/13/2023]
Abstract
The objective of this study was to determine the effects of bovine nerve growth factor-β (NGF) on pre-ovulatory follicle vascular area, LH release, ovulation, and luteal function when administered systemically to heifers. Post-pubertal Holstein heifers (n = 12) received an intravaginal progesterone-releasing device (CIDR) and GnRH agonist (100 μg IM). The CIDR was removed 5 d later, and heifers were given dinoprost (25 mg IM) at CIDR removal and 24 h later, followed by a second dose of GnRH agonist 48 h later. Heifers were randomly assigned to treatments using a cross-over design. For example, heifers assigned to NGF (250 μg reconstituted in 12 mL PBS IM) in replicate 1 were assigned to control (12 mL PBS IM) in replicate 2. Transrectal ultrasonography was performed before treatment and repeated every 4 h up to 32 h to determine the pre-ovulatory follicle diameter, vascular area, and ovulation. Serum samples were obtained to assess LH concentrations during the periovulatory period and every 2 d post-ovulation for measuring progesterone concentrations. A subset of heifers had luteal biopsies performed on days 9 (n = 6 per treatment) and 14 (n = 6 per treatment) post-ovulation to count luteal cell numbers and measure relative mRNA abundance for steroidogenic and angiogenic enzymes and LH receptor. Treatment with NGF increased pre-ovulatory follicle diameter (P = 0.02) and serum LH concentrations (P = 0.03) but did not affect time to ovulation (P = 0.42). Heifers treated with NGF had increased serum progesterone concentrations in the subsequent luteal phase (P = 0.03), but no change in vascular area of the follicle (P = 0.16) or CL (P = 0.20). Heifers treated with NGF had a greater number of small luteal cells (P < 0.01) and a tendency for increased LH receptor (LHR) mRNA abundance in the CL (P = 0.10). There was also increased steroidogenic acute regulatory protein (STAR; P = 0.05) and a tendency for increased cytochrome P450 family 11 (CYP11A1; P = 0.10) mRNA abundance in the CL of NGF-treated heifers. There was decreased prostaglandin E2 synthase (PGES; P = 0.03) and its receptor (PGER; P = 0.05) mRNA abundance and a tendency for decreased cytochrome P450 family 17 subfamily A member 1 (CYP17A1; P = 0.08) and hydroxysteroid 17-beta dehydrogenase (HSD17B; P = 0.06) mRNA abundance in the CL of NGF-treated heifers. Administration of NGF improved CL function in heifers potentially as a result of increased LH release.
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Affiliation(s)
- Jamie L Stewart
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - Stephanie Stella
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - Laís L Cunha
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - Nicholas W Dias
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Igor F Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - Vitor R G Mercadante
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Rodolfo C Cardoso
- Department of Animal Sciences, Texas A & M University, College Station, TX, USA
| | - Gary L Williams
- Department of Animal Sciences, Texas A & M University, College Station, TX, USA
| | - Ky G Pohler
- Department of Animal Sciences, Texas A & M University, College Station, TX, USA
| | - Fabio S Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA.
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The Role of Endocannabinoid System Based on mRNA Expression During the Late Luteal Phase and Estrus in the Bovine Endometrium. ANNALS OF ANIMAL SCIENCE 2019. [DOI: 10.2478/aoas-2019-0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
There are several findings indicating that the endocannabinoid system (ECS) is an important factor, acting in multiple ways in regulating reproductive function but changes of this system in the bovine endometrium have rarely been investigated; therefore, this study was designed to consider an association between endometrial ECS expression and different stages of the estrous cycles. MRNA expressions of the ECS were investigated during the late luteal phase and estrus using real-time PCR. Following estrous synchronization of sixteen Holstein dairy cows (34±1.3 kg/day of milk production), using two PGF2α injections given 14 days apart, at 30 and 44 days in milk (DIM), blood samples and ultrasonography (US) were performed every other day from the day of second PGF2α injection (44 DIM) until the start of the next estrous cycle (67±2 DIM) to verify CL development and ovulation. Based on blood and US results endometrial tissue was collected on days 16 (late luteal phase) and 21 (estrus) of the synchronized estrous cycle (ovulation = d 0). Real-time PCR analysis of ECS mRNA expression revealed endocannabinoid receptor (CNR2), diacylglycerol lipase (DAGL), cyclooxygenase-2 (COX-2), fatty acid amide hydrolase (FAAH) and monoglyceride lipase (MGLL) had significant fold differences when comparing two different stages of the estrous cycle (late luteal phase vs. estrus). CNR2 and DAGL showed 2.01 and 2.57 fold increase, respectively (P=0.04 and P=0.02), in estrous cows. Among the analyzed genes FAAH (P=0.01) and MGLL (P=0.02) were significantly down-regulated in estrous cows, with a 5.01- and 2.44-fold difference in mRNA expression, respectively. Overall, this study highlights an association between the expression of the ECS in the bovine endometrium and stage of the estrous cycle.
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Scarinci E, Tropea A, Notaristefano G, Arena V, Alesiani O, Fabozzi SM, Lanzone A, Apa R. "Hormone of darkness" and human reproductive process: direct regulatory role of melatonin in human corpus luteum. J Endocrinol Invest 2019; 42:1191-1197. [PMID: 30912058 DOI: 10.1007/s40618-019-01036-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 03/19/2019] [Indexed: 01/18/2023]
Abstract
PURPOSE To investigate the possible role of melatonin on human luteal cell function. METHODS Corpora lutea were obtained from normally menstruating women (25-38 years old) in the midluteal phase (days 5-6 from ovulation) at the time of surgery for non-endocrine gynecologic diseases. The protocol was approved by the institutional review board of Università Cattolica del Sacro Cuore in Rome and all patients provided written informed consent. The corpora lutea were dated on the basis of the presumptive day of ovulation (day 0) , determined by urinary luteinizing hormone (LH) peak, ultrasound detection of corpus luteum or disappearance of the dominant follicle, and a rise in the plasma P concentration. ELISA or EIA kit and immunohistochemistry were performed. RESULTS Melatonin was able to increase progesterone release and to influence the balance between luteotrophic and luteolityc factors. In addition, melatonin expression and MT2 receptor were detected, confirming the direct action of this indoleamine on CL. CONCLUSIONS Melatonin may play an intriguing role in direct regulation of CL function and in establishing and maintaining of initial pregnancy. In conclusion, melatonin could become a relevant medication for improving ovarian and luteal function and in the early stages of pregnancy, opening new opportunities for the management of several ovarian-luteal and pregnancy diseases.
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Affiliation(s)
- E Scarinci
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy.
| | - A Tropea
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy
| | - G Notaristefano
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy
| | - V Arena
- Department of Pathology, Fondazione Policlinico Universitario Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - O Alesiani
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy
| | - S M Fabozzi
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy
| | - A Lanzone
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy
| | - R Apa
- Department of "Scienze della Salute della donna, del bambino e di Sanità Pubblica" della Fondazione Policlinico Universitario A Gemelli IRCCS, Università Cattolica del Sacro Cuore, L.go Agostino Gemelli, 8, 00168, Rome, Italy
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Suresh A, Reddy IJ, Mishra A, Mondal S. Suppression of COX-2 mRNA abundance in in vitro cultured goat (Capra hircus) endometrial cells by RNA interference and effect on PGF2-α and PGE2 concentrations. Anim Reprod Sci 2019; 209:106146. [PMID: 31514936 DOI: 10.1016/j.anireprosci.2019.106146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 06/07/2019] [Accepted: 08/02/2019] [Indexed: 01/22/2023]
Abstract
Cyclooxygenase-2 (COX-2) has important functions in the synthesis and release of endometrial prostaglandin F2α (PGF2α). Excessive production of COX-2 leads to an increase in endometrial PGF2α synthesis and subsequently causes luteolysis and early embryonic mortality. The aim of this study was to investigate in goats the effects of COX-2 small interference RNA (siRNA) on COX-2 mRNA abundance and the secretion of PGF2α and PGE2 in goat endometrial cells. Endometrial cells isolated from goat uteri were cultured at 38.5 °C and 5% CO2. The cells were treated with different concentrations (0, 10, 25, 50, 100, 250, 500, 750 and 1000 nM per well) of three different COX-2 siRNAs at confluency for 24 h. At 24 h post culture, COX-2 mRNA abundance was quantified using qPCR and PGF2α and PGE2 concentrations were quantified in the culture medium. There was a lesser relative abundance of COX-2 mRNA in endometrial cells at 100 to 1000 nM siRNA. The greatest extent of abundance suppression, however, was observed with 1000 nM siRNA. Transfection of COX-2 siRNA (1000 nM) to endometrial cells suppressed the COX-2 mRNA abundance by 77%, 82%, and 84% with siRNA 1, 2, 3, respectively. Furthermore, with COX-2 siRNA transfected cells, there was a lesser (P < 0.05) PGF2α concentration than in cells not transfected, whereas PGE2 secretion was not affected. The results of the study provide evidence that COX-2 siRNA used in this study suppresses COX-2 mRNA abundance and PGF2α secretion but there was no association between PGE2 concentrations and COX-2 mRNA abundance in goat endometrial epithelial cells.
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Affiliation(s)
- Arul Suresh
- Animal Physiology Division, ICAR-National Dairy Research Institute, SRS, Bengaluru, Karnataka 560030, India
| | - I J Reddy
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka 560030, India.
| | - Ashish Mishra
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka 560030, India
| | - S Mondal
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka 560030, India
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Chen P, Geng N, Zhou D, Zhu Y, Xu Y, Liu K, Liu Y, Liu J. The regulatory role of COX-2 in the interaction between Cr(VI)-induced endoplasmic reticulum stress and autophagy in DF-1 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 170:112-119. [PMID: 30529609 DOI: 10.1016/j.ecoenv.2018.11.120] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/31/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
Hexavalent chromium (Cr(VI)) is a common environmental pollutant. Exposure of Cr(VI) can lead to cell autophagy, but the preventive measures for diminishing Cr(VI)-induced autophagy need further study. COX-2 can be induced by several heavy metals and can lead to endoplasmic reticulum (ER) stress and autophagy; thus, COX-2, ER stress, and autophagy may be related. This study mainly investigated the role of COX-2 in the eIF2α-ATF4 pathway, which is a major pathway in cell autophagy. In this study, Cr(VI) was used as a xenobiotic to determine changes in the parameters of ER stress, autophagy, and COX-2 levels. At the same time, a clear contrast was obtained by assigning positive and negative controls of ER stress and autophagy. The results showed that during Cr(VI) invasion, the parameters of ER stress and autophagy (such as BiP, PERK, p62, LC3-II, and mTOR) were enhanced, similarly to the positive control of ER stress and/or the autophagy controls. Such enhancement is a protective mechanism for cell survival. Additionally, the COX-2 levels increased. Moreover, when COX-2 was inhibited, the PERK level remained high, whereas the LC3-II level decreased. This finding suggests that COX-2 specifically affects the interaction between ER stress and autophagy. Notably, this study reveals that Cr(VI) can induce ER stress and autophagy in DF-1 cells and that COX-2 plays an essential role in the interaction between ER stress and autophagy.
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Affiliation(s)
- Peng Chen
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, PR China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Taian City, Shandong Province 271018, PR China
| | - Na Geng
- Research Center for Animal Disease Control Engineering Shandong Province, Shandong Agricultural University, Tai'an 271018, PR China
| | - Dong Zhou
- College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, PR China
| | - Yiran Zhu
- Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, 61 Daizong Street, Taian City, Shandong Province 271018, PR China
| | - Yuliang Xu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, PR China
| | - Kangping Liu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, PR China
| | - Yongxia Liu
- Research Center for Animal Disease Control Engineering Shandong Province, Shandong Agricultural University, Tai'an 271018, PR China.
| | - Jianzhu Liu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, PR China.
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Berisha B, Rodler D, Schams D, Sinowatz F, Pfaffl MW. Prostaglandins in Superovulation Induced Bovine Follicles During the Preovulatory Period and Early Corpus Luteum. Front Endocrinol (Lausanne) 2019; 10:467. [PMID: 31354631 PMCID: PMC6635559 DOI: 10.3389/fendo.2019.00467] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/27/2019] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to characterize the regulation pattern of prostaglandin family members namely prostaglandin F2alpha (PTGF), prostaglandin E2 (PTGE), their receptors (PTGFR, PTGER2, PTGER4), cyclooxygenase 2 (COX-2), PTGF synthase (PTGFS), and PTGE synthase (PTGES) in the bovine follicles during preovulatory period and early corpus luteum (CL). Ovaries containing preovulatory follicles or CL were collected by transvaginal ovariectomy (n = 5 cows/group), and the follicles were classified: (I) before GnRH treatment; (II) 4 h after GnRH; (III) 10 h after GnRH; (IV) 20 h after GnRH; (V) 25 h after GnRH, and (VI) 60 h after GnRH (early CL). In these samples, the concentrations of progesterone (P4), estradiol (E2), PTGF and PTGE were investigated in the follicular fluid (FF) by validated EIA. Relative mRNA abundance of genes encoding for prostaglandin receptors (PTGFR, PTGER2, PTGER4), COX-2, PTGFS and PTGES were quantified by RT-qPCR. The localization of COX-2 and PTGES were investigated by established immunohistochemistry in fixed follicular and CL tissue samples. The high E2 concentration in the FF of the follicle group before GnRH treatment (495.8 ng/ml) and during luteinizing hormone (LH) surge (4 h after GnRH, 574.36 ng/ml), is followed by a significant (P<0.05) downregulation afterwards with the lowest level during ovulation (25 h after GnRH, 53.11 ng/ml). In contrast the concentration of P4 was very low before LH surge (50.64 mg/ml) followed by a significant upregulation (P < 0.05) during ovulation (537.18 ng/ml). The mRNA expression of COX-2 increased significantely (P < 0.05) 4 h after GnRH and again 20 h after GnRH, followed by a significant decrease (P < 0.05) after ovulation (early CL). The mRNA of PTGFS in follicles before GnRH was high followed by a continuous and significant downregulation (P < 0.05) afterwards. In contrast, PTGES mRNA abundance increased significantely (P < 0.05) in follicles 20 h after GnRH treatment and remained high afterwards. The mRNA abundance of PTGFR, PTGER2, and PTGER4 in follicles before GnRH was high, followed by a continuous and significant down regulation afterwards and significant increase (P < 0.05) only after ovulation (early CL). The low concentration of PTGF (0.04 ng/ml) and PTGE (0.15 ng/ml) in FF before GnRH, increased continuously in follicle groups before ovulation and displayed a further significant and dramatic increase (P < 0.05) around ovulation (101.01 ng/ml, respectively, 484.21 ng/ml). Immunohistochemically, the granulosa cells showed an intensive signal for COX-2 and PTGES in follicles during preovulation and in granulosa-luteal cells of the early CL. In conclusion, our results indicate that the examined bovine prostaglandin family members are involved in the local mechanisms regulating final follicle maturation and ovulation during the folliculo-luteal transition and CL formation.
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Affiliation(s)
- Bajram Berisha
- Department of Animal Biotechnology, Faculty of Agriculture and Veterinary, University of Prishtina, Pristina, Kosovo
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
- *Correspondence: Bajram Berisha
| | - Daniela Rodler
- Department of Veterinary Sciences, Ludwig Maximilian University of Munich, Munich, Germany
| | - Dieter Schams
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Fred Sinowatz
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
| | - Michael W. Pfaffl
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich, Munich, Germany
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Nemer A, Azab AN, Rimon G, Lamprecht S, Ben-Menahem D. Different roles of cAMP/PKA and PKC signaling in regulating progesterone and PGE 2 levels in immortalized rat granulosa cell cultures. Gen Comp Endocrinol 2018; 269:88-95. [PMID: 30144443 DOI: 10.1016/j.ygcen.2018.08.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/14/2018] [Accepted: 08/21/2018] [Indexed: 10/28/2022]
Abstract
Follicular cells from various species secrete steroids and prostaglandins, which are crucial for reproduction, in response to gonadotropins. Here, we examined prostaglandin E2 (PGE2) secretion from immortalized rat granulosa cells derived from preovulaotry follicles expressing the rat follicle stimulating hormone receptor (denoted as FSHR cells) that produce progesterone in response to gonadotropins. The cells were stimulated with a) pregnant mare's serum gonadotropin (PMSG; a rat FSH receptor agonist), b) activators of the protein kinase A (PKA) pathway (forskolin and a cell permeable cAMP analog Dibutyryl-cAMP (DB-cAMP)) and c) protein kinase C (PKC) (12-O-tetradecanoylphorbol 13-acetate; TPA), alone and in combination for 24 h. Thereafter, PGE2 and progesterone levels in the culture media were determined. In accordance with previous studies, while PMSG and the PKA pathway activators induced progesterone accumulation in the media, TPA did not. In contrast, our data indicate that TPA, but neither PMSG, forskolin and DB-cAMP evoked PGE2 accumulation in the media. Western Blot analysis of cell lysate showed a drastic TPA induced increase of COX-2 levels, which was not seen with neither PMSG nor forskolin treatment. This association between the COX-2 and PGE2 levels suggests that the enzyme activity is the likely factor that determines the synthesis and levels of the prostaglandin in the culture media of the granulosa-derived cells. The addition of the PKA inhibitor H-89 to the FSHR cultures suppressed the gonadotropin and forskolin induction of progesterone secretion. Incubation in the presence of GF109203X (a PKC inhibitor) attenuated the TPA induced PGE2 accumulation in the culture media of the cells (a dose dependent reduction of 40-70%). In addition, while TPA inhibited the PMSG and forskolin induced-accumulation of progesterone in the media, the gonadotropin and forskolin inhibited the elevation of PGE2 levels evoked by TPA (a dose dependent decrease of 35-55%). These data suggest that cAMP/PKA and PKC signaling have opposite effects on PGE2 and progesterone synthesis in FSHR cells. We propose that this PKA and PKC interplay on progesterone and PGE2 may be advantageous for the coordination of these key mediators for successful ovulation and luteinization.
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Affiliation(s)
- Ala Nemer
- Dept. of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Abed N Azab
- Dept. of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Gilad Rimon
- Dept. of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sergio Lamprecht
- Dept. of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - David Ben-Menahem
- Dept. of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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TRIPATHI MK, MONDAL S, MOR A, REDDY IJ. Effect of oxytocin on in vitro prostaglandin production and expression of PGFS and PGES mRNAs in buffalo corpus luteum. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2018. [DOI: 10.56093/ijans.v88i10.84082] [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
The present study investigated the effect of various doses of oxytocin on in vitro PGF2α and PGE2 production and expression profiling of PGFS and PGES mRNA in buffalo CL. Buffalo ovaries with mid-luteal phase CL were collected from the abattoir and CL was separated from surrounding tissues, chopped, rinsed with HBSS medium supplemented with gentamicin and BSA and incubated at 37°C for 1 h in HBSS containing collagenase. The cell suspension following filtration was treated with increasing doses of oxytocin (1, 10, 102, 103 and 104 ng/ml) and cultured at 38.5ºC, 5% CO2 level for 24 h. The production of PGF2α and PGE2 were not significantly different among different treatment groups as compared to control. The expression of PGES and PGFS mRNAs were not significantly different among different treatment groups as compared to control. It can be concluded that oxytocin may not directly stimulate PGF2α and PGE2 production in mid-luteal stage buffalo corpus luteum.
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Shrestha K, Meidan R. The cAMP-EPAC Pathway Mediates PGE2-Induced FGF2 in Bovine Granulosa Cells. Endocrinology 2018; 159:3482-3491. [PMID: 30085093 DOI: 10.1210/en.2018-00527] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/26/2018] [Indexed: 01/10/2023]
Abstract
During the periovulatory period, the profile of fibroblast growth factor 2 (FGF2) coincides with elevated prostaglandin E2 (PGE2) levels. We investigated whether PGE2 can directly stimulate FGF2 production in bovine granulosa cells and, if so, which prostaglandin E2 receptor (PTGER) type and signaling cascades are involved. PGE2 temporally stimulated FGF2. Accordingly, endoperoxide-synthase2-silenced cells, exhibiting low endogenous PGE2 levels, had reduced FGF2. Furthermore, elevation of viable granulosa cell numbers by PGE2 was abolished with FGF2 receptor 1 inhibitor, suggesting that FGF2 mediates this action of PGE2. Epiregulin (EREG), a known PGE2-inducible gene, was studied alongside FGF2. PTGER2 agonist elevated cAMP as well as FGF2 and EREG levels. However, a marked difference between cAMP-induced downstream signaling was observed for FGF2 and EREG. Whereas FGF2 upregulated by PGE2, PTGER2 agonist, or forskolin was unaffected by the protein kinase A (PKA) inhibitor H89, EREG was significantly inhibited. FGF2 was dose-dependently stimulated by the exchange protein directly activated by cAMP (EPAC) activator; a similar induction was observed for EREG. However, forskolin-stimulated FGF2, but not EREG, was inhibited in EPAC1-silenced cells. These findings ascribe a novel autocrine role for PGE2, namely, elevating FGF2 production in granulosa cells. This study also reveals that cAMP-activated EPAC1, rather than PKA, mediates the effect of PGE2/PTGER2 on the expression of FGF2. Stimulation of EREG by PGE2 is also mediated by PTGER2 but, in contrast to FGF2, EREG was found to be PKA sensitive. PGE2-stimulated FGF2 can act to maintain granulosa cell survival; it can also act on ovarian endothelial cells to promote angiogenesis.
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Affiliation(s)
- Ketan Shrestha
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Rina Meidan
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
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Szymanska M, Blitek A. Prostacyclin synthesis and prostacyclin receptor expression in the porcine corpus luteum: evidence for a luteotropic role in vitro†. Biol Reprod 2018; 100:162-174. [DOI: 10.1093/biolre/ioy178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 08/01/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Magdalena Szymanska
- Department of Hormonal Action Mechanisms, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
| | - Agnieszka Blitek
- Department of Hormonal Action Mechanisms, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
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Chang J, Frandsen S, D’Annibale-Tolhurst M, Palumbo N, Gadsby J. Prostaglandin (PTG) E and F receptors in the porcine corpus luteum; effect of tumor necrosis factor-α. Anim Reprod Sci 2018; 195:139-148. [DOI: 10.1016/j.anireprosci.2018.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 01/22/2023]
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Verma AK, Mahla AS, Chaudhari RK, Singh AK, Khatti A, Singh SK, Dutta N, Singh G, Sarkar M, Kumar H, Yadav D, Krishnaswamy N. Effect of different levels of n-3 polyunsaturated fatty acids rich fish oil supplementation on the ovarian and endometrial functions in the goat (Capra hircus). Anim Reprod Sci 2018; 195:153-161. [DOI: 10.1016/j.anireprosci.2018.05.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 05/15/2018] [Accepted: 05/22/2018] [Indexed: 10/16/2022]
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Berisha B, Schams D, Rodler D, Sinowatz F, Pfaffl MW. Changes in the expression of prostaglandin family members in bovine corpus luteum during the estrous cycle and pregnancy. Mol Reprod Dev 2018; 85:622-634. [DOI: 10.1002/mrd.22999] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 06/04/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Bajram Berisha
- Department of Animal Biotechnology; Faculty of Agriculture and Veterinary, University of Prishtina; Pristina Kosovo
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich; Munich Germany
| | - Dieter Schams
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich; Munich Germany
| | - Daniela Rodler
- Department of Veterinary Sciences; Ludwig Maximilian University of Munich; Munich Germany
| | - Fred Sinowatz
- Department of Veterinary Sciences; Ludwig Maximilian University of Munich; Munich Germany
| | - Michael W. Pfaffl
- Animal Physiology and Immunology Weihenstephan, Technical University of Munich; Munich Germany
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Xiao L, Hu J, Zhao X, Song L, Zhang Y, Dong W, Zhang Q, Ma Y, Li F. Expression of melatonin and its related synthase and membrane receptors in the oestrous corpus luteum and corpus luteum verum of sheep. Reprod Domest Anim 2018; 53:1142-1148. [DOI: 10.1111/rda.13218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/03/2018] [Accepted: 05/19/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Longfei Xiao
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Junjie Hu
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Xingxu Zhao
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Liangli Song
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Yong Zhang
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Weitao Dong
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Quanwei Zhang
- College of Life Science and Technology; Gansu Agricultural University; Lanzhou China
| | - Youji Ma
- College of Animal Science and Technology; Gansu Agricultural University; Lanzhou China
| | - Fadi Li
- College of Animal Science and Technology; Gansu Agricultural University; Lanzhou China
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Effect of multiple low-dose PGF2α injections on the mature corpus luteum in non-pregnant bitches. Theriogenology 2018; 113:34-43. [DOI: 10.1016/j.theriogenology.2018.01.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 01/23/2018] [Accepted: 01/23/2018] [Indexed: 11/19/2022]
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50
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Liu W, Wang S, Zhou J, Pang X, Wang L. RNAi-mediated knockdown of MTNR1B without disrupting the effects of melatonin on apoptosis and cell cycle in bovine granulose cells. PeerJ 2018; 6:e4463. [PMID: 29707428 PMCID: PMC5918132 DOI: 10.7717/peerj.4463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 04/03/2018] [Indexed: 02/06/2023] Open
Abstract
Melatonin is well known as a powerful free radical scavenger and exhibits the ability to prevent cell apoptosis. In the present study, we investigated the role of melatonin and its receptor MTNR1B in regulating the function of bovine granulosa cells (GCs) and hypothesized the involvement of MTNR1B in mediating the effect of melatonin on GCs. Our results showed that MTNR1B knockdown significantly promoted GCs apoptosis but did not affect the cell cycle. These results were further verified by increasing the expression of pro-apoptosis genes (BAX and CASP3), decreasing expression of the anti-apoptosis genes (BCL2 and BCL-XL) and anti-oxidant genes (SOD1 and GPX4) without affecting cell cycle factors (CCND1, CCNE1 and CDKN1A) and TP53. In addition, MTNR1B knockdown did not disrupt the effects of melatonin in suppressing the GCs apoptosis or blocking the cell cycle. Moreover, MTNR1B knockdown did not affect the role of melatonin in increasing BCL2, BCL-XL, and CDKN1A expression, or decreasing BAX, CASP3, TP53, CCND1 and CCNE1 expression. The expression of MTNR1A was upregulated after MTNR1B knockdown, and melatonin promoted MTNR1A expression with or without MTNR1B knockdown. However, despite melatonin supplementation, the expression of SOD1 and GPX4 was still suppressed after MTNR1B knockdown. In conclusion, these findings indicate that melatonin and MTNR1B are involved in BCL2 family and CASP3-dependent apoptotic pathways in bovine GCs. MTNR1A and MTNR1B may coordinate the work of medicating the appropriate melatonin responses to GCs.
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Affiliation(s)
- Wenju Liu
- College of Animal Science, Anhui Science and Technology University, Fengyang, Anhui, China.,Cell and Molecular Biology Research Center, Anhui Science and Technology University, Fengyang, AnHui, China
| | - Shujuan Wang
- College of Animal Science, Anhui Science and Technology University, Fengyang, Anhui, China
| | - Jinxing Zhou
- College of Animal Science, Anhui Science and Technology University, Fengyang, Anhui, China.,Cell and Molecular Biology Research Center, Anhui Science and Technology University, Fengyang, AnHui, China
| | - Xunsheng Pang
- College of Animal Science, Anhui Science and Technology University, Fengyang, Anhui, China
| | - Like Wang
- College of Animal Science, Anhui Science and Technology University, Fengyang, Anhui, China
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