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Rumen-protected glucose stimulates the secretion of reproductive hormones and the mTOR/AKT signaling pathway in the ovaries of early postpartum. Sci Rep 2023; 13:2940. [PMID: 36808140 PMCID: PMC9941576 DOI: 10.1038/s41598-023-30170-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
This study was conducted to determine the response of the reproductive hormones and the mTOR/AKT/PI3K pathway in the ovaries of postpartum dairy cows with dietary rumen-protected glucose (RPG). Twelve Holstein cows were randomly assigned to two groups (n = 6/group): the control group (CT) and the RPG group. Blood samples were collected on d 1, 7, and 14 after calving for the gonadal hormone assay. The expression of the gonadal hormones receptors and PI3K/mTOR/AKT pathways were detected using RT-PCR and Western blot. The RPG addition increased the plasma LH, E2, and P4 concentrations on d 14 after calving and upregulated the mRNA and protein expressions of the ERα, ERβ, 17β-HSD, FSHR, LHR, and CYP17A1 but downregulated StAR expression. Immunohistochemical analysis identified higher expressions of the FSHR and LHR in the ovaries of RPG-fed cows compared to CT cows. Furthermore, the protein expressions of p-AKT/AKT and p-mTOR/mTOR were significantly increased in the ovaries of RPG-fed cows compared to the CT group, but the addition of RPG did not alter the protein expression of p-PI3K/PI3K. In conclusion, the current results indicated that dietary RPG supplementation regulated gonadotropin secretion and stimulated expression of hormone receptors and the mTOR/AKT pathway in the ovaries of early postpartum dairy cows. RPG may be beneficial for the recovery of ovarian activity in post-calving dairy cows.
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Gareis NC, Rodríguez FM, Cattaneo Moreyra ML, Stassi AF, Angeli E, Etchevers L, Salvetti NR, Ortega HH, Hein GJ, Rey F. Contribution of key elements of nutritional metabolism to the development of cystic ovarian disease in dairy cattle. Theriogenology 2023; 197:209-223. [PMID: 36525860 DOI: 10.1016/j.theriogenology.2022.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/28/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
The alteration of signaling molecules involved in the general metabolism of animals can negatively influence reproduction. In dairy cattle, the development of follicular cysts and the subsequent appearance of ovarian cystic disease (COD) often lead to decreased reproductive efficiency in the herd. The objective of this review is to summarize the contribution of relevant metabolic and nutritional sensors to the development of COD in dairy cows. In particular, we focus on the study of alterations of the insulin signaling pathway, adiponectin, and other sensors and metabolites relevant to ovarian functionality, which may be related to the development of follicular persistence and follicular formation of cysts in dairy cattle. The results of these studies support the hypothesis that systemic factors could alter the local scenario in the follicle, generating an adverse microenvironment for the resumption of ovarian activity and possibly leading to the persistence of follicles and to the development and recurrence of COD.
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Affiliation(s)
- N C Gareis
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - F M Rodríguez
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - M L Cattaneo Moreyra
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina
| | - A F Stassi
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - E Angeli
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - L Etchevers
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - N R Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - H H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - G J Hein
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Centro Universitario Gálvez (CUG-UNL), Gálvez, Santa Fe, Argentina
| | - F Rey
- Laboratorio de Biología Celular y Molecular Aplicada, ICiVet-Litoral (UNL-CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias - Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina.
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Shirafuta Y, Tamura I, Ohkawa Y, Maekawa R, Doi-Tanaka Y, Takagi H, Mihara Y, Shinagawa M, Taketani T, Sato S, Tamura H, Sugino N. Integrated Analysis of Transcriptome and Histone Modifications in Granulosa Cells During Ovulation in Female Mice. Endocrinology 2021; 162:6309636. [PMID: 34171084 DOI: 10.1210/endocr/bqab128] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Indexed: 12/14/2022]
Abstract
The ovulatory luteinizing hormone (LH) surge induces rapid changes of gene expression and cellular functions in granulosa cells (GCs) undergoing luteinization. However, it remains unclear how the changes in genome-wide gene expression are regulated. H3K4me3 histone modifications are involved in the rapid alteration of gene expression. In this study, we investigated genome-wide changes of transcriptome and H3K4me3 status in mouse GCs undergoing luteinization. GCs were obtained from mice treated with equine chorionic gonadotropin (hCG) before, 4 hours, and 12 hours after human chorionic gonadotropin injection. RNA-sequencing identified a number of upregulated and downregulated genes, which could be classified into 8 patterns according to the time-course changes of gene expression. Many genes were transiently upregulated or downregulated at 4 hours after hCG stimulation. Gene Ontology terms associated with these genes included steroidogenesis, ovulation, cumulus-oocyte complex (COC) expansion, angiogenesis, immune system, reactive oxygen species (ROS) metabolism, inflammatory response, metabolism, and autophagy. The cellular functions of DNA repair and cell growth were newly identified as being activated during ovulation. Chromatin immunoprecipitation-sequencing revealed a genome-wide and rapid change in H3K4me3 during ovulation. Integration of transcriptome and H3K4me3 data identified many H3K4me3-associated genes that are involved in steroidogenesis, ovulation, COC expansion, angiogenesis, inflammatory response, immune system, ROS metabolism, lipid and glucose metabolism, autophagy, and regulation of cell size. The present results suggest that genome-wide changes in H3K4me3 after the LH surge are associated with rapid changes in gene expression in GCs, which enables GCs to acquire a lot of cellular functions within a short time that are required for ovulation and luteinization.
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Affiliation(s)
- Yuichiro Shirafuta
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Isao Tamura
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Yasuyuki Ohkawa
- Division of Transcriptomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Ryo Maekawa
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Yumiko Doi-Tanaka
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Haruka Takagi
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Yumiko Mihara
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Masahiro Shinagawa
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Toshiaki Taketani
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Shun Sato
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Hiroshi Tamura
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
| | - Norihiro Sugino
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Japan
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Liu X, Zhang P, Li Y, Zhao N, Han H. The AMPK-mTOR axis requires increased MALAT1 expression for promoting granulosa cell proliferation in endometriosis. Exp Ther Med 2021; 21:21. [PMID: 33235630 PMCID: PMC7678598 DOI: 10.3892/etm.2020.9453] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 08/12/2020] [Indexed: 02/07/2023] Open
Abstract
Endometriosis is a common reproductive disorder in women, with a global prevalence of 10-15%. Long noncoding RNAs (lncRNAs) are critical to gene transcription, cell cycle modulation and immune response. The lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) reportedly mediates autophagy of endometrial stromal cells in endometriosis. The present study aimed to evaluate the role and mechanism of MALAT1 in granulosa cells (GCs) in endometriosis. Consequently, MALAT1 expression was upregulated in GCs obtained from patients with endometriosis and in the steroidogenic human granulosa-like tumor cell line KGN. However, MALAT1 knockdown consequently decreased the proliferation and viability of these cells, as determined by MTT and 5-ethynyl-2'-deoxyuridine staining assays. Both Annexin V-fluorescein isothiocyanate/propidium iodide flow cytometry and western blotting performed to detect proapoptotic factors indicated that MALAT1 depletion might promote KGN cell apoptosis. Furthermore, MALAT1 knockdown increased GC autophagy, as evidenced by microtubule-associated protein 1A/1B-light chain 3 (LC3) cleavage upregulation and p62 degradation. In addition, although 5'-AMP-activated protein kinase (AMPK) mRNA expression and protein levels decreased in GCs obtained from patients with endometriosis and KGN cells, MALAT1 knockdown restored AMPK levels. However, addition of BML-275 (MALAT1 inhibitor) to MALAT1-knockdown KGN cells recovered their viability and proliferative capacity and simultaneously reduced their apoptotic and autophagic capacity. Therefore, MALAT1 may regulate GC proliferation via AMPK-mTOR-mediated cell apoptosis and autophagy.
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Affiliation(s)
- Xuejie Liu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261000, P.R. China
| | - Ping Zhang
- Department of Obstetrics, Zhucheng People's Hospital, Zhucheng, Shandong 262200, P.R. China
| | - Yanmin Li
- Department of Obstetrics and Gynecology, Liaocheng Second People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Na Zhao
- Department of Obstetrics and Gynecology, Dezhou People's Hospital, Dezhou, Shandong 253000, P.R. China
| | - Haiyan Han
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261000, P.R. China
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Dos Santos JT, De Cesaro MP, Ferst JG, Pereira Dau AM, da Rosa PRA, Pasqual BM, Antoniazzi AQ, Gasperin BG, Bordignon V, Gonçalves PBD. Luteinizing hormone upregulates NPPC and downregulates NPR3 mRNA abundance in bovine granulosa cells through activation of the EGF receptor. Theriogenology 2018; 119:28-34. [PMID: 29960164 DOI: 10.1016/j.theriogenology.2018.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/25/2018] [Accepted: 06/17/2018] [Indexed: 12/14/2022]
Abstract
During folliculogenesis, the luteinizing hormone (LH) surge triggers dynamic events in granulosa cells that culminate with ovulation. The aim of this study was to evaluate if the epidermal growth factor receptor (EGFR) is required for ovulation in cattle, and if it regulates the expression of the natriuretic peptide (NP) system in granulosa cells after gonadotropin-releasing hormone (GnRH)/LH stimulation. It was observed that GnRH induces amphiregulin (AREG) and epiregulin (EREG) mRNA at 3 and 6 h after in vivo treatment, but the expression of these genes was not regulated by atrial (ANP) and C-type (CNP) NPs in granulosa cells cultured in vitro. The abundance of mRNA encoding the NP receptors (NPR1, 2 and 3) was not altered by LH supplementation and/or EGFR inhibition (AG1478; AG) in granulosa cells after 6 h of in vitro culture. However, in the same conditions, mRNA encoding the natriuretic peptide precursor C (NPPC) was upregulated by LH, whereas AG (0.5 and 5 μM) inhibited the LH effect. In order to confirm those results, 5 μM AG or saline were intrafollicularly injected in preovulatory follicles and cows were simultaneously treated with GnRH intramuscularly. Granulosa cells harvested at 6 h after GnRH injection revealed higher NPR3 and lower NPPC mRNA levels in AG-treated, compared to control cows. However, intrafollicular injection of AG did not inhibit GnRH-induced ovulation. In granulosa cells cultured in vitro, ANP associated with LH increased prostaglandin-endoperoxide synthase 2 (PTGS2) mRNA abundance. In conclusion, we inferred that LH modulated NPPC and NPR3 mRNA abundance through EGFR in bovine granulosa cells, but ovulation in cattle did not seem to depend on EGFR activation.
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Affiliation(s)
- Joabel T Dos Santos
- Federal Institute of Education, Science and Technology of Rio Grande do Sul (IFRS), Frederico Westphalen, Brazil
| | - Matheus P De Cesaro
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil; Faculty of Veterinary Medicine, Meridional Institute (IMED), Passo Fundo, RS, Brazil; Department of Animal Science, McGill University, Sainte Anne de Bellevue, QC, Canada
| | - Juliana G Ferst
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Andressa M Pereira Dau
- Federal Institute of Education, Science and Technology of Rio Grande do Sul (IFRS), Rolante, Brazil
| | - Paulo R A da Rosa
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Bruno M Pasqual
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Alfredo Q Antoniazzi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Bernardo G Gasperin
- Department of Animal Pathology, Federal University of Pelotas, Capão do Leão, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, QC, Canada.
| | - Paulo B D Gonçalves
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria, Santa Maria, RS, Brazil
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Gareis N, Huber E, Hein G, Rodríguez F, Salvetti N, Angeli E, Ortega H, Rey F. Impaired insulin signaling pathways affect ovarian steroidogenesis in cows with COD. Anim Reprod Sci 2018; 192:298-312. [DOI: 10.1016/j.anireprosci.2018.03.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 03/14/2018] [Accepted: 03/28/2018] [Indexed: 01/28/2023]
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