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Zhang R, Pan Y, Wang M, Wang J, Zhang T, Zhao L, Xu R, Wang Y, Han X, Ye X, Cui Y, Yu S. CIRBP Increases the synthesis and secretion of steroid hormones by in yak granulaso cells. J Steroid Biochem Mol Biol 2024; 238:106449. [PMID: 38143009 DOI: 10.1016/j.jsbmb.2023.106449] [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: 09/07/2023] [Revised: 11/27/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
As a regulatory protein that upregulates transcription in response to various stresses, cold-induced RNA-binding protein (CIRBP) is involved in a variety of physiological pathological processes in cells. However, little is known about the role of CIRBP in regulating autophagy and the synthesis and secretion of ovarian steroid hormones (estradiol E2 and progesterone P4). This study aimed to explore whether the synthetic secretion of ovarian steroid hormones is related to CIRBP-regulated autophagy. We detected the differential expression of CIRBP, LC3, E2 and P4 in YGCs cultured at mild low temperature (32 °C) for 6 and 12 h. CIRBP, LC3, E2 and P4 expression was increased in response to low temperature in YGCs. In order to illustrate that the changes in secretion of E2/P4 and autophagy might be caused by CIRBP induced by low temperature, we overexpressed CIRBP in YGCs cultured in vitro to detect its effects on autophagy and steroid hormone synthesis and secretion. We found that overexpression of CIRBP can induce autophagy of YGCs and enhance the synthesis and secretion of E2 and P4, suggesting that mild hypothermia may activate autophagy by inducing the expression of CIRBP and enhance the synthesis and secretion of E2 and P4. To further explore the relationship between CIRBP regulated autophagy and steroid hormone synthesis and secretion, we verified it by regulating autophagy. The results showed that Inhibition of autophagy significantly reversed CIRBP overexpression-enhanced autophagy and synthetic secretion of E2, P4 in YGCs, while activated autophagy showed similar results to overexpression of CIRBP. In conclusion, our data suggest that autophagy is involved in the synthesis and secretion of YGCs E2 and P4 and is associated with overexpression of CIRBP.
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Affiliation(s)
- Rui Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Yangyang Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Meng Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Jinglei Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Tongxiang Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Ling Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Ruihua Xu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Yaying Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Xiaohong Han
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Xiaolin Ye
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Yan Cui
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Sijiu Yu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China; Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China.
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2
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Zhang P, Zhang C, Yao X, Xie Y, Zhang H, Shao X, Yang X, Nie Q, Ye J, Wu C, Mi H. Selenium yeast improve growth, serum biochemical indices, metabolic ability, antioxidant capacity and immunity in black carp Mylopharyngodnpiceus. FISH & SHELLFISH IMMUNOLOGY 2024; 146:109414. [PMID: 38296006 DOI: 10.1016/j.fsi.2024.109414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/01/2024] [Accepted: 01/28/2024] [Indexed: 02/09/2024]
Abstract
This experiment was conducted to investigate the impacts of dietary selenium yeast (SeY) on the growth performance, fish body composition, metabolic ability, antioxidant capability, immunity and inflammatory responses in juvenile black carp (Mylopharyngodn piceus). The base diet was supplemented with 0.00, 0.30 and 0.60 g/kg SeY (0.04, 0.59 and 1.15 mg/kg of selenium) to form three isonitrogenous and isoenergetic diets for juvenile black carp with a 60-day. Adequate dietary SeY (0.30 and 0.60 g/kg) could significantly increase the weight gain (WG), special growth rate (SGR) compared to the SeY deficient groups (0.00 g/kg) (P < 0.05). Meanwhile, 0.30 and 0.60 g/kg SeY elevated the mRNA levels of selenoprotein T2 (SEPT2), selenoprotein H (SEPH), selenoprotein S (SEPS) and selenoprotein M (SEPM) in the liver and intestine compared with the SeY deficient groups (P < 0.05). Adequate dietary SeY could promote glucose catabolism and utilization through activating glucose transport (GLUT2), glycolysis (GCK, HK, PFK, PK, PDH), tricarboxylic acid cycle (ICDH and MDH), glycogen synthesis (LG, GCS and GBE) and IRS/PI3K/AKT signal pathway molecules (IRS2b, PI3Kc and AKT1) compared with the SeY deficient groups (P < 0.05). Similarly, adequate dietary SeY could improve lipid transport and triglycerides (TG) synthesis through increasing transcription amounts of CD36, GK, DGAT, ACC and FAS in the fish liver compared with the SeY deficient groups (P < 0.05). In addition, adequate SeY could markedly elevate activities of antioxidant enzymes (T-SOD, CAT, GR, GPX) and contents of T-AOC and GSH, while increased transcription amounts of Nrf2, Cu/Zn-SOD, CAT, and GPX in fish liver and intestine (P < 0.05). However, adequate SeY notably decreased contents of MDA, and the mRNA transcription levels of Keap1 in the intestine compared with the SeY deficient groups (P < 0.05). Adequate SeY markedly increased amounts or levels of the immune factors (ALP, ACP, LZM, C3, C4 and IgM) and the transcription levels of innate immune-related functional genes in the liver and intestine (LZM, C3 and C9) compared to the SeY deficient groups (P < 0.05). Moreover, adequate SeY could notably reduce levels of IL-8, IL-1β, and IFN-γ and elevate TGF-1β levels in fish intestine (P < 0.05). The transcription levels of MAPK13, MAPK14 and NF-κB p65 were notably reduced in fish intestine treated with 0.30 and 0.60 g/kg SeY (P < 0.05). In conclusion, these results suggested that 0.30 and 0.60 g/kg SeY could not only improve growth performance, increase Se, glucose and lipid metabolic abilities, enhance antioxidant capabilities and immune responses, but also alleviate inflammation, thereby supplying useful reference for producing artificial feeds in black carp.
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Affiliation(s)
- Penghui Zhang
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Chen Zhang
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Xinfeng Yao
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Yuanyuan Xie
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Hao Zhang
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Xianping Shao
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Xia Yang
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Qin Nie
- The Hubei Provincial Key Laboratory of Yeast Function, Angel Yeast Co., Ltd, 168 Chengdong Avenue, Yichang, 443000, China
| | - Jinyun Ye
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China
| | - Chenglong Wu
- National-Local Joint Engineering Laboratory of Aquatic Animal Genetic Breeding and Nutrition (Zhejiang), School of Life Science, Huzhou University, 759 East 2nd Road, Huzhou, 313000, China.
| | - Haifeng Mi
- Healthy Aquaculture Key Laboratory of Sichuan Province, Tongwei Co, Ltd, 588 Tianfu Avenue, Chengdu, 610093, China.
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Carvalho RPR, Carvalho IRD, Costa RVD, Guimarães-Ervilha LO, Machado-Neves M. The effects of eugenol on histological, enzymatic, and oxidative parameters in the major salivary glands and pancreas of healthy male Wistar rats. Arch Oral Biol 2023; 154:105764. [PMID: 37454526 DOI: 10.1016/j.archoralbio.2023.105764] [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: 04/19/2023] [Revised: 06/28/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVE We evaluated the effects of eugenol on histological, enzymatic, and oxidative parameters in the pancreas, parotid, submandibular, and sublingual glands of healthy male rats. DESIGN Twenty-four adult Wistar rats were assigned into four groups (n = 6/group). Control rats received 2% Tween-20 (eugenol vehicle), whereas the other animals received 10, 20, and 40 mg kg-1 eugenol through gavage daily for 60 d. Major salivary and pancreatic glands were weighed and preserved fixed for microscopic analysis and frozen for in vitro assays. RESULTS Eugenol did not alter glands' weight and serum amylase activity regardless of the concentration. The highest dose of eugenol caused an increase in pancreatic amylase activity and a reduction of lipase activity from serum and pancreas. Eugenol at 40 mg kg-1 diminished the activity of SOD and FRAP in the submandibular gland and CAT and FRAP in the sublingual gland. However, it did not exert any effect on GST regardless of the gland. Additionally, 40 mg kg-1 eugenol increased MDA levels in pancreatic, parotid, and submandibular glands and NO levels in the sublingual. The concentrations of eugenol induced distinct responses in the glands regarding the activity of Na+/K+, Mg2+, and total ATPase activity. They also affected histomorphometrical and histochemistrical parameters in the submandibular gland only. CONCLUSIONS Results indicated that 40 mg kg-1 eugenol altered most of the biochemical and oxidatived parameters of digestive glands. Only submandibular glands presented histological changes after eugenol exposure suggesting potential implications for its function.
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Affiliation(s)
| | | | - Rosiany Vieira da Costa
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Mariana Machado-Neves
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
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Fan C, Liu Y, Wang Y, Zhang A, Xie W, Zhang H, Weng Q, Xu M. Expression of glycogenic genes in the oviduct of Chinese brown frog (Rana dybowskii) during pre-brumation. Theriogenology 2022; 185:78-87. [DOI: 10.1016/j.theriogenology.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
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5
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Knezevic S, Ghafoor A, Mehri S, Barazi A, Dziura M, Trant JF, Dieni CA. Catechin and other catechol-containing secondary metabolites: Bacterial biotransformation and regulation of carbohydrate metabolism. PHARMANUTRITION 2021. [DOI: 10.1016/j.phanu.2021.100273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Sandoval K, Berg MD, Guadagnin AR, Cardoso FC, Dean M. Endometrial glycogen metabolism on days 1 and 11 of the reproductive cycle in dairy cows. Anim Reprod Sci 2021; 233:106827. [PMID: 34450335 DOI: 10.1016/j.anireprosci.2021.106827] [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: 12/27/2020] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 10/20/2022]
Abstract
Embryos need glucose or fructose to remain viable; however, it is not well understood how secretion of these carbohydrates is regulated. This study was conducted to evaluate endometrial glycogen and associated enzymes on Days 1 and 11 of the estrous cycle (Day 0 = behavioral estrus) in cattle. Diastase-liable periodic acid-Schiff (PAS) staining of luminal epithelia decreased 81 % between Days 1 and 11. Similarly, glycogen content of glandular epithelia was 66 % less on Day 11 than Day 1. There was dense PAS staining in the lumen of some glands, and this staining was removed when there was pretreatment with diastase. Based on western blot results, there was no difference in glycogen metabolizing enzymes between Days 1 and 11. Results from conducting immunohistochemistry procedures indicated hexokinase 1 was more abundant in the epithelial cells than stroma, but immunostaining was not different between Day 1 and 11. In contrast, phospho-glycogen synthase was undetectable on Day 1 but was present in glandular epithelia on Day 11. Glycogen synthase was localized to the epithelia, and was in larger abundance on Day 1. The abundance of glycogen phosphorylase was greater in the epithelium than stroma and on Day 11 than 1. Furthermore, glucose-6-phosphatase 3 was more abundant in the epithelium on both Days 1 and 11. In conclusion, in the uterus of cattle glycogen is stored in a reproductive cycle-dependent manner. Glucose released from endometrial glycogen stores could potentially be utilized by the endometrium or secreted into the uterine lumen.
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Affiliation(s)
- Kassandra Sandoval
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Malia D Berg
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Anne R Guadagnin
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Felipe C Cardoso
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Matthew Dean
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States.
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Dean M. Glycogen in the uterus and fallopian tubes is an important source of glucose during early pregnancy†. Biol Reprod 2020; 101:297-305. [PMID: 31201425 DOI: 10.1093/biolre/ioz102] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/16/2019] [Accepted: 06/06/2019] [Indexed: 01/02/2023] Open
Abstract
Pregnancy loss is common during the peri-implantation period in mammals when glucose is required for both embryonic development and decidualization of the endometrium. As the uterus cannot synthesize glucose, all glucose must come directly from maternal circulation as needed or transiently stored as the macromolecule glycogen. Glycogen acts as a glucose reservoir, storing up to 55 000 glucose moieties per molecule. Endometrial glycogen concentrations are correlated with fertility in humans, indicating that glycogen is an essential source of glucose during early pregnancy. In humans and primates, endometrial glycogen concentrations peak during the luteal phase due to progesterone. In contrast, in rats and mink, estradiol triggers an accumulation of uterine glycogen during proestrus and estrus. In mated rats, the glycogen content of the endometrium increases again after implantation due to high levels of glycogen stored in the decidua. In mink, endometrial glycogen reserves are localized in the uterine epithelia at estrus. These reserves are mobilized before implantation, suggesting they are used to support embryonic growth. Uterine glycogen concentrations continue to decrease after implantation in mink, probably due to a lack of decidualization. How ovarian steroids stimulate glycogenesis in the endometrium is unclear, but current evidence suggests that estradiol/progesterone interacts with insulin or insulin-like growth factor signaling. In summary, endometrial glycogen is an essential source of glucose during the peri-implantation period. More work is needed to characterize differences among species, elucidate the fate of the glucose liberated from glycogen, and understand how ovarian steroids regulate glycogen metabolism in the uterus.
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Affiliation(s)
- Matthew Dean
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Holmlund H, Marín-Hernández Á, Chase J. Estradiol and progesterone affect enzymes but not glucose consumption in a mink uterine cell line (GMMe). Biosci Rep 2020; 40:BSR20193512. [PMID: 32239183 PMCID: PMC7182661 DOI: 10.1042/bsr20193512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 02/04/2023] Open
Abstract
Cells lining the uterus are responsible for storage and secretion of carbohydrates to support early embryonic development. Histotrophic secretions contain glycogen and glycolytic products such as lactate and pyruvate. Insufficient carbohydrate storage as glycogen has been correlated with infertility in women. While it is clear that changes in estrogen (17-β-estradiol (E2)) and progesterone (P4) in vivo affect the distribution of glucose in the uterine cells and secretions, the biochemical mechanism(s) by which they affect this crucial allocation is not well understood. Furthermore, in cultured uterine cells, neither E2 nor P4 affect glycogen storage without insulin present. We hypothesized that P4 and E2 alone affect the activity of glycolytic enzymes, glucose and glycolytic flux to increase glycogen storage (E2) and catabolism (P4) and increase pyruvate and lactate levels in culture. We measured the rate of glucose uptake and glycolysis in a mink immortalized epithelial cell line (GMMe) after 24-h exposure to 10 μM P4 and 10 nM E2 (pharmacologic levels) at 5 mM glucose and determined the kinetic parameters (Vmax, Km) of all enzymes. While the activities of many glycolytic enzymes in GMMe cells were shown to be decreased by E2 treatment, in contrast, glucose uptake, glycolytic flux and metabolites levels were not affected by the treatments. The cellular rationale for P4- and E2-induced decreases in the activity of enzymes may be to prime the system for other regulators such as insulin. In vivo, E2 and P4 may be necessary but not sufficient signals for uterine cycle carbohydrate allocation.
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Affiliation(s)
- Hayden Holmlund
- Northwest Nazarene University, 623 S. University Blvd, Nampa, ID 83686, U.S.A
| | - Álvaro Marín-Hernández
- Departamento de Bioquímica, Instituto Nacional de Cardiología, Mexico City 14080, México
| | - Jennifer R. Chase
- Northwest Nazarene University, 623 S. University Blvd, Nampa, ID 83686, U.S.A
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Hodonu A, Escobar M, Beach L, Hunt J, Rose J. Glycogen metabolism in mink uterine epithelial cells and its regulation by estradiol, progesterone and insulin. Theriogenology 2019; 130:62-70. [PMID: 30870708 DOI: 10.1016/j.theriogenology.2019.02.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 10/27/2022]
Abstract
Glycogen content in mink uterine glandular and luminal epithelia (GE and LE) is maximal during estrus and is depleted before implantation while embryos are in diapause. Uterine glycogen synthesis in vivo is stimulated by estradiol (E2) while its mobilization is induced by progesterone (P4). Nevertheless, treatment of an immortalized mink uterine epithelial cell line (GMMe) with E2 did not affect glycogen production. Interestingly, insulin alone significantly increased synthesis of the nutrient and glycogen content in response to insulin + E2 was greater than for insulin alone. Our objectives were to determine: 1) If insulin receptor protein (INSR) is expressed by mink uterine GE and LE in vivo and if the amount differs between estrus, diapause and pregnancy; 2) if E2, P4 or insulin regulate insulin receptor gene (Insr) expression by GMMe cells, and 3) if E2 and P4 act independently to regulate glycogen metabolism by GMMe cells and/or if their effects are mediated in part through the actions of insulin. The mean (±S.E.) percent INSR content of uterine epithelia was greatest during diapause (GE: 15.65 ± 0.06, LE:16.56 ± 1.25), much less during pregnancy (GE: 2.53 ± 0.60, LE:2.25 ± 0.32) and barely detectable in estrus (GE: 0.03 ± 0.01, LE:0.02 ± 0.01). Glycogen concentrations in GMMe cells increased 10-fold in response to insulin and 20-fold with insulin + E2 when compared to controls. Expression of Insr was increased 2-fold by insulin and insulin + E2 when compared to controls and there was no difference between the two hormone treatments, indicating that E2 does not increase Insr expression in insulin-treated cells. To simulate E2-priming, cells were treated with Insulin + E2 for 24 h, followed by the same hormones + P4 for the second 24 h (Insulin + E2 → P4) which resulted in Insr and glycogen levels not different from controls. Similarly, cells treated with Insulin + P4 resulted in glycogen concentrations not different from controls. We conclude that the glycogenic actions of E2 on GMMe cells are due to increased responsiveness of the cells to insulin, but not as a result of up-regulation of the insulin receptor. Glycogen mobilization in response to P4 was the result of decreased glycogenesis and increased glycogenolysis occurring concomitantly with reduced Insr expression. Mink uterine glycogen metabolism appears to be regulated in a reproductive cycle-dependent manner in part as a result of the actions of E2 and P4 on cellular responsiveness to insulin.
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Affiliation(s)
- Ayokunle Hodonu
- Department of Biological Sciences, College of Science and Engineering, Idaho State University, Pocatello, ID, 83209, USA
| | - Mario Escobar
- Department of Biology, Brigham Young University-Idaho, Rexburg, ID, 83440, USA
| | - Logan Beach
- Department of Biology, Brigham Young University-Idaho, Rexburg, ID, 83440, USA
| | - Jason Hunt
- Department of Biology, Brigham Young University-Idaho, Rexburg, ID, 83440, USA
| | - Jack Rose
- Department of Biological Sciences, College of Science and Engineering, Idaho State University, Pocatello, ID, 83209, USA.
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Duval F, Dos Santos E, Maury B, Serazin V, Fathallah K, Vialard F, Dieudonné MN. Adiponectin regulates glycogen metabolism at the human fetal–maternal interface. J Mol Endocrinol 2018; 61:139-152. [PMID: 30307166 DOI: 10.1530/jme-18-0013] [Citation(s) in RCA: 8] [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: 01/05/2023]
Abstract
Throughout the entire first trimester of pregnancy, fetal growth is sustained by endometrial secretions, i.e. histiotrophic nutrition. Endometrial stromal cells (EnSCs) accumulate and secrete a variety of nutritive molecules that are absorbed by trophoblastic cells and transmitted to the fetus. Glycogen appears to have a critical role in the early stages of fetal development, since infertile women have low endometrial glycogen levels. However, the molecular mechanisms underlying glycogen metabolism and trafficking at the fetal–maternal interface have not yet been characterized. Among the various factors acting at the fetal–maternal interface, we focused on adiponectin – an adipocyte-secreted cytokine involved in the control of carbohydrate and lipid homeostasis. Our results clearly demonstrated that adiponectin controls glycogen metabolism in EnSCs by (i) increasing glucose transporter 1 expression, (ii) inhibiting glucose catabolism via a decrease in lactate and ATP productions, (iii) increasing glycogen synthesis, (iv) promoting glycogen accumulation via phosphoinositide-3 kinase activation and (v) enhancing glycogen secretion. Furthermore, our results revealed that adiponectin significantly limits glycogen endocytosis by human villous trophoblasts. Lastly, we demonstrated that once glycogen has been endocytosed into placental cells, it is degraded into glucose molecules in lysosomes. Taken as a whole, the present results demonstrate that adiponectin exerts a dual role at the fetal–maternal interface by promoting glycogen synthesis in the endometrium and conversely reducing trophoblastic glycogen uptake. We conclude that adiponectin may be involved in feeding the conceptus during the first trimester of pregnancy by controlling glycogen metabolism in both the uterus and the placenta.
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Affiliation(s)
- Fabien Duval
- GIG – EA 7404, Université de Versailles-Saint Quentin en Yvelines – Université Paris Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
| | - Esther Dos Santos
- GIG – EA 7404, Université de Versailles-Saint Quentin en Yvelines – Université Paris Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
- Service de Biologie Médicale, Centre Hospitalier de Poissy-Saint Germain, Poissy, France
| | - Benoît Maury
- GIG – EA 7404, Université de Versailles-Saint Quentin en Yvelines – Université Paris Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
| | - Valérie Serazin
- GIG – EA 7404, Université de Versailles-Saint Quentin en Yvelines – Université Paris Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
- Service de Biologie Médicale, Centre Hospitalier de Poissy-Saint Germain, Poissy, France
| | - Khadija Fathallah
- Département de Biologie de la Reproduction, Cytogénétique, Gynécologie et Obstétrique, Centre Hospitalier de Poissy-Saint Germain, Poissy, France
| | - François Vialard
- GIG – EA 7404, Université de Versailles-Saint Quentin en Yvelines – Université Paris Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
- Département de Biologie de la Reproduction, Cytogénétique, Gynécologie et Obstétrique, Centre Hospitalier de Poissy-Saint Germain, Poissy, France
| | - Marie-Noëlle Dieudonné
- GIG – EA 7404, Université de Versailles-Saint Quentin en Yvelines – Université Paris Saclay, Unité de Formation et de Recherche des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
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11
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Dean M, Rose J. Activation of the IGF1 receptor stimulates glycogen synthesis by mink uterine epithelial cells. Mol Reprod Dev 2018; 85:449-458. [DOI: 10.1002/mrd.22981] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 02/16/2018] [Accepted: 03/19/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Matthew Dean
- Department of Medicinal Chemistry and Pharmacognosy, Center for Biomolecular Sciences, College of Pharmacy; University of Illinois at Chicago; Chicago Illinois
- Department of Biological Sciences, College of Science and Engineering; Idaho State University; Idaho Pocatello
| | - Jack Rose
- Department of Biological Sciences, College of Science and Engineering; Idaho State University; Idaho Pocatello
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12
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Bramer SA, Macedo A, Klein C. Hexokinase 2 drives glycogen accumulation in equine endometrium at day 12 of diestrus and pregnancy. Reprod Biol Endocrinol 2017; 15:4. [PMID: 28056994 PMCID: PMC5217302 DOI: 10.1186/s12958-016-0223-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Secretion of histotroph during the prolonged pre-implantation phase in mares is crucial to pregnancy maintenance, manifested as increased embryonic loss in mares with age-related endometrial degeneration. Glycogen content of uterine histotroph is higher during the progesterone-dominated phase of the estrous cycle in mares, but regulatory mechanisms are not well understood. METHODS mRNA expression of glycogen-metabolizing enzymes (HK1, HK2, GSK3B, GYS1, PEPCK, PKM, PYGM) in endometrial samples were compared among mares in anestrus, estrus, and at Day 12 of diestrus and pregnancy. In addition, hexokinase 2 (HK2) activity was assessed using a colorimetric assay. RESULTS HK2 was the key regulator of glycogen accumulation during diestrus and pregnancy; hexokinase transcript abundance and enzyme activity were significantly higher during diestrus and pregnancy than estrus and anestrus. In addition, despite similar relative transcript abundance, hexokinase activity was significantly greater in the pregnant versus diestrous endometrium. Therefore, we inferred there was regulation of hexokinase activity through phosphorylation, in addition to its regulation at the transcriptional level during early pregnancy. Based on immunohistochemistry, HK2 was localized primarily in luminal and glandular epithelial cells, with weaker staining in stromal cells. CONCLUSION Among glycogen metabolizing enzymes identified, expression of HK2 was significantly greater during the progesterone-dominated phase of the cycle.
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Affiliation(s)
- Sarah A. Bramer
- Department of Veterinary and Clinical Diagnostic Sciences, University of Calgary, Faculty of Veterinary Medicine, 3280 Hospital Dr NW, Calgary, AB T2N 4Z6 Canada
| | - Alysson Macedo
- Department of Veterinary and Clinical Diagnostic Sciences, University of Calgary, Faculty of Veterinary Medicine, 3280 Hospital Dr NW, Calgary, AB T2N 4Z6 Canada
| | - Claudia Klein
- Department of Veterinary and Clinical Diagnostic Sciences, University of Calgary, Faculty of Veterinary Medicine, 3280 Hospital Dr NW, Calgary, AB T2N 4Z6 Canada
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Bowman K, Rose J. Estradiol stimulates glycogen synthesis whereas progesterone promotes glycogen catabolism in the uterus of the American mink (Neovison vison). Anim Sci J 2017; 88:45-54. [PMID: 27170562 PMCID: PMC5107167 DOI: 10.1111/asj.12564] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 10/02/2015] [Indexed: 11/30/2022]
Abstract
Glycogen synthesis by mink uterine glandular and luminal epithelia (GE and LE) is stimulated by estradiol (E2 ) during estrus. Subsequently, the glycogen deposits are mobilized to near completion to meet the energy requirements of pre-embryonic development and implantation by as yet undetermined mechanisms. We hypothesized that progesterone (P4 ) was responsible for catabolism of uterine glycogen reserves as one of its actions to ensure reproductive success. Mink were treated with E2 , P4 or vehicle (controls) for 3 days and uteri collected 24 h (E2 , P4 and vehicle) and 96 h (E2 ) later. To evaluate E2 priming, mink were treated with E2 for 3 days, then P4 for an additional 3 days (E2 →P4 ) and uteri collected 24 h later. Percent glycogen content of uterine epithelia was greater at E2 + 96 h (GE = 5.71 ± 0.55; LE = 11.54 ± 2.32) than E2 +24 h (GE = 3.63 ± 0.71; LE = 2.82 ± 1.03), and both were higher than controls (GE = 0.27 ± 0.15; LE = 0.54 ± 0.30; P < 0.05). Treatment as E2 →P4 reduced glycogen content (GE = 0.61 ± 0.16; LE = 0.51 ± 0.13), to levels not different from controls, while concomitantly increasing catabolic enzyme (glycogen phosphorylase m and glucose-6-phosphatase) gene expression and amount of phospho-glycogen synthase protein (inactive) in uterine homogenates. Interestingly, E2 →P4 increased glycogen synthase 1 messenger RNA (mRNA) and hexokinase 1mRNA and protein. Our findings suggest to us that while E2 promotes glycogen accumulation by the mink uterus during estrus and pregnancy, it is P4 that induces uterine glycogen catabolism, releasing the glucose that is essential to support pre-embryonic survival and implantation.
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Affiliation(s)
- Kole Bowman
- Department of Biological Sciences, Idaho State University, Pocatello, ID, USA
| | - Jack Rose
- Department of Biological Sciences, Idaho State University, Pocatello, ID, USA
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14
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Dean M, Hunt J, McDougall L, Rose J. Uterine glycogen metabolism in mink during estrus, embryonic diapause and pregnancy. J Reprod Dev 2014; 60:438-46. [PMID: 25225159 PMCID: PMC4284318 DOI: 10.1262/jrd.2014-013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
We have determined uterine glycogen content, metabolizing enzyme expression and activity in the mink, a species that exhibits obligatory embryonic diapause, resulting in delayed implantation. Gross uterine glycogen concentrations were highest in estrus, decreased 50% by diapause and 90% in pregnancy (P ≤ 0.05). Endometrial glycogen deposits, which localized primarily to glandular and luminal epithelia, decreased 99% between estrus and diapause (P ≤ 0.05) and were nearly undetectable in pregnancy. Glycogen synthase and phosphorylase proteins were most abundant in the glandular epithelia. Glycogen phosphorylase activity (total) in uterine homogenates was higher during estrus and diapause, than pregnancy. While glycogen phosphorylase protein was detected during estrus and diapause, glycogen synthase was almost undetectable after estrus, which probably contributed to a higher glycogenolysis/glycogenesis ratio during diapause. Uterine glucose-6-phosphatase 3 gene expression was greater during diapause, when compared to estrus (P ≤ 0.05) and supports the hypothesis that glucose-6-phosphate resulting from phosphorylase activity was dephosphorylated in preparation for export into the uterine lumen. The relatively high amount of hexokinase-1 protein detected in the luminal epithelia during estrus and diapause may have contributed to glucose trapping after endometrial glycogen reserves were depleted. Collectively, our findings suggest to us that endometrial glycogen reserves may be an important source of energy, supporting uterine and conceptus metabolism up to the diapausing blastocyst stage. As a result, the size of uterine glycogen reserves accumulated prior to mating may in part, determine the number of embryos that survive to the blastocyst stage, and ultimately litter size.
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Affiliation(s)
- Matthew Dean
- Department of Biological Sciences, Idaho State University, Pocatello, ID 83201, USA
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