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Pahlavani HA, Laher I, Weiss K, Knechtle B, Zouhal H. Physical exercise for a healthy pregnancy: the role of placentokines and exerkines. J Physiol Sci 2023; 73:30. [PMID: 37964253 PMCID: PMC10718036 DOI: 10.1186/s12576-023-00885-1] [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: 08/14/2023] [Accepted: 10/20/2023] [Indexed: 11/16/2023]
Abstract
Complications such as diabetes and preeclampsia can occur during pregnancy. Moderate-intensity exercise can prevent such complications by releasing placentokines and exerkines, such as apelin, adiponectin, leptin, irisin, and chemerin. Exercise and apelin increase thermogenesis and glucose uptake in pregnancy by activating AMPK, PI3K, PGC-1α, AKT1, UCP3, and sarcolipin. Exercise increases apelin levels to reduce preeclampsia symptoms by increasing eNOS, NO, placental growth factor (PlGF), and VEGF and decreasing levels of fms-like tyrosine kinase 1 (sFlt-1), soluble endoglin (sEng), and oxidative stress. A negative relationship has been reported between plasma leptin and VO2peak/kg and VO2peak in women with gestational diabetes. In active women, decreases in leptin levels reduce the risk of preeclampsia by ~ 40%. Higher adiponectin levels are associated with greater physical activity and lead to increased insulin sensitivity. Increased adiponectin levels in preeclampsia and exercise counteract inflammatory and atherogenic activities while also having vascular protective effects. Exercise increases irisin levels that correlate negatively with fasting glucose, insulin concentration, and glycosylated hemoglobin levels. Irisin augments mRNA expression levels of UCP1 and cell death-inducing DNA fragmentation factor-like effector A (cidea) to cause browning of adipose tissue, increased thermogenesis, and increased energy consumption. Irisin concentrations in mothers with preeclampsia in the third trimester negatively correlate with systolic and diastolic blood pressure. Expression levels of chemerin, IL-6, and TNF-α are increased in gestational diabetes, and the increases in chemerin in late pregnancy positively correlate with the ratio of sFlt-1 to PlGF as a marker of preeclampsia. The effects of physical exercise on placentokines and exerkines in women at various stages of pregnancy remain poorly understood.
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Affiliation(s)
| | - Ismail Laher
- Department of Anesthesiology, Pharmacology, and Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Katja Weiss
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, Zurich, Switzerland.
- Medbase St Gallen Am Vadianplatz, Vadianstrasse 26, 9001, St. Gallen, Switzerland.
| | - Hassane Zouhal
- Movement Sport, Health and Sciences Laboratory (M2S) UFR-STAPS, University of Rennes 2-ENS Cachan, Charles Tillon, France.
- Institut International Des Sciences Du Sport (2IS), Irodouer, France.
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2
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Ning J, Huai J, Wang S, Yan J, Su R, Zhang M, Liu M, Yang H. METTL3 regulates glucose transporter expression in placenta exposed to hyperglycemia through the mTOR signaling pathway. Chin Med J (Engl) 2023:00029330-990000000-00823. [PMID: 37963715 DOI: 10.1097/cm9.0000000000002840] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Alterations in the placental expression of glucose transporters (GLUTs), the crucial maternal-fetal nutrient transporters, have been found in women with hyperglycemia in pregnancy (HIP). However, there is still uncertainty about the underlying effect of the high-glucose environment on placental GLUTs expression in HIP. METHODS We quantitatively evaluated the activity of mammalian target of rapamycin (mTOR) and expression of GLUTs (GLUT1, GLUT3, and GLUT4) in the placenta of women with normal pregnancies (CTRL, n = 12) and pregnant women complicated with poorly controlled type 2 diabetes mellitus (T2DM, n = 12) by immunohistochemistry. In addition, BeWo cells were treated with different glucose concentrations to verify the regulation of hyperglycemia. Then, changes in the expression of GLUTs following the activation or suppression of the mTOR pathway were also assessed using MHY1485/rapamycin (RAPA) treatment or small interfering RNA (siRNA)-mediated silencing approaches. Moreover, we further explored the alteration and potential upstream regulatory role of methyltransferase-like 3 (METTL3) when exposed to hyperglycemia. RESULTS mTOR, phosphorylated mTOR (p-mTOR), and GLUT1 protein levels were upregulated in the placenta of women with T2DM compared with those CTRL. In BeWo cells, mTOR activity increased with increasing glucose concentration, and the expression of GLUT1, GLUT3, and GLUT4 as well as GLUT1 cell membrane translocation were upregulated by hyperglycemia to varying degrees. Both the drug-mediated and genetic depletion of mTOR signaling in BeWo cells suppressed GLUTs expression, whereas MHY1485-induced mTOR activation upregulated GLUTs expression. Additionally, high glucose levels upregulated METTL3 expression and nuclear translocation, and decreasing METTL3 levels suppressed GLUTs expression and mTOR activity and vice versa. Furthermore, in METTL3 knockdown BeWo cells, the inhibitory effect on GLUTs expression was eliminated by activating the mTOR signaling pathway using MHY1485. CONCLUSION High-glucose environment-induced upregulation of METTL3 in trophoblasts regulates the expression of GLUTs through mTOR signaling, contributing to disordered nutrient transport in women with HIP.
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Affiliation(s)
- Jie Ning
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Jing Huai
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Shuxian Wang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Jie Yan
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Rina Su
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Muqiu Zhang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Mengtong Liu
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Huixia Yang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
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Shamshuzzoha M, Islam MM. Early Prediction Model of Macrosomia Using Machine Learning for Clinical Decision Support. Diagnostics (Basel) 2023; 13:2754. [PMID: 37685292 PMCID: PMC10487237 DOI: 10.3390/diagnostics13172754] [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: 05/29/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 09/10/2023] Open
Abstract
The condition of fetal overgrowth, also known as macrosomia, can cause serious health complications for both the mother and the infant. It is crucial to identify high-risk macrosomia-relevant pregnancies and intervene appropriately. Despite this need, there are several gaps in research related to macrosomia, including limited predictive models, insufficient machine learning applications, ineffective interventions, and inadequate understanding of how to integrate machine learning models into clinical decision-making. To address these gaps, we developed a machine learning-based model that uses maternal characteristics and medical history to predict macrosomia. Three different algorithms, namely logistic regression, support vector machine, and random forest, were used to develop the model. Based on the evaluation metrics, the logistic regression algorithm provided the best results among the three. The logistic regression algorithm was chosen as the final algorithm to predict macrosomia. The hyper parameters of the logistic regression model were tuned using cross-validation to achieve the best possible performance. Our results indicate that machine learning-based models have the potential to improve macrosomia prediction and enable appropriate interventions for high-risk pregnancies, leading to better health outcomes for both mother and fetus. By leveraging machine learning algorithms and addressing research gaps related to macrosomia, we can potentially reduce the health risks associated with this condition and make informed decisions about high-risk pregnancies.
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Affiliation(s)
| | - Md. Motaharul Islam
- Department of CSE, United International University, Madani Avenue, Dhaka 1212, Bangladesh;
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Wang JJ, Wang X, Li Q, Huang H, Zheng QL, Yao Q, Zhang J. Feto-placental endothelial dysfunction in Gestational Diabetes Mellitus under dietary or insulin therapy. BMC Endocr Disord 2023; 23:48. [PMID: 36814227 PMCID: PMC9948408 DOI: 10.1186/s12902-023-01305-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
OBJECTIVE Gestational diabetes mellitus (GDM) is a serious complication in pregnancy. Despite controlling the plasma glucose levels with dietary intervention (GDM-D) or insulin therapy (GDM-I), children born of diabetic mothers suffer more long-term complications from childhood to early adulthood. Placental circulation and nutrient exchange play a vital role in fetal development. Additionally, placental endothelial function is an indicator of vascular health, and plays an important role in maintaining placental circulation for nutrient exchange. This study was conducted to assess changes in fetal endothelial dysfunction in GDM under different interventions during pregnancy. METHODS The primary human umbilical vein endothelial cells (HUVECs) were obtained from normal pregnant women (n = 11), GDM-D (n = 14), and GDM-I (n = 12) patients. LC-MS/MS was used to identify differentially expressed proteins in primary HUVECs among the three groups, after which Bioinformatics analysis was performed. Glucose uptake, ATP level, apoptosis, and differentially expressed proteins were assessed to investigate changes in energy metabolism. RESULTS A total of 8174 quantifiable proteins were detected, and 142 differentially expressed proteins were identified after comparing patients with GDM-D/GDM-I and healthy controls. Of the 142, 64 proteins were upregulated while 77 were downregulated. Bioinformatics analysis revealed that the differentially expressed proteins were involved in multiple biological processes and signaling pathways related to cellular processes, biological regulation, and metabolic processes. According to the results from KEGG analysis, there were changes in the PI3K/AKT signaling pathway after comparing the three groups. In addition, there was a decrease in glucose uptake in the GDM-I (P < 0.01) group. In GDM-I, there was a significant decrease in the levels of glucose transporter 1 (GLUT1) and glucose transporter 3 (GLUT3). Moreover, glucose uptake was significantly decreased in GDM-I, although in GDM-D, there was only a decrease in the levels of GLUT1. ATP levels decreased in GDM-I (P < 0.05) and apoptosis occurred in both the GDM-D and GDM-I groups. Compared to the normal controls, the levels of phosphate AKT and phosphate AMPK over total AKT and AMPK were reduced in the GDM-I group. CONCLUSION In summary, endothelial dysfunction occurred in pregnancies with GDM even though the plasma glucose levels were controlled, and this dysfunction might be related to the degree of glucose tolerance. The energy dysfunction might be related to the regulation of the AKT/AMPK/mTOR signaling pathway.
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Affiliation(s)
- Jing-Jing Wang
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China
| | - Xi Wang
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China
| | - Qian Li
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China
| | - Hua Huang
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China
| | - Qiao-Ling Zheng
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China
| | - Qin Yao
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China
| | - Jun Zhang
- Department of Clinical pharmacy, First Affiliated hospital of Kunming Medical University, Yunnan, China.
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Role of melatonin receptor 1B gene polymorphism and its effect on the regulation of glucose transport in gestational diabetes mellitus. J Zhejiang Univ Sci B 2023; 24:78-88. [PMID: 36632752 PMCID: PMC9837374 DOI: 10.1631/jzus.b2200136] [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] [Indexed: 01/13/2023]
Abstract
Melatonin receptor 1B (MT2, encoded by the MTNR1B gene), a high-affinity receptor for melatonin, is associated with glucose homeostasis including glucose uptake and transport. The rs10830963 variant in the MTNR1B gene is linked to glucose metabolism disorders including gestational diabetes mellitus (GDM); however, the relationship between MT2-mediated melatonin signaling and a high birth weight of GDM infants from maternal glucose abnormality remains poorly understood. This article aims to investigate the relationship between rs10830963 variants and GDM development, as well as the effects of MT2 receptor on glucose uptake and transport in trophoblasts. TaqMan-MGB (minor groove binder) probe quantitative real-time polymerase chain reaction (qPCR) assays were used for rs10930963 genotyping. MT2 expression in the placenta of GDM and normal pregnant women was detected by immunofluorescence, western blot, and qPCR. The relationship between MT2 and glucose transporters (GLUTs) or peroxisome proliferator-activated receptor γ (PPARγ) was established by western blot, and glucose consumption of trophoblasts was measured by a glucose assay kit. The results showed that the genotype and allele frequencies of rs10830963 were significantly different between GDM and normal pregnant women (P<0.05). The fasting, 1-h and 2-h plasma glucose levels of G-allele carriers were significantly higher than those of C-allele carriers (P<0.05). Besides, the protein and messenger RNA (mRNA) expression of MT2 in the placenta of GDM was significantly higher than that of normal pregnant women (P<0.05). Melatonin could stimulate glucose uptake and GLUT4 and PPARγ protein expression in trophoblasts, which could be attenuated by MT2 receptor knockdown. In conclusion, the rs10830963 variant was associated with an increased risk of GDM. The MT2 receptor is essential for melatonin to raise glucose uptake and transport, which may be mediated by PPARγ.
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Wang S, Ning J, Huai J, Yang H. Hyperglycemia in Pregnancy-Associated Oxidative Stress Augments Altered Placental Glucose Transporter 1 Trafficking via AMPKα/p38MAPK Signaling Cascade. Int J Mol Sci 2022; 23:ijms23158572. [PMID: 35955706 PMCID: PMC9369398 DOI: 10.3390/ijms23158572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 11/16/2022] Open
Abstract
GLUT1, being a ubiquitous transporter isoform, is considered primarily responsible for glucose uptake during glycolysis. However, there is still uncertainty about the regulatory mechanisms of GLUT1 in hyperglycemia in pregnancy (HIP, PGDM, and GDM) accompanied by abnormal oxidative stress responses. In the present study, it was observed that the glycolysis was enhanced in GDM and PGDM pregnancies. In line with this, the antioxidant system was disturbed and GLUT1 expression was increased due to diabetes impairment in both placental tissues and in vitro BeWo cells. GLUT1 responded to high glucose stimulation through p38MAPK in an AMPKα-dependent manner. Both the medical-mediated and genetic depletion of p38MAPK in BeWo cells could suppress GLUT1 expression and OS-induced proapoptotic effects. Furthermore, blocking AMPKα with an inhibitor or siRNA strategy promoted p38MAPK, GLUT1, and proapoptotic molecules expression and vice versa. In general, a new GLUT1 regulation pathway was identified, which could exert effects on placental transport function through the AMPKα-p38MAPK pathway. AMPKα may be a therapeutic target in HIP for alleviating diabetes insults.
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Affiliation(s)
- Shuxian Wang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China; (S.W.); (J.N.); (J.H.)
- Beijing Key Laboratory of Maternal Fetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Jie Ning
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China; (S.W.); (J.N.); (J.H.)
- Beijing Key Laboratory of Maternal Fetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Jing Huai
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China; (S.W.); (J.N.); (J.H.)
- Beijing Key Laboratory of Maternal Fetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Huixia Yang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China; (S.W.); (J.N.); (J.H.)
- Beijing Key Laboratory of Maternal Fetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Correspondence:
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Fetomaternal Expression of Glucose Transporters (GLUTs)—Biochemical, Cellular and Clinical Aspects. Nutrients 2022; 14:nu14102025. [PMID: 35631166 PMCID: PMC9146575 DOI: 10.3390/nu14102025] [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: 03/10/2022] [Revised: 04/28/2022] [Accepted: 05/11/2022] [Indexed: 12/10/2022] Open
Abstract
Several types of specialized glucose transporters (GLUTs) provide constant glucose transport from the maternal circulation to the developing fetus through the placental barrier from the early stages of pregnancy. GLUT1 is a prominent protein isoform that regulates placental glucose transfer via glucose-facilitated diffusion. The GLUT1 membrane protein density and permeability of the syncytial basal membrane (BM) are the main factors limiting the rate of glucose diffusion in the fetomaternal compartment in physiological conditions. Besides GLUT1, the GLUT3 and GLUT4 isoforms are widely expressed across the human placenta. Numerous medical conditions and molecules, such as hormones, adipokines, and xenobiotics, alter the GLUT’s mRNA and protein expression. Diabetes upregulates the BM GLUT’s density and promotes fetomaternal glucose transport, leading to excessive fetal growth. However, most studies have found no between-group differences in GLUTs’ placental expression in macrosomic and normal control pregnancies. The fetomaternal GLUTs expression may also be influenced by several other conditions, such as chronic hypoxia, preeclampsia, and intrahepatic cholestasis of pregnancy.
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8
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Alizadeh Pahlavani H. Possible roles of exercise and apelin against pregnancy complications. Front Endocrinol (Lausanne) 2022; 13:965167. [PMID: 36093083 PMCID: PMC9452694 DOI: 10.3389/fendo.2022.965167] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/08/2022] [Indexed: 12/02/2022] Open
Abstract
The prevalence of maternal obesity during pregnancy is associated with the risk of gestational diabetes, preeclampsia, and cardiomyopathy. Environmental factors such as active lifestyles and apelin may lead to beneficial changes. In rats, apelin and exercise (45 to 65% VO2max for 6 to 9 weeks) during pregnancy increase brown adipose tissue (BAT) proteins such as Cidea, Elovl3, UCP1, PRDM16, and PGC-1α in males and females fetuses, while white adipose tissue (WAT) is reduced. In humans and animals, apelin and exercise stimulate the expression of the glucose transporters (GLUT1/2/4) in the muscle and adipose tissue through the PI3K/Akt and AMPK pathways. Hence, exercise and apelin may are known as regulators of energy metabolism and be anti-obesity and anti-diabetic properties. In mice, exercise also creates a short-term hypoxic environment in the pregnant mother, activating HIF-1, VEGF, and VEGFR, and increasing angiogenesis. Exercise and apelin also increase vasodilation, angiogenesis, and suppression of inflammation through the L-arginine/eNOS/NO pathway in humans. Exercise can stimulate the ACE2-Ang-(1-7)-Mas axis in parallel with inhibiting the ACE-Ang II-AT1 pathway. Exercise and apelin seem to prevent preeclampsia through these processes. In rats, moderate-intensity exercise (60 to 70% VO2max for 8 weeks) and apelin/APJ also may prevent pathological hypertrophy in pregnancy by activating the PI3K/Akt/mTOR/p70S6K pathway, PI3k-Akt-ERK1/2-p70S6K pathway, and the anti-inflammatory cytokine IL-10. Since pre-clinical studies have been more on animal models, future research with scientific guidelines should pay more attention to human specimens. In future research, time factors such as the first, second, and third trimesters of pregnancy and the intensity and duration of exercise are important variables that should be considered to determine the optimal intensity and duration of exercise.
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Hung TH, Wu CP, Chen SF. Differential Changes in Akt and AMPK Phosphorylation Regulating mTOR Activity in the Placentas of Pregnancies Complicated by Fetal Growth Restriction and Gestational Diabetes Mellitus With Large-For-Gestational Age Infants. Front Med (Lausanne) 2021; 8:788969. [PMID: 34938752 PMCID: PMC8685227 DOI: 10.3389/fmed.2021.788969] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/18/2021] [Indexed: 01/04/2023] Open
Abstract
Background: Dysregulation of placental mechanistic target of rapamycin (mTOR) activity has been implicated in the pathophysiology of pregnancies complicated by idiopathic fetal growth restriction (FGR) and gestational diabetes mellitus (GDM) with large-for-gestational-age (LGA) infants. However, the underlying mechanisms remain unclear. Methods: We obtained placentas from women with normal pregnancies (n = 11) and pregnancies complicated by FGR (n = 12) or GDM with LGA infants (n = 12) to compare the levels of total and phosphorylated forms of Akt, AMPK, TSC2, and mTOR among the three groups and used primary cytotrophoblast cells isolated from 30 normal term placentas to study the effects of oxygen–glucose deprivation (OGD) and increasing glucose concentrations on the changes of these factors in vitro. Results: Placentas from FGR pregnancies had lower phosphorylated Akt (p-Akt) levels (P < 0.05), higher p-AMPKα levels (P < 0.01), and lower mTOR phosphorylation (P < 0.05) compared to that of normal pregnant women. Conversely, women with GDM and LGA infants had higher p-Akt (P < 0.001), lower p-AMPKα (P < 0.05), and higher p-mTOR levels (P < 0.05) in the placentas than normal pregnant women. Furthermore, primary cytotrophoblast cells subjected to OGD had lower p-Akt and p-mTOR (both P < 0.05) and higher p-AMPKα levels (P < 0.05) than those cultured under standard conditions, but increasing glucose concentrations had opposite effects on the respective levels. Administering compound C, an AMPK inhibitor, did not significantly affect Akt phosphorylation but partially reversed mTOR phosphorylation. Administering LY294002, an Akt inhibitor, decreased p-mTOR levels, but did not change the levels of total and phosphorylated AMPKα. Conclusion: These results suggest that Akt and AMPK are involved in the regulation of trophoblast mTOR activity in the placentas of pregnancies complicated by FGR and GDM with LGA infants.
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Affiliation(s)
- Tai-Ho Hung
- Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan.,Department of Obstetrics and Gynecology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chung-Pu Wu
- Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan.,Graduate Institute of Biomedical Sciences, Department of Physiology and Pharmacology and Molecular Medicine Research Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Szu-Fu Chen
- Department of Physical Medicine and Rehabilitation, Cheng Hsin General Hospital, Taipei, Taiwan
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Zhang L, Yu X, Wu Y, Fu H, Xu P, Zheng Y, Wen L, Yang X, Zhang F, Hu M, Wang H, Liu X, Qiao J, Peng C, Gao R, Saffery R, Fu Y, Qi H, Tong C, Kilby MD, Baker PN. Gestational Diabetes Mellitus-Associated Hyperglycemia Impairs Glucose Transporter 3 Trafficking in Trophoblasts Through the Downregulation of AMP-Activated Protein Kinase. Front Cell Dev Biol 2021; 9:722024. [PMID: 34796169 PMCID: PMC8593042 DOI: 10.3389/fcell.2021.722024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 10/08/2021] [Indexed: 12/25/2022] Open
Abstract
AMP-activated protein kinase (AMPK) is an important regulator of glucose metabolism, and glucose transporter 3 (GLUT3) is an efficient glucose transporter in trophoblasts. Whether placental AMPK and GLUT3 respond accordingly to gestational diabetes mellitus (GDM) remains uncertain. Here, we explored the regulatory role of AMPK in the GLUT3-dependent uptake of glucose by placental trophoblasts and the viability of the cells. In this study, the level of glycolysis in normal and GDM-complicated placentas was assessed by LC-MS/MS. The trophoblast hyperglycemia model was induced by the incubation of HTR8/SVneo cells with a high glucose concentration. GDM animal models were generated with db/ + mice and C57BL/6J mice fed a high-fat diet, and AMPK was manipulated by the oral administration of metformin. The uptake of glucose by trophoblasts was assessed using 2-NBDG or 2-deoxy-D-[3H] glucose. The results showed that GDM is associated with impaired glycolysis, AMPK activity, GLUT3 expression in the plasma membrane (PM) and cell survival in the placenta. Hyperglycemia induced similar changes in trophoblasts, and these changes were rescued by AMPK activation. Both hyperglycemic db/ + and high-fat diet-induced GDM mice exhibited a compromised AMPK–GLUT3 axis and suppressed cell viability in the placenta as well as excessive fetal growth, and all of these effects were partially alleviated by metformin. Taken together, our findings support the notion that AMPK activation upregulates trophoblast glucose uptake by stimulating GLUT3 translocation, which is beneficial for viability. Thus, the modulation of glucose metabolism in trophoblasts by targeting AMPK might ameliorate the adverse intrauterine environment caused by GDM.
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Affiliation(s)
- Li Zhang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xinyang Yu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Yue Wu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Huijia Fu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Ping Xu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Biochemistry and Molecular Biology, University of Texas McGovern Medical School, Houston, TX, United States
| | - Yangxi Zheng
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Biochemistry and Molecular Biology, University of Texas McGovern Medical School, Houston, TX, United States.,Department of Stem Cell Transplantation and Cell Therapy, MD Anderson Cancer Center, Houston, TX, United States
| | - Li Wen
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xiaotao Yang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Fumei Zhang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Mingyu Hu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Hao Wang
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Xiyao Liu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Juan Qiao
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Chuan Peng
- State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China
| | - Rufei Gao
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Richard Saffery
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Department of Paediatrics, Cancer, Disease and Developmental Epigenetics, Murdoch Children's Research Institute, University of Melbourne, Parkville, VIC, Australia
| | - Yong Fu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Hongbo Qi
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Chao Tong
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing, China.,International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Mark D Kilby
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
| | - Philip N Baker
- International Collaborative Laboratory of Reproduction and Development of the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China.,College of Life Sciences, University of Leicester, Leicester, United Kingdom
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11
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Wang G, Yu Y, Wang YZ, Yin PH, Xu K, Zhang H. The effects and mechanisms of isoliquiritigenin loaded nanoliposomes regulated AMPK/mTOR mediated glycolysis in colorectal cancer. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2021; 48:1231-1249. [PMID: 32985258 DOI: 10.1080/21691401.2020.1825092] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this study, isoliquiritigenin (ISL) incorporated nanoliposomes were prepared and their effects on colorectal cancer (CRC) cell lines were investigated. Herein, we sought to explore the anti-cancer mechanisms of ISL loaded nanoliposomes (ISL-NLs) on AMP-activated protein kinase/mammalian target of rapamycin (AMPK/mTOR) pathways mediated glycolysis. Also, the key targets such as caveolin 1 (CAV1), glucose transporters and Akt/mTOR that promote glycolysis, and are activated via the induction of α-enolase (ENO1), fructose bisphosphate aldolase A (ALDOA) and monocarboxylate transporter 4 (MCT4) expressions were also investigated. It was shown that ISL-NLs significantly suppressed the proliferation and glucose uptake of CRC cell by potentially regulating the glycolysis and lactate targets as well as pathways that formed the basis of the anti-CRC effects of ISL-NLs. The mechanism underlying this effect was further validated via the regulation of some key targets such as ENO1, ALDOA, lactate dehydrogenase A (LDHA) and MCT4 in glycolysis coupled with cellular myelocytomatosis oncogene (c-myc), hypoxia-inducible factor 1-alpha (HIF-1α) in protein kinase B/mTOR (Akt/mTOR) pathways. Moreover, the AMPK proteins were identified to be up-regulated while the lactic acid production was suppressed by ISL-NLs in the CRC cells, indicating that ISL-NLs had an inhibitory effect on AMPK mediated glycolysis and lactate production. Altogether, these results have provided insights into the mechanism underlying the key role that liposomal ISL played in the multiple inhibition of AMPK and Akt/mTOR mediated glycolysis and lactate generation, which may be regulated as the alternative metabolic pathways of CRC as well as serve as adjuvant therapy for the disease.
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Affiliation(s)
- Gang Wang
- Department of Pharmaceutics, Shanghai Eighth People's Hospital, Jiangsu University, Shanghai, China
| | - Yang Yu
- School of Pharmacy, Jiangsu University Zhenjiang City, China
| | - Yu-Zhu Wang
- School of Pharmacy, Jiangsu University Zhenjiang City, China
| | - Pei-Hao Yin
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Xu
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Heng Zhang
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
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12
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Joshi NP, Mane AR, Sahay AS, Sundrani DP, Joshi SR, Yajnik CS. Role of Placental Glucose Transporters in Determining Fetal Growth. Reprod Sci 2021; 29:2744-2759. [PMID: 34339038 DOI: 10.1007/s43032-021-00699-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 07/16/2021] [Indexed: 11/29/2022]
Abstract
Maternal nutrient availability and its transport through the placenta are crucial for fetal development. Nutrients are transported to the fetus via specific transporters present on the microvillous (MVM) and basal membrane (BM) of the placenta. Glucose is the most abundant nutrient transferred to the fetus and plays a key role in the fetal growth and development. The transfer of glucose across the human placenta is directly proportional to maternal glucose concentrations, and is mediated by glucose transporter family proteins (GLUTs). Maternal glucose concentration influences expression and activity of GLUTs in the MVM (glucose uptake) and BM (glucose delivery). Alteration in the number and function of these transporters may affect the growth and body composition of the fetus. The thin-fat phenotype of the Indian baby (low ponderal index, high adiposity) is proposed as a harbinger of future metabolic risk. We propose that placental function mediated through nutrient transporters contributes to the phenotype of the baby, specifically that glucose transporters will influence neonatal fat. This review discusses the role of various glucose transporters in the placenta in determining fetal growth and body composition, in light of the above hypothesis.
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Affiliation(s)
- Nikita P Joshi
- Mother and Child Health, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune-Satara Road, Pune, 411043, India
| | - Aditi R Mane
- Mother and Child Health, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune-Satara Road, Pune, 411043, India
| | - Akriti S Sahay
- Mother and Child Health, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune-Satara Road, Pune, 411043, India
| | - Deepali P Sundrani
- Mother and Child Health, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune-Satara Road, Pune, 411043, India
| | - Sadhana R Joshi
- Mother and Child Health, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune-Satara Road, Pune, 411043, India.
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13
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Wang J, Jiang W, Xin J, Xue W, Shi C, Wen J, Huang Y, Hu C. Caveolin-1 Alleviates Acetaminophen-Induced Fat Accumulation in Non-Alcoholic Fatty Liver Disease by Enhancing Hepatic Antioxidant Ability via Activating AMPK Pathway. Front Pharmacol 2021; 12:717276. [PMID: 34305621 PMCID: PMC8293675 DOI: 10.3389/fphar.2021.717276] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 06/21/2021] [Indexed: 12/17/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an independent risk factor for acute liver injury caused by overuse of acetaminophen (APAP). Caveolin-1 (CAV1), a regulator of hepatic energy metabolism and oxidative stress, was found to have a protective effect against NAFLD in our previous study. However, it remains unclear whether CAV1 has a protective effect against APAP-induced hepatotoxicity in NAFLD. The aim of this study was to determine whether CAV1 inhibits oxidative stress through the AMPK/Nrf2/HO-1 pathway to protect the liver from fat accumulation exacerbated by APAP in NAFLD. In this study, seven-week-old C57BL/6 male mice (18–20 g) were raised under similar conditions for in vivo experiment. In vitro, L02 cells were treated with A/O (alcohol and oleic acid mixture) for 48 h, and APAP was added at 24 h for further incubation. The results showed that the protein expression of the AMPK/Nrf2 pathway was enhanced after CAV1 upregulation. The effects of CAV1 on fat accumulation, ROS, and the AMPK/Nrf2 anti-oxidative pathway were reduced after the application of CAV1-siRNA. Finally, treatment with compound C (an AMPK inhibitor) prevented CAV1 plasmid-mediated alleviation of oxidative stress and fat accumulation and reduced the protein level of Nrf2 in the nucleus, demonstrating that the AMPK/Nrf2/HO-1 pathway was involved in the protective effect of CAV1. These results indicate that CAV1 exerted a protective effect against APAP-aggravated lipid deposition and hepatic injury in NAFLD by inhibiting oxidative stress. Therefore, the upregulation of CAV1 might have clinical benefits in reducing APAP-aggravated hepatotoxicity in NAFLD.
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Affiliation(s)
- Jiarong Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Wei Jiang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Jiao Xin
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Weiju Xue
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Congjian Shi
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Jiagen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Yan Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
| | - Chengmu Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.,School of Pharmacy, Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,Anhui Institute of Innovative Drugs, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China
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14
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Kuai XY, Lei ZY, Liu XS, Shao XY. The Interaction of GLUT1 and FOXM1 Leads to a Poor Prognosis in Colorectal Cancer. Anticancer Agents Med Chem 2021; 20:941-950. [PMID: 32188390 DOI: 10.2174/1871520620666200318094618] [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: 08/17/2019] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Colorectal Cancer (CRC) is one of the most common fatal diseases with high morbidity. Alteration of glucose metabolism is one of the hallmarks in the development of CRC. Glucose Transporter 1 (GLUT1) is a key rate-limiting protein in hyperactive glucose metabolism and up-regulated in CRC, however, the underlying mechanism of the altered metabolism in CRC is still unknown. METHODS In this study, immunohistochemical staining was used to evaluate the expression of GLUT1 and FOXM1 in 135 paired CRC and adjacent normal tissues. The association between the expression of GLUT1/FOXM1 and clinicopathological factors was determined and the correlation between GLUT1 and FOXM1 in CRC was investigated. RESULTS Our results revealed that regardless of tumor location, GLUT1 and FOXM1 were overexpressed in CRC tissues, especially in patients with positive lymph node metastasis and TNM stage III-IV. Furthermore, GLUT1 showed a significantly strong link with FOXM1 in CRC tissue. CONCLUSION Overexpression of GLUT1 and FOXM1 may play critical roles in CRC leading to a poor prognosis.
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Affiliation(s)
- Xiao-Yi Kuai
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
| | - Zhi-Yi Lei
- Department of Radiology, The Qinghai Provincial People's Hospital, XiNing, QingHai, China
| | - Xiao-Shuang Liu
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Xin-Yu Shao
- Department of Gastroenterology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, China
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15
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Bai Y, Du Q, Zhang L, Li L, Wang N, Wu B, Li P, Li L. Silencing of ANGPTL8 Alleviates Insulin Resistance in Trophoblast Cells. Front Endocrinol (Lausanne) 2021; 12:635321. [PMID: 34163433 PMCID: PMC8215783 DOI: 10.3389/fendo.2021.635321] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/06/2021] [Indexed: 12/11/2022] Open
Abstract
This study aims to investigate the effect of angiopoietin like 8 (ANGPTL8) on gestational diabetes mellitus (GDM) and insulin resistance (IR). The GDM model was induced by high fat diet in mice, and IR was observed. The expression and secretion of ANGPTL8 were promoted in placenta of GDM mice. IR was induced in trophoblast cell HTR-8/SVneo by treatment of high concentration of insulin, and the expression levels of ANGPTL8 were increased. Silencing of ANGPTL8 alleviated IR and decreased glucose uptake in HTR-8/SVneo cells. However, the inflammation and oxidative stress in IR cells were not restrained by ANGPTL8 knockdown. In addition, c-Jun N-terminal kinase (JNK) signaling was activated by IR, which was inhibited by silencing of ANGPTL8. The effect of ANGPTL8 knockdown on IR was attenuated by JNK antagonist, and aggravated by JNK agonist, suggesting that ANGPTL8 affected IR by regulating JNK signaling. In conclusion, we demonstrated that the silencing of ANGPTL8 ameliorated IR by inhibiting JNK signaling in trophoblast cells. These findings may provide novel insights for diagnosis and treatment of GDM in clinic.
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16
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Abstract
PURPOSE OF REVIEW Obesity and diabetes have already become the second largest risk factor for cardiovascular disease. During the last decade, remarkable advances have been made in understanding the human genome's contribution to glucose homeostasis disorders and obesity. A few studies on rare mutations of candidate genes provide potential genetic targets for the treatment of diabetes and obesity. In this review, we discussed the detailed findings of these studies and the possible causalities between specific genetic variations and dysfunctions in energy or glucose homeostasis. We are optimistic that novel therapeutic strategies targeting these specific mutants for treating and preventing diabetes and obesity will be developed in the near future. RECENT FINDINGS Studies on rare genetic mutation-caused obesity or diabetes have identified potential genetic targets to decrease body weight or reduce the risk of diabetes. Rare mutations observed in lipodystrophy, obese, or diabetic human patients are promising targets in the treatment of diabetes and obesity.
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Affiliation(s)
- Bing Feng
- Pennington Biomedical Research Center, Brain Glycemic And Metabolism Control Department, Louisiana State University, 6400 Perkins Rd, Basic Science Building L2024, Baton Rouge, LA, 70808, USA
| | - Pingwen Xu
- The Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, The University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Yanlin He
- Pennington Biomedical Research Center, Brain Glycemic And Metabolism Control Department, Louisiana State University, 6400 Perkins Rd, Basic Science Building L2024, Baton Rouge, LA, 70808, USA.
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17
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Huang B, Zhu W, Zhao H, Zeng F, Wang E, Wang H, Chen J, Li M, Huang C, Ren L, Niu J, Zhang JV. Placenta-Derived Osteoprotegerin Is Required for Glucose Homeostasis in Gestational Diabetes Mellitus. Front Cell Dev Biol 2020; 8:563509. [PMID: 32984349 PMCID: PMC7493629 DOI: 10.3389/fcell.2020.563509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/13/2020] [Indexed: 12/15/2022] Open
Abstract
Osteoprotegerin (OPG) is involved in various biological processes, including bone remodeling, vascular calcification and pancreatic β-cell function. Although some clinical studies have shown an increase in serum OPG level during pregnancy, the role of OPG in gestational diabetes mellitus (GDM) is largely unknown. Therefore, we explored the effect of OPG in metabolic homeostasis during pregnancy. We initially evaluated serum OPG levels using ELISA and western blotting techniques on samples from GDM patients. We also assessed OPG expression levels in maternal mice. We then used blastocysts transduced with lentiviruses capable of trophoblast-specific transgene expression to establish placenta-specific OPG knockdown or overexpression mouse models for functional and mechanistic investigation after embryo transplantation. We found that OPG expression was positively associated with GDM in clinical samples, and OPG levels were significantly increased in GDM patient sera and term placenta. Serum OPG was significantly increased in maternal compared to non-pregnant mice, and expression levels of OPG were the highest in placenta compared with other organs, including bone, liver and pancreas. OPG was also significantly increased in pregnant mice fed a high-fat diet (HFD). Placenta-specific OPG knockdown induced glucose intolerance, decreased β-cell proliferation and decreased serum insulin levels, whereas placenta-specific OPG overexpression promoted glucose tolerance and enhanced β-cell proliferation, which increased serum insulin production and decreased fetal weight in HFD-feeding pregnant mice. Placenta-derived OPG (pl-OPG) regulated glucose homeostasis during pregnancy via enhancement of β-cell proliferation, which suggests a potential therapeutic application of OPG for GDM.
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Affiliation(s)
- Binbin Huang
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China
| | - Wen Zhu
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China
| | - Huashan Zhao
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Department of Clinical Pharmacy and Translational Medicine, School of Pharmacy and Biomedicine, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Fa Zeng
- Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Esther Wang
- Biological Sciences Collegiate Division, The University of Chicago, Chicago, IL, United States
| | - Hefei Wang
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Department of Clinical Pharmacy and Translational Medicine, School of Pharmacy and Biomedicine, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jie Chen
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Department of Clinical Pharmacy and Translational Medicine, School of Pharmacy and Biomedicine, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Mengxia Li
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Department of Clinical Pharmacy and Translational Medicine, School of Pharmacy and Biomedicine, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Chen Huang
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Department of Clinical Pharmacy and Translational Medicine, School of Pharmacy and Biomedicine, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Lirong Ren
- Shenzhen Bao'an Traditional Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Jianmin Niu
- Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Jian V Zhang
- Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Department of Clinical Pharmacy and Translational Medicine, School of Pharmacy and Biomedicine, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Guangdong Key Laboratory of Nanomedicine, Shenzhen, China
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18
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Gynura divaricata exerts hypoglycemic effects by regulating the PI3K/AKT signaling pathway and fatty acid metabolism signaling pathway. Nutr Diabetes 2020; 10:31. [PMID: 32796820 PMCID: PMC7427804 DOI: 10.1038/s41387-020-00134-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 07/26/2020] [Accepted: 08/05/2020] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVES The study aimed to examine the anti-diabetic effects of Gynura divaricata (GD) and the underlying mechanism. METHODS Information about the chemical compositions of GD was obtained from extensive literature reports. Potential target genes were predicted using PharmMapper and analyzed using Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO). To validate the results from bioinformatics analyses, an aqueous extract of GD was administered to type 2 diabetic rats established by feeding a high-fat and high-sugar diet followed by STZ injection. Key proteins of the PI3K/AKT signaling pathway and fatty acid metabolism signaling pathway were investigated by immunoblotting. RESULTS The blood glucose of the rats in the GD treatment group was significantly reduced compared with the model group without treatment. GD also showed activities in reducing the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), and creatinine (CREA). The levels of urine sugar (U-GLU) and urine creatinine (U-CREA) were also lowered after treatment with GD. Bioinformatics analysis showed that some pathways including metabolic pathways, insulin resistance, insulin signaling pathway, PPAR signaling pathway, bile secretion, purine metabolism, etc. may be regulated by GD. Furthermore, GD significantly increased the protein expression levels of PKM1/2, p-AKT, PI3K p85, and GLUT4 in the rat liver. In addition, the expression levels of key proteins in the fatty acid metabolism signaling pathway including AMPK, p-AMPK, PPARα, and CPT1α were significantly upregulated. The anti-apoptotic protein BCL-2/BAX expression ratio in rats was significantly upregulated after GD intervention. These results were consistent with the bioinformatics analysis results. CONCLUSIONS Our study suggests that GD can exert hypoglycemic effects in vivo by regulating the genes at the key nodes of the PI3K/AKT signaling pathway and fatty acid metabolism signaling pathway.
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19
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Karamali M, Dastyar F, Badakhsh MH, Aghadavood E, Amirani E, Asemi Z. The Effects of Selenium Supplementation on Gene Expression Related to Insulin and Lipid Metabolism, and Pregnancy Outcomes in Patients with Gestational Diabetes Mellitus: a Randomized, Double-Blind, Placebo-Controlled Trial. Biol Trace Elem Res 2020; 195:1-8. [PMID: 31317471 DOI: 10.1007/s12011-019-01818-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 07/05/2019] [Indexed: 12/20/2022]
Abstract
This study was performed to evaluate the effects of selenium supplementation on gene expression related to insulin and lipid metabolism, and pregnancy outcomes in patients with gestational diabetes mellitus (GDM). The current randomized, double-blind, placebo-controlled clinical trial was conducted in 36 patients with GDM. Participants were randomly divided into two groups to intake either 200 μg/day selenium supplements as selenium yeast or placebo (n = 18 each group) for 6 weeks. Selenium supplementation upregulated peroxisome proliferator-activated receptor gamma (P = 0.03) and glucose transporter 1 (GLUT-1) (P = 0.01) in lymphocytes of subjects with GDM compared with the placebo. Selenium supplementation did not affect gene expression of low-density lipoprotein receptor (LDLR) and lipoprotein(a) [Lp(a)]. Supplementation with selenium had a significant decrease in incidence of newborns' hyperbilirubinemia (5.6% vs. 33.3%, P = 0.03) and newborns' hospitalization (5.6% vs. 33.3%, P = 0.03) compared with the placebo. Overall, we found that selenium supplementation for 6 weeks among patients with GDM significantly increased PPAR-γ and GLUT-1 expression, but did not affect gene expression of LDLR and LP(a). It also reduced incidence of newborns' hyperbilirubinemia and newborns' hospitalization. Clinical trial registration number: http://www.irct.ir: IRCT20170513033941N35.
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Affiliation(s)
- Maryam Karamali
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Dastyar
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Badakhsh
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Esmat Aghadavood
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Elaheh Amirani
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran.
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20
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de Aguiar Greca SC, Kyrou I, Pink R, Randeva H, Grammatopoulos D, Silva E, Karteris E. Involvement of the Endocrine-Disrupting Chemical Bisphenol A (BPA) in Human Placentation. J Clin Med 2020; 9:jcm9020405. [PMID: 32028606 PMCID: PMC7074564 DOI: 10.3390/jcm9020405] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 12/16/2022] Open
Abstract
Background: Endocrine-disrupting chemicals (EDCs) are environmental chemicals/toxicants that humans are exposed to, interfering with the action of multiple hormones. Bisphenol A (BPA) is classified as an EDC with xenoestrogenic activity with potentially adverse effects in reproduction. Currently, a significant knowledge gap remains regarding the complete spectrum of BPA-induced effects on the human placenta. As such, the present study examined the effects of physiologically relevant doses of BPA in vitro. Methods: qRT-PCR, Western blotting, immunofluorescence, ELISA, microarray analyses, and bioinformatics have been employed to study the effects of BPA using nonsyncytialised (non-ST) and syncytialised (ST) BeWo cells. Results: Treatment with 3 nM BPA led to an increase in cell number and altered the phosphorylation status of p38, an effect mediated primarily via the membrane-bound estrogen receptor (GPR30). Nonbiased microarray analysis identified 1195 and 477 genes that were differentially regulated in non-ST BeWo cells, whereas in ST BeWo cells, 309 and 158 genes had altered expression when treated with 3 and 10 nM, respectively. Enriched pathway analyses in non-ST BeWo identified a leptin and insulin overlap (3 nM), methylation pathways (10 nM), and differentiation of white and brown adipocytes (common). In the ST model, most significantly enriched were the nuclear factor erythroid 2-related factor 2 (NRF2) pathway (3 nM) and mir-124 predicted interactions with cell cycle and differentiation (10 nM). Conclusion: Collectively, our data offer a new insight regarding BPA effects at the placental level, and provide a potential link with metabolic changes that can have an impact on the developing fetus.
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Affiliation(s)
| | - Ioannis Kyrou
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, UK;
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
- Institute of Precision Diagnostics and Translational Medicine, UHCW NHS Trust, Coventry CV4 7AL, UK; (H.R.); (D.G.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Ryan Pink
- Dept of Bio. & Med. Sci., Oxford Brookes University, Oxford OX3 0BP, UK;
| | - Harpal Randeva
- Institute of Precision Diagnostics and Translational Medicine, UHCW NHS Trust, Coventry CV4 7AL, UK; (H.R.); (D.G.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Dimitris Grammatopoulos
- Institute of Precision Diagnostics and Translational Medicine, UHCW NHS Trust, Coventry CV4 7AL, UK; (H.R.); (D.G.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Elisabete Silva
- College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK;
- Correspondence: (E.S.); (E.K.)
| | - Emmanouil Karteris
- College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK;
- Correspondence: (E.S.); (E.K.)
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21
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Stanirowski PJ, Lipa M, Bomba-Opoń D, Wielgoś M. Expression of placental glucose transporter proteins in pregnancies complicated by fetal growth disorders. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2020; 123:95-131. [PMID: 33485490 DOI: 10.1016/bs.apcsb.2019.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
During pregnancy fetal growth disorders, including fetal macrosomia and fetal growth restriction (FGR) are associated with numerous maternal-fetal complications, as well as due to the adverse effect of the intrauterine environment lead to an increased morbidity in adult life. Accumulating evidence suggests that occurrence of fetal macrosomia or FGR, may be associated with alterations in the transfer of nutrients across the placenta, in particular of glucose. The placental expression and activity of specific GLUT transporters are the main regulatory factors in the process of maternal-fetal glucose exchange. This review article summarizes the results of previous studies on the expression of GLUT transporters in the placenta, concentrating on human pregnancies complicated by intrauterine fetal growth disorders. Characteristics of each transporter protein found in the placenta is presented, alterations in the location and expression of GLUT isoforms observed in individual placental compartments are described, and the factors regulating the expression of selected GLUT proteins are examined. Based on the above data, the potential function of each GLUT isoform in the maternal-fetal glucose transfer is determined. Further on, a detailed analysis of changes in the expression of glucose transporters in pregnancies complicated by fetal growth disorders is given, and significance of these modifications for the pathogenesis of fetal macrosomia and FGR is discussed. In the final part novel interventional approaches that might reduce the risk associated with abnormalities of intrauterine fetal growth through modifications of placental GLUT-mediated glucose transfer are explored.
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Affiliation(s)
- Paweł Jan Stanirowski
- 1(st) Department of Obstetrics and Gynecology, Medical University of Warsaw, Warsaw, Poland; Club 35. Polish Society of Gynecologists and Obstetricians, Warsaw, Poland
| | - Michał Lipa
- 1(st) Department of Obstetrics and Gynecology, Medical University of Warsaw, Warsaw, Poland; Club 35. Polish Society of Gynecologists and Obstetricians, Warsaw, Poland
| | - Dorota Bomba-Opoń
- 1(st) Department of Obstetrics and Gynecology, Medical University of Warsaw, Warsaw, Poland
| | - Mirosław Wielgoś
- 1(st) Department of Obstetrics and Gynecology, Medical University of Warsaw, Warsaw, Poland
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22
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Huang B, Huang C, Zhao H, Zhu W, Wang B, Wang H, Chen J, Xiao T, Niu J, Zhang J. Impact of GPR1 signaling on maternal high-fat feeding and placenta metabolism in mice. Am J Physiol Endocrinol Metab 2019; 316:E987-E997. [PMID: 30835511 DOI: 10.1152/ajpendo.00437.2018] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Chemerin and G protein-coupled receptor 1 (GPR1) are increased in serum and placenta in mice during pregnancy. Interestingly, we observed increased serum chemerin levels and decreased GPR1 expression in placenta of high-fat-diet-fed mice compared with chow-fed mice at gestational day 18. GPR1 protein and gene levels were significantly decreased in gestational diabetes mellitus (GDM) patient placentas. Therefore, we hypothesized that chemerin/GPR1 signaling might participate in the pathogenic mechanism of GDM. We investigated the role of GPR1 in carbohydrate homeostasis during pregnancy using pregnant mice transfected with small interfering RNA for GPR1 or a negative control. GPR1 knockdown exacerbated glucose intolerance, disrupted lipid metabolism, and decreased β-cell proliferation and insulin levels. Glucose transport protein-3 and fatty acid binding protein-4 were downregulated with reducing GPR1 in vivo and in vitro via phosphorylated AKT pathway. Taken together, our findings first demonstrate the expression of GPR1, the characterization of its direct biological effects in humans and mice, as well as the molecular mechanism that indicates the role of GPR1 signaling in maternal metabolism during pregnancy, suggesting a novel feedback mechanism to regulate glucose balance during pregnancy, and GPR1 could be a potential target for the detection and therapy of GDM.
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Affiliation(s)
- Binbin Huang
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
- Shenzhen College of Advanced and Technology, University of Chinese Academy of Sciences , Shenzhen , China
| | - Chen Huang
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
- Shenzhen College of Advanced and Technology, University of Chinese Academy of Sciences , Shenzhen , China
| | - Huashan Zhao
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
| | - Wen Zhu
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
- Shenzhen College of Advanced and Technology, University of Chinese Academy of Sciences , Shenzhen , China
| | - Baobei Wang
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
| | - Hefei Wang
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
| | - Jie Chen
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
| | - Tianxia Xiao
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
| | - Jianmin Niu
- Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University , Shenzhen , China
| | - Jian Zhang
- Centre for Reproduction and Health Development, Shenzhen Institutes of Advanced and Technology, Chinese Academy of Sciences , Shenzhen , China
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23
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Son JS, Liu X, Tian Q, Zhao L, Chen Y, Hu Y, Chae SA, de Avila JM, Zhu MJ, Du M. Exercise prevents the adverse effects of maternal obesity on placental vascularization and fetal growth. J Physiol 2019; 597:3333-3347. [PMID: 31115053 DOI: 10.1113/jp277698] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/17/2019] [Indexed: 12/12/2022] Open
Abstract
KEY POINTS Maternal exercise improves the metabolic health of maternal mice challenged with a high-fat diet. Exercise intervention of obese mothers prevents fetal overgrowth. Exercise intervention reverses impaired placental vascularization in obese mice. Maternal exercise activates placental AMP-activated protein kinase, which was inhibited as a result of maternal obesity. ABSTRACT More than one-third of pregnant women in the USA are obese and maternal obesity (MO) negatively affects fetal development, which predisposes offspring to metabolic diseases. The placenta mediates nutrient delivery to fetuses and its function is impaired as a result of MO. Exercise ameliorates metabolic dysfunction resulting from obesity, although its effect on placental function of obese mothers has not been explored. In the present study, C57BL/6J female mice were randomly assigned into two groups fed either a control or a high-fat diet (HFD) and then the mice on each diet were further divided into two subgroups with/without exercise. In HFD-induced obese mice, daily treadmill exercise during pregnancy reduced body weight gain, lowered serum glucose and lipid concentration, and improved insulin sensitivity of maternal mice. Importantly, maternal exercise prevented fetal overgrowth (macrosomia) induced by MO. To further examine the preventive effects of exercise on fetal overgrowth, placental vascularization and nutrient transporters were analysed. Vascular density and the expression of vasculogenic factors were reduced as a result of MO but were recovered by maternal exercise. On the other hand, the contents of nutrient transporters were not substantially altered by MO or exercise, suggesting that the protective effects of exercise in MO-induced fetal overgrowth were primarily a result of the alteration of placental vascularization and improved maternal metabolism. Furthermore, exercise enhanced downstream insulin signalling and activated AMP-activated protein kinase in HFD placenta. In sum, maternal exercise prevented fetal overgrowth induced by MO, which was associated with improved maternal metabolism and placental vascularization in obese mothers with exercise.
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Affiliation(s)
- Jun Seok Son
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Xiangdong Liu
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Qiyu Tian
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Liang Zhao
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Yanting Chen
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Yun Hu
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Song Ah Chae
- Department of Movement Sciences, University of Idaho, Moscow, ID, USA
| | - Jeanene M de Avila
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA, USA
| | - Min Du
- Nutrigenomics and Growth Biology Laboratory, Department of Animal Sciences, Washington State University, Pullman, WA, USA
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24
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Huang J, Frid M, Gewitz MH, Fallon JT, Brown D, Krafsur G, Stenmark K, Mathew R. Hypoxia-induced pulmonary hypertension and chronic lung disease: caveolin-1 dysfunction an important underlying feature. Pulm Circ 2019; 9:2045894019837876. [PMID: 30806156 PMCID: PMC6434444 DOI: 10.1177/2045894019837876] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 02/22/2019] [Indexed: 12/30/2022] Open
Abstract
Caveolin-1 (cav-1) has been shown to play a significant role in the pathogenesis of pulmonary hypertension (PH). In the monocrotaline model of PH, the loss of endothelial cav-1 as well as reciprocal activation of proliferative and anti-apoptotic pathways initiate the disease process and facilitate its progression. In order to examine the role of cav-1 in hypoxia-induced PH, we exposed rats and neonatal calves to hypobaric hypoxia and obtained hemodynamic data and assessed the expression of cav-1 and related proteins eNOS, HSP90, PTEN, gp130, PY-STAT3, β-catenin, and Glut1 in the lung tissue. Chronic hypoxic exposure in rats (48 h-4 weeks) and calves (two weeks) did not alter the expression of cav-1, HSP90, or eNOS. PTEN expression was significantly decreased accompanied by PY-STAT3 activation and increased expression of gp130, Glut1, and β-catenin in hypoxic animals. We also examined cav-1 expression in the lung sections from steers with chronic hypoxic disease (Brisket disease) and from patients with chronic lung disease who underwent lung biopsy for medical reasons. There was no cav-1 loss in Brisket disease. In chronic lung disease cases, endothelial cav-1 expression was present, albeit with less intense staining in some cases. In conclusion, hypoxia did not alter the cav-1 expression in experimental models. The presence of cav-1, however, did not suppress hypoxia-induced activation of PY-STAT3 and β catenin, increased gp130 and Glut1 expression, or prevent the PTEN loss, indicating cav-1 dysfunction in hypoxia-induced PH.
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Affiliation(s)
- Jing Huang
- Department of Pediatrics, Maria Fareri Children’s Hospital at Westchester Medical Center, New York Medical College, Valhalla, NY, USA
| | - Maria Frid
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Michael H. Gewitz
- Department of Pediatrics, Maria Fareri Children’s Hospital at Westchester Medical Center, New York Medical College, Valhalla, NY, USA
| | - John T. Fallon
- Department of Pathology, New York Medical College, Valhalla, NY, USA
| | - Dale Brown
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Greta Krafsur
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kurt Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Rajamma Mathew
- Department of Pediatrics, Maria Fareri Children’s Hospital at Westchester Medical Center, New York Medical College, Valhalla, NY, USA
- Department of Physiology, New York Medical College, Valhalla, NY, USA
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25
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Feng C, Jin Z, Chi X, Zhang B, Wang X, Sun L, Fan J, Sun Q, Zhang X. SHBG expression is correlated with PI3K/AKT pathway activity in a cellular model of human insulin resistance. Gynecol Endocrinol 2018; 34:567-573. [PMID: 29298529 DOI: 10.1080/09513590.2017.1411474] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Decreased sex hormone-binding globulin (SHBG) expression is an independent risk factor for gestational diabetes mellitus(GDM).However, the mechanisms that link low SHBG expression and insulin resistance in GDM is unclear. In this study, we investigated the placenta SHBG in the PI3K/AKT pathway to reveal the mechanism that links decreased SHBG to insulin resistance. A insulin resistance cells model was established by the method of insulin stimulation. Two groups were set up, HTR8/Svneo cells and insulin-resistance cells of HTR8/SVneo. The expression of SHBG and PI3K/AKT associated factors were detected using real-time PCR and western blotting and their correlations were analyzed. The results showed that SHBG protein and mRNA levels in insulin resistance cells were both significantly lower. Along with decreased SHBG expression, the mRNA and protein levels of IRS-1, IRS-2, PI3Kp85α and GLUT-3, GLUT-4 decreased significantly. However, the expression of GLUT-1 increased significantly. Pearson correlation analysis showed that SHBG mRNA expression was positively correlated with IRS-1, IRS-2 and PI3Kp85α mRNA levels. According to the results, low SHBG expression not only participates in the development of local insulin resistance, but may also play an important role in PI3K/AKT pathway-mediated systemic insulin resistance and gestational diabetes.
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Affiliation(s)
- Chong Feng
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Zhen Jin
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Xinshu Chi
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Bao Zhang
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Xiaoyan Wang
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Lei Sun
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Jiehui Fan
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Qian Sun
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
| | - Xuan Zhang
- a Department of Obstetrics and Gynecology , Shengjing Hospital Affiliated to China Medical University , Shenyang , China
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26
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High glucose suppresses the viability and proliferation of HTR‑8/SVneo cells through regulation of the miR‑137/PRKAA1/IL‑6 axis. Int J Mol Med 2018; 42:799-810. [PMID: 29786111 PMCID: PMC6034938 DOI: 10.3892/ijmm.2018.3686] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 04/27/2018] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to investigate the mechanism underlying the high glucose (HG)-associated regulation of HTR-8/SVneo cell viability and proliferation during gestational diabetes mellitus (GDM), and to verify the association of microRNA (miR)-137, protein kinase AMP-activated catalytic subunit α1 (PRKAA1) and interlukin-6 (IL-6). miR-137-overexpressing and negative control HTR-8/SVneo cells were established by lentiviral vector infection. Cell Counting Kit-8 and colony formation assays were used to analyze the viability and proliferation of HTR-8/SVneo cells. Reverse transcription-quantitative polymerase chain reaction analysis was used to determine the transcriptional activity of miR-137, PRKAA1 and Il-6, and ELISA and western blot analysis were used to measure the protein levels of IL-6 and PRKAA1, respectively. It was demonstrated that PRKAA1 was decreased in the placental tissues of women with GDM and HG-treated HTR-8/SVneo cells, and that HG upregulated miR-137 and IL-6 in trophoblasts. The overexpression of miR-137 decreased levels of PRKAA1 and increased levels of IL-6 in the HTR-8/SVneo cells. An inhibitor of PRKAA1 promoted the secretion of IL-6, whereas an agonist of PRKAA1 suppressed the production of IL-6. HG treatment and the overexpression of miR-137 reduced the viability and proliferation of HTR-8/SVneo cells in vitro, whereas the activation of PRKAA1 or incubation with IL-6 antibody reversed these effects. Overall, it was concluded that HG suppressed the viability and proliferation of trophoblast cells through the miR-137/PRKAA1/IL-6 axis, which may contribute to pathological changes of placental tissues in GDM.
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27
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Villalobos-Labra R, Silva L, Subiabre M, Araos J, Salsoso R, Fuenzalida B, Sáez T, Toledo F, González M, Quezada C, Pardo F, Chiarello DI, Leiva A, Sobrevia L. Akt/mTOR Role in Human Foetoplacental Vascular Insulin Resistance in Diseases of Pregnancy. J Diabetes Res 2017; 2017:5947859. [PMID: 29104874 PMCID: PMC5618766 DOI: 10.1155/2017/5947859] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 08/15/2017] [Indexed: 12/25/2022] Open
Abstract
Insulin resistance is characteristic of pregnancies where the mother shows metabolic alterations, such as preeclampsia (PE) and gestational diabetes mellitus (GDM), or abnormal maternal conditions such as pregestational maternal obesity (PGMO). Insulin signalling includes activation of insulin receptor substrates 1 and 2 (IRS1/2) as well as Src homology 2 domain-containing transforming protein 1, leading to activation of 44 and 42 kDa mitogen-activated protein kinases and protein kinase B/Akt (Akt) signalling cascades in the human foetoplacental vasculature. PE, GDM, and PGMO are abnormal conditions coursing with reduced insulin signalling, but the possibility of the involvement of similar cell signalling mechanisms is not addressed. This review aimed to determine whether reduced insulin signalling in PE, GDM, and PGMO shares a common mechanism in the human foetoplacental vasculature. Insulin resistance in these pathological conditions results from reduced Akt activation mainly due to inhibition of IRS1/2, likely due to the increased activity of the mammalian target of rapamycin (mTOR) resulting from lower activity of adenosine monophosphate kinase. Thus, a defective signalling via Akt/mTOR in response to insulin is a central and common mechanism of insulin resistance in these diseases of pregnancy. In this review, we summarise the cell signalling mechanisms behind the insulin resistance state in PE, GDM, and PGMO focused in the Akt/mTOR signalling pathway in the human foetoplacental endothelium.
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Affiliation(s)
- Roberto Villalobos-Labra
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
| | - Luis Silva
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen (UMCG), 9700 RB Groningen, Netherlands
| | - Mario Subiabre
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
| | - Joaquín Araos
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
| | - Rocío Salsoso
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
- Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain
| | - Bárbara Fuenzalida
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
| | - Tamara Sáez
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen (UMCG), 9700 RB Groningen, Netherlands
| | - Fernando Toledo
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
- Department of Basic Sciences, Faculty of Sciences, Universidad del Bío-Bío, 3780000 Chillán, Chile
| | - Marcelo González
- Vascular Physiology Laboratory, Department of Physiology, Faculty of Biological Sciences, Universidad de Concepción, 4070386 Concepción, Chile
| | - Claudia Quezada
- Institute of Biochemistry and Microbiology, Science Faculty, Universidad Austral de Chile, 5110566 Valdivia, Chile
| | - Fabián Pardo
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
- Metabolic Diseases Research Laboratory, Center of Research, Development and Innovation in Health-Aconcagua Valley, School of Medicine, Faculty of Medicine, Universidad de Valparaíso, San Felipe Campus, 2172972 San Felipe, Chile
| | - Delia I. Chiarello
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
| | - Andrea Leiva
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
| | - Luis Sobrevia
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, 8330024 Santiago, Chile
- Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain
- University of Queensland Centre for Clinical Research (UQCCR), Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, Brisbane, QLD 4029, Australia
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