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Lei J, Zhao M, Li L, Ji B, Xu T, Sun M, Chen J, Qiu J, Gao Q. Research progress of placental vascular pathophysiological changes in pregnancy-induced hypertension and gestational diabetes mellitus. Front Physiol 2022; 13:954636. [PMID: 35928561 PMCID: PMC9343869 DOI: 10.3389/fphys.2022.954636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/30/2022] [Indexed: 01/11/2023] Open
Abstract
The placenta is a vital organ for fetal development, providing the fetus with nutrients, oxygen, and other important factors. Placenta is rich in blood vessels. Abnormal placental vascular function and blood circulation may lead to insufficient blood supply to the fetus in the uterus, leading to serious consequences such as pregnancy complications, fetal distress and even stillbirth. Pregnancy-induced hypertension (PIH) and gestational diabetes mellitus (GDM) are common complications of pregnancy. Recent studies report that pregnancy complications are often accompanied by changes in placental vascular structure and function. What are the physiological characteristics of human placental blood vessels? What are the pathological changes in the state of PIH and GDM? What are the relationships between these pathological changes and the occurrence of these pregnancy complications? Answers to these questions not only increase the understanding of placental vascular characteristics, but also provide important information for revealing the pathological mechanism of PIH and GDM. This article will summarize the research on the pathological changes of placental blood vessels in PIH and GDM, hoping to further unravel the physiological and pathological characteristics of placental blood vessels in the state of PIH and GDM, provide information for guiding clinical treatment for PIH and GDM.
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Affiliation(s)
- Jiahui Lei
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Meng Zhao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lingjun Li
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bingyu Ji
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ting Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Miao Sun
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jie Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Jie Chen, ; Junlan Qiu, ; Qinqin Gao,
| | - Junlan Qiu
- Department of Oncology and Hematology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, China
- *Correspondence: Jie Chen, ; Junlan Qiu, ; Qinqin Gao,
| | - Qinqin Gao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Jie Chen, ; Junlan Qiu, ; Qinqin Gao,
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Yang Y, Guo F, Peng Y, Chen R, Zhou W, Wang H, OuYang J, Yu B, Xu Z. Transcriptomic Profiling of Human Placenta in Gestational Diabetes Mellitus at the Single-Cell Level. Front Endocrinol (Lausanne) 2021; 12:679582. [PMID: 34025588 PMCID: PMC8139321 DOI: 10.3389/fendo.2021.679582] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/14/2021] [Indexed: 12/13/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is associated with an increased risk of adverse pregnancy outcomes. Increasing evidence shows that placentation defects may play important roles in GDM. However, our understanding of the human placenta remains limited. In this study, we generated a comprehensive transcriptomic profile of cellular signatures and transcriptomes in the human placenta in GDM using single-cell RNA sequencing (scRNA-seq), constructed a comprehensive cell atlas, and identified cell subtypes and subtype-specific marker genes. In addition, we investigated the placental cellular function and intercellular interactions in GDM. These findings help to elucidate the molecular mechanisms of GDM, and may facilitate the development of new approaches to GDM treatment and prevention.
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Affiliation(s)
- Yuqi Yang
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Fang Guo
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Yue Peng
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Rong Chen
- International Genome Center, Jiangsu University, Zhenjiang, China
| | - Wenbo Zhou
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Huihui Wang
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Jun OuYang
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Bin Yu
- Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, China
- *Correspondence: Bin Yu, ; Zhengfeng Xu,
| | - Zhengfeng Xu
- Womens Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Bin Yu, ; Zhengfeng Xu,
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3
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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: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [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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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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Murthi P, Vaillancourt C. RETRACTED: Placental serotonin systems in pregnancy metabolic complications associated with maternal obesity and gestational diabetes mellitus. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165391. [PMID: 30738809 DOI: 10.1016/j.bbadis.2019.01.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 12/12/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).
The publication was retracted by request of the authors following an investigation by Monash University performed following its Procedures for Investigating Code Breaches and in accordance with the Australian Code for the Responsible Conduct of Research.
The University concluded on the balance of probability that a significant part of the text in the paper was included without knowledge, without consent and without correct attribution of the original author who, at the time, was a student at the University. The results discussed in the review article are still scientifically valid.
☆
This article is part of a Special Issue entitled: Membrane Transporters and Receptors in Pregnancy Metabolic Complications edited by Luis Sobrevia.
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Affiliation(s)
- Padma Murthi
- Department of Medicine, School of Clinical Sciences, Department of Physiology, Monash University, Clayton, Victoria, Australia; Hudson Institute of Medical Research, The Ritchie Centre, Clayton, Victoria, Australia; Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, Victoria, Australia.
| | - Cathy Vaillancourt
- INRS-Institut Armand-Frappier, Université du Québec and Biomed Research Center, 531 Boulevard des Prairies, Laval, QC H7V 1B7, Canada; Center for Interdisciplinary Research on Well-Being, Health, Society and Environment, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada
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Affiliation(s)
- Luc Maroteaux
- UMR-S839 INSERM, Sorbonne Université, Institut du Fer à Moulin, Paris, France
| | - Fusun Kilic
- Departments of Biochemistry and Molecular Biology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
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Post-translational modifications of serotonin transporter. Pharmacol Res 2019; 140:7-13. [PMID: 30394319 DOI: 10.1016/j.phrs.2018.10.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/18/2018] [Accepted: 10/18/2018] [Indexed: 11/17/2022]
Abstract
The serotonin transporter (SERT) is an oligomeric glycoprotein with two sialic acid residues on each of two complex oligosaccharide molecules. Studies using in vivo and in vitro model systems demonstrated that diverse post-translational modifications, including phosphorylation, glycosylation, serotonylation, and disulfide bond formation, all favorably influences SERT conformation and allows the transporter to function most efficiently. This review discusses the post-translational modifications and their importance on the structure, maturation, and serotonin (5-HT) uptake ability of SERT. Finally, we discuss how these modifications are altered in diabetes mellitus and subsequently impairs the 5-HT uptake ability of SERT.
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Kilic F, Moutkine I, Maroteaux L. Association with serotonin transporter enables the phosphorylation of insulin receptor in placenta. CURRENT TOPICS IN BIOCHEMICAL RESEARCH 2019; 20:65-78. [PMID: 38327526 PMCID: PMC10849269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Upon binding to insulin, the β-subunit of insulin receptor (IR) is phosphorylated and instantly activates intracellular signaling. A defect in this process causes the development of several metabolic disorders including non-insulin-dependent diabetes, such as type 2 and gestational diabetes mellitus (GDM). Under diabetic conditions the phosphorylation of IR in placenta, but not in platelets, is impaired. Interestingly the cellular distribution of the serotonin transporter (SERT), which utilizes the insulin signaling for posttranslational modification, shows tissue-type-dependent variation: SERT function is impaired in GDM-associated placenta, but not in platelets. In order to understand the correlation between IR, SERT and their tissue-type-dependent features, we tested an association between SERT and IR and whether this association affects the phosphorylation of IR. Using various approaches, we demonstrated a physical association between the Carboxyl terminal of SERT and the β-subunit of IR. This association was found on the plasma membrane of the placenta and the platelets. Next, the contribution of the SERT-IR association to the phosphorylation of IR was analyzed in heterologous and endogenous expression systems following insulin-treatment. The in vivo impact of SERT-IR association on the phosphorylation of IR was explored in placenta and platelets of SERT gene knockout (KO) mice. The IR phosphorylation was significantly downregulated only in the placenta, but not in platelets of SERT-KO mice. These findings are supported by time course experiments, which demonstrate that the phosphorylation of IR occurs vis-a-vis IR-SERT association, and at least one of the IR binding domains is identified as the carboxyl-terminus of SERT. These findings suggest an important role for IR-SERT association in maintaining the phosphorylation of IR and regulating the insulin signaling in placenta.
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Affiliation(s)
- Fusun Kilic
- Department of Biology, Merced College, Merced, California, USA
| | - Imane Moutkine
- UMR-S1270 INSERM, Sorbonne Université, Institut du Fer à Moulin, Paris, France
| | - Luc Maroteaux
- UMR-S1270 INSERM, Sorbonne Université, Institut du Fer à Moulin, Paris, France
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Ma Y, Li S, Wei X, Huang J, Lai M, Wang N, Huang Q, Zhao L, Peng Y, Wang Y. Comparison of serum concentrations of humanin in women with and without gestational diabetes mellitus. Gynecol Endocrinol 2018; 34:1064-1067. [PMID: 29909696 DOI: 10.1080/09513590.2018.1482869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Humanin (MT-RNR2) is an endogenous polypeptide that is involved in many diseases, including T2DM. Gestational diabetes mellitus (GDM) is defined as hyperglycemia during pregnancy. The aim of this study was to evaluate serum humanin levels in women with or without GDM and to elucidate possible correlations with anthropometric parameters, metabolic parameters and the incidence of GDM. Eighty-four women with GDM and 73 control women were enrolled in this study. The clinical and biochemical parameters of all subjects were determined. Serum humanin levels were measured by an ELISA. Serum humanin levels were significantly lower in women with GDM than in control women. Moreover, humanin levels were significantly negatively correlated with the presence of GDM, body weight, BMI at 24 weeks of gestation, TG, FPG, 1 hPG, 2 hPG, FINS, and HOMA-IR. In contrast, humanin levels were significantly positively correlated with FT3 and FT4. A binary logistic analysis showed that humanin levels were associated with the incidence of GDM. Additional follow-up studies are needed to highlight whether and how decreased humanin levels play an important role in GDM.
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Affiliation(s)
- Yuhang Ma
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Shumei Li
- b Shanghai First School of Clinical Medicine , Nanjing Medical University , Shanghai , China
- c Department of Endocrinology and Metabolism , Shanghai Fourth People's Hospital , Shanghai , China
| | - Xiaohui Wei
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Jingjing Huang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Mengyu Lai
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Nian Wang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Qianfang Huang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Li Zhao
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yongde Peng
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yufan Wang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
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Yang S, Si L, Fan L, Jian W, Pei H, Lin R. Polysaccharide IV from Lycium barbarum L. Improves Lipid Profiles of Gestational Diabetes Mellitus of Pregnancy by Upregulating ABCA1 and Downregulating Sterol Regulatory Element-Binding Transcription 1 via miR-33. Front Endocrinol (Lausanne) 2018; 9:49. [PMID: 29527188 PMCID: PMC5829030 DOI: 10.3389/fendo.2018.00049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 02/05/2018] [Indexed: 01/24/2023] Open
Abstract
Lycium barbarum L. (LBL) has beneficial effects on gestational diabetes mellitus (GDM) but the related mechanism remains unclear. Polysaccharides of LBL (LBLP) are the main bioactive components of LBL. miR-33, ATP-binding cassette transporter A1 (ABCA1) and sterol regulatory element-binding transcription 1 (SREBF1) affect lipid profiles, which are associated with GDM risk. LBLP may exert protective against GDM by affecting these molecules. Four LBLP fractions: LBLP-I, LBLP-II, LBLP-III, and LBLP-IV were isolated from LBL and further purified by using DEAE-Sephadex column. The effects of purified each fraction on pancreatic beta cells were comparatively evaluated. A total of 158 GDM patients were recruited and randomly divided into LBL group (LG) and placebo group (CG). miR-33 levels, lipid profiles, insulin resistance and secretory functions were measured. The association between serum miR-33 levels and lipid profiles were evaluated by using Spearman's rank-order correlation test. After 4-week therapy, LBL reduced miR-33 level, insulin resistance and increased insulin secretion of GDM patients. LBL increased the levels of ABCA1, high-density lipoprotein cholesterol (HDL-C) and reduced miR-33, SREBF1, low-density lipoprotein cholesterol (LDL-C), total cholesterol (TC), triglyceride (TG), and malondialdehyde. Homeostatic model assessment of β-cell function and insulin resistance was lower in LG than in CG, whereas homeostatic model assessment of β-cell function and insulin secretory function was higher in LG than in CG. There was a strong positive association between miR-33 level and TG, or TC and or LDL-C, and a strong negative association between miR-33 level and HDL-C. The levels of miR-33 had negative relation with ABCA1 and positive relation with SREBF1. ABCA1 has negative relation with TG, TC, and LDL-C and positive relation with HDL-C. Inversely, SREBF1 had positive relation with TG, TC, and LDL-C and negative relation with HDL-C. The main bioactive compound LBLP-IV of LBL increased insulin secretion of beta cells and the levels of ABCA1, and reduced miR-33 levels and SREBF1 in beta cells. However, LBLP-IV could not change the levels of these molecules anymore when miR-33 was overexpressed or silenced. LBLP-IV had the similar effects with LBL on beta cells while other components had no such effects. Thus, LBLP-IV from LBL improves lipid profiles by upregulating ABCA1 and downregulating SREBF1 via miR-33.
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Affiliation(s)
- Shuli Yang
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Lihui Si
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Limei Fan
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Wenwen Jian
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Huilin Pei
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Ruixin Lin
- Department of Hepatobiliary and Pancreatic Surgery, The Second Hospital of Jilin University, Changchun, China
- *Correspondence: Ruixin Lin,
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Bronson SL, Chan JC, Bale TL. Sex-Specific Neurodevelopmental Programming by Placental Insulin Receptors on Stress Reactivity and Sensorimotor Gating. Biol Psychiatry 2017; 82:127-138. [PMID: 28168960 PMCID: PMC5483189 DOI: 10.1016/j.biopsych.2016.12.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 11/22/2016] [Accepted: 12/09/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND Diabetes, obesity, and overweight are prevalent pregnancy complications that predispose offspring to neurodevelopmental disorders, including autism, attention-deficit/hyperactivity disorder, and schizophrenia. Although male individuals are three to four times more likely than female individuals to develop these disorders, the mechanisms driving the sex specificity of disease vulnerability remain unclear. Because defective placental insulin receptor (InsR) signaling is a hallmark of pregnancy metabolic dysfunction, we hypothesized that it may be an important contributor and novel mechanistic link to sex-specific neurodevelopmental changes underlying disease risk. METHODS We used Cre/loxP transgenic mice to conditionally target InsRs in fetally derived placental trophoblasts. Adult offspring were evaluated for effects of placental trophoblast-specific InsR deficiency on stress sensitivity, cognitive function, sensorimotor gating, and prefrontal cortical transcriptional reprogramming. To evaluate molecular mechanisms driving sex-specific outcomes, we assessed genome-wide expression profiles in the placenta and fetal brain. RESULTS Male, but not female, mice with placental trophoblast-specific InsR deficiency showed a significantly increased hypothalamic-pituitary-adrenal axis stress response and impaired sensorimotor gating, phenotypic effects that were associated with dysregulated nucleotide metabolic processes in the male prefrontal cortex. Within the placenta, InsR deficiency elicited changes in gene expression, predominantly in male mice, reflecting potential shifts in vasculature, amino acid transport, serotonin homeostasis, and mitochondrial function. These placental disruptions were associated with altered gene expression profiles in the male fetal brain and suggested delayed cortical development. CONCLUSIONS Together, these data demonstrate the novel role of placental InsRs in sex-specific neurodevelopment and reveal a potential mechanism for neurodevelopmental disorder risk in pregnancies complicated by maternal metabolic disorders, including diabetes and obesity.
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Affiliation(s)
- Stefanie L Bronson
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jennifer C Chan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Tracy L Bale
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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Abstract
We tested the hypothesis that gestational diabetes mellitus (GDM) alters the DNA methylation pattern of the fetal serotonin transporter gene (SLC6A4), and examined the functional relevance of DNA methylation for regulation of the SLC6A4 expression in the human placenta. The study included 50 mother-infant pairs. Eighteen mothers were diagnosed with GDM and 32 had normal glucose tolerance (NGT). All neonates were of normal birth weight and born at term by planned Cesarean section. DNA and RNA were isolated from samples of tissue collected from the fetal side of the placenta immediately after delivery. DNA methylation was quantified at 7 CpG sites within the SLC6A4 distal promoter region using PCR amplification of bisulfite treated DNA and subsequent DNA sequencing. SLC6A4 mRNA levels were measured by reverse transcription—quantitative PCR (RT-qPCR). Functional SLC6A4 polymorphisms (5HTTLPR, STin2, rs25531) were genotyped using standard PCR-based procedures. Average DNA methylation across the 7 analyzed loci was decreased in the GDM as compared to the NGT group (by 27.1%, p = 0.037) and negatively correlated, before and after adjustment for potential confounder/s, with maternal plasma glucose levels at the 24th to 28th week of gestation (p<0.05). Placental SLC6A4 mRNA levels were inversely correlated with average DNA methylation (p = 0.010) while no statistically significant association was found with the SLC6A4 genotypes (p>0.05). The results suggest that DNA methylation of the fetal SLC6A4 gene is sensitive to the maternal metabolic state in pregnancy. They also indicate a predominant role of epigenetic over genetic mechanisms in the regulation of SLC6A4 expression in the human placenta. Longitudinal studies in larger cohorts are needed to verify these results and determine to which degree placental SLC6A4 changes may contribute to long-term outcomes of infants exposed to GDM.
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