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Jiang Z, Chen L, Wang T, Zhao J, Liu S, He Y, Wang L, Wu H. Autophagy accompanying the developmental process of male germline stem cells. Cell Tissue Res 2024:10.1007/s00441-024-03910-w. [PMID: 39141056 DOI: 10.1007/s00441-024-03910-w] [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: 02/22/2024] [Accepted: 07/25/2024] [Indexed: 08/15/2024]
Abstract
Germline stem cells are a crucial type of stem cell that can stably pass on genetic information to the next generation, providing the necessary foundation for the reproduction and survival of organisms. Male mammalian germline stem cells are unique cell types that include primordial germ cells and spermatogonial stem cells. They can differentiate into germ cells, such as sperm and eggs, thereby facilitating offspring reproduction. In addition, they continuously generate stem cells through self-renewal mechanisms to support the normal function of the reproductive system. Autophagy involves the use of lysosomes to degrade proteins and organelles that are regulated by relevant genes. This process plays an important role in maintaining the homeostasis of germline stem cells and the synthesis, degradation, and recycling of germline stem cell products. Recently, the developmental regulatory mechanism of germline stem cells has been further elucidated, and autophagy has been shown to be involved in the regulation of self-renewal and differentiation of germline stem cells. In this review, we introduce autophagy accompanying the development of germline stem cells, focusing on the autophagy process accompanying the development of male spermatogonial stem cells and the roles of related genes and proteins. We also briefly outline the effects of autophagy dysfunction on germline stem cells and reproduction.
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Affiliation(s)
- Zhuofei Jiang
- Department of Gynecology, Foshan Woman and Children Hospital, Foshan, China
- Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Liji Chen
- Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Department of Reproductive Medicine, Guangzhou Huadu District Maternal and Child Health Care Hospital (Huzhong Hospital of Huadu District), Guangzhou, China
| | - Tao Wang
- Department of Surgery, Longjiang Hospital of Shunde District, Foshan, China
| | - Jie Zhao
- Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Shuxian Liu
- Department of Science and Education, Guangzhou Huadu District Maternal and Child Health Care Hospital (Huzhong Hospital of Huadu District), Guangzhou, China
| | - Yating He
- Department of Obstetrics, The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, China
| | - Liyun Wang
- Department of Reproductive Medicine, Guangzhou Huadu District Maternal and Child Health Care Hospital (Huzhong Hospital of Huadu District), Guangzhou, China.
| | - Hongfu Wu
- Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China.
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Zhang R, Feng Y, Nie P, Wang W, Wu H, Wan X, Xu H, Fu F. Polystyrene microplastics disturb maternal glucose homeostasis and induce adverse pregnancy outcomes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116492. [PMID: 38795415 DOI: 10.1016/j.ecoenv.2024.116492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 05/13/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Pregnant women are a special group that is sensitive to adverse external stimuli, causing metabolic abnormalities and adverse pregnancy outcomes. Microplastics (MPs), an environmental pollutant widely used in various fields, can induce a variety of toxic responses in mammals. Recent studies verified an association between MPs and metabolic disorders. Our research built a gestational mouse model in which polystyrene microplastics (PS-MPs) of 1 μm size were consumed at concentrations of 0.1, 1, and 10 mg/L during pregnancy. Results indicated that PS-MPs induced placental malfunction and fetal growth retardation. Significant glucose disorders, decreased liver function, hepatic inflammation, and oxidative stress were also observed after PS-MPs exposure. The hepatic SIRT1/IRS1/PI3K pathway was inhibited in the 10 mg/L PS-MPs exposure group. Our study found that PS-MPs activated inflammatory response and oxidative stress by increasing hepatic lipopolysaccharide (LPS) that inhibited the hepatic SIRT1/IRS1/PI3K pathway, ultimately leading to insulin resistance, glucose metabolism disorders, and adverse pregnancy outcomes. This study provides a basis for preventing environment-related gestational diabetes and concomitant adverse pregnancy outcomes.
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Affiliation(s)
- Ruiying Zhang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Yueying Feng
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Penghui Nie
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Wanzhen Wang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China
| | - Hua Wu
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Xianxian Wan
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China
| | - Hengyi Xu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
| | - Fen Fu
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, China.
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O'Donnell MG, Stumpp L, Gallaher MJ, Powers RW. Pre-pregnancy stress induces maternal vascular dysfunction during pregnancy and postpartum. Reprod Sci 2023; 30:3197-3211. [PMID: 37219786 PMCID: PMC10204668 DOI: 10.1007/s43032-023-01248-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 04/21/2023] [Indexed: 05/24/2023]
Abstract
An estimated 20% of women suffer from a stress-related mood disorder including depression and anxiety during and after pregnancy, making these disorders among the most common complications of pregnancy. These stress-related disorders are associated with adverse pregnancy outcomes including gestational hypertension and preeclampsia, which are associated with poor cardiometabolic health postpartum. Despite these associations, the direct impact of stress and related disorders on maternal vascular health, and contributing mechanisms, remain understudied. The aim of this study was to investigate the effect of pre-pregnancy stress on maternal vascular outcomes in a BALB/c mouse model of chronic unpredictable stress. Maternal blood pressure and ex-vivo vascular function were investigated during pregnancy and postpartum. Offspring characteristics were assessed at the end of pregnancy and postpartum. Main findings show that pre-pregnancy stress exposure increased blood pressure during mid and late pregnancy and impaired ex vivo vascular function at the end of pregnancy. These effects persisted into the postpartum period, suggesting a long-term effect of stress on maternal vascular health, which appear to be partially attributable to disruptions in nitric oxide (NO) pathway signaling. These data suggest exposure to stress and related disorders, even prior to pregnancy, can contribute to vascular complications during pregnancy and postpartum.
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Affiliation(s)
- Mary Gemmel O'Donnell
- Magee-Womens Research Institute, Pittsburgh, PA, 15213, USA.
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
- Department of Biology, Thiel College, Greenville, PA, 16125, USA.
| | - Lauren Stumpp
- Magee-Womens Research Institute, Pittsburgh, PA, 15213, USA
| | | | - Robert W Powers
- Magee-Womens Research Institute, Pittsburgh, PA, 15213, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
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Zhou Y, Xu B. New insights into anti-diabetes effects and molecular mechanisms of dietary saponins. Crit Rev Food Sci Nutr 2023; 63:12372-12397. [PMID: 35866515 DOI: 10.1080/10408398.2022.2101425] [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] [Indexed: 12/15/2022]
Abstract
Diabetes mellitus (DM) is a long-term metabolic disorder that manifests as chronic hyperglycemia and impaired insulin, bringing a heavy load on the global health care system. Considering the inevitable side effects of conventional anti-diabetic drugs, saponins-rich natural products exert promising therapeutic properties to serve as safer and more cost-effective alternatives for DM management. Herein, this review systematically summarized the research progress on the anti-diabetic properties of dietary saponins and their underlying molecular mechanisms in the past 20 years. Dietary saponins possessed the multidirectional anti-diabetic capabilities by concurrent regulation of various signaling pathways, such as IRS-1/PI3K/Akt, AMPK, Nrf2/ARE, NF-κB-NLRP3, SREBP-1c, and PPARγ, in liver, pancreas, gut, and skeletal muscle. However, the industrialization and commercialization of dietary saponin-based drugs are confronted with a significant challenge due to the low bioavailability and lack of the standardization. Hence, in-depth evaluations in pharmacological profile, function-structure interaction, drug-signal pathway interrelation are essential for developing dietary saponins-based anti-diabetic treatments in the future.
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Affiliation(s)
- Yifan Zhou
- Food Science and Technology Program, BNU-HKBU United International College, Zhuhai, Guangdong, China
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Baojun Xu
- Food Science and Technology Program, BNU-HKBU United International College, Zhuhai, Guangdong, China
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Easton ZJW, Luo X, Li L, Regnault TRH. The impact of hyperglycemia upon BeWo trophoblast cell metabolic function: A multi-OMICS and functional metabolic analysis. PLoS One 2023; 18:e0283118. [PMID: 36930661 PMCID: PMC10022812 DOI: 10.1371/journal.pone.0283118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 02/23/2023] [Indexed: 03/18/2023] Open
Abstract
Pre-existing and gestationally-developed diabetes mellitus have been linked with impairments in placental villous trophoblast cell metabolic function, that are thought to underlie the development of metabolic diseases early in the lives of the exposed offspring. Previous research using placental cell lines and ex vivo trophoblast preparations have highlighted hyperglycemia is an important independent regulator of placental function. However, it is poorly understood if hyperglycemia directly influences aspects of placental metabolic function, including nutrient storage and mitochondrial respiration, that are altered in term diabetic placentae. The current study examined metabolic and mitochondrial function as well as nutrient storage in both undifferentiated cytotrophoblast and differentiated syncytiotrophoblast BeWo cells cultured under hyperglycemia conditions (25 mM glucose) for 72 hours to further characterize the direct impacts of placental hyperglycemic exposure. Hyperglycemic-exposed BeWo trophoblasts displayed increased glycogen and triglyceride nutrient stores, but real-time functional readouts of metabolic enzyme activity and mitochondrial respiratory activity were not altered. However, specific investigation into mitochondrial dynamics highlighted increased expression of markers associated with mitochondrial fission that could indicate high glucose-exposed trophoblasts are transitioning towards mitochondrial dysfunction. To further characterize the impacts of independent hyperglycemia, the current study subsequently utilized a multi-omics approach and evaluated the transcriptomic and metabolomic signatures of BeWo cytotrophoblasts. BeWo cytotrophoblasts exposed to hyperglycemia displayed increased mRNA expression of ACSL1, HSD11B2, RPS6KA5, and LAP3 and reduced mRNA expression of CYP2F1, and HK2, concomitant with increased levels of: lactate, malonate, and riboflavin metabolites. These changes highlighted important underlying alterations to glucose, glutathione, fatty acid, and glucocorticoid metabolism in BeWo trophoblasts exposed to hyperglycemia. Overall, these results demonstrate that hyperglycemia is an important independent regulator of key areas of placental metabolism, nutrient storage, and mitochondrial function, and these data continue to expand our knowledge on mechanisms governing the development of placental dysfunction.
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Affiliation(s)
- Zachary J W Easton
- Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
| | - Xian Luo
- The Metabolomics Innovation Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Liang Li
- The Metabolomics Innovation Centre, University of Alberta, Edmonton, Alberta, Canada
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Timothy R H Regnault
- Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
- Department of Obstetrics and Gynaecology, London Health Science Centre-Victoria Hospital, London, Ontario, Canada
- Children's Health Research Institute, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
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Chemical inhibition of mitochondrial fission improves insulin signaling and subdues hyperglycemia induced stress in placental trophoblast cells. Mol Biol Rep 2023; 50:493-506. [PMID: 36352179 DOI: 10.1007/s11033-022-07959-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/17/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) is a metabolic complication that affects millions of pregnant women in the world. Placental tissue function is endangered by hyperglycemia during GDM, which is correlated to increased incidences of pregnancy complications. Recently we showed that due to a significant decrease in mitochondrial fusion, mitochondrial dynamics equilibrium is altered in placental tissues from GDM patients. Evidence for the role of reduced mitochondrial fusion in the disruption of mitochondrial function in placental cells is limited. METHODS AND RESULTS Here we show that chemical inhibition of mitochondrial fission in cultured placental trophoblast cells leads to an increase in mitochondrial fusion and improves the physiological state of these cells and hence, their capacity to cope in a hyperglycemic environment. Specifically, mitochondrial fission inhibition led to a reduction in reactive oxygen species (ROS) generation, mitochondrial unfolded protein marker expressions, and mitochondrial depolarization. It supported the increase in mitochondrial antioxidant enzyme expressions as well. Mitochondrial fission inhibition also increases the placental cell insulin sensitivity during hyperglycemia. CONCLUSION Our results suggest that mitochondrial fusion/fission equilibrium is critical for placental cell function and signify the therapeutic potential of small molecule inhibitors of fission during GDM.
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Dodson M, Shakya A, Anandhan A, Chen J, Garcia JG, Zhang DD. NRF2 and Diabetes: The Good, the Bad, and the Complex. Diabetes 2022; 71:2463-2476. [PMID: 36409792 PMCID: PMC9750950 DOI: 10.2337/db22-0623] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
Abstract
Despite decades of scientific effort, diabetes continues to represent an incredibly complex and difficult disease to treat. This is due in large part to the multifactorial nature of disease onset and progression and the multiple organ systems affected. An increasing body of scientific evidence indicates that a key mediator of diabetes progression is NRF2, a critical transcription factor that regulates redox, protein, and metabolic homeostasis. Importantly, while experimental studies have confirmed the critical nature of proper NRF2 function in preventing the onset of diabetic outcomes, we have only just begun to scratch the surface of understanding the mechanisms by which NRF2 modulates diabetes progression, particularly across different causative contexts. One reason for this is the contradictory nature of the current literature, which can often be accredited to model discrepancies, as well as whether NRF2 is activated in an acute or chronic manner. Furthermore, despite therapeutic promise, there are no current NRF2 activators in clinical trials for the treatment of patients with diabetes. In this review, we briefly introduce the transcriptional programs regulated by NRF2 as well as how NRF2 itself is regulated. We also review the current literature regarding NRF2 modulation of diabetic phenotypes across the different diabetes subtypes, including a brief discussion of contradictory results, as well as what is needed to progress the NRF2 diabetes field forward.
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Affiliation(s)
- Matthew Dodson
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Aryatara Shakya
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Annadurai Anandhan
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Jinjing Chen
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Joe G.N. Garcia
- Department of Medicine, University of Arizona Health Sciences, University of Arizona, Tucson, AZ
| | - Donna D. Zhang
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
- Arizona Cancer Center, University of Arizona, Tucson, AZ
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Bao Y, Zhang J, Liu Y, Wu L, Yang J. Identification of human placenta-derived circular RNAs and autophagy related circRNA-miRNA-mRNA regulatory network in gestational diabetes mellitus. Front Genet 2022; 13:1050906. [PMID: 36531251 PMCID: PMC9748685 DOI: 10.3389/fgene.2022.1050906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/10/2022] [Indexed: 09/01/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is a metabolic and reproductive disease with serious risks and adverse health effects. However, the pathophysiological mechanism of GDM, especially the roles of circRNAs in its pathogenesis, is largely unknown. The objective of this study was to identify and investigate the roles of circRNAs in GDM. In the current study, placental circRNA expression profiles of normal controls and GDM patients were analyzed using high-throughput sequencing. Bioinformatics analysis identified a total of 4,955 circRNAs, of which 37 circRNAs were significantly deregulated in GDM placentas compared with NC placentas. GO and KEGG enrichment analyses demonstrated that metabolic process-associated terms and metabolic pathways that may be related to GDM were significantly enriched. The biological characteristics of placenta-derived circRNAs, such as their stability and RNase R resistance, were also validated Bioinformatics prediction. Moreover, we constructed the autophagy related circRNA-miRNA-mRNA regulatory network and further functional analysis revealed that the circCDH2-miR-33b-3p-ULK1 axis may be associated with autophagy in the placentas of GDM patients. Our study indicates that aberrant expression of circRNAs may play roles in autophagy in GDM placentas, providing new insights into GDM.
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Affiliation(s)
- Yindi Bao
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jun Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yi Liu
- Department of Obstetrics and Gynecology, Xiaogan Central Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Lianzhi Wu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jing Yang
- Reproductive Medical Center/Hubei Medical Clinical Research Center for Assisted Reproductive Technology and Embryonic Development, Renmin Hospital of Wuhan University, Wuhan, China
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Monosomy X in isogenic human iPSC-derived trophoblast model impacts expression modules preserved in human placenta. Proc Natl Acad Sci U S A 2022; 119:e2211073119. [PMID: 36161909 DOI: 10.1073/pnas.2211073119] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Mammalian sex chromosomes encode homologous X/Y gene pairs that were retained on the Y chromosome in males and escape X chromosome inactivation (XCI) in females. Inferred to reflect X/Y pair dosage sensitivity, monosomy X is a leading cause of miscarriage in humans with near full penetrance. This phenotype is shared with many other mammals but not the mouse, which offers sophisticated genetic tools to generate sex chromosomal aneuploidy but also tolerates its developmental impact. To address this critical gap, we generated X-monosomic human induced pluripotent stem cells (hiPSCs) alongside otherwise isogenic euploid controls from male and female mosaic samples. Phased genomic variants in these hiPSC panels enable systematic investigation of X/Y dosage-sensitive features using in vitro models of human development. Here, we demonstrate the utility of these validated hiPSC lines to test how X/Y-linked gene dosage impacts a widely used model for human syncytiotrophoblast development. While these isogenic panels trigger a GATA2/3- and TFAP2A/C-driven trophoblast gene circuit irrespective of karyotype, differential expression implicates monosomy X in altered levels of placental genes and in secretion of placental growth factor (PlGF) and human chorionic gonadotropin (hCG). Remarkably, weighted gene coexpression network modules that significantly reflect these changes are also preserved in first-trimester chorionic villi and term placenta. Our results suggest monosomy X may skew trophoblast cell type composition and function, and that the combined haploinsufficiency of the pseudoautosomal region likely plays a key role in these changes.
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Qin XY, Shen HH, Zhou WJ, Mei J, Lu H, Tan XF, Zhu R, Zhou WH, Li DJ, Zhang T, Ye JF, Li MQ. Insight of Autophagy in Spontaneous Miscarriage. Int J Biol Sci 2022; 18:1150-1170. [PMID: 35173545 PMCID: PMC8771834 DOI: 10.7150/ijbs.68335] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/26/2021] [Indexed: 11/05/2022] Open
Abstract
In some cases of spontaneous miscarriage (SM), the exact etiology cannot be determined. Autophagy, which is responsible for cellular survival under stress conditions, has also been implicated in many diseases. Recently, it is also surmised to be correlated with SM. However, the detailed mechanism remains elusive. In fact, there are several essential steps during pregnancy establishment and maintenance: trophoblasts invasion, placentation, decidualization, enrichment and infiltration of decidua immune cells (e.g., natural killer, macrophage and T cells). Accordingly, upstream molecules and downstream effects of autophagy are discussed in these processes, respectively. Of note, autophagy regulates the crosstalk between these cells at the maternal-fetal interface as well. Aberrant autophagy is found in villi, decidual stromal cells, peripheral blood mononuclear cells in SM patients, although the findings are inconsistent among different studies. Furthermore, potential treatments targeting autophagy are included, during which rapamycin and vitamin D are hot-spots in recent literatures. To conclude, a moderately activated autophagy is deeply involved in pregnancy, suggesting that autophagy should be a regulator and promising target for treating SM.
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Affiliation(s)
- Xue-Yun Qin
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, People's Republic of China
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai 201203, People's Republic of China
| | - Hui-Hui Shen
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, People's Republic of China
| | - Wen-Jie Zhou
- Center of Reproductive Medicine of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People's Republic of China
| | - Jie Mei
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medicine School, Nanjing, 210000, People's Republic of China
| | - Han Lu
- Departments of Assisted Reproduction, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, People's Republic of China
| | - Xiao-Fang Tan
- Reproductive Medicine Centre, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, 226006, People's Republic of China
| | - Rui Zhu
- Center for Human Reproduction and Genetics, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, People's Republic of China
| | - Wen-Hui Zhou
- Medicine Centre for Human Reproduction, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People's Republic of China
| | - Da-Jin Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, People's Republic of China
| | - Tao Zhang
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Jiang-Feng Ye
- Division of Obstetrics and Gynecology, KK Women's and Children's Hospital, 229899, Singapore
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, People's Republic of China
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai 201203, People's Republic of China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200080, People's Republic of China
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Tantengco OAG, de Castro Silva M, Shahin H, Bento GFC, Cursino GC, Cayenne S, da Silva MG, Menon R. The role of nuclear factor erythroid 2-related factor 2 (NRF2) in normal and pathological pregnancy: A systematic review. Am J Reprod Immunol 2021; 86:e13496. [PMID: 34467607 DOI: 10.1111/aji.13496] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE A homeostatic balance between reactive oxygen species production and the antioxidant redox system is an important component of normal pregnancy. Nuclear Factor Erythroid 2-Related Factor 2 (Nrf2) preserves cellular homeostasis by enhancing the cell's innate antioxidant status to reduce oxidative stress and inflammatory damage to the cell during pregnancy. Active Nrf2, in the nucleus of the cell, transactivates various antioxidant genes. The objective of this systematic review was to synthesize evidence on the role of Nrf2 in various adverse pregnancy outcomes (APOs). METHODS We conducted a systematic review of the role of Nrf2 in pregnancy. Articles written in English, Portuguese, and Spanish were obtained from three different databases from inception until January 2021. The titles, abstracts and full text were reviewed independently by six reviewers. The quality of the included studies was assessed using a quality assessment tool developed to assess basic science and clinical studies. Nrf2 expression (gene and protein), functional contributions, and association with APOs were assessed. RESULTS A total of 747 citations were identified; 80 were retained for full review. Most studies on Nrf2 have been carried out using placental tissues and placenta-derived cells. Limited studies have been conducted using fetal membranes, uterus, and cervix. Nuclear translocation of Nrf2 results in transactivation of antioxidant enzymes, including glutathione peroxidase, hemeoxygenase-1, and superoxide dismutase in gestational cells during pregnancy. This antioxidant response maintains cellular homeostasis during pregnancy. This promotes trophoblast cell survival and prevents cell death and abnormal angiogenesis in the placenta. Excessive and insufficient Nrf2 response may promote oxidative and reductive stress, respectively. This Nrf2 dysregulation has been associated with APOs including gestational diabetes mellitus, intrauterine growth restriction, reproductive toxicity, preeclampsia, and preterm birth. CONCLUSION Several studies have localized and reported an association between Nrf2's differential expression in reproductive tissues and the pathogenesis of APOs. However, a comprehensive functional understanding of Nrf2 in reproductive tissues is still lacking. Nrf2's activation and functions are complex, and therefore, current in vitro and in vivo studies are limited in their experimental approaches. We have identified key areas for future Nrf2 research that is needed to fill knowledge gaps.
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Affiliation(s)
- Ourlad Alzeus G Tantengco
- Division of Basic & Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Mariana de Castro Silva
- Department of Pathology, Botucatu Medical School, Universidade Estadual Paulista, UNESP, Botucatu, São Paulo, Brazil
| | - Hend Shahin
- Division of Basic & Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Giovana Fernanda Cosi Bento
- Department of Pathology, Botucatu Medical School, Universidade Estadual Paulista, UNESP, Botucatu, São Paulo, Brazil
| | - Geovanna Cristofani Cursino
- Department of Pathology, Botucatu Medical School, Universidade Estadual Paulista, UNESP, Botucatu, São Paulo, Brazil
| | - Samir Cayenne
- The University of Texas at Austin, Austin, Texas, USA
| | - Marcia Guimarães da Silva
- Department of Pathology, Botucatu Medical School, Universidade Estadual Paulista, UNESP, Botucatu, São Paulo, Brazil
| | - Ramkumar Menon
- Division of Basic & Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, USA
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12
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Carvajal L, Gutiérrez J, Morselli E, Leiva A. Autophagy Process in Trophoblast Cells Invasion and Differentiation: Similitude and Differences With Cancer Cells. Front Oncol 2021; 11:637594. [PMID: 33937039 PMCID: PMC8082112 DOI: 10.3389/fonc.2021.637594] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Early human placental development begins with blastocyst implantation, then the trophoblast differentiates and originates the cells required for a proper fetal nutrition and placental implantation. Among them, extravillous trophoblast corresponds to a non-proliferating trophoblast highly invasive that allows the vascular remodeling which is essential for appropriate placental perfusion and to maintain the adequate fetal growth. This process involves different placental cell types as well as molecules that allow cell growth, cellular adhesion, tissular remodeling, and immune tolerance. Remarkably, some of the cellular processes required for proper placentation are common between placental and cancer cells to finally support tumor growth. Indeed, as in placentation trophoblasts invade and migrate, cancer cells invade and migrate to promote tumor metastasis. However, while these processes respond to a controlled program in trophoblasts, in cancer cells this regulation is lost. Interestingly, it has been shown that autophagy, a process responsible for the degradation of damaged proteins and organelles to maintain cellular homeostasis, is required for invasion of trophoblast cells and for vascular remodeling during placentation. In cancer cells, autophagy has a dual role, as it has been shown both as tumor promoter and inhibitor, depending on the stage and tumor considered. In this review, we summarized the similarities and differences between trophoblast cell invasion and cancer cell metastasis specifically evaluating the role of autophagy in both processes.
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Affiliation(s)
- Lorena Carvajal
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jaime Gutiérrez
- School of Medical Technology, Health Sciences Faculty, Universidad San Sebastian, Santiago, Chile
| | - Eugenia Morselli
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.,Autophagy Research Center, Santiago, Chile
| | - Andrea Leiva
- School of Medical Technology, Health Sciences Faculty, Universidad San Sebastian, Santiago, Chile
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13
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Bilici G, Ural C, Saçik U, Çavdar Z, Erbil G. The effects of hypothyroidism and hyperthyroidism on placental Hofbauer cells of pregnant rats. Biotech Histochem 2021; 97:126-135. [PMID: 33845696 DOI: 10.1080/10520295.2021.1912828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
We investigated the effects of maternal thyroid disorders on Hofbauer cells of both the placenta and the fetus in pregnant rats. We divided 21 rats into three groups: control group, induced hypothyroidism (hypo) group and induced hyperthyroidism (hyper) group. Hypothyroidism was induced using propylthiouracil and hyperthyroidism was induced using L-thyroxine. We measured maternal weight, maternal free thyroxine, fetal weight, fetal viability and placental morphology. At the end of the experiment, fetuses of the hypo and hyper groups were less developed than those of the control group. In the hypo and hyper groups, the thickness of the labyrinth zone was decreased, but thickness of the basal zone and decidua basalis was increased. The number of Hofbauer cells was increased in both the hypo and hyper groups. Vascular endothelial growth factor expression was increased in both the hypo and hyper groups compared to controls. Our findings indicate that maternal thyroid disorders exert a negative effect on fetal growth and placental development.
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Affiliation(s)
- Gökçen Bilici
- Department of Histology and Embryology, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey
| | - Cemre Ural
- Department of Molecular Medicine, Graduate School of Health Sciences, Dokuz Eylül University, Izmir, Turkey
| | - Uygar Saçik
- Department of Histology and Embryology, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey
| | - Zahide Çavdar
- Department of Molecular Medicine, Graduate School of Health Sciences, Dokuz Eylül University, Izmir, Turkey
| | - Güven Erbil
- Department of Histology and Embryology, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey
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14
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Gut-Lung Dysbiosis Accompanied by Diabetes Mellitus Leads to Pulmonary Fibrotic Change through the NF-κB Signaling Pathway. THE AMERICAN JOURNAL OF PATHOLOGY 2021; 191:838-856. [PMID: 33705752 DOI: 10.1016/j.ajpath.2021.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 01/25/2021] [Accepted: 02/10/2021] [Indexed: 02/07/2023]
Abstract
Growing evidence shows that the lungs are an unavoidable target organ of diabetic complications. However, the pathologic mechanisms of diabetic lung injury are still controversial. This study demonstrated the dysbiosis of the gut and lung microbiome, pulmonary alveolar wall thickening, and fibrotic change in streptozotocin-induced diabetic mice and antibiotic-induced gut dysbiosis mice compared with controls. In both animal models, the NF-κB signaling pathway was activated in the lungs. Enhanced pulmonary alveolar well thickening and fibrotic change appeared in the lungs of transgenic mice expressing a constitutively active NF-κB mutant compared with wild type. When lincomycin hydrochloride-induced gut dysbiosis was ameliorated by fecal microbiota transplant, enhanced inflammatory response in the intestine and pulmonary fibrotic change in the lungs were significantly decreased compared with lincomycin hydrochloride-treated mice. Furthermore, the application of fecal microbiota transplant and baicalin could also redress the microbial dysbiosis of the gut and lungs in streptozotocin-induced diabetic mice. Taken together, these data suggest that multiple as yet undefined factors related to microbial dysbiosis of gut and lungs cause pulmonary fibrogenesis associated with diabetes mellitus through an NF-κB signaling pathway.
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15
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Ning J, Yang H. O-GlcNAcylation in Hyperglycemic Pregnancies: Impact on Placental Function. Front Endocrinol (Lausanne) 2021; 12:659733. [PMID: 34140929 PMCID: PMC8204080 DOI: 10.3389/fendo.2021.659733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 05/17/2021] [Indexed: 01/16/2023] Open
Abstract
The dynamic cycling of N-acetylglucosamine, termed as O-GlcNAcylation, is a post-translational modification of proteins and is involved in the regulation of fundamental cellular processes. It is controlled by two essential enzymes, O-GlcNAc transferase and O-GlcNAcase. O-GlcNAcylation serves as a modulator in placental tissue; furthermore, increased levels of protein O-GlcNAcylation have been observed in women with hyperglycemia during pregnancy, which may affect the short-and long-term development of offspring. In this review, we focus on the impact of O-GlcNAcylation on placental functions in hyperglycemia-associated pregnancies. We discuss the following topics: effect of O-GlcNAcylation on placental development and its association with hyperglycemia; maternal-fetal nutrition transport, particularly glucose transport, via the mammalian target of rapamycin and AMP-activated protein kinase pathways; and the two-sided regulatory effect of O-GlcNAcylation on inflammation. As O-GlcNAcylation in the placental tissues of pregnant women with hyperglycemia influences near- and long-term development of offspring, research in this field has significant therapeutic relevance.
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Affiliation(s)
- Jie Ning
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing, China
- Peking University, Beijing, China
| | - Huixia Yang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing, China
- Peking University, Beijing, China
- *Correspondence: Huixia Yang,
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16
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Zhang XT, Wang G, Ye LF, Pu Y, Li RT, Liang J, Wang L, Lee KKH, Yang X. Baicalin reversal of DNA hypermethylation-associated Klotho suppression ameliorates renal injury in type 1 diabetic mouse model. Cell Cycle 2020; 19:3329-3347. [PMID: 33190590 PMCID: PMC7751632 DOI: 10.1080/15384101.2020.1843815] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 09/22/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023] Open
Abstract
Baicalin is a flavone glycoside that possesses numerous pharmacological properties. but its protective mode of action in kidney injury induced by diabetes mellitus remains incompletely understood. Using a streptozotocin (STZ)-induced diabetic mouse model, we found that baicalin could ameliorate diabetes-induced the pathological changes of the kidney function and morphology through suppressing inflammation and oxidative stress. Furthermore, baicalin treatment could alleviate interstitial fibrosis in the diabetic kidney via inhibiting epithelial-to-mesenchymal transition (EMT), which was accompanied by a sharp upregulation of Klotho, the endogenous inhibitor of renal fibrosis. We further verified that baicalin-rescued expression of Klotho was associated with Klotho promoter hypomethylation due to aberrant methyltransferase 3a expressions. Klotho knockdown via RNA interferences largely abrogated the anti-renal fibrotic effects of Baicalin in HK2 cells. These findings suggested that baicalin could alleviate renal injury-induced by diabates through partly modulating Klotho promoter methylation, which provides new insights into the treatment of diabetic nephropathy.
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Affiliation(s)
- Xiao-Tan Zhang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
- Department of Clinical Pathology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Guang Wang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Liu-Fang Ye
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Yu Pu
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Run-Tong Li
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Jianxin Liang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
| | - Lijun Wang
- Department of Public Health, Medical College, Jinan University, Guangzhou, China
| | - Kenneth Ka Ho Lee
- Key Laboratory for Regenerative Medicine of the Ministry of Education, School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, Hong Kong
| | - Xuesong Yang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
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17
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Li YX, Long DL, Liu J, Qiu D, Wang J, Cheng X, Yang X, Li RM, Wang G. Gestational diabetes mellitus in women increased the risk of neonatal infection via inflammation and autophagy in the placenta. Medicine (Baltimore) 2020; 99:e22152. [PMID: 33019392 PMCID: PMC7535644 DOI: 10.1097/md.0000000000022152] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) produces numerous problems for maternal and fetal outcomes. However, the precise molecular mechanisms of GDM are not clear. METHODS In our study, we randomly assigned 22 pregnant women with fasting glucose concentrations, 1 hour oral glucose tolerance test (1H-OGTT) and 2 hour oral glucose tolerance test (2H-OGTT), different than 28 normal pregnant women from a sample of 107 pregnant women at the First Affiliated Hospital of Jinan University in China. Lipopolysaccharide (LPS), interleukin 1 alpha (IL-1α), interleukin-6 (IL-6), interleukin-8 (IL-8) and tumor necrosis factor alpha (TNF-α) were measured from blood plasma of pregnant women and umbilical arteries using ultraviolet spectrophotometry. Hematoxylin & Eosin (H&E), Periodic acid-Schiff (PAS) or Masson staining were performed to examine whether diabetes mellitus altered the morphology of placenta. Quantitative PCR (Q-PCR), western blotting and immunofluorescent staining were performed to examine whether diabetes mellitus and autophagy altered the gene expressions of the placental tissue. RESULTS We found that women with GDM exhibited increased placental weight and risk of neonatal infection. The concentrations of IL-6 protein and IL-8 protein in GDM were increased in both maternal and umbilical arterial blood. H&E, Masson and PAS staining results showed an increased number of placental villi and glycogen deposition in patients with GDM, but no placental sclerosis was found. Q-PCR results suggested that the expression levels of HIF-1α and the toll like receptor 4 (TLR4)/ myeloid differential protein-88 (MyD88)/ nuclear factor kappa-B (NF-κB) pathway were increased in the GDM placenta. Through Western Blotting, we found that the expression of NF-kappa-B inhibitor alpha (IKBα) and Nuclear factor-κB p65 (NF-κB p65) in GDM placenta was significantly enhanced. We also showed that the key autophagy-related genes, autophagy-related 7 (ATG7) and microtubule-associated protein 1A/1B-light chain 3 (LC3), were increased in GDM compared with normal pregnant women. CONCLUSIONS Our results suggest that women with GDM exhibit an increased risk of neonatal infection via inflammation and autophagy in the placenta.
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Affiliation(s)
- Yi-xiao Li
- The First Affiliate Hospital of Jinan University
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College
| | - Deng-lu Long
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College
| | - Jia Liu
- The First Affiliate Hospital of Jinan University
| | - Di Qiu
- The First Affiliate Hospital of Jinan University
| | - Jingyun Wang
- The First Affiliate Hospital of Jinan University
| | - Xin Cheng
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
| | - Xuesong Yang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
| | - Rui-man Li
- The First Affiliate Hospital of Jinan University
| | - Guang Wang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
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18
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Taurine attenuates liver autophagy and injury of offspring in gestational diabetic mellitus rats. Life Sci 2020; 257:117889. [PMID: 32502541 DOI: 10.1016/j.lfs.2020.117889] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 12/19/2022]
Abstract
PURPOSE Gestational diabetes mellitus (GDM) has many adverse effects on offspring, such as abnormal glycolipid metabolism, obesity, insulin resistance, mental retardation, schizophrenia and so on. METHODS We established a GDM rat model by injecting 1% streptozotocin associated with a high-fat diet one week before pregnancy, and offspring rats were sacrificed at 8 weeks of age to obtain liver tissue for study. We used hematoxylin-eosin (HE) staining to observe liver morphological changes, Tunel staining for hepatocyte apoptosis, transmission electron microscope for liver ultrastructure, and western blot for protein expression in liver tissue. RESULTS Compared with normal offspring rats, hepatocytes of GDM offspring rats showed obvious edema, liver organ index increased, and hepatocyte apoptosis and autophagosome in the liver were significantly increased; Bax, cleaved-caspase3/caspase3, LCII, Beclin 1, P-IKBα/IKBα and P-p65/p6 protein expression in the liver were significantly increased; Bcl2, p62 and PPARγ protein expression in the liver were significantly decreased. Tau prevented the GDM-related effects in the offspring: Tau decreased hepatocyte edema (or even disappears), liver organ index, hepatocyte apoptosis and the number of autophagosomes in the liver. In addition, Tau also decreased Bax, cleaved-caspase3/caspase3, LCII, Beclin 1, P-IKBα/IKBα and P-p65/p6 protein expression, and increased Bcl2, p62 and PPARγ protein expression in the liver of GDM offspring rats. CONCLUSION Taurine should be considered as a potential gestational nutritional supplement to prevent liver damage in GDM offspring.
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19
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Liu N, Dai Z, Zhang Y, Chen J, Yang Y, Wu G, Tso P, Wu Z. Maternal L-proline supplementation enhances fetal survival, placental development, and nutrient transport in mice†. Biol Reprod 2020; 100:1073-1081. [PMID: 30418498 DOI: 10.1093/biolre/ioy240] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/16/2018] [Accepted: 11/08/2018] [Indexed: 12/15/2022] Open
Abstract
L-Proline (proline) in amniotic fluid was markedly increased during pregnancy in both pigs and sheep. However, in vivo data to support a beneficial effect of proline on fetal survival are not available. In this study, pregnant C57BL/6J mice were fed a purified diet supplemented with or without 0.50% proline from embryonic day 0.5 (E0.5) to E12.5 or term. Results indicated that dietary supplementation with proline to gestating mice enhanced fetal survival, reproductive performance, the concentrations of proline, arginine, aspartic acid, and tryptophan in plasma and amniotic fluid, while decreasing the concentrations of ammonia and urea in plasma and amniotic fluid. Placental mRNA levels for amino acid transporters, including Slc36a4, Slc38a2, Slc38a4, Slc6a14, and Na+/K+ ATPase subunit-1α (Atp1a1), fatty acid transporter Slc27a4, and glucose transporters Slc2a1 and Slc2a3, were augmented in proline-supplemented mice, compared with the control group. Histological analysis showed that proline supplementation enhanced labyrinth zone in the placenta of mice at E12.5, mRNA levels for Vegf, Vegfr, Nos2, and Nos3, compared with the controls. Western blot analysis showed that proline supplementation increased protein abundances of phosphorylated (p)-mTORC1, p-ribosomal protein S6 kinase (p70S6K), and p-eukaryotic translation initiation factor 4E-binding protein 1 (4E-BP1), as well as the protein level of GCN2 (a negative regulator of mTORC1 signaling). Collectively, our results indicate a novel functional role of proline in improving placental development and fetal survival by enhancing placental nutrient transport, angiogenesis, and protein synthesis.
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Affiliation(s)
- Ning Liu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China
| | - Zhaolai Dai
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China
| | - Yunchang Zhang
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China
| | - Jingqing Chen
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China
| | - Ying Yang
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China
| | - Guoyao Wu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China.,Department of Animal Science, Texas A&M University, College Station, Texas, USA
| | - Patrick Tso
- Department of Pathology and Laboratory Medicine, Metabolic Diseases Institute, University of Cincinnati, Cincinnati, Ohio, USA
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, P. R. China
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20
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Sutton EF, Gemmel M, Brands J, Gallaher MJ, Powers RW. Paternal deficiency of complement component C1q leads to a preeclampsia-like pregnancy in wild-type female mice and vascular adaptations postpartum. Am J Physiol Regul Integr Comp Physiol 2020; 318:R1047-R1057. [PMID: 32374620 DOI: 10.1152/ajpregu.00353.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Preeclampsia is a spontaneously occurring, pregnancy-specific syndrome that is clinically diagnosed by new onset hypertension and proteinuria. Epidemiological evidence describes an association between a history of preeclampsia and increased risk for cardiovascular disease in later life; however, the mechanism(s) driving this relationship are unclear. Our study aims to leverage a novel preeclampsia-like mouse model, the C1q-/- model, to help elucidate the acute and persistent vascular changes during and following a preeclampsia-like pregnancy. Female C57BL/6J mice were mated to C1q-/- male mice to model a preeclampsia-like pregnancy ("PE-like"), and the maternal cardiovascular phenotype (blood pressure, renal function, systemic glycocalyx, and ex vivo vascular function) was assessed in late pregnancy and postpartum at 6 and 10 mo of age. Uncomplicated, normotensive pregnancies (female C57BL/6J bred to male C57BL/6J mice) served as age-matched controls. In pregnancy, PE-like dams exhibited increased systolic and diastolic pressure during mid- and late gestation, renal dysfunction, fetal growth restriction, and reduced placental efficiency. Ex vivo wire myography studies of mesenteric arteries revealed severe pregnancy-specific endothelial-dependent and -independent vascular dysfunction. At 3 and 7 mo postpartum (6 and 10 mo old, respectively), hypertension resolved in PE-like dams, whereas mild vascular dysfunction persisted at 3 mo postpartum. In conclusion, the female C57BL/6J-by-male C57BL/6J C1q-/- model recapitulates many aspects of the human preeclampsia syndrome in a low-risk, wild-type female mouse. The pregnancy-specific phenotype results in systemic maternal endothelial-dependent and -independent vascular dysfunction that persists postpartum.
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Affiliation(s)
- Elizabeth F Sutton
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Mary Gemmel
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Judith Brands
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Robert W Powers
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
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21
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Davidson AJF, Park AL, Berger H, Aoyama K, Harel Z, Cook JL, Ray JG. Risk of severe maternal morbidity or death in relation to elevated hemoglobin A1c preconception, and in early pregnancy: A population-based cohort study. PLoS Med 2020; 17:e1003104. [PMID: 32427997 PMCID: PMC7236974 DOI: 10.1371/journal.pmed.1003104] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 04/13/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The relation between prepregnancy average glucose concentration and a woman's risk of severe maternal morbidity (SMM) is unknown. The current study evaluated whether an elevated preconception hemoglobin A1c (A1c) is associated with SMM or maternal death among women with and without known prepregnancy diabetes mellitus (DM). METHODS AND FINDINGS A population-based cohort study was completed in Ontario, Canada, where there is universal healthcare. The main cohort included 31,225 women aged 16-50 years with a hospital live birth or stillbirth from 2007 to 2015, and who had an A1c measured within 90 days before conception, including 28,075 women (90%) without known prepregnancy DM. The main outcome was SMM or maternal mortality from 23 weeks' gestation up to 42 days postpartum. Relative risks (RRs) were generated using modified Poisson regression, adjusting for the main covariates of maternal age, multifetal pregnancy, world region of origin, and tobacco/drug dependence. The mean maternal age was 31.1 years. Overall, SMM or death arose among 682 births (2.2%). The RR of SMM or death was 1.16 (95% CI 1.14-1.19; p < 0.001) per 0.5% increase in A1c and 1.16 (95% CI 1.13-1.18; p < 0.001) after adjusting for the main covariates. The adjusted relative risk (aRR) was increased among those with (1.11, 95% CI 1.07-1.14; p < 0.001) and without (1.15, 95% CI 1.02-1.29; p < 0.001) known prepregnancy diabetes, and upon further adjusting for body mass index (BMI) (1.15, 95% CI 1.11-1.20; p < 0.001), or chronic hypertension and prepregnancy serum creatinine (1.11, 95% CI 1.04-1.18; p = 0.002). The aRR of SMM or death was 1.31 (95% CI 1.06-1.62; p = 0.01) in those with a preconception A1c of 5.8%-6.4%, and 2.84 (95% CI 2.31-3.49; p < 0.001) at an A1c > 6.4%, each relative to an A1c < 5.8%. Among those without previously recognized prepregnancy diabetes and whose A1c was >6.4%, the aRR of SMM or death was 3.25 (95% CI 1.76-6.00; p < 0.001). Study limitations include that selection bias may have incorporated less healthy women tested for A1c, and BMI was unknown for many women. CONCLUSIONS Our findings indicate that women with an elevated A1c preconception may be at higher risk of SMM or death in pregnancy or postpartum, including those without known prepregnancy DM.
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Affiliation(s)
| | - Alison L. Park
- University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - Howard Berger
- University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, St. Michael’s Hospital, Toronto, Ontario, Canada
- Department of Obstetrics and Gynaecology, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Kazuyoshi Aoyama
- University of Toronto, Toronto, Ontario, Canada
- Department of Anesthesia and Pain Medicine, the Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ziv Harel
- University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Department of Medicine, St. Michael’s Hospital, Toronto, Ontario, Canada
| | - Jocelynn L. Cook
- Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
- The Society of Obstetricians and Gynaecologists of Canada, Ottawa, Ontario, Canada
| | - Joel G. Ray
- University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Department of Medicine, St. Michael’s Hospital, Toronto, Ontario, Canada
- Department of Obstetrics and Gynaecology, St. Michael’s Hospital, Toronto, Ontario, Canada
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22
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Davidson AJ, Park AL, Ray JG. Navigating severe maternal morbidity using big data: Green, yellow, and red flags for researchers. Obstet Med 2019; 12:105-106. [PMID: 31523265 DOI: 10.1177/1753495x19872880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/08/2019] [Indexed: 11/17/2022] Open
Affiliation(s)
| | | | - Joel G Ray
- Departments of Medicine, and Obstetrics and Gynecology, St. Michael's Hospital, Toronto, ON, University of Toronto, Toronto, ON, Canada
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23
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Manoharan B, Bobby Z, Dorairajan G, Jacob SE, Gladwin V, Vinayagam V, Packirisamy RM. Increased placental expressions of nuclear factor erythroid 2-related factor 2 and antioxidant enzymes in gestational diabetes: Protective mechanisms against the placental oxidative stress? Eur J Obstet Gynecol Reprod Biol 2019; 238:78-85. [PMID: 31121342 DOI: 10.1016/j.ejogrb.2019.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/30/2019] [Accepted: 05/14/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Gestational diabetes mellitus is associated with increased oxidative stress. Oxidative stress may contribute to the risk for pregnancy pathologies associated with gestational diabetes mellitus. In this study we investigated the expression of placental nuclear factor erythroid 2-related factor 2 (Nrf2) and antioxidant enzymes of gestational diabetes mellitus and healthy pregnant women and correlated them with the maternal and cord plasma as well as placental tissue oxidative stress parameters. STUDY DESIGN A cross sectional study was carried out in a South Indian Tamil population. Forty healthy pregnant women and forty gestational diabetes mellitus patients in the gestational age of 32 ± 4weeks were recruited. Maternal plasma, cord plasma and placental oxidative stress parameters were measured. Placental expression of Nrf2, phospho Nrf2, catalase and superoxide dismutase 1(SOD1) were analyzed by western blotting and immunohistochemistry. RESULTS Placental expression of Nrf2, catalase and SOD1 were found to be significantly higher in gestational diabetes mellitus. The maternal plasma, cord plasma and placental tissue oxidative stress parameters, total antioxidant status (TAS) levels were significantly lower; whereas MDA (malondialdehyde) and MDA/TAS levels were significantly higher in gestational diabetes mellitus. Placental Nrf2 expression correlated positively with the placental catalase expression and negatively with placental TAS levels in both groups. CONCLUSION Maternal, fetal and placental oxidative stress was observed in gestational diabetes mellitus. The gestational diabetic placenta had an increased Nrf2 protein expression. The activated placental Nrf2/ antioxidant response element (ARE) pathway might have led to an increased expression of antioxidant enzymes SOD1 and catalase. This may be viewed as a protective mechanism in placenta from the further onslaught of oxidative stress.
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Affiliation(s)
- Balachandiran Manoharan
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Zachariah Bobby
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India.
| | - Gowri Dorairajan
- Department of Obstetrics & Gynaecology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Sajini Elizabeth Jacob
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Victorraj Gladwin
- Department of Anatomy, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Vickneshwaran Vinayagam
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Rajaa Muthu Packirisamy
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
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Pharmacological modulation of autophagy as a novel potential target in the successful implementation of in vitro fertilization. Life Sci 2019; 229:93-97. [PMID: 31095948 DOI: 10.1016/j.lfs.2019.05.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/01/2019] [Accepted: 05/11/2019] [Indexed: 11/22/2022]
Abstract
Autophagy is an important intracellular process to maintain homeostasis and studies have shown the key role of autophagy in modulating the functions of reproductive system. Alongside with it, the activation of autophagy has also been found to regulate a number of important processes involved in in vitro fertilization including degeneration of granulosa cells and oocyte defects in obese and aging women; apoptosis of oocytes during vitrification-warming; quality and viability of embryo; developmental competence and pre-implantation development of in vitro produced blastocysts; placental vascularization and fetal growth. The different mechanisms that may contribute in autophagy-mediated increase in developmental competence and pre-implantation development include decrease in endoplasmic reticulum (ER) stress, activation of poly(ADP-ribosyl)ation (PARP) and reduction in free radical production. The present review discusses the role of autophagy activation in increasing the efficiency of in vitro fertilization by modulating different aspects related to fertilization.
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Huang X, Han X, Huang Z, Yu M, Zhang Y, Fan Y, Xu B, Zhou K, Song L, Wang X, Lu C, Xia Y. Maternal pentachlorophenol exposure induces developmental toxicity mediated by autophagy on pregnancy mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:829-836. [PMID: 30597782 DOI: 10.1016/j.ecoenv.2018.11.073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 11/16/2018] [Accepted: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Pentachlorophenol (PCP) is often used as chlorinated hydrocarbon herbicides and insecticides, which has been suggested that toxicity of carcinogenic effect, teratogenic effect and reproductive system. However, there was still precious known about the underlying molecular mechanism of PCP on mammalian early development. To explore the developmental toxicity of PCP and its potential mechanism, pregnancy ICR mice except controls were exposed to PCP (0.02, 0.2 or 2 mg/kg) during gestation day (GD) 0.5 to GD8.5 in this study. We found that the fetal loss rate was increased and placental chorionic villi structure was disorder in hematoxylin-eosin staining (HE) on GD16.5. Meanwhile, autophagosomes were observed in chorionic villi through Transmission Electron Microscope (TEM). Moreover, the mRNA and/or protein expression of P62, LC3-ІІ/LC3-І and Beclin1 were increased in placenta, indicating the occurrence of autophagy. Then, to further explore the autophagy mechanism, microRNA (miR)-30a-5p, an expression inhibitor of Beclin1, was predicted through bioinformatics predictions and RT-PCR, and it was reduced in PCP-treated mice. Transfection and luciferase reporter gene test were used to verify the interaction between Beclin1 and miR-30a-5p. These results firstly indicate that, PCP exposure could downregulate the expression of miR-30a-5p, and then induced autophagy through upregulation of Beclin1 to result in fetal loss. Our study laid a foundation for understanding the PCP developmental toxicity through autophagy.
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Affiliation(s)
- Xiaomin Huang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xiumei Han
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhenyao Huang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Mingming Yu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yan Zhang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yun Fan
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Bo Xu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Kun Zhou
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ling Song
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xinru Wang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chuncheng Lu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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The role of autophagy in morphogenesis and stem cell maintenance. Histochem Cell Biol 2018; 150:721-732. [PMID: 30382373 DOI: 10.1007/s00418-018-1751-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2018] [Indexed: 12/21/2022]
Abstract
During embryonic development, cells need to undergo a number of morphological changes that are decisive for the shaping of the embryo's body, initiating organogenesis and differentiation into functional tissues. These remodeling processes are accompanied by profound changes in the cell membrane, the cytoskeleton, organelles, and extracellular matrix composition. While considerably detailed insight into the role of autophagy in stem cells biology has been gained in the recent years, information regarding the participation of autophagy in morphogenetic processes is only sparse. This review, therefore, focuses on the role of autophagy in cell morphogenesis through its regulatory activity in TGFβ signaling, expression of adhesion molecules and cell cycle modification. It also discusses the role of autophagy in stem cell maintenance which is very fundamental for cell renewal and replacement during development, pathogenesis of certain diseases and development of therapies. We are thus addressing here perspectives for further potentially rewarding research topics.
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Nishitani K, Hayakawa K, Tanaka S. Extracellular glucose levels in cultures of undifferentiated mouse trophoblast stem cells affect gene expression during subsequent differentiation with replicable cell line-dependent variation. J Reprod Dev 2018; 65:19-27. [PMID: 30318498 PMCID: PMC6379769 DOI: 10.1262/jrd.2018-083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Mouse trophoblast stem cells (TSCs) have been established and maintained using hyperglycemic conditions (11 mM glucose) for no apparent good reason. Because glucose metabolites are used as
resources for cellular energy production, biosynthesis, and epigenetic modifications, differences in extracellular glucose levels may widely affect cellular function. Since the hyperglycemic
culture conditions used for TSC culture have not been fully validated, the effect of extracellular glucose levels on the properties of TSCs remains unclear. To address this issue, we
investigated the gene expression of stemness-related transcription factors in TSCs cultured in the undifferentiated state under various glucose concentrations. We also examined the
expression of trophoblast subtype markers during differentiation, after returning the glucose concentration to the conventional culture concentration (11 mM). As a result, it appeared that
the extracellular glucose conditions in the stem state not only affected the gene expression of stemness-related transcription factors before differentiation but also affected the expression
of marker genes after differentiation, with some line-to-line variation. In the TS4 cell line, which showed the largest glucose concentration-dependent fluctuations in gene expression among
all the lines examined, low glucose (1 mM glucose, LG) augmented H3K27me3 levels. An Ezh2 inhibitor prevented these LG-induced changes in gene expression, suggesting the possible involvement
of H3K27me3 in the changes in gene expression seen in LG. These results collectively indicate that the response of the TSCs to the change in the extracellular glucose concentration is cell
line-dependent and a part of which may be epigenetically memorized.
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Affiliation(s)
- Kenta Nishitani
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences/Veterinary Medical Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Koji Hayakawa
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences/Veterinary Medical Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Satoshi Tanaka
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences/Veterinary Medical Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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28
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Gao LR, Wang G, Zhang J, Li S, Chuai M, Bao Y, Hocher B, Yang X. High salt-induced excess reactive oxygen species production resulted in heart tube malformation during gastrulation. J Cell Physiol 2018; 233:7120-7133. [PMID: 29574800 DOI: 10.1002/jcp.26528] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 01/31/2018] [Indexed: 12/30/2022]
Abstract
An association has been proved between high salt consumption and cardiovascular mortality. In vertebrates, the heart is the first functional organ to be formed. However, it is not clear whether high-salt exposure has an adverse impact on cardiogenesis. Here we report high-salt exposure inhibited basement membrane breakdown by affecting RhoA, thus disturbing the expression of Slug/E-cadherin/N-cadherin/Laminin and interfering with mesoderm formation during the epithelial-mesenchymal transition(EMT). Furthermore, the DiI+ cell migration trajectory in vivo and scratch wound assays in vitro indicated that high-salt exposure restricted cell migration of cardiac progenitors, which was caused by the weaker cytoskeleton structure and unaltered corresponding adhesion junctions at HH7. Besides, down-regulation of GATA4/5/6, Nkx2.5, TBX5, and Mef2c and up-regulation of Wnt3a/β-catenin caused aberrant cardiomyocyte differentiation at HH7 and HH10. High-salt exposure also inhibited cell proliferation and promoted apoptosis. Most importantly, our study revealed that excessive reactive oxygen species(ROS)generated by high salt disturbed the expression of cardiac-related genes, detrimentally affecting the above process including EMT, cell migration, differentiation, cell proliferation and apoptosis, which is the major cause of malformation of heart tubes.
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Affiliation(s)
- Lin-Rui Gao
- Division of Histology and Embryology, Joint Laboratory for Embryonic Development and Prenatal Medicine, Medical College, Jinan University, Guangzhou, China.,Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
| | - Guang Wang
- Division of Histology and Embryology, Joint Laboratory for Embryonic Development and Prenatal Medicine, Medical College, Jinan University, Guangzhou, China.,Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
| | - Jing Zhang
- Division of Histology and Embryology, Joint Laboratory for Embryonic Development and Prenatal Medicine, Medical College, Jinan University, Guangzhou, China
| | - Shuai Li
- Division of Histology and Embryology, Joint Laboratory for Embryonic Development and Prenatal Medicine, Medical College, Jinan University, Guangzhou, China
| | - Manli Chuai
- Division of Cell and Developmental Biology, University of Dundee, Dundee, UK
| | - Yongping Bao
- Norwich Medical School, University of East Anglia, Norwich, Norfolk, UK
| | - Berthold Hocher
- Division of Histology and Embryology, Joint Laboratory for Embryonic Development and Prenatal Medicine, Medical College, Jinan University, Guangzhou, China.,Institute of Nutritional Science, University of Potsdam, Potsdam-Nuthetal, Germany
| | - Xuesong Yang
- Division of Histology and Embryology, Joint Laboratory for Embryonic Development and Prenatal Medicine, Medical College, Jinan University, Guangzhou, China.,Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
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Zhao Y, Dong D, Reece EA, Wang AR, Yang P. Oxidative stress-induced miR-27a targets the redox gene nuclear factor erythroid 2-related factor 2 in diabetic embryopathy. Am J Obstet Gynecol 2018; 218:136.e1-136.e10. [PMID: 29100869 DOI: 10.1016/j.ajog.2017.10.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 10/23/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Maternal diabetes induces neural tube defects, and oxidative stress is a causal factor for maternal diabetes-induced neural tube defects. The redox gene nuclear factor erythroid 2-related factor 2 is the master regulator of the cellular antioxidant system. OBJECTIVE In this study, we aimed to determine whether maternal diabetes inhibits nuclear factor erythroid 2-related factor 2 expression and nuclear factor erythroid 2-related factor 2-controlled antioxidant genes through the redox-sensitive miR-27a. STUDY DESIGN We used a well-established type 1 diabetic embryopathy mouse model induced by streptozotocin for our in vivo studies. Embryos at embryonic day 8.5 were harvested for analysis of nuclear factor erythroid 2-related factor 2, nuclear factor erythroid 2-related factor 2-controlled antioxidant genes, and miR-27a expression. To determine if mitigating oxidative stress inhibits the increase of miR-27a and the decrease of nuclear factor erythroid 2-related factor 2 expression, we induced diabetic embryopathy in superoxide dismutase 2 (mitochondrial-associated antioxidant gene)-overexpressing mice. This model exhibits reduced mitochondria reactive oxygen species even in the presence of hyperglycemia. To investigate the causal relationship between miR-27a and nuclear factor erythroid 2-related factor 2 in vitro, we examined C17.2 neural stem cells under normal and high-glucose conditions. RESULTS We observed that the messenger RNA and protein levels of nuclear factor erythroid 2-related factor 2 were significantly decreased in embryos on embryonic day 8.5 from diabetic dams compared to those from nondiabetic dams. High-glucose also significantly decreased nuclear factor erythroid 2-related factor 2 expression in a dose- and time-dependent manner in cultured neural stem cells. Our data revealed that miR-27a was up-regulated in embryos on embryonic day 8.5 exposed to diabetes, and that high glucose increased miR-27a levels in a dose- and time-dependent manner in cultured neural stem cells. In addition, we found that a miR-27a inhibitor abrogated the inhibitory effect of high glucose on nuclear factor erythroid 2-related factor 2 expression, and a miR-27a mimic suppressed nuclear factor erythroid 2-related factor 2 expression in cultured neural stem cells. Furthermore, our data indicated that the nuclear factor erythroid 2-related factor 2-controlled antioxidant enzymes glutamate-cysteine ligase catalytic subunit, glutamate-cysteine ligase modifier subunit, and glutathione S-transferase A1 were down-regulated by maternal diabetes in embryos on embryonic day 8.5 and high glucose in cultured neural stem cells. Inhibiting miR-27a restored expression of glutamate-cysteine ligase catalytic subunit, glutamate-cysteine ligase modifier subunit, and glutathione S-transferase A1. Overexpressing superoxide dismutase 2 reversed the maternal diabetes-induced increase of miR-27a and suppression of nuclear factor erythroid 2-related factor 2 and nuclear factor erythroid 2-related factor 2-controlled antioxidant enzymes. CONCLUSION Our study demonstrates that maternal diabetes-induced oxidative stress increases miR-27a, which, in turn, suppresses nuclear factor erythroid 2-related factor 2 and its responsive antioxidant enzymes, resulting in diabetic embryopathy.
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Affiliation(s)
- Yang Zhao
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD
| | - Daoyin Dong
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD
| | - E Albert Reece
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD; Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD
| | - Ashley R Wang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD
| | - Peixin Yang
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Chashan University-town, Wenzhou, Zhejiang, China; Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD; Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD.
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30
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Avagliano L, Massa V, Terraneo L, Samaja M, Doi P, Bulfamante GP, Marconi AM. Gestational diabetes affects fetal autophagy. Placenta 2017. [DOI: 10.1016/j.placenta.2017.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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