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Yang F, Mao W, Ge Y, Zhao X, Song J, Lu J, Liang Y. Hyperlipidemia is negatively associated with pregnancy outcomes in patients following frozen-thawed embryo transfer: A retrospective study. Health Sci Rep 2024; 7:e1947. [PMID: 38440261 PMCID: PMC10910604 DOI: 10.1002/hsr2.1947] [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: 08/19/2023] [Revised: 12/28/2023] [Accepted: 02/17/2024] [Indexed: 03/06/2024] Open
Abstract
Background and Aims It is demonstrated that lipid metabolism disorders are associated with the reproductive performances of assisted reproductive technology. However, it is little known whether hyperlipidemia is associated with the endometrial receptivity and pregnancy outcomes of patients undergoing frozen-thawed embryo transfer (FET). Methods This was a retrospective analysis involving 554 infertile women undergoing FET. The patients were divided into the hyperlipidemia group (n = 224) and control group (n = 320) based on the levels of serum lipids. The clinical and laboratory indexes between the two groups were compared. Meanwhile, the stratified analysis based on body mass index (BMI) and endometrial preparation protocols was performed. The independent samples t-test, Mann-Whitney U test, χ2 test and multiple logistic regression analysis were used to compare and analyze the data. Results The patients with hyperlipidemia had significantly higher serum lipids levels and BMI and lower clinical pregnancy and implantation rates than those with normal blood lipids (p < 0.05). The impact of hyperlipidemia on pregnancy outcomes was independent of BMI. The multiple logistic regression analysis showed that higher cholesterol was associated with lower pregnancy rate and implantation rate (p < 0.05). Regardless of blood lipid levels, the patients undergoing the hormone replacement therapy (HRT) protocol had higher estradiol levels and lower progesterone levels compared with the stimulated cycles (STC) (p < 0.05). Moreover, the clinical pregnancy rate and implantation rate of the HRT protocol were higher than those of the STC, although there was no significant difference between the two. Conclusion Hyperlipidemia especially higher cholesterol has a negative effect on the pregnancy outcomes of the patients undergoing FET. Actively implementing lipid-lowering treatment and the HRT protocol seem more friendly for these patients.
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Affiliation(s)
- Fang Yang
- Center for Reproductive Medicine, Zhongda HospitalSoutheast UniversityNanjingJiangsuChina
| | - Wei Mao
- Wuxi Maternal and Child Health Hospital, Wuxi School of MedicineJiangnan UniversityWuxiJiangsuChina
| | - Yan‐Mei Ge
- Center for Reproductive Medicine, Zhongda HospitalSoutheast UniversityNanjingJiangsuChina
| | - Xia Zhao
- Center for Reproductive Medicine, Zhongda HospitalSoutheast UniversityNanjingJiangsuChina
| | - Jie Song
- Center for Reproductive Medicine, Zhongda HospitalSoutheast UniversityNanjingJiangsuChina
| | - Jin‐Chun Lu
- Center for Reproductive Medicine, Zhongda HospitalSoutheast UniversityNanjingJiangsuChina
| | - Yuan‐Jiao Liang
- Center for Reproductive Medicine, Zhongda HospitalSoutheast UniversityNanjingJiangsuChina
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2
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Li K, Huang Z, Liu C, Xu Y, Chen W, Shi L, Li C, Zhou F, Zhou F. Transcriptomic analysis of human pulmonary microvascular endothelial cells treated with LPS. Cell Signal 2023; 111:110870. [PMID: 37633475 DOI: 10.1016/j.cellsig.2023.110870] [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: 05/05/2023] [Revised: 08/08/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
Acute respiratory distress syndrome (ARDS) has a rapid onset and progression, which lead to the severity and complexity of the primary disease and significantly increase the fatality rate of patients. Transcriptomics provides some ideas for clarifying the mechanism of ARDS, exploring prevention and treatment targets, and searching for related specific markers. In this study, RNA-Seq technology was used to observe the gene expression of human pulmonary microvascular endothelial cells (PMVECs) induced by LPS, and to excavate the key genes and signaling pathways in ARDS process. A total of 2300 up-regulated genes were detected, and a corresponding 1696 down-regulated genes were screened. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and protein-protein interaction (PPI) were also used for functional annotation of key genes. TFDP1 was identified as a cell cycle-dependent differentially expressed gene, and its reduced expression was verified in LPS-treated PMVECs and lung tissues of CLP-induced mice. In addition, the inhibition of TFDP1 on inflammation and apoptosis, and the promotion of proliferation were confirmed. The decreased expression of E2F1, Rb, CDK1 and the activation of MAPK signaling pathway were substantiated in the in vivo and in vitro models of ARDS. Moreover, SREBF1 has been demonstrated to be involved in cell cycle arrest in PMVECs by inhibiting CDK1. Our study shows that transcriptomics combined with basic research can broaden the investigation of ARDS mechanisms and may provide a basis for future mechanistic innovations.
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Affiliation(s)
- Kaili Li
- Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China.
| | - Zuotian Huang
- Department of Hepatobiliary Pancreatic Tumor Center, Chongqing University Cancer Hospital, 400030 Chongqing Municipality, China
| | - Chang Liu
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China.
| | - Yuanyuan Xu
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China
| | - Wei Chen
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China
| | - Lu Shi
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China
| | - Can Li
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China
| | - Fawei Zhou
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China
| | - Fachun Zhou
- Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China; Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China.
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Long J, Li W, Chen M, Ding Y, Chen X, Tong C, Li N, Liu X, He J, Peng C, Geng Y, Liu T, Mu X, Li F, Wang Y, Gao R. Uterine deficiency of Dnmt3b impairs decidualization and causes consequent embryo implantation defects. Cell Biol Toxicol 2023; 39:1077-1098. [PMID: 34773530 DOI: 10.1007/s10565-021-09664-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 09/24/2021] [Indexed: 12/19/2022]
Abstract
Uterine deficiency of Dnmt3b impairs decidualization and consequent embryo implantation defects. Recent advances in molecular technologies have allowed the unprecedented mapping of epigenetic modifications during embryo implantation. DNA methyltransferase 3a (DNMT3A) and DNMT3B are responsible for establishing DNA methylation patterns produced through their de novo-type DNA methylation activity in implantation stage embryos and during germ cell differentiation. It was reported that conditional knockout of Dnmt3a in the uterus does not markedly affect endometrial function during embryo implantation, but the tissue-specific functions of Dnmt3b in the endometrium during embryo implantation remain poorly understood to investigate the role of Dnmt3b during peri-implantation period. Here, we generated Dnmt3b conditional knockout (Dnmt3bd/d) female mice using progesterone receptor-Cre mice and examined the role of Dnmt3b during embryo implantation. Dnmt3bd/d female mice exhibited compromised fertility, which was associated with defective decidualization, but not endometrial receptivity. Furthermore, results showed loss of Dnmt3b did not lead to altered genomic methylation patterns of the decidual endometrium during early pregnancy. Transcriptome sequencing analysis of uteri from day 6 pregnant mice identified phosphoglycerate kinase 1 (Pgk1) as one of the most variable genes in Dnmt3bd/d decidual endometrium. Potential roles of PGK1 in the decidualization process during early pregnancy were confirmed. Lastly, the compromised decidualization upon the downregulation of Dnmt3b could be reversed by overexpression of Pgk1. Collectively, our findings indicate that uterine deficiency of Dnmt3b impairs decidualization and consequent embryo implantation defects.
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Affiliation(s)
- Jing Long
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Weike Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Mengyue Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Chao Tong
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Na Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Chuan Peng
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Taihang Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xinyi Mu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Fangfang Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China.
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China.
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Wang C, Zhao X, Zhang H, Bing Z, Wu Y, Li R, Yang Y, Yang K. Comprehensive analysis of immune-related genes associated with the microenvironment of patients with unexplained infertility. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:84. [PMID: 36819496 PMCID: PMC9929778 DOI: 10.21037/atm-22-5810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/07/2023] [Indexed: 01/30/2023]
Abstract
Background Disturbances in immunological responses and modulation lead to implantation and pregnancy failure and might be involved in the pathogenesis of infertility. This project aimed to screen and identify immune-related genes as potential biomarkers for treatment. Methods Gene expression profiles were obtained from Gene Expression Omnibus (GEO) databases. Differentially expressed genes (DEGs) were screened using GEO 2R to explore potential biomarkers. Protein-protein interaction (PPI) network analysis and functional enrichment analysis were applied to explore possible mechanisms. The deconvolution algorithm [referred to as Cell-type Identification by Estimating Relative Subsets of RNA Transcripts (CIBERSORT)] was employed to assess tissue-infiltrating immune cells. Western blot analysis and immunohistochemistry (IHC) were conducted for determination of protein levels. Results In this research, we identified 24 candidate immune-related DEGs via combined DEGs and functional analysis. We also found that the ratio of M0 macrophages and resting mast cells was higher in infertile group (P<0.05), whereas the amounts of activated natural killer (NK) cells was significantly lower compared with the control group (P<0.05). Furthermore, we evaluated the relationship between immune cells and candidate genes and found that 17 genes were related to M0 macrophages, resting mast cells, or activated NK cells. The genes CD40, PRF1, and EDN3 were chosen based on validation from independent datasets. Finally, our clinical samples confirmed the expression of the 3 genes. Conclusions The study recognized 3 genes that are signatures and could be potential biomarkers for unexplained infertility. These genes might guide the immunotherapy of these patients and become new treatment targets.
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Affiliation(s)
- Caiyun Wang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China;,Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, China;,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China;,Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
| | - Xiaodong Zhao
- The First Clinical Medical College of Lanzhou University, Lanzhou, China;,Reproductive Medicine Center of The First Hospital of Lanzhou University, Lanzhou, China
| | - Haibin Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China;,Department of Obstetrics and Gynecology, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Zhitong Bing
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China;,Department of Computational Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Yu Wu
- The First Clinical Medical College of Lanzhou University, Lanzhou, China;,Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Rui Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China;,Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China;,Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China
| | - Yongxiu Yang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China;,Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Kehu Yang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China;,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China;,Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China;,Department of Computational Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
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5
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Erten O, Taskomur AT, Albayrak M. Current Biomarkers for Endometrial Receptivity. Biomark Med 2022. [DOI: 10.2174/9789815040463122010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Implantation and the continuation of pregnancy occur through a complicated
and sophisticated dialogue, called “cross-talk,” which starts between the embryo and
the endometrium in the early stages of oocyte maturation. This dialogue provides
synchronization of the journey of the embryo to be implanted with the receptive
endometrium. Understanding the activity and function of the hormones and factors
involved in this dialogue will provide an understanding of endometrial receptivity,
which plays a key role in implantation, and the determination of biomarkers specific
for this period. As a result of the development of omics technology, it has become
possible to identify biomarkers specific to endometrial receptivity by performing
genomic, proteomic, and lipidomic analyses of these hormones and factors. The
determination of these biomarkers, their optimization, and making them usable in the
clinic will allow increased success in ART.
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Affiliation(s)
- Ozlem Erten
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences
University, Kutahya, Turkey
| | - Aysun Tekeli Taskomur
- Department of Obstetrics and Gynecology, Faculty of Medicine, Amasya University, Amasya,
Turkey
| | - Mustafa Albayrak
- Department of Obstetrics and Gynecology, Sisli Florence Nightingale Hospital, Istanbul, Turkey
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6
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Amjadi F, Zandieh Z, Mehdizadeh M, Ajdary M, Aghamajidi A, Raoufi E, Aflatoonian R. Molecular signature of immunological mechanism behind impaired endometrial receptivity in polycystic ovarian syndrome. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2022; 66:2359-3997000000476. [PMID: 35551681 PMCID: PMC9832857 DOI: 10.20945/2359-3997000000476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 11/03/2021] [Indexed: 11/23/2022]
Abstract
Objective Despite the treatment of anovulation, infertility is still one of the main complications in PCOS women during reproductive age, which appears to be mainly due to impaired uterine receptivity. This study investigated the transcriptome profiles of endometrium in PCOS patients and healthy fertile individuals as the control group. Methods Total mRNA was extracted from endometrial tissues of PCOS patients (n = 12) and healthy fertile individuals (n = 10) during the luteal phase. After cDNA synthesis, PCR array was performed using Human Female Infertility RT2 Profiler PCR Array kit (Qiagen, Cat.No: PAHS-164Z) for evaluating expression of 84 genes contributing to the female infertility. Results PCR Array data analysis identified significantly greater expression of CSF, IL11, IL15, IL1r1, IL1b, TNF, LIF, TNFRSF10B, TGFβ, C3, ITGA4 (Cd49d), SPP1, and Calca in PCOS women than in controls (P < 0.05). However, the expression of LIFR, C2, CD55, CFD, CALCA, LAM1, LAMC2, MMP2, MMP7, MMP9, ESR, SELL, ITGB3, and VCAM1 was significantly lower in PCOS group than in controls (P < 0.05). The results revealed dysregulation of immune-inflammatory molecules, complement activation and downregulation of IGF-I as well as adhesion molecules in PCOS group. Conclusion The findings of this study indicated some potential causes of reduced receptivity of endometrium thus compromising the fertility in PCOS patients.
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Affiliation(s)
- Fatemehsadat Amjadi
- Akbarabadi IVF clinic, Akbarabadi Hospital, Iran University of Medical Science, Tehran, Iran
- Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Zandieh
- Akbarabadi IVF clinic, Akbarabadi Hospital, Iran University of Medical Science, Tehran, Iran
- Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
- Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Marziyeh Ajdary
- Endometriosis Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Azin Aghamajidi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ehsan Raoufi
- Department of Medical Biotechnology, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Vaccines and Immunotherapeutics, Bioluence Biopharmaceutical Company, Tehran, Iran
| | - Reza Aflatoonian
- Department of Endocrinology and Female Infertility at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran,
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7
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Gastiazoro MP, Rossetti MF, Schumacher R, Stoker C, Durando M, Zierau O, Ramos JG, Varayoud J. Epigenetic disruption of placental genes by chronic maternal cafeteria diet in rats. J Nutr Biochem 2022; 106:109015. [DOI: 10.1016/j.jnutbio.2022.109015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 11/19/2021] [Accepted: 03/03/2022] [Indexed: 11/28/2022]
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Spatiotemporal endometrial transcriptome analysis revealed the luminal epithelium as key player during initial maternal recognition of pregnancy in the mare. Sci Rep 2021; 11:22293. [PMID: 34785745 PMCID: PMC8595723 DOI: 10.1038/s41598-021-01785-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/03/2021] [Indexed: 12/13/2022] Open
Abstract
During the period of maternal recognition of pregnancy (MRP) in the mare, the embryo needs to signal its presence to the endometrium to prevent regression of the corpus luteum and prepare for establishment of pregnancy. This is achieved by mechanical stimuli and release of various signaling molecules by the equine embryo while migrating through the uterus. We hypothesized that embryo's signals induce changes in the endometrial gene expression in a highly cell type-specific manner. A spatiotemporal transcriptomics approach was applied combining laser capture microdissection and low-input-RNA sequencing of luminal and glandular epithelium (LE, GE), and stroma of biopsy samples collected from days 10-13 of pregnancy and the estrous cycle. Two comparisons were performed, samples derived from pregnancies with conceptuses ≥ 8 mm in diameter (comparison 1) and conceptuses ≤ 8 mm (comparison 2) versus samples from cyclic controls. The majority of gene expression changes was identified in LE and much lower numbers of differentially expressed genes (DEGs) in GE and stroma. While 1253 DEGs were found for LE in comparison 1, only 248 were found in comparison 2. Data mining mainly focused on DEGs in LE and revealed regulation of genes related to prostaglandin transport, metabolism, and signaling, as well as transcription factor families that could be involved in MRP. In comparison to other mammalian species, differences in regulation of genes involved in epithelial barrier formation and conceptus attachment and implantation reflected the unique features of equine reproduction at the time of MRP at the molecular level.
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Sanchez D, Ganfornina MD. The Lipocalin Apolipoprotein D Functional Portrait: A Systematic Review. Front Physiol 2021; 12:738991. [PMID: 34690812 PMCID: PMC8530192 DOI: 10.3389/fphys.2021.738991] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/30/2021] [Indexed: 12/18/2022] Open
Abstract
Apolipoprotein D is a chordate gene early originated in the Lipocalin protein family. Among other features, regulation of its expression in a wide variety of disease conditions in humans, as apparently unrelated as neurodegeneration or breast cancer, have called for attention on this gene. Also, its presence in different tissues, from blood to brain, and different subcellular locations, from HDL lipoparticles to the interior of lysosomes or the surface of extracellular vesicles, poses an interesting challenge in deciphering its physiological function: Is ApoD a moonlighting protein, serving different roles in different cellular compartments, tissues, or organisms? Or does it have a unique biochemical mechanism of action that accounts for such apparently diverse roles in different physiological situations? To answer these questions, we have performed a systematic review of all primary publications where ApoD properties have been investigated in chordates. We conclude that ApoD ligand binding in the Lipocalin pocket, combined with an antioxidant activity performed at the rim of the pocket are properties sufficient to explain ApoD association with different lipid-based structures, where its physiological function is better described as lipid-management than by long-range lipid-transport. Controlling the redox state of these lipid structures in particular subcellular locations or extracellular structures, ApoD is able to modulate an enormous array of apparently diverse processes in the organism, both in health and disease. The new picture emerging from these data should help to put the physiological role of ApoD in new contexts and to inspire well-focused future research.
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Affiliation(s)
- Diego Sanchez
- Instituto de Biologia y Genetica Molecular, Unidad de Excelencia, Universidad de Valladolid-Consejo Superior de Investigaciones Cientificas, Valladolid, Spain
| | - Maria D Ganfornina
- Instituto de Biologia y Genetica Molecular, Unidad de Excelencia, Universidad de Valladolid-Consejo Superior de Investigaciones Cientificas, Valladolid, Spain
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Hernández-Vargas P, Muñoz M, Domínguez F. Identifying biomarkers for predicting successful embryo implantation: applying single to multi-OMICs to improve reproductive outcomes. Hum Reprod Update 2020; 26:264-301. [PMID: 32096829 DOI: 10.1093/humupd/dmz042] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 10/08/2019] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Successful embryo implantation is a complex process that requires the coordination of a series of events, involving both the embryo and the maternal endometrium. Key to this process is the intricate cascade of molecular mechanisms regulated by endocrine, paracrine and autocrine modulators of embryonic and maternal origin. Despite significant progress in ART, implantation failure still affects numerous infertile couples worldwide and fewer than 10% of embryos successfully implant. Improved selection of both the viable embryos and the optimal endometrial phenotype for transfer remains crucial to enhancing implantation chances. However, both classical morphological embryo selection and new strategies incorporated into clinical practice, such as embryonic genetic analysis, morphokinetics or ultrasound endometrial dating, remain insufficient to predict successful implantation. Additionally, no techniques are widely applied to analyse molecular signals involved in the embryo-uterine interaction. More reliable biological markers to predict embryo and uterine reproductive competence are needed to improve pregnancy outcomes. Recent years have seen a trend towards 'omics' methods, which enable the assessment of complete endometrial and embryonic molecular profiles during implantation. Omics have advanced our knowledge of the implantation process, identifying potential but rarely implemented biomarkers of successful implantation. OBJECTIVE AND RATIONALE Differences between the findings of published omics studies, and perhaps because embryonic and endometrial molecular signatures were often not investigated jointly, have prevented firm conclusions being reached. A timely review summarizing omics studies on the molecular determinants of human implantation in both the embryo and the endometrium will help facilitate integrative and reliable omics approaches to enhance ART outcomes. SEARCH METHODS In order to provide a comprehensive review of the literature published up to September 2019, Medline databases were searched using keywords pertaining to omics, including 'transcriptome', 'proteome', 'secretome', 'metabolome' and 'expression profiles', combined with terms related to implantation, such as 'endometrial receptivity', 'embryo viability' and 'embryo implantation'. No language restrictions were imposed. References from articles were also used for additional literature. OUTCOMES Here we provide a complete summary of the major achievements in human implantation research supplied by omics approaches, highlighting their potential to improve reproductive outcomes while fully elucidating the implantation mechanism. The review highlights the existence of discrepancies among the postulated biomarkers from studies on embryo viability or endometrial receptivity, even using the same omic analysis. WIDER IMPLICATIONS Despite the huge amount of biomarker information provided by omics, we still do not have enough evidence to link data from all omics with an implantation outcome. However, in the foreseeable future, application of minimally or non-invasive omics tools, together with a more integrative interpretation of uniformly collected data, will help to overcome the difficulties for clinical implementation of omics tools. Omics assays of the embryo and endometrium are being proposed or already being used as diagnostic tools for personalised single-embryo transfer in the most favourable endometrial environment, avoiding the risk of multiple pregnancies and ensuring better pregnancy rates.
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Affiliation(s)
- Purificación Hernández-Vargas
- IVI-RMA Alicante, Innovation. Avda. de Denia 111, 03015 Alicante, Spain.,Fundación IVI, Innovation-IIS La Fe, Avda. Fernando Abril Martorell 106, Torre A, 1° 1.23, 46026 Valencia, Spain
| | - Manuel Muñoz
- IVI-RMA Alicante, Innovation. Avda. de Denia 111, 03015 Alicante, Spain.,Fundación IVI, Innovation-IIS La Fe, Avda. Fernando Abril Martorell 106, Torre A, 1° 1.23, 46026 Valencia, Spain
| | - Francisco Domínguez
- Fundación IVI, Innovation-IIS La Fe, Avda. Fernando Abril Martorell 106, Torre A, 1° 1.23, 46026 Valencia, Spain
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Baron C, Haouzi D, Gala A, Ferrieres-Hoa A, Vintejoux E, Brouillet S, Hamamah S. [Endometrial receptivity in assisted reproductive techniques: An aspect to investigate in embryo implantation failure]. ACTA ACUST UNITED AC 2020; 49:128-136. [PMID: 32721539 DOI: 10.1016/j.gofs.2020.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Indexed: 10/23/2022]
Abstract
Infertility affects between 8 and 12% of reproductive-age couples worldwide. Despite improvements in assisted reproductive techniques (ART), live birth rates are still limited. In clinical practice, imaging and microscopy are currently widely used, but their diagnostic effectiveness remains limited. In research, the emergence of innovative techniques named OMICS would improve the identification of the implantation window, while progressing in the understanding of the pathophysiological mechanisms involved in embryo implantation failures. To date, transcriptomic analysis seems to be the most promising approach in clinical research. The objective of this review is to present the results obtained with the different approaches available in clinical practice and in research to assess endometrial receptivity in patients undergoing ART.
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Affiliation(s)
- C Baron
- Inserm U1203, développement embryonnaire précoce humain et pluripotence, université Montpellier, Montpellier, France
| | - D Haouzi
- Inserm U1203, développement embryonnaire précoce humain et pluripotence, université Montpellier, Montpellier, France
| | - A Gala
- Département de biologie de la reproduction, biologie de la reproduction et diagnostic pre-implantatoire, université Montpellier, CHU Montpellier, Montpellier, France
| | - A Ferrieres-Hoa
- Département de biologie de la reproduction, biologie de la reproduction et diagnostic pre-implantatoire, université Montpellier, CHU Montpellier, Montpellier, France
| | - E Vintejoux
- Département de médecine de la reproduction, CHU de Montpellier, 34000 Montpellier, France
| | - S Brouillet
- Inserm U1203, développement embryonnaire précoce humain et pluripotence, université Montpellier, Montpellier, France; Département de biologie de la reproduction, biologie de la reproduction et diagnostic pre-implantatoire, université Montpellier, CHU Montpellier, Montpellier, France; Inserm 1036, laboratoire biologie du cancer et de l'infection (BCI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), institut de biosciences et biotechnologies de Grenoble (BIG), université Grenoble-Alpes, 38000 Grenoble, France; Centre clinique et biologique d'assistance médicale à la procréation - centre d'étude et de conservation des œufs et du sperme humains (CECOS), hôpital Couple-Enfant, centre hospitalier universitaire de Grenoble, La Tronche, France.
| | - S Hamamah
- Inserm U1203, développement embryonnaire précoce humain et pluripotence, université Montpellier, Montpellier, France; Département de biologie de la reproduction, biologie de la reproduction et diagnostic pre-implantatoire, université Montpellier, CHU Montpellier, Montpellier, France.
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12
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Recuero S, Sánchez JM, Mateo-Otero Y, Bagés-Arnal S, McDonald M, Behura SK, Spencer TE, Kenny DA, Yeste M, Lonergan P, Fernandez-Fuertes B. Mating to Intact, but Not Vasectomized, Males Elicits Changes in the Endometrial Transcriptome: Insights From the Bovine Model. Front Cell Dev Biol 2020; 8:547. [PMID: 32766237 PMCID: PMC7381276 DOI: 10.3389/fcell.2020.00547] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/10/2020] [Indexed: 12/18/2022] Open
Abstract
An appropriate female reproductive environment is essential for pregnancy success. In several species, including mice, pigs and horses, seminal plasma (SP) components have been shown to modulate this environment, leading to increased embryo viability and implantation. Due to the characteristics of mating in the aforementioned species, SP comes into direct contact with the uterus. However, it is questionable whether any SP reaches the uterus in species that ejaculate inside the vagina, such as humans and cattle. Hence, we hypothesized that sperm, perhaps acting as a vehicle for SP factors, play a more important role in the modulation of the maternal uterine environment in these species. In addition, changes elicited by SP and/or sperm may originate in the vagina and propagate to more distal regions of the female reproductive tract. To test these hypotheses, a bovine model in which heifers were mated to intact or vasectomized bulls or were left unmated was used. RNA-sequencing of endometrial samples collected 24 h after mating with a vasectomized bull did not reveal any differentially expressed genes (DEGs) in comparison with control samples. However, the endometrium of heifers mated with intact bulls exhibited 24 DEGs when compared to heifers mated with vasectomized bulls, and 22 DEGs when compared to unmated control heifers. The expression of a set of cytokines (IL6, IL1A, IL8, and TNFA) and candidate genes identified in the endometrial RNA-sequencing (PLA2G10, CX3CL1, C4BPA, PRSS2, BLA-DQB, and CEBPD) were assessed by RT-qPCR in the vagina and oviductal ampulla. No differences in expression of these genes were observed between treatments in any region. However, mating to both intact and vasectomized bulls induced an increase in IL1A and TNFA expression in the vagina compared to the oviduct. These data indicate that sperm, but not secretions from the accessory glands alone, induce modest changes in endometrial gene expression after natural mating in cattle. However, it is not clear whether this effect is triggered by inherent sperm proteins or SP proteins bound to sperm surface at the time of ejaculation.
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Affiliation(s)
- Sandra Recuero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - José María Sánchez
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Yentel Mateo-Otero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Sandra Bagés-Arnal
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Susanta K Behura
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - Thomas E Spencer
- Division of Animal Sciences, University of Missouri, Columbia, MO, United States
| | - David A Kenny
- Animal and Bioscience Research Centre, Teagasc Grange, Meath, Ireland
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Pat Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Beatriz Fernandez-Fuertes
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
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13
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Milesi MM, Durando M, Lorenz V, Gastiazoro MP, Varayoud J. Postnatal exposure to endosulfan affects uterine development and fertility. Mol Cell Endocrinol 2020; 511:110855. [PMID: 32437785 DOI: 10.1016/j.mce.2020.110855] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 03/30/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022]
Abstract
Endosulfan is an organochlorine pesticide (OCP) used in large-scale agriculture for controlling a variety of insects and mites that attack food and non-food crops. Although endosulfan has been listed in the Stockholm Convention as a persistent organic pollutant to be worldwide banned, it is still in use in some countries. Like other OCPs, endosulfan is bioaccumulative, toxic and persistent in the environment. Human unintentional exposure may occur through air inhalation, dietary, skin contact, as well as, via transplacental route and breast feeding. Due to its lipophilic nature, endosulfan is rapidly absorbed into the gastrointestinal tract and bioaccumulates in the fatty tissues. Similar to other OCPs, endosulfan has been classified as an endocrine disrupting chemical (EDC). Endocrine action of endosulfan on development and reproductive function of males has been extensively discussed; however, endosulfan effects on the female reproductive tract have received less attention. This review provides an overview of: i) the fate and levels of endosulfan in the environment and human population, ii) the potential estrogenic properties of endosulfan in vitro and in vivo, iii) its effects on uterine development, and iv) the long-term effects on female fertility and uterine functional differentiation during early gestation.
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Affiliation(s)
- M M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina.
| | - M Durando
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - V Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina
| | - M P Gastiazoro
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - J Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
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14
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Wang X, Yu Q. An update on the progress of transcriptomic profiles of human endometrial receptivity. Biol Reprod 2019; 98:440-448. [PMID: 29365037 DOI: 10.1093/biolre/ioy018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/19/2018] [Indexed: 12/19/2022] Open
Abstract
Despite advances in our understanding of fertility, implantation failure remains a significant problem for both spontaneous and assisted pregnancies. Most research efforts concerning the process of implantation are embryo-centric, with a dearth of studies on endometrial factors. Currently, there are no practical and effective diagnostic tools available to precisely predict endometrial receptivity. Transcriptomics, a field based on microarray technology, has a number of procedures for clinical applications, although the functional relevance of most identified genes remains unclear. Importantly, RNA sequencing will further improve the precision and broaden the clinical use of the transcriptome by detecting previously undiscovered genes, which could be used to further our understanding of endometrial receptivity. In this review, potential biomarkers based on endometrium gene expression profiles of human endometrial receptivity were described and compared in natural and stimulated cycles toward discovering future prospects for personalized medical approaches. The intent of this synthesis is to provide researchers, doctors, and clinicians in the field with a better understanding of endometrium receptivity, promote further study in the transcriptome in embryo implantation, and ultimately, improve pregnancy outcome.
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Affiliation(s)
- Xi Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Qi Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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15
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Lorenz V, Milesi MM, Schimpf MG, Luque EH, Varayoud J. Epigenetic disruption of estrogen receptor alpha is induced by a glyphosate-based herbicide in the preimplantation uterus of rats. Mol Cell Endocrinol 2019; 480:133-141. [PMID: 30391669 DOI: 10.1016/j.mce.2018.10.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/29/2018] [Accepted: 10/31/2018] [Indexed: 12/15/2022]
Abstract
Previously, we have shown that perinatal exposure to a glyphosate-based herbicide (GBH) induces implantation failures in rats. Estrogen receptor alpha (ERα) is critical for successful implantation. ERα transcription is under the control of five promoters (E1, OT, O, ON, and OS), which yield different transcripts. Here, we studied whether perinatal exposure to a GBH alters uterine ERα gene expression and prompts epigenetic modifications in its regulatory regions during the preimplantation period. Pregnant rats (F0) were orally treated with 350 mg glyphosate/kg bw/day through food from gestational day (GD) 9 until weaning. F1 females were bred, and uterine samples were collected on GD5 (preimplantation period). ERα mRNA levels and its transcript variants were evaluated by RT-qPCR. Enzyme-specific restriction sites and predicted transcription factors were searched in silico in the ERα promoter regions to assess the methylation status using the methylation-sensitive restriction enzymes-PCR technique. Post-translational modifications of histones were studied by the chromatin immunoprecipitation assay. GBH upregulated the expression of total ERα mRNA by increasing the abundance of the ERα-O transcript variant. In addition, different epigenetic changes were detected in the O promoter. A decrease in DNA methylation was observed in one of the three sites evaluated in the O promoter. Moreover, histone H4 acetylation and histone H3 lysine 9 trimethylation (H3K9me3) were enriched in the O promoter in GBH-exposed rats, whereas H3K27me3 was decreased. All these alterations could account for the increase in ERα gene expression. Our findings show that perinatal exposure to a GBH causes long-term epigenetic disruption of the uterine ERα gene, which could be associated with the GBH-induced implantation failures.
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Affiliation(s)
- Virginia Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Marlise Guerrero Schimpf
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina.
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16
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Cummings M, Massey KA, Mappa G, Wilkinson N, Hutson R, Munot S, Saidi S, Nugent D, Broadhead T, Wright AI, Barber S, Nicolaou A, Orsi NM. Integrated eicosanoid lipidomics and gene expression reveal decreased prostaglandin catabolism and increased 5-lipoxygenase expression in aggressive subtypes of endometrial cancer. J Pathol 2018; 247:21-34. [PMID: 30168128 DOI: 10.1002/path.5160] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/30/2018] [Accepted: 08/26/2018] [Indexed: 02/06/2023]
Abstract
Eicosanoids comprise a diverse group of bioactive lipids which orchestrate inflammation, immunity, and tissue homeostasis, and whose dysregulation has been implicated in carcinogenesis. Among the various eicosanoid metabolic pathways, studies of their role in endometrial cancer (EC) have very much been confined to the COX-2 pathway. This study aimed to determine changes in epithelial eicosanoid metabolic gene expression in endometrial carcinogenesis; to integrate these with eicosanoid profiles in matched clinical specimens; and, finally, to investigate the prognostic value of candidate eicosanoid metabolic enzymes. Eicosanoids and related mediators were profiled using liquid chromatography-tandem mass spectrometry in fresh frozen normal, hyperplastic, and cancerous (types I and II) endometrial specimens (n = 192). Sample-matched epithelia were isolated by laser capture microdissection and whole genome expression analysis was performed using microarrays. Integration of eicosanoid and gene expression data showed that the accepted paradigm of increased COX-2-mediated prostaglandin production does not apply in EC carcinogenesis. Instead, there was evidence for decreased PGE2 /PGF2α inactivation via 15-hydroxyprostaglandin dehydrogenase (HPGD) in type II ECs. Increased expression of 5-lipoxygenase (ALOX5) mRNA was also identified in type II ECs, together with proportional increases in its product, 5-hydroxyeicosatetraenoic acid (5-HETE). Decreased HPGD and elevated ALOX5 mRNA expression were associated with adverse outcome, which was confirmed by immunohistochemical tissue microarray analysis of an independent series of EC specimens (n = 419). While neither COX-1 nor COX-2 protein expression had prognostic value, low HPGD combined with high ALOX5 expression was associated with the worst overall and progression-free survival. These findings highlight HPGD and ALOX5 as potential therapeutic targets in aggressive EC subtypes. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Michele Cummings
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
| | - Karen A Massey
- School of Pharmacy and Centre for Skin Sciences, Bradford School of Pharmacy, School of Life Sciences, University of Bradford, Bradford, UK
| | - Georgia Mappa
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
| | - Nafisa Wilkinson
- Department of Cellular Pathology, University College London Hospital NHS Trust, London, UK
| | - Richard Hutson
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Sarika Munot
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Sam Saidi
- Department of Obstetrics and Gynaecology, Central Clinical School, University of Sydney, Camperdown, Australia
| | - David Nugent
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Timothy Broadhead
- Department of Gynaecological Oncology, St James's Institute of Oncology, St James's University Hospital, Leeds, UK
| | - Alexander I Wright
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
| | - Stuart Barber
- Department of Statistics, University of Leeds, Leeds, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Nicolas M Orsi
- Department of Pathology and Tumour Biology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Leeds, UK
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17
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Bastu E, Demiral I, Gunel T, Ulgen E, Gumusoglu E, Hosseini MK, Sezerman U, Buyru F, Yeh J. Potential Marker Pathways in the Endometrium That May Cause Recurrent Implantation Failure. Reprod Sci 2018; 26:879-890. [PMID: 30081718 DOI: 10.1177/1933719118792104] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The aim of this prospective cohort study was to identify altered biologic processes in the endometrium that may be potential markers of receptive endometrium in patients with repeated implantation failure (RIF) as compared with fertile controls. The study was conducted in a university-affiliated in vitro fertilization (IVF) gynecology clinic and molecular biology and genetics laboratory. Healthy fertile controls (n = 24) and patients with RIF (n = 24) were recruited. Window of implantation gene profiling associated with RIF was performed. Six hundred forty-one differentially expressed genes were identified, and 44 pathways were found enriched. Upon clustering of the enriched pathways, 9 representative pathways were established. The important pathways that were identified included circadian rhythm, pathways in cancer, proteasome, complement and coagulation cascades, citrate cycle, adherens junction, immune system and inflammation, cell cycle, and renin-angiotensin system. The involvement of the circadian rhythm pathway and other related pathways may alter the endometrium's functioning to ultimately cause RIF. Furthermore, we found that the pathogenesis of RIF was multifaceted and that numerous processes were involved. We believe that a better understanding of the underlying mechanisms of RIF will ultimately give rise to better treatment opportunities and to better outcomes in IVF.
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Affiliation(s)
- Ercan Bastu
- Department of Obstetrics and Gynecology, Acibadem University School of Medicine, Ataşehir, Istanbul, Turkey.
| | - Irem Demiral
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Tuba Gunel
- Department of Molecular Biology and Genetics, Istanbul University, Istanbul, Turkey
| | - Ege Ulgen
- Department of Biostatistics and Medical Informatics, Acibadem University School of Medicine, Istanbul, Turkey
| | - Ece Gumusoglu
- Department of Molecular Biology and Genetics, Istanbul University, Istanbul, Turkey
| | | | - Ugur Sezerman
- Department of Biostatistics and Medical Informatics, Acibadem University School of Medicine, Istanbul, Turkey
| | - Faruk Buyru
- Department of Obstetrics and Gynecology, Acibadem University School of Medicine, Ataşehir, Istanbul, Turkey
| | - John Yeh
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard University, Boston, MA, USA
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18
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Parks JC, McCallie BR, Patton AL, Al-Safi ZA, Polotsky AJ, Griffin DK, Schoolcraft WB, Katz-Jaffe MG. The impact of infertility diagnosis on embryo-endometrial dialogue. Reproduction 2018; 155:543-552. [PMID: 29636406 DOI: 10.1530/rep-17-0566] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 04/10/2018] [Indexed: 12/24/2022]
Abstract
Initial stages of implantation involve bi-directional molecular crosstalk between the blastocyst and endometrium. This study investigated an association between infertility etiologies, specifically advanced maternal age (AMA) and endometriosis, on the embryo-endometrial molecular dialogue prior to implantation. Co-culture experiments were performed with endometrial epithelial cells (EEC) and cryopreserved day 5 blastocysts (n = 41 ≥ Grade 3BB) donated from patients presenting with AMA or endometriosis, compared to fertile donor oocyte controls. Extracellular vesicles isolated from co-culture supernatant were analyzed for miRNA expression and revealed significant alterations correlating to AMA or endometriosis. Specifically, AMA resulted in 16 miRNAs with increased expression (P ≤ 0.05) and strong evidence for negative regulation toward 206 target genes. VEGFA, a known activator of cell adhesion, displayed decreased expression (P ≤ 0.05), validating negative regulation by 4 of these increased miRNAs: miR-126; 150; 29a; 29b (P ≤ 0.05). In endometriosis patients, a total of 10 significantly altered miRNAs displayed increased expression compared to controls (miR-7b; 9; 24; 34b; 106a; 191; 200b; 200c; 342-3p; 484) (P ≤ 0.05), targeting 1014 strong evidence-based genes. Three target genes of miR-106a (CDKN1A, E2F1 and RUNX1) were independently validated. Functional annotation analysis of miRNA-target genes revealed enriched pathways for both infertility etiologies, including disrupted cell cycle regulation and proliferation (P ≤ 0.05). These extracellular vesicle-bound secreted miRNAs are key transcriptional regulators in embryo-endometrial dialogue and may be prospective biomarkers of implantation success. One of the limitations of this study is that it was a stimulated, in vitro model and therefore may not accurately reflect the in-vivo environment.
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Affiliation(s)
- Jason C Parks
- Colorado Center for Reproductive MedicineLone Tree, Colorado, USA .,University of KentCanterbury, UK
| | - Blair R McCallie
- Colorado Center for Reproductive MedicineLone Tree, Colorado, USA.,University of KentCanterbury, UK
| | - Alyssa L Patton
- Colorado Center for Reproductive MedicineLone Tree, Colorado, USA
| | - Zain A Al-Safi
- Department of Obstetrics and GynecologyUniversity of Colorado School of Medicine, Aurora, Colorado, USA
| | - Alex J Polotsky
- Department of Obstetrics and GynecologyUniversity of Colorado School of Medicine, Aurora, Colorado, USA
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Tapia-Pizarro A, Archiles S, Argandoña F, Valencia C, Zavaleta K, Cecilia Johnson M, González-Ramos R, Devoto L. hCG activates Epac-Erk1/2 signaling regulating Progesterone Receptor expression and function in human endometrial stromal cells. Mol Hum Reprod 2018; 23:393-405. [PMID: 28333280 DOI: 10.1093/molehr/gax015] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 03/09/2017] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION How does hCG signal in human endometrial stromal cells (ESCs) and what is its role in regulating ESC function? SUMMARY ANSWER hCG signaling in ESCs activates the extracellular signal-regulated protein kinases 1 and 2 (Erk1/2) pathway through exchange protein activated by cyclic AMP (cAMP) (Epac) and transiently increases progesterone receptor (PR) transcript and protein expression and its transcriptional function. WHAT IS KNOWN ALREADY hCG is one of the earliest embryo-derived secreted signals in the endometrium, which abundantly expresses LH/hCG receptors. hCG signals through cAMP/protein kinase A (PKA) in gonadal cells, but in endometrial epithelial cells, hCG induces Erk1/2 activation independent of the cAMP/PKA pathway. Few data exist concerning the signal transduction pathways triggered by hCG in ESCs and their role in regulation of ESC function. STUDY DESIGN, SIZE, DURATION This is an in vitro study comprising patients undergoing benign gynecological surgery (n = 46). PARTICIPANTS/MATERIALS, SETTING, METHODS Endometrial samples were collected from normal cycling women during the mid-secretory phase for ESCs isolation. The study conducted in an academic research laboratory within a tertiary-care hospital. The activation of the Erk1/2 signal transduction pathway elicited by hCG was evaluated in ESC. Signaling pathway inhibitors were used to examine the roles of PKA, PI3K, PKC, adenylyl cyclase and Epac on the hCG-stimulated up-regulation of phospho-Erk1/2 (pErk1/2). Erk1/2 phosphorylation was determined by immunoblot. siRNA targeting Epac was used to investigate the molecular mechanisms. To assess the role of Erk1/2 signaling induced by hCG on ESC function, gene expression regulation was examined by immunofluorescence and real-time quantitative PCR. The role of PR on the regulation of transcript levels was studied using progesterone and the PR antagonist RU486. All experiments were conducted using at least three different cell culture preparations in triplicate. MAIN RESULTS AND THE ROLE OF CHANCE Addition of hCG to ESCs in vitro induced the phosphorylation of Erk1/2 through cAMP accumulation. Such induction could not be blocked by inhibitors for PKA, PKC and PI3K. Epac inhibition and knockdown with siRNA prevented pErk1/2 induction by hCG. ESCs stimulated with hCG for up to 72 h showed a significant increase in PR mRNA and immunofluorescent label at 48 h only; an effect that was abrogated with the mitogen-activated protein kinase kinase inhibitor UO126. In addition, the hCG-activated Erk1/2 pathway significantly decreased the mRNA levels for secreted frizzled-related protein 4 (SFRP4) at 24 h, whereas it increased those for homeobox A10 (HOXA10) at 48 h (P = 0.041 and P = 0.022 versus control, respectively). Prolactin mRNA levels were not significantly modified. HOXA10 mRNA up-regulation by hCG was not enhanced by co-stimulation with progesterone; however, it was completely abolished in the presence of RU486 (P = 0.036 hCG versus hCG + RU486). LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION This is an in vitro study utilizing stromal cell cultures from human endometrial tissues. Furthermore, results obtained should also be confirmed in vivo in the context of the whole human endometrial tissue and hormonal milieu. The in vitro experiments using hCG have been conducted without other hormones/factors that may also modulate the ESCs response to hCG. WIDER IMPLICATIONS OF THE FINDINGS We have determined that hCG induces the PR through the Erk1/2 pathway in ESCs which may render them more sensitive to progesterone, increasing our understanding about the effects of hCG at the embryo-maternal interface. The activation of such a pathway in the context of the hormonal milieu during the window of implantation might contribute to a successful dialog between the embryo and the uterus, leading to appropriate endometrial function. Defective hCG signaling in the endometrial stromal tissue may lead to an incomplete uterine response, compromising embryo implantation and early pregnancy. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the National Fund for Scientific and Technological Development, Government of Chile (FONDECYT) grants 11100443 and 1140614 (A.T.-P.). The authors have no conflicts of interest to declare.
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Affiliation(s)
- Alejandro Tapia-Pizarro
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - Sebastián Archiles
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - Felipe Argandoña
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - Cecilia Valencia
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - Keyla Zavaleta
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - M Cecilia Johnson
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - Reinaldo González-Ramos
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
| | - Luigi Devoto
- Institute of Maternal and Child Research (IDIMI), Faculty of Medicine, University of Chile, Av. Sta. Rosa 1234, 2do piso, Santiago 8360160, Chile
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20
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Milesi MM, Varayoud J, Ramos JG, Luque EH. Uterine ERα epigenetic modifications are induced by the endocrine disruptor endosulfan in female rats with impaired fertility. Mol Cell Endocrinol 2017; 454:1-11. [PMID: 28559116 DOI: 10.1016/j.mce.2017.05.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/24/2017] [Accepted: 05/24/2017] [Indexed: 01/30/2023]
Abstract
High ERα activity may disrupt the window of uterine receptivity, causing defective implantation. We investigated whether implantation failures prompted by endosulfan are associated with aberrant ERα uterine expression and DNA methylation status during the pre-implantation period. ERα-dependent target genes that play a crucial role in the uterine receptivity for embryo attachment and implantation were also investigated. Newborn female rats received corn oil (vehicle, Control), 6 μg/kg/d of endosulfan (Endo6) or 600 μg/kg/d of endosulfan (Endo600) on postnatal days (PND) 1, 3, 5, and 7. On PND90, females were made pregnant and on gestational day 5 (GD5, pre-implantation period) uterine samples were collected. ERα expression was assessed at protein and mRNA levels by immunohistochemistry and real time RT-PCR, respectively. ERα transcript variants mRNA containing alternative 5'-untranslated regions (5'UTRs) were also evaluated. We searched for predicted transcription factors binding sites in ERα regulatory regions and assessed their methylation status by Methylation-Sensitive Restriction Enzymes-PCR technique (MSRE-PCR). The expression of the ERα-dependent uterine target genes, i.e. mucin-1 (MUC-1), insulin-like growth factor-1 (IGF-1), and leukemia inhibitory factor (LIF), was assessed by real time RT-PCR. Both doses of endosulfan increased the expression of ERα and its transcript variants ERα-OS, ERα-O, ERα-OT and ERα-E1. Moreover, a decreased DNA methylation levels were detected in some ERα regulatory regions, suggesting an epigenetic up-regulation of it transcription. ERα overexpression was associated with an induction of its downstream genes, MUC-1 and IGF-1, suggesting that endosulfan might alter the uterine estrogenic pathway compromising uterine receptivity. These alterations could account, at least in part, for the endosulfan-induced implantation failures.
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Affiliation(s)
- María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina.
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Jorge G Ramos
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
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21
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Altmäe S, Koel M, Võsa U, Adler P, Suhorutšenko M, Laisk-Podar T, Kukushkina V, Saare M, Velthut-Meikas A, Krjutškov K, Aghajanova L, Lalitkumar PG, Gemzell-Danielsson K, Giudice L, Simón C, Salumets A. Meta-signature of human endometrial receptivity: a meta-analysis and validation study of transcriptomic biomarkers. Sci Rep 2017; 7:10077. [PMID: 28855728 PMCID: PMC5577343 DOI: 10.1038/s41598-017-10098-3] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 07/28/2017] [Indexed: 12/21/2022] Open
Abstract
Previous transcriptome studies of the human endometrium have revealed hundreds of simultaneously up- and down-regulated genes that are involved in endometrial receptivity. However, the overlap between the studies is relatively small, and we are still searching for potential diagnostic biomarkers. Here we perform a meta-analysis of endometrial-receptivity associated genes on 164 endometrial samples (76 from 'pre-receptive' and 88 from mid-secretory, 'receptive' phase endometria) using a robust rank aggregation (RRA) method, followed by enrichment analysis, and regulatory microRNA prediction. We identify a meta-signature of endometrial receptivity involving 57 mRNA genes as putative receptivity markers, where 39 of these we confirm experimentally using RNA-sequencing method in two separate datasets. The meta-signature genes highlight the importance of immune responses, the complement cascade pathway and the involvement of exosomes in mid-secretory endometrial functions. Bioinformatic prediction identifies 348 microRNAs that could regulate 30 endometrial-receptivity associated genes, and we confirm experimentally the decreased expression of 19 microRNAs with 11 corresponding up-regulated meta-signature genes in our validation experiments. The 57 identified meta-signature genes and involved pathways, together with their regulatory microRNAs could serve as promising and sought-after biomarkers of endometrial receptivity, fertility and infertility.
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Affiliation(s)
- Signe Altmäe
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, and Karolinska University Hospital, 17176, Stockholm, Sweden.
- Competence Centre on Health Technologies, 50410, Tartu, Estonia.
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, University of Granada, 18016, Granada, Spain.
| | - Mariann Koel
- Competence Centre on Health Technologies, 50410, Tartu, Estonia
- Department of Biosciences and Nutrition, and Center for Innovative Medicine, Karolinska Institutet, 14183, Huddinge, Sweden
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, 51010, Tartu, Estonia
| | - Urmo Võsa
- Estonian Genome Center, University of Tartu, 51010, Tartu, Estonia
| | - Priit Adler
- Institute of Computer Science, University of Tartu, Tartu, 50409, Estonia
| | - Marina Suhorutšenko
- Competence Centre on Health Technologies, 50410, Tartu, Estonia
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, 51014, Tartu, Estonia
| | - Triin Laisk-Podar
- Competence Centre on Health Technologies, 50410, Tartu, Estonia
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, 51014, Tartu, Estonia
| | | | - Merli Saare
- Competence Centre on Health Technologies, 50410, Tartu, Estonia
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, 51014, Tartu, Estonia
| | | | - Kaarel Krjutškov
- Competence Centre on Health Technologies, 50410, Tartu, Estonia
- Department of Biosciences and Nutrition, and Center for Innovative Medicine, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Lusine Aghajanova
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, 94143-0132, CA, USA
| | - Parameswaran G Lalitkumar
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, and Karolinska University Hospital, 17176, Stockholm, Sweden
| | - Kristina Gemzell-Danielsson
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, and Karolinska University Hospital, 17176, Stockholm, Sweden
| | - Linda Giudice
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, 94143-0132, CA, USA
| | - Carlos Simón
- Department of Obstetrics and Gynaecology, Valencia University & INCLIVA, Igenomix & Fundación IVI, 46021, Valencia, Spain
| | - Andres Salumets
- Competence Centre on Health Technologies, 50410, Tartu, Estonia
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, 51014, Tartu, Estonia
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, FI-00029, HUS, Finland
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22
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Fan LJ, Han HJ, Guan J, Zhang XW, Cui QH, Shen H, Shi C. Aberrantly expressed long noncoding RNAs in recurrent implantation failure: A microarray related study. Syst Biol Reprod Med 2017; 63:269-278. [PMID: 28441042 DOI: 10.1080/19396368.2017.1310329] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Long noncoding RNAs (lncRNAs) are a class of noncoding RNAs longer than 200 nucleotides. They were long regarded as transcription noise for their low expression and non-protein coding features. Recent published reports indicate that lncRNAs are involved in virtually every aspect of human biology. We aimed to profile the endometrial lncRNA expression pattern in women with recurrent implantation failure (RIF) and predict the function of the genes of the dysregulated lncRNA transcripts. Endometrial samples (24) were collected during window of implantation (14 RIF women and 10 women who conceived after embryo transfer). For the microarray study, 7 RIF endometrium and 5 control endometrium were selected, and quantitative real-time PCR (RT-qPCR) was performed on the rest of the endometrial samples to validate the microarray results. After that, lncRNA-mRNA co-expression analysis, GO analysis, KEGG analysis, and lncRNA-transcript factor (TF) analysis were carried out to analyze the gene functions of the dysregulated lncRNA transcripts. We detected a total of 197 lncRNA transcripts that were dysregulated in RIF endometrium compared with the control group. The relative expression levels of eight selected lncRNA transcripts were validated by RT-qPCR and were in accordance with the microarray outcomes. GO and KEGG analyses revealed that the coexpressed mRNA transcripts were involved in pathways that may affect endometrial receptivity such as cell adhesion. The lncRNA target predictions provided potential TF targets of the dysregulated lncRNA transcripts. Our results indicate that lncRNA expression profiles of RIF endometrium were different from that of normal receptive endometrial, suggesting that lncRNAs may regulate endometrial receptivity. ABBREVIATIONS GO: Gene Oncology; GFs: growth factors; KEGG: Kyoto Encyclopedia of Genes and Genomes; lncRNAs: long noncoding RNAs; PCA3: prostate cancer antigen 3; RT-qPCR: quantitative real-time PCR; RIF: recurrent implantation failure; STK: serine/threonine kinase; TF: transcription factor; WOI: window of implantation.
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Affiliation(s)
- Li-Juan Fan
- a Department of Reproductive Medical Center , Peking University People's Hospital , Beijing , China
| | - Hong-Jing Han
- a Department of Reproductive Medical Center , Peking University People's Hospital , Beijing , China
| | - Jing Guan
- a Department of Reproductive Medical Center , Peking University People's Hospital , Beijing , China
| | - Xiao-Wei Zhang
- b Urology , Peking University People's Hospital , Beijing , China
| | - Qing-Hua Cui
- c Department of Biomedical Informatics , School of Basic Medical Sciences, Peking University , Beijing , China
| | - Huan Shen
- a Department of Reproductive Medical Center , Peking University People's Hospital , Beijing , China
| | - Cheng Shi
- a Department of Reproductive Medical Center , Peking University People's Hospital , Beijing , China
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23
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Katzorke N, Vilella F, Ruiz M, Krüssel JS, Simón C. Diagnosis of Endometrial-Factor Infertility: Current Approaches and New Avenues for Research. Geburtshilfe Frauenheilkd 2016; 76:699-703. [PMID: 27365540 PMCID: PMC4922892 DOI: 10.1055/s-0042-103752] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/21/2016] [Accepted: 02/23/2016] [Indexed: 02/04/2023] Open
Abstract
Over the last decade, research to improve success rates in reproductive medicine has focused predominantly on the understanding and optimization of embryo quality. However, the emergence of personalized medicine in ovulation induction and embryology has shifted the focus to assessing the individual status of the endometrium. The endometrium is considered receptive during an individually defined period, the window of implantation (WOI), when the mother permits a blastocyst to attach and implant. This individual receptivity status can now be objectively diagnosed using the endometrial receptivity array (ERA) developed in 2011. The ERA, together with a computational algorithm, detects the unique transcriptomic signature of endometrial receptivity by analyzing 238 differentially expressed genes and reliably predicting the WOI. We and others have illustrated the utility of this personalized diagnostic approach to discriminate between individual physiological variation in endometrial receptivity and unknown endometrial pathology, deemed as causal in recurrent implantation failure (RIF). An international randomized controlled trial ("The ERA as a diagnostic guide for personalized embryo transfer." ClinicalTrials.gov Identifier: NCT01954758) is underway to determine the clinical value of this endometrial diagnostic intervention in the work-up for reproductive care. In this review, we analyse the current clinical practice in the diagnosis of the endometrial factor together with new avenues of research.
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Affiliation(s)
- N. Katzorke
- Fundación Instituto Valenciano de Infertilidad, Department of Obstetrics and Gynecology, Valencia University and Instituto Universitario IVI/INCLIVA, Valencia University, Valencia, Spain
- Department of Obstetrics and Gynecology, Heinrich Heine University Medical Center, Düsseldorf, Germany
| | - F. Vilella
- Fundación Instituto Valenciano de Infertilidad, Department of Obstetrics and Gynecology, Valencia University and Instituto Universitario IVI/INCLIVA, Valencia University, Valencia, Spain
| | - M. Ruiz
- Fundación Instituto Valenciano de Infertilidad, Department of Obstetrics and Gynecology, Valencia University and Instituto Universitario IVI/INCLIVA, Valencia University, Valencia, Spain
| | - J.-S. Krüssel
- Department of Obstetrics and Gynecology, Heinrich Heine University Medical Center, Düsseldorf, Germany
| | - C. Simón
- Fundación Instituto Valenciano de Infertilidad, Department of Obstetrics and Gynecology, Valencia University and Instituto Universitario IVI/INCLIVA, Valencia University, Valencia, Spain
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford University, Stanford, California, United States of America
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24
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Cuevas CA, Tapia-Pizarro A, Salvatierra AM, Munroe DJ, Velasquez L, Croxatto HB. Effect of single post-ovulatory administration of mifepristone (RU486) on transcript profile during the receptive period in human endometrium. Reproduction 2016; 151:331-49. [DOI: 10.1530/rep-15-0458] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/11/2016] [Indexed: 12/24/2022]
Abstract
Progesterone regulates uterine function during the luteal phase and is essential for the acquisition of endometrial receptivity. The objective of the present study was to identify endometrial transcripts whose expression is altered during the window of implantation after the administration of 200 mg of the antiprogestin mifepristone, 48 h after the LH peak (LH+2, LH+0=LH peak), and to determine the relationship of these transcripts with those regulated during the acquisition of receptivity. Endometrial samples were obtained in LH+7 from seven women of proven fertility, each one contributing with one cycle treated with placebo and another with mifepristone. Additionally, endometrial samples were obtained in LH+2 and LH+7 during a single untreated spontaneous cycle from seven normal fertile women as a reference. DNA microarrays were used to identify transcripts significantly regulated (defined as ≥2.0-fold change with false discovery rate below 1% usingt-test) with the administration of mifepristone vs placebo, or during the transition from pre-receptive to receptive (LH+2 vs LH+7). Approximately 2000 transcripts were significantly regulated in both comparisons (mifepristone vs placebo and LH+2 vs LH+7), but only 777 of them were coincident and displayed opposite regulation except for 25. The mRNA level for eight selected genes regulated by mifepristone was confirmed by real-time RT-PCR. We conclude that not all changes in endometrial transcript levels occurring in the transition from LH+2 to LH+7 seem to be regulated by the progesterone receptor and ∼37% of the genes whose transcript levels changed by effect of mifepristone could be associated with the acquisition of receptivity.
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25
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Altmäe S, Tamm-Rosenstein K, Esteban FJ, Simm J, Kolberg L, Peterson H, Metsis M, Haldre K, Horcajadas JA, Salumets A, Stavreus-Evers A. Endometrial transcriptome analysis indicates superiority of natural over artificial cycles in recurrent implantation failure patients undergoing frozen embryo transfer. Reprod Biomed Online 2016; 32:597-613. [PMID: 27090967 DOI: 10.1016/j.rbmo.2016.03.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/14/2016] [Accepted: 03/15/2016] [Indexed: 11/28/2022]
Abstract
Little consensus has been reached on the best protocol for endometrial preparation for frozen embryo transfer (FET). It is not known how, and to what extent, hormone supplementation in artificial cycles influences endometrial preparation for embryo implantation at a molecular level, especially in patients who have experienced recurrent implantation failure. Transcriptome analysis of 15 endometrial biopsy samples at the time of embryo implantation was used to compare two different endometrial preparation protocols, natural versus artificial cycles, for FET in women who have experienced recurrent implantation failure compared with fertile women. IPA and DAVID were used for functional analyses of differentially expressed genes. The TRANSFAC database was used to identify oestrogen and progesterone response elements upstream of differentially expressed genes. Cluster analysis demonstrated that natural cycles are associated with a better endometrial receptivity transcriptome than artificial cycles. Artificial cycles seemed to have a stronger negative effect on expression of genes and pathways crucial for endometrial receptivity, including ESR2, FSHR, LEP, and several interleukins and matrix metalloproteinases. Significant overrepresentation of oestrogen response elements among the genes with deteriorated expression in artificial cycles (P < 0.001) was found; progesterone response elements predominated in genes with amended expression with artificial cycles (P = 0.0052).
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Affiliation(s)
- Signe Altmäe
- Competence Centre on Health Technologies, Tartu, Estonia; Department of Paediatrics, School of Medicine, University of Granada, Granada, Spain.
| | | | | | - Jaak Simm
- Department of Gene Technology, Tallinn University of Technology, Tallinn, Estonia
| | - Liis Kolberg
- Institute of Computer Science, University of Tartu, Estonia
| | - Hedi Peterson
- Institute of Computer Science, University of Tartu, Estonia; Quretec Ltd., Tartu, Estonia
| | - Madis Metsis
- Competence Centre on Health Technologies, Tartu, Estonia; School of Natural Sciences and Health, Tallinn University, Tallinn, Estonia
| | - Kai Haldre
- Centre for Reproductive Medicine, West Tallinn Central Hospital Women's Clinic, Tallinn, Estonia
| | | | - Andres Salumets
- Competence Centre on Health Technologies, Tartu, Estonia; Department of Obstetrics and Gynaecology, University of Tartu, Tartu, Estonia
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Li R, Diao H, Zhao F, Xiao S, El Zowalaty AE, Dudley EA, Mattson MP, Ye X. Olfactomedin 1 Deficiency Leads to Defective Olfaction and Impaired Female Fertility. Endocrinology 2015; 156:3344-57. [PMID: 26107991 PMCID: PMC4541623 DOI: 10.1210/en.2015-1389] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Olfactomedin 1 (OLFM1) is a glycoprotein highly expressed in the brain. Olfm1(-/-) female mice were previously reported to have reduced fertility. Previous microarray analysis revealed Olfm1 among the most highly upregulated genes in the uterine luminal epithelium upon embryo implantation, which was confirmed by in situ hybridization. We hypothesized that Olfm1 deficiency led to defective embryo implantation and thus impaired fertility. Indeed, Olfm1(-/-) females had defective embryo implantation. However, Olfm1(-/-) females rarely mated and those that mated rarely became pregnant. Ovarian histology indicated the absence of corpora lutea in Olfm1(-/-) females, indicating defective ovulation. Superovulation using equine chorionic gonadotropin-human chorionic gonadotropin rescued mating, ovulation, and pregnancy, and equine chorionic gonadotropin alone rescued ovulation in Olfm1(-/-) females. Olfm1(-/-) females had a 13% reduction of hypothalamic GnRH neurons but comparable basal serum LH levels and GnRH-induced LH levels compared with wild-type controls. These results indicated no obvious local defects in the female reproductive system and a functional hypothalamic-pituitary-gonadal axis. Olfm1(-/-) females were unresponsive to the effects of male bedding stimulation on pubertal development and estrous cycle. There were 41% fewer cFos-positive cells in the mitral cell layer of accessory olfactory bulb upon male urine stimulation for 90 minutes. OLFM1 was expressed in the main and accessory olfactory systems including main olfactory epithelium, vomeronasal organ, main olfactory bulb, and accessory olfactory bulb, with the highest expression detected in the axon bundles of olfactory sensory neurons. These data demonstrate that defective fertility in Olfm1(-/-) females is most likely a secondary effect of defective olfaction.
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Affiliation(s)
- Rong Li
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Honglu Diao
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Fei Zhao
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Shuo Xiao
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Ahmed E El Zowalaty
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Elizabeth A Dudley
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Mark P Mattson
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
| | - Xiaoqin Ye
- Department of Physiology and Pharmacology (R.L., H.D., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), College of Veterinary Medicine, and Interdisciplinary Toxicology Program (R.L., F.Z., S.X., A.E.E.Z., E.A.D., X.Y.), University of Georgia, Athens, Georgia 30602; and Laboratory of Neurosciences (M.P.M.), National Institute on Aging Intramural Research Program, Baltimore, Maryland 21224
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Tapia-Pizarro A, Figueroa P, Brito J, Marín JC, Munroe DJ, Croxatto HB. Endometrial gene expression reveals compromised progesterone signaling in women refractory to embryo implantation. Reprod Biol Endocrinol 2014; 12:92. [PMID: 25248672 PMCID: PMC4181418 DOI: 10.1186/1477-7827-12-92] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 09/17/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Endometrial function is essential for embryo implantation. The aim of this study was to analyze gene expression profiles from individual endometrial samples obtained from women with repeated implantation failure after IVF in oocyte donation programs. METHODS Seventeen volunteers were recruited: women who had previously participated as recipients in oocyte donation cycles and repeatedly exhibited implantation failure (Group A, study group, n = 5) or had at least one successful cycle (Group B, control group, n = 6) and spontaneously fertile women (Group C, normal fertility group, n = 6). An endometrial cycle was induced with exogenous estradiol (E2) and progesterone (P) and an endometrial sample was collected on the seventh day of P treatment. RESULTS Transcriptome analysis showed 82 genes with consistent differential gene expression when comparing A vs. B and A vs. C. One hundred transcripts differentially expressed in group A vs. B have been shown to be regulated by P, suggesting compromised P signaling in the endometrium. The P receptor (PR) mutation PROGINS was not detected in women from group A. Semi-quantitation of immunoreactive PRA/B, PRB and Sp1 (a transcription factor related to P signaling) in paraffin-embedded endometrial sections, did not show statistically significant differences amongst groups. However immunostaining glycodelin was significantly decreased in endometrial samples from group A. CONCLUSIONS We conclude that some cases of repeated implantation failure could be associated with an aberrant gene expression profile. Compromised P signaling might be the underlying mechanism for such endometrial gene expression deregulation in women with repeated implantation failure.
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Affiliation(s)
- Alejandro Tapia-Pizarro
- />Instituto de Investigaciones Materno Infantil, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Paula Figueroa
- />Facultad de Medicina, Universidad Mayor, Santiago, Chile
| | - Julio Brito
- />Facultad de Medicina, Universidad Mayor, Santiago, Chile
| | | | - David J Munroe
- />Advanced Technology Program, SAIC-Frederick, Inc., National Cancer Institute-Frederick, Frederick, MD 21701 USA
| | - Horacio B Croxatto
- />Center for Integrative Medicine and Innovative Sciences, Universidad Andrés Bello, Santiago, Chile
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Zhu H, Hou CC, Luo LF, Hu YJ, Yang WX. Endometrial stromal cells and decidualized stromal cells: origins, transformation and functions. Gene 2014; 551:1-14. [PMID: 25168894 DOI: 10.1016/j.gene.2014.08.047] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 07/24/2014] [Accepted: 08/24/2014] [Indexed: 10/24/2022]
Abstract
Decidualization of endometrium, which is characterized by endometrial stromal cell (ESC) decidualization, vascular reconstruction, immune cell recruitment, and plentiful molecule production, is a crucial step for uterus to become receptive for embryo. When implantation takes place, ESCs surround and directly interact with embryo. Decidualized stromal cells (DSCs) are of great importance in endometrial decidualization, having a broad function in regulating immune activity and vascular remodeling of uterus. DSCs are shown to have a higher metabolic level and looser cytoskeleton than ESCs. What's the origin of ESCs and how ESCs successfully transform into DSCs had puzzled scientists in the last decades. Breakthrough had been achieved recently, and many studies had elucidated some of the characters and functions of DSCs. However, several questions still remain unclear. This paper reviews current understanding of where ESCs come from and how ESCs differentiate into DSCs, summarizes some characters and functions of DSCs, analyzes current studies and their limitations and points out research areas that need further investigation.
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Affiliation(s)
- Ha Zhu
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Cong-Cong Hou
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ling-Feng Luo
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan-Jun Hu
- Department of Reproductive Endocrinology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
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Potier D, Seyres D, Guichard C, Iche-Torres M, Aerts S, Herrmann C, Perrin L. Identification of cis-regulatory modules encoding temporal dynamics during development. BMC Genomics 2014; 15:534. [PMID: 24972496 PMCID: PMC4097164 DOI: 10.1186/1471-2164-15-534] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 06/13/2014] [Indexed: 12/02/2022] Open
Abstract
Background Developmental transcriptional regulatory networks are circuits of transcription factors (TFs) and cis-acting DNA elements (Cis Regulatory Modules, CRMs) that dynamically control expression of downstream genes. Comprehensive knowledge of these networks is an essential step towards our understanding of developmental processes. However, this knowledge is mostly based on genome-wide mapping of transcription factor binding sites, and therefore requires prior knowledge regarding the TFs involved in the network. Results Focusing on how temporal control of gene expression is integrated within a developmental network, we applied an in silico approach to discover regulatory motifs and CRMs of co-expressed genes, with no prior knowledge about the involved TFs. Our aim was to identify regulatory motifs and potential trans-acting factors which regulate the temporal expression of co-expressed gene sets during a particular process of organogenesis, namely adult heart formation in Drosophila. Starting from whole genome tissue specific expression dynamics, we used an in silico method, cisTargetX, to predict TF binding motifs and CRMs. Potential Nuclear Receptor (NR) binding motifs were predicted to control the temporal expression profile of a gene set with increased expression levels during mid metamorphosis. The predicted CRMs and NR motifs were validated in vivo by reporter gene essays. In addition, we provide evidence that three NRs modulate CRM activity and behave as temporal regulators of target enhancers. Conclusions Our approach was successful in identifying CRMs and potential TFs acting on the temporal regulation of target genes. In addition, our results suggest a modular architecture of the regulatory machinery, in which the temporal and spatial regulation can be uncoupled and encoded by distinct CRMs. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-534) contains supplementary material, which is available to authorized users.
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Hannan NJ, Evans J, Salamonsen LA. Alternate roles for immune regulators: establishing endometrial receptivity for implantation. Expert Rev Clin Immunol 2014; 7:789-802. [DOI: 10.1586/eci.11.65] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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31
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Altmäe S, Esteban FJ, Stavreus-Evers A, Simón C, Giudice L, Lessey BA, Horcajadas JA, Macklon NS, D'Hooghe T, Campoy C, Fauser BC, Salamonsen LA, Salumets A. Guidelines for the design, analysis and interpretation of 'omics' data: focus on human endometrium. Hum Reprod Update 2014; 20:12-28. [PMID: 24082038 PMCID: PMC3845681 DOI: 10.1093/humupd/dmt048] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 08/04/2013] [Accepted: 08/19/2013] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND 'Omics' high-throughput analyses, including genomics, epigenomics, transcriptomics, proteomics and metabolomics, are widely applied in human endometrial studies. Analysis of endometrial transcriptome patterns in physiological and pathophysiological conditions has been to date the most commonly applied 'omics' technique in human endometrium. As the technologies improve, proteomics holds the next big promise for this field. The 'omics' technologies have undoubtedly advanced our knowledge of human endometrium in relation to fertility and different diseases. Nevertheless, the challenges arising from the vast amount of data generated and the broad variation of 'omics' profiling according to different environments and stimuli make it difficult to assess the validity, reproducibility and interpretation of such 'omics' data. With the expansion of 'omics' analyses in the study of the endometrium, there is a growing need to develop guidelines for the design of studies, and the analysis and interpretation of 'omics' data. METHODS Systematic review of the literature in PubMed, and references from relevant articles were investigated up to March 2013. RESULTS The current review aims to provide guidelines for future 'omics' studies on human endometrium, together with a summary of the status and trends, promise and shortcomings in the high-throughput technologies. In addition, the approaches presented here can be adapted to other areas of high-throughput 'omics' studies. CONCLUSION A highly rigorous approach to future studies, based on the guidelines provided here, is a prerequisite for obtaining data on biological systems which can be shared among researchers worldwide and will ultimately be of clinical benefit.
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Affiliation(s)
- Signe Altmäe
- Competence Centre on Reproductive Medicine and Biology, Tartu, Estonia
- School of Medicine, Department of Paediatrics, University of Granada, 18012 Granada, Spain
| | | | - Anneli Stavreus-Evers
- Department of Women's and Children's Health, Uppsala University, Akademiska Sjukhuset, 75185 Uppsala, Sweden
| | - Carlos Simón
- Fundación Instituto Valenciano de Infertilidad (FIVI) and Instituto Universitario IVI/INCLIVA, Valencia University, 46021 Valencia, Spain
| | - Linda Giudice
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143-0132, USA
| | - Bruce A. Lessey
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University Medical Group, Greenville Hospital System, Greenville, South Carolina, SC 29605, USA
| | - Jose A. Horcajadas
- Araid-Hospital Miguel Servet, 50004 Zaragoza, Spain
- Department of Genetics, Universidad Pablo de Olavide, 41013 Sevilla, Spain
| | - Nick S. Macklon
- Department of Obstetrics and Gynaecology, Division of Developmental Origins of Adult Disease, University of Southampton, Princess Anne Hospital, SO16 5YA Southampton, UK
- Department of Reproductive Medicine and Gynaecology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Thomas D'Hooghe
- Leuven University Fertility Center, Department of Obstetrics and Gynecology, University Hospital Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven (Leuven University), 3000 Leuven, Belgium
| | - Cristina Campoy
- School of Medicine, Department of Paediatrics, University of Granada, 18012 Granada, Spain
| | - Bart C. Fauser
- Department of Reproductive Medicine and Gynaecology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Lois A. Salamonsen
- Prince Henry's Institute of Medical Research, Melbourne, Victoria 3168, Australia
| | - Andres Salumets
- Competence Centre on Reproductive Medicine and Biology, Tartu, Estonia
- Department of Obstetrics and Gynaecology, University of Tartu, 51014 Tartu, Estonia
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Biase FH, Rabel C, Guillomot M, Sandra O, Andropolis K, Olmstead C, Oliveira R, Wallace R, Le Bourhis D, Richard C, Campion E, Chaulot-Talmon A, Giraud-Delville C, Taghouti G, Jammes H, Hue I, Renard JP, Lewin HA. Changes in WNT signaling-related gene expression associated with development and cloning in bovine extra-embryonic and endometrial tissues during the peri-implantation period. Mol Reprod Dev 2013; 80:977-87. [DOI: 10.1002/mrd.22257] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 08/20/2013] [Indexed: 02/05/2023]
Affiliation(s)
- Fernando H. Biase
- Institute for Genomic Biology; University of Illinois at Urbana-Champaign; Urbana Illinois
| | - Chanaka Rabel
- Department of Animal Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois
| | - Michel Guillomot
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | - Olivier Sandra
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | - Kalista Andropolis
- Department of Animal Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois
| | - Colleen Olmstead
- Department of Animal Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois
| | - Rosane Oliveira
- Department of Animal Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois
| | - Richard Wallace
- Department of Animal Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois
| | - Daniel Le Bourhis
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
- ENVA; Maisons Alfort France
| | - Christophe Richard
- INRA; UE1298 Unité Commune d'Expérimentation Animale de Bressonvilliers; Leudeville France
| | - Evelyne Campion
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | | | | | - Géraldine Taghouti
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | - Hélène Jammes
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | - Isabelle Hue
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | - Jean Paul Renard
- INRA; UMR1198 Biologie du Développement et Reproduction; Jouy-en-Josas France
| | - Harris A. Lewin
- Institute for Genomic Biology; University of Illinois at Urbana-Champaign; Urbana Illinois
- Department of Animal Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois
- Department of Evolution and Ecology and The Genome Center; University of California; Davis, Davis California
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Yip KS, Suvorov A, Connerney J, Lodato NJ, Waxman DJ. Changes in mouse uterine transcriptome in estrus and proestrus. Biol Reprod 2013; 89:13. [PMID: 23740946 DOI: 10.1095/biolreprod.112.107334] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Changes in the CD-1 mouse uterine transcriptome during proestrus and estrus were investigated to help elucidate mechanisms of uterine tissue remodeling during the estrus cycle and their regulation by estrogen and progesterone in preparation of the uterus for pregnancy. Mice were staged beginning at 6 weeks of age, and uterine horns were harvested after monitoring two estrus cycles. Microarray analysis of whole uterine horn RNA identified 2428 genes differentially expressed in estrus compared to proestrus, indicating there is extensive remodeling of mouse uterus during the estrus cycle, affecting ~10% of all protein-encoding genes. Many (~50%) of these genes showed the same differential expression in independent analyses of isolated uterine lumenal epithelial cells. Changes in gene expression associated with structural alterations of the uterus included remodeling of the extracellular matrix, changes in cell keratins and adhesion molecules, activation of mitosis and changes in major histocompatibility complex class II (MHCII) presentation, complement and coagulation cascades, and cytochrome P450 expression. Signaling pathways regulated during the estrus cycle, involving ligand-gated channels, Wnt and hedgehog signaling, and transcription factors with poorly understood roles in reproductive tissues, included several genes and gene networks that have been implicated in pathological states. Many of the molecular pathways and biological functions represented by the genes differentially expressed from proestrus to estrus are also altered during the human menstrual cycle, although not necessarily at the corresponding phases of the cycle. These findings establish a baseline for further studies in the mouse model to dissect mechanisms involved in uterine tissue response to endocrine disruptors and the development of reproductive tract diseases.
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Affiliation(s)
- Kerri Stanley Yip
- Division of Cell and Molecular Biology, Department of Biology, Boston University, Boston, MA 02215, USA
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Vaiman D, Calicchio R, Miralles F. Landscape of transcriptional deregulations in the preeclamptic placenta. PLoS One 2013; 8:e65498. [PMID: 23785430 PMCID: PMC3681798 DOI: 10.1371/journal.pone.0065498] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/26/2013] [Indexed: 02/06/2023] Open
Abstract
Preeclampsia is a pregnancy disease affecting 5 to 8% of pregnant women and a leading cause of both maternal and fetal mortality and morbidity. Because of a default in the process of implantation, the placenta of preeclamptic women undergoes insufficient vascularization. This results in placental ischemia, inflammation and subsequent release of placental debris and vasoactive factors in the maternal circulation causing a systemic endothelial activation. Several microarray studies have analyzed the transcriptome of the preeclamptic placentas to identify genes which could be involved in placental dysfunction. In this study, we compared the data from publicly available microarray analyses to obtain a consensus list of modified genes. This allowed to identify consistently modified genes in the preeclamptic placenta. Of these, 67 were up-regulated and 31 down-regulated. Assuming that changes in the transcription level of co-expressed genes may result from the coordinated action of a limited number of transcription factors, we looked for over-represented putative transcription factor binding sites in the promoters of these genes. Indeed, we found that the promoters of up-regulated genes are enriched in putative binding sites for NFkB, CREB, ANRT, REEB1, SP1, and AP-2. In the promoters of down-regulated genes, the most prevalent putative binding sites are those of MZF-1, NFYA, E2F1 and MEF2A. These transcriptions factors are known to regulate specific biological pathways such as cell responses to inflammation, hypoxia, DNA damage and proliferation. We discuss here the molecular mechanisms of action of these transcription factors and how they can be related to the placental dysfunction in the context of preeclampsia.
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Affiliation(s)
- Daniel Vaiman
- INSERM U1016-CNRS UMR8104, Université Paris Descartes, Institut Cochin, Paris, France
| | - Rosamaria Calicchio
- INSERM U1016-CNRS UMR8104, Université Paris Descartes, Institut Cochin, Paris, France
| | - Francisco Miralles
- INSERM U1016-CNRS UMR8104, Université Paris Descartes, Institut Cochin, Paris, France
- * E-mail:
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Bhagwat SR, Chandrashekar DS, Kakar R, Davuluri S, Bajpai AK, Nayak S, Bhutada S, Acharya K, Sachdeva G. Endometrial receptivity: a revisit to functional genomics studies on human endometrium and creation of HGEx-ERdb. PLoS One 2013; 8:e58419. [PMID: 23555582 PMCID: PMC3608645 DOI: 10.1371/journal.pone.0058419] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 02/05/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Endometrium acquires structural and functional competence for embryo implantation only during the receptive phase of menstrual cycle in fertile women. Sizeable data are available to indicate that this ability is acquired by modulation in the expression of several genes/gene products. However, there exists little consensus on the identity, number of expressed/not-detected genes and their pattern of expression (up or down regulation). METHODS Literature search was carried out to retrieve the data on endometrial expression of genes/proteins in various conditions. Data were compiled to generate a comprehensive database, Human Gene Expression Endometrial Receptivity database (HGEx-ERdb). The database was used to identify the Receptivity Associated Genes (RAGs) which display the similar pattern of expression across different investigations. Transcript levels of select RAGs encoding cell adhesion proteins were compared between two human endometrial epithelial cell lines; RL95-2 and HEC-1-A by quantitative real time polymerase chain reaction (q-RT-PCR). Further select RAGs were investigated for their expression in pre-receptive (n = 4) and receptive phase (n = 4) human endometrial tissues by immunohistochemical studies. JAr spheroid attachment assays were carried out to assess the functional significance of two RAGs. RESULTS HGEx-ERdb (http://resource.ibab.ac.in/HGEx-ERdb/) helped identification of 179 RAGs, of which 151 genes were consistently expressed and upregulated and 28 consistently not-detected and downregulated in receptive phase as compared to pre-receptive phase. q-RT-PCR confirmed significantly higher (p<0.005) expression of Thrombospondin1 (THBS1), CD36 and Mucin 16 transcripts, in RL95-2 as compared to HEC-1-A. Further, the pretreatment with antibodies against CD36 and COMP led to a reduction in the percentage of JAr spheroids attached to RL95-2. Immunohistochemical studies demonstrated significantly higher (p<0.05) expression of endometrial THBS1, Cartilage Oligomeric Matrix Protein (COMP) and CD36 in the receptive phase as compared to pre-receptive phase human endometrial tissues. CONCLUSION HGEx-ERdb is a catalogue of 19,285 genes, reported for their expression in human endometrium. Further 179 genes were identified as the RAGs. Expression analysis of some RAGs validated the utility of approach employed in creation of HGEx-ERdb. Studies aimed towards defining the specific functions of RAGs and their potential networks may yield relevant information about the major 'nodes' which regulate endometrial receptivity.
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Affiliation(s)
- Sonali R. Bhagwat
- Primate Biology Department, National Institute for Research in Reproductive Health, Mumbai, Maharashtra, India
| | | | - Ruchi Kakar
- Primate Biology Department, National Institute for Research in Reproductive Health, Mumbai, Maharashtra, India
| | - Sravanthi Davuluri
- Institute of Bioinformatics and Applied Biotechnology, Bangalore, Karnataka, India
| | - Akhilesh K. Bajpai
- Institute of Bioinformatics and Applied Biotechnology, Bangalore, Karnataka, India
| | - Sumeet Nayak
- Primate Biology Department, National Institute for Research in Reproductive Health, Mumbai, Maharashtra, India
| | - Sumit Bhutada
- Primate Biology Department, National Institute for Research in Reproductive Health, Mumbai, Maharashtra, India
| | - Kshitish Acharya
- Institute of Bioinformatics and Applied Biotechnology, Bangalore, Karnataka, India
| | - Geetanjali Sachdeva
- Primate Biology Department, National Institute for Research in Reproductive Health, Mumbai, Maharashtra, India
- * E-mail:
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Current World Literature. Curr Opin Obstet Gynecol 2012; 24:265-72. [DOI: 10.1097/gco.0b013e3283564f02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gene regulatory network inference: evaluation and application to ovarian cancer allows the prioritization of drug targets. Genome Med 2012; 4:41. [PMID: 22548828 PMCID: PMC3506907 DOI: 10.1186/gm340] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 02/22/2012] [Accepted: 05/01/2012] [Indexed: 12/15/2022] Open
Abstract
Background Altered networks of gene regulation underlie many complex conditions, including cancer. Inferring gene regulatory networks from high-throughput microarray expression data is a fundamental but challenging task in computational systems biology and its translation to genomic medicine. Although diverse computational and statistical approaches have been brought to bear on the gene regulatory network inference problem, their relative strengths and disadvantages remain poorly understood, largely because comparative analyses usually consider only small subsets of methods, use only synthetic data, and/or fail to adopt a common measure of inference quality. Methods We report a comprehensive comparative evaluation of nine state-of-the art gene regulatory network inference methods encompassing the main algorithmic approaches (mutual information, correlation, partial correlation, random forests, support vector machines) using 38 simulated datasets and empirical serous papillary ovarian adenocarcinoma expression-microarray data. We then apply the best-performing method to infer normal and cancer networks. We assess the druggability of the proteins encoded by our predicted target genes using the CancerResource and PharmGKB webtools and databases. Results We observe large differences in the accuracy with which these methods predict the underlying gene regulatory network depending on features of the data, network size, topology, experiment type, and parameter settings. Applying the best-performing method (the supervised method SIRENE) to the serous papillary ovarian adenocarcinoma dataset, we infer and rank regulatory interactions, some previously reported and others novel. For selected novel interactions we propose testable mechanistic models linking gene regulation to cancer. Using network analysis and visualization, we uncover cross-regulation of angiogenesis-specific genes through three key transcription factors in normal and cancer conditions. Druggabilty analysis of proteins encoded by the 10 highest-confidence target genes, and by 15 genes with differential regulation in normal and cancer conditions, reveals 75% to be potential drug targets. Conclusions Our study represents a concrete application of gene regulatory network inference to ovarian cancer, demonstrating the complete cycle of computational systems biology research, from genome-scale data analysis via network inference, evaluation of methods, to the generation of novel testable hypotheses, their prioritization for experimental validation, and discovery of potential drug targets.
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Bauersachs S, Ulbrich SE, Reichenbach HD, Reichenbach M, Büttner M, Meyer HH, Spencer TE, Minten M, Sax G, Winter G, Wolf E. Comparison of the Effects of Early Pregnancy with Human Interferon, Alpha 2 (IFNA2), on Gene Expression in Bovine Endometrium1. Biol Reprod 2012; 86:46. [DOI: 10.1095/biolreprod.111.094771] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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