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Kobayashi S, Sata F, Kishi R. Gene-environment interactions related to maternal exposure to environmental and lifestyle-related chemicals during pregnancy and the resulting adverse fetal growth: a review. Environ Health Prev Med 2022; 27:24. [PMID: 35675978 PMCID: PMC9251623 DOI: 10.1265/ehpm.21-00033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background There are only limited numbers of reviews on the association of maternal-child genetic polymorphisms and environmental and lifestyle-related chemical exposure during pregnancy with adverse fetal growth. Thus, this article aims to review: (1) the effect of associations between the above highlighted factors on adverse fetal growth and (2) recent birth cohort studies regarding environmental health risks. Methods Based on a search of the PubMed database through August 2021, 68 epidemiological studies on gene-environment interactions, focusing on the association between environmental and lifestyle-related chemical exposure and adverse fetal growth was identified. Moreover, we also reviewed recent worldwide birth cohort studies regarding environmental health risks. Results Thirty studies examined gene-smoking associations with adverse fetal growth. Sixteen maternal genes significantly modified the association between maternal smoking and adverse fetal growth. Two genes significantly related with this association were detected in infants. Moreover, the maternal genes that significantly interacted with maternal smoking during pregnancy were cytochrome P450 1A1 (CYP1A1), X-ray repair cross-complementing protein 3 (XRCC3), interleukin 6 (IL6), interleukin 1 beta (IL1B), human leukocyte antigen (HLA) DQ alpha 1 (HLA-DQA1), HLA DQ beta 1 (HLA-DQB1), and nicotinic acetylcholine receptor. Fetal genes that had significant interactions with maternal smoking during pregnancy were glutathione S-transferase theta 1 (GSTT1) and fat mass and obesity-associated protein (FTO). Thirty-eight studies examined the association between chemical exposures and adverse fetal growth. In 62 of the 68 epidemiological studies (91.2%), a significant association was found with adverse fetal growth. Across the studies, there was a wide variation in the analytical methods used, especially with respect to the genetic polymorphisms of interest, environmental and lifestyle-related chemicals examined, and the study design used to estimate the gene-environment interactions. It was also found that a consistently increasing number of European and worldwide large-scale birth cohort studies on environmental health risks have been conducted since approximately 1996. Conclusion There is some evidence to suggest the importance of gene-environment interactions on adverse fetal growth. The current knowledge on gene-environment interactions will help guide future studies on the combined effects of maternal-child genetic polymorphisms and exposure to environmental and lifestyle-related chemicals during pregnancy. Supplementary information The online version contains supplementary material available at https://doi.org/10.1265/ehpm.21-00033.
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Affiliation(s)
| | - Fumihiro Sata
- Center for Environmental and Health Sciences, Hokkaido University.,Health Center, Chuo University
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University
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Ji X, Yue H, Li G, Sang N. Maternal smoking-induced lung injuries in dams and offspring via inflammatory cytokines. ENVIRONMENT INTERNATIONAL 2021; 156:106618. [PMID: 33989842 DOI: 10.1016/j.envint.2021.106618] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/10/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Maternal smoking during pregnancy can induce permanent changes in neonatal inflammation, which will result in lifelong implications. An original study of data from GSE96978, composed of 2 subseries (GSE96976 and GSE96977), investigated genome-wide changes in ELT cells, the lungs of mouse dams and their juvenile offspring and focused on finding an in vitro alternative as a human tissue-based replacement for the use of animals. Therefore, the study only analyzed the similarities of GO terms between ELT cells and dams. However, the relationship between differentially expressed genes (DEGs) in dams and offspring was not investigated. The present study aimed to identify the key molecules involved in maternal smoking-induced dam and offspring lung injuries. Data from GSE96977 were downloaded from Gene Expression Omnibus (GEO) data sets. In our study, differentially expressed genes (DEGs) in dams and offspring were reanalyzed using the limma package. The results of Gene Set Enrichment Analysis (GSEA) showed that the DEGs in the lungs of dams were significantly enriched in immune-related functions and those in the lungs of offspring were enriched in cell growth. Furthermore, a total of 90 DEGs shared in the dam and offspring datasets were screened out. In addition, most of these DEGs were enriched in cytokine and cytokine receptor interaction KEGG pathways. Furthermore, protein-protein interaction (PPI) network analysis screened out 4 core genes in cluster 1. In addition, the miRNAs related to these core genes were predicted, and mmu-miR-1903 was screened out. Taken together, our data indicate that inflammatory responses may play an important role in maternal smoking induced lung injuries in dams and offspring. Furthermore, mmu-miR-1903 is a potential epigenetic biomarker of lung inflammation in the offspring of dams who smoked during pregnancy. In conclusion, by screening shared differential genes, we only need to detect maternal genes to predict maternal smoking-induced lung injuries in offspring.
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Affiliation(s)
- Xiaotong Ji
- Department of Environmental Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, PR China
| | - Huifeng Yue
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, PR China.
| | - Guangke Li
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, PR China
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, PR China
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3
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Braveman P, Dominguez TP, Burke W, Dolan SM, Stevenson DK, Jackson FM, Collins JW, Driscoll DA, Haley T, Acker J, Shaw GM, McCabe ERB, Hay WW, Thornburg K, Acevedo-Garcia D, Cordero JF, Wise PH, Legaz G, Rashied-Henry K, Frost J, Verbiest S, Waddell L. Explaining the Black-White Disparity in Preterm Birth: A Consensus Statement From a Multi-Disciplinary Scientific Work Group Convened by the March of Dimes. FRONTIERS IN REPRODUCTIVE HEALTH 2021; 3:684207. [PMID: 36303973 PMCID: PMC9580804 DOI: 10.3389/frph.2021.684207] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 07/06/2021] [Indexed: 11/30/2022] Open
Abstract
In 2017-2019, the March of Dimes convened a workgroup with biomedical, clinical, and epidemiologic expertise to review knowledge of the causes of the persistent Black-White disparity in preterm birth (PTB). Multiple databases were searched to identify hypothesized causes examined in peer-reviewed literature, 33 hypothesized causes were reviewed for whether they plausibly affect PTB and either occur more/less frequently and/or have a larger/smaller effect size among Black women vs. White women. While definitive proof is lacking for most potential causes, most are biologically plausible. No single downstream or midstream factor explains the disparity or its social patterning, however, many likely play limited roles, e.g., while genetic factors likely contribute to PTB, they explain at most a small fraction of the disparity. Research links most hypothesized midstream causes, including socioeconomic factors and stress, with the disparity through their influence on the hypothesized downstream factors. Socioeconomic factors alone cannot explain the disparity's social patterning. Chronic stress could affect PTB through neuroendocrine and immune mechanisms leading to inflammation and immune dysfunction, stress could alter a woman's microbiota, immune response to infection, chronic disease risks, and behaviors, and trigger epigenetic changes influencing PTB risk. As an upstream factor, racism in multiple forms has repeatedly been linked with the plausible midstream/downstream factors, including socioeconomic disadvantage, stress, and toxic exposures. Racism is the only factor identified that directly or indirectly could explain the racial disparities in the plausible midstream/downstream causes and the observed social patterning. Historical and contemporary systemic racism can explain the racial disparities in socioeconomic opportunities that differentially expose African Americans to lifelong financial stress and associated health-harming conditions. Segregation places Black women in stressful surroundings and exposes them to environmental hazards. Race-based discriminatory treatment is a pervasive stressor for Black women of all socioeconomic levels, considering both incidents and the constant vigilance needed to prepare oneself for potential incidents. Racism is a highly plausible, major upstream contributor to the Black-White disparity in PTB through multiple pathways and biological mechanisms. While much is unknown, existing knowledge and core values (equity, justice) support addressing racism in efforts to eliminate the racial disparity in PTB.
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Affiliation(s)
- Paula Braveman
- School of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Tyan Parker Dominguez
- USC Suzanne Dworak-Peck School of Social Work, University of Southern California, Los Angeles, CA, United States
| | - Wylie Burke
- University of Washington School of Medicine, Seattle, WA, United States
| | - Siobhan M. Dolan
- Albert Einstein College of Medicine, New York, NY, United States
| | | | | | - James W. Collins
- Northwestern University School of Medicine, Chicago, IL, United States
| | - Deborah A. Driscoll
- University of Pennsylvania School of Medicine, Philadelphia, PA, United States
| | - Terinney Haley
- School of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Julia Acker
- School of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Gary M. Shaw
- Stanford University School of Medicine, Stanford, CA, United States
| | - Edward R. B. McCabe
- David Geffen School of Medicine at University of California, Los Angeles, CA, United States
| | | | - Kent Thornburg
- School of Medicine, Oregon State University, Portland, OR, United States
| | | | - José F. Cordero
- University of Georgia College of Public Health, Athens, GA, United States
| | - Paul H. Wise
- Stanford University School of Medicine, Stanford, CA, United States
| | - Gina Legaz
- March of Dimes, White Plains, NY, United States
| | | | | | - Sarah Verbiest
- University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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4
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Zhao N, Wu W, Feng Y, Yang F, Han T, Guo M, Ren Q, Li W, Li J, Wang S, Zhang Y. Polymorphisms in oxidative stress, metabolic detoxification, and immune function genes, maternal exposure to ambient air pollution, and risk of preterm birth in Taiyuan, China. ENVIRONMENTAL RESEARCH 2021; 194:110659. [PMID: 33359674 DOI: 10.1016/j.envres.2020.110659] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 12/06/2020] [Accepted: 12/20/2020] [Indexed: 05/27/2023]
Abstract
Exposure to air pollutants may be associated with preterm birth (PB) through oxidative stress, metabolic detoxification, and immune system processes. However, no study has investigated the interactive effects of maternal air pollution and genetic polymorphisms in these pathways on risk of PB. The study included 126 PB and 310 term births. A total of 177 single nucleotide polymorphisms (SNPs) in oxidative stress, immune function, and metabolic detoxification-related genes were examined and analyzed. The China air quality index (AQI) was used as an overall estimation of ambient air pollutants. Among 177 SNPs, four SNPs (GPX4-rs376102, GLRX-rs889224, VEGFA-rs3025039, and IL1A-rs3783550) were found to have significant interactions with AQI on the risk of PB (Pinteraction were 0.001, 0.003, 0.03, and 0.04, respectively). After being stratified by the maternal genotypes in these four SNPs, 1.38 to 1.76 times of the risk of PB were observed as per interquartile range increase in maternal AQI among women who carried the GPX4-rs376102 AC/CC genotypes, the GLRX-rs889224 TT genotype, the VEGFA-rs3025039 CC genotype, or the IL1A-rs3783550 GT/TT genotypes. After adjustment for multiple comparisons, only GPX4-rs376102 and AQI interaction remained statistically significant (false discovery rate (FDR)=0.17). After additional stratification by preeclampsia (PE) status, a strongest association was observed in women who carried the GPX4-rs376102 AC/CC genotypes (OR, 2.26; 95% CI, 1.41-3.65, Pinteraction=0.0002, FDR=0.035) in the PE group. Our study provided the first evidence that association between maternal air pollution and PB risk may be modified by the genetic polymorphisms in oxidative stress and immune function genes. Future large studies are necessary to replicate and confirm the observed associations.
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Affiliation(s)
- Nan Zhao
- Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
| | - Weiwei Wu
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yongliang Feng
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Feifei Yang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Tianbi Han
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Mengzhu Guo
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qingwen Ren
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Wangjun Li
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Jinbo Li
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Suping Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi, China.
| | - Yawei Zhang
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA; Section of Surgical Outcomes and Epidemiology, Department of Surgery, Yale School of Medicine, New Haven, CT, USA.
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5
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Harati-Sadegh M, Sargazi S, Taheri H, Arbabi N, Saravani R, Mirinejad S. Relationship between common interleukin 1-beta gene polymorphisms and the risk of gestational disorders: An updated meta-analysis. Med J Islam Repub Iran 2021; 35:25. [PMID: 34169037 PMCID: PMC8214042 DOI: 10.47176/mjiri.35.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Indexed: 11/09/2022] Open
Abstract
Background: To quantitatively estimate the relationship between IL-1β -511C>T, -31T>C, and +3954C>T polymorphisms and risk of gestational disorders. Methods: In this meta-analysis, eligible publications were searched in Web of Knowledge, MEDLINE, PubMed, Scopus, and Google Scholar databases (updated April 2020), using appropriate or relevant keywords. Case-control population-based reports were included if provided with genotypic frequencies of both studied groups. Statistical analyses were performed using the MetaGenyo web tool software, where a P value less than 0.05 indicated a significant association. For the assessment of between-study variations, heterogeneity analysis was applied with the I2 statistics. Results: A total of thirteen studies were included. We observed a significant association between IL-1β-31T>C polymorphism and reduced risk of gestational disorders under codominant CT vs. CC [OR= 0.74, CI (0.59-0.92)], and dominant CT+TT vs. CC [OR= 0.74, CI (0.60-0.91)] contrasted genetic models. The stratified analysis considering the disease type showed that the 511C>T variant, under the recessive CC vs. CT+TT model, enhanced the risk of preterm birth by 1.29 fold. Conclusion: Our results failed to support an association between two IL-1β polymorphisms, 511C>T and +3954C>T, with the overall risk of gestational disorders. In contrast, the 31T>C variant reduced the incidence of such diseases. Further studies are encouraged to get more precise estimates of effect sizes.
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Affiliation(s)
- Mahdiyeh Harati-Sadegh
- Genetic of Non-Communicable Disease Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Saman Sargazi
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamed Taheri
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Internal Medicine, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Narges Arbabi
- Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Ramin Saravani
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Shekoufeh Mirinejad
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
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6
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Mi K, Jiang Y, Chen J, Lv D, Qian Z, Sun H, Shang D. Construction and Analysis of Human Diseases and Metabolites Network. Front Bioeng Biotechnol 2020; 8:398. [PMID: 32426349 PMCID: PMC7203444 DOI: 10.3389/fbioe.2020.00398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 04/08/2020] [Indexed: 11/13/2022] Open
Abstract
The relationship between aberrant metabolism and the initiation and progression of diseases has gained considerable attention in recent years. To gain insights into the global relationship between diseases and metabolites, here we constructed a human diseases-metabolites network (HDMN). Through analyses based on network biology, the metabolites associated with the same disorder tend to participate in the same metabolic pathway or cascade. In addition, the shortest distance between disease-related metabolites was shorter than that of all metabolites in the Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic network. Both disease and metabolite nodes in the HDMN displayed slight clustering phenomenon, resulting in functional modules. Furthermore, a significant positive correlation was observed between the degree of metabolites and the proportion of disease-related metabolites in the KEGG metabolic network. We also found that the average degree of disease metabolites is larger than that of all metabolites. Depicting a comprehensive characteristic of HDMN could provide great insights into understanding the global relationship between disease and metabolites.
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Affiliation(s)
- Kai Mi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Yanan Jiang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.,Department of Pharmacology (State-Province Key Laboratories of Biomedicine - Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Jiaxin Chen
- School of Medical Informatics, Harbin Medical University, Daqing, China
| | - Dongxu Lv
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Zhipeng Qian
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Hui Sun
- Pharmaceutical Experiment Teaching Center, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Desi Shang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
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7
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Del Gobbo GF, Konwar C, Robinson WP. The significance of the placental genome and methylome in fetal and maternal health. Hum Genet 2019; 139:1183-1196. [PMID: 31555906 DOI: 10.1007/s00439-019-02058-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 08/29/2019] [Indexed: 01/15/2023]
Abstract
The placenta is a crucial organ for supporting a healthy pregnancy, and defective development or function of the placenta is implicated in a number of complications of pregnancy that affect both maternal and fetal health, including maternal preeclampsia, fetal growth restriction, and spontaneous preterm birth. In this review, we highlight the role of the placental genome in mediating fetal and maternal health by discussing the impact of a variety of genetic alterations, from large whole-chromosome aneuploidies to single-nucleotide variants, on placental development and function. We also discuss the placental methylome in relation to its potential applications for refining diagnosis, predicting pathology, and identifying genetic variants with potential functional significance. We conclude that understanding the influence of the placental genome on common placental-mediated pathologies is critical to improving perinatal health outcomes.
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Affiliation(s)
- Giulia F Del Gobbo
- BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Chaini Konwar
- BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, BC, V5Z 4H4, Canada.,Department of Medical Genetics, University of British Columbia, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Wendy P Robinson
- BC Children's Hospital Research Institute, 950 West 28th Ave, Vancouver, BC, V5Z 4H4, Canada. .,Department of Medical Genetics, University of British Columbia, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada.
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Pereyra S, Sosa C, Bertoni B, Sapiro R. Transcriptomic analysis of fetal membranes reveals pathways involved in preterm birth. BMC Med Genomics 2019; 12:53. [PMID: 30935390 PMCID: PMC6444860 DOI: 10.1186/s12920-019-0498-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 03/10/2019] [Indexed: 12/21/2022] Open
Abstract
Background Preterm birth (PTB), defined as infant delivery before 37 weeks of completed gestation, results from the interaction of both genetic and environmental components and constitutes a complex multifactorial syndrome. Transcriptome analysis of PTB has proven challenging because of the multiple causes of PTB and the numerous maternal and fetal gestational tissues that must interact to facilitate parturition. The transcriptome of the chorioamnion membranes at the site of rupture in PTB and term fetuses may reflect the molecular pathways of preterm labor. Methods In this work, chorioamnion membranes from severe preterm and term fetuses were analyzed using RNA sequencing. Functional annotations and pathway analysis of differentially expressed genes were performed with the GAGE and GOSeq packages. A subset of differentially expressed genes in PTB was validated in a larger cohort using qRT-PCR and by comparing our results with genes and pathways previously reported in the literature. Results A total of 270 genes were differentially expressed (DE): 252 were upregulated and 18 were down-regulated in severe preterm births relative to term births. Inflammatory and immunological pathways were upregulated in PTB. Both types of pathways were previously suggested to lead to PTB. Pathways that were not previously reported in PTB, such as the hemopoietic pathway, appeared upregulated in preterm membranes. A group of 18 downregulated genes discriminated between term and severe preterm cases. These genes potentially characterize a severe preterm transcriptome pattern and therefore are candidate genes for understanding the syndrome. Some of the downregulated genes are involved in the nervous system, morphogenesis (WNT1, DLX5, PAPPA2) and ion channel complexes (KCNJ16, KCNB1), making them good candidates as biomarkers of PTB. Conclusions The identification of this DE gene pattern will help with the development of a multi-gene disease classifier. These markers were generated in an admixed South American population in which PTB has a high incidence. Since the genetic background may differentially impact different populations, it is necessary to include populations such as those from South America and Africa, which are usually excluded from high-throughput approaches. These classifiers should be compared to those in other populations to obtain a global landscape of PTB. Electronic supplementary material The online version of this article (10.1186/s12920-019-0498-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Silvana Pereyra
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Av. General Flores 2125, C.P, 11800, Montevideo, Uruguay
| | - Claudio Sosa
- Clínica Ginecotologica "C", Centro Hospitalario Pereira Rossell, Facultad de Medicina, Universidad de la República, Bvar. General Artigas 1590, C:P.11600, Montevideo, Uruguay
| | - Bernardo Bertoni
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Av. General Flores 2125, C.P, 11800, Montevideo, Uruguay
| | - Rossana Sapiro
- Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Av. General Flores 2125, C.P, 11800, Montevideo, Uruguay.
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9
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Strauss JF, Romero R, Gomez-Lopez N, Haymond-Thornburg H, Modi BP, Teves ME, Pearson LN, York TP, Schenkein HA. Spontaneous preterm birth: advances toward the discovery of genetic predisposition. Am J Obstet Gynecol 2018; 218:294-314.e2. [PMID: 29248470 PMCID: PMC5834399 DOI: 10.1016/j.ajog.2017.12.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 02/08/2023]
Abstract
Evidence from family and twin-based studies provide strong support for a significant contribution of maternal and fetal genetics to the timing of parturition and spontaneous preterm birth. However, there has been only modest success in the discovery of genes predisposing to preterm birth, despite increasing sophistication of genetic and genomic technology. In contrast, DNA variants associated with other traits/diseases have been identified. For example, there is overwhelming evidence that suggests that the nature and intensity of an inflammatory response in adults and children are under genetic control. Because inflammation is often invoked as an etiologic factor in spontaneous preterm birth, the question of whether spontaneous preterm birth has a genetic predisposition in the case of pathologic inflammation has been of long-standing interest to investigators. Here, we review various genetic approaches used for the discovery of preterm birth genetic variants in the context of inflammation-associated spontaneous preterm birth. Candidate gene studies have sought genetic variants that regulate inflammation in the mother and fetus; however, the promising findings have often not been replicated. Genome-wide association studies, an approach to the identification of chromosomal loci responsible for complex traits, have also not yielded compelling evidence for DNA variants predisposing to preterm birth. A recent genome-wide association study that included a large number of White women (>40,000) revealed that maternal loci contribute to preterm birth. Although none of these loci harbored genes directly related to innate immunity, the results were replicated. Another approach to identify DNA variants predisposing to preterm birth is whole exome sequencing, which examines the DNA sequence of protein-coding regions of the genome. A recent whole exome sequencing study identified rare mutations in genes encoding for proteins involved in the negative regulation (dampening) of the innate immune response (eg, CARD6, CARD8, NLRP10, NLRP12, NOD2, TLR10) and antimicrobial peptide/proteins (eg, DEFB1, MBL2). These findings support the concept that preterm labor, at least in part, has an inflammatory etiology, which can be induced by pathogens (ie, intraamniotic infection) or "danger signals" (alarmins) released during cellular stress or necrosis (ie, sterile intraamniotic inflammation). These findings support the notion that preterm birth has a polygenic basis that involves rare mutations or damaging variants in multiple genes involved in innate immunity and host defense mechanisms against microbes and their noxious products. An overlap among the whole exome sequencing-identified genes and other inflammatory conditions associated with preterm birth, such as periodontal disease and inflammatory bowel disease, was observed, which suggests a shared genetic substrate for these conditions. We propose that whole exome sequencing, as well as whole genome sequencing, is the most promising approach for the identification of functionally significant genetic variants responsible for spontaneous preterm birth, at least in the context of pathologic inflammation. The identification of genes that contribute to preterm birth by whole exome sequencing, or whole genome sequencing, promises to yield valuable population-specific biomarkers to identify the risk for spontaneous preterm birth and potential strategies to mitigate such a risk.
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Affiliation(s)
- Jerome F Strauss
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA; Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA.
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute for Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI.
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute for Child Health and Human Development, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD and Detroit, MI; Department of Obstetrics and Gynecology and the Department of Immunology, Microbiology and Biochemistry, Wayne State University School of Medicine, Detroit, MI
| | - Hannah Haymond-Thornburg
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - Bhavi P Modi
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada
| | - Maria E Teves
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - Laurel N Pearson
- Department of Anthropology, Pennsylvania State University, University Park, PA
| | - Timothy P York
- Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, VA; Department of Human and Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA
| | - Harvey A Schenkein
- Department of Periodontics, Virginia Commonwealth University School of Dentistry, Richmond, VA
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Fatahi N, Niknafs N, Kalani M, Dalili H, Shariat M, Amini E, Esmaeilnia Shirvani T, Hardani AK, Taheritafti R, Ghasemi-Fakhr N, Ghadami M, Tavakkoly-Bazzaz J, Rashidi-Nezhad R, Nayeri F, Rashidi-Nezhad A. Association of SP-B gene 9306 A/G polymorphism (rs7316) and risk of RDS. J Matern Fetal Neonatal Med 2017; 31:2965-2970. [PMID: 28738720 DOI: 10.1080/14767058.2017.1359829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Respiratory distress syndrome (RDS) is a severe pulmonary disease predominantly affects preterm newborns. Polymorphisms of surfactant-protein genes have been mostly evaluated as the candidate contributors in genetics of RDS. However the results are divers in different studies. We aimed at investigating the association of surfactant protein B (SPB) gene 9306 A/G polymorphism (rs7316) with RDS development. METHOD Three hundred and eighty newborns with gestational age of less than 34 weeks were included in a multicenter case-control study. Respiratory distress (RD) was scored according to Downes' scoring system. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used for genotyping. RESULT One hundred and eighty-four neonates showed RDS and 196 did not. Gestational age (GA) was significantly lower in the RDS group compared with the controls. AA genotype and A allele were found more frequently in the RDS group than the controls (96.2% versus 63.8% and 98.1% versus 80.6%, respectively) (p =.0001). CONCLUSIONS This is the first report of association of SFTPB rs7316 polymorphism with RDS development in Iranian newborns. The current study suggests that GA <28-weeks is the most important factor in predisposition to RDS. Genetic background in terms of SP-B gene might be involved in predisposition to RDS in premature neonates.
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Affiliation(s)
- Neda Fatahi
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,b Ronash Medical Genetic Center , Tehran , Iran
| | - Nikoo Niknafs
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,c Breast feeding Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran
| | - Majid Kalani
- d Akbarabadi Hospital , Iran University of Medical Sciences , Tehran , Iran
| | - Hosein Dalili
- c Breast feeding Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran
| | - Mamak Shariat
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,c Breast feeding Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran
| | - Elaheh Amini
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,e Department of Pediatrics, Faculty of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Tahereh Esmaeilnia Shirvani
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,e Department of Pediatrics, Faculty of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Amir Kamal Hardani
- f Ahwaz Jundishapur University of Medical Sciences , School of Medicine , Ahwaz , Iran
| | - Roya Taheritafti
- g Department of Pediatrics, Faculty of Medicine , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Nasrin Ghasemi-Fakhr
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran
| | - Mohsen Ghadami
- h Department of Medical Genetics, Faculty of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Javad Tavakkoly-Bazzaz
- h Department of Medical Genetics, Faculty of Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | | | - Fatemeh Nayeri
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,c Breast feeding Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran
| | - Ali Rashidi-Nezhad
- a Maternal, Fetal and Neonatal Research Center , Imam Khomeini Hospital Complex, Tehran University of Medical Sciences , Tehran , Iran.,b Ronash Medical Genetic Center , Tehran , Iran
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Fatahi N, Dalili H, Kalani M, Niknafs N, Shariat M, Tavakkoly-Bazzaz J, Amini E, Esmaeilnia Shirvani T, Hardani AK, Taheritafti R, Ghasemi-Fakhr N, Ghadami M, Nayeri F, Rashidi-Nezhad A. Association of SP-C gene codon 186 polymorphism (rs1124) and risk of RDS. J Matern Fetal Neonatal Med 2016; 30:2585-2589. [DOI: 10.1080/14767058.2016.1256994] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Neda Fatahi
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Ronash Medical Genetic Center, Tehran, Iran,
| | - Hosein Dalili
- Breast feeding Research Center, Tehran University of Medical Sciences, Tehran, Iran,
| | - Majid Kalani
- Akbarabadi Hospital, Iran University of Medical Sciences, Tehran, Iran,
| | - Nikoo Niknafs
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Breast feeding Research Center, Tehran University of Medical Sciences, Tehran, Iran,
| | - Mamak Shariat
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Breast feeding Research Center, Tehran University of Medical Sciences, Tehran, Iran,
| | - Javad Tavakkoly-Bazzaz
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran,
| | - Elaheh Amini
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Department of Pediatrics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran,
| | - Tahereh Esmaeilnia Shirvani
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Department of Pediatrics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran,
| | - Amir kamal Hardani
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- School of Medicine, Ahwaz Jundishapur University of Medical Sciences, Ahwaz, Iran, and
| | - Roya Taheritafti
- Breast feeding Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Department of Pediatrics, Faculty of Medicine, Shahid Beheshti University of medical Sciences, Tehran, Iran
| | - Nasrin Ghasemi-Fakhr
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
| | - Mohsen Ghadami
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran,
| | - Fatemeh Nayeri
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Breast feeding Research Center, Tehran University of Medical Sciences, Tehran, Iran,
| | - Ali Rashidi-Nezhad
- Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran,
- Ronash Medical Genetic Center, Tehran, Iran,
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