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Ning J, Huai J, Wang S, Yan J, Su R, Zhang M, Liu M, Yang H. METTL3 regulates glucose transporter expression in placenta exposed to hyperglycemia through the mTOR signaling pathway. Chin Med J (Engl) 2024; 137:1563-1575. [PMID: 37963715 PMCID: PMC11230790 DOI: 10.1097/cm9.0000000000002840] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Alterations in the placental expression of glucose transporters (GLUTs), the crucial maternal-fetal nutrient transporters, have been found in women with hyperglycemia in pregnancy (HIP). However, there is still uncertainty about the underlying effect of the high-glucose environment on placental GLUTs expression in HIP. METHODS We quantitatively evaluated the activity of mammalian target of rapamycin (mTOR) and expression of GLUTs (GLUT1, GLUT3, and GLUT4) in the placenta of women with normal pregnancies (CTRL, n = 12) and pregnant women complicated with poorly controlled type 2 diabetes mellitus (T2DM, n = 12) by immunohistochemistry. In addition, BeWo cells were treated with different glucose concentrations to verify the regulation of hyperglycemia. Then, changes in the expression of GLUTs following the activation or suppression of the mTOR pathway were also assessed using MHY1485/rapamycin (RAPA) treatment or small interfering RNA (siRNA)-mediated silencing approaches. Moreover, we further explored the alteration and potential upstream regulatory role of methyltransferase-like 3 (METTL3) when exposed to hyperglycemia. RESULTS mTOR, phosphorylated mTOR (p-mTOR), and GLUT1 protein levels were upregulated in the placenta of women with T2DM compared with those CTRL. In BeWo cells, mTOR activity increased with increasing glucose concentration, and the expression of GLUT1, GLUT3, and GLUT4 as well as GLUT1 cell membrane translocation were upregulated by hyperglycemia to varying degrees. Both the drug-mediated and genetic depletion of mTOR signaling in BeWo cells suppressed GLUTs expression, whereas MHY1485-induced mTOR activation upregulated GLUTs expression. Additionally, high glucose levels upregulated METTL3 expression and nuclear translocation, and decreasing METTL3 levels suppressed GLUTs expression and mTOR activity and vice versa . Furthermore, in METTL3 knockdown BeWo cells, the inhibitory effect on GLUTs expression was eliminated by activating the mTOR signaling pathway using MHY1485. CONCLUSION High-glucose environment-induced upregulation of METTL3 in trophoblasts regulates the expression of GLUTs through mTOR signaling, contributing to disordered nutrient transport in women with HIP.
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Affiliation(s)
- Jie Ning
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Jing Huai
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Shuxian Wang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Jie Yan
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Rina Su
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
| | - Muqiu Zhang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Mengtong Liu
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
| | - Huixia Yang
- Department of Obstetrics and Gynaecology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Maternal Foetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
- Peking University, Beijing 100034, China
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Zhou J, Sheng Y, Chen Z, Ding H, Zheng X. RNA-seq reveals differentially expressed lncRNAs and circRNAs and their associated functional network in HTR-8/Svneo cells under hypoxic conditions. BMC Med Genomics 2024; 17:172. [PMID: 38943134 PMCID: PMC11212387 DOI: 10.1186/s12920-024-01933-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 06/13/2024] [Indexed: 07/01/2024] Open
Abstract
Placental hypoxia is hazardous to maternal health as well as fetal growth and development. Preeclampsia and intrauterine growth restriction are common pregnancy problems, and one of the causes is placental hypoxia. Placental hypoxia is linked to a number of pregnancy illnessesv. To investigate their potential function in anoxic circumstances, we mimicked the anoxic environment of HTR-8/Svneo cells and performed lncRNA and circRNA studies on anoxic HTR-8/Svneo cells using high-throughput RNA sequencing. The miRNA target genes were predicted by integrating the aberrant expression of miRNAs in the placenta of preeclampsia and intrauterine growth restriction, and a ceRNA network map was developed to conduct a complete transcriptomic and bioinformatics investigation of circRNAs and lncRNAs. The signaling pathways in which the genes were primarily engaged were predicted using GO and KEGG analyses. To propose a novel explanation for trophoblastic organism failure caused by lncRNAs and circRNAs in an anoxic environment.
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Affiliation(s)
- Jiaqing Zhou
- Obstetrics and Gynecology, Ningbo University, Ningbo, China
- Obstetrics and Gynecology, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - YueHua Sheng
- Obstetrics and Gynecology, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Zhezhan Chen
- Obstetrics and Gynecology, Ningbo University, Ningbo, China
- Obstetrics and Gynecology, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Huiqing Ding
- Obstetrics and Gynecology, Ningbo University, Ningbo, China.
- Obstetrics and Gynecology, The First Affiliated Hospital of Ningbo University, Ningbo, China.
| | - Xiaojiao Zheng
- Obstetrics and Gynecology, Ningbo University, Ningbo, China.
- Obstetrics and Gynecology, The First Affiliated Hospital of Ningbo University, Ningbo, China.
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Dong J, Xu Q, Qian C, Wang L, DiSciullo A, Lei J, Lei H, Yan S, Wang J, Jin N, Xiong Y, Zhang J, Burd I, Wang X. Fetal growth restriction exhibits various mTOR signaling in different regions of mouse placentas with altered lipid metabolism. Cell Biol Toxicol 2024; 40:15. [PMID: 38451382 PMCID: PMC10920423 DOI: 10.1007/s10565-024-09855-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
Fetal growth restriction (FGR) is a common complication of pregnancy and can have significant impact on obstetric and neonatal outcomes. Increasing evidence has shown that the inhibited mechanistic target of rapamycin (mTOR) signaling in placenta is associated with FGR. However, interpretation of existing research is limited due to inconsistent methodologies and varying understanding of the mechanism by which mTOR activity contributes to FGR. Hereby, we have demonstrated that different anatomic regions of human and mouse placentas exhibited different levels of mTOR activity in normal compared to FGR pregnancies. When using the rapamycin-induced FGR mouse model, we found that placentas of FGR pregnancies exhibited abnormal morphological changes and reduced mTOR activity in the decidual-junctional layer. Using transcriptomics and lipidomics, we revealed that lipid and energy metabolism was significantly disrupted in the placentas of FGR mice. Finally, we demonstrated that maternal physical exercise during gestation in our FGR mouse model was associated with increased fetal and placental weight as well as increased placental mTOR activity and lipid metabolism. Collectively, our data indicate that the inhibited placental mTOR signaling contributes to FGR with altered lipid metabolism in mouse placentas, and maternal exercise could be an effective method to reduce the occurrence of FGR or alleviate the adverse outcomes associated with FGR.
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Affiliation(s)
- Jie Dong
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China.
| | - Qian Xu
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Chenxi Qian
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Lu Wang
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Alison DiSciullo
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, 22 S. Greene Street, Suite P6H302, Baltimore, MD, 21201, USA
| | - Jun Lei
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, 22 S. Greene Street, Suite P6H302, Baltimore, MD, 21201, USA
| | - Hui Lei
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Song Yan
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Jingjing Wang
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Ni Jin
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Yujing Xiong
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China
| | - Jianhua Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Irina Burd
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, 22 S. Greene Street, Suite P6H302, Baltimore, MD, 21201, USA.
| | - Xiaohong Wang
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, NO. 569, Xinsi Road, Baqiao District, Xi'an, 710038, Shaanxi Province, China.
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Wang B, Gao M, Yao Y, Li H, Zhang X. Focusing on the role of protein kinase mTOR in endometrial physiology and pathology: insights for therapeutic interventions. Mol Biol Rep 2024; 51:359. [PMID: 38400863 DOI: 10.1007/s11033-023-08937-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/30/2023] [Indexed: 02/26/2024]
Abstract
The mammalian target of rapamycin (mTOR) is a serine/threonine protein kinase crucial for cellular differentiation, proliferation, and autophagy. It shows a complex role in the endometrium, influencing both normal and pathogenic conditions. mTOR promotes the growth and maturation of endometrial cells, enhancing endometrial receptivity and decidualization. However, it also contributes to the development of endometriosis (EMs) and endometrial cancer (EC), thus emerging as a therapeutic target for these conditions. In this review, we summarize recent research progress on the mTOR signalling pathway in the endometrium. This provides insights into female endometrial structure and function and guides the prevention and treatment of related diseases.
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Affiliation(s)
- Bin Wang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Mingxia Gao
- Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China
- Key Laboratory for Reproductive Medicine and Embryo of Gansu, Lanzhou, China
| | - Ying Yao
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Hongwei Li
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xuehong Zhang
- Reproductive Medicine Center, The First Hospital of Lanzhou University, Lanzhou, China.
- Key Laboratory for Reproductive Medicine and Embryo of Gansu, Lanzhou, China.
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Hussey MR, Enquobahrie DA, Loftus CT, MacDonald JW, Bammler TK, Paquette AG, Marsit CJ, Szpiro AA, Kaufman JD, LeWinn KZ, Bush NR, Tylavsky F, Zhao Q, Karr CJ, Sathyanarayana S. Associations of prenatal exposure to NO 2 and near roadway residence with placental gene expression. Placenta 2023; 138:75-82. [PMID: 37216796 PMCID: PMC10349584 DOI: 10.1016/j.placenta.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/03/2023] [Accepted: 05/03/2023] [Indexed: 05/24/2023]
Abstract
INTRODUCTION Traffic-related air pollution (TRAP), a common exposure, potentially impacts pregnancy through altered placental function. We investigated associations between prenatal TRAP exposure and placental gene expression. METHODS Whole transcriptome sequencing was performed on placental samples from CANDLE (Memphis, TN) (n = 776) and GAPPS (Seattle and Yakima, WA) (n = 205), cohorts of the ECHO-PATHWAYS Consortium. Residential NO2 exposures were computed via spatiotemporal models for full-pregnancy, each trimester, and the first/last months of pregnancy. Individual cohort-specific, covariate-adjusted linear models were fit for 10,855 genes and respective exposures (NO2 or roadway proximity [≤150 m]). Infant-sex/exposure interactions on placental gene expression were tested with interaction terms in separate models. Significance was based on false discovery rate (FDR<0.10). RESULTS In GAPPS, final-month NO2 exposure was positively associated with MAP1LC3C expression (FDR p-value = 0.094). Infant-sex interacted with second-trimester NO2 on STRIP2 expression (FDR interaction p-value = 0.011, inverse and positive associations among male and female infants, respectively) and roadway proximity on CEBPA expression (FDR interaction p-value = 0.045, inverse among females). In CANDLE, infant-sex interacted with first-trimester and full-pregnancy NO2 on RASSF7 expression (FDR interaction p-values = 0.067 and 0.013, respectively, positive among male infants and inverse among female infants). DISCUSSION Overall, pregnancy NO2 exposure and placental gene expression associations were primarily null, with exception of final month NO2 exposure and placental MAP1LC3C association. We found several interactions of infant sex and TRAP exposures on placental expression of STRIP2, CEBPA, and RASSF7. These highlighted genes suggest influence of TRAP on placental cell proliferation, autophagy, and growth, though additional replication and functional studies are required for validation.
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Affiliation(s)
- Michael R Hussey
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA.
| | - Daniel A Enquobahrie
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA; Department of Health Systems and Population Health, School of Public Health, University of Washington, Seattle, WA, USA
| | - Christine T Loftus
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA
| | - James W MacDonald
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA
| | - Theo K Bammler
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA
| | - Alison G Paquette
- Department of Pediatrics, School of Medicine, University of Washington, Seattle, WA, USA; Seattle Children's Research Institute, Seattle, WA, USA
| | - Carmen J Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Adam A Szpiro
- Department of Biostatistics, School of Public Health, University of Washington, Seattle, WA, USA
| | - Joel D Kaufman
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA; Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA
| | - Kaja Z LeWinn
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Nicole R Bush
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, San Francisco, San Francisco, CA, USA; Department of Pediatrics, School of Medicine, University of California, San Francisco, San, Francisco, CA, USA
| | - Frances Tylavsky
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Qi Zhao
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Catherine J Karr
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA; Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA; Department of Pediatrics, School of Medicine, University of Washington, Seattle, WA, USA
| | - Sheela Sathyanarayana
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA; Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA; Department of Pediatrics, School of Medicine, University of Washington, Seattle, WA, USA; Seattle Children's Research Institute, Seattle, WA, USA
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Kyllo HM, Wang D, Lorca RA, Julian CG, Moore LG, Wilkening RB, Rozance PJ, Brown LD, Wesolowski SR. Adaptive responses in uteroplacental metabolism and fetoplacental nutrient shuttling and sensing during placental insufficiency. Am J Physiol Endocrinol Metab 2023; 324:E556-E568. [PMID: 37126847 PMCID: PMC10259853 DOI: 10.1152/ajpendo.00046.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/12/2023] [Accepted: 04/25/2023] [Indexed: 05/03/2023]
Abstract
Glucose, lactate, and amino acids are major fetal nutrients. During placental insufficiency-induced intrauterine growth restriction (PI-IUGR), uteroplacental weight-specific oxygen consumption rates are maintained, yet fetal glucose and amino acid supply is decreased and fetal lactate concentrations are increased. We hypothesized that uteroplacental metabolism adapts to PI-IUGR by altering nutrient allocation to maintain oxidative metabolism. Here, we measured nutrient flux rates, with a focus on nutrients shuttled between the placenta and fetus (lactate-pyruvate, glutamine-glutamate, and glycine-serine) in a sheep model of PI-IUGR. PI-IUGR fetuses weighed 40% less and had decreased oxygen, glucose, and amino acid concentrations and increased lactate and pyruvate versus control (CON) fetuses. Uteroplacental weight-specific rates of oxygen, glucose, lactate, and pyruvate uptake were similar. In PI-IUGR, fetal glucose uptake was decreased and pyruvate output was increased. In PI-IUGR placental tissue, pyruvate dehydrogenase (PDH) phosphorylation was decreased and PDH activity was increased. Uteroplacental glutamine output to the fetus and expression of genes regulating glutamine-glutamate metabolism were lower in PI-IUGR. Fetal glycine uptake was lower in PI-IUGR, with no differences in uteroplacental glycine or serine flux. These results suggest increased placental utilization of pyruvate from the fetus, without higher maternal glucose utilization, and lower fetoplacental amino acid shuttling during PI-IUGR. Mechanistically, AMP-activated protein kinase (AMPK) activation was higher and associated with thiobarbituric acid-reactive substances (TBARS) content, a marker of oxidative stress, and PDH activity in the PI-IUGR placenta, supporting a potential link between oxidative stress, AMPK, and pyruvate utilization. These differences in fetoplacental nutrient sensing and shuttling may represent adaptive strategies enabling the placenta to maintain oxidative metabolism.NEW & NOTEWORTHY These results suggest increased placental utilization of pyruvate from the fetus, without higher maternal glucose uptake, and lower amino acid shuttling in the placental insufficiency-induced intrauterine growth restriction (PI-IUGR) placenta. AMPK activation was associated with oxidative stress and PDH activity, supporting a putative link between oxidative stress, AMPK, and pyruvate utilization. These differences in fetoplacental nutrient sensing and shuttling may represent adaptive strategies enabling the placenta to maintain oxidative metabolism at the expense of fetal growth.
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Affiliation(s)
- Hannah M Kyllo
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Dong Wang
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Ramón A Lorca
- Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Colleen G Julian
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Lorna G Moore
- Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Randall B Wilkening
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Paul J Rozance
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Laura D Brown
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Stephanie R Wesolowski
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, United States
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Carabulea AL, Janeski JD, Naik VD, Chen K, Mor G, Ramadoss J. A multi-organ analysis of the role of mTOR in fetal alcohol spectrum disorders. FASEB J 2023; 37:e22897. [PMID: 37000494 PMCID: PMC10841000 DOI: 10.1096/fj.202201865r] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/21/2023] [Accepted: 03/16/2023] [Indexed: 04/01/2023]
Abstract
Alcohol exposure during gestation can lead to fetal alcohol spectrum disorders (FASD), an array of cognitive and physical developmental impairments. Over the past two and a half decades, Mammalian Target of Rapamycin (mTOR) has emerged at the nexus of many fields of study, and has recently been implicated in FASD etiology. mTOR plays an integral role in modulating anabolic and catabolic activities, including protein synthesis and autophagy. These processes are vital for proper development and can have long lasting effects following alcohol exposure, such as impaired hippocampal and synapse formation, reduced brain size, as well as cognitive, behavioral, and memory impairments. We highlight recent advances in the field of FASD, primarily with regard to animal model discoveries and discuss the interaction between alcohol and mTOR in the context of various tissues, including brain, placenta, bone, and muscle, with respect to developmental alcohol exposure paradigms. The current review focuses on novel FASD research within the context of the mTOR signaling and sheds light on mechanistic etiologies at various biological levels including molecular, cellular, and functional, across multiple stages of development and illuminates the dichotomy between the different mTOR complexes and their unique signaling roles.
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Affiliation(s)
- Alexander L. Carabulea
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of MedicineWayne State UniversityDetroitMichiganUSA
| | - Joseph D. Janeski
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of MedicineWayne State UniversityDetroitMichiganUSA
| | - Vishal D. Naik
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of MedicineWayne State UniversityDetroitMichiganUSA
| | - Kang Chen
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of MedicineWayne State UniversityDetroitMichiganUSA
- Barbara Ann Karmanos Cancer InstituteWayne State UniversityDetroitMichiganUSA
| | - Gil Mor
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of MedicineWayne State UniversityDetroitMichiganUSA
- Department of Physiology, School of MedicineWayne State UniversityDetroitMichiganUSA
| | - Jayanth Ramadoss
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of MedicineWayne State UniversityDetroitMichiganUSA
- Department of Physiology, School of MedicineWayne State UniversityDetroitMichiganUSA
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Dong J, Xu Q, Chen S, Lei H, Wang J, Yan S, Qian C, Wang X. Comparative Proteomic and Phospho-proteomic Analysis of Mouse Placentas Generated via In Vivo and In Vitro Fertilization. Reprod Sci 2023; 30:1143-1156. [PMID: 36280645 DOI: 10.1007/s43032-022-01109-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/13/2022] [Indexed: 10/31/2022]
Abstract
Offspring conceived by assisted reproductive technologies (ART) have increased risk of suffering from gestational complications, and placental dysfunction is related with the adverse outcomes. Studies have revealed that abnormal or adaptive changes can occur in ART placentas, but the potential reasons are not fully understood. Hereby, we tried to use proteomics and phospho-proteomics to find the underlying mechanisms responsible for the changes of ART placentas. Liquid chromatography-tandem mass spectrometry was utilized to perform proteome and phospho-proteome detection on mouse placentas. The differential expressed proteins (DEPs) or phospho-proteins (DEPPs) were analyzed based on subcellular localization, functional classification, and enrichment. Western blot was used to verify the DEPs (Afadin, ZO-1, Ace2, Agt, Slc7a5, and Slc38a10) and measure mTOR signaling activities (mTOR, Rps6, and 4Ebp1). The data showed that 161 DEPs and 304 DEPPs were found in proteome and phospho-proteome, respectively. Multiple biological processes were enriched based on those DEPs and DEPPs, and renin-angiotensin system, cell junction, and PI3K-Akt pathway were investigated. By protein expression identification, two key proteins associated with renin-angiotensin system (Ace2 and Agt) were down-regulated, and the levels of Afadin and ZO-1 (related with cell junction) as well as Slc38a10 were increased in IVF placentas. In addition, mTOR downstream activities were increased as shown by p-Rps6 and p-4Ebp1 in IVF placentas. In conclusion, IVF leads to the changes of cell junction, renin-angiotensin system, amino acid transport, and increased mTOR signaling in mouse placentas, which may be associated with the altered structure and function of IVF placentas.
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Affiliation(s)
- Jie Dong
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Qian Xu
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Shuqiang Chen
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Hui Lei
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Jingjing Wang
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Song Yan
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Chenxi Qian
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China
| | - Xiaohong Wang
- Department of Obstetrics and Gynaecology, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, Shaanxi Province, China.
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Øyri LKL, Christensen JJ, Sebert S, Thoresen M, Michelsen TM, Ulven SM, Brekke HK, Retterstøl K, Brantsæter AL, Magnus P, Bogsrud MP, Holven KB. Maternal prenatal cholesterol levels predict offspring weight trajectories during childhood in the Norwegian Mother, Father and Child Cohort Study. BMC Med 2023; 21:43. [PMID: 36747215 PMCID: PMC9903496 DOI: 10.1186/s12916-023-02742-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 01/18/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Numerous intrauterine factors may affect the offspring's growth during childhood. We aimed to explore if maternal and paternal prenatal lipid, apolipoprotein (apo)B and apoA1 levels are associated with offspring weight, length, and body mass index from 6 weeks to eight years of age. This has previously been studied to a limited extent. METHODS This parental negative control study is based on the Norwegian Mother, Father and Child Cohort Study and uses data from the Medical Birth Registry of Norway. We included 713 mothers and fathers with or without self-reported hypercholesterolemia and their offspring. Seven parental metabolites were measured by nuclear magnetic resonance spectroscopy, and offspring weight and length were measured at 12 time points. Data were analyzed by linear spline mixed models, and the results are presented as the interaction between parental metabolite levels and offspring spline (age). RESULTS Higher maternal total cholesterol (TC) level was associated with a larger increase in offspring body weight up to 8 years of age (0.03 ≤ Pinteraction ≤ 0.04). Paternal TC level was not associated with change in offspring body weight (0.17 ≤ Pinteraction ≤ 0.25). Higher maternal high-density lipoprotein cholesterol (HDL-C) and apoA1 levels were associated with a lower increase in offspring body weight up to 8 years of age (0.001 ≤ Pinteraction ≤ 0.005). Higher paternal HDL-C and apoA1 levels were associated with a lower increase in offspring body weight up to 5 years of age but a larger increase in offspring body weight from 5 to 8 years of age (0.01 ≤ Pinteraction ≤ 0.03). Parental metabolites were not associated with change in offspring height or body mass index up to 8 years of age (0.07 ≤ Pinteraction ≤ 0.99). CONCLUSIONS Maternal compared to paternal TC, HDL-C, and apoA1 levels were more strongly and consistently associated with offspring body weight during childhood, supporting a direct intrauterine effect.
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Affiliation(s)
- Linn K L Øyri
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0317, Oslo, Norway
| | - Jacob J Christensen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0317, Oslo, Norway
| | - Sylvain Sebert
- Research Unit of Population Health, Faculty of Medicine, PO Box 5000, FI-90014 University of Oulu, Oulu, Finland
| | - Magne Thoresen
- Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, PO Box 1122, Blindern, 0317, Oslo, Norway
| | - Trond M Michelsen
- Department of Obstetrics, Oslo University Hospital Rikshospitalet, PO Box 4956, Nydalen, 0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, PO Box 1171, Blindern, 0318, Oslo, Norway
| | - Stine M Ulven
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0317, Oslo, Norway
| | - Hilde K Brekke
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0317, Oslo, Norway
| | - Kjetil Retterstøl
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0317, Oslo, Norway.,The Lipid Clinic, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital Aker, PO Box 4959, Nydalen, 0424, Oslo, Norway
| | - Anne Lise Brantsæter
- Division of Climate and Environmental Health, Department of Food Safety, Norwegian Institute of Public Health, PO Box 222, Skøyen, 0213, Oslo, Norway
| | - Per Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, 0213, Oslo, Norway
| | - Martin P Bogsrud
- Unit for Cardiac and Cardiovascular Genetics, Department of Medical Genetics, Oslo University Hospital Ullevål, PO Box 4956, Nydalen, 0424, Oslo, Norway
| | - Kirsten B Holven
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, PO Box 1046, Blindern, 0317, Oslo, Norway. .,Norwegian National Advisory Unit on Familial Hypercholesterolemia, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital Aker, PO Box 4959, Nydalen, 0424, Oslo, Norway.
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10
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Correlation between Parturients' Uterine Artery Blood Flow Spectra in the First and Second Trimesters of Pregnancy and Fetal Growth Restriction. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:2129201. [PMID: 34950439 PMCID: PMC8692016 DOI: 10.1155/2021/2129201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/15/2021] [Indexed: 01/01/2023]
Abstract
Objective To explore the correlation between parturients' uterine artery blood flow spectra in the first and second trimesters of pregnancy and fetal growth restriction (FGR). Methods The data of parturients treated in our hospital from February 2018 to February 2020 were retrospectively analyzed, 50 parturients with FGR were selected as the FGR group, and other 50 healthy cases were selected as the control group. In the first trimester (11-12 weeks of gestation) and the second trimester of pregnancy (13–24 weeks of gestation), the parturients of the two groups accepted the color Doppler ultrasonography (CDS), their hemodynamics indicators of uterine artery were recorded, and the correlation between their uterine artery blood flow spectra in the two periods and FGR was analyzed with the Receiver Operating Characteristic (ROC) curve. Results No statistical differences in the parturients' general information including age, gestational weeks, gravidity, and parity between the two groups were observed (P > 0.05); the newborn's body weight, Apgar scores, number of preterm infants, and the number of infants transferring to the neonatal intensive care unit (NICU) were significantly different between the two groups (P < 0.05); in the first and second trimesters of pregnancy, the uterine artery pulsatility index (UtA-PI), uterine artery resistance index (UtA-RI), maximal systolic flow velocity, and systolic/diastolic (UtA-S/D) ratio were significantly higher in the FGR group than in the control group (P < 0.05), and the time-averaged maximal velocity (TAMX) was significantly lower in the FGR group than in the control group (P < 0.001); in early pregnancy, the incidence of early diastolic notch at bilateral uterine arteries between the two groups was not significantly different (P > 0.05), and the unilateral and total incidence in the first trimester as well as the unilateral, bilateral, and total incidence in the second trimester were significantly higher in the FGR group than in the control group (P < 0.05); in the first trimester, the sensitivity of detecting FGR with a uterine artery blood flow spectrum was 0.820, AUC (95% CI) = 0.840 (0.757–0.923), and in the second trimester, it was 0.860, AUC (95% CI) = 0.900 (0.832–0.968). Conclusion There is a correlation between uterine artery blood flow spectra in the first and second trimesters of pregnancy and FGR, and the sensitivity of spectrum in the first trimester is higher than that in the second trimester, presenting a better clinical application value.
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Tshering S, Dorji N, Youden S, Wangchuk D. Maternal sirolimus therapy and fetal growth restriction. Arch Clin Cases 2021; 8:19-24. [PMID: 34754935 PMCID: PMC8565690 DOI: 10.22551/2021.31.0802.10180] [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] [Indexed: 11/25/2022] Open
Abstract
Fetal growth restriction associated with continued maternal sirolimus therapy in pregnancy has not been reported. We hereby present a case of maternal sirolimus therapy resulting in fetal growth restriction and propose a multi-hit model. This hypothetic model is based on inhibition of mTOR signaling pathway and epigenetic modulation. This case report adds to the paucity of literature on continued monotherapeutic maternal sirolimus in pregnancy and its adverse fetal effects.
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Affiliation(s)
- Sangay Tshering
- Department of Obstetrics & Gynecology, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan
| | - Namkha Dorji
- Department of Obstetrics & Gynecology, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan
| | - Sonam Youden
- Faculty of Post Graduate Medicine, Khesar Gyalpo University of Medical Sciences of Bhutan, Thimphu, Bhutan
| | - Dorji Wangchuk
- Faculty of Post Graduate Medicine, Khesar Gyalpo University of Medical Sciences of Bhutan, Thimphu, Bhutan
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12
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Fleming TP, Sun C, Denisenko O, Caetano L, Aljahdali A, Gould JM, Khurana P. Environmental Exposures around Conception: Developmental Pathways Leading to Lifetime Disease Risk. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9380. [PMID: 34501969 PMCID: PMC8431664 DOI: 10.3390/ijerph18179380] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 12/11/2022]
Abstract
Environment around conception can influence the developmental programme with lasting effects on gestational and postnatal phenotype and with consequences for adult health and disease risk. Peri-conception exposure comprises a crucial part of the 'Developmental Origins of Health and Disease' (DOHaD) concept. In this review, we consider the effects of maternal undernutrition experienced during the peri-conception period in select human models and in a mouse experimental model of protein restriction. Human datasets indicate that macronutrient deprivation around conception affect the epigenome, with enduring effects on cardiometabolic and neurological health. The mouse model, comprising maternal low protein diet exclusively during the peri-conception period, has revealed a stepwise progression in altered developmental programming following induction through maternal metabolite deficiency. This progression includes differential effects in extra-embryonic and embryonic cell lineages and tissues, leading to maladaptation in the growth trajectory and increased chronic disease comorbidities. The timeline embraces an array of mechanisms across nutrient sensing and signalling, cellular, metabolic, epigenetic and physiological processes with a coordinating role for mTORC1 signalling proposed. Early embryos appear active participants in environmental sensing to optimise the developmental programme for survival but with the trade-off of later disease. Similar adverse health outcomes may derive from other peri-conception environmental experiences, including maternal overnutrition, micronutrient availability, pollutant exposure and assisted reproductive treatments (ART) and support the need for preconception health before pregnancy.
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Affiliation(s)
- Tom P. Fleming
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
| | - Congshan Sun
- Departments of Neurology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
- Center for Genetic Muscle Disorders, Hugo W. Moser Research Institute at Kennedy Krieger Institute, Baltimore, MD 21205, USA
| | - Oleg Denisenko
- Department of Medicine, University of Washington, 850 Republican St., Rm 242, Seattle, WA 98109, USA;
| | - Laura Caetano
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
| | - Anan Aljahdali
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
- Department of Biological Sciences, Faculty of Science, Alfaisaliah campus, University of Jeddah, Jeddah 23442, Saudi Arabia
| | - Joanna M. Gould
- Clinical Neurosciences and Psychiatry, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK;
| | - Pooja Khurana
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
- Institute for Biogenesis Research, Research Corporation of the University of Hawaii, Manoa, Honolulu, HI 96822, USA
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13
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Aplin JD, Jones CJP. Cell dynamics in human villous trophoblast. Hum Reprod Update 2021; 27:904-922. [PMID: 34125187 DOI: 10.1093/humupd/dmab015] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/22/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Villous cytotrophoblast (vCTB) is a precursor cell population that supports the development of syncytiotrophoblast (vSTB), the high surface area barrier epithelium of the placental villus, and the primary interface between maternal and fetal tissue. In light of increasing evidence that the placenta can adapt to changing maternal environments or, under stress, can trigger maternal disease, we consider what properties of these cells empower them to exert a controlling influence on pregnancy progression and outcome. OBJECTIVE AND RATIONALE How are cytotrophoblast proliferation and differentiation regulated in the human placental villus to allow for the increasing demands of the fetal and environmental challenges and stresses that may arise during pregnancy? SEARCH METHODS PubMed was interrogated using relevant keywords and word roots combining trophoblast, villus/villous, syncytio/syncytium, placenta, stem, transcription factor (and the individual genes), signalling, apoptosis, autophagy (and the respective genes) from 1960 to the present. Since removal of trophoblast from its tissue environment is known to fundamentally change cell growth and differentiation kinetics, research that relied exclusively on cell culture has not been the main focus of this review, though it is mentioned where appropriate. Work on non-human placenta is not systematically covered, though mention is made where relevant hypotheses have emerged. OUTCOMES The synthesis of data from the literature has led to a new hypothesis for vCTB dynamics. We propose that a reversible transition can occur from a reserve population in G0 to a mitotically active state. Cells from the in-cycle population can then differentiate irreversibly to intermediate cells that leave the cycle and turn on genes that confer the capacity to fuse with the overlying vSTB as well as other functions associated with syncytial barrier and transport function. We speculate that alterations in the rate of entry to the cell cycle, or return of cells in the mitotic fraction to G0, can occur in response to environmental challenge. We also review evidence on the life cycle of trophoblast from the time that fusion occurs, and point to gaps in knowledge of how large quantities of fetal DNA arrive in maternal circulation. We critique historical methodology and make a case for research to re-address questions about trophoblast lifecycle and dynamics in normal pregnancy and the common diseases of pre-eclampsia and fetal growth restriction, where altered trophoblast kinetics have long been postulated. WIDER IMPLICATIONS The hypothesis requires experimental testing, moving research away from currently accepted methodology towards a new standard that includes representative cell and tissue sampling, assessment of cell cycle and differentiation parameters, and robust classification of cell subpopulations in villous trophoblast, with due attention to gestational age, maternal and fetal phenotype, disease and outcome.
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Affiliation(s)
- John D Aplin
- Maternal and Fetal Health, University of Manchester, Manchester Academic Health Sciences Centre, St Mary's Hospital, Manchester, UK
| | - Carolyn J P Jones
- Maternal and Fetal Health, University of Manchester, Manchester Academic Health Sciences Centre, St Mary's Hospital, Manchester, UK
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Ali A, Hadlich F, Abbas MW, Iqbal MA, Tesfaye D, Bouma GJ, Winger QA, Ponsuksili S. MicroRNA-mRNA Networks in Pregnancy Complications: A Comprehensive Downstream Analysis of Potential Biomarkers. Int J Mol Sci 2021; 22:2313. [PMID: 33669156 PMCID: PMC7956714 DOI: 10.3390/ijms22052313] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 02/07/2023] Open
Abstract
Pregnancy complications are a major cause of fetal and maternal morbidity and mortality in humans. The majority of pregnancy complications initiate due to abnormal placental development and function. During the last decade, the role of microRNAs (miRNAs) in regulating placental and fetal development has become evident. Dysregulation of miRNAs in the placenta not only affects placental development and function, but these miRNAs can also be exported to both maternal and fetal compartments and affect maternal physiology and fetal growth and development. Due to their differential expression in the placenta and maternal circulation during pregnancy complications, miRNAs can be used as diagnostic biomarkers. However, the differential expression of a miRNA in the placenta may not always be reflected in maternal circulation, which makes it difficult to find a reliable biomarker for placental dysfunction. In this review, we provide an overview of differentially expressed miRNAs in the placenta and/or maternal circulation during preeclampsia (PE) and intrauterine growth restriction (IUGR), which can potentially serve as biomarkers for prediction or diagnosis of pregnancy complications. Using different bioinformatics tools, we also identified potential target genes of miRNAs associated with PE and IUGR, and the role of miRNA-mRNA networks in the regulation of important signaling pathways and biological processes.
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Affiliation(s)
- Asghar Ali
- Leibniz Institute for Farm Animal Biology, Institute of Genome Biology, 18196 Dummerstorf, Germany
- Animal Reproduction and Biomedical Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Frieder Hadlich
- Leibniz Institute for Farm Animal Biology, Institute of Genome Biology, 18196 Dummerstorf, Germany
| | - Muhammad W Abbas
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan
| | - Muhammad A Iqbal
- Leibniz Institute for Farm Animal Biology, Institute of Genome Biology, 18196 Dummerstorf, Germany
| | - Dawit Tesfaye
- Animal Reproduction and Biomedical Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Gerrit J Bouma
- Animal Reproduction and Biomedical Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Quinton A Winger
- Animal Reproduction and Biomedical Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Siriluck Ponsuksili
- Leibniz Institute for Farm Animal Biology, Institute of Genome Biology, 18196 Dummerstorf, Germany
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