1
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Ackerman WE, Rigo MM, DaSilva-Arnold SC, Do C, Tariq M, Salas M, Castano A, Zamudio S, Tycko B, Illsley NP. Epigenetic changes regulating the epithelial-mesenchymal transition in human trophoblast differentiation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.02.601748. [PMID: 39005325 PMCID: PMC11244995 DOI: 10.1101/2024.07.02.601748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
The phenotype of human placental extravillous trophoblast (EVT) at the end of pregnancy reflects both first trimester differentiation from villous cytotrophoblast (CTB) and later gestational changes, including loss of proliferative and invasive capacity. Invasion abnormalities are central to two major placental pathologies, preeclampsia and placenta accreta spectrum, so characterization of the corresponding normal processes is crucial. In this report, our gene expression analysis, using purified human CTB and EVT cells, highlights an epithelial-mesenchymal transition (EMT) mechanism underlying CTB-EVT differentiation and provides a trophoblast-specific EMT signature. In parallel, DNA methylation profiling shows that CTB cells, already hypomethylated relative to non-trophoblast cell lineages, show further genome-wide hypomethylation in the transition to EVT. However, a small subgroup of genes undergoes gains of methylation (GOM) in their regulatory regions or gene bodies, associated with differential mRNA expression (DE). Prominent in this GOM-DE group are genes involved in the EMT, including multiple canonical EMT markers and the EMT-linked transcription factor RUNX1, for which we demonstrate a functional role in modulating the migratory and invasive capacities of JEG3 trophoblast cells. This analysis of DE associated with locus-specific GOM, together with functional studies of an important GOM-DE gene, highlights epigenetically regulated genes and pathways acting in human EVT differentiation and invasion, with implications for obstetric disorders in which these processes are dysregulated.
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Affiliation(s)
- William E. Ackerman
- Department of Obstetrics and Gynecology and AI.Health4All Center for Health Equity Using Machine Learning and Artificial Intelligence, University of Illinois College of Medicine, Chicago, USA
| | - Mauricio M. Rigo
- Hackensack Meridian Health Center for Discovery and Innovation, Nutley, NJ
| | - Sonia C. DaSilva-Arnold
- Department of Obstetrics and Gynecology, Hackensack University Medical Center, Hackensack NJ
| | - Catherine Do
- Hackensack Meridian Health Center for Discovery and Innovation, Nutley, NJ
| | - Mariam Tariq
- Hackensack Meridian Health Center for Discovery and Innovation, Nutley, NJ
| | - Martha Salas
- Hackensack Meridian Health Center for Discovery and Innovation, Nutley, NJ
| | - Angelica Castano
- Hackensack Meridian Health Center for Discovery and Innovation, Nutley, NJ
| | - Stacy Zamudio
- Department of Obstetrics and Gynecology, Hackensack University Medical Center, Hackensack NJ
| | - Benjamin Tycko
- Hackensack Meridian Health Center for Discovery and Innovation, Nutley, NJ
| | - Nicholas P. Illsley
- Department of Obstetrics and Gynecology, Hackensack University Medical Center, Hackensack NJ
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2
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Shimode S. Acquisition and Exaptation of Endogenous Retroviruses in Mammalian Placenta. Biomolecules 2023; 13:1482. [PMID: 37892164 PMCID: PMC10604696 DOI: 10.3390/biom13101482] [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: 08/15/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/29/2023] Open
Abstract
Endogenous retroviruses (ERVs) are retrovirus-like sequences that were previously integrated into the host genome. Although most ERVs are inactivated by mutations, deletions, or epigenetic regulation, some remain transcriptionally active and impact host physiology. Several ERV-encoded proteins, such as Syncytins and Suppressyn, contribute to placenta acquisition, a crucial adaptation in mammals that protects the fetus from external threats and other risks while enabling the maternal supply of oxygen, nutrients, and antibodies. In primates, Syncytin-1 and Syncytin-2 facilitate cell-cell fusion for placental formation. Suppressyn is the first ERV-derived protein that inhibits cell fusion by binding to ASCT2, the receptor for Syncytin-1. Furthermore, Syncytin-2 likely inserted into the genome of the common ancestor of Anthropoidea, whereas Syncytin-1 and Suppressyn likely inserted into the ancestor of catarrhines; however, they were inactivated in some lineages, suggesting that multiple exaptation events had occurred. This review discusses the role of ERV-encoded proteins, particularly Syncytins and Suppressyn, in placental development and function, focusing on the integration of ERVs into the host genome and their contribution to the genetic mechanisms underlying placentogenesis. This review provides valuable insights into the molecular and genetic aspects of placentation, potentially shedding light on broader evolutionary and physiological processes in mammals.
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Affiliation(s)
- Sayumi Shimode
- Genome Editing Innovation Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-0046, Japan;
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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3
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Lermant A, Rabussier G, Lanz HL, Davidson L, Porter IM, Murdoch CE. Development of a human iPSC-derived placental barrier-on-chip model. iScience 2023; 26:107240. [PMID: 37534160 PMCID: PMC10392097 DOI: 10.1016/j.isci.2023.107240] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/28/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023] Open
Abstract
Although recently developed placenta-on-chip systems opened promising perspectives for placental barrier modeling, they still lack physiologically relevant trophoblasts and are poorly amenable to high-throughput studies. We aimed to implement human-induced pluripotent stem cells (hiPSC)-derived trophoblasts into a multi-well microfluidic device to develop a physiologically relevant and scalable placental barrier model. When cultured in a perfused micro-channel against a collagen-based matrix, hiPSC-derived trophoblasts self-arranged into a 3D structure showing invasive behavior, fusogenic and endocrine activities, structural integrity, and expressing placental transporters. RNA-seq analysis revealed that the microfluidic 3D environment boosted expression of genes related to early placental structural development, mainly involved in mechanosensing and cell surface receptor signaling. These results demonstrated the feasibility of generating a differentiated primitive syncytium from hiPSC in a microfluidic platform. Besides expanding hiPSC-derived trophoblast scope of applications, this study constitutes an important resource to improve placental barrier models and boost research and therapeutics evaluation in pregnancy.
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Affiliation(s)
- Agathe Lermant
- Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | | | | | - Lindsay Davidson
- Human Pluripotent Stem Cell Facility, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Iain M. Porter
- Dundee Imaging Facility, School of Life Sciences, University of Dundee, DD1 5EH, UK
| | - Colin E. Murdoch
- Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
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4
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Yu Y, Mu C, Xu Y, Li Y, Ren S, Kong S, Deng W, Wang Y, Wang H, Lu J. Adgrg1 is a new transcriptional target of Hand1 during trophoblast giant cell differentiation. J Reprod Immunol 2022; 154:103753. [PMID: 36228547 DOI: 10.1016/j.jri.2022.103753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 08/14/2022] [Accepted: 09/26/2022] [Indexed: 12/14/2022]
Abstract
The placenta, forming the maternal-fetal interface, is essential for the survival and development of the fetus. It has been shown that the basic helix-loop-helix (bHLH) transcription factor Hand1 plays an important role in trophoblast giant cells (TGCs) differentiation during placental development in mice. However, the underlying molecular mechanism remains elusive. We hereby report that Adgrg1 (GPR56), a G protein coupled receptor, was a new transcriptional target of Hand1. Hand1 activated the expression of Adgrg1 by binding to its promoter region during TGCs differentiation. Double in situ hybridization revealed co-expression of Hand1 and Adgrg1 in Prl2c2+ TGCs located in the junctional zone of the placenta. Knockdown of Adgrg1 not only led to increased Prl2c2 expression, but also the improvement of cell migration and invasion during TGC differentiation. Moreover, the ligand of Adgrg1, Tgm2, was expressed in Prl2c2+ TGCs located in the placental junctional zone and Tgm2 Knockdown increased cell migration and invasion, suggesting Tgm2 is a potential ligand involved in the functions of Adgrg1 during TGC differentiation in the manners of autocrine. Collectively, these results demonstrate that Adgrg1 is a new transcriptional target of Hand1, affecting Prl2c2 expression as well as cell migration and invasion during TGCs differentiation. As a transmembrane receptor, Adgrg1 perhaps could act as a potential therapeutic target for placental-associated diseases caused by abnormal trophoblast migration and invasion, providing new insights for the preventions and therapies of placenta-related diseases.
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Affiliation(s)
- Yongqin Yu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Change Mu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yingchun Xu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yuanyuan Li
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Shengnan Ren
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Shuangbo Kong
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wenbo Deng
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yinan Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Haibin Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.
| | - Jinhua Lu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.
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5
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Bhadsavle SS, Golding MC. Paternal epigenetic influences on placental health and their impacts on offspring development and disease. Front Genet 2022; 13:1068408. [PMID: 36468017 PMCID: PMC9716072 DOI: 10.3389/fgene.2022.1068408] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/04/2022] [Indexed: 07/25/2023] Open
Abstract
Our efforts to understand the developmental origins of birth defects and disease have primarily focused on maternal exposures and intrauterine stressors. Recently, research into non-genomic mechanisms of inheritance has led to the recognition that epigenetic factors carried in sperm also significantly impact the health of future generations. However, although researchers have described a range of potential epigenetic signals transmitted through sperm, we have yet to obtain a mechanistic understanding of how these paternally-inherited factors influence offspring development and modify life-long health. In this endeavor, the emerging influence of the paternal epigenetic program on placental development, patterning, and function may help explain how a diverse range of male exposures induce comparable intergenerational effects on offspring health. During pregnancy, the placenta serves as the dynamic interface between mother and fetus, regulating nutrient, oxygen, and waste exchange and coordinating fetal growth and maturation. Studies examining intrauterine maternal stressors routinely describe alterations in placental growth, histological organization, and glycogen content, which correlate with well-described influences on infant health and adult onset of disease. Significantly, the emergence of similar phenotypes in models examining preconception male exposures indicates that paternal stressors transmit an epigenetic memory to their offspring that also negatively impacts placental function. Like maternal models, paternally programmed placental dysfunction exerts life-long consequences on offspring health, particularly metabolic function. Here, focusing primarily on rodent models, we review the literature and discuss the influences of preconception male health and exposure history on placental growth and patterning. We emphasize the emergence of common placental phenotypes shared between models examining preconception male and intrauterine stressors but note that the direction of change frequently differs between maternal and paternal exposures. We posit that alterations in placental growth, histological organization, and glycogen content broadly serve as reliable markers of altered paternal developmental programming, predicting the emergence of structural and metabolic defects in the offspring. Finally, we suggest the existence of an unrecognized developmental axis between the male germline and the extraembryonic lineages that may have evolved to enhance fetal adaptation.
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Affiliation(s)
| | - Michael C. Golding
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
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6
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Abstract
Viruses are the most abundant biological entities on Earth, and yet, they have not received enough consideration in astrobiology. Viruses are also extraordinarily diverse, which is evident in the types of relationships they establish with their host, their strategies to store and replicate their genetic information and the enormous diversity of genes they contain. A viral population, especially if it corresponds to a virus with an RNA genome, can contain an array of sequence variants that greatly exceeds what is present in most cell populations. The fact that viruses always need cellular resources to multiply means that they establish very close interactions with cells. Although in the short term these relationships may appear to be negative for life, it is evident that they can be beneficial in the long term. Viruses are one of the most powerful selective pressures that exist, accelerating the evolution of defense mechanisms in the cellular world. They can also exchange genetic material with the host during the infection process, providing organisms with capacities that favor the colonization of new ecological niches or confer an advantage over competitors, just to cite a few examples. In addition, viruses have a relevant participation in the biogeochemical cycles of our planet, contributing to the recycling of the matter necessary for the maintenance of life. Therefore, although viruses have traditionally been excluded from the tree of life, the structure of this tree is largely the result of the interactions that have been established throughout the intertwined history of the cellular and the viral worlds. We do not know how other possible biospheres outside our planet could be, but it is clear that viruses play an essential role in the terrestrial one. Therefore, they must be taken into account both to improve our understanding of life that we know, and to understand other possible lives that might exist in the cosmos.
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Affiliation(s)
- Ignacio de la Higuera
- Department of Biology, Center for Life in Extreme Environments, Portland State University, Portland, OR, United States
| | - Ester Lázaro
- Centro de Astrobiología (CAB), CSIC-INTA, Torrejón de Ardoz, Spain
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7
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The Role of Transposable Elements of the Human Genome in Neuronal Function and Pathology. Int J Mol Sci 2022; 23:ijms23105847. [PMID: 35628657 PMCID: PMC9148063 DOI: 10.3390/ijms23105847] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 12/13/2022] Open
Abstract
Transposable elements (TEs) have been extensively studied for decades. In recent years, the introduction of whole-genome and whole-transcriptome approaches, as well as single-cell resolution techniques, provided a breakthrough that uncovered TE involvement in host gene expression regulation underlying multiple normal and pathological processes. Of particular interest is increased TE activity in neuronal tissue, and specifically in the hippocampus, that was repeatedly demonstrated in multiple experiments. On the other hand, numerous neuropathologies are associated with TE dysregulation. Here, we provide a comprehensive review of literature about the role of TEs in neurons published over the last three decades. The first chapter of the present review describes known mechanisms of TE interaction with host genomes in general, with the focus on mammalian and human TEs; the second chapter provides examples of TE exaptation in normal neuronal tissue, including TE involvement in neuronal differentiation and plasticity; and the last chapter lists TE-related neuropathologies. We sought to provide specific molecular mechanisms of TE involvement in neuron-specific processes whenever possible; however, in many cases, only phenomenological reports were available. This underscores the importance of further studies in this area.
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8
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Jiang H, Li L, Zhu D, Zhou X, Yu Y, Zhou Q, Sun L. A Review of Nanotechnology for Treating Dysfunctional Placenta. Front Bioeng Biotechnol 2022; 10:845779. [PMID: 35402416 PMCID: PMC8987505 DOI: 10.3389/fbioe.2022.845779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/01/2022] [Indexed: 11/13/2022] Open
Abstract
The placenta plays a significant role during pregnancy. Placental dysfunction contributes to major obstetric complications, such as fetal growth restriction and preeclampsia. Currently, there is no effective treatment for placental dysfunction in the perinatal period, and prophylaxis is often delivered too late, at which point the disease manifestation cannot be prevented. However, with recent integration of nanoscience and medicine to perform elaborate experiments on the human placenta, it is expected that novel and efficient nanotherapies will be developed to resolve the challenge of managing placental dysfunction. The advent of nanomedicine has enabled the safe and targeted delivery of drugs using nanoparticles. These smart nanoparticles can load the necessary therapeutic substances that specifically target the placenta, such as drugs, targeting molecules, and ligands. Packaging multifunctional molecules into specific delivery systems with high targeting ability, diagnosis, and treatment has emerged as a novel theragnostic (both therapeutic and diagnostic) approach. In this review, the authors discuss recent advances in nanotechnology for placental dysfunction treatment. In particular, the authors highlight potential candidate nanoparticle-loaded molecules that target the placenta to improve utero-placental blood flow, and reduce reactive oxygen species and oxidative stress. The authors intend to provide basic insight and understanding of placental dysfunction, potential delivery targets, and recent research on placenta-targeted nanoparticle delivery systems for the potential treatment of placental dysfunction. The authors hope that this review will sensitize the reader for continued exploration of novel nanomedicines.
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Affiliation(s)
- Huabo Jiang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Li Li
- Reproductive Medicine Center, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Zhu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xinyao Zhou
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yongsheng Yu
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Yongsheng Yu, ; Qian Zhou, ; Luming Sun,
| | - Qian Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Yongsheng Yu, ; Qian Zhou, ; Luming Sun,
| | - Luming Sun
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Yongsheng Yu, ; Qian Zhou, ; Luming Sun,
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9
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Mei X, Xu L, Ren Y, Yu M, Kuang L, Li C, Zhang Y, Lu C, Wang Z, Guo Z, Xie X, Huang D, Zhang M. Transcriptome Comparison of Chorion-Attached and Non-chorion-attached Endometrium in Mid-gestation of Rabbit. Front Vet Sci 2022; 9:838802. [PMID: 35372533 PMCID: PMC8965606 DOI: 10.3389/fvets.2022.838802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/04/2022] [Indexed: 11/14/2022] Open
Abstract
Background The chorion from the placenta is directly attached to the endometrium (CA) after embryo implantation while some parts of the endometrium are not chorion-attached (NCA). The differences in gene expression between the CA and NCA endometrium mid-gestation are unknown. Our objective was to compare the gene expression profiles of the CA and NCA endometrium of rabbit, to identify the differentially expressed genes (DEGs), and correlate the differences with the physiological state of the endometrium at mid-gestation of rabbit. Methods We used transcriptome sequencing to reveal the differences in gene expression between CA and NCA endometrium (n = 3), and then determined the concentration of inflammatory cytokines in CA and NCA tissue and serum by ELISA. Results Six Hundred and Forty-Six DEGs were identified between the CA and NCA endometrium [p < 0.05, |log2 (fold change) |≥ 2], The expression levels of 590 DEGs were higher in the NCA endometrium than in the CA endometrium, while the expression level of only 56 DEGs were higher in CA than in NCA. The DEGs were enriched in gene ontology (GO) terms and pathways related to immune regulation and cellular adhesions. Six hub-genes related to inflammatory mediator regulation of transient receptor potential (TRP) channels and chemokine signaling pathways had a lower expression level in the CA endometrium compared to the NCA endometrium, and the expression levels of genes related to focal adhesion and extracellular matrix (ECM)-receptors were significantly higher in NCA endometrium than in CA endometrium. The level of pro-inflammatory cytokines accumulated in the CA endometrium, and high abundance of integrin-β and THBS1 were localized in the luminal epithelium of the NCA endometrium, but not in the CA endometrium. Conclusions Our study reveals differences in gene expression between the CA and NCA endometrium at mid-gestation of rabbit, and suggests implications for endometrial physiological function. The CA endometrium showed relative low-level gene expression compared to the NCA endometrium, while the NCA endometrium performed physiological functions related to focal adhesion and ECM-receptor interaction.
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Affiliation(s)
- Xiuli Mei
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
| | - Ling Xu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yan Ren
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Minjie Yu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Liangde Kuang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
| | - Congyan Li
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
| | - Yan Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Chuanzhi Lu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Zhicheng Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Zhiqiang Guo
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
| | - Xiaohong Xie
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
| | - Dengping Huang
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
- Dengping Huang
| | - Ming Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
- *Correspondence: Ming Zhang
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10
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Sandovici I, Georgopoulou A, Pérez-García V, Hufnagel A, López-Tello J, Lam BYH, Schiefer SN, Gaudreau C, Santos F, Hoelle K, Yeo GSH, Burling K, Reiterer M, Fowden AL, Burton GJ, Branco CM, Sferruzzi-Perri AN, Constância M. The imprinted Igf2-Igf2r axis is critical for matching placental microvasculature expansion to fetal growth. Dev Cell 2022; 57:63-79.e8. [PMID: 34963058 PMCID: PMC8751640 DOI: 10.1016/j.devcel.2021.12.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 09/30/2021] [Accepted: 12/03/2021] [Indexed: 11/21/2022]
Abstract
In all eutherian mammals, growth of the fetus is dependent upon a functional placenta, but whether and how the latter adapts to putative fetal signals is currently unknown. Here, we demonstrate, through fetal, endothelial, hematopoietic, and trophoblast-specific genetic manipulations in the mouse, that endothelial and fetus-derived IGF2 is required for the continuous expansion of the feto-placental microvasculature in late pregnancy. The angiocrine effects of IGF2 on placental microvasculature expansion are mediated, in part, through IGF2R and angiopoietin-Tie2/TEK signaling. Additionally, IGF2 exerts IGF2R-ERK1/2-dependent pro-proliferative and angiogenic effects on primary feto-placental endothelial cells ex vivo. Endothelial and fetus-derived IGF2 also plays an important role in trophoblast morphogenesis, acting through Gcm1 and Synb. Thus, our study reveals a direct role for the imprinted Igf2-Igf2r axis on matching placental development to fetal growth and establishes the principle that hormone-like signals from the fetus play important roles in controlling placental microvasculature and trophoblast morphogenesis.
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Affiliation(s)
- Ionel Sandovici
- Department of Obstetrics and Gynaecology and National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge CB2 0SW, UK; Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge CB2 0QQ, UK; Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK.
| | - Aikaterini Georgopoulou
- Department of Obstetrics and Gynaecology and National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge CB2 0SW, UK; Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Vicente Pérez-García
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; Epigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK; Centro de Investigación Príncipe Felipe, Eduardo Primo Yúfera, 46012 Valencia, Spain
| | - Antonia Hufnagel
- Department of Obstetrics and Gynaecology and National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge CB2 0SW, UK
| | - Jorge López-Tello
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Brian Y H Lam
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Samira N Schiefer
- Department of Obstetrics and Gynaecology and National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge CB2 0SW, UK
| | - Chelsea Gaudreau
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Fátima Santos
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; Epigenetics Programme, Babraham Institute, Cambridge CB22 3AT, UK
| | - Katharina Hoelle
- Department of Obstetrics and Gynaecology and National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge CB2 0SW, UK
| | - Giles S H Yeo
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Keith Burling
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Moritz Reiterer
- Physiological Laboratory, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; Center for Cancer Research and Cell Biology, Queen's University Belfast, Belfast BT9 7AE, UK
| | - Abigail L Fowden
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Graham J Burton
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Cristina M Branco
- Physiological Laboratory, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK; Center for Cancer Research and Cell Biology, Queen's University Belfast, Belfast BT9 7AE, UK
| | - Amanda N Sferruzzi-Perri
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - Miguel Constância
- Department of Obstetrics and Gynaecology and National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge CB2 0SW, UK; Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge CB2 0QQ, UK; Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK.
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11
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Kozlov AP. Mammalian tumor-like organs. 1. The role of tumor-like normal organs and atypical tumor organs in the evolution of development (carcino-evo-devo). Infect Agent Cancer 2022; 17:2. [PMID: 35012580 PMCID: PMC8751115 DOI: 10.1186/s13027-021-00412-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 12/23/2021] [Indexed: 12/24/2022] Open
Abstract
Background Earlier I hypothesized that hereditary tumors might participate in the evolution of multicellular organisms. I formulated the hypothesis of evolution by tumor neofunctionalization, which suggested that the evolutionary role of hereditary tumors might consist in supplying evolving multicellular organisms with extra cell masses for the expression of evolutionarily novel genes and the origin of new cell types, tissues, and organs. A new theory—the carcino-evo-devo theory—has been developed based on this hypothesis. Main text My lab has confirmed several non-trivial predictions of this theory. Another non-trivial prediction is that evolutionarily new organs if they originated from hereditary tumors or tumor-like structures, should recapitulate some tumor features in their development. This paper reviews the tumor-like features of evolutionarily novel organs. It turns out that evolutionarily new organs such as the eutherian placenta, mammary gland, prostate, the infantile human brain, and hoods of goldfishes indeed have many features of tumors. I suggested calling normal organs, which have many tumor features, the tumor-like organs. Conclusion Tumor-like organs might originate from hereditary atypical tumor organs and represent the part of carcino-evo-devo relationships, i.e., coevolution of normal and neoplastic development. During subsequent evolution, tumor-like organs may lose the features of tumors and the high incidence of cancer and become normal organs without (or with almost no) tumor features.
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Affiliation(s)
- A P Kozlov
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 3, Gubkina Street, Moscow, Russia, 117971. .,Peter the Great St. Petersburg Polytechnic University, 29, Polytekhnicheskaya Street, St. Petersburg, Russia, 195251.
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12
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Lestari B, Naito S, Endo A, Nishihara H, Kato A, Watanabe E, Denda K, Komada M, Fukushima T. Placental mammals acquired functional sequences in NRK for regulating the CK2-PTEN-AKT pathway and placental cell proliferation. Mol Biol Evol 2022; 39:6499274. [PMID: 34999820 PMCID: PMC8857918 DOI: 10.1093/molbev/msab371] [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: 11/24/2022] Open
Abstract
The molecular evolution processes underlying the acquisition of the placenta in eutherian ancestors are not fully understood. Mouse NCK-interacting kinase (NIK)-related kinase (NRK) is expressed highly in the placenta and plays a role in preventing placental hyperplasia. Here, we show the molecular evolution of NRK, which confers its function for inhibiting placental cell proliferation. Comparative genome analysis identified NRK orthologs across vertebrates, which share the kinase and citron homology (CNH) domains. Evolutionary analysis revealed that NRK underwent extensive amino acid substitutions in the ancestor of placental mammals and has been since conserved. Biochemical analysis of mouse NRK revealed that the CNH domain binds to phospholipids, and a region in NRK binds to and inhibits casein kinase-2 (CK2), which we named the CK2-inhibitory region (CIR). Cell culture experiments suggest the following: 1) Mouse NRK is localized at the plasma membrane via the CNH domain, where the CIR inhibits CK2. 2) This mitigates CK2-dependent phosphorylation and inhibition of PTEN and 3) leads to the inhibition of AKT signaling and cell proliferation. Nrk deficiency increased phosphorylation levels of PTEN and AKT in mouse placenta, supporting our hypothesis. Unlike mouse NRK, chicken NRK did not bind to phospholipids and CK2, decrease phosphorylation of AKT, or inhibit cell proliferation. Both the CNH domain and CIR have evolved under purifying selection in placental mammals. Taken together, our study suggests that placental mammals acquired the phospholipid-binding CNH domain and CIR in NRK for regulating the CK2–PTEN–AKT pathway and placental cell proliferation.
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Affiliation(s)
- Beni Lestari
- School of Life Science and Technology, Tokyo Institute of Technology, Japan
| | - Satomi Naito
- School of Life Science and Technology, Tokyo Institute of Technology, Japan
| | - Akinori Endo
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Japan
| | - Hidenori Nishihara
- School of Life Science and Technology, Tokyo Institute of Technology, Japan
| | - Akira Kato
- School of Life Science and Technology, Tokyo Institute of Technology, Japan
| | - Erika Watanabe
- School of Life Science and Technology, Tokyo Institute of Technology, Japan
| | - Kimitoshi Denda
- School of Life Science and Technology, Tokyo Institute of Technology, Japan
| | - Masayuki Komada
- School of Life Science and Technology, Tokyo Institute of Technology, Japan.,Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Japan
| | - Toshiaki Fukushima
- School of Life Science and Technology, Tokyo Institute of Technology, Japan.,Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Japan
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13
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Nicolau M, Picault N, Moissiard G. The Evolutionary Volte-Face of Transposable Elements: From Harmful Jumping Genes to Major Drivers of Genetic Innovation. Cells 2021; 10:cells10112952. [PMID: 34831175 PMCID: PMC8616336 DOI: 10.3390/cells10112952] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/20/2021] [Accepted: 10/20/2021] [Indexed: 12/25/2022] Open
Abstract
Transposable elements (TEs) are self-replicating DNA elements that constitute major fractions of eukaryote genomes. Their ability to transpose can modify the genome structure with potentially deleterious effects. To repress TE activity, host cells have developed numerous strategies, including epigenetic pathways, such as DNA methylation or histone modifications. Although TE neo-insertions are mostly deleterious or neutral, they can become advantageous for the host under specific circumstances. The phenomenon leading to the appropriation of TE-derived sequences by the host is known as TE exaptation or co-option. TE exaptation can be of different natures, through the production of coding or non-coding DNA sequences with ultimately an adaptive benefit for the host. In this review, we first give new insights into the silencing pathways controlling TE activity. We then discuss a model to explain how, under specific environmental conditions, TEs are unleashed, leading to a TE burst and neo-insertions, with potential benefits for the host. Finally, we review our current knowledge of coding and non-coding TE exaptation by providing several examples in various organisms and describing a method to identify TE co-option events.
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Affiliation(s)
- Melody Nicolau
- LGDP-UMR5096, CNRS, 66860 Perpignan, France; (M.N.); (N.P.)
- LGDP-UMR5096, Université de Perpignan Via Domitia, 66860 Perpignan, France
| | - Nathalie Picault
- LGDP-UMR5096, CNRS, 66860 Perpignan, France; (M.N.); (N.P.)
- LGDP-UMR5096, Université de Perpignan Via Domitia, 66860 Perpignan, France
| | - Guillaume Moissiard
- LGDP-UMR5096, CNRS, 66860 Perpignan, France; (M.N.); (N.P.)
- LGDP-UMR5096, Université de Perpignan Via Domitia, 66860 Perpignan, France
- Correspondence:
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14
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Sun MA, Wolf G, Wang Y, Senft AD, Ralls S, Jin J, Dunn-Fletcher CE, Muglia LJ, Macfarlan TS. Endogenous retroviruses drive lineage-specific regulatory evolution across primate and rodent placentae. Mol Biol Evol 2021; 38:4992-5004. [PMID: 34320657 DOI: 10.1093/molbev/msab223] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In mammals, the placenta mediates maternal-fetal nutrient and waste exchange and acts in an immunomodulatory way to facilitate maternal-fetal tolerance. The placenta is highly diverse across mammalian species, yet the molecular mechanisms that distinguish the placenta of human from other mammals are not fully understood. Using an interspecies transcriptomic comparison of human, macaque, and mouse late-gestation placentae, we identified hundreds of genes with lineage-specific expression-including dozens that are placentally-enriched and potentially related to pregnancy. We further annotated the enhancers for different human tissues using epigenomic data and demonstrate that the placenta and chorion are unique in that their enhancers display the least conservation. We identified numerous lineage-specific human placental enhancers and found they highly overlap with specific families of endogenous retroviruses (ERVs), including MER21A, MER41A/B and MER39B that were previously linked to immune response and placental function. Among these ERV families, we further demonstrate that MER41A/B insertions create dozens of lineage-specific Serum Response Factor (SRF) binding loci in human, including one adjacent to FBN2, a placenta-specific gene with increased expression in humans that produces the peptide hormone placensin to stimulate glucose secretion and trophoblast invasion. Overall, our results demonstrate the prevalence of lineage-specific placental enhancers which are frequently associated with ERV insertions and likely facilitate the lineage-specific evolution of the mammalian placenta.
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Affiliation(s)
- Ming-An Sun
- The Eunice Kennedy Shriver National Institutes of Child Health and Human Development, NIH, Bethesda, MD, 20892, USA.,Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
| | - Gernot Wolf
- The Eunice Kennedy Shriver National Institutes of Child Health and Human Development, NIH, Bethesda, MD, 20892, USA
| | - Yejun Wang
- School of Basic Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Anna D Senft
- The Eunice Kennedy Shriver National Institutes of Child Health and Human Development, NIH, Bethesda, MD, 20892, USA
| | - Sherry Ralls
- The Eunice Kennedy Shriver National Institutes of Child Health and Human Development, NIH, Bethesda, MD, 20892, USA
| | - Jinpu Jin
- The Eunice Kennedy Shriver National Institutes of Child Health and Human Development, NIH, Bethesda, MD, 20892, USA
| | - Caitlin E Dunn-Fletcher
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Physician-Scientist Training Program in Pediatrics, Department of Pediatrics, University of Texas Southwestern, Dallas, Texas, USA
| | - Louis J Muglia
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Burroughs Wellcome Fund, Research Triangle Park, NC, 27709, USA
| | - Todd S Macfarlan
- The Eunice Kennedy Shriver National Institutes of Child Health and Human Development, NIH, Bethesda, MD, 20892, USA
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15
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Adibi JJ, Layden AJ, Birru RL, Miragaia A, Xun X, Smith MC, Yin Q, Millenson ME, O’Connor TG, Barrett ES, Snyder NW, Peddada S, Mitchell RT. First trimester mechanisms of gestational sac placental and foetal teratogenicity: a framework for birth cohort studies. Hum Reprod Update 2021; 27:747-770. [PMID: 33675653 PMCID: PMC8222765 DOI: 10.1093/humupd/dmaa063] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/18/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The function of the gestational sac (GS) and the placenta in the closely related processes of embryogenesis and teratogenicity in the first trimester has been minimally described. The prevailing assumption is that direct teratogenic effects are mediated by the critical extraembryonic organ, the placenta, which either blocks or transfers exposures to the foetus. Placental transfer is a dominant mechanism, but there are other paradigms by which the placenta can mediate teratogenic effects. Knowledge of these paradigms and first trimester human developmental biology can be useful to the epidemiologist in the conduct of biomarker-based studies of both maternal and child health. OBJECTIVE AND RATIONALE Our aim is to provide a causal framework for modelling the teratogenic effects of first trimester exposures on child health outcomes mediated by the GS and placenta using biomarker data collected in the first trimester. We initially present first trimester human developmental biology for the sake of informing and strengthening epidemiologic approaches. We then propose analytic approaches of modelling placental mechanisms by way of causal diagrams using classical non-embryolethal teratogens (diethylstilboestrol [DES], folic acid deficiency and cytomegalovirus [CMV]) as illustrative examples. We extend this framework to two chronic exposures of particular current interest, phthalates and maternal adiposity. SEARCH METHODS Information on teratogens was identified by a non-systematic, narrative review. For each teratogen, we included papers that answered the five following questions: (i) why were these exposures declared teratogens? (ii) is there a consensus on biologic mechanism? (iii) is there reported evidence of a placental mechanism? (iv) can we construct a theoretical model of a placental mechanism? and (v) can this knowledge inform future work on measurement and modelling of placental-foetal teratogenesis? We prioritized literature specific to human development, the organogenesis window in the first trimester and non-embryolethal mechanisms. OUTCOMES As a result of our review of the literature on five exposures considered harmful in the first trimester, we developed four analytic strategies to address first trimester placental mechanisms in birth cohort studies: placental transfer and direct effects on the foetus (DES and maternal adiposity), indirect effects through targeted placental molecular pathways (DES and phthalates), pre-placental effects through disruptions in embryonic and extraembryonic tissue layer differentiation (folic acid deficiency), and multi-step mechanisms that involve maternal, placental and foetal immune function and inflammation (DES and CMV). WIDER IMPLICATIONS The significance of this review is to offer a causal approach to classify the large number of potentially harmful exposures in pregnancy when the exposure occurs in the first trimester. Our review will facilitate future research by advancing knowledge of the first trimester mechanisms necessary for researchers to effectively associate environmental exposures with child health outcomes.
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Affiliation(s)
- Jennifer J Adibi
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alexander J Layden
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rahel L Birru
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alexandra Miragaia
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xiaoshuang Xun
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Megan C Smith
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Qing Yin
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Thomas G O’Connor
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, USA
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, USA
| | - Emily S Barrett
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, USA
| | - Nathaniel W Snyder
- Department of Microbiology and Immunology, Center for Metabolic Disease Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Shyamal Peddada
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rod T Mitchell
- MRC Centre for Reproductive Health, The University of Edinburgh, Queens Medical Research Institute, Edinburgh, UK
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16
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Mahmoudi AR, Ghods R, Madjd Z, Abolhasani M, Saeednejad Zanjani L, Safaei M, Balaei Goli L, Vafaei S, Katouzian L, Soltanghoraei H, Shekarabi M, Zarnani AH. Expression profiling of RTL1 in human breast cancer tissues and cell lines. Exp Mol Pathol 2021; 121:104654. [PMID: 34087231 DOI: 10.1016/j.yexmp.2021.104654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 04/18/2021] [Accepted: 05/21/2021] [Indexed: 12/24/2022]
Abstract
Breast cancer (BC) is the most common cancer in females. In this regard, the identification of molecular alterations driving BC is an immediate need for developing effective immunotherapeutic tools. Here we investigated the expression of a placenta-specific protein, Retrotransposon-like 1 (RTL1) in a series of BC tissues and cell lines. RTL1-specific polyclonal antibody was generated and characterized. Using tissue microarray immunohistochemistry, expression of RTL1 in a total of 147 BC and 36 non-malignant breast tissues was investigated and the association of patient's clinicopathological parameters with RTL1 expression was then examined. Expression of RTL1 in four BC cells was assessed by flow cytometry, immunofluorescent staining and Western blotting. We observed a mixture pattern of nuclear and cytoplasmic RTL1 expression in most tissues examined, however nuclear expression was found to be dominant pattern of expression. The level of nuclear RTL1 expression was significantly higher in BC tissues (P < 0.001). A statistically significant association between nuclear RTL1 expression and histological grade and vascular invasion was found (P < 0.001 and P < 0.05). All cell lines expressed RTL1 with varying degrees at their surface. The most invasive BC cell line MDA-MB-231, compared to T-47D, SKBR3 and MCF7 expressed higher levels of RTL1 at their surface. Cells with a low level of surface expression, expressed high levels of intracellular RTL1 expression. Our antibody reacted with a specific band of about 125 KD in normal human placenta and all cell lines examined. In contrast to placenta, two additional bands were also observed in cancer cell lines. Our results showed for the first time that RTL1 is differentially expressed in BC compared to non-malignant breast tissues and is associated with a higher grade and vascular invasion. In BC cells with high metastatic and invasive potential, this antigen is mostly confined to cell surface compartment indicating the possibility of using antibody-based immunotherapy for advanced metastatic BC patients.
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Affiliation(s)
- Ahmad-Reza Mahmoudi
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran; Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Roya Ghods
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Madjd
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Abolhasani
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran; Hasheminejad Kidney Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Masoomeh Safaei
- Department of Pathology, Cancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Balaei Goli
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Sedigheh Vafaei
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Leila Katouzian
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Haleh Soltanghoraei
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Mehdi Shekarabi
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Amir-Hassan Zarnani
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran; Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran; Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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17
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Sohn JH, Yamane S, Saitoh Y, Kusakabe KT, Kimura J, Kiso Y. Morphology of placentome in Korean water deer Hydropotes inermis argropus. J Vet Med Sci 2021; 83:1081-1085. [PMID: 33967187 PMCID: PMC8349818 DOI: 10.1292/jvms.21-0158] [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: 11/22/2022] Open
Abstract
The placenta of the Korean water deer was anatomically examined to accumulate basic information regarding its reproductive system. The convex placentomes with five
to nine well-developed pedicles were observed in the whole uterine horns, and therefore, the placenta was classified as oligocotyledonary. The evidence indicating
the migration of binucleate cells (BNCs) from trophectoderm to the uterine epithelium led to the histological classification of the placenta as synepitheliochorial.
The number of fetuses was markedly higher than that in other ruminant species. However, the number of placentomes was found to be similar to the other Cervidae
species. Therefore, these results suggest that the Korean water deer may possess special mechanisms or structures at the fetus attachment site to maintain this
unusally high number of fetuses.
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Affiliation(s)
- Joon Hyuk Sohn
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Seoul National University, 1 Gwangno, Gwanak-gu, Seoul 151-742, Korea
| | - Shota Yamane
- Laboratory of Veterinary Anatomy, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Yukiko Saitoh
- Laboratory of Veterinary Anatomy, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Ken Takashi Kusakabe
- Laboratory of Veterinary Anatomy, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Junpei Kimura
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Seoul National University, 1 Gwangno, Gwanak-gu, Seoul 151-742, Korea
| | - Yasuo Kiso
- Laboratory of Veterinary Anatomy, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
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18
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Oliveira MDMS, Salgado CDM, Viana LR, Gomes-Marcondes MCC. Pregnancy and Cancer: Cellular Biology and Mechanisms Affecting the Placenta. Cancers (Basel) 2021; 13:1667. [PMID: 33916290 PMCID: PMC8037654 DOI: 10.3390/cancers13071667] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
Cancer during pregnancy is rarely studied due to its low incidence (1:1000). However, as a result of different sociocultural and economic changes, women are postponing pregnancy, so the number of pregnant women with cancer has been increasing in recent years. The importance of studying cancer during pregnancy is not only based on maternal and foetal prognosis, but also on the evolutionary mechanisms of the cell biology of trophoblasts and neoplastic cells, which point out similarities between and suggest new fields for the study of cancer. Moreover, the magnitude of how cancer factors can affect trophoblastic cells, and vice versa, in altering the foetus's nutrition and health is still a subject to be understood. In this context, the objective of this narrative review was to show that some researchers point out the importance of supplementing branched-chain amino acids, especially leucine, in experimental models of pregnancy associated with women with cancer. A leucine-rich diet may be an interesting strategy to preserve physiological placenta metabolism for protecting the mother and foetus from the harmful effects of cancer during pregnancy.
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Affiliation(s)
| | | | - Lais Rosa Viana
- Nutrition and Cancer Laboratory, Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Sao Paulo 13083-862, Brazil; (M.d.M.S.O.); (C.d.M.S.)
| | - Maria Cristina Cintra Gomes-Marcondes
- Nutrition and Cancer Laboratory, Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Sao Paulo 13083-862, Brazil; (M.d.M.S.O.); (C.d.M.S.)
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19
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Wang M, Xu Y, Wang P, Xu Y, Jin P, Wu Z, Qian Y, Bai L, Dong M. Galectin-14 Promotes Trophoblast Migration and Invasion by Upregulating the Expression of MMP-9 and N-Cadherin. Front Cell Dev Biol 2021; 9:645658. [PMID: 33796532 PMCID: PMC8007908 DOI: 10.3389/fcell.2021.645658] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/16/2021] [Indexed: 01/05/2023] Open
Abstract
Galectin-14 is specifically expressed in placental trophoblasts, and its expression is reduced in trophoblasts retrieved from the cervix of women destined to develop early pregnancy loss. However, the roles of galectin-14 in regulating trophoblasts and in the pathogenesis of pregnancy complication have never been investigated. In the current research, we aimed to investigate the roles of galectin-14 in the regulation of trophoblasts. Tissues of the placenta and villi were collected. Primary trophoblasts and human trophoblast cell line HTR-8/SVneo were used. Western blotting and RT-PCR were used to quantify gene expression. The siRNA-mediated galectin-14 knockdown and lentivirus-mediated overexpression were performed to manipulate the gene expression in trophoblasts. Transwell migration and invasion assays were used to evaluate cell migration and invasion capacity. Gelatin zymography was used to determine the gelatinase activity. Galectin-14 was significantly decreased in the villi of early pregnancy loss and the placenta of preeclampsia. Knockdown of galectin-14 in primary trophoblasts inhibited cell migration and invasion, downregulated the expression of matrix metalloproteinase (MMP)-9 and N-cadherin, the activity of MMP-9, and decreased the phosphorylation of Akt. Meanwhile, the overexpression of galectin-14 in HTR-8/SVneo promoted cell migration and invasion, upregulated the expression of MMP-9 and N-cadherin, the activity of MMP-9, and increased the phosphorylation of Akt. Increased Akt phosphorylation promoted cell migration and invasion and upregulated the expression and activity of MMP-9, while decreased Akt phosphorylation inhibited cell migration and invasion and downregulated the expression and activity of MMP-9. Thus, galectin-14 promotes trophoblast migration and invasion by enhancing the expression of MMP-9 and N-cadherin through Akt phosphorylation. The dysregulation of galectin-14 is involved in the pathogenesis of early pregnancy loss and preeclampsia.
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Affiliation(s)
- Miaomiao Wang
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yuqing Xu
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Peng Wang
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yanfei Xu
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Pengzhen Jin
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zaigui Wu
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yeqing Qian
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, China.,Key Laboratory of Reproductive Genetics, Ministry of Education, Zhejiang University, Hangzhou, China
| | - Long Bai
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, China
| | - Minyue Dong
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, China.,Key Laboratory of Reproductive Genetics, Ministry of Education, Zhejiang University, Hangzhou, China
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20
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Antczak DF, Allen WRT. Placentation in Equids. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2021; 234:91-128. [PMID: 34694479 DOI: 10.1007/978-3-030-77360-1_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This chapter focuses on the early stages of placental development in horses and their relatives in the genus Equus and highlights unique features of equid reproductive biology. The equine placenta is classified as a noninvasive, epitheliochorial type. However, equids have evolved a minor component of invasive trophoblast, the chorionic girdle and endometrial cups, which links the equine placenta with the highly invasive hemochorial placentae of rodents and, particularly, with the primate placenta. Two types of fetus-to-mother signaling in equine pregnancy are mediated by the invasive equine trophoblast cells. First, endocrinological signaling mediated by equine chorionic gonadotrophin (eCG) drives maternal progesterone production to support the equine conceptus between days 40 and 100 of gestation. Only in primates and equids does the placenta produce a gonadotrophin, but the evolutionary paths taken by these two groups of mammals to produce this placental signal were very different. Second, florid expression of paternal major histocompatibility complex (MHC) class I molecules by invading chorionic girdle cells stimulates strong maternal anti-fetal antibody responses that may play a role in the development of immunological tolerance that protects the conceptus from destruction by the maternal immune system. In humans, invasive extravillous trophoblasts also express MHC class I molecules, but the loci involved, and their likely function, are different from those of the horse. Comparison of the cellular and molecular events in these disparate species provides outstanding examples of convergent evolution and co-option in mammalian pregnancy and highlights how studies of the equine placenta have produced new insights into reproductive strategies.
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Affiliation(s)
- Douglas F Antczak
- Department of Microbiology and Immunology, College of Veterinary Medicine, Baker Institute for Animal Health, Cornell University, Ithaca, NY, USA.
| | - W R Twink Allen
- Sharjah Equine Hospital, Sharjah, United Arab Emirates
- Robinson College, University of Cambridge, Cambridge, UK
- The Paul Mellon Laboratory of Equine Reproduction, 'Brunswick', Newmarket, Suffolk, UK
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21
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Pan CT, Lin YS. MicroRNA retrocopies generated via L1-mediated retrotransposition in placental mammals help to reveal how their parental genes were transcribed. Sci Rep 2020; 10:20612. [PMID: 33244051 PMCID: PMC7692494 DOI: 10.1038/s41598-020-77381-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 11/10/2020] [Indexed: 02/07/2023] Open
Abstract
In mammalian genomes, most retrocopies emerged via the L1 retrotransposition machinery. The hallmarks of an L1-mediated retrocopy, i.e., the intronlessness, the presence of a 3′ poly-A tail, and the TSDs at both ends, were frequently used to identify retrotransposition events. However, most previous studies only focused on protein-coding genes as their possible parental sources and thus only a few retrocopies derived from non-coding genes were reported. Remarkably, none of them was from microRNAs. Here in this study, we found several retrocopies generated from the mir-302–367 cluster gene (MIR302CHG), and identified a novel alternatively spliced exon encoding mir-302a. The other recognized microRNA retrotransposition events are primate-specific with mir-373 and mir-498 as their parental genes. The 3′ poly-A tracts of these two retrocopy groups were directly attached to the end of the microRNA precursor homologous regions, which suggests that their parental transcripts might alternatively terminate at the end of mir-373 and mir-498. All the three parental microRNAs are highly expressed in specific tissues with elevated retrotransposon activity, such as the embryonic stem cells and the placenta. This might be the reason that our first microRNA retrocopy findings were derived from these three microRNA genes.
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Affiliation(s)
- Cheng-Tsung Pan
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, 300, Taiwan
| | - Yeong-Shin Lin
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, 300, Taiwan. .,Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, Hsinchu, 300, Taiwan. .,Center For Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao Tung University, Hsinchu, 300, Taiwan.
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El-Sheikh Ali H, Scoggin K, Linhares Boakari Y, Dini P, Loux S, Fedorka C, Esteller-Vico A, Ball B. Kinetics of placenta-specific 8 (PLAC8) in equine placenta during pregnancy and placentitis. Theriogenology 2020; 160:81-89. [PMID: 33189077 DOI: 10.1016/j.theriogenology.2020.10.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/14/2020] [Accepted: 10/26/2020] [Indexed: 01/07/2023]
Abstract
Placenta-specific 8 (PLAC8) is one of the placenta-regulatory genes which is highly conserved among eutherian mammals. However, little is known about its expression in equine placenta (chorioallantois; CA and endometrium; EN) during normal and abnormal pregnancy. Therefore, the current study was designed to 1) elucidate the expression of PLAC8 in equine embryonic membranes during the preimplantation period, 2) characterize the expression profile of PLAC8 in equine CA (45d, 4mo, 6mo, 10 mo, 11 mo and postpartum) and EN (14d, 4mo, 6mo, 10 mo, and 11 mo) obtained from pregnant mares (n = 4/timepoint), as well as, d14 non-pregnant EN (n = 4), and 3) investigate the expression profile of PLAC8 in ascending placentitis (n = 5) and in nocardioform placentitis (n = 6) in comparison to normal CA. In the preimplantation period, PLAC8 mRNA was not abundant in the trophectoderm of d8 equine embryo and d14 conceptus, while it was abundant later in d 30, 31, 34, and 45 chorion. In normal pregnancy, PLAC8 mRNA expression in CA at 45 d gradually decline to reach nadir at 6mo before gradually increasing to its peak at 11mo and postpartum CA. The mRNA expression of PLAC8 was significantly upregulated in CA from mares with ascending and nocardioform placentitis compared to control mares. Immunohistochemistry revealed that PLAC8 is localized in equine chorionic epithelium and immune cells. Our results revealed that PLAC8 expression in equine chorion is dynamic during pregnancy and is regulated in an implantation-dependent manner. Moreover, PLAC8 is implicated in the immune response in CA during equine ascending placentitis and nocardioform placentitis.
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Affiliation(s)
- Hossam El-Sheikh Ali
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA; Theriogenology Department, Faculty of Veterinary Medicine, Mansoura University, 35516, Egypt
| | - Kirsten Scoggin
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Yatta Linhares Boakari
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA; Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, AL, 36849, USA
| | - Pouya Dini
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA; Faculty of Veterinary Medicine, Ghent University, Merelbeke, B-9820, Belgium
| | - Shavahn Loux
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Carleigh Fedorka
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA
| | - Alejandro Esteller-Vico
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, 37996, USA
| | - Barry Ball
- Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY, 40546, USA.
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23
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Shibata S, Kobayashi EH, Kobayashi N, Oike A, Okae H, Arima T. Unique features and emerging in vitro models of human placental development. Reprod Med Biol 2020; 19:301-313. [PMID: 33071632 PMCID: PMC7542016 DOI: 10.1002/rmb2.12347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 12/13/2022] Open
Abstract
Background The placenta is an essential organ for the normal development of mammalian fetuses. Most of our knowledge on the molecular mechanisms of placental development has come from the analyses of mice, especially histopathological examination of knockout mice. Choriocarcinoma and immortalized cell lines have also been used for basic research on the human placenta. However, these cells are quite different from normal trophoblast cells. Methods In this review, we first provide an overview of mouse and human placental development with particular focus on the differences in the anatomy, transcription factor networks, and epigenetic characteristics between these species. Next, we discuss pregnancy complications associated with abnormal placentation. Finally, we introduce emerging in vitro models to study the human placenta, including human trophoblast stem (TS) cells, trophoblast and endometrium organoids, and artificial embryos. Main findings The placental structure and development differ greatly between humans and mice. The recent establishment of human TS cells and trophoblast and endometrial organoids enhances our understanding of the mechanisms underlying human placental development. Conclusion These in vitro models will greatly advance our understanding of human placental development and potentially contribute to the elucidation of the causes of infertility and other pregnancy complications.
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Affiliation(s)
- Shun Shibata
- Department of Informative Genetics Tohoku University Graduate School of Medicine Sendai Japan
| | - Eri H Kobayashi
- Department of Informative Genetics Tohoku University Graduate School of Medicine Sendai Japan
| | - Norio Kobayashi
- Department of Informative Genetics Tohoku University Graduate School of Medicine Sendai Japan
| | - Akira Oike
- Department of Informative Genetics Tohoku University Graduate School of Medicine Sendai Japan
| | - Hiroaki Okae
- Department of Informative Genetics Tohoku University Graduate School of Medicine Sendai Japan
| | - Takahiro Arima
- Department of Informative Genetics Tohoku University Graduate School of Medicine Sendai Japan
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24
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Lynch-Sutherland CF, Chatterjee A, Stockwell PA, Eccles MR, Macaulay EC. Reawakening the Developmental Origins of Cancer Through Transposable Elements. Front Oncol 2020; 10:468. [PMID: 32432029 PMCID: PMC7214541 DOI: 10.3389/fonc.2020.00468] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/16/2020] [Indexed: 12/12/2022] Open
Abstract
Transposable elements (TEs) have an established role as important regulators of early human development, functioning as tissue-specific genes and regulatory elements. Functional TEs are highly active during early development, and interact with important developmental genes, some of which also function as oncogenes. Dedifferentiation is a hallmark of cancer, and is characterized by genetic and epigenetic changes that enable proliferation, self-renewal and a metabolism reminiscent of embryonic stem cells. There is also compelling evidence suggesting that the path to dedifferentiation in cancer can contribute to invasion and metastasis. TEs are frequently expressed in cancer, and recent work has identified a newly proposed mechanism involving extensive recruitment of TE-derived promoters to drive expression of oncogenes and subsequently promote oncogenesis—a process termed onco-exaptation. However, the mechanism by which this phenomenon occurs, and the extent to which it contributes to oncogenesis remains unknown. Initial hypotheses have proposed that onco-exaptation events are cancer-specific and arise randomly due to the dysregulated and hypomethylated state of cancer cells and abundance of TEs across the genome. However, we suspect that exaptation-like events may not just arise due to chance activation of novel regulatory relationships as proposed previously, but as a result of the reestablishment of early developmental regulatory relationships. Dedifferentiation in cancer is well-documented, along with expression of TEs. The known interactions between TEs and pluripotency factors such as NANOG and OCTt4 during early development, along with the expression of some placental-specific TE-derived transcripts in cancer support a possible link between TEs and dedifferentiation of tumor cells. Thus, we hypothesize that onco-exaptation events can be associated with the epigenetic reawakening of early developmental TEs to regulate expression of oncogenes and promote oncogenesis. We also suspect that activation of these early developmental regulatory TEs may promote dedifferentiation, although at this stage it is hard to predict whether TE activation is one of the initial drivers of dedifferentiation. We expect that developmental TE activation occurs as a result of the establishment of an epigenetic landscape in cancer that resembles that of early development and that developmental TE activation may also enable cancers to exploit early developmental pathways, repurposing them to promote malignancy.
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Affiliation(s)
| | - Aniruddha Chatterjee
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | - Peter A Stockwell
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Michael R Eccles
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | - Erin C Macaulay
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
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25
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Szilagyi A, Gelencser Z, Romero R, Xu Y, Kiraly P, Demeter A, Palhalmi J, Gyorffy BA, Juhasz K, Hupuczi P, Kekesi KA, Meinhardt G, Papp Z, Draghici S, Erez O, Tarca AL, Knöfler M, Than NG. Placenta-Specific Genes, Their Regulation During Villous Trophoblast Differentiation and Dysregulation in Preterm Preeclampsia. Int J Mol Sci 2020; 21:ijms21020628. [PMID: 31963593 PMCID: PMC7013556 DOI: 10.3390/ijms21020628] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/15/2022] Open
Abstract
The human placenta maintains pregnancy and supports the developing fetus by providing nutrition, gas-waste exchange, hormonal regulation, and an immunological barrier from the maternal immune system. The villous syncytiotrophoblast carries most of these functions and provides the interface between the maternal and fetal circulatory systems. The syncytiotrophoblast is generated by the biochemical and morphological differentiation of underlying cytotrophoblast progenitor cells. The dysfunction of the villous trophoblast development is implicated in placenta-mediated pregnancy complications. Herein, we describe gene modules and clusters involved in the dynamic differentiation of villous cytotrophoblasts into the syncytiotrophoblast. During this process, the immune defense functions are first established, followed by structural and metabolic changes, and then by peptide hormone synthesis. We describe key transcription regulatory molecules that regulate gene modules involved in placental functions. Based on transcriptomic evidence, we infer how villous trophoblast differentiation and functions are dysregulated in preterm preeclampsia, a life-threatening placenta-mediated obstetrical syndrome for the mother and fetus. In the conclusion, we uncover the blueprint for villous trophoblast development and its impairment in preterm preeclampsia, which may aid in the future development of non-invasive biomarkers for placental functions and early identification of women at risk for preterm preeclampsia as well as other placenta-mediated pregnancy complications.
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Affiliation(s)
- Andras Szilagyi
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Zsolt Gelencser
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI 48824, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Detroit Medical Center, Detroit, MI 48201, USA
- Department of Obstetrics and Gynecology, Florida International University, Miami, FL 33199, USA
| | - Yi Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Peter Kiraly
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Amanda Demeter
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Janos Palhalmi
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Balazs A. Gyorffy
- Laboratory of Proteomics, Institute of Biology, Eotvos Lorand University, H-1117 Budapest, Hungary; (B.A.G.); (K.A.K.)
| | - Kata Juhasz
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
| | - Petronella Hupuczi
- Maternity Private Clinic of Obstetrics and Gynecology, H-1126 Budapest, Hungary; (P.H.); (Z.P.)
| | - Katalin Adrienna Kekesi
- Laboratory of Proteomics, Institute of Biology, Eotvos Lorand University, H-1117 Budapest, Hungary; (B.A.G.); (K.A.K.)
- Department of Physiology and Neurobiology, Eotvos Lorand University, H-1117 Budapest, Hungary
| | - Gudrun Meinhardt
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna A-1090, Austria; (G.M.); (M.K.)
| | - Zoltan Papp
- Maternity Private Clinic of Obstetrics and Gynecology, H-1126 Budapest, Hungary; (P.H.); (Z.P.)
- Department of Obstetrics and Gynecology, Semmelweis University, H-1088 Budapest, Hungary
| | - Sorin Draghici
- Department of Computer Science, Wayne State University College of Engineering, Detroit, MI 48202, USA;
| | - Offer Erez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Adi Laurentiu Tarca
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Martin Knöfler
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna A-1090, Austria; (G.M.); (M.K.)
| | - Nandor Gabor Than
- Systems Biology of Reproduction Lendulet Group, Institute of Enzymology, Research Centre for Natural Sciences, H-1117 Budapest, Hungary; (A.S.); (Z.G.); (P.K.); (A.D.); (J.P.); (K.J.)
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD 20692, and Detroit, MI 48201, USA; (R.R.); (Y.X.); (O.E.); (A.L.T.)
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Maternity Private Clinic of Obstetrics and Gynecology, H-1126 Budapest, Hungary; (P.H.); (Z.P.)
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, H-1085 Budapest, Hungary
- Correspondence: ; Tel.: +36-1-382-6788
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Arévalo L, Campbell P. Placental effects on the maternal brain revealed by disrupted placental gene expression in mouse hybrids. Proc Biol Sci 2020; 287:20192563. [PMID: 31937228 PMCID: PMC7003458 DOI: 10.1098/rspb.2019.2563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/11/2019] [Indexed: 12/11/2022] Open
Abstract
The mammalian placenta is both the physical interface between mother and fetus, and the source of endocrine signals that target the maternal hypothalamus, priming females for parturition, lactation and motherhood. Despite the importance of this connection, the effects of altered placental signalling on the maternal brain are insufficiently studied. Here, we show that placental dysfunction alters gene expression in the maternal brain, with the potential to affect maternal behaviour. Using a cross between the house mouse and the Algerian mouse, in which hybrid placental development is abnormal, we sequenced late-gestation placental and maternal medial preoptic area transcriptomes and quantified differential expression and placenta-maternal brain co-expression between normal and hybrid pregnancies. The expression of Fmn1 and Drd3 was significantly altered in the brains of females exposed to hybrid placentas. Most strikingly, expression patterns of placenta-specific gene families and Drd3 in the brains of house mouse females carrying hybrid litters matched those of female Algerian mice, the paternal species in the cross. Our results indicate that the paternally derived placental genome can influence the expression of maternal-fetal communication genes, including placental hormones, suggesting an effect of the offspring's father on the mother's brain.
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27
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Eaton M, Davies AH, Devine J, Zhao X, Simmons DG, Maríusdóttir E, Natale DRC, Matyas JR, Bering EA, Workentine ML, Hallgrimsson B, Cross JC. Complex patterns of cell growth in the placenta in normal pregnancy and as adaptations to maternal diet restriction. PLoS One 2020; 15:e0226735. [PMID: 31917811 PMCID: PMC6952106 DOI: 10.1371/journal.pone.0226735] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 12/03/2019] [Indexed: 02/06/2023] Open
Abstract
The major milestones in mouse placental development are well described, but our understanding is limited to how the placenta can adapt to damage or changes in the environment. By using stereology and expression of cell cycle markers, we found that the placenta grows under normal conditions not just by hyperplasia of trophoblast cells but also through extensive polyploidy and cell hypertrophy. In response to feeding a low protein diet to mothers prior to and during pregnancy, to mimic chronic malnutrition, we found that this normal program was altered and that it was influenced by the sex of the conceptus. Male fetuses showed intrauterine growth restriction (IUGR) by embryonic day (E) 18.5, just before term, whereas female fetuses showed IUGR as early as E16.5. This difference was correlated with differences in the size of the labyrinth layer of the placenta, the site of nutrient and gas exchange. Functional changes were implied based on up-regulation of nutrient transporter genes. The junctional zone was also affected, with a reduction in both glycogen trophoblast and spongiotrophoblast cells. These changes were associated with increased expression of Phlda2 and reduced expression of Egfr. Polyploidy, which results from endoreduplication, is a normal feature of trophoblast giant cells (TGC) but also spongiotrophoblast cells. Ploidy was increased in sinusoidal-TGCs and spongiotrophoblast cells, but not parietal-TGCs, in low protein placentas. These results indicate that the placenta undergoes a range of changes in development and function in response to poor maternal diet, many of which we interpret are aimed at mitigating the impacts on fetal and maternal health.
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Affiliation(s)
- Malcolm Eaton
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary Alberta
| | - Alastair H. Davies
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
| | - Jay Devine
- Department of Anatomy and Cell Biology, Cumming School of Medicine, University of Calgary, Calgary Alberta
| | - Xiang Zhao
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary Alberta
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
| | - David G. Simmons
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
| | - Elín Maríusdóttir
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
| | - David R. C. Natale
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
| | - John R. Matyas
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
| | - Elizabeth A. Bering
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary Alberta
| | | | - Benedikt Hallgrimsson
- Department of Anatomy and Cell Biology, Cumming School of Medicine, University of Calgary, Calgary Alberta
| | - James C. Cross
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary Alberta
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary Alberta
- * E-mail:
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28
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Adams AD, Guedj F, Bianchi DW. Placental development and function in trisomy 21 and mouse models of Down syndrome: Clues for studying mechanisms underlying atypical development. Placenta 2020; 89:58-66. [PMID: 31683073 PMCID: PMC10040210 DOI: 10.1016/j.placenta.2019.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/30/2019] [Accepted: 10/04/2019] [Indexed: 12/17/2022]
Abstract
Down syndrome (DS) is the most common genetic disorder leading to developmental disability. The phenotypes associated with DS are complex and vary between affected individuals. Placental abnormalities in DS include differences in cytotrophoblast fusion that affect subsequent conversion to syncytiotrophoblast, atypical oxidative stress/antioxidant balance, and increased expression of genes that are also upregulated in the brains of individuals with Alzheimer's disease. Placentas in DS are prematurely senescent, showing atypical evidence of mineralization. Fetuses with DS are especially susceptible to adverse obstetric outcomes, including early in utero demise, stillbirth and growth restriction, all of which are related to placental function. The placenta, therefore, may provide key insights towards understanding the phenotypic variability observed in individuals with DS and aid in identifying biomarkers that can be used to evaluate phenotypic severity and prenatal treatments in real time. To address these issues, many different mouse models of DS have been generated to identify the mechanisms underlying developmental changes in many organ systems. Little is known, however, regarding placental development in the currently available mouse models of DS. Based upon the relative paucity of data on placental development in preclinical mouse models of DS, we recommend that future evaluation of new and existing models routinely include histologic and functional assessments of the placenta. In this paper we summarize studies performed in the placentas of both humans and mouse models with DS, highlighting gaps in knowledge and suggesting directions for future research.
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Affiliation(s)
- April D Adams
- Medical Genetics Branch (Prenatal Genomics and Therapy Section), National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Faycal Guedj
- Medical Genetics Branch (Prenatal Genomics and Therapy Section), National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Diana W Bianchi
- Medical Genetics Branch (Prenatal Genomics and Therapy Section), National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA; Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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29
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Lv B, An Q, Zeng Q, Zhang X, Lu P, Wang Y, Zhu X, Ji Y, Fan G, Xue Z. Single-cell RNA sequencing reveals regulatory mechanism for trophoblast cell-fate divergence in human peri-implantation conceptuses. PLoS Biol 2019; 17:e3000187. [PMID: 31596842 PMCID: PMC6802852 DOI: 10.1371/journal.pbio.3000187] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 10/21/2019] [Accepted: 09/12/2019] [Indexed: 12/15/2022] Open
Abstract
Multipotent trophoblasts undergo dynamic morphological movement and cellular differentiation after conceptus implantation to generate placenta. However, the mechanism controlling trophoblast development and differentiation during peri-implantation development in human remains elusive. In this study, we modeled human conceptus peri-implantation development from blastocyst to early postimplantation stages by using an in vitro coculture system and profiled the transcriptome of 476 individual trophoblast cells from these conceptuses. We revealed the genetic networks regulating peri-implantation trophoblast development. While determining when trophoblast differentiation happens, our bioinformatic analysis identified T-box transcription factor 3 (TBX3) as a key regulator for the differentiation of cytotrophoblast (CT) into syncytiotrophoblast (ST). The function of TBX3 in trophoblast differentiation is then validated by a loss-of-function experiment. In conclusion, our results provided a valuable resource to study the regulation of trophoblasts development and differentiation during human peri-implantation development.
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Affiliation(s)
- Bo Lv
- Department of Regenerative Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Qin An
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, State of California, United States of America
| | - Qiao Zeng
- Center of Reproductive Medicine of Ji’an Maternal and Child Health Hospital, Ji’an, Jiangxi, China
| | - Xunyi Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji University, Shanghai, China
| | - Ping Lu
- Department of Regenerative Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Yanqiu Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji University, Shanghai, China
| | - Xianmin Zhu
- Shanghai Pulmonary Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yazhong Ji
- Reproductive Medicine Center, Tongji Hospital, Tongji University, Shanghai, China
- * E-mail: (ZX); (GF); (YJ)
| | - Guoping Fan
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, State of California, United States of America
- * E-mail: (ZX); (GF); (YJ)
| | - Zhigang Xue
- Department of Regenerative Medicine, School of Medicine, Tongji University, Shanghai, China
- Reproductive Medicine Center, Tongji Hospital, Tongji University, Shanghai, China
- * E-mail: (ZX); (GF); (YJ)
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30
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Klf14 is an imprinted transcription factor that regulates placental growth. Placenta 2019; 88:61-67. [PMID: 31675530 DOI: 10.1016/j.placenta.2019.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Imprinted genes are preferentially expressed from one parentally inherited allele, and many are crucial to the regulation of placental function and fetal growth. Murine Krüppel-like factor 14 (Klf14) is a maternally expressed imprinted transcription factor that is a component of the Mest imprinted gene cluster on mouse chromosome 6. We sought to determine if loss of Klf14 expression alters the course of normal mouse extraembryonic development. We also used high-throughput RNA sequencing (RNAseq) to identify a set of differentially expressed genes (DEGs) in placentas with loss of Klf14. METHODS We generated a Klf14 knockout (Klf14null) mouse using recombineering and transgenic approaches. To identify DEGs in the mouse placenta we compared mRNA transcriptomes derived from 17.5dpc Klf14matKO and wild-type littermate placentas by RNAseq. Candidate DEGs were confirmed with quantitative reverse transcription PCR (qPCR) on an independent cohort of male and female gestational age matched Klf14matKO placentas. RESULTS We found that 17.5dpc placentas inheriting a maternal null allele (Klf14matKO) had a modest overgrowth phenotype and a near complete ablation of Klf14 expression. However, there was no effect on fetal growth. We identified 20 DEGs differentially expressed in Klf14matKO placentas by RNAseq, and subsequently validated five that are highly upregulated (Begain, Col26a1, Fbln5, Gdf10, and Nell1) by qPCR. The most enriched functional gene-networks included those classified as regulating cellular development and metabolism. CONCLUSION These results suggest that loss of the maternal Klf14 locus in the mouse placenta acts results in changes in gene expression patterns that modulate placental growth.
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Moon JM, Capra JA, Abbot P, Rokas A. Immune Regulation in Eutherian Pregnancy: Live Birth Coevolved with Novel Immune Genes and Gene Regulation. Bioessays 2019; 41:e1900072. [PMID: 31373044 DOI: 10.1002/bies.201900072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/03/2019] [Indexed: 11/05/2022]
Abstract
Novel regulatory elements that enabled expression of pre-existing immune genes in reproductive tissues and novel immune genes with pregnancy-specific roles in eutherians have shaped the evolution of mammalian pregnancy by facilitating the emergence of novel mechanisms for immune regulation over its course. Trade-offs arising from conflicting fitness effects on reproduction and host defenses have further influenced the patterns of genetic variation of these genes. These three mechanisms (novel regulatory elements, novel immune genes, and trade-offs) played a pivotal role in refining the regulation of maternal immune systems during pregnancy in eutherians, likely facilitating the establishment of prolonged direct maternal-fetal contact in eutherians without causing immunological rejection of the genetically distinct fetus.
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Affiliation(s)
- Jiyun M Moon
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, 37235, USA
| | - John A Capra
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, 37235, USA.,Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, 37235, USA.,Department of Biomedical Informatics, Vanderbilt University, Nashville, TN, 37235, USA
| | - Patrick Abbot
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, 37235, USA
| | - Antonis Rokas
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, 37235, USA.,Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, 37235, USA.,Department of Biomedical Informatics, Vanderbilt University, Nashville, TN, 37235, USA
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32
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Placenta-specific 9, a putative secretory protein, induces G2/M arrest and inhibits the proliferation of human embryonic hepatic cells. Biosci Rep 2018; 38:BSR20180820. [PMID: 30291214 PMCID: PMC6239258 DOI: 10.1042/bsr20180820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/21/2018] [Accepted: 10/04/2018] [Indexed: 01/10/2023] Open
Abstract
Background: Placenta-specific 9 (Plac9) is a putative secreted protein that was first discovered in the context of embryogenesis. The expression pattern of Plac9 during embryogenesis, together with the results of recent reports, suggest that Plac9 may play a role in the liver development. The present study was conducted to investigate the secretory characteristics of Plac9 and its potential role in liver cell physiology. Methods: Immunofluorescence was employed to identify the subcellular distribution of Plac9. Cellular proliferative activity was analyzed by MTT assay and cell colony formation. The cell cycle distribution of Plac9 was analyzed by flow cytometry, and a functional analysis was performed using L02 cells following their stable infection with a lentivirus over-expressing Plac9. Results:Plac9 is a novel protein that is localized to the cytoplasm and may be secreted through the classic endoplasmic reticulum-Golgi route. The overexpression of Plac9 inhibits cell growth and induces G2/M phase arrest. Conclusion: Our findings reveal a novel role for Plac9 in regulating cell growth.
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33
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Tunster SJ, Boqué-Sastre R, McNamara GI, Hunter SM, Creeth HDJ, John RM. Peg3 Deficiency Results in Sexually Dimorphic Losses and Gains in the Normal Repertoire of Placental Hormones. Front Cell Dev Biol 2018; 6:123. [PMID: 30320110 PMCID: PMC6170603 DOI: 10.3389/fcell.2018.00123] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/06/2018] [Indexed: 12/20/2022] Open
Abstract
Hormones from the fetally derived placenta signal to the mother throughout pregnancy to ensure optimal fetal growth and prepare the mother for her new role in nurturing her offspring. Through evolution, placental hormones have under gone remarkable diversification and species-specific expansions thought to be due to constant rebalancing of resource allocation between mother and offspring. Genomic imprinting, an epigenetic process in which parental germlines silence genes in the offspring, is thought to be the physical embodiment of a second conflicting interest, between the male and female mammal. Several genes silenced by paternal imprints normally function to limit the placental endocrine lineages of the mouse placenta. We hypothesized that paternal imprinting has adapted to overcome the rapid evolution of placental hormone gene families by directly regulating the lineages that express these hormones rather than individual hormones. This predicts the existence of genes maternally silenced in the offspring counteracting the influence of the paternal imprint. Here we report on the consequences of loss of function of Paternally expressed gene 3 (Peg3), on placental endocrine lineages. Mutant male placenta displayed a marked loss of the spongiotrophoblast, a key endocrine lineage of the placenta, and the glycogen cell lineage alongside reduced stores of placental glycogen and changes in expression of the normal repertoire of placental hormones. Peg3 is known to transcriptionally repress placental hormone genes. Peg3 consequently both positively and negatively regulates placental hormones through two independent and opposing mechanisms. Female placenta showed moderate response to loss of Peg3 with minor alterations to the junctional zone lineages and few changes in gene expression. These data highlight the important fact that female placenta compensate for the loss of Peg3 better than male placenta. This work lends further support to our novel hypothesis that the parental genomes are competing over the endocrine function of the mouse placenta and further suggests that a conflict between males and females begins in utero.
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Affiliation(s)
- Simon J Tunster
- Biomedicine Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Raquel Boqué-Sastre
- Biomedicine Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Gráinne I McNamara
- Biomedicine Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Susan M Hunter
- Biomedicine Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Hugo D J Creeth
- Biomedicine Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Rosalind M John
- Biomedicine Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
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34
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Than NG, Romero R, Tarca AL, Kekesi KA, Xu Y, Xu Z, Juhasz K, Bhatti G, Leavitt RJ, Gelencser Z, Palhalmi J, Chung TH, Gyorffy BA, Orosz L, Demeter A, Szecsi A, Hunyadi-Gulyas E, Darula Z, Simor A, Eder K, Szabo S, Topping V, El-Azzamy H, LaJeunesse C, Balogh A, Szalai G, Land S, Torok O, Dong Z, Kovalszky I, Falus A, Meiri H, Draghici S, Hassan SS, Chaiworapongsa T, Krispin M, Knöfler M, Erez O, Burton GJ, Kim CJ, Juhasz G, Papp Z. Integrated Systems Biology Approach Identifies Novel Maternal and Placental Pathways of Preeclampsia. Front Immunol 2018; 9:1661. [PMID: 30135684 PMCID: PMC6092567 DOI: 10.3389/fimmu.2018.01661] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/04/2018] [Indexed: 12/13/2022] Open
Abstract
Preeclampsia is a disease of the mother, fetus, and placenta, and the gaps in our understanding of the complex interactions among their respective disease pathways preclude successful treatment and prevention. The placenta has a key role in the pathogenesis of the terminal pathway characterized by exaggerated maternal systemic inflammation, generalized endothelial damage, hypertension, and proteinuria. This sine qua non of preeclampsia may be triggered by distinct underlying mechanisms that occur at early stages of pregnancy and induce different phenotypes. To gain insights into these molecular pathways, we employed a systems biology approach and integrated different "omics," clinical, placental, and functional data from patients with distinct phenotypes of preeclampsia. First trimester maternal blood proteomics uncovered an altered abundance of proteins of the renin-angiotensin and immune systems, complement, and coagulation cascades in patients with term or preterm preeclampsia. Moreover, first trimester maternal blood from preterm preeclamptic patients in vitro dysregulated trophoblastic gene expression. Placental transcriptomics of women with preterm preeclampsia identified distinct gene modules associated with maternal or fetal disease. Placental "virtual" liquid biopsy showed that the dysregulation of these disease gene modules originates during the first trimester. In vitro experiments on hub transcription factors of these gene modules demonstrated that DNA hypermethylation in the regulatory region of ZNF554 leads to gene down-regulation and impaired trophoblast invasion, while BCL6 and ARNT2 up-regulation sensitizes the trophoblast to ischemia, hallmarks of preterm preeclampsia. In summary, our data suggest that there are distinct maternal and placental disease pathways, and their interaction influences the clinical presentation of preeclampsia. The activation of maternal disease pathways can be detected in all phenotypes of preeclampsia earlier and upstream of placental dysfunction, not only downstream as described before, and distinct placental disease pathways are superimposed on these maternal pathways. This is a paradigm shift, which, in agreement with epidemiological studies, warrants for the central pathologic role of preexisting maternal diseases or perturbed maternal-fetal-placental immune interactions in preeclampsia. The description of these novel pathways in the "molecular phase" of preeclampsia and the identification of their hub molecules may enable timely molecular characterization of patients with distinct preeclampsia phenotypes.
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Affiliation(s)
- Nandor Gabor Than
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
- Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, United States
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, United States
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, United States
| | - Adi Laurentiu Tarca
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Computer Science, College of Engineering, Wayne State University, Detroit, MI, United States
| | - Katalin Adrienna Kekesi
- Laboratory of Proteomics, Department of Physiology and Neurobiology, ELTE Eotvos Lorand University, Budapest, Hungary
| | - Yi Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
| | - Zhonghui Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard University, Boston, MA, United States
| | - Kata Juhasz
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Gaurav Bhatti
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
| | | | - Zsolt Gelencser
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Janos Palhalmi
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | | | - Balazs Andras Gyorffy
- Laboratory of Proteomics, Department of Physiology and Neurobiology, ELTE Eotvos Lorand University, Budapest, Hungary
| | - Laszlo Orosz
- Department of Obstetrics and Gynaecology, University of Debrecen, Debrecen, Hungary
| | - Amanda Demeter
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Anett Szecsi
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Eva Hunyadi-Gulyas
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Zsuzsanna Darula
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Attila Simor
- Laboratory of Proteomics, Department of Physiology and Neurobiology, ELTE Eotvos Lorand University, Budapest, Hungary
| | - Katalin Eder
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Szilvia Szabo
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
- Department of Morphology and Physiology, Semmelweis University, Budapest, Hungary
| | - Vanessa Topping
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
| | - Haidy El-Azzamy
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
| | - Christopher LaJeunesse
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
| | - Andrea Balogh
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Gabor Szalai
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Systems Biology of Reproduction Lendulet Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Susan Land
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, United States
| | - Olga Torok
- Department of Obstetrics and Gynaecology, University of Debrecen, Debrecen, Hungary
| | - Zhong Dong
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
| | - Ilona Kovalszky
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Andras Falus
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | | | - Sorin Draghici
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, United States
- Department of Clinical and Translational Science, Wayne State University, Detroit, MI, United States
| | - Sonia S. Hassan
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
| | | | - Martin Knöfler
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Offer Erez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Obstetrics and Gynecology, Soroka University Medical Center School of Medicine, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Graham J. Burton
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Chong Jai Kim
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Bethesda, MD, United States
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services, Detroit, MI, United States
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Pathology, Asan Medical Center, University of Ulsan, Seoul, South Korea
| | - Gabor Juhasz
- Laboratory of Proteomics, Department of Physiology and Neurobiology, ELTE Eotvos Lorand University, Budapest, Hungary
| | - Zoltan Papp
- Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary
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35
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Maternal care boosted by paternal imprinting in mammals. PLoS Biol 2018; 16:e2006599. [PMID: 30063711 PMCID: PMC6067684 DOI: 10.1371/journal.pbio.2006599] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/26/2018] [Indexed: 12/16/2022] Open
Abstract
In mammals, mothers are the primary caregiver, programmed, in part, by hormones produced during pregnancy. High-quality maternal care is essential for the survival and lifelong health of offspring. We previously showed that the paternally silenced imprinted gene pleckstrin homology-like domain family A member 2 (Phlda2) functions to negatively regulate a single lineage in the mouse placenta called the spongiotrophoblast, a major source of hormones in pregnancy. Consequently, the offspring's Phlda2 gene dosage may influence the quality of care provided by the mother. Here, we show that wild-type (WT) female mice exposed to offspring with three different doses of the maternally expressed Phlda2 gene-two active alleles, one active allele (the extant state), and loss of function-show changes in the maternal hypothalamus and hippocampus during pregnancy, regions important for maternal-care behaviour. After birth, WT dams exposed in utero to offspring with the highest Phlda2 dose exhibit decreased nursing and grooming of pups and increased focus on nest building. Conversely, 'paternalised' dams, exposed to the lowest Phlda2 dose, showed increased nurturing of their pups, increased self-directed behaviour, and a decreased focus on nest building, behaviour that was robustly maintained in the absence of genetically modified pups. This work raises the intriguing possibility that imprinting of Phlda2 contributed to increased maternal care during the evolution of mammals.
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36
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Soares MJ, Iqbal K, Kozai K. Hypoxia and Placental Development. Birth Defects Res 2018; 109:1309-1329. [PMID: 29105383 DOI: 10.1002/bdr2.1135] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 09/04/2017] [Indexed: 12/17/2022]
Abstract
Hemochorial placentation is orchestrated through highly regulated temporal and spatial decisions governing the fate of trophoblast stem/progenitor cells. Trophoblast cell acquisition of specializations facilitating invasion and uterine spiral artery remodeling is a labile process, sensitive to the environment, and represents a process that is vulnerable to dysmorphogenesis in pathologic states. Hypoxia is a signal guiding placental development, and molecular mechanisms directing cellular adaptations to low oxygen tension are integral to trophoblast cell differentiation and placentation. Hypoxia can also be used as an experimental tool to investigate regulatory processes controlling hemochorial placentation. These developmental processes are conserved in mouse, rat, and human placentation. Consequently, elements of these developmental events can be modeled and hypotheses tested in trophoblast stem cells and in genetically manipulated rodents. Hypoxia is also a consequence of a failed placenta, yielding pathologies that can adversely affect maternal adjustments to pregnancy, fetal health, and susceptibility to adult disease. The capacity of the placenta for adaptation to environmental challenges highlights the importance of its plasticity in safeguarding a healthy pregnancy. Birth Defects Research 109:1309-1329, 2017.© 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Michael J Soares
- Institute for Reproduction and Perinatal Research, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas.,Department of Pediatrics, University of Kansas Medical Center, Kansas City, Kansas.,Fetal Health Research, Children's Research Institute, Children's Mercy, Kansas City, Missouri
| | - Khursheed Iqbal
- Institute for Reproduction and Perinatal Research, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Keisuke Kozai
- Institute for Reproduction and Perinatal Research, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
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37
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Ealy AD, Wooldridge LK. The evolution of interferon-tau. Reproduction 2018; 154:F1-F10. [PMID: 28982935 DOI: 10.1530/rep-17-0292] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 06/20/2017] [Accepted: 07/10/2017] [Indexed: 01/24/2023]
Abstract
Thirty years ago, a novel type I interferon (IFN) was identified by molecular cloning of cDNA libraries constructed from RNA extracted from ovine and bovine pre-implantation embryos. This protein was eventually designated as IFN-tau (IFNT) to highlight its trophoblast-dependent expression. IFNT function is not immune related. Instead, it interacts with the maternal system to initiate the establishment and maintenance of pregnancy. This activity is indispensable for the continuation of pregnancy. Our review will describe how IFNT evolved from other type I IFNs to function in this new capacity. IFNT genes have only been identified in pecoran ruminants within the Artiodactyla order (e.g. cattle, sheep, goats, deer, antelope, giraffe). The ancestral IFNT gene emerged approximately 36 million years ago most likely from rearrangement and/or insertion events that combined an ancestral IFN-omega (IFNW) gene with a trophoblast-specifying promoter/enhancer. Since then, IFNT genes have duplicated, likely through conversion events, and mutations have allowed them to adapt to their new function in concert with the emergence of different species. Multiple IFNT polymorphisms have been identified in cattle, sheep and goats. These genes and gene alleles encode proteins that do not display identical antiviral, antiproliferative and antiluteolytic activities. The need for multiple IFNT genes, numerous alleles and distinct activities remains debatable, but the consensus is that this complexity in IFNT expression and biological activity must be needed to provide the best opportunity for pregnancy to be recognized by the maternal system so that gestation may continue.
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Affiliation(s)
- Alan D Ealy
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, Virginia, USA
| | - Lydia K Wooldridge
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, Virginia, USA
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38
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Barnet MB, Blinman P, Cooper W, Boyer MJ, Kao S, Goodnow CC. Understanding Immune Tolerance of Cancer: Re-Purposing Insights from Fetal Allografts and Microbes. Bioessays 2018; 40:e1800050. [PMID: 29869436 DOI: 10.1002/bies.201800050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/14/2018] [Indexed: 12/27/2022]
Abstract
Cancer cells seem to exploit mechanisms that evolve as part of physiological tolerance, which is a complementary and often beneficial form of defense. The study of physiological systems of tolerance can therefore provide insights into the development of a state of host tolerance of cancer, and how to break it. Analysis of these models has the potential to improve our understanding of existing immunological therapeutic targets, and help to identify future targets and rational therapeutic combinations. The treatment of cancer with immune checkpoint inhibitors aims to reverse the progression to tolerance of cancer, and achieve an immunogenic, rather than tolerogenic, homeostasis. Broadening the efficacy and durability of checkpoint inhibitors focuses on reversing tolerance and stimulating immunogenicity in the cancer, host, and environment. Two examples of important physiological states of tolerance that may inform tolerance of cancer are microbial infection and placental reproduction. These states of tolerance result from bilateral shaping of host and non-self, akin to immunoediting in cancer, and offer reliable models to study the immune tolerance paradigm.
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Affiliation(s)
- Megan B Barnet
- The Garvan Institute of Medical Research, Darlinghurst, 2010, NSW, Australia.,The Kinghorn Cancer Centre, Darlinghurst, 2010, NSW, Australia.,The Chris O'Brien Lifehouse, Camperdown, 2050, NSW, Australia
| | - Prunella Blinman
- Concord Cancer Centre, Concord Repatriation General Hospital, Concord, 2139, NSW, Australia.,Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
| | - Wendy Cooper
- Sydney Medical School, University of Sydney, Camperdown, 2050, Australia.,Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, 2050, NSW, Australia.,School of Medicine, Western Sydney University, Sydney, 2050, Australia
| | - Michael J Boyer
- The Chris O'Brien Lifehouse, Camperdown, 2050, NSW, Australia.,Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
| | - Steven Kao
- The Chris O'Brien Lifehouse, Camperdown, 2050, NSW, Australia.,Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
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Costanzo V, Bardelli A, Siena S, Abrignani S. Exploring the links between cancer and placenta development. Open Biol 2018; 8:180081. [PMID: 29950452 PMCID: PMC6030113 DOI: 10.1098/rsob.180081] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 06/05/2018] [Indexed: 12/19/2022] Open
Abstract
The development of metastatic cancer is a multistage process, which often requires decades to complete. Impairments in DNA damage control and DNA repair in cancer cell precursors generate genetically heterogeneous cell populations. However, despite heterogeneity most solid cancers have stereotypical behaviours, including invasiveness and suppression of immune responses that can be unleashed with immunotherapy targeting lymphocyte checkpoints. The mechanisms leading to the acquisition of stereotypical properties remain poorly understood. Reactivation of embryonic development processes in cells with unstable genomes might contribute to tumour expansion and metastasis formation. However, it is unclear whether these events are linked to immune response modulation. Tumours and embryos have non-self-components and need to avoid immune responses in their microenvironment. In mammalian embryos, neo-antigens are of paternal origin, while in tumour cells DNA mismatch repair and replication defects generate them. Inactivation of the maternal immune response towards the embryo, which occurs at the placental-maternal interface, is key to ensuring embryonic development. This regulation is accomplished by the trophoblast, which mimics several malignant cell features, including the ability to invade normal tissues and to avoid host immune responses, often adopting the same cancer immunoediting strategies. A better understanding as to whether and how genotoxic stress promotes cancer development through reactivation of programmes occurring during early stages of mammalian placentation could help to clarify resistance to drugs targeting immune checkpoint and DNA damage responses and to develop new therapeutic strategies to eradicate cancer.
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Affiliation(s)
- Vincenzo Costanzo
- IFOM, The FIRC Institute of Molecular Oncology, University of Milan Medical School, Milan, Italy
- Department of Oncology, University of Milan Medical School, Milan, Italy
| | - Alberto Bardelli
- Candiolo Cancer Institute-FPO, IRCCS, University of Turin, Candiolo, Turin, Italy
- Department of Oncology, University of Turin, Candiolo, Turin, Italy
| | - Salvatore Siena
- Department of Oncology, University of Milan Medical School, Milan, Italy
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Sergio Abrignani
- INGM, Istituto Nazionale Genetica Molecolare "Romeo ed Enrica Invernizzi", Milan, Italy
- University of Milan Medical School, Milan, Italy
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40
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Shi LY, Ma Y, Zhu GY, Liu JW, Zhou CX, Chen LJ, Wang Y, Li RC, Yang ZX, Zhang D. Placenta‐specific 1 regulates oocyte meiosis and fertilization through furin. FASEB J 2018; 32:5483-5494. [DOI: 10.1096/fj.201700922rr] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Li-Ya Shi
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
| | - Yang Ma
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
| | - Gang-Yi Zhu
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
| | - Jin-Wei Liu
- Department of GynecologyZhejiang Provincial People's HospitalHangzhouChina
| | - Chun-Xiang Zhou
- Prenatal Diagnosis Center of Jiangsu ProvinceAffiliated Drum Tower Hospital, Nanjing University Medical SchoolNanjingChina
| | - Liang-Jian Chen
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
| | - Yang Wang
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
| | | | - Zhi-Xia Yang
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
| | - Dong Zhang
- State Key Lab of Reproductive MedicineNanjing Medical UniversityNanjingChina
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41
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Liu Y, Ding D, Liu H, Sun X. The accessible chromatin landscape during conversion of human embryonic stem cells to trophoblast by bone morphogenetic protein 4. Biol Reprod 2018; 96:1267-1278. [PMID: 28430877 DOI: 10.1093/biolre/iox028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 04/14/2017] [Indexed: 12/12/2022] Open
Abstract
Human embryonic stem cells (hESCs) exposed to the growth factor bone morphogenetic protein 4 (BMP4) in the absence of FGF2 have been used as a model to study the development of placental development. However, little is known about the cis-regulatory mechanisms underlying this important process. In this study, we used the public available chromatin accessibility data of hESC H1 cells and BMP4-induced trophoblast (TB) cell lines to identify DNase I hypersensitive sites (DHSs) in the two cell lines, as well as the transcription factor (TF) binding sites within the DHSs. By comparing read profiles in H1 and TB, we identified 17 472 TB-specific DHSs. The TB-specific DHSs are enriched in terms of "blood vessel" and "trophectoderm," consisting of TF motifs family: Leucine Zipper, Helix-Loop-Helix, GATA, and ETS. To validate differential expression of the TFs binding to these motifs, we analyzed public available RNA-seq and microarray data in the same context. Finally, by integrating the protein-protein interaction data, we constructed a TF network for placenta development and identified top 20 key TFs through centrality analysis in the network. Our results indicate BMP4-induced TB system provided an invaluable model for the study of TB development and highlighted novel candidate genes in placenta development in human.
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Affiliation(s)
- Yajun Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P.R. China
| | - Dewu Ding
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P.R. China.,Department of Mathematics and Computer Science, Chizhou College, Chizhou, P.R. China
| | - Hongde Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P.R. China
| | - Xiao Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P.R. China
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Transcriptomic changes in the pre-implantation uterus highlight histotrophic nutrition of the developing marsupial embryo. Sci Rep 2018; 8:2412. [PMID: 29402916 PMCID: PMC5799185 DOI: 10.1038/s41598-018-20744-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/23/2018] [Indexed: 12/12/2022] Open
Abstract
Early pregnancy is a critical time for successful reproduction; up to half of human pregnancies fail before the development of the definitive chorioallantoic placenta. Unlike the situation in eutherian mammals, marsupial pregnancy is characterised by a long pre-implantation period prior to the development of the short-lived placenta, making them ideal models for study of the uterine environment promoting embryonic survival pre-implantation. Here we present a transcriptomic study of pre-implantation marsupial pregnancy, and identify differentially expressed genes in the Sminthopsis crassicaudata uterus involved in metabolism and biosynthesis, transport, immunity, tissue remodelling, and uterine receptivity. Interestingly, almost one quarter of the top 50 genes that are differentially upregulated in early pregnancy are putatively involved in histotrophy, highlighting the importance of nutrient transport to the conceptus prior to the development of the placenta. This work furthers our understanding of the mechanisms underlying survival of pre-implantation embryos in the earliest live bearing ancestors of mammals.
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Abstract
The mammalian placenta shows an extraordinary degree of variation in gross and fine structure, but this has been difficult to interpret in physiological terms. Transcriptomics offers a path to understanding how structure relates to function. This essay examines how studies of gene transcription can inform us about placental evolution in eutherian and marsupial mammals and more broadly about convergent evolution of viviparity and placentation in vertebrates. Thus far, the focus has been on the chorioallantoic placenta of eutherians at term, the reproductive strategies of eutherians and marsupials, and the decidual response of the uterus at implantation. Future work should address gene expression during early stages of placental development and endeavor to cover all major groups of mammals. Comparative studies across oviparous and viviparous vertebrates have centered on the chorioallantoic membrane and yolk sac. They point to the possibility of defining a set of genes that can be recruited to support commonalities in reproductive strategies. Further advances can be anticipated from single-cell transcriptomics if those techniques are applied to a range of placental structures and in species other than humans and mice.
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Affiliation(s)
- Anthony M Carter
- Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, J. B. Winsloews Vej 21, DK-5000 Odense, Denmark
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44
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Host Cell Proteases: Cathepsins. ACTIVATION OF VIRUSES BY HOST PROTEASES 2018. [PMCID: PMC7123490 DOI: 10.1007/978-3-319-75474-1_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Cathepsins are proteolytic enzymes with a broad spectrum of substrates. They are known to reside within endo-lysosomes where they acquire optimal conditions for proteolytic activity and substrate cleavage. However, cathepsins have been detected in locations other than the canonical compartments of the endocytotic pathway. They are often secreted from cells in either proteolytically inactive proform or as mature and active enzyme; this may happen in both physiological and pathological conditions. Moreover, cytosolic and nuclear forms of cathepsins have been described and are currently an emerging field of research aiming at understanding their functions in such unexpected cellular locations. This chapter summarizes the canonical pathways of biosynthesis and transport of cathepsins in healthy cells. We further describe how cathepsins can reach unexpected locations such as the extracellular space or the cytosol and the nuclear matrix. No matter where viruses and cathepsins encounter, several outcomes can be perceived. Thus, scenarios are discussed on how cathepsins may support virus entry into host cells, involve in viral fusion factor and polyprotein processing in different host cell compartments, or help in packaging of viral particles during maturation. It is of note to mention that this review is not meant to comprehensively cover the present literature on viruses encountering cathepsins but rather illustrates, on some representative examples, the possible roles of cathepsins in replication of viruses and in the course of disease.
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45
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Makaroun SP, Himes KP. Differential Methylation of Syncytin-1 and 2 Distinguishes Fetal Growth Restriction from Physiologic Small for Gestational Age. AJP Rep 2018; 8:e18-e24. [PMID: 29472990 PMCID: PMC5821508 DOI: 10.1055/s-0038-1627473] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 12/09/2017] [Indexed: 12/26/2022] Open
Abstract
Objective The retroviral genes encoding Syncytin-1 ( SYN1 ) and Syncytin-2 ( SYN2 ) are epigenetically regulated, uniquely expressed in the placenta and critical to placental function. We sought to determine if placental expression and methylation patterns of SYN1 and SYN2 from pregnancies complicated by fetal growth restriction (FGR) differed from physiologic small for gestational age (SGA) and appropriate for gestational age (AGA) controls. Study Design Placental biopsies were obtained from AGA, SGA and FGR neonates delivered at >36 weeks gestation. SGA and FGR were defined as birth weight <10% with FGR additionally requiring abnormal fetal testing. We quantified DNA methylation of SYN1 and SYN2 by EpiTyper and gene expression by RT-qPCR. Results We identified 10 AGA, 9 SGA and 7 FGR placentas. There was decreased methylation in SYN1 and SYN2 in FGR relative to AGA and SGA. When the sum of SYN1 and SYN2 methylation was used for prediction of FGR from SGA, the area under the receiver operator characteristic curve was 0.9048 (0.7602, 1). Conclusion SYN1 and SYN2 methylation marks differ in FGR and SGA. We plan future studies to examine these markers in cell free DNA to determine if these methylation changes could be used as a biomarker for FGR.
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Affiliation(s)
- Sami P Makaroun
- Division of Maternal Fetal Medicine, Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania
| | - Katherine P Himes
- Division of Maternal Fetal Medicine, Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania
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Okae H, Toh H, Sato T, Hiura H, Takahashi S, Shirane K, Kabayama Y, Suyama M, Sasaki H, Arima T. Derivation of Human Trophoblast Stem Cells. Cell Stem Cell 2017; 22:50-63.e6. [PMID: 29249463 DOI: 10.1016/j.stem.2017.11.004] [Citation(s) in RCA: 501] [Impact Index Per Article: 71.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/20/2017] [Accepted: 11/02/2017] [Indexed: 11/25/2022]
Abstract
Trophoblast cells play an essential role in the interactions between the fetus and mother. Mouse trophoblast stem (TS) cells have been derived and used as the best in vitro model for molecular and functional analysis of mouse trophoblast lineages, but attempts to derive human TS cells have so far been unsuccessful. Here we show that activation of Wingless/Integrated (Wnt) and EGF and inhibition of TGF-β, histone deacetylase (HDAC), and Rho-associated protein kinase (ROCK) enable long-term culture of human villous cytotrophoblast (CT) cells. The resulting cell lines have the capacity to give rise to the three major trophoblast lineages, which show transcriptomes similar to those of the corresponding primary trophoblast cells. Importantly, equivalent cell lines can be derived from human blastocysts. Our data strongly suggest that the CT- and blastocyst-derived cell lines are human TS cells, which will provide a powerful tool to study human trophoblast development and function.
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Affiliation(s)
- Hiroaki Okae
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Hidehiro Toh
- Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Tetsuya Sato
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Hitoshi Hiura
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Sota Takahashi
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Kenjiro Shirane
- Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuka Kabayama
- Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Mikita Suyama
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroyuki Sasaki
- Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Takahiro Arima
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
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47
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Yang L, Zha TQ, He X, Chen L, Zhu Q, Wu WB, Nie FQ, Wang Q, Zang CS, Zhang ML, He J, Li W, Jiang W, Lu KH. Placenta-specific protein 1 promotes cell proliferation and invasion in non-small cell lung cancer. Oncol Rep 2017; 39:53-60. [PMID: 29138842 PMCID: PMC5783604 DOI: 10.3892/or.2017.6086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 09/26/2017] [Indexed: 01/08/2023] Open
Abstract
Pulmonary carcinoma-associated proteins have emerged as crucial players in governing fundamental biological processes such as cell proliferation, apoptosis and metastasis in human cancers. Placenta-specific protein 1 (PLAC1) is a cancer-related protein, which is activated and upregulated in a variety of malignant tissues, including prostate cancer, gastric adenocarcinoma, colorectal, epithelial ovarian and breast cancer. However, its biological role and clinical significance in non-small cell lung cancer (NSCLC) development and progression are still unknown. In the present study, we found that PLAC1 was significantly upregulated in NSCLC tissues, and its expression level was associated with advanced pathological stage and it was also correlated with shorter progression-free survival of lung cancer patients. Furthermore, knockdown of PLAC1 expression by siRNA inhibited cell proliferation, induced apoptosis and impaired invasive ability in NSCLC cells partly via regulation of epithelial-mesenchymal transition (EMT)-related protein expression. Our findings present that increased PLAC1 could be identified as a negative prognostic biomarker in NSCLC and regulate cell proliferation and invasion. Thus, we conclusively demonstrated that PLAC1 plays a key role in NSCLC development and progression, which may provide novel insights on the function of tumor-related gene-driven tumorigenesis.
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Affiliation(s)
- Li Yang
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Tian-Qi Zha
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Xiang He
- Department of Digestive, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Liang Chen
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Quan Zhu
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Wei-Bing Wu
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Feng-Qi Nie
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Qian Wang
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Chong-Shuang Zang
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Mei-Ling Zhang
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Jing He
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Wei Li
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Wen Jiang
- Department of Biochemistry, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
| | - Kai-Hua Lu
- Department of Oncology, First Affiliated Hospital, Nanjing Medical University, Gulou, Nanjing, Jiangsu 210029, P.R. China
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Adibi JJ, Zhao Y, Zhan LV, Kapidzic M, Larocque N, Koistinen H, Huhtaniemi IT, Stenman UH. An Investigation of the Single and Combined Phthalate Metabolite Effects on Human Chorionic Gonadotropin Expression in Placental Cells. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:107010. [PMID: 29089286 PMCID: PMC5933420 DOI: 10.1289/ehp1539] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 09/06/2017] [Accepted: 09/18/2017] [Indexed: 05/22/2023]
Abstract
BACKGROUND Observational studies have reported associations between maternal phthalate levels and adverse outcomes at birth and in the health of the child. Effects on placental function have been suggested as a biologic basis for these findings. OBJECTIVE We evaluated the effects of phthalates on placental function in vitro by measuring relevant candidate genes and proteins. MATERIALS AND METHODS Human trophoblast progenitor cells were isolated at 7-14 wk of pregnancy (two female and three male concepti), and villous cytotrophoblast cells (vCTBs) were isolated at 15-20 wk (three female and four male concepti). Cells were cultured in vitro with four phthalate metabolites and their combination at concentrations based on levels found previously in the urine of pregnant women: mono-n-butyl (MnBP, 200 nM), monobenzyl (MBzP, 3μM), mono-2-ethylhexyl (MEHP, 700 nM), and monoethyl (MEP, 1.5μM) phthalates. mRNA levels of CGA, CGB, PPARG, CYP19A1, CYP11A1, PTGS2, EREG, and the intracellular β subunit of human chorionic gonadotropin (hCGβ) and peroxisome proliferator activated receptor γ (PPARγ) were measured in the cellular extracts, and protein levels for four forms of secreted hCG were measured in the conditioned media. RESULTS Previously reported associations between maternal phthalates and placental gene expression were reproduced experimentally: MnBP with CGA, MBzP with CYP11A1, and MEHP with PTGS2. CGB and hCGβ were up-regulated by MBzP. In some cases, there were marked, even opposite, differences in response by sex of the cells. There was evidence of agonism in female cells and antagonism in male cells of PPARγ by simultaneous exposure to multiple phthalates. CONCLUSIONS Concentrations of MnBP, MBzP and MEHP similar to those found in the urine of pregnant women consistently altered hCG and PPARγ expression in primary placental cells. These findings provide evidence for the molecular basis by which phthalates may alter placental function, and they provide a preliminary mechanistic hypothesis for opposite responses by sex. https://doi.org/10.1289/EHP1539.
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Affiliation(s)
- Jennifer J Adibi
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yaqi Zhao
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Lei V Zhan
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Mirhan Kapidzic
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Nicholas Larocque
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Hannu Koistinen
- Department of Clinical Chemistry, Biomedicum, Helsinki University and Helsinki University Central Hospital, Helsinki, Finland
| | - Ilpo T Huhtaniemi
- Institute of Reproductive and Developmental Biology, Imperial College of London, London, United Kingdom
| | - Ulf-Håkan Stenman
- Department of Clinical Chemistry, Biomedicum, Helsinki University and Helsinki University Central Hospital, Helsinki, Finland
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Candidate genes involved in the evolution of viviparity: a RAD sequencing experiment in the lizard Zootoca vivipara (Squamata: Lacertidae). Zool J Linn Soc 2017. [DOI: 10.1093/zoolinnean/zlx069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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50
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Díaz-Carballo D, Klein J, Acikelli AH, Wilk C, Saka S, Jastrow H, Wennemuth G, Dammann P, Giger-Pabst U, Khosrawipour V, Rassow J, Nienen M, Strumberg D. Cytotoxic stress induces transfer of mitochondria-associated human endogenous retroviral RNA and proteins between cancer cells. Oncotarget 2017; 8:95945-95964. [PMID: 29221178 PMCID: PMC5707072 DOI: 10.18632/oncotarget.21606] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 08/25/2017] [Indexed: 12/24/2022] Open
Abstract
About 8 % of the human genome consists of human endogenous retroviruses (HERVs), which are relicts of ancient exogenous retroviral infections incurred during evolution. Although the majority of HERVs have functional gene defects or epigenetic modifications, many of them are still able to produce retroviral proteins that have been proposed to be involved in cellular transformation and cancer development. We found that, in chemo-resistant U87RETO glioblastoma cells, cytotoxic stress induced by etoposide promotes accumulation and large-scale fission of mitochondria, associated with the detection of HERV-WE1 (syncytin-1) and HERV-FRD1 (syncytin-2) in these organelles. In addition, mitochondrial preparations also contained the corresponding receptors, i.e. ASCT2 and MFSD2. We clearly demonstrated that mitochondria associated with HERV-proteins were shuttled between adjacent cancer cells not only via tunneling tubes, but also by direct cellular uptake across the cell membrane. Furthermore, anti-syncytin-1 and anti-syncytin-2 antibodies were able to specifically block this direct cellular uptake of mitochondria even more than antibodies targeting the cognate receptors. Here, we suggest that the association of mitochondria with syncytin-1/syncytin-2 together with their respective receptors could represent a novel mechanism of cell-to-cell transfer. In chemotherapy-refractory cancer cells, this might open up attractive avenues to novel mitochondria-targeting therapies.
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Affiliation(s)
- David Díaz-Carballo
- Institute for Molecular Oncology and Experimental Therapeutics, Department of Hematology and Medical Oncology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Jacqueline Klein
- Institute for Molecular Oncology and Experimental Therapeutics, Department of Hematology and Medical Oncology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Ali H Acikelli
- Institute for Molecular Oncology and Experimental Therapeutics, Department of Hematology and Medical Oncology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Camilla Wilk
- Institute for Molecular Oncology and Experimental Therapeutics, Department of Hematology and Medical Oncology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Sahitya Saka
- Institute for Molecular Oncology and Experimental Therapeutics, Department of Hematology and Medical Oncology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Holger Jastrow
- Institute of Anatomy and Experimental Morphology, University of Duisburg-Essen, Essen, Germany
| | - Gunther Wennemuth
- Institute of Anatomy and Experimental Morphology, University of Duisburg-Essen, Essen, Germany
| | - Phillip Dammann
- Central Animal Laboratory, University of Duisburg-Essen, Essen, Germany
| | - Urs Giger-Pabst
- Department of Surgery, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Veria Khosrawipour
- Department of Surgery, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Joachim Rassow
- Institute of Biochemistry and Pathobiochemistry, Department of Cellular Biochemistry, Ruhr-University of Bochum, Bochum, Germany
| | - Mikalai Nienen
- Department of Nephrology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
| | - Dirk Strumberg
- Institute for Molecular Oncology and Experimental Therapeutics, Department of Hematology and Medical Oncology, Marienhospital Herne, Ruhr-University of Bochum, Bochum, Germany
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