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Hirschel J, Barcos-Munoz F, Chalard F, Chiodini F, Epiney M, Fluss J, Rougemont AL. Perinatal arterial ischemic stroke: how informative is the placenta? Virchows Arch 2024; 484:815-825. [PMID: 38502326 PMCID: PMC11106178 DOI: 10.1007/s00428-024-03780-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/31/2024] [Accepted: 03/05/2024] [Indexed: 03/21/2024]
Abstract
Neuroplacentology is an expanding field of interest that addresses the placental influence on fetal and neonatal brain lesions and on further neurodevelopment. The objective of this study was to clarify the link between placental pathology and perinatal arterial ischemic stroke (PAIS). Prior publications have reported different types of perinatal stroke with diverse methodologies precluding firm conclusions. We report here the histological placental findings in a series of 16 neonates with radiologically confirmed PAIS. Findings were grouped into 3 categories of lesions: (1) inflammation, (2) placental and fetal hypoxic lesions, and (3) placentas with a high birthweight/placenta weight ratio. Matched control placentas were compared to the pathological placentas when feasible. The eight term singleton placentas were compared to a series of 20 placentas from a highly controlled amniotic membrane donation program; in three twin pregnancies, the placental portions from the affected twin and unaffected co-twin were compared. Slightly more than half (9/16, 56%) had histopathological features belonging to more than one category, a feature shared by the singleton control placentas (13/20, 65%). More severe and extensive lesions were however observed in the pathological placentas. One case occurring in the context of SARS-CoV-2 placentitis further expands the spectrum of COVID-related perinatal disease. Our study supports the assumption that PAIS can result from various combinations and interplay of maternal and fetal factors and confirms the value of placenta examination. Yet, placental findings must be interpreted with caution given their prevalence in well-designed controls.
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Affiliation(s)
- Jessica Hirschel
- Division of Neonatal and Intensive Care, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals of Geneva, Geneva, Switzerland
| | - Francisca Barcos-Munoz
- Division of Neonatal and Intensive Care, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals of Geneva, Geneva, Switzerland
| | - François Chalard
- Unit of Pediatric Radiology, Department of Radiology, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Florence Chiodini
- Therapeutic Tissue Biobank, University Hospitals of Geneva, Geneva, Switzerland
| | - Manuella Epiney
- Obstetrics Unit Department of Obstetrics and Gynecology, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Joel Fluss
- Pediatric Neurology Unit, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Anne-Laure Rougemont
- Division of Clinical Pathology, Diagnostic Department, Geneva University Hospitals and Faculty of Medicine, University of Geneva, Geneva, Switzerland.
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Weier JF, Ferlatte C, Baumgartner A, Nguyen HN, Weier BA, Weier HUG. Analysis of human invasive cytotrophoblasts demonstrates mosaic aneuploidy. PLoS One 2023; 18:e0284317. [PMID: 37478076 PMCID: PMC10361533 DOI: 10.1371/journal.pone.0284317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/28/2023] [Indexed: 07/23/2023] Open
Abstract
A total of 24 chromosome-specific fluorescence in situ hybridization probes for interphase nucleus analysis were developed to determine the chromosomal content of individual human invasive cytotrophoblasts derived from in vitro cultured assays. At least 75% of invasive cytotrophoblasts were hyperdiploid and the total number of chromosomes ranged from 47 to 61. The results also demonstrated that these hyperdiploid invasive cytotrophoblasts showed significant heterogeneity. The most copy number gains were observed for chromosomes 13, 14, 15, 19, 21, and 22 with average copy number greater than 2.3. A parallel study using primary invasive cytotrophoblasts also showed a similar trend of copy number changes. Conclusively, 24-chromosome analysis of human non-proliferating cytotrophoblasts (interphase nuclei) was achieved. Hyperdiploidy and chromosomal heterogeneity without endoduplication in invasive cytotrophoblasts may suggest a selective advantage for invasion and short lifespan during normal placental development.
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Affiliation(s)
- Jingly F Weier
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California (U.C.), San Francisco, California, United States of America
- Life Sciences Division, U.C. E.O. Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
| | - Christy Ferlatte
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California (U.C.), San Francisco, California, United States of America
| | - Adolf Baumgartner
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California (U.C.), San Francisco, California, United States of America
- Life Sciences Division, U.C. E.O. Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
| | - Ha Nam Nguyen
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California (U.C.), San Francisco, California, United States of America
| | - Beatrice A Weier
- Golden State Dermatology, Walnut Creek, California, United States of America
| | - Heinz-Ulrich G Weier
- Life Sciences Division, U.C. E.O. Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
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Zybina TG, Zybina EV. Role of cell cycling and polyploidy in placental trophoblast of different mammalian species. Reprod Domest Anim 2020; 55:895-904. [DOI: 10.1111/rda.13732] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 05/07/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Tatiana G. Zybina
- Laboratory of Cell Morphology Institute of Cytology RAS St.‐Petersburg Russia
| | - Eugenia V. Zybina
- Laboratory of Cell Morphology Institute of Cytology RAS St.‐Petersburg Russia
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Kasak L, Rull K, Vaas P, Teesalu P, Laan M. Extensive load of somatic CNVs in the human placenta. Sci Rep 2015; 5:8342. [PMID: 25666259 PMCID: PMC4914949 DOI: 10.1038/srep08342] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/15/2015] [Indexed: 11/09/2022] Open
Abstract
Placenta is a temporary, but indispensable organ in mammalian pregnancy. From its basic nature, it exhibits highly invasive tumour-like properties facilitating effective implantation through trophoblast cell proliferation and migration, and a critical role in pregnancy success. We hypothesized that similarly to cancer, somatic genomic rearrangements are promoted in the support of placental function. Here we present the first profiling of copy number variations (CNVs) in human placental genomes, showing an extensive load of somatic CNVs, especially duplications and suggesting that this phenomenon may be critical for normal gestation. Placental somatic CNVs were significantly enriched in genes involved in cell adhesion, immunity, embryonic development and cell cycle. Overrepresentation of imprinted genes in somatic duplications suggests that amplified gene copies may represent an alternative mechanism to support parent-of-origin specific gene expression. Placentas from pregnancy complications exhibited significantly altered CNV profile compared to normal gestations, indicative to the clinical implications of the study.
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Affiliation(s)
- Laura Kasak
- Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, Tartu 51010, Estonia
| | - Kristiina Rull
- 1] Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, Tartu 51010, Estonia [2] Department of Obstetrics and Gynaecology, University of Tartu, Puusepa St. 8, Tartu 51014, Estonia [3] Women's Clinic of Tartu University Hospital, Puusepa St. 8, Tartu 51014, Estonia
| | - Pille Vaas
- 1] Department of Obstetrics and Gynaecology, University of Tartu, Puusepa St. 8, Tartu 51014, Estonia [2] Women's Clinic of Tartu University Hospital, Puusepa St. 8, Tartu 51014, Estonia
| | - Pille Teesalu
- 1] Department of Obstetrics and Gynaecology, University of Tartu, Puusepa St. 8, Tartu 51014, Estonia [2] Women's Clinic of Tartu University Hospital, Puusepa St. 8, Tartu 51014, Estonia
| | - Maris Laan
- Human Molecular Genetics Research Group, Institute of Molecular and Cell Biology, University of Tartu, Riia St. 23, Tartu 51010, Estonia
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Zybina TG, Zybina EV. Genome variation in the trophoblast cell lifespan: Diploidy, polyteny, depolytenization, genome segregation. World J Med Genet 2014; 4:77-93. [DOI: 10.5496/wjmg.v4.i4.77] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 04/11/2014] [Accepted: 08/31/2014] [Indexed: 02/06/2023] Open
Abstract
The lifespan of mammalian trophoblast cells includes polyploidization, its degree and peculiarities are, probably, accounted for the characteristics of placenta development. The main ways of genome multiplication-endoreduplication and reduced mitosis-that basically differ by the extent of repression of mitotic events, play, most probably, different roles in the functionally different trophoblast cells in a variety of mammalian species. In the rodent placenta, highly polyploid (512-2048c) trophoblast giant cells (TGC) undergoing endoreduplication serve a barrier with semiallogenic maternal tissues whereas series of reduced mitoses allow to accumulate a great number of low-ploid junctional zone and labyrinth trophoblast cells. Endoreduplication of TGC comes to the end with formation of numerous low-ploid subcellular compartments that show some signs of viable cells though mitotically inactive; it makes impossible their ectopic proliferation inside maternal tissues. In distinct from rodent trophoblast, deviation from (2n)c in human and silver fox trophoblast suggests a possibility of aneuploidy and other chromosome changes (aberrations, etc.). It suggests that in mammalian species with lengthy period of pregnancy, polyploidy is accompanied by more diverse genome changes that may be useful to select a more specific response to stressful factors that may appear occasionally during months of intrauterine development.
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Fiddler M. Fetal Cell Based Prenatal Diagnosis: Perspectives on the Present and Future. J Clin Med 2014; 3:972-85. [PMID: 26237488 PMCID: PMC4449642 DOI: 10.3390/jcm3030972] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 08/19/2014] [Accepted: 08/28/2014] [Indexed: 01/23/2023] Open
Abstract
The ability to capture and analyze fetal cells from maternal circulation or other sources during pregnancy has been a goal of prenatal diagnostics for over thirty years. The vision of replacing invasive prenatal diagnostic procedures with the prospect of having the entire fetal genome in hand non-invasively for chromosomal and molecular studies for both clinical and research use has brought many investigators and innovations into the effort. While the object of this desire, however, has remained elusive, the aspiration for this approach to non-invasive prenatal diagnosis remains and the inquiry has continued. With the advent of screening by cell-free DNA analysis, the standards for fetal cell based prenatal diagnostics have been sharpened. Relevant aspects of the history and the current status of investigations to meet the goal of having an accessible and reliable strategy for capturing and analyzing fetal cells during pregnancy are reviewed.
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Affiliation(s)
- Morris Fiddler
- DePaul University and Insight Medical Genetics, LLC 680 N, Lake Shore Drive Chicago, IL 60611, USA.
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