1. Reduced telomere length in amniocytes: an early biomarker of abnormal fetal development?
- Author
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Carole Goumy, Lauren Veronese, Rodrigue Stamm, Quentin Domas, Kamil Hadjab, Denis Gallot, Hélène Laurichesse, Amélie Delabaere, Laetitia Gouas, Gaelle Salaun, Céline Perbel-Richard, Philippe Vago, Andrei Tchirkov, Role of intra-Clonal Heterogeneity and Leukemic environment in ThErapy Resistance of chronic leukemias (CHELTER), Université Clermont Auvergne (UCA), Service Obstétrique [CHU Clermont-Ferrand], CHU Estaing [Clermont-Ferrand], CHU Clermont-Ferrand-CHU Clermont-Ferrand, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Thérapie guidée par l'image (TGI), and SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Fetal Growth Retardation ,[SDV.MHEP.HEM]Life Sciences [q-bio]/Human health and pathology/Hematology ,General Medicine ,[SDV.MHEP.GEO]Life Sciences [q-bio]/Human health and pathology/Gynecology and obstetrics ,Telomere ,Fetal Development ,Pregnancy ,Genetics ,Humans ,Female ,Molecular Biology ,Biomarkers ,Telomere Shortening ,Genetics (clinical) - Abstract
Telomeres protect chromosome ends and control cell division and senescence. During organogenesis, telomeres need to be long enough to ensure the cell proliferation necessary at this stage of development. Previous studies have shown that telomere shortening is associated with growth retardation and congenital malformations. However, these studies were performed in newborns or postnatally, and data on telomere length (TL) during the prenatal period are still very limited. We measured TL using quantitative PCR in amniotic fluid (AF) and chorionic villi (CV) samples from 69 control fetuses with normal ultrasound (52 AF and 17 CV) and 213 fetuses (165 AF and 48 CV) with intrauterine growth retardation (IUGR) or congenital malformations diagnosed by ultrasound. The samples were collected by amniocentesis at the gestational age (GA) of 25.0 ± 5.4 weeks and by CV biopsy at 18.1 ± 6.3 weeks. In neither sample type was TL influenced by GA or fetal sex. In AF, a comparison of abnormal versus normal fetuses showed a significant telomere shortening in cases of IUGR (reduction of 34%, P
- Published
- 2022
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