Developmental peculiarities in placentae of ovine uniparental conceptuses
Publication Date
November 30, 2017
Authors
Roberta Arena, Federica Zacchini, Paola Toschi, Luca Palazzese, et al
Volume
12
Issue
11
Pages
e0188278
DOI
https://dx.plos.org/10.1371/journal.pone.0188278
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0188278
Scopus
85036526423
Mendeley
http://www.mendeley.com/research/developmental-peculiarities-placentae-ovine-uniparental-conceptuses
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Mendeley | Further Information

{"title"=>"Developmental peculiarities in placentae of ovine uniparental conceptuses", "type"=>"journal", "authors"=>[{"first_name"=>"Roberta", "last_name"=>"Arena", "scopus_author_id"=>"57195993736"}, {"first_name"=>"Federica", "last_name"=>"Zacchini", "scopus_author_id"=>"55935381800"}, {"first_name"=>"Paola", "last_name"=>"Toschi", "scopus_author_id"=>"50562237700"}, {"first_name"=>"Luca", "last_name"=>"Palazzese", "scopus_author_id"=>"57194536504"}, {"first_name"=>"Marta", "last_name"=>"Czernik", "scopus_author_id"=>"14051609100"}, {"first_name"=>"Grażyna Ewa", "last_name"=>"Ptak", "scopus_author_id"=>"6602151030"}], "year"=>2017, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"619472795", "pmid"=>"29190766", "issn"=>"19326203", "doi"=>"10.1371/journal.pone.0188278", "isbn"=>"1111111111", "scopus"=>"2-s2.0-85036526423", "sgr"=>"85036526423"}, "id"=>"e13d0b94-c2ab-3bab-98ec-221f04358757", "abstract"=>"Genomic imprinting is an epigenetic phenomenon regulating mono-allelic expression of genes depending on their parental origin. Defective genomic imprinting is involved in several placental disorders, such as intrauterine growth restriction and pre-eclampsia. Uniparental embryos, having maternal-only or paternal-only genomes (parthenogenotes [PAR] and androgenotes [AND], respectively), are useful models to study placentation. The aim of this work was to reveal the effect of parental genome (maternal and paternal) on placentation. To do this, uniparental (AND and PAR) and biparental (CTR) in vitro produced sheep embryos transferred to recipient females were collected at day 20 of pregnancy and their placentae were analyzed. qPCR analysis showed that imprinted genes (H19, IGF2R and DLK1) were expressed accordingly to their parental origin while the expression f DNA methyltransferases () was disregulated, especially in PAR (P < 0.05). AND placentae were significantly hypomethylated compared to both PAR and CTR (P = 0.023). Chorion-allantoid of AND showed impaired development of vessels and reduced mRNA expression of vasculogenetic factors (ANG2 P = 0.05; VEGFR2 P< 0.001; TIE2 P < 0.001). Morphologically, PAR placentae were characterized by abnormal structure of the trophoectodermal epithelium and reduced total number (P<0.03) of Trophoblastic Binucleate Cells. A reduced implantation rate of both classes of uniparental embryos (P<0.03) was also noted. Our results provide new insights into the characterization of uniparental embryos and demonstrate the complementary role of parental genomes for the correct establishment of pregnancy. Thus, our findings may suggest new targets to improve our understanding of the origin of imprinting-related placental dysfunction.", "link"=>"http://www.mendeley.com/research/developmental-peculiarities-placentae-ovine-uniparental-conceptuses", "reader_count"=>3, "reader_count_by_academic_status"=>{"Student > Doctoral Student"=>1, "Researcher"=>1, "Student > Master"=>1}, "reader_count_by_user_role"=>{"Student > Doctoral Student"=>1, "Researcher"=>1, "Student > Master"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Medicine and Dentistry"=>1, "Veterinary Science and Veterinary Medicine"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Unspecified"=>{"Unspecified"=>1}, "Veterinary Science and Veterinary Medicine"=>{"Veterinary Science and Veterinary Medicine"=>1}}, "group_count"=>0}

Scopus | Further Information

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