title: Global gene expression profiling of porcine endometria on Days 12 and 16 of the estrous cycle and pregnancy.
abstract: The objective of the study was to investigate transcriptomic profile of pig endometrium on Days 12 and 16 of pregnancy in comparison with the respective days of the estrous cycle. Labeled complementary DNA was hybridized to Porcine Long Oligo microarray containing 13,297 oligonucleotide probes, which represented complementary DNA and expressed sequence tags. Statistical analysis revealed 110 differentially expressed genes (DEGs) on Day 12 of pregnancy and 179 DEGs on Day 16 of pregnancy. In silico analysis of gene function and functionality networks revealed links between genes implicated in cell death and survival, protein synthesis, lipid metabolism, cellular movement, tissue development, and cell-to-cell signaling. On Day 12 of pregnancy, estrogen, transforming growth factor (TGF) β1, and fibroblast growth factor (FGF) 2, and on Day 16 of pregnancy, epidermal growth factor (EGF), insulin, interleukin 11 (IL-11), and FGF family members were indicated as possible upstream regulators of several DEGs. Obtained results showed changes in global endometrial gene expression at the time of maternal recognition of pregnancy and embryo implantation. Additionally, these data revealed signaling molecules, which together with E2, may evoke molecular changes in the uterus, leading to successful pregnancy establishment.
authors.affiliation: Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland; Faculty of Medical Sciences, Department of Histology and Embryology, University of Warmia and Mazury, Olsztyn, Poland.
authors.forename: Jolanta
authors.initials: J
authors.lastname: Kiewisz
authors.affiliation: Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland.
authors.forename: Kamil
authors.initials: K
authors.lastname: Krawczynski
authors.affiliation: Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Jastrzebiec, Poland.
authors.forename: Pawel
authors.initials: P
authors.lastname: Lisowski
authors.affiliation: Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Blitek
authors.affiliation: Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Jastrzebiec, Poland.
authors.forename: Lech
authors.initials: L
authors.lastname: Zwierzchowski
authors.affiliation: Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland.
authors.forename: Adam J
authors.initials: AJ
authors.lastname: Ziecik
authors.affiliation: Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland. Electronic address: m.kaczmarek@pan.olsztyn.pl.
authors.forename: Monika M
authors.initials: MM
authors.lastname: Kaczmarek
mesh_terms: D000818:Animals; D003198:Computer Simulation; D004717:Endometrium / Q000502:physiology*; D004967:Estrogens / Q000378:metabolism; D030762:Estrous Cycle / Q000502:physiology*; D005260:Female; D005786:Gene Expression Regulation / Q000502:physiology; D011247:Pregnancy; D011374:Progesterone / Q000378:metabolism; D013552:Swine / Q000502:physiology*; D059467:Transcriptome / Q000502:physiology*
chemical_list: D004967:Estrogens; D011374:Progesterone
keywords: Endometrium; Estrous cycle; Microarray; Pig; Pregnancy