title: Gene expression and maintenance of pregnancy in bovine: roles of trophoblastic binucleate cell-specific molecules.
abstract: Cell to cell interaction plays a pivotal role in the regulation of placentogenesis and exchange of stage-specific developmental signals between the fetal and maternal units. Specifically, these interactions are paramount for programmed fetal growth, maternal adaptation to pregnancy and coordination of parturition. However, little is known about the precise regulation of placentation and maintenance of gestation in cattle. Therefore, the aim of the present study was to decipher the complex networks ofcell communication to gain an insight into the multifaceted developmental process and understand the profound consequences of flawed communication. In the ruminant, the binucleate cell plays a central role in forming the structures and secretions at the fetomaternal interface that are crucial in establishing and maintaining pregnancy. Herein, we summarise differences in the abundance of specific RNA transcripts in the bovine cotyledon and caruncle using global gene expression profiling and further investigate the relationship of mRNA abundance for selected pregnancy-specific genes of interest (identified from microarray studies) that are localised exclusively to the binucleate cell, such as placental lactogen, prolactin-related proteins and pregnancy-associated glycoproteins. The results suggest that a well-orchestrated transcriptional command from binucleate cells is pivotal to the establishment and progression of pregnancy in cattle.
authors: Department of Veterinary Medicine, Iwate University, Ueda 3-18-8, Morioka, Iwate 020-8550, Japan. kazuha@iwate-u.ac.jp
authors: Kazuyoshi
authors: K
authors: Hashizume
authors: Koichi
authors: K
authors: Ushizawa
authors: Osman V
authors: OV
authors: Patel
authors: Keiichiro
authors: K
authors: Kizaki
authors: Kei
authors: K
authors: Imai
authors: Osamu
authors: O
authors: Yamada
authors: Haruo
authors: H
authors: Nakano
authors: Toru
authors: T
authors: Takahashi
mesh_terms: D000818:Animals; D002417:Cattle; D002467:Cell Nucleus / Q000235:genetics; D005260:Female; D020869:Gene Expression Profiling; D018507:Gene Expression Regulation, Developmental; D010920:Placenta / Q000502:physiology; D010928:Placental Lactogen / Q000235:genetics; D011247:Pregnancy; D011257:Pregnancy Proteins / Q000235:genetics* / Q000378:metabolism; D011270:Pregnancy, Animal; D014327:Trophoblasts / Q000166:cytology / Q000502:physiology*
chemical_list: D011257:Pregnancy Proteins; D010928:Placental Lactogen