| First Author | Rout UK | Year | 1997 |
| Journal | Cell Calcium | Volume | 22 |
| Issue | 6 | Pages | 463-74 |
| PubMed ID | 9502196 | Mgi Jnum | J:46302 |
| Mgi Id | MGI:1197540 | Doi | 10.1016/s0143-4160(97)90074-9 |
| Citation | Rout UK, et al. (1997) Ethanol-induced intracellular calcium mobilization rapidly alters gene expression in the mouse blastocyst. Cell Calcium 22(6):463-74 |
| abstractText | The induction of intracellular Ca2+ release in pre-implantation mouse embryos accelerates their subsequent rate of development in vitro through a calmodulin-dependent mechanism [Stachecki J.J., Armant D.R. Transient release of calcium from inositol 1,4,5-trisphosphate-specific stores regulates mouse pre-implantation development. Development 1996; 122: 2485-2496]. To examine the hypothesis that intracellular Ca2+ signaling alters embryonic gene expression, individual transcript levels were compared by mRNA differential display before and 1 h after intracellular Ca2+ mobilization with ethanol in mouse blastocysts. Ten up-regulated and four down-regulated genes were observed, representing 3.5% of approximately 400 transcripts that were resolved. After sequencing, most of the DNA fragments appeared to be novel; however, two amplicons that increased after Ca2+ mobilization were identified as arginase and ubiquitin conjugating enzyme (E2). The up-regulation of arginase mRNA (3.5-fold after 2 h) was confirmed by reverse transcription and the polymerase chain reaction using specific oligonucleotide primers derived from the deduced mouse embryo sequence. A corresponding 2.5-fold increase in arginase enzymatic activity peaked 9 h after ethanol exposure. Increased expression of arginase and other genes may mediate the onset of rapid cell proliferation and differentiation that is induced by Ca2+ signaling during pre-implantation development. |
