| First Author | Sakata M | Year | 1996 |
| Journal | J Endocrinol | Volume | 150 |
| Issue | 2 | Pages | 319-27 |
| PubMed ID | 8869598 | Mgi Jnum | J:34753 |
| Mgi Id | MGI:82214 | Doi | 10.1677/joe.0.1500319 |
| Citation | Sakata M, et al. (1996) 8-Bromo-cAMP inhibits glucose transport activity in mouse placental cells in culture. J Endocrinol 150(2):319-27 |
| abstractText | Glucose plays an important role in fetal development and energy metabolism. Facilitative glucose transporter-1 (GLUT1) has been found in placenta. However, little is known about GLUT1 modulation in placental cells. To examine changes in mouse placental GLUT1 levels caused by 8-bromo-cAMP, we performed 2-deoxyglucose uptake experiments, Northern blot analysis and immunoblot analysis using a primary mouse placental cell culture. Immunohistochemical analysis showed that GLUT1 was localized to the ectoplacental cone and the labyrinth zone of mouse placentas on days 7 and 11 of pregnancy respectively. Treatment of mouse placental cells with 250 mumol/l 8-bromo-cAMP resulted in a significant (P < 0.01) decrease in glucose uptake on days 2-5 of culture. The inhibitory effect of 8-bromo-cAMP on glucose uptake was concentration-dependent. Glucose uptake was also inhibited by 100 micrograms/l cholera toxin and by 0.1 mmol/l forskolin. Northern blot and immunoblot analysis revealed that both GLUT1 mRNA and protein levels were also decreased by 8-bromo-cAMP. These findings suggest that 8-bromo-cAMP inhibits glucose transport activity in mouse placental cells in culture. |
