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Vascular endothelial growth factor and placental growth factor release in cultured trophoblast cells under different oxygen tensions

Record type: Article

The oxygen status of the placenta during pregnancy is unclear although it has been hypothesised that in pre-eclampsia large regions of the placenta are hypoxic. Circulating levels of vascular endothelial growth factor (VEGF) are increased in women with pre-eclampsia, while circulating placental growth factor (PlGF) levels are decreased. We hypothesise that secreted levels of VEGF are increased in cultures of trophoblast cells under lowered oxygen conditions while secreted levels of PlGF are alternatively regulated. Primary isolates of first trimester and term cytotrophoblasts cells were cultured in 20 and 5% oxygen for 24 h. There was a significant increase in the levels of VEGF secreted from first trimester and term cytotrophoblast cells cultured under lowered oxygen conditions compared to the controls while there was a significant decrease in the secreted levels of PlGF in the same cell populations (as measured by ELISA). In first trimester and term trophoblast cells the presence of VEGF (121, 165 and 189) and PlGF (132 and 152) mRNA were demonstrated in both groups by reverse transcription-polymerase chain reaction (RT-PCR). These altered levels of secreted VEGF and PlGF may be released as compensatory molecules in the pathogenesis of diseases such as pre-eclampsia and intrauterine growth restriction.

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Citation

Lash, G.E., Taylor, C.M., Trew, A.J., Cooper, S., Anthony, F.W., Wheeler, T. and Baker, P.N. (2002) Vascular endothelial growth factor and placental growth factor release in cultured trophoblast cells under different oxygen tensions Growth Factors, 20, (4), pp. 189-196. (doi:10.1080/0897719021000069560).

More information

Published date: 2002
Keywords: vegf, plgf, hypoxia, trophoblast cells

Identifiers

Local EPrints ID: 25743
URI: http://eprints.soton.ac.uk/id/eprint/25743
PURE UUID: 9b075615-5764-43e8-8992-bfbfc4ae3e8f

Catalogue record

Date deposited: 10 Apr 2006
Last modified: 17 Jul 2017 16:09

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Contributors

Author: G.E. Lash
Author: C.M. Taylor
Author: A.J. Trew
Author: S. Cooper
Author: F.W. Anthony
Author: T. Wheeler
Author: P.N. Baker

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