Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission
Mechanisms of HIV-1 in utero mother-to-child transmission (MTCT) protection provided by AZT are not completely understood. The placental cytokine network is involved in the control of HIV-1 in utero transmission but the effect of AZT on this network is unknown. To evaluate the effects of AZT on plac...
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th-cmuir.6653943832-7062014-08-29T09:01:59Z Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission Pornprasert S. Faye A. Mary J.Y. Dolcini G. Leechanachai P. Chaouat G. Ngo N. Barre-Sinoussi F. Menu E. Mechanisms of HIV-1 in utero mother-to-child transmission (MTCT) protection provided by AZT are not completely understood. The placental cytokine network is involved in the control of HIV-1 in utero transmission but the effect of AZT on this network is unknown. To evaluate the effects of AZT on placental cytokine expression, the chorionic villi from HIV-1 uninfected women term placentae were cultured with 0, 100, and 2000 ng/ml AZT. Tissue fragments were harvested at days 1, 4, and 7 to determine the level of cytokine mRNA by real-time RT-PCR. The viability and morphology of the placental histocultures were monitored by the expression of beta-human chorionic gonadotropin (β-hCG) gene, lipopolysaccharide (LPS) activation, and microscopic examination. AZT at 2000 ng/ml significantly down-regulated TNF-α mRNA expression at day 1 and day 4, but had no effect on β-hCG, stromal cell-derived factor 1 (SDF-1), and IL-10 gene expression. AZT did not induce any deleterious impact on placental tissue structure. Furthermore, activation of chorionic villi by LPS for 24 h up-regulated IL-10 and TNF-α mRNA expression. Down-regulation of TNF-α mRNA could represent a mechanism through which AZT can decrease the risk of HIV-1 MTCT, in addition to its direct effect on HIV-1 replication. © 2005 Elsevier Ltd. All rights reserved. 2014-08-29T09:01:59Z 2014-08-29T09:01:59Z 2006 Article 01434004 10.1016/j.placenta.2005.10.010 16359728 PLACD http://www.scopus.com/inward/record.url?eid=2-s2.0-33747155554&partnerID=40&md5=9f241b894afea74f79a5eb96a85112c2 http://cmuir.cmu.ac.th/handle/6653943832/706 English |
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Mechanisms of HIV-1 in utero mother-to-child transmission (MTCT) protection provided by AZT are not completely understood. The placental cytokine network is involved in the control of HIV-1 in utero transmission but the effect of AZT on this network is unknown. To evaluate the effects of AZT on placental cytokine expression, the chorionic villi from HIV-1 uninfected women term placentae were cultured with 0, 100, and 2000 ng/ml AZT. Tissue fragments were harvested at days 1, 4, and 7 to determine the level of cytokine mRNA by real-time RT-PCR. The viability and morphology of the placental histocultures were monitored by the expression of beta-human chorionic gonadotropin (β-hCG) gene, lipopolysaccharide (LPS) activation, and microscopic examination. AZT at 2000 ng/ml significantly down-regulated TNF-α mRNA expression at day 1 and day 4, but had no effect on β-hCG, stromal cell-derived factor 1 (SDF-1), and IL-10 gene expression. AZT did not induce any deleterious impact on placental tissue structure. Furthermore, activation of chorionic villi by LPS for 24 h up-regulated IL-10 and TNF-α mRNA expression. Down-regulation of TNF-α mRNA could represent a mechanism through which AZT can decrease the risk of HIV-1 MTCT, in addition to its direct effect on HIV-1 replication. © 2005 Elsevier Ltd. All rights reserved. |
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Pornprasert S. Faye A. Mary J.Y. Dolcini G. Leechanachai P. Chaouat G. Ngo N. Barre-Sinoussi F. Menu E. |
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Pornprasert S. Faye A. Mary J.Y. Dolcini G. Leechanachai P. Chaouat G. Ngo N. Barre-Sinoussi F. Menu E. Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission |
author_facet |
Pornprasert S. Faye A. Mary J.Y. Dolcini G. Leechanachai P. Chaouat G. Ngo N. Barre-Sinoussi F. Menu E. |
author_sort |
Pornprasert S. |
title |
Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission |
title_short |
Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission |
title_full |
Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission |
title_fullStr |
Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission |
title_full_unstemmed |
Down Modulation of TNF-α mRNA Placental Expression by AZT Used for the Prevention of HIV-1 Mother-to-Child Transmission |
title_sort |
down modulation of tnf-α mrna placental expression by azt used for the prevention of hiv-1 mother-to-child transmission |
publishDate |
2014 |
url |
http://www.scopus.com/inward/record.url?eid=2-s2.0-33747155554&partnerID=40&md5=9f241b894afea74f79a5eb96a85112c2 http://cmuir.cmu.ac.th/handle/6653943832/706 |
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1681419533442613248 |