Evaluating the impact of human amnion epithelial cells on angiogenesis

Dandan Zhu, Ruth Muljadi, Siow Teng Chan, Patricia Vosdoganes, Camden Lo, Joanne C Mockler, Euan M. Wallace, Rebecca Lim

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Abstract

The effects of human amnion epithelial cells (hAECs) on angiogenesis remain controversial. It is yet unknown if the presence of inflammation and/or gestational age of hAEC donors have an impact on angiogenesis. In this study, we examined the differences between term and preterm hAECs on angiogenesis in vitro and in vivo. Conditioned media from term hAECs induced the formation of longer huVEC tubules on Matrigel. Both term and preterm hAECs expressed VEGFA, PDGFB, ANGPT1, and FOXC1, which significantly increased after TNFa and IFN? stimulation. In the presence of TNFa and IFN?, coculture with term hAECs reduced gene transcription of Tie-2 and Foxc1 in huVECs, while coculture with preterm hAECs increased gene transcription of PDGFRa and PDGFR? and reduced gene transcription of FOXC1 in huVECs. In vivo assessment of angiogenesis using vWF immunostaining revealed that hAEC treatment decreased angiogenesis in a bleomycin model of lung fibrosis but increased angiogenesis in a neonatal model of hyperoxia-induced lung injury. In summary, our findings suggested that the impact of hAECs on angiogenesis may be influenced by the presence of inflammation and underlying pathology.
Original languageEnglish
Article number4565612
Number of pages13
JournalStem Cells International
Volume2016
DOIs
Publication statusPublished - 2016

Cite this

Zhu, Dandan ; Muljadi, Ruth ; Chan, Siow Teng ; Vosdoganes, Patricia ; Lo, Camden ; Mockler, Joanne C ; Wallace, Euan M. ; Lim, Rebecca. / Evaluating the impact of human amnion epithelial cells on angiogenesis. In: Stem Cells International. 2016 ; Vol. 2016.
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title = "Evaluating the impact of human amnion epithelial cells on angiogenesis",
abstract = "The effects of human amnion epithelial cells (hAECs) on angiogenesis remain controversial. It is yet unknown if the presence of inflammation and/or gestational age of hAEC donors have an impact on angiogenesis. In this study, we examined the differences between term and preterm hAECs on angiogenesis in vitro and in vivo. Conditioned media from term hAECs induced the formation of longer huVEC tubules on Matrigel. Both term and preterm hAECs expressed VEGFA, PDGFB, ANGPT1, and FOXC1, which significantly increased after TNFa and IFN? stimulation. In the presence of TNFa and IFN?, coculture with term hAECs reduced gene transcription of Tie-2 and Foxc1 in huVECs, while coculture with preterm hAECs increased gene transcription of PDGFRa and PDGFR? and reduced gene transcription of FOXC1 in huVECs. In vivo assessment of angiogenesis using vWF immunostaining revealed that hAEC treatment decreased angiogenesis in a bleomycin model of lung fibrosis but increased angiogenesis in a neonatal model of hyperoxia-induced lung injury. In summary, our findings suggested that the impact of hAECs on angiogenesis may be influenced by the presence of inflammation and underlying pathology.",
author = "Dandan Zhu and Ruth Muljadi and Chan, {Siow Teng} and Patricia Vosdoganes and Camden Lo and Mockler, {Joanne C} and Wallace, {Euan M.} and Rebecca Lim",
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doi = "10.1155/2016/4565612",
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volume = "2016",
journal = "Stem Cells International",
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Evaluating the impact of human amnion epithelial cells on angiogenesis. / Zhu, Dandan; Muljadi, Ruth; Chan, Siow Teng; Vosdoganes, Patricia; Lo, Camden; Mockler, Joanne C; Wallace, Euan M.; Lim, Rebecca.

In: Stem Cells International, Vol. 2016, 4565612, 2016.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Evaluating the impact of human amnion epithelial cells on angiogenesis

AU - Zhu, Dandan

AU - Muljadi, Ruth

AU - Chan, Siow Teng

AU - Vosdoganes, Patricia

AU - Lo, Camden

AU - Mockler, Joanne C

AU - Wallace, Euan M.

AU - Lim, Rebecca

PY - 2016

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N2 - The effects of human amnion epithelial cells (hAECs) on angiogenesis remain controversial. It is yet unknown if the presence of inflammation and/or gestational age of hAEC donors have an impact on angiogenesis. In this study, we examined the differences between term and preterm hAECs on angiogenesis in vitro and in vivo. Conditioned media from term hAECs induced the formation of longer huVEC tubules on Matrigel. Both term and preterm hAECs expressed VEGFA, PDGFB, ANGPT1, and FOXC1, which significantly increased after TNFa and IFN? stimulation. In the presence of TNFa and IFN?, coculture with term hAECs reduced gene transcription of Tie-2 and Foxc1 in huVECs, while coculture with preterm hAECs increased gene transcription of PDGFRa and PDGFR? and reduced gene transcription of FOXC1 in huVECs. In vivo assessment of angiogenesis using vWF immunostaining revealed that hAEC treatment decreased angiogenesis in a bleomycin model of lung fibrosis but increased angiogenesis in a neonatal model of hyperoxia-induced lung injury. In summary, our findings suggested that the impact of hAECs on angiogenesis may be influenced by the presence of inflammation and underlying pathology.

AB - The effects of human amnion epithelial cells (hAECs) on angiogenesis remain controversial. It is yet unknown if the presence of inflammation and/or gestational age of hAEC donors have an impact on angiogenesis. In this study, we examined the differences between term and preterm hAECs on angiogenesis in vitro and in vivo. Conditioned media from term hAECs induced the formation of longer huVEC tubules on Matrigel. Both term and preterm hAECs expressed VEGFA, PDGFB, ANGPT1, and FOXC1, which significantly increased after TNFa and IFN? stimulation. In the presence of TNFa and IFN?, coculture with term hAECs reduced gene transcription of Tie-2 and Foxc1 in huVECs, while coculture with preterm hAECs increased gene transcription of PDGFRa and PDGFR? and reduced gene transcription of FOXC1 in huVECs. In vivo assessment of angiogenesis using vWF immunostaining revealed that hAEC treatment decreased angiogenesis in a bleomycin model of lung fibrosis but increased angiogenesis in a neonatal model of hyperoxia-induced lung injury. In summary, our findings suggested that the impact of hAECs on angiogenesis may be influenced by the presence of inflammation and underlying pathology.

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