Signal transducer and activator of transcription 3-stimulated hypoxia inducible factor-1α mediates estrogen receptor-α-induced mesenchymal stem cell vascular endothelial growth factor production

Meijing Wang, Jiangning Tan, Arthur Coffey, John Fehrenbacher, Brent R. Weil, Daniel R. Meldrum

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Objective: Vascular endothelial growth factor, a critical factor in angiogenesis, mediates stem cell paracrine protective effects on ischemic myocardium. Studies on the role of sex in stem cell function have demonstrated that female mesenchymal stem cells produce greater vascular endothelial growth factor and provide better cardiac protection compared with male mesenchymal stem cells. The purpose of this study was to determine the mechanisms by which estrogen affects mesenchymal stem cell function as a potential therapeutic measure during ex vivo expansion, before therapeutic use. Methods: A single-step purification method using adhesion to cell culture plastic was adopted to isolate mesenchymal stem cells from wild-type, estrogen receptor-α knockout, estrogen receptor-β knockout, and signal transducer and activator of transcription 3 knockout mice. Mesenchymal stem cells were treated with or without 17β-estradiol, estrogen receptor-α agonist (propyl pyrazoletriol), and estrogen receptor-β agonist (diarylpropionitrile). Results: 17β-estradiol significantly increased mesenchymal stem cell vascular endothelial growth factor production in a dose-dependent manner. Both estrogen receptor-α and estrogen receptor-β were expressed in mesenchymal stem cells. Administration of 17β-estradiol or estrogen receptor-α agonist (not estrogen receptor-β agonist) elevated mesenchymal stem cell vascular endothelial growth factor, hypoxia inducible factor-1α expression, and signal transducer and activator of transcription 3 activation. However, these effects were neutralized in estrogen receptor-α knockout mesenchymal stem cells, not estrogen receptor-β knockout. Signal transducer and activator of transcription 3 knockout abolished estrogen receptor-α-induced hypoxia inducible factor-1α and subsequent vascular endothelial growth factor production. Conclusion: 17β-estradiol-induced vascular endothelial growth factor production from mesenchymal stem cells appears to be mediated through estrogen receptor-α-activated signal transducer and activator of transcription 3-mediated hypoxia inducible factor-1α expression.

Original languageEnglish
JournalJournal of Thoracic and Cardiovascular Surgery
Volume138
Issue number1
DOIs
StatePublished - Jul 2009

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Hypoxia-Inducible Factor 1
STAT3 Transcription Factor
Mesenchymal Stromal Cells
Estrogen Receptors
Vascular Endothelial Growth Factor A
Estrogens
Estradiol Receptors
Estradiol
Stem Cells
Angiogenesis Inducing Agents
Therapeutic Uses
Knockout Mice
Transcriptional Activation
Plastics
Myocardium
Cell Culture Techniques

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Surgery
  • Pulmonary and Respiratory Medicine

Cite this

Signal transducer and activator of transcription 3-stimulated hypoxia inducible factor-1α mediates estrogen receptor-α-induced mesenchymal stem cell vascular endothelial growth factor production. / Wang, Meijing; Tan, Jiangning; Coffey, Arthur; Fehrenbacher, John; Weil, Brent R.; Meldrum, Daniel R.

In: Journal of Thoracic and Cardiovascular Surgery, Vol. 138, No. 1, 07.2009.

Research output: Contribution to journalArticle

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abstract = "Objective: Vascular endothelial growth factor, a critical factor in angiogenesis, mediates stem cell paracrine protective effects on ischemic myocardium. Studies on the role of sex in stem cell function have demonstrated that female mesenchymal stem cells produce greater vascular endothelial growth factor and provide better cardiac protection compared with male mesenchymal stem cells. The purpose of this study was to determine the mechanisms by which estrogen affects mesenchymal stem cell function as a potential therapeutic measure during ex vivo expansion, before therapeutic use. Methods: A single-step purification method using adhesion to cell culture plastic was adopted to isolate mesenchymal stem cells from wild-type, estrogen receptor-α knockout, estrogen receptor-β knockout, and signal transducer and activator of transcription 3 knockout mice. Mesenchymal stem cells were treated with or without 17β-estradiol, estrogen receptor-α agonist (propyl pyrazoletriol), and estrogen receptor-β agonist (diarylpropionitrile). Results: 17β-estradiol significantly increased mesenchymal stem cell vascular endothelial growth factor production in a dose-dependent manner. Both estrogen receptor-α and estrogen receptor-β were expressed in mesenchymal stem cells. Administration of 17β-estradiol or estrogen receptor-α agonist (not estrogen receptor-β agonist) elevated mesenchymal stem cell vascular endothelial growth factor, hypoxia inducible factor-1α expression, and signal transducer and activator of transcription 3 activation. However, these effects were neutralized in estrogen receptor-α knockout mesenchymal stem cells, not estrogen receptor-β knockout. Signal transducer and activator of transcription 3 knockout abolished estrogen receptor-α-induced hypoxia inducible factor-1α and subsequent vascular endothelial growth factor production. Conclusion: 17β-estradiol-induced vascular endothelial growth factor production from mesenchymal stem cells appears to be mediated through estrogen receptor-α-activated signal transducer and activator of transcription 3-mediated hypoxia inducible factor-1α expression.",
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