Angiogenin Attenuates Scar Formation in Burn Patients by Reducing Fibroblast Proliferation and Transforming Growth Factor β1 Secretion

Shin-Chen Pan, Chou Hwei Lee, Chung Lin Chen, Wei Yu Fang, Li-Wha Wu

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Deep burn wounds have a high tendency to form hypertrophic scars. Previously, we found that angiogenin promoted neovascularization during deep burn wound healing. However, the association between angiogenin and scar formation is unclear. METHODS: We obtained human burn scar tissues from patients who underwent scar surgery and examined the role of angiogenin in scar tissues and determined its effects in scar fibroblasts and on transforming growth factor β1 (TGF-β1) secretion. RESULTS: Our results showed an inverse correlation between angiogenin expression and scar severity. Next, we examined the effects of angiogenin in scar fibroblasts. We found that angiogenin was persistently expressed in human scar fibroblasts and that angiogenin expression significantly increased with time in the culture medium of scar fibroblasts. Treatment of scar fibroblasts with recombinant angiogenin significantly decreased their proliferation and TGF-β1 secretion. Moreover, angiogenin inhibited TGF-β1-mediated Smad2 signaling pathway. CONCLUSION: Our data suggest a negative role of angiogenin in fibroblast proliferation via TGF-β1-mediated Smad2 signaling pathway.

Original languageEnglish
Pages (from-to)S79-S83
JournalAnnals of plastic surgery
Volume80
Issue number2S Suppl 1
DOIs
Publication statusPublished - 2018 Feb 1

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Fibroblast Growth Factors
Transforming Growth Factors
Cicatrix
Fibroblasts
angiogenin
Hypertrophic Cicatrix
Wound Healing
Culture Media

All Science Journal Classification (ASJC) codes

  • Surgery

Cite this

@article{b3c1558370b642ac87cbce7ff430b912,
title = "Angiogenin Attenuates Scar Formation in Burn Patients by Reducing Fibroblast Proliferation and Transforming Growth Factor β1 Secretion",
abstract = "BACKGROUND: Deep burn wounds have a high tendency to form hypertrophic scars. Previously, we found that angiogenin promoted neovascularization during deep burn wound healing. However, the association between angiogenin and scar formation is unclear. METHODS: We obtained human burn scar tissues from patients who underwent scar surgery and examined the role of angiogenin in scar tissues and determined its effects in scar fibroblasts and on transforming growth factor β1 (TGF-β1) secretion. RESULTS: Our results showed an inverse correlation between angiogenin expression and scar severity. Next, we examined the effects of angiogenin in scar fibroblasts. We found that angiogenin was persistently expressed in human scar fibroblasts and that angiogenin expression significantly increased with time in the culture medium of scar fibroblasts. Treatment of scar fibroblasts with recombinant angiogenin significantly decreased their proliferation and TGF-β1 secretion. Moreover, angiogenin inhibited TGF-β1-mediated Smad2 signaling pathway. CONCLUSION: Our data suggest a negative role of angiogenin in fibroblast proliferation via TGF-β1-mediated Smad2 signaling pathway.",
author = "Shin-Chen Pan and Lee, {Chou Hwei} and Chen, {Chung Lin} and Fang, {Wei Yu} and Li-Wha Wu",
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Angiogenin Attenuates Scar Formation in Burn Patients by Reducing Fibroblast Proliferation and Transforming Growth Factor β1 Secretion. / Pan, Shin-Chen; Lee, Chou Hwei; Chen, Chung Lin; Fang, Wei Yu; Wu, Li-Wha.

In: Annals of plastic surgery, Vol. 80, No. 2S Suppl 1, 01.02.2018, p. S79-S83.

Research output: Contribution to journalArticle

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AU - Pan, Shin-Chen

AU - Lee, Chou Hwei

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AU - Fang, Wei Yu

AU - Wu, Li-Wha

PY - 2018/2/1

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N2 - BACKGROUND: Deep burn wounds have a high tendency to form hypertrophic scars. Previously, we found that angiogenin promoted neovascularization during deep burn wound healing. However, the association between angiogenin and scar formation is unclear. METHODS: We obtained human burn scar tissues from patients who underwent scar surgery and examined the role of angiogenin in scar tissues and determined its effects in scar fibroblasts and on transforming growth factor β1 (TGF-β1) secretion. RESULTS: Our results showed an inverse correlation between angiogenin expression and scar severity. Next, we examined the effects of angiogenin in scar fibroblasts. We found that angiogenin was persistently expressed in human scar fibroblasts and that angiogenin expression significantly increased with time in the culture medium of scar fibroblasts. Treatment of scar fibroblasts with recombinant angiogenin significantly decreased their proliferation and TGF-β1 secretion. Moreover, angiogenin inhibited TGF-β1-mediated Smad2 signaling pathway. CONCLUSION: Our data suggest a negative role of angiogenin in fibroblast proliferation via TGF-β1-mediated Smad2 signaling pathway.

AB - BACKGROUND: Deep burn wounds have a high tendency to form hypertrophic scars. Previously, we found that angiogenin promoted neovascularization during deep burn wound healing. However, the association between angiogenin and scar formation is unclear. METHODS: We obtained human burn scar tissues from patients who underwent scar surgery and examined the role of angiogenin in scar tissues and determined its effects in scar fibroblasts and on transforming growth factor β1 (TGF-β1) secretion. RESULTS: Our results showed an inverse correlation between angiogenin expression and scar severity. Next, we examined the effects of angiogenin in scar fibroblasts. We found that angiogenin was persistently expressed in human scar fibroblasts and that angiogenin expression significantly increased with time in the culture medium of scar fibroblasts. Treatment of scar fibroblasts with recombinant angiogenin significantly decreased their proliferation and TGF-β1 secretion. Moreover, angiogenin inhibited TGF-β1-mediated Smad2 signaling pathway. CONCLUSION: Our data suggest a negative role of angiogenin in fibroblast proliferation via TGF-β1-mediated Smad2 signaling pathway.

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