Topical N-acetylcysteine accelerates wound healing in vitro and in vivo via the PKC/Stat3 pathway

N-Acetylcysteine (Nac) is an antioxidant administered in both oral and injectable forms. In this study, we used Nac topically to treat burn wounds in vitro and in vivo to investigate mechanisms of action. In vitro, we monitored glutathione levels, cell proliferation, migration, scratch-wound healing...

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Veröffentlicht in:International journal of molecular sciences 2014-05, Vol.15 (5), p.7563-7578
Hauptverfasser: Tsai, Min-Ling, Huang, Hui-Pei, Hsu, Jeng-Dong, Lai, Yung-Rung, Hsiao, Yu-Ping, Lu, Fung-Jou, Chang, Horng-Rong
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container_issue 5
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container_title International journal of molecular sciences
container_volume 15
creator Tsai, Min-Ling
Huang, Hui-Pei
Hsu, Jeng-Dong
Lai, Yung-Rung
Hsiao, Yu-Ping
Lu, Fung-Jou
Chang, Horng-Rong
description N-Acetylcysteine (Nac) is an antioxidant administered in both oral and injectable forms. In this study, we used Nac topically to treat burn wounds in vitro and in vivo to investigate mechanisms of action. In vitro, we monitored glutathione levels, cell proliferation, migration, scratch-wound healing activities and the epithelialization-related proteins, matrixmetalloproteinase-1 (MMP-1) and proteins involved in regulating the expression of MMP-1 in CCD-966SK cells treated with Nac. Various Nac concentrations (0.1, 0.5, and 1.0 mM) increased glutathione levels, cell viability, scratch-wound healing activities and migration abilities of CCD-966SK cells in a dose-dependent manner. The MMP-1 expression of CCD-966SK cells treated with 1.0 mM Nac for 24 h was significantly increased. Levels of phosphatidylinositol 3-kinase (PI3K), protein kinase C (PKC), janus kinase 1 (Jak1), signal transducer and activator of transcription 3 (Stat3), c-Fos and Jun, but not extracellular signal-regulated protein kinases 1 and 2 (Erk1/2), were also significantly increased in a dose-dependent manner compared to the controls. In addition, Nac induced collagenous expression of MMP-1 via the PKC/Stat3 signaling pathway. In vivo, a burn wound healing rat model was applied to assess the stimulation activity and histopathological effects of Nac, with 3.0% Nac-treated wounds being found to show better characteristics on re-epithelialization. Our results demonstrated that Nac can potentially promote wound healing activity, and may be a promising drug to accelerate burn wound healing.
doi_str_mv 10.3390/ijms15057563
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Levels of phosphatidylinositol 3-kinase (PI3K), protein kinase C (PKC), janus kinase 1 (Jak1), signal transducer and activator of transcription 3 (Stat3), c-Fos and Jun, but not extracellular signal-regulated protein kinases 1 and 2 (Erk1/2), were also significantly increased in a dose-dependent manner compared to the controls. In addition, Nac induced collagenous expression of MMP-1 via the PKC/Stat3 signaling pathway. In vivo, a burn wound healing rat model was applied to assess the stimulation activity and histopathological effects of Nac, with 3.0% Nac-treated wounds being found to show better characteristics on re-epithelialization. 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Levels of phosphatidylinositol 3-kinase (PI3K), protein kinase C (PKC), janus kinase 1 (Jak1), signal transducer and activator of transcription 3 (Stat3), c-Fos and Jun, but not extracellular signal-regulated protein kinases 1 and 2 (Erk1/2), were also significantly increased in a dose-dependent manner compared to the controls. In addition, Nac induced collagenous expression of MMP-1 via the PKC/Stat3 signaling pathway. In vivo, a burn wound healing rat model was applied to assess the stimulation activity and histopathological effects of Nac, with 3.0% Nac-treated wounds being found to show better characteristics on re-epithelialization. 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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute; PubMed Central
subjects Acetylcysteine - administration & dosage
Acetylcysteine - therapeutic use
Administration, Topical
Animals
Antioxidants
Antioxidants - administration & dosage
Antioxidants - therapeutic use
Burn treatment
Burns - drug therapy
Burns - metabolism
Burns - pathology
Cell Line
Cell Proliferation - drug effects
Cellular biology
Humans
Male
Mitogen-Activated Protein Kinase 1 - metabolism
Protein Kinase C - metabolism
Rats
Rats, Wistar
Signal transduction
Signal Transduction - drug effects
Skin - drug effects
Skin - metabolism
Skin - pathology
STAT3 Transcription Factor - metabolism
Wound healing
Wound Healing - drug effects
title Topical N-acetylcysteine accelerates wound healing in vitro and in vivo via the PKC/Stat3 pathway
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