Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling
Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose o...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Feng, Feifei [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Schlagwörter: |
Epithelial-mesenchymal transition |
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| Übergeordnetes Werk: |
Enthalten in: Ambiguous information and dilation: An experiment - Shishkin, Denis ELSEVIER, 2023, a journal of molecular and biochemical toxicology, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:319 ; year:2020 ; day:1 ; month:03 ; pages:0 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.cbi.2020.109024 |
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ELV049581651 |
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| 245 | 1 | 0 | |a Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling |
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| 520 | |a Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. | ||
| 520 | |a Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. | ||
| 650 | 7 | |a Tanshinone IIA |2 Elsevier | |
| 650 | 7 | |a Epithelial-mesenchymal transition |2 Elsevier | |
| 650 | 7 | |a Oxidative stress |2 Elsevier | |
| 650 | 7 | |a Transforming growth factor-β1 |2 Elsevier | |
| 650 | 7 | |a Nuclear factor erythroid 2-related factor-2 |2 Elsevier | |
| 650 | 7 | |a Silicosis |2 Elsevier | |
| 700 | 1 | |a Cheng, Peng |4 oth | |
| 700 | 1 | |a Xu, Shaohua |4 oth | |
| 700 | 1 | |a Li, Nannan |4 oth | |
| 700 | 1 | |a Wang, Hui |4 oth | |
| 700 | 1 | |a Zhang, Ying |4 oth | |
| 700 | 1 | |a Wang, Wei |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Shishkin, Denis ELSEVIER |t Ambiguous information and dilation: An experiment |d 2023 |d a journal of molecular and biochemical toxicology |g Amsterdam [u.a.] |w (DE-627)ELV009268340 |
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10.1016/j.cbi.2020.109024 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001097.pica (DE-627)ELV049581651 (ELSEVIER)S0009-2797(19)31622-9 DE-627 ger DE-627 rakwb eng 330 VZ 31.00 bkl 83.10 bkl Feng, Feifei verfasserin aut Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Tanshinone IIA Elsevier Epithelial-mesenchymal transition Elsevier Oxidative stress Elsevier Transforming growth factor-β1 Elsevier Nuclear factor erythroid 2-related factor-2 Elsevier Silicosis Elsevier Cheng, Peng oth Xu, Shaohua oth Li, Nannan oth Wang, Hui oth Zhang, Ying oth Wang, Wei oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:319 year:2020 day:1 month:03 pages:0 https://doi.org/10.1016/j.cbi.2020.109024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 319 2020 1 0301 0 |
| spelling |
10.1016/j.cbi.2020.109024 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001097.pica (DE-627)ELV049581651 (ELSEVIER)S0009-2797(19)31622-9 DE-627 ger DE-627 rakwb eng 330 VZ 31.00 bkl 83.10 bkl Feng, Feifei verfasserin aut Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Tanshinone IIA Elsevier Epithelial-mesenchymal transition Elsevier Oxidative stress Elsevier Transforming growth factor-β1 Elsevier Nuclear factor erythroid 2-related factor-2 Elsevier Silicosis Elsevier Cheng, Peng oth Xu, Shaohua oth Li, Nannan oth Wang, Hui oth Zhang, Ying oth Wang, Wei oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:319 year:2020 day:1 month:03 pages:0 https://doi.org/10.1016/j.cbi.2020.109024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 319 2020 1 0301 0 |
| allfields_unstemmed |
10.1016/j.cbi.2020.109024 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001097.pica (DE-627)ELV049581651 (ELSEVIER)S0009-2797(19)31622-9 DE-627 ger DE-627 rakwb eng 330 VZ 31.00 bkl 83.10 bkl Feng, Feifei verfasserin aut Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Tanshinone IIA Elsevier Epithelial-mesenchymal transition Elsevier Oxidative stress Elsevier Transforming growth factor-β1 Elsevier Nuclear factor erythroid 2-related factor-2 Elsevier Silicosis Elsevier Cheng, Peng oth Xu, Shaohua oth Li, Nannan oth Wang, Hui oth Zhang, Ying oth Wang, Wei oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:319 year:2020 day:1 month:03 pages:0 https://doi.org/10.1016/j.cbi.2020.109024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 319 2020 1 0301 0 |
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10.1016/j.cbi.2020.109024 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001097.pica (DE-627)ELV049581651 (ELSEVIER)S0009-2797(19)31622-9 DE-627 ger DE-627 rakwb eng 330 VZ 31.00 bkl 83.10 bkl Feng, Feifei verfasserin aut Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Tanshinone IIA Elsevier Epithelial-mesenchymal transition Elsevier Oxidative stress Elsevier Transforming growth factor-β1 Elsevier Nuclear factor erythroid 2-related factor-2 Elsevier Silicosis Elsevier Cheng, Peng oth Xu, Shaohua oth Li, Nannan oth Wang, Hui oth Zhang, Ying oth Wang, Wei oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:319 year:2020 day:1 month:03 pages:0 https://doi.org/10.1016/j.cbi.2020.109024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 319 2020 1 0301 0 |
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10.1016/j.cbi.2020.109024 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001097.pica (DE-627)ELV049581651 (ELSEVIER)S0009-2797(19)31622-9 DE-627 ger DE-627 rakwb eng 330 VZ 31.00 bkl 83.10 bkl Feng, Feifei verfasserin aut Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. Tanshinone IIA Elsevier Epithelial-mesenchymal transition Elsevier Oxidative stress Elsevier Transforming growth factor-β1 Elsevier Nuclear factor erythroid 2-related factor-2 Elsevier Silicosis Elsevier Cheng, Peng oth Xu, Shaohua oth Li, Nannan oth Wang, Hui oth Zhang, Ying oth Wang, Wei oth Enthalten in Elsevier Science Shishkin, Denis ELSEVIER Ambiguous information and dilation: An experiment 2023 a journal of molecular and biochemical toxicology Amsterdam [u.a.] (DE-627)ELV009268340 volume:319 year:2020 day:1 month:03 pages:0 https://doi.org/10.1016/j.cbi.2020.109024 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 31.00 Mathematik: Allgemeines VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 319 2020 1 0301 0 |
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Tanshinone IIA attenuates silica-induced pulmonary fibrosis via Nrf2-mediated inhibition of EMT and TGF-β1/Smad signaling |
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Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. |
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Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. |
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Silicosis is an occupational pulmonary fibrosis that is caused by inhalation of silica (SiO2), and there are no effective drugs to treat this disease. Tanshinone IIA (Tan IIA), a natural product, has been reported to possess antioxidant and anti-fibrotic properties in various diseases. The purpose of the current study was to examine Tan IIA's protective effects against silica-induced pulmonary fibrosis and to explore the underlying mechanisms. We found that in vivo treatment with Tan IIA significantly relieved silica-induced lung fibrosis in a silicosis rat model by histological and immunohistochemical analyses. Further, in vitro mechanistic investigations, mainly using western blot and immunofluorescence analyses, revealed that Tan IIA administration markedly inhibited the silica-induced epithelial-mesenchymal transition (EMT) and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway and also reduced silica-induced oxidative stress and activated the nuclear factor erythroid 2-related factor-2 (Nrf2) signaling pathway in A549 and human bronchial epithelial (HBE) cells. Furthermore, through transfection with siRNA, we demonstrate that Nrf2 activation partially mediates the suppression effects of Tan IIA on EMT and TGF-β1/Smad signaling pathway activation induced by silica exposure, thus mediating the anti-fibrotic effects of Tan IIA against silica-induced pulmonary fibrosis. In our study, Tan IIA has been identified as a possible anti-oxidative and anti-fibrotic drug for silicosis. |
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