Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway

Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Zhuo Chen [verfasserIn] Xiang Gao [verfasserIn] Yang Jiao [verfasserIn] Yu Qiu [verfasserIn] Anlu Wang [verfasserIn] Meili Yu [verfasserIn] Fangyuan Che [verfasserIn] Siming Li [verfasserIn] Jing Liu [verfasserIn] Jingen Li [verfasserIn] He Zhang [verfasserIn] Changan Yu [verfasserIn] Geng Li [verfasserIn] Yanxiang Gao [verfasserIn] Lin Pan [verfasserIn] Weiliang Sun [verfasserIn] Jing Guo [verfasserIn] Bingyan Cao [verfasserIn] Yilin Zhu [verfasserIn] Hao Xu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB

Übergeordnetes Werk:	In: Frontiers in Pharmacology - Frontiers Media S.A., 2010, 10(2019)
Übergeordnetes Werk:	volume:10 ; year:2019

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fphar.2019.00850

Katalog-ID:	DOAJ040676587

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245	1	0	\|a Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway
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520			\|a Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway.
650		4	\|a Tanshinone IIA
650		4	\|a atherosclerosis
650		4	\|a anti-inflammatory
650		4	\|a immune regulation
650		4	\|a TLR4/MyD88/NF-κB
653		0	\|a Therapeutics. Pharmacology
700	0		\|a Xiang Gao \|e verfasserin \|4 aut
700	0		\|a Yang Jiao \|e verfasserin \|4 aut
700	0		\|a Yu Qiu \|e verfasserin \|4 aut
700	0		\|a Anlu Wang \|e verfasserin \|4 aut
700	0		\|a Meili Yu \|e verfasserin \|4 aut
700	0		\|a Fangyuan Che \|e verfasserin \|4 aut
700	0		\|a Siming Li \|e verfasserin \|4 aut
700	0		\|a Jing Liu \|e verfasserin \|4 aut
700	0		\|a Jingen Li \|e verfasserin \|4 aut
700	0		\|a He Zhang \|e verfasserin \|4 aut
700	0		\|a Changan Yu \|e verfasserin \|4 aut
700	0		\|a Geng Li \|e verfasserin \|4 aut
700	0		\|a Yanxiang Gao \|e verfasserin \|4 aut
700	0		\|a Lin Pan \|e verfasserin \|4 aut
700	0		\|a Weiliang Sun \|e verfasserin \|4 aut
700	0		\|a Jing Guo \|e verfasserin \|4 aut
700	0		\|a Bingyan Cao \|e verfasserin \|4 aut
700	0		\|a Yilin Zhu \|e verfasserin \|4 aut
700	0		\|a Hao Xu \|e verfasserin \|4 aut
773	0	8	\|i In \|t Frontiers in Pharmacology \|d Frontiers Media S.A., 2010 \|g 10(2019) \|w (DE-627)642889392 \|w (DE-600)2587355-6 \|x 16639812 \|7 nnns
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allfields	10.3389/fphar.2019.00850 doi (DE-627)DOAJ040676587 (DE-599)DOAJ428bd89da96b4939b4fb922b61a450e6 DE-627 ger DE-627 rakwb eng RM1-950 Zhuo Chen verfasserin aut Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway. Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB Therapeutics. Pharmacology Xiang Gao verfasserin aut Yang Jiao verfasserin aut Yu Qiu verfasserin aut Anlu Wang verfasserin aut Meili Yu verfasserin aut Fangyuan Che verfasserin aut Siming Li verfasserin aut Jing Liu verfasserin aut Jingen Li verfasserin aut He Zhang verfasserin aut Changan Yu verfasserin aut Geng Li verfasserin aut Yanxiang Gao verfasserin aut Lin Pan verfasserin aut Weiliang Sun verfasserin aut Jing Guo verfasserin aut Bingyan Cao verfasserin aut Yilin Zhu verfasserin aut Hao Xu verfasserin aut In Frontiers in Pharmacology Frontiers Media S.A., 2010 10(2019) (DE-627)642889392 (DE-600)2587355-6 16639812 nnns volume:10 year:2019 https://doi.org/10.3389/fphar.2019.00850 kostenfrei https://doaj.org/article/428bd89da96b4939b4fb922b61a450e6 kostenfrei https://www.frontiersin.org/article/10.3389/fphar.2019.00850/full kostenfrei https://doaj.org/toc/1663-9812 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2019
spelling	10.3389/fphar.2019.00850 doi (DE-627)DOAJ040676587 (DE-599)DOAJ428bd89da96b4939b4fb922b61a450e6 DE-627 ger DE-627 rakwb eng RM1-950 Zhuo Chen verfasserin aut Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway. Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB Therapeutics. Pharmacology Xiang Gao verfasserin aut Yang Jiao verfasserin aut Yu Qiu verfasserin aut Anlu Wang verfasserin aut Meili Yu verfasserin aut Fangyuan Che verfasserin aut Siming Li verfasserin aut Jing Liu verfasserin aut Jingen Li verfasserin aut He Zhang verfasserin aut Changan Yu verfasserin aut Geng Li verfasserin aut Yanxiang Gao verfasserin aut Lin Pan verfasserin aut Weiliang Sun verfasserin aut Jing Guo verfasserin aut Bingyan Cao verfasserin aut Yilin Zhu verfasserin aut Hao Xu verfasserin aut In Frontiers in Pharmacology Frontiers Media S.A., 2010 10(2019) (DE-627)642889392 (DE-600)2587355-6 16639812 nnns volume:10 year:2019 https://doi.org/10.3389/fphar.2019.00850 kostenfrei https://doaj.org/article/428bd89da96b4939b4fb922b61a450e6 kostenfrei https://www.frontiersin.org/article/10.3389/fphar.2019.00850/full kostenfrei https://doaj.org/toc/1663-9812 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2019
allfields_unstemmed	10.3389/fphar.2019.00850 doi (DE-627)DOAJ040676587 (DE-599)DOAJ428bd89da96b4939b4fb922b61a450e6 DE-627 ger DE-627 rakwb eng RM1-950 Zhuo Chen verfasserin aut Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway. Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB Therapeutics. Pharmacology Xiang Gao verfasserin aut Yang Jiao verfasserin aut Yu Qiu verfasserin aut Anlu Wang verfasserin aut Meili Yu verfasserin aut Fangyuan Che verfasserin aut Siming Li verfasserin aut Jing Liu verfasserin aut Jingen Li verfasserin aut He Zhang verfasserin aut Changan Yu verfasserin aut Geng Li verfasserin aut Yanxiang Gao verfasserin aut Lin Pan verfasserin aut Weiliang Sun verfasserin aut Jing Guo verfasserin aut Bingyan Cao verfasserin aut Yilin Zhu verfasserin aut Hao Xu verfasserin aut In Frontiers in Pharmacology Frontiers Media S.A., 2010 10(2019) (DE-627)642889392 (DE-600)2587355-6 16639812 nnns volume:10 year:2019 https://doi.org/10.3389/fphar.2019.00850 kostenfrei https://doaj.org/article/428bd89da96b4939b4fb922b61a450e6 kostenfrei https://www.frontiersin.org/article/10.3389/fphar.2019.00850/full kostenfrei https://doaj.org/toc/1663-9812 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2019
allfieldsGer	10.3389/fphar.2019.00850 doi (DE-627)DOAJ040676587 (DE-599)DOAJ428bd89da96b4939b4fb922b61a450e6 DE-627 ger DE-627 rakwb eng RM1-950 Zhuo Chen verfasserin aut Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway. Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB Therapeutics. Pharmacology Xiang Gao verfasserin aut Yang Jiao verfasserin aut Yu Qiu verfasserin aut Anlu Wang verfasserin aut Meili Yu verfasserin aut Fangyuan Che verfasserin aut Siming Li verfasserin aut Jing Liu verfasserin aut Jingen Li verfasserin aut He Zhang verfasserin aut Changan Yu verfasserin aut Geng Li verfasserin aut Yanxiang Gao verfasserin aut Lin Pan verfasserin aut Weiliang Sun verfasserin aut Jing Guo verfasserin aut Bingyan Cao verfasserin aut Yilin Zhu verfasserin aut Hao Xu verfasserin aut In Frontiers in Pharmacology Frontiers Media S.A., 2010 10(2019) (DE-627)642889392 (DE-600)2587355-6 16639812 nnns volume:10 year:2019 https://doi.org/10.3389/fphar.2019.00850 kostenfrei https://doaj.org/article/428bd89da96b4939b4fb922b61a450e6 kostenfrei https://www.frontiersin.org/article/10.3389/fphar.2019.00850/full kostenfrei https://doaj.org/toc/1663-9812 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2019
allfieldsSound	10.3389/fphar.2019.00850 doi (DE-627)DOAJ040676587 (DE-599)DOAJ428bd89da96b4939b4fb922b61a450e6 DE-627 ger DE-627 rakwb eng RM1-950 Zhuo Chen verfasserin aut Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway. Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB Therapeutics. Pharmacology Xiang Gao verfasserin aut Yang Jiao verfasserin aut Yu Qiu verfasserin aut Anlu Wang verfasserin aut Meili Yu verfasserin aut Fangyuan Che verfasserin aut Siming Li verfasserin aut Jing Liu verfasserin aut Jingen Li verfasserin aut He Zhang verfasserin aut Changan Yu verfasserin aut Geng Li verfasserin aut Yanxiang Gao verfasserin aut Lin Pan verfasserin aut Weiliang Sun verfasserin aut Jing Guo verfasserin aut Bingyan Cao verfasserin aut Yilin Zhu verfasserin aut Hao Xu verfasserin aut In Frontiers in Pharmacology Frontiers Media S.A., 2010 10(2019) (DE-627)642889392 (DE-600)2587355-6 16639812 nnns volume:10 year:2019 https://doi.org/10.3389/fphar.2019.00850 kostenfrei https://doaj.org/article/428bd89da96b4939b4fb922b61a450e6 kostenfrei https://www.frontiersin.org/article/10.3389/fphar.2019.00850/full kostenfrei https://doaj.org/toc/1663-9812 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 10 2019
language	English
source	In Frontiers in Pharmacology 10(2019) volume:10 year:2019
sourceStr	In Frontiers in Pharmacology 10(2019) volume:10 year:2019
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB Therapeutics. Pharmacology
isfreeaccess_bool	true
container_title	Frontiers in Pharmacology
authorswithroles_txt_mv	Zhuo Chen @@aut@@ Xiang Gao @@aut@@ Yang Jiao @@aut@@ Yu Qiu @@aut@@ Anlu Wang @@aut@@ Meili Yu @@aut@@ Fangyuan Che @@aut@@ Siming Li @@aut@@ Jing Liu @@aut@@ Jingen Li @@aut@@ He Zhang @@aut@@ Changan Yu @@aut@@ Geng Li @@aut@@ Yanxiang Gao @@aut@@ Lin Pan @@aut@@ Weiliang Sun @@aut@@ Jing Guo @@aut@@ Bingyan Cao @@aut@@ Yilin Zhu @@aut@@ Hao Xu @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	642889392
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This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P &lt; 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P &lt; 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P &lt; 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tanshinone IIA</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">atherosclerosis</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">anti-inflammatory</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">immune regulation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">TLR4/MyD88/NF-κB</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Therapeutics. 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callnumber-first	R - Medicine
author	Zhuo Chen
spellingShingle	Zhuo Chen misc RM1-950 misc Tanshinone IIA misc atherosclerosis misc anti-inflammatory misc immune regulation misc TLR4/MyD88/NF-κB misc Therapeutics. Pharmacology Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway
authorStr	Zhuo Chen
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topic_title	RM1-950 Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway Tanshinone IIA atherosclerosis anti-inflammatory immune regulation TLR4/MyD88/NF-κB
topic	misc RM1-950 misc Tanshinone IIA misc atherosclerosis misc anti-inflammatory misc immune regulation misc TLR4/MyD88/NF-κB misc Therapeutics. Pharmacology
topic_unstemmed	misc RM1-950 misc Tanshinone IIA misc atherosclerosis misc anti-inflammatory misc immune regulation misc TLR4/MyD88/NF-κB misc Therapeutics. Pharmacology
topic_browse	misc RM1-950 misc Tanshinone IIA misc atherosclerosis misc anti-inflammatory misc immune regulation misc TLR4/MyD88/NF-κB misc Therapeutics. Pharmacology
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title	Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway
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title_full	Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway
author_sort	Zhuo Chen
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author_browse	Zhuo Chen Xiang Gao Yang Jiao Yu Qiu Anlu Wang Meili Yu Fangyuan Che Siming Li Jing Liu Jingen Li He Zhang Changan Yu Geng Li Yanxiang Gao Lin Pan Weiliang Sun Jing Guo Bingyan Cao Yilin Zhu Hao Xu
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title_sort	tanshinone iia exerts anti-inflammatory and immune-regulating effects on vulnerable atherosclerotic plaque partially via the tlr4/myd88/nf-κb signal pathway
callnumber	RM1-950
title_auth	Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway
abstract	Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway.
abstractGer	Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway.
abstract_unstemmed	Background: Tanshinone IIA (Tan IIA), a lipophilic constituent from Salvia miltiorrhiza Bunge, has shown a promising cardioprotective effect including anti-atherosclerosis. This study aims at exploring Tan IIA’s anti-inflammatory and immune-regulating roles in stabilizing vulnerable atherosclerotic plaque in ApoE-deficient (ApoE−/−) mice.Methods: Male ApoE−/− mice (6 weeks) were fed with a high-fat diet for 13 weeks and then randomized to the model group (MOD) or Tan IIA groups [high dose: 90 mg/kg/day (HT), moderate dose: 30 mg/kg/day (MT), low dose: 10 mg/kg/day (LT)] or the atorvastatin group (5 mg/kg/day, ATO) for 13 weeks. Male C57BL/6 mice (6 weeks) were fed with ordinary rodent chow as control. The plaque stability was evaluated according to the morphology and composition of aortic atherosclerotic (AS) plaque in H&E staining and Movat staining sections by calculating the area of extracellular lipid, collagenous fiber, and foam cells to the plaque. The expression of the Toll-like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear factor-kappa B (NF-κB) signal pathway in aorta fractions was determined by immunohistochemistry. Serum levels of blood lipid were measured by turbidimetric inhibition immunoassay. The concentrations of tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) were detected by cytometric bead array.Results: Tan IIA stabilized aortic plaque with a striking reduction in the area of extracellular lipid (ATO: 13.15 ± 1.2%, HT: 12.2 ± 1.64%, MT: 13.93 ± 1.59%, MOD: 18.84 ± 1.46%, P < 0.05) or foam cells (ATO: 16.05 ± 1.26%, HT: 14.88 ± 1.79%, MT: 16.61 ± 1.47%, MOD: 22.08 ± 1.69%, P < 0.05) to the plaque, and an evident increase in content of collagenous fiber (ATO: 16.22 ± 1.91%, HT: 17.58 ± 1.33%, MT: 15.71 ± 2.26%, LT:14.92 ± 1.65%, MOD: 9.61 ± 0.7%, P < 0.05) to the plaque than that in the model group, concomitant with down-regulation of the protein expression of TLR4, MyD88, and NF-κB p65, and serum level of MCP-1 and TNF-α in a dose-dependent manner. There were no differences in serum TC, LDL, HDL, or TG levels between ApoE–/– mice and those treated with atorvastatin.Conclusions: These results suggest that Tan IIA could stabilize vulnerable AS plaque in ApoE−/− mice, and this anti-inflammatory and immune-regulating effect may be achieved via the TLR4/MyD88/NF-κB signaling pathway.
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title_short	Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway
url	https://doi.org/10.3389/fphar.2019.00850 https://doaj.org/article/428bd89da96b4939b4fb922b61a450e6 https://www.frontiersin.org/article/10.3389/fphar.2019.00850/full https://doaj.org/toc/1663-9812
remote_bool	true
author2	Xiang Gao Yang Jiao Yu Qiu Anlu Wang Meili Yu Fangyuan Che Siming Li Jing Liu Jingen Li He Zhang Changan Yu Geng Li Yanxiang Gao Lin Pan Weiliang Sun Jing Guo Bingyan Cao Yilin Zhu Hao Xu
author2Str	Xiang Gao Yang Jiao Yu Qiu Anlu Wang Meili Yu Fangyuan Che Siming Li Jing Liu Jingen Li He Zhang Changan Yu Geng Li Yanxiang Gao Lin Pan Weiliang Sun Jing Guo Bingyan Cao Yilin Zhu Hao Xu
ppnlink	642889392
callnumber-subject	RM - Therapeutics and Pharmacology
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hochschulschrift_bool	false
doi_str	10.3389/fphar.2019.00850
callnumber-a	RM1-950
up_date	2024-07-03T16:08:33.353Z
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Tanshinone IIA Exerts Anti-Inflammatory and Immune-Regulating Effects on Vulnerable Atherosclerotic Plaque Partially via the TLR4/MyD88/NF-κB Signal Pathway

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