18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling

Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficaci...
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Autor*in:	Jia-Ling Wang [verfasserIn] Hui Liu [verfasserIn] Zhi-Cheng Jing [verfasserIn] Fang Zhao [verfasserIn] Ru Zhou [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	18β-glycyrrhetinic acid endoplasmic reticulum stress-induced inflammation pulmonary arterial hypertension remodeling

Übergeordnetes Werk:	In: Chinese Journal of Physiology - Wolters Kluwer Medknow Publications, 2021, 65(2022), 4, Seite 187-198
Übergeordnetes Werk:	volume:65 ; year:2022 ; number:4 ; pages:187-198

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.4103/0304-4920.354801

Katalog-ID:	DOAJ033644101

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520			\|a Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway.
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spelling	10.4103/0304-4920.354801 doi (DE-627)DOAJ033644101 (DE-599)DOAJe95e444fbb414b55b2e7133278fe45bb DE-627 ger DE-627 rakwb eng QP1-981 Jia-Ling Wang verfasserin aut 18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway. 18β-glycyrrhetinic acid endoplasmic reticulum stress-induced inflammation pulmonary arterial hypertension remodeling Physiology Hui Liu verfasserin aut Zhi-Cheng Jing verfasserin aut Fang Zhao verfasserin aut Ru Zhou verfasserin aut In Chinese Journal of Physiology Wolters Kluwer Medknow Publications, 2021 65(2022), 4, Seite 187-198 (DE-627)664260969 (DE-600)2617104-1 26660059 nnns volume:65 year:2022 number:4 pages:187-198 https://doi.org/10.4103/0304-4920.354801 kostenfrei https://doaj.org/article/e95e444fbb414b55b2e7133278fe45bb kostenfrei http://www.cjphysiology.org/article.asp?issn=0304-4920;year=2022;volume=65;issue=4;spage=187;epage=198;aulast=Wang kostenfrei https://doaj.org/toc/0304-4920 Journal toc kostenfrei https://doaj.org/toc/2666-0059 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_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 65 2022 4 187-198
allfields_unstemmed	10.4103/0304-4920.354801 doi (DE-627)DOAJ033644101 (DE-599)DOAJe95e444fbb414b55b2e7133278fe45bb DE-627 ger DE-627 rakwb eng QP1-981 Jia-Ling Wang verfasserin aut 18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway. 18β-glycyrrhetinic acid endoplasmic reticulum stress-induced inflammation pulmonary arterial hypertension remodeling Physiology Hui Liu verfasserin aut Zhi-Cheng Jing verfasserin aut Fang Zhao verfasserin aut Ru Zhou verfasserin aut In Chinese Journal of Physiology Wolters Kluwer Medknow Publications, 2021 65(2022), 4, Seite 187-198 (DE-627)664260969 (DE-600)2617104-1 26660059 nnns volume:65 year:2022 number:4 pages:187-198 https://doi.org/10.4103/0304-4920.354801 kostenfrei https://doaj.org/article/e95e444fbb414b55b2e7133278fe45bb kostenfrei http://www.cjphysiology.org/article.asp?issn=0304-4920;year=2022;volume=65;issue=4;spage=187;epage=198;aulast=Wang kostenfrei https://doaj.org/toc/0304-4920 Journal toc kostenfrei https://doaj.org/toc/2666-0059 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_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 65 2022 4 187-198
allfieldsGer	10.4103/0304-4920.354801 doi (DE-627)DOAJ033644101 (DE-599)DOAJe95e444fbb414b55b2e7133278fe45bb DE-627 ger DE-627 rakwb eng QP1-981 Jia-Ling Wang verfasserin aut 18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway. 18β-glycyrrhetinic acid endoplasmic reticulum stress-induced inflammation pulmonary arterial hypertension remodeling Physiology Hui Liu verfasserin aut Zhi-Cheng Jing verfasserin aut Fang Zhao verfasserin aut Ru Zhou verfasserin aut In Chinese Journal of Physiology Wolters Kluwer Medknow Publications, 2021 65(2022), 4, Seite 187-198 (DE-627)664260969 (DE-600)2617104-1 26660059 nnns volume:65 year:2022 number:4 pages:187-198 https://doi.org/10.4103/0304-4920.354801 kostenfrei https://doaj.org/article/e95e444fbb414b55b2e7133278fe45bb kostenfrei http://www.cjphysiology.org/article.asp?issn=0304-4920;year=2022;volume=65;issue=4;spage=187;epage=198;aulast=Wang kostenfrei https://doaj.org/toc/0304-4920 Journal toc kostenfrei https://doaj.org/toc/2666-0059 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_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 65 2022 4 187-198
allfieldsSound	10.4103/0304-4920.354801 doi (DE-627)DOAJ033644101 (DE-599)DOAJe95e444fbb414b55b2e7133278fe45bb DE-627 ger DE-627 rakwb eng QP1-981 Jia-Ling Wang verfasserin aut 18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway. 18β-glycyrrhetinic acid endoplasmic reticulum stress-induced inflammation pulmonary arterial hypertension remodeling Physiology Hui Liu verfasserin aut Zhi-Cheng Jing verfasserin aut Fang Zhao verfasserin aut Ru Zhou verfasserin aut In Chinese Journal of Physiology Wolters Kluwer Medknow Publications, 2021 65(2022), 4, Seite 187-198 (DE-627)664260969 (DE-600)2617104-1 26660059 nnns volume:65 year:2022 number:4 pages:187-198 https://doi.org/10.4103/0304-4920.354801 kostenfrei https://doaj.org/article/e95e444fbb414b55b2e7133278fe45bb kostenfrei http://www.cjphysiology.org/article.asp?issn=0304-4920;year=2022;volume=65;issue=4;spage=187;epage=198;aulast=Wang kostenfrei https://doaj.org/toc/0304-4920 Journal toc kostenfrei https://doaj.org/toc/2666-0059 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_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 65 2022 4 187-198
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source	In Chinese Journal of Physiology 65(2022), 4, Seite 187-198 volume:65 year:2022 number:4 pages:187-198
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author	Jia-Ling Wang
spellingShingle	Jia-Ling Wang misc QP1-981 misc 18β-glycyrrhetinic acid misc endoplasmic reticulum stress-induced inflammation misc pulmonary arterial hypertension misc remodeling misc Physiology 18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling
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topic_title	QP1-981 18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling 18β-glycyrrhetinic acid endoplasmic reticulum stress-induced inflammation pulmonary arterial hypertension remodeling
topic	misc QP1-981 misc 18β-glycyrrhetinic acid misc endoplasmic reticulum stress-induced inflammation misc pulmonary arterial hypertension misc remodeling misc Physiology
topic_unstemmed	misc QP1-981 misc 18β-glycyrrhetinic acid misc endoplasmic reticulum stress-induced inflammation misc pulmonary arterial hypertension misc remodeling misc Physiology
topic_browse	misc QP1-981 misc 18β-glycyrrhetinic acid misc endoplasmic reticulum stress-induced inflammation misc pulmonary arterial hypertension misc remodeling misc Physiology
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title	18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling
ctrlnum	(DE-627)DOAJ033644101 (DE-599)DOAJe95e444fbb414b55b2e7133278fe45bb
title_full	18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling
author_sort	Jia-Ling Wang
journal	Chinese Journal of Physiology
journalStr	Chinese Journal of Physiology
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author_browse	Jia-Ling Wang Hui Liu Zhi-Cheng Jing Fang Zhao Ru Zhou
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format_se	Elektronische Aufsätze
author-letter	Jia-Ling Wang
doi_str_mv	10.4103/0304-4920.354801
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title_sort	18β-glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through perk/eif2α/nf-κb signaling
callnumber	QP1-981
title_auth	18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling
abstract	Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway.
abstractGer	Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway.
abstract_unstemmed	Endoplasmic reticulum stress (ERS)-induced inflammation participates in the occurrence of pulmonary arterial hypertension (PAH) by promoting pulmonary vascular remodeling, which involved in the activation of PERK/eIF2α/NF-κB signaling pathway. 18β-Glycyrrhetinic acid (18β-GA) has been found efficacious for attenuating PAH through its anti-remodeling effects in our previous research and it remains unclear whether 18β-GA has an effect on the remodeling caused by ERS-induced inflammation. In this study, we made observations in monocrotaline-induced PAH rats and found improvement of hemodynamic and histopathological parameters, decreases in the right ventricular hypertrophy index, and alleviation of pulmonary vascular remodeling after 18β-GA administration in vivo. Moreover, 18β-GA could significantly inhibit the proliferation and DNA synthesis of human pulmonary arterial smooth muscle cells (HPASMCs) induced by platelet-derived growth factor BB. At the cellular and molecular levels, we found that 18β-GA could significantly reduce the accumulation of misfolded protein in rat lung tissue, inhibit ERS activation, reduce the expression of GRP78, p-PERK, p-eIF2α, and p-NF-κB p65, and increase IκB protein expression. 18β-GA could inhibit the migration of NF-κB into the nucleus, reduce the contents of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and monocyte chemoattractant protein-1 (MCP-1) in the culture supernatant of HPASMCs, and reduce GRP78, p-PERK, p-eIF2α, p-NF-κB p65, TNF-α, IL-6, and MCP-1 protein expression, increase IκB protein expression in HPASMCs. According to what we observed, this study indicated that 18β-GA could treat PAH, which is related to the inhibition of PERK/eIF2α/NF-κB signaling pathway.
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title_short	18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling
url	https://doi.org/10.4103/0304-4920.354801 https://doaj.org/article/e95e444fbb414b55b2e7133278fe45bb http://www.cjphysiology.org/article.asp?issn=0304-4920;year=2022;volume=65;issue=4;spage=187;epage=198;aulast=Wang https://doaj.org/toc/0304-4920 https://doaj.org/toc/2666-0059
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author2	Hui Liu Zhi-Cheng Jing Fang Zhao Ru Zhou
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up_date	2024-07-03T18:54:14.686Z
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18β-Glycyrrhetinic acid ameliorates endoplasmic reticulum stress-induced inflammation in pulmonary arterial hypertension through PERK/eIF2α/NF-κB signaling

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