Lupeol protects against cardiac hypertrophy via TLR4-PI3K-Akt-NF-κB pathways

Inflammation and apoptosis are main pathological processes that lead to the development of cardiac hypertrophy. Lupeol, a natural triterpenoid, has shown anti-inflammatory and anti-apoptotic activities as well as potential protective effects on cardiovascular diseases. In this study we investigated...

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Veröffentlicht in:Acta pharmacologica Sinica 2022-08, Vol.43 (8), p.1989-2002
Hauptverfasser: Li, Dan, Guo, Ying-ying, Cen, Xian-feng, Qiu, Hong-liang, Chen, Si, Zeng, Xiao-feng, Zeng, Qian, Xu, Man, Tang, Qi-zhu
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container_end_page 2002
container_issue 8
container_start_page 1989
container_title Acta pharmacologica Sinica
container_volume 43
creator Li, Dan
Guo, Ying-ying
Cen, Xian-feng
Qiu, Hong-liang
Chen, Si
Zeng, Xiao-feng
Zeng, Qian
Xu, Man
Tang, Qi-zhu
description Inflammation and apoptosis are main pathological processes that lead to the development of cardiac hypertrophy. Lupeol, a natural triterpenoid, has shown anti-inflammatory and anti-apoptotic activities as well as potential protective effects on cardiovascular diseases. In this study we investigated whether lupeol attenuated cardiac hypertrophy and fibrosis induced by pressure overload in vivo and in vitro, and explored the underlying mechanisms. Cardiac hypertrophy was induced in mice by transverse aortic constriction (TAC) surgery, and in neonatal rat cardiomyocytes (NRCMs) by stimulation with phenylephrine (PE) in vitro. We showed that administration of lupeol (50 mg ·kg -1 · d -1 , i.g., for 4 weeks) prevented the morphological changes and cardiac dysfunction and remodeling in TAC mice, and treatment with lupeol (50 μg/mL) significantly attenuated the hypertrophy of PE-stimulated NRCMs, and blunted the upregulated hypertrophic markers ANP, BNP, and β-MHC. Furthermore, lupeol treatment attenuated the apoptotic and inflammatory responses in the heart tissue. We revealed that lupeol attenuated the inflammatory responses including the reduction of inflammatory cytokines and inhibition of NF-κB p65 nuclear translocation, which was mediated by the TLR4-PI3K-Akt signaling. Administration of a PI3K/Akt agonist 740 Y-P reversed the protective effects of lupeol in TAC mice as well as in PE-stimulated NRCMs. Moreover, pre-treatment with a TLR4 agonist RS 09 abolished the protective effects of lupeol and restored the inhibition of PI3K-Akt-NF-κB signaling by lupeol in PE-stimulated NRCMs. Collectively, our results demonstrate that the lupeol protects against cardiac hypertrophy via anti-inflammatory mechanisms, which results from inhibiting the TLR4-PI3K-Akt-NF-κB signaling.
doi_str_mv 10.1038/s41401-021-00820-3
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Lupeol, a natural triterpenoid, has shown anti-inflammatory and anti-apoptotic activities as well as potential protective effects on cardiovascular diseases. In this study we investigated whether lupeol attenuated cardiac hypertrophy and fibrosis induced by pressure overload in vivo and in vitro, and explored the underlying mechanisms. Cardiac hypertrophy was induced in mice by transverse aortic constriction (TAC) surgery, and in neonatal rat cardiomyocytes (NRCMs) by stimulation with phenylephrine (PE) in vitro. We showed that administration of lupeol (50 mg ·kg -1 · d -1 , i.g., for 4 weeks) prevented the morphological changes and cardiac dysfunction and remodeling in TAC mice, and treatment with lupeol (50 μg/mL) significantly attenuated the hypertrophy of PE-stimulated NRCMs, and blunted the upregulated hypertrophic markers ANP, BNP, and β-MHC. Furthermore, lupeol treatment attenuated the apoptotic and inflammatory responses in the heart tissue. We revealed that lupeol attenuated the inflammatory responses including the reduction of inflammatory cytokines and inhibition of NF-κB p65 nuclear translocation, which was mediated by the TLR4-PI3K-Akt signaling. Administration of a PI3K/Akt agonist 740 Y-P reversed the protective effects of lupeol in TAC mice as well as in PE-stimulated NRCMs. Moreover, pre-treatment with a TLR4 agonist RS 09 abolished the protective effects of lupeol and restored the inhibition of PI3K-Akt-NF-κB signaling by lupeol in PE-stimulated NRCMs. Collectively, our results demonstrate that the lupeol protects against cardiac hypertrophy via anti-inflammatory mechanisms, which results from inhibiting the TLR4-PI3K-Akt-NF-κB signaling.</description><identifier>ISSN: 1671-4083</identifier><identifier>EISSN: 1745-7254</identifier><identifier>DOI: 10.1038/s41401-021-00820-3</identifier><identifier>PMID: 34916609</identifier><language>eng</language><publisher>Singapore: Springer Nature Singapore</publisher><subject>1-Phosphatidylinositol 3-kinase ; Acids ; Agonists ; AKT protein ; Animals ; Aorta ; Apoptosis ; Biomedical and Life Sciences ; Biomedicine ; Cardiomegaly - drug therapy ; Cardiomegaly - metabolism ; Cardiomegaly - prevention &amp; control ; Cardiomyocytes ; Cardiovascular diseases ; Cytokines ; Cytotoxicity ; Fibrosis ; Genes ; Herbal medicine ; Hypertrophy ; Immunology ; Inflammation ; Internal Medicine ; Kinases ; Laboratory animals ; Medical Microbiology ; Mice ; Mice, Inbred C57BL ; Myocytes, Cardiac ; Neonates ; NF-kappa B - metabolism ; NF-κB protein ; Nuclear transport ; Oxidative stress ; Pentacyclic Triterpenes - pharmacology ; Pharmacology/Toxicology ; Phenylephrine ; Phosphatidylinositol 3-Kinases - metabolism ; Proto-Oncogene Proteins c-akt - metabolism ; Rats ; Signal Transduction ; TLR4 protein ; Toll-Like Receptor 4 - metabolism ; Toll-like receptors ; Vaccine</subject><ispartof>Acta pharmacologica Sinica, 2022-08, Vol.43 (8), p.1989-2002</ispartof><rights>The Author(s), under exclusive licence to CPS and SIMM 2021</rights><rights>2021. 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Lupeol, a natural triterpenoid, has shown anti-inflammatory and anti-apoptotic activities as well as potential protective effects on cardiovascular diseases. In this study we investigated whether lupeol attenuated cardiac hypertrophy and fibrosis induced by pressure overload in vivo and in vitro, and explored the underlying mechanisms. Cardiac hypertrophy was induced in mice by transverse aortic constriction (TAC) surgery, and in neonatal rat cardiomyocytes (NRCMs) by stimulation with phenylephrine (PE) in vitro. We showed that administration of lupeol (50 mg ·kg -1 · d -1 , i.g., for 4 weeks) prevented the morphological changes and cardiac dysfunction and remodeling in TAC mice, and treatment with lupeol (50 μg/mL) significantly attenuated the hypertrophy of PE-stimulated NRCMs, and blunted the upregulated hypertrophic markers ANP, BNP, and β-MHC. Furthermore, lupeol treatment attenuated the apoptotic and inflammatory responses in the heart tissue. We revealed that lupeol attenuated the inflammatory responses including the reduction of inflammatory cytokines and inhibition of NF-κB p65 nuclear translocation, which was mediated by the TLR4-PI3K-Akt signaling. Administration of a PI3K/Akt agonist 740 Y-P reversed the protective effects of lupeol in TAC mice as well as in PE-stimulated NRCMs. Moreover, pre-treatment with a TLR4 agonist RS 09 abolished the protective effects of lupeol and restored the inhibition of PI3K-Akt-NF-κB signaling by lupeol in PE-stimulated NRCMs. Collectively, our results demonstrate that the lupeol protects against cardiac hypertrophy via anti-inflammatory mechanisms, which results from inhibiting the TLR4-PI3K-Akt-NF-κB signaling.</description><subject>1-Phosphatidylinositol 3-kinase</subject><subject>Acids</subject><subject>Agonists</subject><subject>AKT protein</subject><subject>Animals</subject><subject>Aorta</subject><subject>Apoptosis</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Cardiomegaly - drug therapy</subject><subject>Cardiomegaly - metabolism</subject><subject>Cardiomegaly - prevention &amp; control</subject><subject>Cardiomyocytes</subject><subject>Cardiovascular diseases</subject><subject>Cytokines</subject><subject>Cytotoxicity</subject><subject>Fibrosis</subject><subject>Genes</subject><subject>Herbal medicine</subject><subject>Hypertrophy</subject><subject>Immunology</subject><subject>Inflammation</subject><subject>Internal Medicine</subject><subject>Kinases</subject><subject>Laboratory animals</subject><subject>Medical Microbiology</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Myocytes, Cardiac</subject><subject>Neonates</subject><subject>NF-kappa B - metabolism</subject><subject>NF-κB protein</subject><subject>Nuclear transport</subject><subject>Oxidative stress</subject><subject>Pentacyclic Triterpenes - pharmacology</subject><subject>Pharmacology/Toxicology</subject><subject>Phenylephrine</subject><subject>Phosphatidylinositol 3-Kinases - metabolism</subject><subject>Proto-Oncogene Proteins c-akt - metabolism</subject><subject>Rats</subject><subject>Signal Transduction</subject><subject>TLR4 protein</subject><subject>Toll-Like Receptor 4 - metabolism</subject><subject>Toll-like receptors</subject><subject>Vaccine</subject><issn>1671-4083</issn><issn>1745-7254</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kc1OGzEUhS1EVULoC7BAI7Hpxq3_xh5vkGhUCmr4EYK15fE4yYTJeLA9qfJqPESfCbdJU2DBwrqW73eP79EB4BCjLxjR4mtgmCEMEUkHFQRBugMGWLAcCpKz3XTnAkOGCroH9kOYI0QJxfIj2KNMYs6RHIDLcd9Z12Sdd9GaGDI91XUbYma0r2ptstmqsz56181W2bLW2d34lsGbC_oTnj5EeHUGfz99yzodZ7_0KhyADxPdBPtpU4fg_uz73egcjq9_XIxOx9AwwSI0RJa5LXGFy8IWnEokhDFa2NJMeEV4aZE2vKhseqpkzgwtkysmDUKTQmNJh-Bkrdv15cJWxrbR60Z1vl5ov1JO1-p1p61nauqWSlJGOSNJ4PNGwLvH3oaoFnUwtml0a10fFOEY8zwnUiT0-A06d71vk71ESS4F4kl0CMiaMt6F4O1kuwxG6k9aap2WSmmpv2kpmoaOXtrYjvyLJwF0DYTUaqfW___7Hdlnhvmgwg</recordid><startdate>20220801</startdate><enddate>20220801</enddate><creator>Li, Dan</creator><creator>Guo, Ying-ying</creator><creator>Cen, Xian-feng</creator><creator>Qiu, Hong-liang</creator><creator>Chen, Si</creator><creator>Zeng, Xiao-feng</creator><creator>Zeng, Qian</creator><creator>Xu, Man</creator><creator>Tang, Qi-zhu</creator><general>Springer Nature Singapore</general><general>Nature Publishing Group</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7QR</scope><scope>7T5</scope><scope>7TK</scope><scope>7TO</scope><scope>7U9</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20220801</creationdate><title>Lupeol protects against cardiac hypertrophy via TLR4-PI3K-Akt-NF-κB pathways</title><author>Li, Dan ; Guo, Ying-ying ; Cen, Xian-feng ; Qiu, Hong-liang ; Chen, Si ; Zeng, Xiao-feng ; Zeng, Qian ; Xu, Man ; Tang, Qi-zhu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c474t-c29b5eb1d1b8e8639077cca7ebcf6d26be0ac68dea7ed954c3b74549c00f8a193</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>1-Phosphatidylinositol 3-kinase</topic><topic>Acids</topic><topic>Agonists</topic><topic>AKT protein</topic><topic>Animals</topic><topic>Aorta</topic><topic>Apoptosis</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Cardiomegaly - drug therapy</topic><topic>Cardiomegaly - metabolism</topic><topic>Cardiomegaly - prevention &amp; control</topic><topic>Cardiomyocytes</topic><topic>Cardiovascular diseases</topic><topic>Cytokines</topic><topic>Cytotoxicity</topic><topic>Fibrosis</topic><topic>Genes</topic><topic>Herbal medicine</topic><topic>Hypertrophy</topic><topic>Immunology</topic><topic>Inflammation</topic><topic>Internal Medicine</topic><topic>Kinases</topic><topic>Laboratory animals</topic><topic>Medical Microbiology</topic><topic>Mice</topic><topic>Mice, Inbred C57BL</topic><topic>Myocytes, Cardiac</topic><topic>Neonates</topic><topic>NF-kappa B - metabolism</topic><topic>NF-κB protein</topic><topic>Nuclear transport</topic><topic>Oxidative stress</topic><topic>Pentacyclic Triterpenes - pharmacology</topic><topic>Pharmacology/Toxicology</topic><topic>Phenylephrine</topic><topic>Phosphatidylinositol 3-Kinases - metabolism</topic><topic>Proto-Oncogene Proteins c-akt - metabolism</topic><topic>Rats</topic><topic>Signal Transduction</topic><topic>TLR4 protein</topic><topic>Toll-Like Receptor 4 - metabolism</topic><topic>Toll-like receptors</topic><topic>Vaccine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Dan</creatorcontrib><creatorcontrib>Guo, Ying-ying</creatorcontrib><creatorcontrib>Cen, Xian-feng</creatorcontrib><creatorcontrib>Qiu, Hong-liang</creatorcontrib><creatorcontrib>Chen, Si</creatorcontrib><creatorcontrib>Zeng, Xiao-feng</creatorcontrib><creatorcontrib>Zeng, Qian</creatorcontrib><creatorcontrib>Xu, Man</creatorcontrib><creatorcontrib>Tang, Qi-zhu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium &amp; 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Lupeol, a natural triterpenoid, has shown anti-inflammatory and anti-apoptotic activities as well as potential protective effects on cardiovascular diseases. In this study we investigated whether lupeol attenuated cardiac hypertrophy and fibrosis induced by pressure overload in vivo and in vitro, and explored the underlying mechanisms. Cardiac hypertrophy was induced in mice by transverse aortic constriction (TAC) surgery, and in neonatal rat cardiomyocytes (NRCMs) by stimulation with phenylephrine (PE) in vitro. We showed that administration of lupeol (50 mg ·kg -1 · d -1 , i.g., for 4 weeks) prevented the morphological changes and cardiac dysfunction and remodeling in TAC mice, and treatment with lupeol (50 μg/mL) significantly attenuated the hypertrophy of PE-stimulated NRCMs, and blunted the upregulated hypertrophic markers ANP, BNP, and β-MHC. Furthermore, lupeol treatment attenuated the apoptotic and inflammatory responses in the heart tissue. We revealed that lupeol attenuated the inflammatory responses including the reduction of inflammatory cytokines and inhibition of NF-κB p65 nuclear translocation, which was mediated by the TLR4-PI3K-Akt signaling. Administration of a PI3K/Akt agonist 740 Y-P reversed the protective effects of lupeol in TAC mice as well as in PE-stimulated NRCMs. Moreover, pre-treatment with a TLR4 agonist RS 09 abolished the protective effects of lupeol and restored the inhibition of PI3K-Akt-NF-κB signaling by lupeol in PE-stimulated NRCMs. Collectively, our results demonstrate that the lupeol protects against cardiac hypertrophy via anti-inflammatory mechanisms, which results from inhibiting the TLR4-PI3K-Akt-NF-κB signaling.</abstract><cop>Singapore</cop><pub>Springer Nature Singapore</pub><pmid>34916609</pmid><doi>10.1038/s41401-021-00820-3</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record>
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subjects 1-Phosphatidylinositol 3-kinase
Acids
Agonists
AKT protein
Animals
Aorta
Apoptosis
Biomedical and Life Sciences
Biomedicine
Cardiomegaly - drug therapy
Cardiomegaly - metabolism
Cardiomegaly - prevention & control
Cardiomyocytes
Cardiovascular diseases
Cytokines
Cytotoxicity
Fibrosis
Genes
Herbal medicine
Hypertrophy
Immunology
Inflammation
Internal Medicine
Kinases
Laboratory animals
Medical Microbiology
Mice
Mice, Inbred C57BL
Myocytes, Cardiac
Neonates
NF-kappa B - metabolism
NF-κB protein
Nuclear transport
Oxidative stress
Pentacyclic Triterpenes - pharmacology
Pharmacology/Toxicology
Phenylephrine
Phosphatidylinositol 3-Kinases - metabolism
Proto-Oncogene Proteins c-akt - metabolism
Rats
Signal Transduction
TLR4 protein
Toll-Like Receptor 4 - metabolism
Toll-like receptors
Vaccine
title Lupeol protects against cardiac hypertrophy via TLR4-PI3K-Akt-NF-κB pathways
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