MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice

•CARAS is an airway syndrome that affects a large part of the world population.•MHTP synthetic alkaloid by oral and intranasal route inhibits eosinophils.•MHTP reduces the signs of rhinitis by acting on the H1 receptor.•MHTP reduces airway tissue remodeling of CARAS.•MHTP inhibits signal transductio...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:International immunopharmacology 2021-07, Vol.96, p.107590-107590, Article 107590
Hauptverfasser: Paiva Ferreira, Laércia K.D., Paiva Ferreira, Larissa A.M., Bezerra Barros, Grasiela C., Mozzini Monteiro, Talissa, de Araújo Silva, Luiz A., Pereira, Ramon de A., Figueiredo, Pedro T.R., Alves, Adriano Francisco, Rodrigues, Luís Cezar, Piuvezam, Marcia Regina
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 107590
container_issue
container_start_page 107590
container_title International immunopharmacology
container_volume 96
creator Paiva Ferreira, Laércia K.D.
Paiva Ferreira, Larissa A.M.
Bezerra Barros, Grasiela C.
Mozzini Monteiro, Talissa
de Araújo Silva, Luiz A.
Pereira, Ramon de A.
Figueiredo, Pedro T.R.
Alves, Adriano Francisco
Rodrigues, Luís Cezar
Piuvezam, Marcia Regina
description •CARAS is an airway syndrome that affects a large part of the world population.•MHTP synthetic alkaloid by oral and intranasal route inhibits eosinophils.•MHTP reduces the signs of rhinitis by acting on the H1 receptor.•MHTP reduces airway tissue remodeling of CARAS.•MHTP inhibits signal transduction of the p38/ERK1/2 MAPK pathways in granulocytes. The combined allergic rhinitis and asthma syndrome (CARAS) is a chronic airway inflammation of allergic individuals, with a type 2 immune response. Pharmacotherapy is based on drugs with relevant side effects. Thus, the goal of this study was to evaluate the synthetic alkaloid, MHTP in the experimental model of CARAS. Therefore, BALB/c mice were ovalbumin (OVA) -sensitized and -challenged and treated with MHTP by intranasal or oral routes. Treated animals showed a decrease (p 
doi_str_mv 10.1016/j.intimp.2021.107590
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2514592955</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1567576921002265</els_id><sourcerecordid>2553857336</sourcerecordid><originalsourceid>FETCH-LOGICAL-c436t-97aebd6a63776d2c8d0f3e1caaf49c57a34911eae7ce9e20837516b949d232203</originalsourceid><addsrcrecordid>eNp9kc9u1DAQxiMEoqXwBghZ4sKh2fWfOE4uSFXVUtRWVKicLa89Sbwk9tZ2qPZheFe8pHDgwGlG3_zmszVfUbwleEUwqdfblXXJTrsVxZRkSfAWPyuOSSOakgjMn-ee16Lkom6PilcxbjHOekVeFkeMNVw0mB4XP2-v7u9OkUJx79IAyWqkxu9q9NZkNSVws0oQkfbTxjoweTpC6DMWButsshEpl9WYhum3iQl-ApSG4Od-QMY_ugD9PKpkvUO-yxNAO9asL75ekzVFt2d31yja3qnRuh7tVBoe1R5Zhyar4XXxolNjhDdP9aT4dnlxf35V3nz59Pn87KbUFatT2QoFG1OrmglRG6obgzsGRCvVVa3mQrGqJQQUCA0tUNwwwUm9aavWUEYpZifFh8V3F_zDDDHJyUYN46gc-DlKyknFW9pyntH3_6BbP4f8_QPFD3dlrM5UtVA6-BgDdHIX7KTCXhIsD_HJrVzik4f45BJfXnv3ZD5vJjB_l_7klYGPCwD5Gj8sBBm1BafB2AA6SePt_1_4BQzergU</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2553857336</pqid></control><display><type>article</type><title>MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice</title><source>MEDLINE</source><source>ScienceDirect Journals (5 years ago - present)</source><creator>Paiva Ferreira, Laércia K.D. ; Paiva Ferreira, Larissa A.M. ; Bezerra Barros, Grasiela C. ; Mozzini Monteiro, Talissa ; de Araújo Silva, Luiz A. ; Pereira, Ramon de A. ; Figueiredo, Pedro T.R. ; Alves, Adriano Francisco ; Rodrigues, Luís Cezar ; Piuvezam, Marcia Regina</creator><creatorcontrib>Paiva Ferreira, Laércia K.D. ; Paiva Ferreira, Larissa A.M. ; Bezerra Barros, Grasiela C. ; Mozzini Monteiro, Talissa ; de Araújo Silva, Luiz A. ; Pereira, Ramon de A. ; Figueiredo, Pedro T.R. ; Alves, Adriano Francisco ; Rodrigues, Luís Cezar ; Piuvezam, Marcia Regina</creatorcontrib><description>•CARAS is an airway syndrome that affects a large part of the world population.•MHTP synthetic alkaloid by oral and intranasal route inhibits eosinophils.•MHTP reduces the signs of rhinitis by acting on the H1 receptor.•MHTP reduces airway tissue remodeling of CARAS.•MHTP inhibits signal transduction of the p38/ERK1/2 MAPK pathways in granulocytes. The combined allergic rhinitis and asthma syndrome (CARAS) is a chronic airway inflammation of allergic individuals, with a type 2 immune response. Pharmacotherapy is based on drugs with relevant side effects. Thus, the goal of this study was to evaluate the synthetic alkaloid, MHTP in the experimental model of CARAS. Therefore, BALB/c mice were ovalbumin (OVA) -sensitized and -challenged and treated with MHTP by intranasal or oral routes. Treated animals showed a decrease (p &lt; 0.05) of sneezing, nasal rubbings, and histamine nasal hyperactivity. Besides, MHTP presented binding energy and favorable interaction for adequate anchoring in the histamine H1 receptor. MHTP treatment inhibited the eosinophil migration into the nasal (NALF) and the bronchoalveolar (BALF) fluids. Histological analysis showed that the alkaloid decreased the inflammatory cells in the subepithelial and perivascular regions of nasal tissue and in the peribronchiolar and perivascular regions of lung tissue. The MHTP treatment also reduced the pulmonary hyperactivity by decreasing the smooth muscle layer hypertrophy and the collagen fiber deposition in the extracellular matrix. The immunomodulatory effect of the alkaloid was due to the decrease of cytokines like IL-5 and IL-17A (type 2 and 3), TSLP (epithelial), and the immunoregulatory cytokine, TGF-β. These MHTP effects on granulocytes were dependent on the p38/ERK1/2 MAP kinase signaling pathway axis. Indeed, the synthetic alkaloid reduced the frequency of activation of both kinases independent of the NF-κB (p65) pathway indicating that the molecule shut down the intracellular transduction signals underlie the cytokine gene transcription.</description><identifier>ISSN: 1567-5769</identifier><identifier>EISSN: 1878-1705</identifier><identifier>DOI: 10.1016/j.intimp.2021.107590</identifier><identifier>PMID: 33857802</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Airway inflammation ; Alkaloid ; Alkaloids ; Allergens - immunology ; Allergic rhinitis ; Animals ; Anti-Asthmatic Agents - therapeutic use ; Asthma ; Asthma - drug therapy ; Bronchus ; Collagen ; Computational fluid dynamics ; Cytokines ; Cytokines - metabolism ; Disease Models, Animal ; Drug therapy ; Eosinophils ; Extracellular matrix ; Extracellular signal-regulated kinase ; Female ; Histamine ; Histamine H1 receptors ; Humans ; Hyperactivity ; Hypertrophy ; Immune response ; Immune system ; Immunomodulation ; Immunoregulation ; Immunosuppressive agents ; Inflammation ; Interleukin 5 ; Kinases ; Leukocyte migration ; Leukocytes (eosinophilic) ; Leukocytes (granulocytic) ; MAP kinase ; MAP Kinase Signaling System ; MHTP ; Mice ; Mice, Inbred BALB C ; Molecular Docking Simulation ; Muscles ; NF-κB protein ; Ovalbumin ; Ovalbumin - immunology ; p38 Mitogen-Activated Protein Kinases - metabolism ; p38/ERK1/2 MAP kinase ; Receptors, Histamine H1 - metabolism ; Respiratory tract diseases ; Rhinitis ; Rhinitis, Allergic - drug therapy ; Shutdowns ; Side effects ; Signal transduction ; Signaling ; Smooth muscle ; Sneezing ; Tetrahydroisoquinolines - therapeutic use ; Transcription</subject><ispartof>International immunopharmacology, 2021-07, Vol.96, p.107590-107590, Article 107590</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright © 2021 Elsevier B.V. All rights reserved.</rights><rights>Copyright Elsevier BV Jul 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c436t-97aebd6a63776d2c8d0f3e1caaf49c57a34911eae7ce9e20837516b949d232203</citedby><cites>FETCH-LOGICAL-c436t-97aebd6a63776d2c8d0f3e1caaf49c57a34911eae7ce9e20837516b949d232203</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.intimp.2021.107590$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33857802$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Paiva Ferreira, Laércia K.D.</creatorcontrib><creatorcontrib>Paiva Ferreira, Larissa A.M.</creatorcontrib><creatorcontrib>Bezerra Barros, Grasiela C.</creatorcontrib><creatorcontrib>Mozzini Monteiro, Talissa</creatorcontrib><creatorcontrib>de Araújo Silva, Luiz A.</creatorcontrib><creatorcontrib>Pereira, Ramon de A.</creatorcontrib><creatorcontrib>Figueiredo, Pedro T.R.</creatorcontrib><creatorcontrib>Alves, Adriano Francisco</creatorcontrib><creatorcontrib>Rodrigues, Luís Cezar</creatorcontrib><creatorcontrib>Piuvezam, Marcia Regina</creatorcontrib><title>MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice</title><title>International immunopharmacology</title><addtitle>Int Immunopharmacol</addtitle><description>•CARAS is an airway syndrome that affects a large part of the world population.•MHTP synthetic alkaloid by oral and intranasal route inhibits eosinophils.•MHTP reduces the signs of rhinitis by acting on the H1 receptor.•MHTP reduces airway tissue remodeling of CARAS.•MHTP inhibits signal transduction of the p38/ERK1/2 MAPK pathways in granulocytes. The combined allergic rhinitis and asthma syndrome (CARAS) is a chronic airway inflammation of allergic individuals, with a type 2 immune response. Pharmacotherapy is based on drugs with relevant side effects. Thus, the goal of this study was to evaluate the synthetic alkaloid, MHTP in the experimental model of CARAS. Therefore, BALB/c mice were ovalbumin (OVA) -sensitized and -challenged and treated with MHTP by intranasal or oral routes. Treated animals showed a decrease (p &lt; 0.05) of sneezing, nasal rubbings, and histamine nasal hyperactivity. Besides, MHTP presented binding energy and favorable interaction for adequate anchoring in the histamine H1 receptor. MHTP treatment inhibited the eosinophil migration into the nasal (NALF) and the bronchoalveolar (BALF) fluids. Histological analysis showed that the alkaloid decreased the inflammatory cells in the subepithelial and perivascular regions of nasal tissue and in the peribronchiolar and perivascular regions of lung tissue. The MHTP treatment also reduced the pulmonary hyperactivity by decreasing the smooth muscle layer hypertrophy and the collagen fiber deposition in the extracellular matrix. The immunomodulatory effect of the alkaloid was due to the decrease of cytokines like IL-5 and IL-17A (type 2 and 3), TSLP (epithelial), and the immunoregulatory cytokine, TGF-β. These MHTP effects on granulocytes were dependent on the p38/ERK1/2 MAP kinase signaling pathway axis. Indeed, the synthetic alkaloid reduced the frequency of activation of both kinases independent of the NF-κB (p65) pathway indicating that the molecule shut down the intracellular transduction signals underlie the cytokine gene transcription.</description><subject>Airway inflammation</subject><subject>Alkaloid</subject><subject>Alkaloids</subject><subject>Allergens - immunology</subject><subject>Allergic rhinitis</subject><subject>Animals</subject><subject>Anti-Asthmatic Agents - therapeutic use</subject><subject>Asthma</subject><subject>Asthma - drug therapy</subject><subject>Bronchus</subject><subject>Collagen</subject><subject>Computational fluid dynamics</subject><subject>Cytokines</subject><subject>Cytokines - metabolism</subject><subject>Disease Models, Animal</subject><subject>Drug therapy</subject><subject>Eosinophils</subject><subject>Extracellular matrix</subject><subject>Extracellular signal-regulated kinase</subject><subject>Female</subject><subject>Histamine</subject><subject>Histamine H1 receptors</subject><subject>Humans</subject><subject>Hyperactivity</subject><subject>Hypertrophy</subject><subject>Immune response</subject><subject>Immune system</subject><subject>Immunomodulation</subject><subject>Immunoregulation</subject><subject>Immunosuppressive agents</subject><subject>Inflammation</subject><subject>Interleukin 5</subject><subject>Kinases</subject><subject>Leukocyte migration</subject><subject>Leukocytes (eosinophilic)</subject><subject>Leukocytes (granulocytic)</subject><subject>MAP kinase</subject><subject>MAP Kinase Signaling System</subject><subject>MHTP</subject><subject>Mice</subject><subject>Mice, Inbred BALB C</subject><subject>Molecular Docking Simulation</subject><subject>Muscles</subject><subject>NF-κB protein</subject><subject>Ovalbumin</subject><subject>Ovalbumin - immunology</subject><subject>p38 Mitogen-Activated Protein Kinases - metabolism</subject><subject>p38/ERK1/2 MAP kinase</subject><subject>Receptors, Histamine H1 - metabolism</subject><subject>Respiratory tract diseases</subject><subject>Rhinitis</subject><subject>Rhinitis, Allergic - drug therapy</subject><subject>Shutdowns</subject><subject>Side effects</subject><subject>Signal transduction</subject><subject>Signaling</subject><subject>Smooth muscle</subject><subject>Sneezing</subject><subject>Tetrahydroisoquinolines - therapeutic use</subject><subject>Transcription</subject><issn>1567-5769</issn><issn>1878-1705</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kc9u1DAQxiMEoqXwBghZ4sKh2fWfOE4uSFXVUtRWVKicLa89Sbwk9tZ2qPZheFe8pHDgwGlG3_zmszVfUbwleEUwqdfblXXJTrsVxZRkSfAWPyuOSSOakgjMn-ee16Lkom6PilcxbjHOekVeFkeMNVw0mB4XP2-v7u9OkUJx79IAyWqkxu9q9NZkNSVws0oQkfbTxjoweTpC6DMWButsshEpl9WYhum3iQl-ApSG4Od-QMY_ugD9PKpkvUO-yxNAO9asL75ekzVFt2d31yja3qnRuh7tVBoe1R5Zhyar4XXxolNjhDdP9aT4dnlxf35V3nz59Pn87KbUFatT2QoFG1OrmglRG6obgzsGRCvVVa3mQrGqJQQUCA0tUNwwwUm9aavWUEYpZifFh8V3F_zDDDHJyUYN46gc-DlKyknFW9pyntH3_6BbP4f8_QPFD3dlrM5UtVA6-BgDdHIX7KTCXhIsD_HJrVzik4f45BJfXnv3ZD5vJjB_l_7klYGPCwD5Gj8sBBm1BafB2AA6SePt_1_4BQzergU</recordid><startdate>202107</startdate><enddate>202107</enddate><creator>Paiva Ferreira, Laércia K.D.</creator><creator>Paiva Ferreira, Larissa A.M.</creator><creator>Bezerra Barros, Grasiela C.</creator><creator>Mozzini Monteiro, Talissa</creator><creator>de Araújo Silva, Luiz A.</creator><creator>Pereira, Ramon de A.</creator><creator>Figueiredo, Pedro T.R.</creator><creator>Alves, Adriano Francisco</creator><creator>Rodrigues, Luís Cezar</creator><creator>Piuvezam, Marcia Regina</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>6I.</scope><scope>AAFTH</scope><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>7QO</scope><scope>7T5</scope><scope>7U7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>202107</creationdate><title>MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice</title><author>Paiva Ferreira, Laércia K.D. ; Paiva Ferreira, Larissa A.M. ; Bezerra Barros, Grasiela C. ; Mozzini Monteiro, Talissa ; de Araújo Silva, Luiz A. ; Pereira, Ramon de A. ; Figueiredo, Pedro T.R. ; Alves, Adriano Francisco ; Rodrigues, Luís Cezar ; Piuvezam, Marcia Regina</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c436t-97aebd6a63776d2c8d0f3e1caaf49c57a34911eae7ce9e20837516b949d232203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Airway inflammation</topic><topic>Alkaloid</topic><topic>Alkaloids</topic><topic>Allergens - immunology</topic><topic>Allergic rhinitis</topic><topic>Animals</topic><topic>Anti-Asthmatic Agents - therapeutic use</topic><topic>Asthma</topic><topic>Asthma - drug therapy</topic><topic>Bronchus</topic><topic>Collagen</topic><topic>Computational fluid dynamics</topic><topic>Cytokines</topic><topic>Cytokines - metabolism</topic><topic>Disease Models, Animal</topic><topic>Drug therapy</topic><topic>Eosinophils</topic><topic>Extracellular matrix</topic><topic>Extracellular signal-regulated kinase</topic><topic>Female</topic><topic>Histamine</topic><topic>Histamine H1 receptors</topic><topic>Humans</topic><topic>Hyperactivity</topic><topic>Hypertrophy</topic><topic>Immune response</topic><topic>Immune system</topic><topic>Immunomodulation</topic><topic>Immunoregulation</topic><topic>Immunosuppressive agents</topic><topic>Inflammation</topic><topic>Interleukin 5</topic><topic>Kinases</topic><topic>Leukocyte migration</topic><topic>Leukocytes (eosinophilic)</topic><topic>Leukocytes (granulocytic)</topic><topic>MAP kinase</topic><topic>MAP Kinase Signaling System</topic><topic>MHTP</topic><topic>Mice</topic><topic>Mice, Inbred BALB C</topic><topic>Molecular Docking Simulation</topic><topic>Muscles</topic><topic>NF-κB protein</topic><topic>Ovalbumin</topic><topic>Ovalbumin - immunology</topic><topic>p38 Mitogen-Activated Protein Kinases - metabolism</topic><topic>p38/ERK1/2 MAP kinase</topic><topic>Receptors, Histamine H1 - metabolism</topic><topic>Respiratory tract diseases</topic><topic>Rhinitis</topic><topic>Rhinitis, Allergic - drug therapy</topic><topic>Shutdowns</topic><topic>Side effects</topic><topic>Signal transduction</topic><topic>Signaling</topic><topic>Smooth muscle</topic><topic>Sneezing</topic><topic>Tetrahydroisoquinolines - therapeutic use</topic><topic>Transcription</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Paiva Ferreira, Laércia K.D.</creatorcontrib><creatorcontrib>Paiva Ferreira, Larissa A.M.</creatorcontrib><creatorcontrib>Bezerra Barros, Grasiela C.</creatorcontrib><creatorcontrib>Mozzini Monteiro, Talissa</creatorcontrib><creatorcontrib>de Araújo Silva, Luiz A.</creatorcontrib><creatorcontrib>Pereira, Ramon de A.</creatorcontrib><creatorcontrib>Figueiredo, Pedro T.R.</creatorcontrib><creatorcontrib>Alves, Adriano Francisco</creatorcontrib><creatorcontrib>Rodrigues, Luís Cezar</creatorcontrib><creatorcontrib>Piuvezam, Marcia Regina</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Immunology Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>International immunopharmacology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Paiva Ferreira, Laércia K.D.</au><au>Paiva Ferreira, Larissa A.M.</au><au>Bezerra Barros, Grasiela C.</au><au>Mozzini Monteiro, Talissa</au><au>de Araújo Silva, Luiz A.</au><au>Pereira, Ramon de A.</au><au>Figueiredo, Pedro T.R.</au><au>Alves, Adriano Francisco</au><au>Rodrigues, Luís Cezar</au><au>Piuvezam, Marcia Regina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice</atitle><jtitle>International immunopharmacology</jtitle><addtitle>Int Immunopharmacol</addtitle><date>2021-07</date><risdate>2021</risdate><volume>96</volume><spage>107590</spage><epage>107590</epage><pages>107590-107590</pages><artnum>107590</artnum><issn>1567-5769</issn><eissn>1878-1705</eissn><abstract>•CARAS is an airway syndrome that affects a large part of the world population.•MHTP synthetic alkaloid by oral and intranasal route inhibits eosinophils.•MHTP reduces the signs of rhinitis by acting on the H1 receptor.•MHTP reduces airway tissue remodeling of CARAS.•MHTP inhibits signal transduction of the p38/ERK1/2 MAPK pathways in granulocytes. The combined allergic rhinitis and asthma syndrome (CARAS) is a chronic airway inflammation of allergic individuals, with a type 2 immune response. Pharmacotherapy is based on drugs with relevant side effects. Thus, the goal of this study was to evaluate the synthetic alkaloid, MHTP in the experimental model of CARAS. Therefore, BALB/c mice were ovalbumin (OVA) -sensitized and -challenged and treated with MHTP by intranasal or oral routes. Treated animals showed a decrease (p &lt; 0.05) of sneezing, nasal rubbings, and histamine nasal hyperactivity. Besides, MHTP presented binding energy and favorable interaction for adequate anchoring in the histamine H1 receptor. MHTP treatment inhibited the eosinophil migration into the nasal (NALF) and the bronchoalveolar (BALF) fluids. Histological analysis showed that the alkaloid decreased the inflammatory cells in the subepithelial and perivascular regions of nasal tissue and in the peribronchiolar and perivascular regions of lung tissue. The MHTP treatment also reduced the pulmonary hyperactivity by decreasing the smooth muscle layer hypertrophy and the collagen fiber deposition in the extracellular matrix. The immunomodulatory effect of the alkaloid was due to the decrease of cytokines like IL-5 and IL-17A (type 2 and 3), TSLP (epithelial), and the immunoregulatory cytokine, TGF-β. These MHTP effects on granulocytes were dependent on the p38/ERK1/2 MAP kinase signaling pathway axis. Indeed, the synthetic alkaloid reduced the frequency of activation of both kinases independent of the NF-κB (p65) pathway indicating that the molecule shut down the intracellular transduction signals underlie the cytokine gene transcription.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>33857802</pmid><doi>10.1016/j.intimp.2021.107590</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1567-5769
ispartof International immunopharmacology, 2021-07, Vol.96, p.107590-107590, Article 107590
issn 1567-5769
1878-1705
language eng
recordid cdi_proquest_miscellaneous_2514592955
source MEDLINE; ScienceDirect Journals (5 years ago - present)
subjects Airway inflammation
Alkaloid
Alkaloids
Allergens - immunology
Allergic rhinitis
Animals
Anti-Asthmatic Agents - therapeutic use
Asthma
Asthma - drug therapy
Bronchus
Collagen
Computational fluid dynamics
Cytokines
Cytokines - metabolism
Disease Models, Animal
Drug therapy
Eosinophils
Extracellular matrix
Extracellular signal-regulated kinase
Female
Histamine
Histamine H1 receptors
Humans
Hyperactivity
Hypertrophy
Immune response
Immune system
Immunomodulation
Immunoregulation
Immunosuppressive agents
Inflammation
Interleukin 5
Kinases
Leukocyte migration
Leukocytes (eosinophilic)
Leukocytes (granulocytic)
MAP kinase
MAP Kinase Signaling System
MHTP
Mice
Mice, Inbred BALB C
Molecular Docking Simulation
Muscles
NF-κB protein
Ovalbumin
Ovalbumin - immunology
p38 Mitogen-Activated Protein Kinases - metabolism
p38/ERK1/2 MAP kinase
Receptors, Histamine H1 - metabolism
Respiratory tract diseases
Rhinitis
Rhinitis, Allergic - drug therapy
Shutdowns
Side effects
Signal transduction
Signaling
Smooth muscle
Sneezing
Tetrahydroisoquinolines - therapeutic use
Transcription
title MHTP, a synthetic alkaloid, attenuates combined allergic rhinitis and asthma syndrome through downregulation of the p38/ERK1/2 MAPK signaling pathway in mice
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-11T08%3A02%3A29IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=MHTP,%20a%20synthetic%20alkaloid,%20attenuates%20combined%20allergic%20rhinitis%20and%20asthma%20syndrome%20through%20downregulation%20of%20the%20p38/ERK1/2%20MAPK%20signaling%20pathway%20in%20mice&rft.jtitle=International%20immunopharmacology&rft.au=Paiva%20Ferreira,%20La%C3%A9rcia%20K.D.&rft.date=2021-07&rft.volume=96&rft.spage=107590&rft.epage=107590&rft.pages=107590-107590&rft.artnum=107590&rft.issn=1567-5769&rft.eissn=1878-1705&rft_id=info:doi/10.1016/j.intimp.2021.107590&rft_dat=%3Cproquest_cross%3E2553857336%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2553857336&rft_id=info:pmid/33857802&rft_els_id=S1567576921002265&rfr_iscdi=true