Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro

Introduction:Althaea officinalis L.'s root extract (REA) has been used as a medicinal plant since ancient times to treat a cough. Applying REA leads to a protective film that induces a faster regeneration of the lesioned laryngopharyngeal mucosa caused by dry coughs. The buccopharyngeal mucosa...

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Main Authors: Gabriel A. Bonaterra, Johanna Schmitt, Kim Schneider, Hans Schwarzbach, Heba Aziz-Kalbhenn, Olaf Kelber, Jürgen Müller, Ralf Kinscherf
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-12-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2022.948248/full
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author Gabriel A. Bonaterra
Johanna Schmitt
Kim Schneider
Hans Schwarzbach
Heba Aziz-Kalbhenn
Olaf Kelber
Jürgen Müller
Ralf Kinscherf
author_facet Gabriel A. Bonaterra
Johanna Schmitt
Kim Schneider
Hans Schwarzbach
Heba Aziz-Kalbhenn
Olaf Kelber
Jürgen Müller
Ralf Kinscherf
author_sort Gabriel A. Bonaterra
collection DOAJ
description Introduction:Althaea officinalis L.'s root extract (REA) has been used as a medicinal plant since ancient times to treat a cough. Applying REA leads to a protective film that induces a faster regeneration of the lesioned laryngopharyngeal mucosa caused by dry coughs. The buccopharyngeal mucosa is a highly vascularized tissue. In this regard, anti-inflammatory/-oxidant phytochemicals that improve the repair of the lesion site, e.g., neovascularization in the wound, are critical for promoting healing. For this reason, it is essential to investigate the effects of Phytohustil® and REA on different cellular components of the mucosa under conditions similar to those found in the injured mucosa. Thus, this in vitro study investigated the anti-inflammatory/oxidative and pro-migratory properties of Phytohustil® cough syrup on vascular endothelial cells.Methods: Human umbilical vein endothelial cells (HUVEC) were pretreated (24 h) with Phytohustil®, its excipients, or REA, followed by incubation with hydrogen peroxide (H2O2; 1 h; pro-oxidative) or with lipopolysaccharides (LPS; 3 h; pro-inflammatory). Viability and cytotoxicity were measured by PrestoBlue® assay. Intracellular reactive oxygen species (ROS) were quantified with 20-70-dichlorofluorescein diacetate (DCFDA). The release of interleukin 6 (IL6) was determined by enzyme-linked immunosorbent assay (ELISA). The migratory capacity of HUVEC was measured using a scratch assay.Results: Our results show that Phytohustil®, its excipients and REA were not cytotoxic. Pretreatment of HUVEC (24 h) with Phytohustil® or REA inhibited the LPS-activated IL6 release. Phytohustil® or REA inhibited the H2O2-induced cytotoxicity and intracellular ROS production. Phytohustil® and REA significantly stimulated wound closure compared to the control.Conclusion: Our data show that Phytohustil® and REA have anti-inflammatory/-oxidant properties and improve the migratory capacity of vascular endothelial cells. These properties may contribute to the healing characteristics of Phytohustil® and support the benefit of Phytohustil® in patient’s treatment of irritated oral mucosa.
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spelling doaj.art-ede15cd96b694733be56f3f002744cc42022-12-22T04:41:17ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122022-12-011310.3389/fphar.2022.948248948248Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitroGabriel A. Bonaterra0Johanna Schmitt1Kim Schneider2Hans Schwarzbach3Heba Aziz-Kalbhenn4Olaf Kelber5Jürgen Müller6Ralf Kinscherf7Department of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, GermanyDepartment of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, GermanyDepartment of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, GermanyDepartment of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, GermanyBayer Consumer Health Division, Phytomedicines Supply and Development Center, Steigerwald Arzneimittelwerk GmbH, Darmstadt, GermanyBayer Consumer Health Division, Phytomedicines Supply and Development Center, Steigerwald Arzneimittelwerk GmbH, Darmstadt, GermanyBayer Consumer Health Division, Phytomedicines Supply and Development Center, Steigerwald Arzneimittelwerk GmbH, Darmstadt, GermanyDepartment of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, GermanyIntroduction:Althaea officinalis L.'s root extract (REA) has been used as a medicinal plant since ancient times to treat a cough. Applying REA leads to a protective film that induces a faster regeneration of the lesioned laryngopharyngeal mucosa caused by dry coughs. The buccopharyngeal mucosa is a highly vascularized tissue. In this regard, anti-inflammatory/-oxidant phytochemicals that improve the repair of the lesion site, e.g., neovascularization in the wound, are critical for promoting healing. For this reason, it is essential to investigate the effects of Phytohustil® and REA on different cellular components of the mucosa under conditions similar to those found in the injured mucosa. Thus, this in vitro study investigated the anti-inflammatory/oxidative and pro-migratory properties of Phytohustil® cough syrup on vascular endothelial cells.Methods: Human umbilical vein endothelial cells (HUVEC) were pretreated (24 h) with Phytohustil®, its excipients, or REA, followed by incubation with hydrogen peroxide (H2O2; 1 h; pro-oxidative) or with lipopolysaccharides (LPS; 3 h; pro-inflammatory). Viability and cytotoxicity were measured by PrestoBlue® assay. Intracellular reactive oxygen species (ROS) were quantified with 20-70-dichlorofluorescein diacetate (DCFDA). The release of interleukin 6 (IL6) was determined by enzyme-linked immunosorbent assay (ELISA). The migratory capacity of HUVEC was measured using a scratch assay.Results: Our results show that Phytohustil®, its excipients and REA were not cytotoxic. Pretreatment of HUVEC (24 h) with Phytohustil® or REA inhibited the LPS-activated IL6 release. Phytohustil® or REA inhibited the H2O2-induced cytotoxicity and intracellular ROS production. Phytohustil® and REA significantly stimulated wound closure compared to the control.Conclusion: Our data show that Phytohustil® and REA have anti-inflammatory/-oxidant properties and improve the migratory capacity of vascular endothelial cells. These properties may contribute to the healing characteristics of Phytohustil® and support the benefit of Phytohustil® in patient’s treatment of irritated oral mucosa.https://www.frontiersin.org/articles/10.3389/fphar.2022.948248/fullAlthaea officinalis L.anti-inflammatoryanti-oxidativeendothelial cellsmarshmallowmigration
spellingShingle Gabriel A. Bonaterra
Johanna Schmitt
Kim Schneider
Hans Schwarzbach
Heba Aziz-Kalbhenn
Olaf Kelber
Jürgen Müller
Ralf Kinscherf
Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro
Frontiers in Pharmacology
Althaea officinalis L.
anti-inflammatory
anti-oxidative
endothelial cells
marshmallow
migration
title Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro
title_full Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro
title_fullStr Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro
title_full_unstemmed Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro
title_short Phytohustil® and root extract of Althaea officinalis L. exert anti-inflammatory and anti-oxidative properties and improve the migratory capacity of endothelial cells in vitro
title_sort phytohustil r and root extract of althaea officinalis l exert anti inflammatory and anti oxidative properties and improve the migratory capacity of endothelial cells in vitro
topic Althaea officinalis L.
anti-inflammatory
anti-oxidative
endothelial cells
marshmallow
migration
url https://www.frontiersin.org/articles/10.3389/fphar.2022.948248/full
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