Article Publish Status: FREE
Abstract Title:

Anti-inflammatory and Anti-oxidative Effects of Phytohustiland Root Extract ofL. on Macrophages.

Abstract Source:

Front Pharmacol. 2020 ;11:290. Epub 2020 Mar 17. PMID: 32256361

Abstract Author(s):

Gabriel A Bonaterra, Kevin Bronischewski, Pascal Hunold, Hans Schwarzbach, Ennio-U Heinrich, Careen Fink, Heba Aziz-Kalbhenn, Jürgen Müller, Ralf Kinscherf

Article Affiliation:

Gabriel A Bonaterra


Introduction: The medicinal plant marshmallowL. (), is used for the treatment of cough since centuries. Application of medicinal extracts of marshmallow roots shows immediate effects like a protective film on the inflamed mucosa. Because the soothing layer reduce irritation of the mucous system, a faster regeneration is supported by defense mechanisms required to protect the respiratory tract from environmental injury. Macrophages (MΦ), which belong to a group of multipurpose defensive cells, provide the first line of defense against mucosal invasive pathogens. The present study was performed to investigate, whether the herbal medicinal product has anti-inflammatory or anti-oxidative effects on pro-inflammatorily activated MΦor after oxidative stress induction. Special attention should be payed to elucidate the effects ofon the mechanism of intracellular defense as well as on migratory capacity of the MΦ.

Results: Treatment of PMA-differentiated human THP-1 MΦ with Phytohustilincreased their viability without affecting the cell number. Phytohustilor root extracts of(REAo) - an active component of Phytohustil- were able to protect human MΦ against HO-induced cytotoxicity and HO-induced ROS production. Phytohustil, REAo or diclofenac used as anti-inflammatory reference substance, inhibited the LPS-induced release of tumor necrosis factor-alpha (TNF-α) as well as of IL6 in MΦ. Treatment with Phytohustil, its excipients or REAo did not impair the mitochondrial membrane potential (MMP). Finally, Phytohustiland REAo activated the migratory capacity of MΦ.

Conclusion: The presentinvestigations indicate protective, i.e., anti-oxidative and anti-inflammatory effects of REAo and Phytohustil, additionally improving the migratory capacity of MΦ. These antiinflammatory effects were similar or even better than diclofenac. Thus, our data support and may explain the positive effect of Phytohustilobserved in patients during the therapy of inflamed buccal mucosal membranes or treatment of cough.

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Sayer Ji
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