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Immunomodulatory and Anti-Inflammatory Activities of Natural Compounds with Adaptogenic Potential

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Medicinal Chemistry".

Deadline for manuscript submissions: 15 June 2026 | Viewed by 1442

Special Issue Editors


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Guest Editor
Department of Pharmaceutical Botany and Pharmacognosy, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, 85-094 Bydgoszcz, Poland
Interests: phytochemicals; drug interactions; plant-based immunostimulants; phytochemical analysis

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Guest Editor Assistant
Department of Pharmaceutical Botany and Pharmacognosy, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, 85-094 Bydgoszcz, Poland
Interests: adaptogens; natural products; anti-inflammatory activity; LC-MS; gut microbiota; oxidative stress; enzyme inhibition; chronic diseases

Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to this Special Issue, which aims to explore the immunomodulatory and anti-inflammatory properties of natural compounds, with a particular focus on substances traditionally recognized as adaptogens. Natural compounds have long been used in various traditional medical systems to modulate physiological responses to stress, enhance immune function, and reduce inflammation, all of which are closely inter-related mechanisms.

This Special Issue seeks to bridge the gap between traditional knowledge and modern biomedical research by focusing on phytochemicals, herbal preparations, and bioactive plant metabolites that impact the regulation of the immune system and inflammation-related pathways. We welcome submissions investigating the molecular mechanisms, preclinical and clinical effects, and potential therapeutic applications of such substances in the context of immune-related and inflammatory disorders.

For this Special Issue, we welcome original research articles and reviews in areas of research including (but not limited to) the following:

  • Anti-inflammatory pathways of natural compounds;
  • Adaptogenic effects and immune homeostasis;
  • Herbal immunostimulants in infection or stress response;
  • Clinical applications of plant-derived immunomodulators;
  • Synergistic or combinatorial effects with pharmaceuticals;
  • Systems biology approaches to adaptogen research;
  • Chemical analysis and identification of phytochemicals (LC-MS, NMR, TLC).

We look forward to receiving your contributions.

Prof. Dr. Daniel Załuski
Guest Editor

Dr. Jakub Gębalski
Guest Editor Assistant

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • adaptogens
  • immunomodulation
  • inflammation
  • phytochemicals
  • herbal medicine
  • cytokines
  • oxidative stress

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Published Papers (1 paper)

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Research

12 pages, 530 KB  
Article
Eleutherococcus senticosus Fruit Extract Stimulates the Membrane Potential of the Trachea and Small Intestine in Rabbits
by Filip Graczyk, Elżbieta Piskorska, Dorota Gawenda-Kempczyńska, Krystian Krolik, Jakub Gębalski, Dorota Olszewska-Słonina, Aneta Kondrzycka-Dąda, Magdalena Wójciak, Orazio Taglialatela-Scafati, Robert Verpoorte and Daniel Załuski
Molecules 2025, 30(20), 4041; https://doi.org/10.3390/molecules30204041 - 10 Oct 2025
Viewed by 1097
Abstract
Background: Eleutherococcus senticosus (Rupr. et Maxim.) Maxim., widely used in Russian and Chinese traditional medicine for its anti-inflammatory activity, contains bioactive compounds capable of stabilizing epithelial function and reducing inflammation. Despite prior research on its effects in the colon, the impact and mechanism [...] Read more.
Background: Eleutherococcus senticosus (Rupr. et Maxim.) Maxim., widely used in Russian and Chinese traditional medicine for its anti-inflammatory activity, contains bioactive compounds capable of stabilizing epithelial function and reducing inflammation. Despite prior research on its effects in the colon, the impact and mechanism of action of E. senticosus fruit extract on epithelial tissues of the upper digestive and respiratory tract remains unexplored. Objectives: This study aimed to evaluate the influence of E. senticosus fruit extract on the transepithelial electrical potential and resistance in the tracheal and small intestinal epithelium of rabbits. In addition, the chemical composition of the extract was also profiled by the means of UHPLC-DAD-MS. Methods: Tissue segments from the trachea and small intestine of New Zealand white male rabbits were examined using the Ussing chamber technique. Three concentrations of E. senticosus fruit extract (0.001, 0.1, 10 mg/100 mL) were applied, and changes in transepithelial electrical potential (dPD) and resistance (R) were recorded. Chemical analysis of the extract was conducted using UHPLC-DAD-MS. Results: For the first time, we have discovered that the E. senticosus extract increased membrane resistance in tracheal tissue, suggesting enhanced barrier integrity. In contrast, a slight decrease in resistance was observed in small intestinal tissue. UHPLC-DAD-MS confirmed the presence of chlorogenic acid, dicaffeoylquinic acids, quercetin derivatives, and myo-inositol, compounds known for their antioxidant, anti-inflammatory, and membrane-stabilizing effects. Conclusions: The differential response of respiratory and intestinal epithelium to the E. senticosus extract highlights its tissue-specific action and supports its traditional use in the prevention and treatment of diseases characterized by epithelial barrier dysfunction, such as asthma, COPD, and Crohn’s disease. Full article
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