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Natural Product and Enzyme Inhibition for Disease Management

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Bioactives and Nutraceuticals".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 770

Special Issue Editors


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Guest Editor
Department of Biology Education, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu 41566, Republic of Korea
Interests: bioactive compounds; natural sources; enzyme inhibition; drug discovery
Department of Pharmacognosy, College of Pharmacy, Korea University, Sejong, Republic of Korea
Interests: metabolomic; natural product chemistry; phytochemistry; pharmacognosy; secondary metabolites; pharmacological effect
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Special Issue Information

Dear Colleagues,

Bioactive compounds from natural sources have gained significant attention for their potential therapeutic applications, particularly in the inhibition of enzymes associated with human diseases. These compounds, derived from plants, marine organisms, and microorganisms, offer diverse chemical structures for drug discovery and development. The inhibition of disease-relevant enzymes is an essential strategy in the treatment of various conditions, including cancer, diabetes, and infectious and cardiovascular diseases.

Research involves both in vitro and in silico approaches to understand the mechanisms and efficacy of these bioactive compounds: the former allow for the direct assessment of enzyme inhibition and the compounds’ effect on cellular processes, while the latter, including molecular docking and molecular dynamics simulations, provide insights into the binding interactions and predict the compounds’ biological activity.

Combining these approaches enables a comprehensive evaluation of bioactive compounds, facilitating the identification of promising natural candidates for drug development. The combination of natural product research with modern technological advances holds the promise of discovering new and effective treatments for enzymatic dysregulation-driven diseases.

Dr. Viet Phong Nguyen
Dr. Le Ba Vinh
Guest Editors

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Keywords

  • bioactive compounds
  • natural sources
  • enzyme inhibition
  • drug discovery
  • cancer
  • cardiovascular diseases

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Published Papers (1 paper)

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Research

14 pages, 1410 KB  
Article
Phytochemical Investigation and Tyrosinase Inhibitory Activity of Compounds from the Aerial Parts of Mussaenda pubescens Dryand
by Le Ba Vinh, Dinh Thi Quynh Anh, Nguyen Quoc Tuan and Nguyen Ngoc Linh
Int. J. Mol. Sci. 2026, 27(5), 2103; https://doi.org/10.3390/ijms27052103 - 24 Feb 2026
Viewed by 277
Abstract
Mussaenda pubescens Dryand. is a medicinal plant widely used in traditional medicine in Southeast Asia for the treatment of inflammation, skin-related disorders, and other health conditions. Despite its ethnopharmacological significance, scientific evidence regarding its bioactive constituents remains limited. In particular, no comprehensive study [...] Read more.
Mussaenda pubescens Dryand. is a medicinal plant widely used in traditional medicine in Southeast Asia for the treatment of inflammation, skin-related disorders, and other health conditions. Despite its ethnopharmacological significance, scientific evidence regarding its bioactive constituents remains limited. In particular, no comprehensive study has been reported on the chemical constituents of M. pubescens in relation to tyrosinase-associated activity. In the present study, one new compound (1) and six known compounds (27) were isolated from the ethanol extract of the aerial parts of M. pubescens using various chromatographic techniques. Their structures were elucidated on the basis of extensive spectroscopic analyses, including NMR and HR-ESI-MS data. All isolated compounds were evaluated for their tyrosinase inhibitory activity. The results showed that compounds 1, 4, and 5 exhibited significant inhibitory effects, with IC50 values of 62.39 ± 0.48, 62.55 ± 0.49, and 178.06 ± 0.89 µM, respectively. The underlying inhibitory mechanisms against tyrosinase were further investigated through enzyme kinetic studies and molecular docking simulations. Enzyme kinetic analysis revealed that compound 1 acted as a competitive inhibitor of tyrosinase, with an inhibition constant (Ki) value of 22.28 ± 0.73 µM. Overall, M. pubescens was found to contain a diverse range of secondary metabolites, including iridoid glucosides, saponins, and flavonoids, which exhibited notable tyrosinase inhibitory activity. These findings provide the first chemical insight into the tyrosinase-related bioactivity of M. pubescens and support its potential application as a natural source of tyrosinase inhibitors for pharmaceutical and cosmetic purposes. Full article
(This article belongs to the Special Issue Natural Product and Enzyme Inhibition for Disease Management)
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