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The Role of Natural Products in Drug Discovery: 2nd Edition

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

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1402

Special Issue Editors

Special Issue Information

Dear Colleagues,

Natural products often result from an optimized evolutionary process in which chemicals have been under the selective forces of coevolution, where organisms produce substances in the presence of their predators. These natural compounds have been utilized by humans since ancient times to treat and cure their diseases. Of the existing plants in the world, most of which are unknown from a scientific point of view, only about 5% of the approximately 250,000-500,000 species have been biologically studied and evaluated. Natural products are often phenolic compounds, flavonoids, alkaloids, or terpenes—secondary plant metabolites that may provide several benefits to our health. These benefits include cosmetic action, cardioprotective effects, anti-inflammatory activity, the treatment of cancer, etc.

More than half of the world's population uses medicines of natural origin, and approximately half of the commercially available drugs are of natural origin or based on natural pharmacophores. There is a popular illusion that a natural compound is both effective and completely safe. Pharmaceutical industries find fertile ground in this untruth and exploit the lack of mass knowledge. In addition, the rich chemical universe associated with more advantageous physicochemical properties for the medicinal use of natural products makes them more attractive than purely synthetic ones. Despite the difficulties in the extraction, isolation, and characterization of their molecular structure, and although the sources (mainly the marine ones) are not always abundantly available, the pharmaceutical market generates billions of dollars selling natural drugs. In recent decades, this profit has shown growth. On the other hand, the planet's natural resources have immense wealth that is still unexplored. This issue will consist of articles that report different studies carried out in relation to natural drug research in order to provide relevant information on new drug candidate compounds that use bioactive natural products.

Prof. Dr. Luciana Scotti
Dr. Marcus Tullius Scotti
Guest Editors

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Keywords

  • natural product
  • medicinal chemistry
  • drug design
  • drug discovery
  • pharmacy
  • chemistry

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Published Papers (1 paper)

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Review

45 pages, 4368 KB  
Review
Interactions Between Nutraceuticals and α-Synuclein Conformational States: Molecular Mechanisms and Neuroprotective Implications in Parkinson’s Disease
by Bruna Amenta, Rosalba Minervini, Maria Laura Matrella and Tiziana Cocco
Int. J. Mol. Sci. 2026, 27(3), 1324; https://doi.org/10.3390/ijms27031324 - 28 Jan 2026
Cited by 1 | Viewed by 1099
Abstract
Synucleinopathies, including Parkinson’s disease (PD), are neurodegenerative disorders characterized by aberrant aggregation of α-synuclein (α-syn), a presynaptic protein with an intrinsic disorder nature. The transition of soluble monomers into oligomeric and fibrillar species represents a key molecular event driving neuronal dysfunction and neurodegeneration. [...] Read more.
Synucleinopathies, including Parkinson’s disease (PD), are neurodegenerative disorders characterized by aberrant aggregation of α-synuclein (α-syn), a presynaptic protein with an intrinsic disorder nature. The transition of soluble monomers into oligomeric and fibrillar species represents a key molecular event driving neuronal dysfunction and neurodegeneration. Emerging evidence suggests that nutraceuticals, bioactive compounds derived from dietary sources, can modulate α-syn aggregation at multiple conformational stages. Polyphenols, alkaloids, ginsenosides, and food-derived peptides interfere with α-syn structure and assembly, suppressing the formation of toxic oligomer species and promoting the clearance of misfolded assemblies. Despite this potential, clinical translational of nutraceuticals is currently limited by poor systemic bioavailability and restricted central nervous system penetration due to blood–brain barrier constraints, which have largely confined research to preclinical studies. In this context, this review summarizes current knowledge of nutraceutical interventions targeting the conformational landscape of α-syn and highlighting both direct and indirect molecular mechanisms with involved in aggregation-prone species. Furthermore, we critically examine key challenges related to bioavailability and clinical translation, focusing on advanced delivery systems and precision-based approaches to enhance neuroprotective efficacy and support the potential of nutraceuticals as novel or adjunctive therapeutic strategies for PD. Full article
(This article belongs to the Special Issue The Role of Natural Products in Drug Discovery: 2nd Edition)
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