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Bioassays in Natural Product Research: Strategies and Methods in the Search for Anti-inflammatory and Antimicrobial Activity
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.ORCID iD: 0000-0001-9070-6944
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
2014 (English)In: Phytochemical Analysis, ISSN 0958-0344, E-ISSN 1099-1565, Vol. 25, no 1, 13-28 p.Article, review/survey (Refereed) Published
Abstract [en]

Introduction: Identifying bioactive molecules from complex biomasses requires careful selection and execution of relevant bioassays in the various stages of the discovery process of potential leads and targets.

Objective: The aim of this review is to share our long-term experience in bioassay-guided isolation, and mechanistic studies, of bioactive compounds from different organisms in nature with emphasis on anti-inflammatory and antimicrobial activity.

Methods: In the search for anti-inflammatory activity, in vivo and in vitro model combinations with enzymes and cells involved in the inflammatory process have been used, such as cyclooxygenases, human neutrophils and human cancer cell lines. Methods concerning adsorption and perforation of bacteria, fungi, human cells and model membranes, have been developed and optimised, with emphasis on antimicrobial peptides and their interaction with the membrane target, in particular their ability to distinguish host from pathogen.

Results: A long-term research has provided experience of selection and combination of bioassay models, which has led to an increased understanding of ethnopharmacological and ecological observations, together with in-depth knowledge of mode of action of isolated compounds.

Conclusion: A more multidisciplinary approach and a higher degree of fundamental research in development of bioassays are often necessary to identify and to fully understand the mode of action of bioactive molecules with novel structure-activity relationships from natural sources. 

Selection and execution of relevant bioassays are critical in the various stages of the discovery process of potential drug leads and targets from natural sources. The aim of this review is to share our long-term experience in bioassay-guided isolation of bioactive compounds from different organisms in nature with emphasis on anti-inflammatory and antimicrobial activity. We conclude that an increased multidisciplinary approach and a higher degree of fundamental research in development of bioassays are essential to discover complex structure-activity relationships.

Place, publisher, year, edition, pages
2014. Vol. 25, no 1, 13-28 p.
Keyword [en]
bioassay, natural product, anti-inflammatory, antibacterial, antimicrobial, peptide, cytotoxicity, membrane, liposome
National Category
Medicinal Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-216247DOI: 10.1002/pca.2468ISI: 000328554500002OAI: oai:DiVA.org:uu-216247DiVA: diva2:689350
Available from: 2014-01-20 Created: 2014-01-20 Last updated: 2017-12-06Bibliographically approved

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Strömstedt, Adam A.Bohlin, Lars

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