Cited by 75Phytochemicals and Medicinal PlantsPlant tissue culture and regenerationNatural product bioactivities and synthesis

2, 3-Dihydrowithaferin A-3β-O-sulfate, a new potential prodrug of withaferin A from aeroponically grown Withania somnifera

Xu, Ya-ming, Marron, Marilyn T., Seddon, Emily, McLaughlin, Steven P., Ray, Dennis T., Whitesell, Luke, Leslie Gunatilaka, A.A.·2009·Bioorganic & Medicinal Chemistry

Abstract

Preparations of the roots of the medicinal plant Withania somnifera (L.) Dunal commonly called ashwagandha have been used for millennia in the Ayurvedic medical tradition of India as a general tonic to relieve stress and enhance health, especially in the elderly. In modern times, ashwagandha has been shown to possess intriguing antiangiogenic and anticancer activity, largely attributable to the presence of the steroidal lactone withaferin A as the major constituent. When cultured using the aeroponic technique, however, this plant was found to produce a new natural product, 2,3-dihydrowithaferin A-3beta-O-sulfate (1), as the predominant constituent of methanolic extracts prepared from aerial tissues. The characteristic bioactivities exhibited by 1 including inhibition of cancer cell proliferation/survival, disruption of cytoskeletal organization and induction of the cellular heat-shock response paralleled those displayed by withaferin A (2). The delayed onset of action and reduced potency of 1 in cell culture along with previous observations demonstrating the requirement of the 2(3)-double bond in withanolides for bioactivity suggested that 1 might be converted to 2 in cell culture media and this was confirmed by HPLC analysis. The abundant yield of 1 from aeroponically cultivated plants, its good aqueous solubility and spontaneous conversion to 2 under cell culture conditions, suggest that 1 could prove useful as a readily formulated prodrug of withaferin A that merits further evaluation in animal models.

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Crossref · 10.1016/j.bmc.2008.10.091

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Authors
Xu, Y.-M., Marron, M. T., Seddon, E., McLaughlin, S. P., Ray, D. T., Whitesell, L., & Leslie Gunatilaka, A. A.
Affiliations
  • University of Arizona (US)
  • Whitehead Institute for Biomedical Research (US)
Venue
Bioorganic & Medicinal Chemistry
Publisher
Elsevier BV
Published
2009-03
Volume
17
Issue
6
Pages
2210-2214
ISSN
0968-0896 (ISSN-L)
OpenAlex
W2165810298
Cited by
75
References
31
Citations by year
2026: 4 · 2025: 3 · 2024: 8 · 2023: 4 · 2022: 3 · 2021: 6 · 2020: 6 · 2019: 2 · 2018: 3 · 2017: 4 · 2016: 2 · 2015: 3 · 2014: 5 · 2013: 3 · 2012: 6
FWCI
12.69
Type
journal article
Language
en
Open access
closed
Locations
  • Bioorganic & Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Phytochemicals and Medicinal Plants
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant tissue culture and regeneration
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Natural product bioactivities and synthesis
Keywords
withaferin A, prodrugs, Withania somnifera, withanolides, steroidal lactones, anticancer activity, antiangiogenic activity, heat shock response, cytoskeleton disruption, cancer cell proliferation inhibition, natural product discovery
MeSH terms
Ergosterol, Humans, Magnetic Resonance Spectroscopy, Prodrugs, Spectrometry, Mass, Electrospray Ionization, Withania, Cell Line, Tumor, Withanolides

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