| Ionic derivatives of betulinic acid as novel HIV-1 protease inhibitors. | |
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MedLine Citation:
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PMID: 21985312 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Betulinic acid is a natural product possessing abundant and favourable biological activity, including anti-cancer, anti-malarial, anti-inflammatory and anti-HIV properties, while causing minimal toxicity to unaffected cells. The full biological potency of betulinic acid cannot be fully unlocked, however, for a number of reasons, a primary one being its limited solubility in aqueous and biologically pertinent organic media. Aiming to improve the water solubility of betulinic acid without disrupting its structurally related bioactivity, we have prepared different ionic derivatives of betulinic acid. Inhibition bioassays on HIV-1 protease-catalysed peptide hydrolysis indicate significantly improved performance resulting from converting the betulinic acid to organic salt form. Indeed, for one particular cholinium-based derivative, its water solubility is improved more than 100 times and the half maximal inhibitory concentration (IC(50)) value (22 μg mL(-1)) was one-third that of wide-type betulinic acid (60 μg mL(-1)). These encouraging results advise that additional studies of ionic betulinic acid derivatives as a therapeutic solution against HIV-1 infection are warranted. |
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Authors:
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Hua Zhao; Shaletha S Holmes; Gary A Baker; Suresh Challa; Himangshu S Bose; Zhiyan Song |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-10 |
Journal Detail:
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Title: Journal of enzyme inhibition and medicinal chemistry Volume: - ISSN: 1475-6374 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101150203 Medline TA: J Enzyme Inhib Med Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Natural Sciences, Savannah State University , Savannah, GA , USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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