Author
E. Pisha
Bio: E. Pisha is an academic researcher from University of Illinois at Chicago. The author has contributed to research in topics: Betulinic acid. The author has an hindex of 1, co-authored 1 publications receiving 783 citations.
Topics: Betulinic acid
Papers
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TL;DR: As a result of bioassay–guided fractionation, betulinic acid, a pentacyclic triterpene, was identified as a melanoma–specific cytotoxic agent and antitumour activity was mediated by the induction of apoptosis.
Abstract: As a result of bioassay-guided fractionation, betulinic acid, a pentacyclic triterpene, was identified as a melanoma-specific cytotoxic agent. In follow-up studies conducted with athymic mice carrying human melanomas, tumour growth was completely inhibited without toxicity. As judged by a variety of cellular responses, antitumour activity was mediated by the induction of apoptosis. Betulinic acid is inexpensive and available in abundant supply from common natural sources, notably the bark of white birch trees. The compound is currently undergoing preclinical development for the treatment or prevention of malignant melanoma.
829 citations
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TL;DR: Several compounds from tropical rainforest plant species with potential anticancer activity have been identified and several compounds, mainly from edible plant species or plants used as dietary supplements, that may act as chemopreventive agents are isolated.
1,591 citations
TL;DR: Natural product and natural product-derived compounds that are being evaluated in clinical trials or are in registration (as at 31st December 2007) have been reviewed, as well as natural products for which clinical trials have been halted or discontinued since 2005.
976 citations
TL;DR: Synthetic oleanane triterpenoids and rexinoids are two new classes of multifunctional drugs that have unique molecular and cellular mechanisms of action and might prove to be synergistic with standard anti-cancer treatments.
Abstract: Synthetic oleanane triterpenoids and rexinoids are two new classes of multifunctional drugs. They are neither conventional cytotoxic agents, nor are they monofunctional drugs that uniquely target single steps in signal transduction pathways. Synthetic oleanane triterpenoids have profound effects on inflammation and the redox state of cells and tissues, as well as being potent anti-proliferative and pro-apoptotic agents. Rexinoids are ligands for the nuclear receptor transcription factors known as retinoid X receptors. Both classes of agents can prevent and treat cancer in experimental animals. These drugs have unique molecular and cellular mechanisms of action and might prove to be synergistic with standard anti-cancer treatments.
617 citations
TL;DR: The pharmacological activity of naturally occurring triterpenoids excluding the degraded triter penoids and cucurbitacins is reviewed, which includes anticancer, anti-inflammatory, antiulcerogenic, antimicrobial and antiviral activity.
602 citations
TL;DR: A new mechanism of action has been confirmed for some of the most promising anti-HIV derivatives, which makes them potentially useful additives to the current anti- HIV therapy.
585 citations