betulonic acid/سرطان

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Boc-lysinated-betulonic acid: a potent, anti-prostate cancer agent.

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Betulonic acid, derived from betulinol, a pentacyclic styrene, has shown a highly specific anti-prostate cancer activity in in vitro cell cultures. However, due to the lack of solubility of betulonic acid in aqueous medium, its potent anti-cancer activity in vivo has not been determined to the

X-ray diffraction and infrared spectroscopy of N,N-dimethylformamide and dimethyl sulfoxide solvatomorphs of betulonic acid.

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X-ray diffraction and infrared spectroscopy measurements for the N,N-dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) solvatomorphs of betulonic acid (BA) were investigated. BA [3-oxolup-20(29)-en-28-oic acid, C(30)H(46)O(3)] exhibits a wide spectrum of biological activities and is considered

Employing rubusoside to improve the solubility and permeability of antitumor compound betulonic acid.

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OBJECTIVE To examine if rubusoside (RUB) can overcome insolubility of betulonic acid (BEA), it can be accurately evaluated for its intrinsic activity against cancer in cell culture and in tumor animal models. METHODS By processing RUB and BEA together using a solvent evaporation method, a joint

Induction of intrinsic apoptosis in leukaemia stem cells and in vivo zebrafish model by betulonic acid isolated from Walsura pinnata Hassk (Meliaceae).

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BACKGROUND Leukaemia stem cells (LSC) have been associated with disease relapse and chemotherapy resistance. Betulonic acid (BA), a pentacyclic lupane-type triterpenoid, was reported to exhibit cytotoxicity toward various cancer cells and to be capable of inducing intrinsic apoptosis in solid

Microbial transformations of two lupane-type triterpenes and anti-tumor-promoting effects of the transformation products.

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Microbial transformation of betulin (1), a lupane-type triterpene obtained from the bark extract of white birch (Betula platyphylla Sukatshev var. japonica), and its chemical oxidation product, betulonic acid (2), by the fungus Chaetomium longirostre yielded

Triterpenoids Extracted from Rhus chinensis Mill Act Against Colorectal Cancer by Inhibiting Enzymes in Glycolysis and Glutaminolysis: Network Analysis and Experimental Validation.

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Background:Rhus chinensis Mill is a traditional Chinese medicine (TCM) mostly used to treat several cancer types. Although previous studies have found that certain ingredients of R. chinensis such as flavonoids can inhibit tumor cell proliferation [e.g. colorectal cancer (CRC)],

Antitumor and antimetastatic effects of betulonic acid amides in mice with transplantable lewis carcinoma.

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We studied the effects of four synthetic amides of betulonic acid containing amino acid fragments (d,l-alpha-alanine, beta-alanine, and their methyl esters) on the rate of growth and metastatic dissemination of transplantable Lewis lung carcinoma in C57Bl/6 mice. The test compounds were administered

[Synthesis and antitumor activity of cyclopropane derivatives of betulinic and betulonic acids].

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New cyclopropane derivatives of betulin were synthesized by attachment of dichlorocarbenes or dibromocarbenes to the double bond of betulin diacetate, followed by the deprotection of hydroxyl groups. The betulin cyclopropane derivative was obtained from 20,29-dihydro-20,29-dichloromethylenebetulin

Paclitaxel and betulonic acid synergistically enhance antitumor efficacy by forming co-assembled nanoparticles

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The side effects and low bioavailability of paclitaxel (PTX) limit its clinical application. The formation of self-assembled nanomedicines without structural modification is attractive for biomedical applications. Here, we constructed a supramolecular co-assembled nanoparticles (NPs), which is

Biotransformation of betulinic and betulonic acids by fungi.

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Betulinic acid (1), a triterpenoid found in many plant species, has attracted attention due to its important pharmacological properties, such as anti-cancer and anti-HIV activities. The closely related, betulonic acid (2) also has similar properties. In order to obtain derivatives potentially useful

Synthesis and biological evaluation of betulonic acid derivatives as antitumor agents.

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Structural modification was performed at the C-28 position of betulonic acid (BetA). Twenty-five BetA derivatives were synthesized, and evaluated for their antitumor activities against MGC-803, PC3, Bcap-37, A375, and MCF-7 human cancer cell lines by MTT assay. Among the derivatives, most of the

Antiproliferative activity and apoptosis-inducing mechanism of constituents from Toona sinensis on human cancer cells.

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BACKGROUND Natural products, including plants, microorganisms and marines, have been considered as valuable sources for anticancer drug discovery. Many Chinese herbs have been discovered to be potential sources of antitumor drugs. METHODS In the present study, we investigated the antitumor efficacy

Synthesis, Anticancer and Antibacterial Activity of Betulinic and Betulonic Acid C-28-Triphenylphosphonium Conjugates with Variable Alkyl Linker Length.

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Conjugation of triterpenoids such as betulinic acid 1 with Triphenylphosphonium (TPP) group is a powerful approach to generating medicinal compounds. Their development proposes structure optimization in respect of availability and activity towards target cells and organelles. Selection

Synthesis of triterpenoid triazine derivatives from allobetulone and betulonic acid with biological activities.

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The synthetic transformation and modification of natural products with the aim to improve the biological properties is an area of current interest. The triterpenoids betulin and betulinic acid are very abundant in nature and now are commercially available. In our study, starting from betulin and

[Synthesis and Anticancer Activity of Betulonic Acid Imidazolides].

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Synthesis of lupane C28-imidazolides, contained 3-oxo-, 3-oximino- and 2-cyano-2,3-seco-4(23)-en-frag ments in cycle A was carried out. The most antitumor activity at. in vitro testing showed 3-oximino-lup- 20(29)-en-28-yl-1H-imidazole-1-carboxylate; which inhibited the growth or induced apoptosis

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