alpha methylene gamma butyrolactone/lösemi

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Induction of G2-M phase arrest and apoptosis by alpha-methylene-gamma-butyrolactones in human leukemia cells.

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In this study, we investigated the effect of three synthetic alpha-methylene-gamma-butyrolactones (MBL) on viability of 10 human tumor cell lines and found that these lactones were highly cytotoxic against leukemia cells. Studies performed on HL-60 cells indicate that MBL induce G(2)-M arrest and

Synthesis and cytotoxic evaluation of alpha-methylene-gamma-butyrolactone bearing naphthalene and naphtho[2,1-b]furan derivatives.

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Naphthalene alpha-methylene-gamma-butyrolactones exhibits a unique cytotoxicity profile. They are highly cytostatic for leukaemia cancer cells but are not cytocidal. For almost all the solid tumours tested, they are both cytostatic and cytocidal. Substitution of a bromo atom on either naphthalene or

Design, synthesis, and biological evaluation of hybrid molecules containing alpha-methylene-gamma-butyrolactones and alpha-bromoacryloyl moieties.

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The synthesis and biological activity of hybrids 8-18 prepared combining alpha-methylene-gamma-butyrolactones and alpha-bromoacryloylamides have been described and their structure-activity relationships discussed. All these heterobifunctional compounds demonstrate good antileukemic activity,

GCN5 acetylates and regulates the stability of the oncoprotein E2A-PBX1 in acute lymphoblastic leukemia.

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The t(1;19) translocation in pediatric pre-B-cell acute lymphoblastic leukemia (ALL) fuses the genes, which encode the transcriptional activator E2A and homeobox pre-B-cell leukemia transcription factor 1 (PBX1), resulting in expression of the chimeric transcription factor E2A-PBX1. E2A-PBX1 can

Design, synthesis, and biological evaluation of hybrid molecules containing alpha-methylene-gamma-butyrolactones and polypyrrole minor groove binders.

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We have synthesized and evaluated a series of hybrids of polypyrrole minor groove binders structurally related to the natural antitumor agent distamycin A, and alpha-methylene-gamma-butyrolactones with methyl, phenyl, and 4-substituted phenyl groups at the lactone C(gamma) position, denoted 5-17,

Synthesis and antibacterial and anticancer evaluations of alpha-methylene-gamma-butyrolactones.

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Nine new alpha-methylene-gamma-butyrolactones were synthesized by the Reformatsky condensation of ethyl alpha-bromomethylacrylate with ketones, aldehydes, and an epoxide. A unique spirobutyrolactone class was prepared by reaction of the zinc alkyl derivative and N-methylisatins. The compounds were

Synthesis and antitumor activity of simple vinyl and alpha-methylene-gamma-butyrolactone sulfonate esters and silyl enol ethers.

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A number of simple silyl enol ethers and vinyl trifluoromethanesulfonates, a relatively new class of organic compounds capable of undergoing alkylation by a nucleophilic addition-elimination process, were evaluated in the P388 lymphocytic leukemia system. No activity (ILS = 8-22%) was observed in

Synthesis and antileukemic activities of C1-C10-modified parthenolide analogues.

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Parthenolide (PTL) is a sesquiterpene lactone natural product with anti-proliferative activity to cancer cells. Selective eradication of leukemic stem cells (LSCs) over healthy hematopoietic stem cells (HSCs) by PTL has been demonstrated in previous studies, which suggests PTL and related molecules

Synthesis of mono- and bifunctional alpha-methylene lactone systems as potential tumor inhibitors.

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Synthetic nono- and bifunctional alpha-methylene lactone derivatives including deoxyvernolepin and kihydrodeoxyvernolepin were tested as inhibitors of the growth of CCRF-CEM human lymphoblastic leukemia cells in culture. The range of ID-50 values for compounds 1-7 (ca. 10(-5)-10(-6)M) was roughly

Synthesis, cytotoxicity and inhibition of NO production of ivangustin enantiomer analogues.

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The eight novel ivangustin enantiomer analogues possessing α-methylene-γ-butyrolactone moiety have been synthesized using (4S6R, 4S6S)-4-tert-butyldimethylsilyloxy-6-methylcyclohex-2-en-1-one (1) as starting material. These transformations were mainly carried out by aldol condensation reaction and

Antileukemic activity of aminoparthenolide analogs.

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A series of aminoparthenolide analogs have been synthesized through a diastereoselective conjugate addition of several primary and secondary amines to the alpha-methylene-gamma-butyrolactone function of the very lipophilic sesquiterpene lactone, parthenolide. Seventeen of the above amines

Antitumor activity and mechanism of costunolide and dehydrocostus lactone: Two natural sesquiterpene lactones from the Asteraceae family.

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Costunolide (COS) and dehydrocostus lactone (DEH) are two natural sesquiterpene lactones with potential antitcancer activity against a range of cancer cell types both in vitro and in vivo, particularly for breast cancer and leukemia. There are many researches that have been taken to characterize

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