butanoic acid/neoplasms

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Preclinical evaluation of 2-amino-2-[11C]methyl-butanoic acid as a potential tumor-imaging agent in a mouse model.

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OBJECTIVE C-labeled 2-amino-2-methyl-butanoic acid (Iva) was previously reported to provide high tumor uptake; however, the pharmacokinetic properties of C-labeled Iva have not been characterized. In the present study, we evaluated the potential of [C]Iva as a PET probe for tumor

[2-amino-2-methyl-butanoic acid (2-AMB)--a potential tumor-seeking agent].

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Pyrrole alkaloids with potential cancer chemopreventive activity isolated from a goji berry-contaminated commercial sample of African mango.

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Bioassay-guided fractionation of a commercial sample of African mango (Irvingia gabonensis) that was later shown to be contaminated with goji berry (Lycium sp.) led to the isolation of a new pyrrole alkaloid, methyl 2-[2-formyl-5-(hydroxymethyl)-1H-pyrrol-1-yl]propanoate, 1, along with seven known

Analogues of alpha-aminoisobutyric acid with various alkyl groups as potential tumour imaging agents; effects of chain length on tumour and normal tissue specificity.

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Eight 14C-labelled analogues of alpha-aminoisobutyric acid (AIB) were synthesized using the modified Bucherer technique to investigate their tissue distribution in Ehrlich tumour bearing mice. A structure-activity relationship within a series of AIB analogues was found; increasing the chain length

Stereoselective metabolism of nicotine and tobacco-specific N-nitrosamines to 4-hydroxy-4-(3-pyridyl)butanoic acid in rats.

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The carcinogenic tobacco-specific nitrosamines 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and N'-nitrosonornicotine (NNN) are believed to play a role in cancers associated with the use of tobacco products. Urinary metabolites of NNK and NNN could be used as biomarkers for an individual's

Liquid chromatography-electrospray ionization-tandem mass spectrometry quantitation of urinary [pyridine-D4]4-hydroxy-4-(3-pyridyl)butanoic acid, a biomarker of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone metabolic activation in smokers.

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4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK, 1) is a potent tobacco-specific lung carcinogen believed to play a key role in the development of lung cancer in smokers. Metabolic activation of NNK to DNA damaging reactive intermediates proceeds via α-hydroxylation pathways. The end products of

Synthesis, spectroscopic, X-ray crystal structure, biological and DNA interaction studies of organotin(IV) complexes of 2-(4-ethoxybenzylidene) butanoic acid.

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Six organotin(IV) carboxylates of the type R2SnL2 [R=CH3 (1), n-C4H9 (2), n-C8H17 (3)] and R3SnL [R=CH3 (4), n-C4H9 (5), C6H5 (6), where L=2-(4-ethoxybenzylidene) butanoic acid, have been synthesized and characterized by elemental analysis, FT-IR and NMR ((1)H, (13)C). The complex (1) was also

In vitro antineoplastic activity of C7-substituted mitomycin C analogues MC-77 and MC-62 against human breast-cancer cell lines.

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Mitomycin C (MIT-C) is one of the most potent antineoplastic agents used for the treatment of breast cancer and a wide variety of malignant tumors. However, administration of MIT-C is frequently accompanied by the delayed onset of severe myelosuppression We have synthesized a new series of MIT-C

Multifunctional platinum(IV) complexes as immunostimulatory agents to promote cancer immunochemotherapy by inhibiting tryptophan-2,3-dioxygenase.

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Increasing evidences suggested that cisplatin can be involved in a tumor-specific immune response as an immunomodulator to improve antitumor immunity, but the designation and development are limited. Here, we report a series of novel Pt(IV) complexes derived from the conjugation of platinum(II)

Co-delivery of 2-Deoxyglucose and a Glutamine Metabolism Inhibitor V9302 via a Prodrug Micellar Formulation for Synergistic Targeting of Metabolism in Cancer.

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The unique metabolic demand of cancer cells suggests a new therapeutic strategy targeting the metabolism in cancers. V9302 is a recently reported inhibitor of ASCT2 amino acid transporter which shows promising antitumor activity by blocking glutamine uptake. However, its poor solubility in aqueous

The methionine precursor DL-2-hydroxy-(4-methylthio)butanoic acid protects intestinal epithelial barrier function.

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DL-2-hydroxy-(4-methylthio)butanoic acid (HMTBA) is a source of dietary methionine (Met) that is widely used in poultry nutrition. We have previously shown that HMTBA is preferentially diverted to the transsulfuration pathway, which gives antioxidant metabolites such as taurine and glutathione.

Nitro analogues of chlorambucil as potential hypoxia-selective anti-tumour drugs.

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The chlorambucil isomer 4-[3-[N,N-bis(2-chloroethyl)amino]phenyl] butanoic acid (m-chlorambucil) has been synthesized for the first time, and the two isometric nitro derivatives of both m-chlorambucil and chlorambucil itself have been prepared as potential hypoxia-selective cytotoxins. Reduction

Targeting CD19 in B-cell lymphoma: emerging role of SAR3419.

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Non-Hodgkin lymphoma symbolizes a heterogeneous group of diseases resulting from malignant transformation of lymphocytes with differing patterns of behavior and responses to treatment. The potential curability of non-Hodgkin lymphoma differs among the various histologic subtypes and is associated in

Extensive metabolic activation of the tobacco-specific carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone in smokers.

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4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) is a potent lung carcinogen present in both unburned tobacco and cigarette smoke. The sum of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL) and its glucuronides, referred to as total NNAL, is an established urinary biomarker of human NNK

Toxicology and Carcinogenesis Studies of g-Butyrolactone (CAS No. 96-48-0) in F344/N Rats and B6C3F1 Mice (Gavage Studies).

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g-Butyrolactone is an intermediate in the synthesis of polymers used as film formers in hair sprays, blood plasma extenders, and clarifying agents in beer and wine. Toxicology and carcinogenesis studies were conducted by administering g-butyrolactone (greater than 97% pure) in corn oil by gavage to

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