Страница 1 од 154 резултати
Although prolidase [E.C.3.4.13.9] is found in normal cells, substantially increased levels are found in some neoplastic tissues. Prolidase evokes the ability to hydrolyse the imido-bond of various low molecular weight compounds coupled to L-proline. The synthesis of three proline analogues of
A series of proline analogues of anthraquinone-2-carboxylic acid (1-3) were synthesized and evaluated for cytotoxic activity in the cultured breast cancer MCF-7 cells. The concentrations of 1, 2 and 3 needed to inhibit [3H]thymidine incorporation into DNA by 50% (IC50) were found to be 107 +/- 6
Some cases of breast cancer are composed of clones of hormonal-independent growing cells, which do not respond to therapy. In the present study, the effect of Benzene-Poly-Carboxylic Acid Complex (BP-C1) on growth of human breast-cancer cells was tested. BP-C1 is a novel anti-cancer complex of
A set of 2-galactosylthiazolidine-4-carboxylic acid amides was synthesized with different length for the carbon chain amide moiety. The cytotoxicity of the molecules was evaluated against A375 melanoma and MCF7 breast cancer cell lines. For the derivatives tested, the one that contains a C(16) amide
More than 75 % of breast cancers are estrogen receptor alpha (ER) positive (ER+) and resistance to current hormone therapies occurs in one third of ER+ patients. Tumor resistance is still ERdependent, but mutations usually confer constitutive activation to the hormone-receptor, rendering
Pursuing our effort for developing effective inhibitors of the cancer-related hCA IX isoform, here we describe the synthesis of novel benzofuran-based carboxylic acid derivatives, featuring the benzoic (9a-f) or hippuric (11a,b) acid moieties linked to 2-methylbenzofuran or
Autotaxin (ATX, aka. ENPP2) is the main source of the lipid mediator lysophosphatidic acid (LPA) in biological fluids. This study reports on inhibitors of ATX derived by lead optimization of the benzene-sulfonamide in silico hit compound 3. The new analogues provide a comprehensive
An aristolactam-type alkaloid, isolated from Orophea enterocarpa, is enterocarpam-III (10-amino-2,3,4,6- tetramethoxyphenanthrene-1-carboxylic acid lactam). It is cytotoxic to various human and murine cancer cell lines; however, the molecular mechanisms remain unclear. The aims of this study were to
Metastatic cancer is responsible for 90% of deaths in world. Usage of nano-carriers improve the delivery and efficacy of chemotherapeutic agents. Recent studies suggest that decoration of the surface of nano-carriers with various targeting agents may further improve their overall therapeutic
The estrogen receptor binding, and growth suppressant and stimulating effects in MCF-7 human breast cancer cells, of four structural variants of the triarylethylene antiestrogen tamoxifen (1) were studied. In these analogs, the dialkylaminoethoxy side chain of 1 was replaced by carboxylic acid or
An in vitro model of acquired melphalan resistance was developed by serial incubation of an MCF-7 human breast cancer cell line in increasing concentrations of melphalan. The resulting derivative cell line, Me1R MCF-7, was 30-fold resistant to melphalan. Uptake studies demonstrated decreased initial
It is well-established that aminothiols, to which cysteine (Cys) belongs, are highly reactive towards aldehydes in an aqueous environment, forming substituted thiazolidine carboxylic acids. This report provides evidence that formation of the product containing a thiazolidine ring through
A series of indole-2-carboxylic acid benzylidene-hydrazides has been identified as a new class of potent apoptosis inducers through a novel cell-based caspase HTS assay. The screening hit, 5-chloro-3-methyl-indole-2-carboxylic acid (4-nitrobenzylidene)-hydrazide (3a), was found to arrest T47D cells
The ability of Lonidamine (LND), an energolytic derivative of indazole-carboxylic acid, to modulate the antiproliferative effect of the single-chain ribosome-inactivating protein Saporin 6 (SO 6) was investigated in the human MAST breast cancer cell line, recently established from an ascitic
A Prussian Blue (PB) zinc oxide carbon nanotube sensing composite was developed for the rapid assaying of H2O2 generated from BT20 and 4T1 breast cancer cells, important for elucidating mechanisms governing apoptosis of these cell lines. The combination of