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A new pyrrole based small molecule from Tinospora cordifolia induces apoptosis in MDA-MB-231 breast cancer cells via ROS mediated mitochondrial damage and restoration of p53 activity.

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Approximately 15% of globally diagnosed breast cancers are designated as triple negative breast cancer (TNBC). In this study, we investigated the effect of the natural compound, Bis(2- ethyl hexyl) 1H-pyrrole-3,4-dicarboxylate (TCCP), purified from Tinospora cordifolia on MDA-MB-231, a TNBC cell

Autophagic cell death, polyploidy and senescence induced in breast tumor cells by the substituted pyrrole JG-03-14, a novel microtubule poison.

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JG-03-14, a substituted pyrrole that inhibits microtubule polymerization, was screened against MCF-7 (p53 wild type), MDA-MB231 (p53 mutant), MCF-7/caspase 3 and MCF-7/ADR (multidrug resistant) breast tumor cell lines. Cell viability and growth inhibition were assessed by the crystal violet dye

Targeting tyrosine kinase: Development of acridone - pyrrole - oxindole hybrids against human breast cancer.

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Based on the molecular modelling studies, a rational modification of the lead molecule was made to develop highly potent compounds showing anti-cancer activity against human breast cancer cell lines MCF 7, MDA-MB-468 and T-47D. The most potent compounds have Log P and total polar surface area

Altered S-nitrosothiol homeostasis provides a survival advantage to breast cancer cells in HER2 tumors and reduces their sensitivity to trastuzumab.

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The monoclonal antibody trastuzumab against HER2/neu, which is overexpressed in 15-20% of breast cancers, has clinical efficacy but many patients do not respond to initial treatment or develop resistance during treatment. Nitric oxide (NO) regulates cell signaling by targeting specific cysteine

Design, synthesis, and SAR of new pyrrole-oxindole progesterone receptor modulators leading to 5-(7-fluoro-3,3-dimethyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-1-methyl-1H-pyrrole-2-carbonitrile (WAY-255348).

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We have continued to explore the 3,3-dialkyl-5-aryloxindole series of progesterone receptor (PR) modulators looking for new agents to be used in female healthcare: contraception, fibroids, endometriosis, and certain breast cancers. Previously we reported that subtle structural changes with this and

Carbonic anhydrase inhibitors: Synthesis, molecular docking, cytotoxic and inhibition of the human carbonic anhydrase isoforms I, II, IX, XII with novel benzenesulfonamides incorporating pyrrole, pyrrolopyrimidine and fused pyrrolopyrimidine moieties.

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A series of novel pyrroles, pyrrolopyrimidines, pyrazolopyrrolopyrimidine, triazolopyrrolopyrimidines, tetrazolopyrrolopyrimidine, triazinopyrrolopyrimidines and pyrrolopyrimidotriazepines bearing the biologically active benzenesulfonamide moiety were synthesized by using

Metabolic Response to XD14 Treatment in Human Breast Cancer Cell Line MCF-7.

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XD14 is a 4-acyl pyrrole derivative, which was discovered by a high-throughput virtual screening experiment. XD14 inhibits bromodomain and extra-terminal domain (BET) proteins (BRD2, BRD3, BRD4 and BRDT) and consequently suppresses cell proliferation. In this study, metabolic profiling reveals the

A pyrrole-based natural small molecule mitigates HSP90 expression in MDA-MB-231 cells and inhibits tumor angiogenesis in mice by inactivating HSF-1.

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Heat shock proteins (HSPs), molecular chaperones, are crucial for the cancer cells to facilitate proper functioning of various oncoproteins involved in cell survival, proliferation, migration, and tumor angiogenesis. Tumor cells are said to be "addicted" to HSPs. HSPs are overexpressed in many

Synthesis and Cytotoxic Evaluation of Pyrrole Hetarylazoles Containing Benzimidazole/Pyrazolone/1,3,4-Oxadiazole Motifs.

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Azomethine linked pyrrole bishetarylazoles containing benzimidazole/pyrazolone/1,3,4-oxadiazole were synthesized in satisfactory yields. Their structures were confirmed by IR, 1H-NMR, 13C-NMR and elemental analysis. Evaluation for the cytotoxic activities In vitro against a panel of breast cancer

Targeted suppression of EVI1 oncogene expression by sequence-specific pyrrole-imidazole polyamide.

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Human ectopic viral integration site 1 (EVI1) is an oncogenic transcription factor known to play a critical role in many aggressive forms of cancer. Its selective modulation is thought to alter the cancer-specific gene regulatory networks. Pyrrole-imidazole polyamides (PIPs) are a class of small DNA

Lipophilic 2,5-disubstituted pyrroles from the marine sponge Mycale sp. inhibit mitochondrial respiration and HIF-1 activation.

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The lipid extract of the marine sponge Mycale sp. inhibited the activation of hypoxia-inducible factor-1 (HIF-1) in a human breast tumor T47D cell-based reporter assay. Bioassay-guided isolation and structure elucidation yielded 18 new lipophilic 2,5-disubstituted pyrroles and eight structurally

Activity of bis-carbamoyloxymethyl derivatives of pyrroles and pyrrolizines against human tumor xenografts in nude mice.

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The activities of the pyrrolizines, Compounds I and II, and the pyrroles, Compounds IV and V, are reported in nude mouse-grown HT-29 human adenocarcinoma of the colon, DO 1 human oat carcinoma of the lung, and CL 1 human duct cell carcinoma of the breast (coded as CX-1, LX-1, and MX-1, respectively,

Synthesis and Evaluation of Cytotoxic Activity of Some Pyrroles and Fused Pyrroles.

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OBJECTIVE Pyrrole derivatives represent a very interesting class as biologically active compounds. The objective of our study was to investigate the cytotoxic and apoptotic effects and antioxidant activity of the newly synthesized pyrrole derivatives. METHODS A series of novel pyrroles and fused

Synthesis and molecular docking of some novel anticancer sulfonamides carrying a biologically active pyrrole and pyrrolopyrimidine moieties.

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Abstract: A novel series of pyrroles and pyrrolopyrimdines carrying a biologically active sulfonamide moiety have been synthesized. The structures were confirmed by elemental analyses and spectral data. All the target compounds were subjected to in vitro cytotoxic screening on breast cancer cell

Discovery of the Antitumor Effects of a Porphyrazine Diol (Pz 285) in MDA-MB-231 Breast Tumor Xenograft Models in Mice.

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A series of porphyrazines (Pzs) with chiral bis-acetal moieties in the β-pyrrole positions ((2R,3R)-2,3-dimethyl-2,3-dimethoxy-1,4-diox-2-ene) have been synthesized and screened as antitumor agents in MDA-MB-231 breast tumor cells in vitro. The lead Pz 285 was further tested in a mouse tumor

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