Anticancer Therapies – Multimedia

Poly (ADP-ribose) polymerases (PARP) transfer ADP-ribose to itself and other nuclear proteins such as histones, therefore PARP play a crucial role in regulating DNA repair. A luminescent cellular PARP assay and a fluorescent cell viability assay were performed on BMG LABTECH’s FLUOstar Omega to evaluate PARP inhibitors. PARP inhibition has been demonstrated to potentiate the cytotoxicity of anti-cancer drugs and ionising radiation. The ability of the FLUOstar Omega to measure absorbance, lumines

The SRB assay was implemented on a TECAN Genesis workstation by optimizing cell numbers and liquid handling parameters. Anticancer drugs vinblastine, doxorubicin and 5-fluorouracil were used for standardizing the assay with a DU-145 cell line. To screen the antiproliferative activities of a series of stilbene derivatives, altogether 121 different stilbene structures, a plate layout was designed on 96-well format.

3D QSAR studies have been carried out on a series of polyphenols for their antimalarial activity using CATALYST program. Hypothesis with three features namely hydrophobic (1), hydrogen bond donor (1) and hydrogen bond acceptor (1) was found to the best, which mapped well with the most active and least active compound of the test set. This model can be used to develop drugs for malarial chemotherapy.

RNA interference (RNAi) provides an experimental tool for functional genomics analysis. We screened a genome-wide RNAi library to identify new genes involved in lung cancer cell proliferation. 72 % from the 257 genes identified were involved in general gene expression processes, 16 % were of unknown function or unrelated to proliferation, and 12% consisted of uncharacterized genes. These last sets of genes provide potential novel targets for lung cancer treatment.

This study aims to identify protein profiles in breast cancer cells as predictors of chemoresistance by using two-dimensional gel electrophoresis and MALDI-TOF peptide mass fingerprinting. Our findings provide further insights into the complex mechanisms of chemoresistance, as well as representing an attractive starting point for the identification of potential protein biomarkers to predict response to chemotherapy in breast cancer in vivo.

This study aimed to find individual up/down-regulated genes associated with progression and metastatic potential of colorectal cancers using low-density oligonucleotide microarrays spotted with genes known to be involved in process of metastasis development. We suppose that focusing on a particular biological pathway may be more useful than genome-wide screening for our purposes.

To improve screening efficiency, we have developed a cell cycle analysis method that uses an Acumen Explorer fluorescence microplate cytometer to measure the DNA content of propidium iodide stained fixed cells in microplates. We demonstrate that paclitaxel and vinblastine arrested CHO cells in the expected phase of the cell cycle.

The aim of present study was focused on the effect of silencing target gene in triggering of apoptosis in breast cancer MCF-7 cells. Flow cytometry, light-, confocal microscopy and viability/cytotoxicity tests were used for evaluation of the protein level, percentage of apoptotic cells and morphological features of cell death.

20 tuberculosis (12 slow-responders and 8 fast responders) patients were treated with directly observed short course anti-tuberculosis chemotherapy. Chest X-ray was performed. sICAM-1 and suPAR were measured in serum by ELISA, TNFRs using the luminex technology. General discrimination analysis on selected analytes gave, 91.66% and 87,50% correctly classify fast responders and slow responder respectively. The support vector machine analysis gave 100% correct classification.

The aim of this work was to investigate the interaction mechanism of the anthracyclines with the cytosolic reductases. Predictive models have been constructed by means of a molecular docking study, that offer utility in guiding the rational design of inhibitors of reductase activity.