Anticancer Therapies – Multimedia

An HTS against GalR2 was carried out to find novel PAMs to treat neuropathic pain.

3D Tumorspheroid models for improved predictivity in cancer drug discovery.

Drug Antibody Ratio (DAR) is a critical factor to the effective design of antibody-drug conjugates (ADC). This poster presents a method for DAR determination based on SEC-MALS in conjunction with UV absorption and differential refractive index detection.

Peter Ertl discusses how for the first time, direct cell-to-cell interactions of tumor cells with bead-activated primary T cells were continuously assessed using an effector cell to target cell ratio of 10:1.

The requirement for better in-vitro models that are compatible with high-throughput screening campaigns has led to the development of 3D cell cultures models, especially muliticellular spheroids, which retain many of the morphological and genetic traits of tumours.
Here we describe the formation of such spheroids by two methods: on ultra-low attachment plates and in semi-solid agarose. Both methods are compatible with 96- and 384-well microplate formats.

The objective of the present project is to develop transferrin coupled biodegradable nanoparticles (NPs) with high encapsulation efficiency (Doxorubicin). GALA (Glutamic acid-alanine-leucine alanine) a pH sensitive fusogenic endosomolytic peptide is added to the formulation to enhance the endosomal lysis that will further potentiate the delivery of anticancer drug inside tumor cell as well as prevent loss of drug via endosomes.

Colorectal cancer (CRC) is the second most frequent cause of cancer deaths in Australia. Even after resection up to 50% of patients relapse. In an attempt to prevent recurrences chemotherapy is administered to high risk patients. However, as few as 10-20% patients genuinely benefit because the clinical course for individuals with CRC remains difficult to predict, largely due to prognostically heterogeneous groups within same-stage tumour categories.

DNA mehtylation can lead to chemotherapy resistance in cancer. The aim of this study was to investigate the role of DNA methylation in docetaxel-resistant human breast cancer cells. Whereas the DNA methylation machinery is altered in docetaxel-resistant human breast cancer cells compared to docetaxel-sensitive human breast cancer cells, resistance to docetaxel could not be reversed using the DNA methylation inhibitor decitabine.

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.