Rapid analysis of 3D tumour spheroids in soft agar and on ultra-low attachment plates using a laser scanning imaging system
Poster Feb 19, 2014
Anne F Hammerstein, Diana Caracino, and Paul Wylie
Research to identify new anticancer drugs is currently facing significant challenges, as only 5% of compounds that show efficacy in pre-clinical development go on to become licensed drugs. Traditionally 2D cell culture models have been employed to evaluate drug candidates in the early phases of the drug discovery process, however, there is increasing evidence that cells grown in 2D monolayers do not accurately reflect the biological complexity of tumours. The requirement for better in vitro tumour models that are compatible with high throughput screening campaigns has led to the development of 3D cell cultures models, especially muliticellular tumour 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. We then used the acumen cellista to rapidly image entire microplates (<5 minutes/plate), reporting a range of parameters such as spheroid number, area and volume. The acumen cellista is ideally suited to the high content analysis of spheroids, as the whole-well scanning capability of the instrument will include data from all the spheroids in a well, while the large depth of field of the scan lens allows the determination of individual spheroid volume without the need to acquire a Z stack of images.
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Researchers developed a convenient method to confirm pyroptosis. Inflammasome activation triggers rapid pyroptosis. Preventing pyroptosis may shift form of cell deathREAD MORE
A New Tool for the Automated Sample Preparation of Whole Blood Samples by LC-MS using a Commercial AutosamplerPoster
Automated sample preparation reduces the costs per sample and minimizes sample handling errors. Usually expensive and highly specialized pipetting robots are used. However, most of these systems are not designed with a direct interface for LC-MS applications. In addition common pipetting systems are not optimized for smaller scale sample series. Here we present a new tool for liquid handling of whole blood samples and direct sample injection.
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