Science News

High-Throughput Screening in Colorectal Cancer Tissue-Originated Spheroids.

A new interesting article has been published in Cancer Sci. 2018 Oct 21. doi: 10.1111/cas.13843. [Epub ahead of print] and titled:

High-Throughput Screening in Colorectal Cancer Tissue-Originated Spheroids.

Authors of this article are:

Kondo J, Ekawa T, Endo H, Yamazaki K, Tanaka N, Kukita Y, Okuyama H, Okami J, Imamura F, Ohue M0, Kato K, Nomura T, Kohara A, Mori S, Dan S, Inoue M.

A summary of the article is shown below:

Patient-derived cancer organoid culture is an important live material that reflects clinical heterogeneity. However, the limited amount of organoids available for each case as well as the considerable amount of time and cost to expand in vitro makes it impractical to perform high-throughput drug screening using organoid cultures from multiple patients. Here, we report an advanced system for the high-throughput screening of 2427 drugs using the cancer tissue-originated spheroid (CTOS) method. In this system, we apply the CTOS method in an ex vivo platform from xenograft tumors, using machines to handle CTOSs and reagents, and testing a CTOS reference panel of multiple CTOS lines for the hit drugs. CTOS passages in xenograft tumors resulted in minimal changes of morphological and genomic status, and xenograft tumor generation efficiently expanded the number of CTOSs to evaluate multiple drugs. Our panel of colorectal cancer CTOS lines exhibited diverse sensitivities to the hit compounds, demonstrating the usefulness of this system for investigating highly heterogeneous disease. This article is protected by copyright. All rights reserved.

Check out the article’s website on Pubmed for more information:



This article is a good source of information and a good way to become familiar with topics such as:

3D culture;Cancer;Heterogeneity;High throughput Screening;Organoid

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