Thursday, December 2, 2021

Spheroids to organoids: Solid cancer models for anticancer drug discovery

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Bull Cancer. 2021 Nov 27:S0007-4551(21)00443-4. doi: 10.1016/j.bulcan.2021.09.019. Online ahead of print.

ABSTRACT

Cell culture is an important and necessary technology in oncology research. Currently, two-dimensional (2D) cell culture models are the most widely used, but they cannot reproduce the complexity and pathophysiology of tumors in vivo. This may be a major cause of the high rate of attrition of anticancer drugs entering clinical trials, the rate of new anticancer drugs entering the market being less than 5 %. One way to improve the success of new cancer drugs in the clinic is based on the use of three-dimensional (3D) cell culture models, more able to represent the complex environment and architecture of tumors. These 3D culture systems are also a powerful research tool for modeling the evolution of cancer from early stages to metastasis. Spheroids and organoids, the most adaptable models among 3D culture systems, are beginni ng to be used in pharmaceutical research and personalized medicine. In this article, we review the use of spheroids and organoids by highlighting their differences, discussing their impact on drug development, and looking at future challenges.

PMID:34848046 | DOI:10.1016/j.bulcan.2021.09.019

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