Journal
NATURE REVIEWS GENETICS
Volume 21, Issue 11, Pages 671-682Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41576-020-0247-7
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Funding
- NIH Early Independence award [1DP5OD021385]
- Breast Cancer Alliance Young Investigator award
- Damon Runyon-Rachleff Innovation award
- Gates Foundation Innovative Technology Solutions grant
- CSHL-Northwell Health Translational Cancer Research grant
- NSF Graduate Research Fellowship
- Gabilan Stanford Graduate Fellowship
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Cancer 'genetic dependencies' - genes whose products are essential for cancer cell fitness - are promising targets for therapeutic development. However, recent evidence has cast doubt on the validity of several putative dependencies that are currently being targeted in cancer clinical trials, underscoring the challenges inherent in correctly identifying cancer-essential genes. Here we review several common techniques and platforms for discovering and characterizing cancer dependencies. We discuss the strengths and drawbacks of different gene-perturbation approaches, and we highlight the use of poorly validated genetic and pharmacological agents as a common cause of target misidentification. A careful consideration of the limitations of current technologies and cancer models will improve our ability to correctly uncover cancer genetic dependencies and will facilitate the development of improved therapeutic agents. The development of successful anticancer therapies relies on identifying drug targets that are genuine cancer-specific vulnerabilities. In this article, Lin and Sheltzer discuss how the different genetic and pharmacological methods for identifying and characterizing cancer dependencies each have important strengths and limitations. Responsible and orthogonal use of these methods holds promise for maximizing the ability of preclinical research to translate into clinical benefit.
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