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Targeting the metastatic niche: Single-cell lineage tracing in prime time
Elijah R Sommer1, Giulia C Napoli1, Cindy H Chau1
1Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Abstract:
Identification of actionable drug targets remains a rate-limiting step of, and one of the most prominent barriers to successful drug development for metastatic cancers. CRISPR-Cas9, a tool for making targeted genomic edits, has given rise to various novel applications that have greatly accelerated discovery in developmental biology. Recent work has coupled a CRISPR-Cas9-based lineage tracing platform with single-cell transcriptomics in the unexplored context of cancer metastasis. In this perspective, we briefly reflect on the development of these distinct technological advances and the process by which they have become integrated. We also highlight the importance of single-cell lineage tracing in oncology drug development and suggest the profound capacity of a high-resolution, computational approach to reshape cancer drug discovery by enabling identification of novel metastasis-specific drug targets and mechanisms of resistance.
Insights
Identifying new drug targets for metastatic cancers is challenging. Combining CRISPR-Cas9 lineage tracing with single-cell transcriptomics offers a powerful approach to discover novel metastasis-specific drug targets and resistance mechanisms.
Area of Science:
- Oncology
- Genomics
- Biotechnology
Background:
- Drug target identification is a major hurdle in metastatic cancer treatment.
- CRISPR-Cas9 gene editing has accelerated biological discovery.
- Cancer metastasis research has not fully utilized advanced genomic tools.
Purpose of the Study:
- To review the integration of CRISPR-Cas9 lineage tracing and single-cell transcriptomics.
- To highlight the significance of single-cell lineage tracing in oncology drug development.
- To propose a high-resolution computational approach for cancer drug discovery.
Main Methods:
- Leveraging CRISPR-Cas9 for lineage tracing in cancer metastasis.
- Employing single-cell transcriptomics to analyze cellular dynamics.
- Integrating computational approaches for high-resolution analysis.
Main Results:
- Recent work has combined CRISPR-Cas9 lineage tracing with single-cell transcriptomics.
- This integration provides insights into cancer metastasis.
- The approach has the potential to identify novel drug targets.
Conclusions:
- Single-cell lineage tracing is crucial for oncology drug development.
- Advanced computational methods can reshape cancer drug discovery.
- This integrated approach can identify metastasis-specific targets and resistance mechanisms.

