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Updated: May 24, 2026

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Mining the cancer genome uncovers therapeutic activity of EphA7 against lymphoma
Elisa Oricchio1, Hans-Guido Wendel
1Cancer Biology & Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, NY, USA.
Abstract:
The functional annotation of the cancer genome can reveal new opportunities for cancer therapies. The wealth of genomic data on various cancers has not yet been mined for clinically and therapeutically useful information. We use cross-comparisons of genomic data with the results of unbiased genetic screens to prioritize genomic changes for further study. In this manner, we have identified a soluble variant of the ephrin receptor A7 (EPHA7 (TR) ) as a tumor suppressor that is lost in lymphoma. We also developed antibody-based delivery to restore this tumor suppressor to the cancer cells in situ. We will discuss our strategy of screening genomic data, specific findings concerning EPHA7 and the potential for future discoveries.
Insights
Researchers identified a tumor suppressor, soluble ephrin receptor A7 (EPHA7), lost in lymphoma. Antibody-based delivery restored this suppressor in cancer cells, offering new therapeutic avenues for cancer treatment.
Area of Science:
- Genomics
- Cancer Biology
- Immunotherapy
Background:
- Genomic data offers potential for novel cancer therapies but remains largely untapped.
- Identifying clinically relevant genomic alterations is crucial for therapeutic development.
Purpose of the Study:
- To mine cancer genomic data for clinically actionable information.
- To identify novel tumor suppressors and develop targeted delivery strategies.
Main Methods:
- Cross-comparison of cancer genomic data with unbiased genetic screening results.
- Prioritization of genomic alterations for functional validation.
- Development of antibody-based delivery systems for in situ restoration of tumor suppressors.
Main Results:
- Identification of a soluble variant of ephrin receptor A7 (EPHA7) as a tumor suppressor.
- Demonstration that EPHA7 is lost in lymphoma.
- Successful in situ restoration of EPHA7 using antibody-based delivery.
Conclusions:
- The strategy of integrating genomic data with genetic screens effectively identifies tumor suppressors.
- Soluble EPHA7 is a novel tumor suppressor implicated in lymphoma.
- Targeted delivery of tumor suppressors represents a promising therapeutic strategy for cancer.
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