Whole Genome 3D Blood Biopsy Profiling of Canine Cancers: Development and Validation of EpiSwitch Multi-Choice Array-Based Diagnostic Test.

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Whole Genome 3D Blood Biopsy Profiling of Canine Cancers: Development and Validation of EpiSwitch Multi-Choice Array-Based Diagnostic Test.

Authors

Hunter, E.; Salter, M.; Powell, R.; Dring, A.; Naithani, T.; Vugrinec, D.; Shliaiev, K.; Issa, M.; Weston, C.; Hatton, A.; Gebregzabhar, A.; Green, J.; Blum, A.; Guiel, T.; Fritz, S.; Seelig, D.; Modiano, J. F.; Akoulitchev, A.

Abstract

Veterinary oncology has a critical need for an accurate, specific, and sensitive non-invasive (blood) biomarker assay to assess multiple canine oncological indications early to better inform therapeutic interventions. Extended from clinical applications in human oncology, here we report on a novel 3D genomics approach to identify systemic blood biomarkers for canine diffuse large B-cell lymphoma (DLBCL), T-zone lymphoma (TZL), hemangiosarcoma (HSA), histiocytic sarcoma, osteosarcoma, and canine malignant melanoma, in a single assay format that encompasses multiple classes and phenotypes of cancer. In the validation of the independent test cohort the 3D whole-genome profiling in peripheral blood demonstrated high sensitivity and specificity for lymphomas and sarcomas as a class, with accuracy >80%; and high sensitivity and specificity for individual indications, with accuracy >89%. This study demonstrates a 3D genomic approach can be used to develop a non-invasive, blood-based test for multiple choice diagnosis of canine oncological indications. The modular EpiSwitch Specific Canine Blood (EpiSwitch SCB) test promises to help veterinary specialists to diagnose the disease, make more informed treatment decisions, better utilize alternative effective treatments, minimize or avoid unnecessarily toxicity, and efficiently manage costs and resources.

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