Current liquid biopsy assays lack sufficient sensitivity to detect copy number loss, which limits the interrogation of critical tumor suppressor gene deletions during cancer progression and treatment. Here we describe a liquid biopsy assay with improved sensitivity for detection of copy number loss in blood samples with low levels of circulating tumor DNA, and demonstrate its utility by profiling PTEN, RB1, and TP53 genetic loss in metastatic prostate cancer patients.
Keywords: NGS; circulating tumor DNA; copy number loss; liquid biopsy; prostate cancer.
Copyright © 2021 Dong, Zheng, Zhang, Dai, Wang, Wang, Zhang, Long, Wen, Xie, Zhang, Huang, Dong, Liu, Du, King, Tan, Jia, Lu, Kohli, Wang and Yu.