Format

Send to

Choose Destination
Cancer Res. 2018 Jan 15;78(2):348-358. doi: 10.1158/0008-5472.CAN-17-1138. Epub 2017 Nov 27.

Utility of Single-Cell Genomics in Diagnostic Evaluation of Prostate Cancer.

Author information

1
Cold Spring Harbor Laboratory, Cold Spring Harbor, New York.
2
Technological School of Electronic Systems, Technical University of Sofia, Sofia, Bulgaria.
3
Department of Urology, New York University Langone Medical Center, New York, New York.
4
Department of Urology, Weill Medical College of Cornell University, New York, New York.
5
Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, New York.
6
Cold Spring Harbor Laboratory, Cold Spring Harbor, New York. krasnitz@cshl.edu.

Abstract

A distinction between indolent and aggressive disease is a major challenge in diagnostics of prostate cancer. As genetic heterogeneity and complexity may influence clinical outcome, we have initiated studies on single tumor cell genomics. In this study, we demonstrate that sparse DNA sequencing of single-cell nuclei from prostate core biopsies is a rich source of quantitative parameters for evaluating neoplastic growth and aggressiveness. These include the presence of clonal populations, the phylogenetic structure of those populations, the degree of the complexity of copy-number changes in those populations, and measures of the proportion of cells with clonal copy-number signatures. The parameters all showed good correlation to the measure of prostatic malignancy, the Gleason score, derived from individual prostate biopsy tissue cores. Remarkably, a more accurate histopathologic measure of malignancy, the surgical Gleason score, agrees better with these genomic parameters of diagnostic biopsy than it does with the diagnostic Gleason score and related measures of diagnostic histopathology. This is highly relevant because primary treatment decisions are dependent upon the biopsy and not the surgical specimen. Thus, single-cell analysis has the potential to augment traditional core histopathology, improving both the objectivity and accuracy of risk assessment and inform treatment decisions.Significance: Genomic analysis of multiple individual cells harvested from prostate biopsies provides an indepth view of cell populations comprising a prostate neoplasm, yielding novel genomic measures with the potential to improve the accuracy of diagnosis and prognosis in prostate cancer. Cancer Res; 78(2); 348-58. ©2017 AACR.

PMID:
29180472
PMCID:
PMC5771881
DOI:
10.1158/0008-5472.CAN-17-1138
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for HighWire Icon for PubMed Central
Loading ...
Support Center