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Oberg JA, Glade Bender JL, Sulis ML, Pendrick D, Sireci AN, Hsiao SJ, Turk AT, Dela Cruz FS, Hibshoosh H, Remotti H, Zylber RJ, Pang J, Diolaiti D, Koval C, Andrews SJ, Garvin JH, Yamashiro DJ, Chung WK, Emerson SG, Nagy PL, Mansukhani MM, Kung AL. Implementation of next generation sequencing into pediatric hematology-oncology practice: moving beyond actionable alterations. Genome Med 2016; 8:133. [PMID: 28007021 PMCID: PMC5180407 DOI: 10.1186/s13073-016-0389-6] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 12/02/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Molecular characterization has the potential to advance the management of pediatric cancer and high-risk hematologic disease. The clinical integration of genome sequencing into standard clinical practice has been limited and the potential utility of genome sequencing to identify clinically impactful information beyond targetable alterations has been underestimated. METHODS The Precision in Pediatric Sequencing (PIPseq) Program at Columbia University Medical Center instituted prospective clinical next generation sequencing (NGS) for pediatric cancer and hematologic disorders at risk for treatment failure. We performed cancer whole exome sequencing (WES) of patient-matched tumor-normal samples and RNA sequencing (RNA-seq) of tumor to identify sequence variants, fusion transcripts, relative gene expression, and copy number variation (CNV). A directed cancer gene panel assay was used when sample adequacy was a concern. Constitutional WES of patients and parents was performed when a constitutionally encoded disease was suspected. Results were initially reviewed by a molecular pathologist and subsequently by a multi-disciplinary molecular tumor board. Clinical reports were issued to the ordering physician and posted to the patient's electronic medical record. RESULTS NGS was performed on tumor and/or normal tissue from 101 high-risk pediatric patients. Potentially actionable alterations were identified in 38% of patients, of which only 16% subsequently received matched therapy. In an additional 38% of patients, the genomic data provided clinically relevant information of diagnostic, prognostic, or pharmacogenomic significance. RNA-seq was clinically impactful in 37/65 patients (57%) providing diagnostic and/or prognostic information for 17 patients (26%) and identified therapeutic targets in 15 patients (23%). Known or likely pathogenic germline alterations were discovered in 18/90 patients (20%) with 14% having germline alternations in cancer predisposition genes. American College of Medical Genetics (ACMG) secondary findings were identified in six patients. CONCLUSIONS Our results demonstrate the feasibility of incorporating clinical NGS into pediatric hematology-oncology practice. Beyond the identification of actionable alterations, the ability to avoid ineffective/inappropriate therapies, make a definitive diagnosis, and identify pharmacogenomic modifiers is clinically impactful. Taking a more inclusive view of potential clinical utility, 66% of cases tested through our program had clinically impactful findings and samples interrogated with both WES and RNA-seq resulted in data that impacted clinical decisions in 75% of cases.
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Affiliation(s)
- Jennifer A. Oberg
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
| | - Julia L. Glade Bender
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Maria Luisa Sulis
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Danielle Pendrick
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
| | - Anthony N. Sireci
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - Susan J. Hsiao
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - Andrew T. Turk
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - Filemon S. Dela Cruz
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
- Present address: Memorial Sloan Kettering Cancer Center, New York, NY 10065 USA
| | - Hanina Hibshoosh
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Helen Remotti
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - Rebecca J. Zylber
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
| | - Jiuhong Pang
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - Daniel Diolaiti
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Present address: Memorial Sloan Kettering Cancer Center, New York, NY 10065 USA
| | - Carrie Koval
- Department of Clinical Genetics, Columbia University Medical Center, New York, NY 10032 USA
| | - Stuart J. Andrews
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - James H. Garvin
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Darrell J. Yamashiro
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Wendy K. Chung
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Department of Medicine, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Stephen G. Emerson
- Department of Medicine, Columbia University Medical Center, New York, NY 10032 USA
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Peter L. Nagy
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
- Present address: MNG Laboratories, 5424 Glenridge Drive, Atlanta, GA 30342 USA
| | - Mahesh M. Mansukhani
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
| | - Andrew L. Kung
- Department of Pediatrics, Columbia University Medical Center, New York, NY 10032 USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032 USA
- Present address: Memorial Sloan Kettering Cancer Center, New York, NY 10065 USA
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