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Rana HQ, Koeller DR, Walker M, Unal B, Levine AS, Chittenden A, Isidro RA, Hayes CP, Manam MD, Buehler RM, Manning DK, Barletta JA, Hornick JL, Garber JE, Ghazani AA. Advancing Precision Oncology in Hereditary Paraganglioma-Pheochromocytoma Syndromes: Integrated Interpretation and Data Sharing of the Germline and Tumor Genomes. Cancers (Basel) 2024; 16:947. [PMID: 38473309 PMCID: PMC10931192 DOI: 10.3390/cancers16050947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/22/2024] [Accepted: 02/03/2024] [Indexed: 03/14/2024] Open
Abstract
Standard methods of variant assessment in hereditary cancer susceptibility genes are limited by the lack of availability of key supporting evidence. In cancer, information derived from tumors can serve as a useful source in delineating the tumor behavior and the role of germline variants in tumor progression. We have previously demonstrated the value of integrating tumor and germline findings to comprehensively assess germline variants in hereditary cancer syndromes. Building on this work, herein, we present the development and application of the INT2GRATE|HPPGL platform. INT2GRATE (INTegrated INTerpretation of GeRmline And Tumor gEnomes) is a multi-institution oncology consortium that aims to advance the integrated application of constitutional and tumor data and share the integrated variant information in publicly accessible repositories. The INT2GRATE|HPPGL platform enables automated parsing and integrated assessment of germline, tumor, and genetic findings in hereditary paraganglioma-pheochromocytoma syndromes (HPPGLs). Using INT2GRATE|HPPGL, we analyzed 8600 variants in succinate dehydrogenase (SDHx) genes and their associated clinical evidence. The integrated evidence includes germline variants in SDHx genes; clinical genetics evidence: personal and family history of HPPGL-related tumors; tumor-derived evidence: somatic inactivation of SDHx alleles, KIT and PDGFRA status in gastrointestinal stromal tumors (GISTs), multifocal or extra-adrenal tumors, and metastasis status; and immunohistochemistry staining status for SDHA and SDHB genes. After processing, 8600 variants were submitted programmatically from the INT2GRATE|HPPGL platform to ClinVar via a custom-made INT2GRATE|HPPGL variant submission schema and an application programming interface (API). This novel integrated variant assessment and data sharing in hereditary cancers aims to improve the clinical assessment of genomic variants and advance precision oncology.
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Affiliation(s)
- Huma Q. Rana
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA 02215, USA (A.C.)
- Division of Population Sciences, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Diane R. Koeller
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA 02215, USA (A.C.)
| | - McKenzie Walker
- Division of Genetics, Brigham and Women’s Hospital, Boston, MA 02115, USA (B.U.)
| | - Busra Unal
- Division of Genetics, Brigham and Women’s Hospital, Boston, MA 02115, USA (B.U.)
| | - Alison Schwartz Levine
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA 02215, USA (A.C.)
| | - Anu Chittenden
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA 02215, USA (A.C.)
| | - Raymond A. Isidro
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Connor P. Hayes
- Division of Genetics, Brigham and Women’s Hospital, Boston, MA 02115, USA (B.U.)
| | - Monica D. Manam
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Ryan M. Buehler
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA 02215, USA (A.C.)
| | - Danielle K. Manning
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Justine A. Barletta
- Harvard Medical School, Boston, MA 02115, USA
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Jason L. Hornick
- Harvard Medical School, Boston, MA 02115, USA
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Judy E. Garber
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA 02215, USA (A.C.)
- Division of Population Sciences, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Arezou A. Ghazani
- Harvard Medical School, Boston, MA 02115, USA
- Division of Genetics, Brigham and Women’s Hospital, Boston, MA 02115, USA (B.U.)
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA 02115, USA
- Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
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Schwartz A, Manning DK, Koeller DR, Chittenden A, Isidro RA, Hayes CP, Abraamyan F, Manam MD, Dwan M, Barletta JA, Sholl LM, Yurgelun MB, Rana HQ, Garber JE, Ghazani AA. An integrated somatic and germline approach to aid interpretation of germline variants of uncertain significance in cancer susceptibility genes. Front Oncol 2022; 12:942741. [PMID: 36091175 PMCID: PMC9453486 DOI: 10.3389/fonc.2022.942741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Genomic profiles of tumors are often unique and represent characteristic mutational signatures defined by DNA damage or DNA repair response processes. The tumor-derived somatic information has been widely used in therapeutic applications, but it is grossly underutilized in the assessment of germline genetic variants. Here, we present a comprehensive approach for evaluating the pathogenicity of germline variants in cancer using an integrated interpretation of somatic and germline genomic data. We have previously demonstrated the utility of this integrated approach in the reassessment of pathogenic germline variants in selected cancer patients with unexpected or non-syndromic phenotypes. The application of this approach is presented in the assessment of rare variants of uncertain significance (VUS) in Lynch-related colon cancer, hereditary paraganglioma-pheochromocytoma syndrome, and Li-Fraumeni syndrome. Using this integrated method, germline VUS in PMS2, MSH6, SDHC, SHDA, and TP53 were assessed in 16 cancer patients after genetic evaluation. Comprehensive clinical criteria, somatic signature profiles, and tumor immunohistochemistry were used to re-classify VUS by upgrading or downgrading the variants to likely or unlikely actionable categories, respectively. Going forward, collation of such germline variants and creation of cross-institutional knowledgebase datasets that include integrated somatic and germline data will be crucial for the assessment of these variants in a larger cancer cohort.
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Affiliation(s)
- Alison Schwartz
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Danielle K. Manning
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, United States
| | - Diane R. Koeller
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Anu Chittenden
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Raymond A. Isidro
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Connor P. Hayes
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
| | - Feruza Abraamyan
- Harvard Medical School, Boston, MA, United States
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
| | - Monica Devi Manam
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, United States
| | - Meaghan Dwan
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Justine A. Barletta
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Lynette M. Sholl
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Matthew B. Yurgelun
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Division of Population Sciences, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Huma Q. Rana
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Division of Population Sciences, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Judy E. Garber
- Division of Cancer Genetics and Prevention, Dana-Farber Cancer Institute, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Division of Population Sciences, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Arezou A. Ghazani
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, United States
- *Correspondence: Arezou A. Ghazani,
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