Journal
CURRENT OPINION IN PEDIATRICS
Volume 30, Issue 6, Pages 855-863Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/MOP.0000000000000680
Keywords
cancer predisposition syndrome; diseasome; germline mutation; network analysis; pediatric hematology-oncology; primary immunodeficiency
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Funding
- Styrian Children's Cancer Foundation (Steirische Kinderkrebshilfe)
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Purpose of review The risk of cancer is higher, and its outcome is worse in patients with primary immunodeficiency (PID) than in members of the general population. Thus, the inter-relationship of malignant diseases with PIDs requires more study. Recent findings Large genetic screens identified a vast number of germline mutations in childhood cancer patient samples. Although TP53 was the most frequent single gene identified as mutated, many PID disorders like DNA repair defects are among the inborn causes of childhood cancer. We provide a comprehensive analysis of compiled data from seven recent studies that focused on germline genetic landscapes and preexisting conditions in pediatric oncology. As potentially causal germline variants were identified in approximate to 8% of malignancies in children and adolescents, we visualized this proportion as the 'tips of the icebergs'. The results of additional network analyses showed the shared patterns of germline mutations in various malignancies and yielded a spatial distribution of the 'icebergs'. Summary The 'iceberg map of germline mutations in childhood cancers' was created to increase the awareness of the inborn genetic underpinnings of childhood malignancies and their relationships with immunodeficiencies. Needs and perspectives of clinical immunologists and pediatric oncologists to both improve patient care and guide research at this critical interface are discussed.
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