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Jovanović A, Tošić N, Marjanović I, Komazec J, Zukić B, Nikitović M, Ilić R, Grujičić D, Janić D, Pavlović S. Germline Variants in Cancer Predisposition Genes in Pediatric Patients with Central Nervous System Tumors. Int J Mol Sci 2023; 24:17387. [PMID: 38139220 PMCID: PMC10744041 DOI: 10.3390/ijms242417387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/04/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Central nervous system (CNS) tumors comprise around 20% of childhood malignancies. Germline variants in cancer predisposition genes (CPGs) are found in approximately 10% of pediatric patients with CNS tumors. This study aimed to characterize variants in CPGs in pediatric patients with CNS tumors and correlate these findings with clinically relevant data. Genomic DNA was isolated from the peripheral blood of 51 pediatric patients and further analyzed by the next-generation sequencing approach. Bioinformatic analysis was done using an "in-house" gene list panel, which included 144 genes related to pediatric brain tumors, and the gene list panel Neoplasm (HP:0002664). Our study found that 27% of pediatric patients with CNS tumors have a germline variant in some of the known CPGs, like ALK, APC, CHEK2, ELP1, MLH1, MSH2, NF1, NF2 and TP53. This study represents the first comprehensive evaluation of germline variants in pediatric patients with CNS tumors in the Western Balkans region. Our results indicate the necessity of genomic research to reveal the genetic basis of pediatric CNS tumors, as well as to define targets for the application and development of innovative therapeutics that form the basis of the upcoming era of personalized medicine.
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Affiliation(s)
- Aleksa Jovanović
- Pediatric Oncology Department, National Cancer Research Center, 11000 Belgrade, Serbia; (A.J.); (D.J.)
| | - Nataša Tošić
- Laboratory for Molecular Biomedicine, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (N.T.); (I.M.); (J.K.); (B.Z.)
| | - Irena Marjanović
- Laboratory for Molecular Biomedicine, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (N.T.); (I.M.); (J.K.); (B.Z.)
| | - Jovana Komazec
- Laboratory for Molecular Biomedicine, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (N.T.); (I.M.); (J.K.); (B.Z.)
| | - Branka Zukić
- Laboratory for Molecular Biomedicine, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (N.T.); (I.M.); (J.K.); (B.Z.)
| | - Marina Nikitović
- Pediatric Radiation Oncology Department, National Cancer Research Center, 11000 Belgrade, Serbia;
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.I.); (D.G.)
| | - Rosanda Ilić
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.I.); (D.G.)
- Neurooncology Department, Neurosurgery Clinic, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Danica Grujičić
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (R.I.); (D.G.)
- Neurooncology Department, Neurosurgery Clinic, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Dragana Janić
- Pediatric Oncology Department, National Cancer Research Center, 11000 Belgrade, Serbia; (A.J.); (D.J.)
| | - Sonja Pavlović
- Laboratory for Molecular Biomedicine, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11042 Belgrade, Serbia; (N.T.); (I.M.); (J.K.); (B.Z.)
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