Germline Variants in 32 Cancer-Related Genes among 700 Chinese Breast Cancer Patients by Next-Generation Sequencing: A Clinic-Based, Observational Study
| Autor: | Liu Yang, Fei Xie, Chang Liu, Jin Zhao, Taobo Hu, Jinbo Wu, Xiaotao Zhao, Shu Wang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
BRCA2 Protein
China BRCA1 Protein Organic Chemistry breast cancer next-generation sequencing Chinese population germline mutations BRCA1/2 High-Throughput Nucleotide Sequencing Breast Neoplasms General Medicine Catalysis Computer Science Applications Inorganic Chemistry Germ Cells Ki-67 Antigen Humans Female Genetic Predisposition to Disease Physical and Theoretical Chemistry Molecular Biology Germ-Line Mutation Spectroscopy |
| Zdroj: | International Journal of Molecular Sciences; Volume 23; Issue 19; Pages: 11266 |
| ISSN: | 1422-0067 |
| DOI: | 10.3390/ijms231911266 |
| Popis: | Breast cancer (BC) is associated with hereditary components, and some deleterious germline variants have been regarded as effective therapeutic targets. We conducted a clinic-based, observational study to better understand the distribution of deleterious germline variants and assess any clinicopathological predictors related to the variants among Chinese BC patients using a 32 cancer-related genes next-generation sequencing panel. Between November 2020 and February 2022, a total of 700 BC patients were recruited, and 13.1% (92/700) of them carried deleterious germline variants in 15 cancer-related genes, including 37 (37/700, 5.3%) in BRCA2, 29 (29/700, 4.1%) in BRCA1, 8 (8/700, 1.1%) in PALB2, 4 (4/700, 0.6%) in NBN, 3 (3/700, 0.4%) in MRE11A, 3 (3/700, 0.4%) in TP53 and 12 (12/700, 1.7%) in other genes. There were 28 novel variants detected: 5 in BRCA1, 14 in BRCA2, and 9 in non-BRCA1/2 genes. The variants in panel genes, HRR (homologous recombination repair)-related genes, and BRCA1/2 were significantly associated with the following clinicopathological factors: age at the initial diagnosis of BC, family history of any cancer, molecular subtype, Ki-67 index, and hereditary risk. In conclusion, we further expanded the spectrum of germline deleterious variants in Chinese BC patients, and the clinicopathological predictors of variants were identified to facilitate clinical genetic testing and counseling for appropriate individuals. |
| Databáze: | OpenAIRE |
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