A Novel Gene Mutation Detected With Breast Cancer in a Vietnamese Family by Targeted Next-Generation Sequencing: A Case Report

• Main Authors: Tran Van Thuan, Nguyen Van Chu, Pham Hong Khoa, Nguyen Tien Quang, Dao Van Tu, Nguyen Thi Quynh Tho, Phung Thi Huyen, Bui Hai Ha, Pham Thi Han, Duong Minh Long, Bach Thi Hoai Phuong
• Format: Article
• Language: English
• Published: SAGE Publishing 2020-01-01
• Series: Breast Cancer: Basic and Clinical Research
• Online Access: https://doi.org/10.1177/1178223420901555
• ISSN: 1178-2234

Hereditary breast cancer is an inherited genetic condition, mainly caused by BRCA1 and BRCA2 gene mutations. These genetic changes can increase the risks of breast and ovarian cancers in women, while prostate and breast cancers in men. Especially, mutations in either BRCA1 or BRCA2 genes take important roles in early-onset breast cancer. The present study focused on a 47-year-old Vietnamese woman with breast cancer by applying targeted next-generation sequencing technique. A novel BRCA1 gene mutation, namely NM_007294.3 (BRCA1): c.4998insA (p. Tyr1666Terfs), was identified both in this patient and in some of the members in her family proved the fact that the mutated genes passed down through generations. This change may exponentially initiate breast cancer risks and become a valuable marker for exact clinical prognosis and treatment.