Detection of genetic mutations in 855 cases of papillary thyroid carcinoma by next generation sequencing and its clinicopathological features.
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OBJECTIVE: To investigate the genetic mutations in patients with papillary thyroid carcinoma (PTC) and their clinicopathological features by next generation sequencing (NGS). METHODS: NGS technology was used to detect genetic mutations in PTC patients, and clinicopathological features were collected. RESULTS: ①Among 855 PTC patients, 810 patients had genetic mutations, and 45 patients had no genetic mutation. ②BRAF mutation was associated with tumor diameter (P < 0.001) and histological subtypes (P = 0.002). The abundance of V600E mutation was associated with gender (P = 0.004), tumor diameter (P < 0.001), bilateral presentation (P = 0.001), extrathyroidal extension (P < 0.001), lymphatic metastasis (P < 0.001), histological subtypes (P = 0.002) and TNM staging (P = 0.000); The different mutation abundance of V600E was associated with tumor diameter (P < 0.001), multifocal presentation (P = 0.047), bilateral presentation (P = 0.001), extrathyroidal extension (P = 0.001), lymphatic metastasis (P < 0.001), histological subtypes (P = 0.022) and TNM staging (P = 0.000). ③RET fusion was associated with tumor diameter (P < 0.001) and lymphatic metastasis (P = 0.005). ④TERT mutation was associated with gender (P = 0.043), tumor diameter (P < 0.001), extrathyroidal extension (P = 0.028) and TNM staging (P = 0.017). ⑤RAS mutation was associated with histological subtypes (P < 0.001). ⑥NTRK and PIK3CA mutations were not associated with clinicopathological features. CONCLUSION: NGS technology can comprehensively analyze the genetic mutations in PTC patients, which provides important prompts for the occurrence, development, diagnosis and treatment of PTC. In addition, BRAF V600E mutation, RET fusion and TERT mutation are associated with a number of high-risk clinicopathological features. Detection of genetic mutations in PTC patients by NGS is of great significance.