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Real-World Genomic Characteristics and Prognostic Association in Advanced Papillary Thyroid Carcinoma
Soji Toda1, Yukihiko Hiroshima2,3, Hiroyuki Iwasaki1
1Department of Endocrine Surgery, Kanagawa Cancer Center, Kanagawa, Japan.
JCO Precision Oncology
|July 10, 2026
Summary
Genomic alterations in advanced papillary thyroid cancer (PTC) were analyzed. Mutations in the PI3K or cell cycle pathways are linked to poor prognosis in advanced PTC patients.
Area of Science:
- Oncology
- Genomics
- Molecular Biology
Background:
- Papillary thyroid carcinoma (PTC) typically has a favorable prognosis.
- Limited knowledge exists on genomic alterations in advanced PTC and their prognostic impact.
- Mitogen-activated protein kinase (MAPK) pathway alterations initiate most thyroid cancers.
Purpose of the Study:
- To investigate gene alterations and their prognostic impact in advanced PTC.
- To clarify the frequency, co-occurrence, and exclusivity of gene alterations in advanced PTC.
- To identify potential therapeutic targets for advanced PTC.
Main Methods:
- Real-world database study utilizing nationwide clinical data and comprehensive genomic profiling (CGP) results.
- Analysis of 322 patients with advanced PTC who underwent CGP testing.
- Survival analysis to determine the impact of specific gene alterations on prognosis.
Main Results:
- The MAPK pathway showed the highest frequency of alterations (96%).
- Common mutations included TERT promoter and BRAF.
- Alterations in PTEN and CDKN2A were independent poor prognostic factors.
- Patients with PI3K or cell cycle pathway alterations had significantly shorter overall survival.
Conclusions:
- Gene alteration patterns in advanced PTC were elucidated.
- PI3K and cell cycle pathway alterations are associated with poor prognosis in advanced PTC.
- Targeting PI3K or cell cycle pathways may be a promising therapeutic strategy.
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