The Integrated Genomic Landscape of Thymic Epithelial Tumors.
Cancer Cell
; 33(2): 244-258.e10, 2018 02 12.
Article
in En
| MEDLINE
| ID: mdl-29438696
ABSTRACT
Thymic epithelial tumors (TETs) are one of the rarest adult malignancies. Among TETs, thymoma is the most predominant, characterized by a unique association with autoimmune diseases, followed by thymic carcinoma, which is less common but more clinically aggressive. Using multi-platform omics analyses on 117 TETs, we define four subtypes of these tumors defined by genomic hallmarks and an association with survival and World Health Organization histological subtype. We further demonstrate a marked prevalence of a thymoma-specific mutated oncogene, GTF2I, and explore its biological effects on multi-platform analysis. We further observe enrichment of mutations in HRAS, NRAS, and TP53. Last, we identify a molecular link between thymoma and the autoimmune disease myasthenia gravis, characterized by tumoral overexpression of muscle autoantigens, and increased aneuploidy.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Thymoma
/
Thymus Neoplasms
/
Neoplasms, Glandular and Epithelial
/
Transcription Factors, TFII
/
Mutation
Type of study:
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Cancer Cell
Journal subject:
NEOPLASIAS
Year:
2018
Document type:
Article
Affiliation country:
Estados Unidos