Genomic characterization of cervical lymph node metastases in papillary thyroid carcinoma following the Chornobyl accident.
Nat Commun
; 15(1): 5053, 2024 Jun 13.
Article
de En
| MEDLINE
| ID: mdl-38871684
ABSTRACT
Childhood radioactive iodine exposure from the Chornobyl accident increased papillary thyroid carcinoma (PTC) risk. While cervical lymph node metastases (cLNM) are well-recognized in pediatric PTC, the PTC metastatic process and potential radiation association are poorly understood. Here, we analyze cLNM occurrence among 428 PTC with genomic landscape analyses and known drivers (131I-exposed = 349, unexposed = 79; mean age = 27.9 years). We show that cLNM are more frequent in PTC with fusion (55%) versus mutation (30%) drivers, although the proportion varies by specific driver gene (RET-fusion = 71%, BRAF-mutation = 38%, RAS-mutation = 5%). cLNM frequency is not associated with other characteristics, including radiation dose. cLNM molecular profiling (N = 47) demonstrates 100% driver concordance with matched primary PTCs and highly concordant mutational spectra. Transcriptome analysis reveals 17 differentially expressed genes, particularly in the HOXC cluster and BRINP3; the strongest differentially expressed microRNA also is near HOXC10. Our findings underscore the critical role of driver alterations and provide promising candidates for elucidating the biological underpinnings of PTC cLNM.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Tumeurs de la thyroïde
/
Accident nucléaire de Tchernobyl
/
Cancer papillaire de la thyroïde
/
Radio-isotopes de l'iode
/
Métastase lymphatique
/
Mutation
Limites:
Adolescent
/
Adult
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
Langue:
En
Journal:
Nat Commun
Sujet du journal:
BIOLOGIA
/
CIENCIA
Année:
2024
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique