Genomic instability in congenital lung malformations in children
Topic overview
This study reveals that 95% of congenital lung malformations (CPAMs and sequestrations) exhibit genomic instability, with 30% harboring tumor-associated genetic variants including mutations near the TERT oncogene and in RET, FANCA, and MET genes. These findings suggest CLMs may predispose to malignancy when combined with carcinogen exposure, potentially explaining the observed association between congenital lung lesions and subsequent lung cancer development.
Key takeaways
- 95% of congenital lung malformations showed genomic instability with multiple clusters of mutated cells on whole-genome sequencing.
- 30% of CLMs harbored tumor transformation-related variants in genes like RET, FANCA, MET, and the 5p15.33 region near TERT oncogene.
- Genomic instability was present regardless of histopathology type (CPAM, intralobar or extralobar sequestration).
- CLMs may represent a pre-malignant state that increases lung cancer risk when combined with carcinogen exposure.
- Routine resection of asymptomatic CLMs may be justified given the molecular evidence of malignant potential.
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How to cite: GlobalCastMD. Genomic instability in congenital lung malformations in children. GlobalCastMD Medical Library. 2024-09-05. https://dev.library.globalcastmd.com/article/9133?via_space=staycurrentmd
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