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Novel alterations in IFT172 and KIFAP3 may induce basal cell carcinoma.


ABSTRACT:

Background

Basal cell carcinoma (BCC) is the most commonly occurring neoplasm in patients with Gorlin syndrome. It is widely accepted that multiple basal cell carcinomas simultaneously develop in middle-aged patients with this syndrome. However, the presence of driver genes other than the PTCH1 in Gorlin syndrome has not been explored. This study aimed to identify common gene mutations other than PTCH1 in simultaneously occurring basal cell carcinomas in patients with Gorlin syndrome via exome sequencing analysis.

Methods

Next-generation sequencing analysis was performed using four basal cell carcinoma samples, one dental keratinocyte sample, and two epidermoid cyst samples, which were surgically resected from one patient with Gorlin syndrome on the same day.

Results

Overall, 282 somatic mutations were identified in the neoplasms. No additional somatic mutations in PTCH1, PTCH2, TP53, and SMO were identified. However, enrichment analysis showed that multiple genes, such as IFT172 and KIFAP3, could regulate ciliary functions important for Hedgehog signaling.

Conclusion

The development of BCCs in patients with Gorlin syndrome may be triggered by mutations that cause substantial dysfunction of cilia.

SUBMITTER: Onodera S 

PROVIDER: S-EPMC8529737 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Publications

Novel alterations in IFT172 and KIFAP3 may induce basal cell carcinoma.

Onodera Shoko S   Morita Nana N   Nakamura Yuriko Y   Takahashi Shinichi S   Hashimoto Kazuhiko K   Nomura Takeshi T   Katakura Akira A   Kosaki Kenjiro K   Azuma Toshifumi T  

Orphanet journal of rare diseases 20211021 1


<h4>Background</h4>Basal cell carcinoma (BCC) is the most commonly occurring neoplasm in patients with Gorlin syndrome. It is widely accepted that multiple basal cell carcinomas simultaneously develop in middle-aged patients with this syndrome. However, the presence of driver genes other than the PTCH1 in Gorlin syndrome has not been explored. This study aimed to identify common gene mutations other than PTCH1 in simultaneously occurring basal cell carcinomas in patients with Gorlin syndrome via  ...[more]

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