MPC-10 Prognostic analysis in IDH mutant astrocytoma patient with CDKN2A/B homozygous deletion

background: IDH mutant astrocytoma has good prognosis compared with IDH wildtype one. In IDH mutant astrocytoma, However, patients with CDKN2A/B homozygous deletion (HD) are worse prognosis than non CDKN2A/B HD. Here we analyzed the prognosis of glioma patients identified with CDKN2A/B HD in our hos...

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Detalles Bibliográficos
Autores principales: Yanagisawa, Shunsuke, Satomi, Kaishi, Miyakita, Yasuji, Ohno, Makoto, Takahashi, Masamichi, Tamura, Yukie, Kawachi, Daisuke, Kikuchi, Miyu, Kitahara, Mai, Matushita, Yuko, Yoshida, Akihiko, Ichimura, Koichi, Narita, Yoshitaka
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2021
Materias:
Supplement Abstracts
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8648235/
http://dx.doi.org/10.1093/noajnl/vdab159.064
Descripción
Sumario:background: IDH mutant astrocytoma has good prognosis compared with IDH wildtype one. In IDH mutant astrocytoma, However, patients with CDKN2A/B homozygous deletion (HD) are worse prognosis than non CDKN2A/B HD. Here we analyzed the prognosis of glioma patients identified with CDKN2A/B HD in our hospital. method: There were 62 cases, and female was 26. Mean age of all cases was 41.2 and median age was 38. In IDH gene status, R132H was 59 cases (95.2%), R172K 2 (3.2%) and R132S 1 (1.6%). All 62 cases were TERT wildtype. CDKN2A/B HD were 12 cases (19.4%). In log-rank test, the group of CDKN2A/B HD was poor prognosis than non HD. In astrocytoma grade 3, CDKN2A/B HD had significantly poor prognosis (p=0.002). In Cox proportional hazard model analysis, CDKN2A/B HD was effective predictive prognostic factor as well as age and grading (p=0.03). discussion/conclusion: We showed that CDKN2A/B HD was good predictive prognostic factor in IDH mutant astrocytoma.

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