Sonikpreet Aulakh, Joanne Xiu, Andrew Hinton, Sourat Darabi, Michael J Demeure, Soma Sengupta, Santosh Kesari, David M Ashley, Ashley Love Sumrall, Michael J Glantz, David Spetzler
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引用次数: 0
Abstract
Background: High-grade gliomas (HGGs) are the most aggressive type of gliomas and have the poorest outcomes. Chromatin remodeling (CR) genes have been implicated in multiple oncogenic pathways in numerous cancer types. In gliomagenesis, CR genes have been implicated in regulating the stemness of glioma cells, the tumor microenvironment (TME), and resistance to therapies.
Methods: We performed molecular profiling of 4244 HGGs and evaluated associations of CR mutations with other cancer-related biomarkers, infiltration by immune cells, and immune gene expression. We also evaluated the association between CR mutations and survival in wild-type IDH HGG patients.
Results: Nearly 10% of HGGs carry mutations in CR genes, with a higher prevalence (15%) in HGGs with IDH mutations. Analysis of cooccurrence with other biomarkers revealed that CR-mutated HGGs possess favorable genetic alterations which may have prognostic value. CR-mutated HGGs with wild-type IDH demonstrated colder TME and worse OS overall compared to the CR-wild-type HGGs.
Conclusions: Our study reveals the prognostic effects of CR mutations in HGG and points to several biomarker candidates that could suggest sensitivity to emerging therapeutic strategies.
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