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ABSTRACT: Objective
The E3 ubiquitin ligase is well recognized as a significant contributor to glioblastoma (GBM) progression and has promise as a prospective therapeutic target. This study explores the contribution of E3 ubiquitin ligase RNF122 in the GBM progression and the related molecular mechanisms.Methods
RNF122 expression levels were evaluated using qRT-PCR, WB, and IHC, while functional assays besides animal experiments were used to assess RNF122's effect on GBM progression. We also tested the RNF122 impact on JAK2/STAT3/c-Myc signaling using WB.Results
RNF122 was upregulated in GBM and correlated to the advanced stage and poor clinical outcomes, representing an independent prognostic factor. Based on functional assays, RNF122 promotes GBM growth and cell cycle, which was validated further in subsequent analyses by JAK2/STAT3/c-Myc pathway activation. Moreover, JAK2/STAT3 signaling pathway inhibitor WP1066 can weaken the effect of overexpression RNF122 on promoting GBM progression.Conclusion
Our results revealed that RNF122 caused an aggressive phenotype to GBM and was a poor prognosticator; thus, targeting RNF122 may be effectual in GBM treatment.
SUBMITTER: Xiao Q
PROVIDER: S-EPMC11366496 | biostudies-literature | 2024 Sep
REPOSITORIES: biostudies-literature
Xiao Qingbao Q Xue Kaming K Li Lin L Zhu Kai K Fu Rong R Xiong Zhiyong Z
CNS neuroscience & therapeutics 20240901 9
<h4>Objective</h4>The E3 ubiquitin ligase is well recognized as a significant contributor to glioblastoma (GBM) progression and has promise as a prospective therapeutic target. This study explores the contribution of E3 ubiquitin ligase RNF122 in the GBM progression and the related molecular mechanisms.<h4>Methods</h4>RNF122 expression levels were evaluated using qRT-PCR, WB, and IHC, while functional assays besides animal experiments were used to assess RNF122's effect on GBM progression. We al ...[more]