NSUN5 promotes cholangiocarcinoma progression by enhancing GLS mRNA stabilization.

ABSTRACT:

Background

NSUN5, also known as NOP2/Sun domain 5, is a pivotal RNA methyltransferase that catalyzes the formation of 5-methylcytosine (m5C). Cuproptosis, induced by elevated copper concentrations, is under investigation as a potential therapeutic strategy for cancer treatment. Despite this, the specific roles and the molecular mechanisms underlying Cuproptosis and NSUN5-mediated m5C modification in cholangiocarcinoma (CCA) remain to be fully elucidated.

Methods

Human tissue samples were collected to assess the expression levels of NSUN5 in CCA. In vitro functional assays were conducted to evaluate the biological function of NSUN5. The functional mechanism of NSUN5 on glutaminase (GLS) was investigated using RNA pull-down, RNA immunoprecipitation, molecular docking, and RNA

SUBMITTER: Shu M 

PROVIDER: S-EPMC11926023 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature