Background
Stress granules formation is closely associated with the progression of hepatocellular carcinoma (HCC). Factors determination this process remain to be elucidated. In this study, stress granule-related genes were validated as a predictor of HCC.
Methods
The stress granules-related associated genes were collected from the MSGP database and the MsigDB database. A novel prognostic risk scoring model were constructed by paired gene signature method. We identified eukaryotic translation initiation factor 4A3 (EIF4A3) and karyopherin subunit alpha 2 (KPNA2) as candidate prognostic biomarkers, and their correlation with both prognosis and immune infiltration in HCC were evaluated. The expression of EIF4A3 and KPNA2 in HCC tissues was detected through immunohistochemistry (IHC).
Results
Through pairing of all DESG gene, we obtained a total of 16251 significance pairs. Subsequently, 93 pairs of all pairs containing EIF4A3 were extracted in this research. As a stress granule formation regulator, KPNA2 displayed the greatest correlations with EIF4A3 in HCC. Hyperactivated EIF4A3 and KPNA2 is associated with the poor clinical outcome of HCCs after hepatic resection. Involvement of EIF4A3 and KPNA2 in immune infiltration have been showed.
Conclusion
Our study identified coexistence of EIF4A3 and KPNA2 dysregulation inform poor clinical outcomes in HCC.
Background and AimsLittle is known about the role of chromosome 12 open reading frame 49 (C12ORF49)-induced metabolic signal transduction in tumor growth. We investigated the relationship between C12ORF49 expression and prognosis in colorectal cancer (CRC) patients. Methods C12ORF49 protein expression was measured in CRC tissues by Western blot and immunohistochemistry staining. Knock out of C12ORF49 in CRC cells was then performed, and the role of C12ORF49 in CRC cell proliferation and growth was examined. The expression of C12ORF49 in CRC was analyzed in Gene Expression Profiling Interactive Analysis (GEPIA) databases. A prognosis model with 11 C12ORF49-associated genes (CAGs) was generated by TCGA databases. Results C12ORF49 expression was significantly higher in CRC tumor tissue than in non-tumor tissue. Furthermore, in vitro and in vivo loss-of-function experiments, showed that C12ORF49 plays critical roles in promoting tumor cell growth. There was a significant correlation between C12ORF49 protein and the presence of tumor necrosis. C12ORF49 is critical for its interaction with SREBF1, TMEM41A, and S1PR3 in the poor prognosis of CRC. Conclusions Our results suggest that C12ORF49 plays a key role in CRC tumor growth.
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