Ayman Mubarak

The Guanine-nucleotide binding protein 2 (GNB2) encodes for β2 subunit (Gβ2) of the G-protein complex. Keeping in view the increased demand of reliable biomarkers in cancer, the current study was planned to extensively explored GNB2 expression variation and its roles in different cancers using online available databases and diverse methodology. In view of our results, the GNB2 was notably up-regulated relative to corresponding controls in twenty three cancer types. As well, the elevated expression of GNB2 was found to be associated with the reduced overall survival (OS) of the Liver Hepatocellular Carcinoma (LIHC) and Rectum Adenocarcinoma (READ) only out of all analyzed cancer types. This implies GNB2 plays vital role in the tumorigenesis of LIHC and READ. Several additional analysis also explored six critical pathways and few important correlations related to GNB2 expression and different other parameters such as promoter methylation, tumor purity, CD8+ T immune cells infiltration, and genetic alteration, and chemotherapeutic drugs. In conclusion, GNB2 gene has been identified in this study as a shared potential biomarker (diagnostic and prognostic) of LIHC and READ.

Background Rheumatoid arthritis (RA) is a chronic systemic inflammatory disorder which mainly affects small joints, occurs most commonly in middle‐aged adults, and can be fatal in severe cases. The exact etiology of RA remains unknown. However, uncontrolled expression of pro‐inflammatory cytokines and chemokines can contribute to the pathogenesis of RA. Aim In the current study, we assessed the potential of serum concentrations of interleukin (IL)‐1β, IL‐6, tumor necrosis factor (TNF)‐α, IL‐8, and C‐C motif chemokine ligand (CCL)5 as early predictive markers for RA. Methods In addition to clinical examination, blood samples were collected from 100 Saudi patients recently diagnosed with early RA for basic and serological tests, including rheumatoid factor (RF), C‐reactive protein (CRP), and erythrocyte sedimentation rate (ESR). Sera of 32 healthy individuals were used as controls. Specific enzyme‐linked immunosorbent assay was used to quantify the serum IL ‐ 1β, IL‐6, TNF‐α, IL‐8, and CCL5 levels in the samples. Results Our results indicated that RF, CRP, and ESR levels were higher in RA patients compared to controls. Furthermore, serum levels of IL ‐ 1β, IL‐6, IL‐8, and CCL5, but not TNF‐α, significantly increased in RA patients compared to controls. Conclusion Overall, the findings suggested that IL‐1β, IL‐6, IL‐8, and CCL5 can be used as biomarkers in the early diagnosis of RA.