ArticleInternational journal of molecular sciences2022
Differential Expression of RSK4 Transcript Isoforms in Cancer and Its Clinical Relevance.
Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 3 citations in OpenAlex.
- A patent perspective of RSK inhibitors to treat cancer (2020-present).Expert opinion on therapeutic patents · 2026Review
- Rational Design of Novel Thiazole-Clubbed Pyrimidine-Linked Hydrazone Conjugates as Promising RSK4 Inhibitors for Esophageal Squamous Cell Carcinoma: Molecular Dynamics Simulations and In Vitro Evaluation.Pharmaceuticals (Basel, Switzerland) · 2026Article
- Updating mRNA variants of the human RSK4 gene and their expression in different stressed situations.Heliyon · 2024Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
While we previously revealed RSK4 as a therapeutic target in lung and bladder cancers, the wider role of this kinase in other cancers remains controversial. Indeed, other reports instead proposed RSK4 as a tumour suppressor in colorectal and gastric cancers and are contradictory in breast malignancies. One explanation for these discrepancies may be the expression of different RSK4 isoforms across cancers. Four RNAs are produced from the RSK4 gene, with two being protein-coding. Here, we analysed the expression of the latter across 30 normal and 33 cancer tissue types from the combined GTEx/TCGA dataset and correlated it with clinical features. This revealed the expression of RSK4 isoforms 1 and 2 to be independent prognostic factors for patient survival, pathological stage, cancer metastasis, recurrence, and immune infiltration in brain, stomach, cervical, and kidney cancers. However, we found that upregulation of either isoform can equally be associated with good or bad prognosis depending on the cancer type, and changes in the expression ratio of isoforms fail to predict clinical outcome. Hence, differential isoform expression alone cannot explain the contradictory roles of RSK4 in cancers, and further research is needed to highlight the underlying mechanisms for the context-dependent function of this kinase.
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