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Serum and Glucocorticoid-Inducible Kinase 1 (SGK1) in NSCLC Therapy
Ilaria Guerriero1, Gianni Monaco1, Vincenzo Coppola2,3
1Biogem Institute for Genetic Research Gaetano Salvatore, Ariano Irpino, 83031 Avellino, Italy.
Abstract:
Non-small cell lung cancer (NSCLC) remains the most prevalent and one of the deadliest cancers worldwide. Despite recent success, there is still an urgent need for new therapeutic strategies. It is also becoming increasingly evident that combinatorial approaches are more effective than single modality treatments. This review proposes that the serum and glucocorticoid-inducible kinase 1 (SGK1) may represent an attractive target for therapy of NSCLC. Although ubiquitously expressed, SGK1 deletion in mice causes only mild defects of ion physiology. The frequent overexpression of SGK1 in tumors is likely stress-induced and provides a therapeutic window to spare normal tissues. SGK1 appears to promote oncogenic signaling aimed at preserving the survival and fitness of cancer cells. Most importantly, recent investigations have revealed the ability of SGK1 to skew immune-cell differentiation toward pro-tumorigenic phenotypes. Future studies are needed to fully evaluate the potential of SGK1 as a therapeutic target in combinatorial treatments of NSCLC. However, based on what is currently known, SGK1 inactivation can result in anti-oncogenic effects both on tumor cells and on the immune microenvironment. A first generation of small molecules to inactivate SGK1 has already been already produced.
Insights
Serum and glucocorticoid-inducible kinase 1 (SGK1) is a promising therapeutic target for non-small cell lung cancer (NSCLC). Inactivating SGK1 may inhibit tumor growth and alter the immune microenvironment, offering new combinatorial treatment strategies.
Area of Science:
- Oncology
- Molecular Biology
- Immunology
Background:
- Non-small cell lung cancer (NSCLC) is a leading cause of cancer-related mortality globally.
- Current therapeutic strategies for NSCLC require enhancement, particularly through combinatorial approaches.
- Serum and glucocorticoid-inducible kinase 1 (SGK1) is frequently overexpressed in NSCLC tumors.
Purpose of the Study:
- To evaluate serum and glucocorticoid-inducible kinase 1 (SGK1) as a potential therapeutic target for NSCLC.
- To explore the role of SGK1 in promoting tumor cell survival and modulating the immune microenvironment.
- To assess the potential of SGK1 inhibition in combinatorial NSCLC therapies.
Main Methods:
- Review of current literature on SGK1 function in cancer biology and immunology.
- Analysis of SGK1 expression patterns in NSCLC.
- Examination of preclinical data on SGK1 inhibitors.
Main Results:
- SGK1 overexpression in NSCLC is likely stress-induced, creating a therapeutic window.
- SGK1 promotes cancer cell survival through oncogenic signaling pathways.
- SGK1 influences immune cell differentiation, promoting pro-tumorigenic phenotypes.
Conclusions:
- SGK1 inactivation exhibits anti-oncogenic effects on both tumor cells and the immune microenvironment in NSCLC.
- Targeting SGK1 represents a promising strategy for novel combinatorial therapies in NSCLC.
- Early-generation SGK1 inhibitors are available, warranting further clinical investigation.
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