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Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
Published on: September 15, 2023
High expression of NEK2 promotes gastric cancer progression via activating AKT signaling
Hao Wan1, Lin Xu2, Huangbin Zhang1
1Department of General Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi, China.
Abstract:
Never in mitosis gene A-related kinase 2 (NEK2) has been recognized as an oncogene involved in the initiation and progression of various human cancers. However, our knowledge is still lacking in regard to the function of NEK2 in gastric cancer, the most common cancer in Eastern Asia associated with poor prognosis. Therefore, in the present study, we investigated the association of NEK2 with gastric cancer. We found that the development of gastric cancer is associated with NEK2 overexpression, particularly in patients with large tumor size and lymph node metastasis. We also provided evidence that NEK2 overexpression binds to and inhibits protein phosphatase 1 (PP1), which subsequently activates AKT and the downstream oncogenic pathways. As a result, via AKT/HIF1α axis, the glucose metabolism is reprogrammed towards aerobic glycolysis to provide rapid energy for the growth of gastric cancer cells. Moreover, the autophagic activity is suppressed via AKT/mTOR axis, leading to impaired response to cancer treatment and enhanced cell survival. In contrast, inactivating AKT by NEK2 silencing decreases aerobic glycolysis and promotes autophagic cell death, which eventually inhibits the growth of gastric cancer cell. All these results revealed that NEK2 promotes gastric cancer progression via activating AKT-mediated signaling pathways, which expanded our knowledge on gastric cancer pathogenesis and also provided novel target for clinical treatment.
Insights
Never in mitosis gene A-related kinase 2 (NEK2) drives gastric cancer by activating AKT pathways. NEK2 overexpression promotes tumor growth and impairs treatment response, suggesting NEK2 as a therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Never in mitosis gene A-related kinase 2 (NEK2) is an identified oncogene in various cancers.
- Gastric cancer, prevalent in Eastern Asia, has a poor prognosis, and NEK2's role remains unclear.
- Understanding NEK2's function in gastric cancer is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the association between NEK2 and gastric cancer development and progression.
- To elucidate the molecular mechanisms by which NEK2 influences gastric cancer.
- To explore NEK2 as a potential therapeutic target for gastric cancer.
Main Methods:
- Investigated NEK2 expression levels in gastric cancer patients.
- Examined the interaction between NEK2 and protein phosphatase 1 (PP1).
- Analyzed the activation of AKT signaling pathways and downstream targets (HIF1α, mTOR) upon NEK2 modulation.
- Assessed the impact of NEK2 on glucose metabolism and autophagy.
- Evaluated the effects of NEK2 silencing on gastric cancer cell growth and treatment response.
Main Results:
- NEK2 is overexpressed in gastric cancer, correlating with larger tumor size and lymph node metastasis.
- NEK2 overexpression inhibits PP1, leading to AKT activation and downstream oncogenic signaling.
- The AKT/HIF1α axis promotes aerobic glycolysis for cancer cell energy.
- The AKT/mTOR axis suppresses autophagy, enhancing cell survival and treatment resistance.
- NEK2 silencing reduces aerobic glycolysis, induces autophagic cell death, and inhibits tumor growth.
Conclusions:
- NEK2 promotes gastric cancer progression through AKT-mediated activation of oncogenic pathways.
- NEK2 influences glucose metabolism and autophagy in gastric cancer cells.
- Targeting NEK2 offers a potential therapeutic strategy for gastric cancer treatment.
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