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Modeling Spontaneous Metastatic Renal Cell Carcinoma mRCC in Mice Following Nephrectomy
Published on: April 29, 2014
Effect of AKT silence on malignant biological behavior of renal cell carcinoma cells
Zuan Li1, DeYong Nong1, Bincai Li1
1Department of Urology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
Background:
As the most common malignant tumor of primary renal tumor, renal cell carcinoma (RCC) is the highly invasive disease with high mortality. AKT is a serine/threonine kinase that play a critical role in the phosphoinositide 3-kinase (PI3K) signaling pathway, and it is an attractive target for RCC treatment. The aim of present study was to investigate the effect of AKT silence on malignant behavior of renal cell carcinoma cells.
Methods:
AKT expression was quantified by immunohistochemistry in tumor tissues and normal tissues. The human RCC cell lines Caki-2 cell were chosen for this study. The optimal silencing siRNA was subsequently selected by RT-qPCR and western blot. The effect of AKT silence on RCC cells was investigated by CCK8 assay, transwell assay, scratch test and flow cytometry. The AKT1 expression in human renal cell carcinoma tissue was detected by immunohistochemical staining.
Results:
The AKT in Caki-2 cells was silenced successfully. The results shown AKT silence could inhibit cell proliferation, invasion, and, migration. In addition, AKT silence could promote Caki-2 cell apoptosis with prevention of RCC cells move from G1 phase to S phase. Immunohistochemical staining revealed significant difference of expression of AKT1 in RCC tissues and normal renal tissues. Taken together, AKT family members might involve in malignant growth of RCC, and might be a potential therapeutic target.
Conclusion:
Our data show that AKT silence inhibited cell proliferation, invasion, and, migration of Caki-2 cell, and promoted Caki-2 cell apoptosis. Moreover, AKT silence prevented RCC cells move from G1 phase to S phase. Therefore, AKT may act as an effective therapeutic target for RCC.
Insights
Silencing AKT in renal cell carcinoma (RCC) cells inhibited proliferation, invasion, and migration while promoting apoptosis. These findings suggest AKT is a potential therapeutic target for treating this aggressive cancer.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Renal cell carcinoma (RCC) is a highly invasive malignancy with significant mortality.
- The AKT signaling pathway plays a crucial role in cellular processes and is a target for RCC treatment.
Purpose of the Study:
- To investigate the impact of AKT gene silencing on the malignant behaviors of renal cell carcinoma cells.
Main Methods:
- Immunohistochemistry to quantify AKT expression in tumor and normal tissues.
- RT-qPCR and Western blot to select optimal siRNA for AKT silencing in Caki-2 cells.
- Cell proliferation, invasion, migration, and apoptosis assays (CCK8, Transwell, scratch, flow cytometry) to assess the effects of AKT silencing.
Main Results:
- Successful silencing of AKT in Caki-2 cells was confirmed.
- AKT silencing significantly inhibited cell proliferation, invasion, and migration.
- AKT silencing promoted apoptosis and prevented cell cycle progression from G1 to S phase in RCC cells.
- Immunohistochemical analysis showed differential AKT1 expression in RCC tissues compared to normal tissues.
Conclusions:
- AKT silencing effectively suppresses malignant behaviors of renal cell carcinoma cells.
- AKT plays a role in the malignant growth of RCC and represents a potential therapeutic target.
- Targeting AKT may offer a novel strategy for RCC treatment.
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