RAB8A a new biomarker for endometrial cancer?
1Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital affiliated to Capital Medical University, No, 8 Gongti South Road, Beijing 100020, China. bjzhangzhy@sina.cn.
Background:
We aimed to find different proteins between dendritic cells (DCs) and tumor antigen-pulsed DCs to help find a new biomarker for endometrial cancer (EC).
Methods:
Mononuclear cells were isolated from cord blood and induced to DCs by cytokines. A comparative proteomic analysis was performed on DCs and tumor lysate-pulsed DCs by liquid chromatography with tandem mass spectrometry (LC-MS/MS). Differential proteins were identified by Western blot analysis.
Results:
The expression of Ras-related protein Rab-8A (RAB8A) was found to be different in the in two kinds of cells. This phenomenon was also proven in endometrial cancer tissues.
Conclusions:
RAB8A might be a new biomarker for endometrial cancer. Using LC-MS/MS to perform a comparative proteomic analysis about DCs and tumor lysate-pulsed DCs may help us to find new biomarker of cancer.
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