Immediate early response gene 5 in cervical cancer tissues: radiosensitivity and clinical significance
2016
Objective
To investigate the expression features of immediate early response gene 5(IER5) in patients with cervical cancer before and after radiotherapy, and to study the relationship of IER5 with radiosensitivity and clinical outcomes.
Methods
From 2014 to 2015, 39 patients with stage Ⅱb-Ⅲb cervical cancer undergoing concurrent chemoradiotherapy were enrolled as subjects. Cervical cancer tissues were collected before and after radiotherapy with doses of 2-6, 10, 20, and 30 Gy. Western blotting was used to determine the relative expression of IER5 protein.
Results
The expression of IER5 protein in cervical cancer tissues was significantly higher after exposure to 10, 20, and 30 Gy of radiation (t=3.06, 4.01, 6.99, P 5 cm.
Conclusions
The expression of IER5 protein in patients with cervical cancer is significantly higher after radiotherapy. Moreover, IER5 expression gets higher with the increase in radiation dose, indicating that IER5 is related to the radiosensitivity of patients with cervical cancer. The smaller the tumor, the more radiation dose-dependent the IER5 expression.
Key words:
Immediate-early response 5; Radiosensitivity; Cervical neoplasms/concurrent chemoradiotherapy
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