Submit Manuscript  

Article Details


Role of Cervical Cancer Radiotherapy in the Expression of EGFR and p53 Gene

[ Vol. 17 , Issue. 1 ]

Author(s):

Yan Cheng, Kuntian Lan, Xiaoxia Yang, Dongxia Liang, Li Xia and Jinquan Cui*   Pages 23 - 29 ( 7 )

Abstract:


Background: Cervical cancer arises from the cervix and it is the 3rd most diagnosed malignancy and a foremost cause of cancer-related death in females. On the other hand, the expressions of EGFR and p53 are two important proteins observed in various studies on cervical cancer.

Objective: The study aims to evaluate the beneficial effect of radiotherapy based on the regulation of p53 and EGFR gene in patients with cervical cancer.

Methods: In this investigation, the regulation of important molecules responsible for cancer cell proliferation and DNA repair in the cervical cancer cell line was evaluated. The study comprises of an evaluation based on clinical study design from the malignant biopsies of 15 cervical cancer patients. The patterns of expression for the p53 gene and Epidermal Growth Factor Receptor (EGFR) were evaluated in DoTc2 and SiHa cervical cancer cell lines using clonogenic assay, western blotting and immunohistochemistry techniques from the malignant biopsies of the 15 patients.

Results: The study observed that the regulation of p53 and EGFR was very weak after the exposure of the radiation. In addition, the expression of p53 and EGFR was observed in malevolent biopsy samples after radiation with a dosage of 1.8 Gy radiations. Additionally, the expression of p53 and EGFR was able to induce by a single dose of radiotherapy in the malignant biopsies whereas it was unable to induce in DoTc2 and SiHa cervical cancer cells.

Conclusion: The study observed that radiation exposed cancer cell lines modulates the expression of p53 and EGFR gene. The study also highlights the gap between in vitro experimental models and clinical study design.

Keywords:

Cervical cancer, cell line, p53, EGFR, malignancy, human papillomavirus (HPV).

Affiliation:

Department of Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, Department of Gynecology, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan 450008, Department of Gynecology, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan 450008, Department of Gynecology, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan 450008, Department of Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, Department of Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014



Read Full-Text article