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HLA-A*30:01 and HLA-A*33:03 are the protective alleles while HLA-A*01:01 serves as the susceptible gene for cervical cancer patients in Xinjiang, China

1 Department of Radiation Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830000, China
2 MRC Human Immunology Unit, The Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, UK
3 Department of Radiation Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University; Key Laboratory of Oncology in Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang 830000, China

Correspondence Address:
Ruo-Zheng Wang,
Department of Radiation Oncology, The Affiliated Tumor Hospital of Xinjiang Medical University, 789 Suzhou Road, Urumqi, Xinjiang 830000
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Source of Support: None, Conflict of Interest: None

Objective: This study aims to investigate the distribution of HLA-A genes and identify alleles related to cervical cancer. Materials and Methods: A total of 252 cervical cancer patients (56 Han ethnic and 196 Uyghur ethnic) and 213 controls (103 Han ethnic and 110 Uyghur ethnic) were recruited in this study. HLA-A alleles were examined by polymerase chain reaction with sequence-specific primers. The frequencies of different HLA-A alleles were compared between the two ethnic groups as well as patients and controls. The correlation of HLA-A frequencies with various clinical characteristics and short-term treatment efficacy was analyzed. Results: (1) Significantly higher frequencies of HLA-A*03:01 and HLA-A*03:02 and lower frequencies of HLA-A*11:01, HLA-A*24:02, and HLA-A*30:01 were observed in the Uyghur control groups than in Han control groups (P ≤ 0.05). (2) The frequency of HLA-A*01:01 in patients was significantly higher than controls. In contrast, the frequencies of HLA-A*30:01 and HLA-A*33:03 were lower in patients (P ≤ 0.05). (3) The frequency of HLA-A*30:01 in Han patients was lower than Han control group (P ≤ 0.05). However, there was no statistically significant in the frequency of HLA-A between Uyghur patients and controls (P > 0.05). (4) There was no significant association between HLA-A alleles and HPV16 or squamous cell carcinoma antigen levels (P > 0.05). (5) The frequency of HLA-A*30:01 allele in complete response + partial response group was higher than stable disease + progressive disease group (P ≤ 0.05). Conclusions: People from two ethnic groups displayed different HLA-A gene distribution. HLA-A*30:01 and HLA-A*33:03 alleles are the protective factors to cervical cancer patients from Xinjiang while HLA-A*01:01 serves as the susceptible gene.

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