Investigation of PD-L1 RS4143815 polymorphism and serum PD-L1 levels in patients with chronic HBV infection

Pham Thi Minh Huyen, Dang Thi Ngoc Dung, Dao Phuong Giang, Le Huu Song, Ngo Thi Uyen, Quyen Dang Tuyen, Nghiem Xuan Hoan

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Abstract

The study was conducted to investigate the polymorphism of PD-L1 rs4143815 by using tetra-primer-ARMS technique and protein PD-L1 levels were analyzed by Elisa in patients with chronic hepatitis B virus (HBV) infection and healthy controls. The study participants included 127 chronic HBV patients, 157 hepatocellular carcinoma (HCC) patients, and 240 healthy controls. Results showed that there was no significant difference in genotype frequencies between HBV patients and healthy controlled group, and between CHB group and HCC group. Chronic HBV patients had higher PD-L1 level than healthy patients, and PD-L1 level correlates with clinical features and progress of disease in chronic hepatitis B virus infection.

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References

1. WHO. Global hepatitis report, 2017. 2017. http://www.who.int/hepatitis/publications/global-hepatitis-report2017/en/
2. WHO Presentative Office-Vietnam (http://www.wpro.who.int/vietnam/topics/hepatitis/factsheet/en/). 2018. http://www.wpro.who.int/vietnam/topics/hepatitis/factsheet/en/
3. Chisari FVaCF. Hepatitis B virus immunopathogenesis. Annu Rev Immunol. 1995; 13: 29 - 60.
4. Chang JJ, Lewin SR. Immunopathogenesis of hepatitis B virus infection.Immunol Cell Biol.2007; 85(1): 16 - 23.
5. Abers MS, Kontoyiannis DP. Checkpoint Inhibition and Infectious Diseases: A Good Thing. Trends Mol Med.2019; 1485: 1 - 13.
6. Federico Pio Fabrizio DT, Antonio Rossi, Angelo Sparaneo, Stefano Castellana and Lucia Anna Muscarella. Gene code CD274/PD-L1: from molecular basis toward cancer immunotherapy. Therapeutic Advances in Medical Oncology. 2018; 10: 1 - 18.
7. Hoon DS FR, Tanaka R, Chong KK, Alix-Panabières C and Pantel K. Molecular mechanisms of metastasis. J Surg Oncologist.2011; 103: 508 - 517.
8. Bartel DP. MicroRNAs: Genomics, biogenesis, mechanism, and function. Cell Death and Disease. 2004; 116: 281 - 297.
9. Eugene VM, Tom M. Multilevel regulation of gene expression by microRNAs. Science. 2008; 319 (5871): 1789 - 1790. doi: 10.1126/science.1152326.
10. Ju Zoua DW, Tao Lic, Xanwen Wangc, Yan Liua, Sijie Tanb. Association of PD-L1 geners4143815 C > G polymorphism and human cancer susceptibility: A systematic review and meta-analysis. Pathol res pract. 2019; 215(2): 229 - 234.
11. Xie Q1 CZ, Xia L1, Zhao Q1, Yu H2, Yang Z3. Correlations of PD-L1 gene polymorphisms with susceptibility and prognosis in hepatocellular carcinoma in a Chinese Han population. Gene.2018; 674: 188 - 194.
12. Bộ Y tế. Quyết đinh về việc ban hành hướng dẫn chẩn đoán và điều trị bệnh viêm gan virus B. 2019;
13. Bộ Y tế Việt Nam. Hướng dẫn chẩn đoán và điều trị Ung thư tế bào gan nguyên phát 2012;
14. M Mühlbauer, M Fleck, T Weiss, et al. PD-L1 is induced in hepatocytes by viral infection and by interferon-alpha and -gamma and mediates T cell apoptosis. J Hepatol.2006; 45: 520 – 528. Doi: 10.1055/s-2006-931751
15. Iwai Y TS, Ikegawa M, Okazaki T, Honjo T. PD-1 inhibits antiviral immunity at the effector phase in the liver. J Exp Med.2003; 198: 39 – 50.
16. Rehermann B. Pathogenesis of chronic viral hepatitis: differential roles of T cells and NK cells. Nat Med. 2013; 19(7): 859 - 68.
17. Wang W SJ, Li F et al. A frequent somatic mutation in CD274 3′-UTR leads to protein overexpression in gastric cancer by disrupting miR-570 binding. Hum Mutat.2012; 33: 480 – 484.
18. Wang W LF, Mao Y et al. A miR-570 binding site polymorphism in the B7-H1 gene is associated with the risk of gastric adenocarcinoma. Hum Genet. 2013; 132: 641 – 648.
19. Matoulkova E ME, Vojtesek B, Hrstka R. The role of the 3'untranslated region in posttranscriptional regulation of protein expression in mammalian cells. RNA Biol.2012; 9: 563 - 76.