THE ASSOCIATION OF HELICOBACTER PYLORI ICEA, CAGA, VACA GENOTYPES RELATED WITH HISTOPATHOLOGICAL OF GASTRIC CANCER

Trần Việt Hùng, Trần Ngọc Ánh, Nguyễn Quang Duật, Dương Quang Huy, Hoàng Thị Thu Hà, Đỗ Thị Bích Ngọc, Trần Tuấn Việt, Trần Văn Phú

Main Article Content

Abstract

Background: Gene cagA and vacA are particularly noticeable in gastric cancer. There have been few studies on the analysis of iceA gene expression related to H. pylori cagA and vacA genes in gastric cancer patients. Patients and Methods: The objective of this study was to investigate the expression of H. pylori with the iceA, cagA, vacA positive have relationship with histopathology of gastric cancer. Results: The gastric cancer patients with poor differentiated image accounted for the highest proportion in both cagA and vacA positive groups at 55.4% and 54.5%. There was no difference in the iceA1 and iceA2 genotypes between tubular and ring cells in gastric cancer patients with p> 0.05. It is not possible that the secretory contains H. pylori that carries the iceA gene. The iceA1 genotype accounts for 54% in the poorly differentiated group, and 32% in the medium differentiated group. The iceA2 genotype accounts for 50% in the poorly differentiated group and 40% in the medium differentiated group. The difference between genotypes A1 and A2 in patients with gastric cancer in the moderately and poorly differentiated group was statistically significant with p <0.05.

Article Details

References

1. IARC (2014), Helicobacter pylori Eradication as a Strategy for Preventing Gastric Cancer. IARC Working Group Report Volume 8,p. 1-181.
2. Peek, R.M. and Crabtree JE. (2006). Helicobacter infection and gastric neoplasia. J. Pathol. 208: p. 233-248.
3. Sahara S, S.M., Vilaichone RK. (2012) Role of Helicobacter pylori cagA EPIYA motif and vacA genotypes for the development of gastrointestinal diseases in Southeast Asian countries: A meta-analysis. BMC infectious Diseases. 12(223).
4. Van Doorn LJ.(1998). Clinical relevance of the cagA, vacA, and iceA status of Helicobacter pylori. Gastroenterology. 115(1): p. 58-66.
5. Yamaoka Y.(1999). Relationship between Helicobacter pylori iceA, cagA, and vacA Status and Clinical Outcome: Studies in Four Different Countries. J Clin Microbiol. 37(7): p. 2274-2279.
6. Trần Ngọc Ánh (2006) Liên quan giữa các typ của vi khuẩn Helicobacter Pylori với bệnh lý ung thư dạ dày tại Việt Nam. Y học lâm sàng, (4): 29-32.
7. Lê Quang Hưng, Hà Thị Minh Thi (2013). Nghiên cứu xác định kiểu gene CagA và VacA của Helicobacter pylori ở bệnh nhân ung thư dạ dày. Tạp chí Y Dược học - Trường Đại học Y Dược Huế. 14: p. 118-125.
8. Trần Đình Trí (2016). Nghiên cứu hình thái mô bệnh học và các yếu tố độc lực cagA, vacA của Helicobacter pylori ở bệnh nhân ung thư dạ dày. Tạp chí Y Dược học lâm sàng 108, 11(5), tr. 31-38