Expression and clinical significance of minichromosome maintenance protein 3(MCM3) in gastric cancer tissues
10.3760/cma.j.cn121382-20210831-00109
- VernacularTitle:微小染色体维持蛋白3（MCM3）在胃癌组织中的表达及临床意义
- Author:
Si LI
1
;
Xiaolong LI
;
Rui SONG
;
Xueqian CHEN
;
Weizhen YANG
;
Yang LIU
Author Information
1. 保定市第一中心医院普通外一科 071000
- Keywords:
Gastric cancer;
Minichromosome maintenance protein 3;
Proliferation;
Biological target;
PCNA
- From:
International Journal of Biomedical Engineering
2022;45(1):36-40,46
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the expression level and clinical significance of minichromosome maintenance protein 3(MCM3) in human gastric cancer.Methods:The expression levels of MCM3 mRNA and protein in gastric cancer and adjacent normal tissues were analyzed using public databases such as TCGA, CCLE and HPA. The clinicopathological features of 69 patients with gastric cancer were retrospectively analyzed, and the expression levels of MCM3 protein in tumor tissues and adjacent normal tissues were detected by immunohistochemical staining, and the relationship between it and clinicopathological features was analyzed. The interaction network of MCM3 proteins was analyzed using the STRING database.Results:The expression levels of MCM3 mRNA and protein in gastric cancer tissues were significantly higher than those in adjacent normal tissues ( P<0.05), and its high expression was correlated with the size of gastric cancer tumors ( P<0.05). In gastric cancer tissue, the expression of MCM3 was correlated with the expression level of proliferating cell nuclear antigen (PCNA) ( R=0.61, P<0.01), and there may be a protein-protein interaction. Conclusions:MCM3 plays an important role in gastric cancer by interacting with PCNA, and it is expected to become a new diagnostic and therapeutic target.
