LncRNA HCP5: A Potential Biomarker for Diagnosing Gastric Cancer

被引:22
作者
Qin, Shiyi [1 ,2 ,3 ]
Yang, Lei [1 ,2 ,3 ]
Kong, Shan [1 ,2 ,3 ]
Xu, Yanhua [1 ,2 ,3 ]
Liang, Bo [4 ]
Ju, Shaoqing [1 ]
机构
[1] Nantong Univ, Affiliated Hosp, Dept Lab Med, Nantong, Peoples R China
[2] Nantong Univ, Affiliated Hosp, Res Ctr Clin Med, Nantong, Peoples R China
[3] Nantong Univ, Sch Med, Nantong, Peoples R China
[4] Nantong Univ, Affiliated Hosp, Dept Med Ultrason, Nantong, Peoples R China
来源
FRONTIERS IN ONCOLOGY | 2021年 / 11卷
基金
中国国家自然科学基金;
关键词
gastric cancer; GC; HCP5; biomarker; diagnosis; gastritis; LONG NONCODING RNA; MECHANISMS; EXPRESSION; PCR;
D O I
10.3389/fonc.2021.684531
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background It has been reported that long non-coding RNAs (lncRNAs) can be regarded as a biomarker and had particular clinical significance for early screening and gastric cancer (GC) diagnosis. Therefore, this study aimed to investigate whether serum HCP5 could be a new diagnostic biomarker. Methods Filtered out the HCP5 from the GEO database. The specificity of HCP5 was verified by real-time fluorescence quantitative PCR (qRT-PCR), and then the stability of HCP5 was verified by room temperature storage and repeated freeze-thaw experiments. Meanwhile, the accuracy of HCP5 was verified by agarose gel electrophoresis (AGE) and Sanger sequencing. Simultaneously, the expression level of serum HCP5 was detected by qRT-PCR in 98 patients with primary gastric cancer, 21 gastritis patients, 82 healthy donors, and multiple cancer types. Then, the methodology analysis was carried on. Moreover, receiver operating characteristic (ROC) was used to evaluate its diagnostic efficiency. Results qRT-PCR method had good repeatability and stability in detecting HCP5. The expression level of HCP5 in the serum of gastric cancer patients was remarkably higher than that of healthy controls, and it could distinguish gastritis patients from healthy donors. Besides, the expression of HCP5 was increased dramatically in MKN-45 and MGC-803. The FISH assay showed that HCP5 was mainly distributed in the cytoplasm of MKN-45 and BGC-823 cells. When HCP5 was combined with existing tumor markers, the diagnostic efficiency of HCP5 was the best, and the combined diagnosis of carcinoembryonic antigen (CEA), carbohydrate antigen199 (CA199), and HCP5 can significantly improve the diagnostic sensitivity. Besides, compared with the expression levels of thyroid cancer (THCA), colorectal cancer (CRC), and breast cancer (BRCA), serum HCP5 in gastric cancer was the most specific. Moreover, the high expression of serum HCP5 was related to differentiation, lymph node metastasis, and nerve invasion. The term of serum HCP5 after the operation was significantly lower than that of patients with primary gastric cancer. Conclusion Serum HCP5 can be used as a potential biomarker of non-invasive fluid biopsy, which had a unique value in the early diagnosis, development, and prognosis of gastric cancer.
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页数:12
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