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Chinese Journal of Colorectal Diseases(Electronic Edition) ›› 2020, Vol. 09 ›› Issue (06): 552-557. doi: 10.3877/cma.j.issn.2095-3224.2020.06.003

Special Issue:

• Original Article • Previous Articles     Next Articles

Analysis of HMGB1 gene expression and prognostic value in colon tumors based on Oncomine and TCGA datasets

Xianhao Su1, Huipeng Wang2, Wenjie Chen2, Jiamen Shen2, Tao Ye2, Yuankun Cai2,()   

  1. 1. Department of General Surgery, Minhang Hospital, Fudan University, Shanghai 201199, China
    2. Department of General Surgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200433, China
  • Received:2020-01-04 Online:2020-12-25 Published:2020-12-25
  • Contact: Yuankun Cai
  • About author:
    Corresponding author: Cai Yuankun, Email:

Abstract:

Objective

To study the expression and prognosis of high mobility group protein B1 (HMGB1) gene in colon tumor.

Methods

The HMGB1-related data of 2 191 colon tumor patients were mined from Oncomine and TCGA datasets. The Mann-Whitney U test was used to compare the differential expression of HMGB1 between colonic adenoma and carcinoma, left and right half colon cancer, carcinoma in situ and infiltrating cancer, mucinous adenocarcinoma and other pathological types, with lymph node metastasis and without lymph node metastasis, with distant metastasis and without distant metastasis of colon cancer. Then the Kaplan Meier survival curve was drawn.

Results

HMGB1 gene was highly expressed in colon cancer tissues and adenoma tissues than in normal colon tissues (P<0.001), higher in colon cancer tissues than in colonic adenoma tissues, overexpressed in left colon cancer compared to right colon cancer (P<0.05), lower in mucinous adenocarcinoma of the colon than other pathological tissue types (P<0.05), overexpressed in infiltrating carcinoma compared with carcinoma in situ (P<0.001), overexpressed in patients with regional lymph node metastasis (P<0.05), and overexpressed in metastatic colon cancer than non-metastatic colon cancer (P<0.05). Overexpression of HMGB1 gene indicates a higher 5-year survival rate (P=0.011), especially for female patients (P=0.006).

Conclusion

HMGB1 gene can be used as a marker to evaluate the invasion depth, lymphatic metastasis, distant metastasis and prognosis of colon cancer.

Key words: Colonic neoplasms, HMGB1, Oncomine, TCGA, Survival analysis

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