Laboratory Medicine ›› 2026, Vol. 41 ›› Issue (4): 331-336.DOI: 10.3969/j.issn.1673-8640.2026.04.004

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Role of combined determination of serum sB7-H3,gp73 and TAT-2 in the differential diagnosis of colorectal cancer and tubular adenoma

YAN Jing1, DONG Kui1(), WU Jie2, LIU Haitao1   

  1. 1 Department 1 of Gastroenterologythe First Hospital of Handan City,Handan 056000Hebei, China
    2 Pharmacy DepartmentHandan Central Hospital,Handan 056000Hebei, China
  • Received:2024-11-22 Revised:2025-12-05 Online:2026-04-30 Published:2026-05-07

Abstract:

Objective To investigate the role of combined determination of serum soluble B7-homologue 3(sB7-H3),Golgi protein 73(gp73) and tumor-associated trypsinogen-2(TAT-2) in the differential diagnosis of colorectal cancer and tubular adenoma. Methods A total of 86 patients with colorectal cancer(colorectal cancer group),86 patients with tubular adenoma(tubular adenoma group) and 86 healthy subjects(healthy control group) were enrolled from the First Hospital of Handan City from December 2020 to December 2022. The colorectal cancer patients were classified into stage Ⅰ-Ⅱ group(54 cases) and stage Ⅲ-Ⅳ group(32 cases) according to TNM staging. Serum levels of sB7-H3,gp73,TAT-2,carcinoembryonic antigen(CEA) and carbohydrate antigen 19-9(CA19-9) and fecal occult blood status were determined. The efficacy of single and combined determinations of each indicator in differentiating colorectal cancer and tubular adenoma was evaluated using receiver operating characteristic(ROC) curve. Multivariate Logistic regression analysis was used to assess the influencing factors of colorectal cancer occurrence. Results The serum levels of sB7-H3,gp73,TAT-2,CEA and CA19-9 and the proportion of positive fecal occult blood in healthy control group,tubular adenoma group and colorectal cancer group were increased successively(P<0.001). The serum levels of sB7-H3,gp73,TAT-2,CEA and CA19-9 in stage Ⅲ-Ⅳ group were higher than those in stage Ⅰ-Ⅱ group(P<0.05). Positive fecal occult blood and elevated CEA,CA19-9,sB7-H3,gp73 and TAT-2 were risk factors for colorectal cancer occurrence(P<0.05). The areas under curves(AUC) for differentiating healthy control from tubular adenoma and differentiating healthy control from colorectal cancer by single determinations of serum CEA,CA19-9,sB7-H3,gp73 and TAT-2 and their combined determination were 0.701,0.710,0.751,0.754,0.829,0.904,and 0.781,0.758,0.809,0.780,0.798 and 0.900,respectively. The AUC for differentiating colorectal cancer and tubular adenoma were 0.701,0.718,0.730,0.739,0.710 and 0.908,respectively. Conclusions The combined determination of serum sB7-H3,gp73 and TAT-2 can be used as indicators for the differential diagnosis of colorectal cancer and tubular adenoma.

Key words: Soluble B7-homologue 3, Golgi protein 73, Tumor-associated trypsinogen-2, Colorectal cancer, Tubular adenoma, Differential diagnosis

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