Detection of TU M2PK, COX-2, and Vimentin expression in stool by colloidal gold method in patients with colorectal cancer and its clinical significance.
Shijie Huaren Xiaohua Zazhi 2021;
29:601-608. [DOI:
10.11569/wcjd.v29.i11.601]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND
Colorectal cancer is often diagnosed at middle or late stage, which brings great difficulties to the treatment and postoperative recoverys. How to find the lesion at the early stage of the disease is the key to treatment. Colloidal gold method is a rapid, simple, accurate, and economical method for the early diagnosis of colorectal cancer. Combined with the changes of related factors in feces at the early stage of disease, it provides a basis for the early diagnosis of colorectal cancer.
AIM
To detect tumor M2 pyruvate kinase (TU M2PK), cyclooxygenase-2 (COX-2), and Vimentin expression in feces of patients with colorectal cancer by colloidal gold method and analyze its clinical significanced.
METHODS
From January 2013 to January 2017, 124 patients with colorectal cancer diagnosed at our hospital were selected as an observation group, and 41 patients with negative colonoscopy during the same period were selected as a control group. The positive rates of TU M2PK, COX-2, and Vimentin between the two groups and patients with different pathological characteristics were compared, and factors related to the survival of patients with colorectal cancer were analyzed.
RESULTS
The positive expression rates of TU M2PK, COX-2, and Vimentin in the observation group were significantly higher than those in the control group (P < 0.05). The positive expression of TU M2PK, COX-2, and Vimentin in patients with colorectal cancer were significantly different among patients with different Dukes stages and tumor differentiation degrees (P < 0.05). There were statistically significant differences in the 1-year survival of patients with different Dukes stages, degrees of differentiation, and TU M2PK, COX-2, and Vimentin expression (P < 0.05). After incorporating Cox regression analysis and adjusting for other confounding factors, the hazard ratio (HR) was 3.774 for Dukes stage B, 4.433 for stage C, and 5.536 for stage D. The HR value was 0.414 for moderate differentiation and 0.295 for high differentiation; . The HR value was 5.006 for TU M2PK expression, 4.997 for COX-2 expression, and 4.671 for Vimentin expression. The 1-year survival rate of patients with positive expression of TU M2PK, COX-2, and Vimentin was significantly lower than that of patients with negative expression (P < 0.05).
CONCLUSION
TU M2PK, COX-2, and Vimentin are abnormally expressed in the stool of patients with colorectal cancer. The detection of the above indicators by colloidal gold method has potential application value in screening for colorectal cancer and assessing the survival of patients.
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