Detection of gene mutations with PCR and anti-colon cancer monoclonal antibody in tissue and stool of patients with colorectal cancer / 中国临床药理学与治疗学
Chinese Journal of Clinical Pharmacology and Therapeutics
;
(12)2004.
Article
in Chinese
| WPRIM
| ID: wpr-555224
ABSTRACT
AIM:
To detect sequence and mutation of K-ras oncogene in tissue and stool DNA of patients with colorectal cancer in order to provide a method of noninvasive and simple colorectal cancer diagnosis.METHODS:
DNA was separated and purified from colorectal cancer tissue or stool of patient with colorectal cancer, then the K-ras gene was amplified by PCR and PCR products were cloned, the K-ras gene was sequenced, and the mutation was identified. The expression of color/colorectal cancer antigen was inspected by immunohistochemical technique. Stool sample of patient with colorectal cancer was detected with enzyme-linked immunosorbent assay (ELISA).RESULTS:
K-ras gene sequence of the stool was completely same as that of the tissue of the patient;K-ras mutation was detected in one case. There was relativity between the mutation of K-ras gene and the pathology type of colorectal cancer and the expression level of colorectal cancer antigen in stool sample.CONCLUSION:
It is feasible that colorectal tumors can be detected by a noninvasive method based on the molecular pathogenesis of the disease. Detecting K-ras gene mutations of stool DNA can provide bases for the screening, early detection, and prognosis to patients with colorectal cancer.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Diagnostic study
/
Screening study
Language:
Chinese
Journal:
Chinese Journal of Clinical Pharmacology and Therapeutics
Year:
2004
Type:
Article
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