Expression and significance of P-gp, LRP, MRP in gastric cancer / 肿瘤研究与临床
Cancer Research and Clinic
;
(6): 247-249,254, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-596942
ABSTRACT
Objective To detect the expression of multidrug resistance proteins P-gp, LRP, MRP, and analyze the relationship between them and the clinicopathological factors. Methods The expression of P-gp,LRP, MRP in formalin-fixed paraffin-embedded tissue sections was determined by a labelled StreptavidinPeroxidase (SP) immunohistochemical technique, and the results were analyzed in correlation with clinicopathological data. None of these patients received chemotherapy prior to surgery. Results The positive rates of P-gp, LRP, MRP were 86.4 %, 84.7 % and 27.1%, respectively. The difference between the positive rate of P-gp and MRP was significant statistically, as well as the difference between the expression of MRP and LRP. No significant difference was observed between P-gp and LRP, but the positively correlation between the expression of P-gp and LRP was observed. No significant correlation between the expression of P-gp, LRP, MRP and the grade of differentiation were observed. The expression of P-gp was correlated with clinical stages positively (r=0.742), but the difference with the expression of P-gp in different stages was not significant. Conclusion The expression of P-gp, LRP, MRP in patients with gastric cancer without prior chemotherapy are high and indicates that innate drug resistance may exist in gastric cancer.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Cancer Research and Clinic
Year:
2010
Type:
Article
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