The expression of JNK and MRP1 in colorectal carcinoma / 中国基层医药

Objective To investigate the chnicopathogenical significance of c-jun N-terminal kinase(JNK) and multidrug resistance associated protein 1 (MRP1) expression in colorectal cancer. Methods The expression of JNK and MRP1 was detected in a tissue microarray containing 72 spots of colorectal cancer tissue and 40 spots of nor-mal colorectal tissue by immunohistochemisty. Results The positive expression rate of JNK and MRP1 expression was 47.22% and 51.39% respectively in colorectal cancer,significantly higher than that in normal colon tissue. JNK protein expression was not closely related to gender, age, tumor size and location (P>0.05), but closely related to tumor differentiation,lymph node metastasis,distsnt metastasis and Dukes staging (P<0.05). MRP1 protein expres-sion was not closely related to gender,age,tumor size,location and tumor differentiation(P> 0.05), but closely relat-ed to lymph node metastasis, distant metastasis, Dukes staging (P<0.05). Conclusions The JNK expression in cancer is corrlated with maligant biological behavior and may be involved in the chemotherapeutic resistance by upreg-ulating the expression of MRP1.

Clinical significance of acute-phase proteins in the recurrence of gastric cancer / 中国普通外科杂志

Objective To determine the value of acute phase protein in the early diagnosis of recurrence after curative gastric cancer surgery. Methods Acute phase serum protein level was measured before and after the gastric cancer surgery in 120 patients,and was compared with that of the control group. At 1, 3, 6, 9, 12 months after the operation in 87 patients undergoing curative gastric cancer surgery, the levels of acute phase proteins were measured. They were followed up for at least 12 months or until death. Results The levels of serum C reactive protein(CRP), ?1 antitrypsin (?1 AT) and ? acid glycoprotein (? AG) in gastric cancer group were significantly higher than those in the control group (P0.05). In patients who underwent curative gastric cancer surgery in a certain period after the operation, the serum levels of CRP, ?1 AT and ? AG were significantly lower than those before the surgery(P0.05).There were significant difference in CRP,?1 AT and ? AG between the recurrence groups and nonrecurrence group before and after the operation (P