出 处:《中华临床医师杂志(电子版)》2015年第14期26-30,共5页Chinese Journal of Clinicians(Electronic Edition)
基 金:青岛市科技基金项目(2008-wszo1003)
摘 要:目的探讨细胞外基质金属蛋白酶诱导分子(EMMPRIN)在胰腺肿瘤组织、血清以及肿瘤微环境中的表达及临床意义。方法应用QRT-PCR、免疫组化以及ELISA方法检测50例胰腺导管细胞癌(PDCA)、20例导管内乳头状黏液腺瘤(1PMN)、lO例浆液性囊腺瘤(SCN)、10例黏液性囊腺瘤(MCN)、10例胰腺神经内分泌瘤(NET)患者肿瘤组织、10例健康对照组胰腺组织及血清中EMMPRIN的表达,分析EMMPRIN表达与患者性别、年龄、组织学分化程度、肿瘤神经浸润、淋巴结转移、临床分期的关系。结果胰腺各组肿瘤组织中EMMPRIN mRNA水平明显增高,即PDCA[(4148.14±1825.36)copies/μl,P=-0.000]、NET[(4654.23±2168.48)copies/μl,P=0.000]、IPMN[(3332.54±1837.47)copies/μl,P=0.000]、SCN[(3328.66±1618.36)copies/μl,P=0.000]及MCN[(2275.27±1019.40)copies/μl,P=0.000]是正常胰腺组织[(649.90±408.22)copies/μl]的4.3~7.2倍,差异有统计学意义;在标本血清中EMMPRIN蛋白在PDCA[(5.53±4.14)ng/100μl,P=-0.000]、IPMN[(3.28±2.77)ng/100μl,P=0.0011、NET[(5.48±4.21)ng/100μl,P=0.002]、SCN[(1.13±0.49)ng/100μl,P=-0.007]、MCN[(2.77±4.24)ng/100μl,P=0.000]的表达均明显高于正常对照组[(0.63±0.18)ng/lOOμl],差异有统计学意义。EMMPRIN在肿瘤组织及血清中的表达与胰腺导管细胞癌的分期有关(X^2组织=O.278,P=0.041:X^2血清=0.424,P=0.001),伴有神经浸润患者较无神经浸润患者血清中EMMPRIN表达增加(X^2血清=4.728,P=0.03),EMMPRIN表达与患者的年龄、性别、肿瘤部位、肿瘤大小及淋巴结转移无明显相关。结论EMMPRIN在各种胰腺肿瘤组织及血清中高表达,可能与其恶性程度相关。Objective To study the expression and clinical significance of extraceUular matrix metalloproteinase inducer (EMMPRIN) in pancreatic neoplasm's tissues, sera, as well as in tumor microenvironment. Methods Methods of QRT-PCR, immunohistochemistry and ELISA were applied to test the expression of EMMPRIN in both tissues and sera in 50 cases of pancreatic ductal cell carcinoma (PDCA), 20 cases of intraductal papillary mutinous neoplasm (IPMN), 10 cases of serous cystic neoplasm (SCN), 10 cases of mutinous cystic neoplasm (MCN), 10 cases of pancreatic neuroendocrine tumor (NET) as well as 10 cases of healthy control (N), and to analyze the relationship between EMMPRIN expression and patients' gender, age, h/stologic differentiation, lymph node metastasis, clinical stage. Results EMMPRIN mRNA levels was significantly higher in each group of pancreatic neoplasm tissues, PDCA (4 148.14±l 825.36) copies/μl, NET (4 654.23±2 168.48) copies/μl, IPMN (3 332.54±1 837.47) copies/μl, SCN (3 328.66±1 618.36) copies/μl, and MCN (2 275.27±1 019.40) copies/μl, ranging from 4.3 to 7.2 times of the healthy control group (649.903±408.22) copies/μl (P=0.000); EMMPR1N protein was statistically highly expressed in the sera of PDCA (5.53±4.14)ng/100 μl (P=0.000), IPMN (3.28±2.77) ng/100 μl (P=001), NET (5.48±4.21) ng/100 μl (P=002), SCN (1.13±0.49) ng/100 μl (P=0.007), MCN (2.77±4.24) ng/100 μl(P=0.000) compared with the healthy control group (0.63±0.18) ng/100μl; There was a positive correlation of EMMPRIN expression in tissues and sera between PDCA and tumor stages (X^2tissuc=0.278, P=0.041;X^2sera=0.424, P=0.001). Patients with perineural invasion secreted more EMMPRIN in sera than those without perineural invasion (X^2scra=4.728, P=0.03), and there seemed no relationship between EMMRIN expression and patient's age, sex, tumor location, tumor size and lymph node metastasis. Conclusion EMMPRIN was high
关 键 词:细胞外基质金属蛋白酶诱导分子 胰腺肿瘤 肿瘤微环境
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