5-脂氧合酶在子宫内膜异位症中的表达及与血管生成的关系

目的探讨5-脂氧合酶（5-LOX）在子宫内膜异位症（EMs）组织中的表达情况，分析5-LOX与EMs血管生成的关系。方法采用免疫组织SABC法检测32例EMs患者在位内膜和异位内膜组织中5-LOX、VEGF的表达和MVD值，并与25例正常子宫内膜进行比较。结果5-LOX、VEGF的表达及MVD值在异位内膜组高于在位内膜组和对照组（P〈0．05），三者在在位内膜组高于对照组（P〈0．05）。在异位内膜组中，5-LOX、VEGF的表达和MVD值在Ⅲ/Ⅳ期均高于Ⅰ/Ⅱ期（P〈0．05）；5-LOX、VEGF的表达及MVD值与病情严重程度呈正相关（P〈0．05）。在异位内膜组和在位内膜组中，5-LOX与VEGF的表达、MVD值均呈正相关（P〈0．05）。结论5-LOX在EMs组织中的高表达可能与EMs的发病有关，并可通过上调VEGF的表达促进EMs的新生血管的形成。

The expression of 5-LOX in endometriosis and the relationship with angionesis

Objective To investigate the expression of 5-lipoxygenase (5-LOX) in endometriosis and analyze the relationship of 5-LOX and angionesis in endometriosis. Methods Immunochemical method was used to determine the expression of 5-LOX, VEGF, and the value of MVD in ectopic endometrium (ec-topic group) and eutopic endometrium (eutopic group) of 32 patients with EMs and in eutopic endometrium ( control group) of 25 patients without EMs. Result The expressions of 5-LOX and VECF and the value of MVD in ectopic groups were 0. 43 ± 0.09,0. 39 ±0.07 and 0.40 ± 0.09, respectively, which were higher than that of eutopic group and control group. The expressions of 5-LOX and VEGF and the value of MVD in eutopic group were 0. 35 ± 0. 08, 0.30 ± 0. 06 and 0. 33 ± 0. 08, respectively, which were higher than that of control group ( P <0.05). In ectopic group, the expressions of 5-LOX and VEGF, and the value of MVD in stage III/IV, were much higher than that of stage I/II ( P <0. 05); the expressions of 5-LOX and VEGF and the value of MVD were related to the severe of endometriosis through Spearman correlation analysis. The expressions of 5-LOX were shown to be significantly related to the expressions of VEGF and the value of MVD in ectopic and eutopic groups ( P <0. 05). Conclusion There is a high expression of 5-LOX in endometriosis, suggesting that 5-LOX may be participate in the pathogenesis of endometriosis. 5-LOX may promote angiogenesis of EMs through up - regulating the expression of VEGF.