卵巢上皮性癌组织中KiSS-1基因及其受体GPR54 mRNA的表达及其意义

目的探讨肿瘤转移抑制基因KiSS-1及其受体GPR54mRNA在卵巢上皮性癌组织中的表达及其意义。方法采用RT-PCR技术检测37例卵巢上皮性癌、15例卵巢交界性上皮性肿瘤、15例卵巢良性上皮性肿瘤及11例正常卵巢组织中KiSS-1基因及其受体GPR54mRNA的表达,并分析其与各临床病理指标的相关性。结果KiSS-1mRNA在卵巢上皮性癌及卵巢交界性上皮性肿瘤组织中的阳性表达率(分别为68%、60%)及表达水平(分别为0·82±0·09、0·80±0·10)均显著高于卵巢良性上皮性肿瘤及正常卵巢组织(分别为20%、18%和0·65±0·10、0·66±0·06;P均<0·05);且KiSS-1mRNA在卵巢上皮性癌组织中的阳性表达率和表达水平均与手术病理分期和淋巴结转移有明显相关性(P<0·05)。GPR54mRNA在卵巢上皮性癌、卵巢交界性上皮性肿瘤、卵巢良性上皮性肿瘤及正常卵巢组织中的阳性表达率(分别为70%、67%、60%和45%)及表达水平(分别为0·79±0·07、0·76±0·10、0·73±0·07和0·78±0·08)分别比较,差异均无统计学意义(P>0·05);GPR54mRNA在卵巢上皮性癌组织中的阳性表达率和表达水平与手术病理分期、病理分级、病理类型、淋巴结转移及腹水生成均无相关性(P>0·05)。结论KiSS-1基因及其受体GPR54可能在抑制卵巢上皮性癌浸润和转移的过程中起重要作用。

Expression and significance of KiSS-1 and its receptor GPR54 mRNA in epithelial ovarian cancer

OBJECTIVE: To study the expression and significance of metastasis suppressor gene KiSS-1 and its receptor GPR54 in epithelial ovarian cancer. METHOD: The expression and their clinical significance of KiSS-1 and GPR54 were evaluated by RT-PCR in 37 patients with epithelial ovarian cancer, 15 patients with borderline epithelial ovarian tumors, 15 patients with epithelial benign tumors and 11 patients with normal ovarian tissues. RESULTS: The positivity and relative contents of KiSS-1 mRNA in patients with epithelial ovarian cancer (68%, 0.82 +/- 0.09) and borderline epithelial ovarian tumors (60%, 0.80 +/- 0.10) were all higher than in patients with epithelial benign tumor (20%, 0.65 +/- 0.10) and normal ovarian tissues (18%, 0.66 +/- 0.06; P < 0.05). The positivity and relative contents of KiSS-1 mRNA in patients with epithelial ovarian cancer correlated with their clinical stage and lymph node metastasis (P < 0.05). There was no difference in the positivity and relative contents of GPR54 mRNA between patients with epithelial ovarian cancer (70%, 0.79 +/- 0.07), borderline epithelial ovarian tumor (67%, 0.76 +/- 0.10), benign epithelial ovarian tumor (60%, 0.73 +/- 0.07) and normal ovarian tissues (45%, 0.78 +/- 0.08), respectively (all P > 0.05). The positivity and relative contents of GPR54 mRNA in patients with epithelial ovarian cancer did not correlate with their clinical stage, histology grade, lymph node metastasis and production of ascites (P > 0.05). CONCLUSION: KiSS-1 and GPR54 may play an important role in inhibiting the invasion and metastasis of early epithelial ovarian cancer.