目的探讨长链非编码RNA LINC00641(long noncoding RNA LINC00641,LINC00641)在卵巢浆液性癌中的表达,探讨其对细胞增殖的调控作用。方法应用GEPIA数据库预测LINC00641在卵巢癌中表达的趋势。选择57例卵巢浆液性癌组织作为观察组,选择5...目的探讨长链非编码RNA LINC00641(long noncoding RNA LINC00641,LINC00641)在卵巢浆液性癌中的表达,探讨其对细胞增殖的调控作用。方法应用GEPIA数据库预测LINC00641在卵巢癌中表达的趋势。选择57例卵巢浆液性癌组织作为观察组,选择57卵巢浆液性囊腺瘤组织作为对照组,应用实时荧光定量PCR(quantitative real time PCR,qRT-PCR)法检测LINC00641的表达,应用免疫组化法检测Ki67的表达。选择人卵巢浆液性癌SKOV3细胞系和人卵巢表面上皮细胞HOSEpiC细胞系,应用qRT-PCR检测LINC00641的表达,转染过表达LINC00641质粒建立SKOV3细胞的OE-LINC00641组,并设立未行任何转染的空白对照组(NC)。应用CCK-8检测细胞增殖活性。结果GEPIA数据库显示LINC00641在卵巢癌中的表达有下调趋势(P<0.05)。组织学实验显示卵巢浆液性癌组织中LINC00641的表达量(1.325±0.115)明显低于对照组(1.665±0.147)(t=6.24,P<0.05),LINC00641在不同病变分级(1.31±0.11 vs 1.43±0.09)和肿瘤最大径(1.25±0.11 vs 1.36±0.10)的比较中差异有统计学意义(P<0.05),卵巢浆液性癌中LINC00641和Ki67增殖指数具有负相关性(P<0.05)。体外细胞培养实验显示SKOV3中LINC00641的表达量(1.33±0.13)明显低于HOSEpiC(1.89±0.24)(P<0.05)。OE-LINC00641组细胞增殖活性明显低于NC组(P<0.05)。结论LINC00641在卵巢浆液性癌中低表达,对肿瘤细胞增殖有抑制作用。展开更多
Introduction: Large cell neuroendocrine carcinoma (LCNEC) or non small cell neuroendocrine carcinoma the ovary is a rare entity and is frequently associated with ovarian surface epithelial tumors. However, its associa...Introduction: Large cell neuroendocrine carcinoma (LCNEC) or non small cell neuroendocrine carcinoma the ovary is a rare entity and is frequently associated with ovarian surface epithelial tumors. However, its association with serous carcinoma is rarer, in our knowledge tree cases has been described in international literature and the first case in Moroccan literature. Case Report: A 54-year-old woman presented with a pelvic mass measuring 15 cm in diameter. She underwent an exploratory laparotomy with resection of the pelvic mass. Diffuse and nodular intra-abdominal disseminations were observed. Immunohistochemistry stain confirmed the diagnosis of large cell neuroendocrine carcinoma with serous carcinoma. The patient received three courses of carboplatin and paclitaxel and she's still alivewith a decline of 6 months. Its clinicopathologic association is discussed and the literature is reviewed. Conclusion: In summary, ovarian LCNEC is an aggressive tumor with a tendency to present at advanced stage and cause death within a mean of 17 months after diagnosis;however, some patients, particularly those with stage I disease and/or those who have received platinum-based therapy, may have a more favorable prognosis.展开更多
目的:检测卵巢浆液性癌中微小RNA-496(microRNA-496,miR-496)的表达,关注其表达意义及与同源异型蛋白SIX1(homologous heteroprotein SIX1,SIX1)的靶向关系。方法:选择75例卵巢浆液性癌作为观察组,选择75例卵巢浆液性囊腺瘤作为对照组,...目的:检测卵巢浆液性癌中微小RNA-496(microRNA-496,miR-496)的表达,关注其表达意义及与同源异型蛋白SIX1(homologous heteroprotein SIX1,SIX1)的靶向关系。方法:选择75例卵巢浆液性癌作为观察组,选择75例卵巢浆液性囊腺瘤作为对照组,应用实时荧光定量PCR法检测2组中miR-496的表达,应用免疫组化法检测观察组中增殖细胞核抗原(proliferating cell nuclear antigen,PCNA)和B细胞淋巴瘤-2相关X蛋白(Bcl-2 associated X protein,BAX)的表达,应用Western blot检测观察组中SIX1的表达。选择人卵巢浆液性癌细胞系SKOV-3,设置空白对照组、miR-496转染组、miR-496和SIX1共转染组,采用双荧光素酶基因实验验证miR-496与靶基因SIX1的关系。结果:miR-496在观察组的表达量明显低于对照组(1.52±0.36 vs.2.03±0.25,t=7.56,P=0.001),miR-496的表达在不同肿瘤最大径(1.65±0.36 vs. 1.42±0.33,t=5.32,P=0.012)、病理分级(1.64±0.35 vs. 1.43±0.40,t=5.11,P=0.010)、有无脉管累犯(1.60±0.44 vs. 1.35±0.43,t=5.11,P=0.011)、是否双侧发生(1.61±0.36 vs.1.40±0.32,t=5.11,P=0.010)、有无淋巴结转移(1.62±0.42 vs. 1.35±0.41,t=5.66,P=0.008)和不同TNM分期(1.70±0.37 vs.1.42±0.39,t=5.65,P=0.009)的分组中有统计学差异。miR-496与生存时间有关(χ2=4.13,P=0.010),miR-496与PCNA(r=-0.54,P=0.0186)、miR-496与SIX1(r=-0.58,P=0.0130)均具有负相关性,miR-496与BAX(r=0.52,P=0.0110)具有正相关性。双荧光素酶基因实验显示,miR-496能引起转染pGL3-SIX1-WT的细胞系中荧光素酶活性明显降低。结论:卵巢浆液性癌中miR-496的表达下降,是促进肿瘤形成和进展的重要分子因素,检测miR-496对判断预后可能有一定价值。miR-496可能通过负向调节靶基因SIX1调控肿瘤细胞的增殖和凋亡。展开更多
文摘目的探讨长链非编码RNA LINC00641(long noncoding RNA LINC00641,LINC00641)在卵巢浆液性癌中的表达,探讨其对细胞增殖的调控作用。方法应用GEPIA数据库预测LINC00641在卵巢癌中表达的趋势。选择57例卵巢浆液性癌组织作为观察组,选择57卵巢浆液性囊腺瘤组织作为对照组,应用实时荧光定量PCR(quantitative real time PCR,qRT-PCR)法检测LINC00641的表达,应用免疫组化法检测Ki67的表达。选择人卵巢浆液性癌SKOV3细胞系和人卵巢表面上皮细胞HOSEpiC细胞系,应用qRT-PCR检测LINC00641的表达,转染过表达LINC00641质粒建立SKOV3细胞的OE-LINC00641组,并设立未行任何转染的空白对照组(NC)。应用CCK-8检测细胞增殖活性。结果GEPIA数据库显示LINC00641在卵巢癌中的表达有下调趋势(P<0.05)。组织学实验显示卵巢浆液性癌组织中LINC00641的表达量(1.325±0.115)明显低于对照组(1.665±0.147)(t=6.24,P<0.05),LINC00641在不同病变分级(1.31±0.11 vs 1.43±0.09)和肿瘤最大径(1.25±0.11 vs 1.36±0.10)的比较中差异有统计学意义(P<0.05),卵巢浆液性癌中LINC00641和Ki67增殖指数具有负相关性(P<0.05)。体外细胞培养实验显示SKOV3中LINC00641的表达量(1.33±0.13)明显低于HOSEpiC(1.89±0.24)(P<0.05)。OE-LINC00641组细胞增殖活性明显低于NC组(P<0.05)。结论LINC00641在卵巢浆液性癌中低表达,对肿瘤细胞增殖有抑制作用。
文摘Introduction: Large cell neuroendocrine carcinoma (LCNEC) or non small cell neuroendocrine carcinoma the ovary is a rare entity and is frequently associated with ovarian surface epithelial tumors. However, its association with serous carcinoma is rarer, in our knowledge tree cases has been described in international literature and the first case in Moroccan literature. Case Report: A 54-year-old woman presented with a pelvic mass measuring 15 cm in diameter. She underwent an exploratory laparotomy with resection of the pelvic mass. Diffuse and nodular intra-abdominal disseminations were observed. Immunohistochemistry stain confirmed the diagnosis of large cell neuroendocrine carcinoma with serous carcinoma. The patient received three courses of carboplatin and paclitaxel and she's still alivewith a decline of 6 months. Its clinicopathologic association is discussed and the literature is reviewed. Conclusion: In summary, ovarian LCNEC is an aggressive tumor with a tendency to present at advanced stage and cause death within a mean of 17 months after diagnosis;however, some patients, particularly those with stage I disease and/or those who have received platinum-based therapy, may have a more favorable prognosis.
文摘目的:检测卵巢浆液性癌中微小RNA-496(microRNA-496,miR-496)的表达,关注其表达意义及与同源异型蛋白SIX1(homologous heteroprotein SIX1,SIX1)的靶向关系。方法:选择75例卵巢浆液性癌作为观察组,选择75例卵巢浆液性囊腺瘤作为对照组,应用实时荧光定量PCR法检测2组中miR-496的表达,应用免疫组化法检测观察组中增殖细胞核抗原(proliferating cell nuclear antigen,PCNA)和B细胞淋巴瘤-2相关X蛋白(Bcl-2 associated X protein,BAX)的表达,应用Western blot检测观察组中SIX1的表达。选择人卵巢浆液性癌细胞系SKOV-3,设置空白对照组、miR-496转染组、miR-496和SIX1共转染组,采用双荧光素酶基因实验验证miR-496与靶基因SIX1的关系。结果:miR-496在观察组的表达量明显低于对照组(1.52±0.36 vs.2.03±0.25,t=7.56,P=0.001),miR-496的表达在不同肿瘤最大径(1.65±0.36 vs. 1.42±0.33,t=5.32,P=0.012)、病理分级(1.64±0.35 vs. 1.43±0.40,t=5.11,P=0.010)、有无脉管累犯(1.60±0.44 vs. 1.35±0.43,t=5.11,P=0.011)、是否双侧发生(1.61±0.36 vs.1.40±0.32,t=5.11,P=0.010)、有无淋巴结转移(1.62±0.42 vs. 1.35±0.41,t=5.66,P=0.008)和不同TNM分期(1.70±0.37 vs.1.42±0.39,t=5.65,P=0.009)的分组中有统计学差异。miR-496与生存时间有关(χ2=4.13,P=0.010),miR-496与PCNA(r=-0.54,P=0.0186)、miR-496与SIX1(r=-0.58,P=0.0130)均具有负相关性,miR-496与BAX(r=0.52,P=0.0110)具有正相关性。双荧光素酶基因实验显示,miR-496能引起转染pGL3-SIX1-WT的细胞系中荧光素酶活性明显降低。结论:卵巢浆液性癌中miR-496的表达下降,是促进肿瘤形成和进展的重要分子因素,检测miR-496对判断预后可能有一定价值。miR-496可能通过负向调节靶基因SIX1调控肿瘤细胞的增殖和凋亡。
