目的 分析长链非编码RNA LINC02038的表达与子宫内膜癌发生、发展的关联性,并探讨其潜在的生物学调控机制,为子宫内膜癌的精准诊治提供科学线索。方法 采用荧光定量PCR技术检测LINC02038 在2019年—2020年期间于我院收集的42例子宫内膜癌标本及相应癌旁正常组织中的表达差异。构建LINC02038过表达载体并转染子宫内膜癌Ishikawa 细胞系,通过CCK-8、Transwell等功能实验验证其对肿瘤细胞增殖、侵袭能力的影响。利用TCGA公共数据库分析LINC02038与子宫内膜癌预后的相关性,并通过基因本体论（GO）、京都基因组百科全书（KEGG）及基因集富集分析（GSEA）等生物信息学方法预测其潜在的下游调控机制。结果 LINC02038在子宫内膜癌组织中的表达高于癌旁正常组织（P<0.001）。过表达LINC02038可促进子宫内膜癌细胞Ishikawa的增殖和迁移。生物信息学分析提示LINC02038可能通过调控细胞分化、激素分泌、细胞外基质重塑等过程,激活NF-κB、细胞外基质受体等信号通路影响子宫内膜癌的发生。结论 LINC02038的异常表达与子宫内膜癌的发生、发展相关联,可作为评估子宫内膜癌发病风险的候选生物标志物。

Objective To analyze the expression of long non-coding RNA LINC02038 and its relationship with the occurrence and development of endometrial carcinoma（EC）,explore its potential biological mechanisms,and provide potential biomarkers for targeted therapy of EC．Methods Quantitative real-time PCR was used to detect the expression levels of LINC02038 in 42 EC tissues and their adjacent tissues．The LINC02038 overexpressin vector was constructed and transfected into EC Ishikawa cells．CCK-8,Transwell migration and invasion assays were performed to examine the effects of LINC02038 overexpression on cancer cell proliferation,migration and invasion．Public TCGA data were analyzed to investigate the associations between LINC02038 and EC pathogenesis and prognosis．GO,KEGG and GSEA enrichment analyses were conducted to elucidate the potential biological mechanisms of LINC02038．Results LINC02038 expression was significantly upregulated in EC tissues compared to adjacent non-tumor tissues（P<0.001）．Overexpression of LINC02038 markedly promoted the proliferation and migration of Ishikawa cells．Bioinformatics analysis suggested that LINC02038 may participate in regulating cell differentiation,hormone secretion,extracellular matrix remodeling and other processes,as well as activating NF-κB,extracellular matrix receptor and other signaling pathways involved in endometrial carcinogenesis．Conclusions The aberrant expression of LINC02038 is associated with EC occurrence and may serve as a potential biomarker for assessing the risk of this cancer．

目的 探讨微RNA-29b（miR-29b）对子宫内膜癌细胞增殖、迁移和侵袭的影响。方法 子宫内膜癌HEC-1-B细胞分为miR-29b模拟物组（MM组）、miR-29b阻遏物组（MR组）和阴性对照物组（MNC组）,分别转染miR-29b拟似物、miR-29b阻遏物和miR-29b阴性对照物,每组设置6个复孔。以实时定量逆转录PCR检测miR-29b表达,以水溶性四氮唑（WST-1）检测miR-29b对HEC-1-B子宫内膜癌细胞增殖的影响,以Transwell小室检测HEC-1-B子宫内膜癌细胞迁移和侵袭的影响,以Western blot法检测磷酸酶张力蛋白同源物（PTEN）-蛋白激酶 B（AKT）通路蛋白表达水平。结果 MNC组、MM组、MR组miR-29b相对表达量分别为（2 032.1±873.4）、（19 272.8±2 087.9）、（472.7±105.6）,组间比较差异有统计学意义（P<0.05）。MM组0、3、5、7 d时OD值分别为（0.32±0.06）、（0.53±0.08）、（1.13±0.12）和（1.92±0.14）,MNC组0、3、5、7 d时OD值分别为（0.34±0.09）、（0.71±0.08）、（1.67±0.21）和（3.49±0.24）,MR组0、3、5、7 d时OD值分别为（0.38±0.09）、（0.84±0.18）、（2.43±0.24）和（5.67±0.15）,3组0 d时OD值比较差异无统计学意义（P=0.216）,三组3 d、5 d、7 d时OD值比较差异存在统计学意义（P<0.001）。MNC组、MM组和MR组迁移细胞数分别为（403.9±23.8）（102.6±15.7）和（685.7±46.8）个,上述3组侵袭细胞数分别为（82.1±12.7）（38.2±10.6）和（124.6±21.6）个,MM组和MNC组上述指标比较差异均有统计学意义（P<0.05）,MR组和MM组上述指标比较差异均有统计学意义（P<0.05）。MNC组、MM组、MR组PTEN蛋白相对表达量分别为（0.25±0.08）、（0.69±0.11）、（0.11±0.05）,上述3组p-AKT蛋白相对表达量分别为（0.58±0.10）、（0.13±0.06）和（0.79±0.08）,上述3组AKT蛋白相对表达量分别为（0.38±0.09）、（0.37±0.11）和（0.37±0.08）,MM组与MNC组PTEN、p-AKT水平比较差异有统计学意义（P<0.05）,AKT水平比较差异无统计学意义（P>0.05）;MR组与MNC组、MM组PTEN、p-AKT水平比较差异有统计学意义（P<0.05）,AKT水平比较差异无统计学意义（P>0.05）。结论 过表达miR-29b对子宫内膜癌细胞增殖、迁移和侵袭具有抑制作用,靶向PTEN-AKT可能是其重要作用途径。

Objective To investigate the effects of microRNA-29b on proliferation,migration and invasion of endometrial cancer cells．Methods The endometrial cancer HEC-1-B cells were divided into micro29b mimetic group（MM group）,micro29b repressor group（MR group）and negative control group（MNC group）,and the micro29b mimetic,micro29b repressor and micro29b negative control were transfected into each group,six compound holes with each group．The real-time quantitative reverse transcription polymerase chain reaction（RT-PCR）was used to detect the expression of mi29b,WST-1 was used to detect the effect of mi29b on the proliferation of HEC-1-B endometrial cancer cells,Transwell chamber was used to detect the migration and invasion of HEC-1-B endometrial cancer cells,and Western blot was used to detect the expression level of PTEN-AKT pathway protein．Results The relative expression levels of microRNA-29b in MNC group,MM group and MR group were（2 032.1±873.4）,（19 272.8±2 087.9）and（472.7±105.6）,respectively,and there were significant differences between groups（P<0.05）．OD values of MM group at 0 d,3 d,5 d and 7 d were（0.32±0.06）,（0.53±0.08）,（1.13±0.12）and（1.92±0.14）respectively．The OD values of MNC group at 0,3,5 and 7 days were（0.34±0.09）,（0.71±0.08）,（1.67±0.21）and（3.49±0.24）respectively．The OD values of MR group at 0 d,3 d,5 d and 7 d were（0.38±0.09）,（0.84±0.18）,（2.43±0.24）and（5.67±0.15）respectively．There was no significant difference in OD value between the three groups on day 0 （P=0.216）．There were significant differences in OD value between the three groups on day 3,day 5 and day 7（P<0.001）．The number of migrating cells in MNC group,MM group and MR group were（403.9±23.8）cells,（102.6±15.7）cells and（685.7±46.8）cells,respectively．The number of invasive cells in the above three groups were（82.1±12.7）cells,（38.2±10.6）cells and（124.6±21.6）cells．There were significant differences in the above indexes between MM group and MNC group（P<0.05）,also between MR group and MM group（P<0.05）．The relative expression levels of PTEN protein in MNC group,MM group and MR group were（0.25±0.08）,（0.69±0.11）and（0.11±0.05）．The relative expression levels of p-AKT protein in the above three groups were（0.58±0.10）,（0.13±0.06）and（0.79±0.08）．The relative expression levels of AKT protein in the above three groups were（0.38±0.09）,（0.37±0.11）and（0.37±0.08）,respectively．Compared with MNC group,the levels of PTEN and p-AKT in MM group had statistical significance（P<0.05）,but there was no statistical difference in AKT level（P>0.05）．Compared with MNC group and MM group,the levels of PTEN and p-AKT in MR group had statistical significance（P<0.05）,and there was no statistical difference in AKT level（P>0.05）．Conclusions Overexpression of microRNA-29b can inhibit the proliferation,migration and invasion of endometrial cancer cells,and targeting PTEN-AKT may be an important pathway．

目的 探讨子宫内膜癌构成及临床病理特征。方法 以南平市第一医院2020年1月—2022年6月期间收治的82例子宫内膜癌患者为研究对象,收集其临床资料,通过免疫组织化学染色法检测4种错配修复蛋白表达,并分析错配修复蛋白表达与临床病理特征的关系。结果 82例患者中,70例（85.37%）为子宫内膜样癌,病理组织学类型以G1级30例（42.86%）为主,其他类型较为少见。错配修复蛋白表达总缺失率为35.71%,其中MUTL同源物1（MLH1）单独缺失率为2.86%,错配修复蛋白2抗体（MSH2）为4.29%,错配修复蛋白6抗体（MSH6）为14.29%,肿瘤错配修复基因PMS2抗体（PMS2）为14.29%;错配修复表达缺失（dMMR）组患者年龄50岁以上、伴脉管侵犯和淋巴结转移、组织学G3级和FIGO分期Ⅲ期占比高于错配修复表达正常（pMMR）组患者（P<0.05）;MSH6蛋白表达缺失易发生在年龄50岁以上、有家族相关疾病史的患者（P<0.05）;PMS2蛋白表达缺失易发生在组织学G2级、FIGO分期Ⅲ期、妊娠1次及以上、脉管内癌栓和淋巴结转移的患者（P<0.05）。结论 子宫内膜癌错配修复蛋白表达与其部分临床病理特征存在密切关联,可为患者后续治疗提供有价值的指导。

Objective To investigate the composition and clinicopathological features of endometrial carcinoma．Methods A total of 82 cases of endometrial carcinoma patients admitted to the First Hospital of Nanping City from January 2020 to June 2022 were studied．Epidemiological data were collected,and the expression of 4 mismatch repair proteins were detected by immunohistochemical staining,and their relationship with clinicopathological features was analyzed．Results Among 82 patients,70 cases（85.37%）were endometrioid carcinoma,and 30 cases（42.86%）were mainly G1 grade,other types were rare．The total deletion rate of mismatch repair proteins expression was 35.71%,in which MLH1 alone was 2.86%,MSH2 was 4.29%,MSH6 was14.29% and PMS2 was14.29%．The proportions of dMMR patients over 50 years old,with vascular invasion and lymph node metastasis,G3 grade histology and FIGO stage Ⅲ were significantly higher than those of the pMMR group（P<0.05）．The loss of MSH6 protein expression was more likely to occur in patients over 50 years old with a family history of related diseases（P<0.05）．The deletion of PMS2 protein expression was more likely to occur in patients with histological G2 grade,FIGO stage III,pregnancy of once or more and intravascular cancer thrombin and lymph node metastasis（P<0.05）．Conclusions The expression of mismatch repair proteins in endometrial carcinoma is closely related to some clinicopathological features,which provides valuable guidance for follow-up treatment．

目的 探讨将宫腔镜电切手术与高效孕激素治疗相联合,治疗青年女性子宫内膜癌的临床效果以及对患者生育功能的影响。方法 选取2018年5月—2020年5月我院收治的70例青年子宫内膜癌患者作为本次研究对象,根据患者入院时间单双号将患者分为对照组(n=35)和实验组(n=35),对照组患者应用高效孕激素治疗,实验组患者则在对照组的基础上联合应用宫腔镜电切术进行治疗。比较两组患者的临床疗效、再次妊娠的成功率,及血清CA125水平变化情况。结果 研究组患者在治疗后3个月的治疗有效率为94.2%,高于对照组患者治疗有效率74.2%,差异具有统计学意义(P<0.05);研究组在治疗后一年内成功受孕率91.4%高于对照组51.4%,差异具有统计学意义(P<0.05);治疗后,研究组血清CA125水平低于对照组(P<0.05)。结论 将宫腔镜电切术与高效孕激素治疗方式相结合,对治疗青年子宫内膜癌患者效果显著,能够保留患者生育功能的同时,降低血清CA125水平。

目的 探究叶酸对子宫内膜癌作用的靶基因。方法 通过转录组测序筛选叶酸作用下子宫内膜癌细胞中的差异基因,生存分析寻找对子宫内膜癌具有生存意义的差异基因,qPCR及western blot检测其在叶酸作用下的表达。结果 转录组测序发现36个差异基因,生存分析发现FMN1,TRIB3,INHBE及NRBP2的表达对子宫内膜癌具有生存意义,qPCR及western blot验证叶酸作用下NRBP2在子宫内膜癌细胞中的表达下调。结论 叶酸下调子宫内膜癌中NRBP2基因的表达,NRBP2可能是叶酸对子宫内膜癌作用的靶标。

Objective To explore the target genes of folic acid on endometrial carcinoma. Methods The differential genes in endometrial cancer cells treated with folic acid were screened by transcriptome sequencing. Survival analysis was used to find the differential genes with survival significance. QPCR and western blot were used to detect their expression under the action of folic acid. Results 36 differential genes were found by transcriptional sequencing. Survival analysis showed that the expression of FMN1,TRIB3,INHBE and NRBP2 had survival significance in endometrial carcinoma. QPCR and western blot confirmed that the expression of NRBP2 in endometrial cancer cells was down-regulated by folic acid. Conclusion Folic acid down-regulates the expression of NRBP2 gene in endometrial carcinoma, and NRBP2 may be the target of the effect of folic acid on endometrial carcinoma.