Daidzein affects proliferation and apoptosis in non-small cell lung cancer cells:role of p53 signaling pathway北大核心CSCD

Aim To investigate the effects of daidzein（DD） on the proliferation and apoptosis of non-small cell lung cancer cells,with a focus on the possible role of the p53 signaling pathway in this regard. Methods CCK-8 method and flow cytometry were used to detect the effects of soy isoflavone crude extract and DD on the viability and apoptosis of HELF and H1299 cells. Gene microarray was used to detect the changes in gene expression after treatment of H1299 cells with DD. GSEA and differential analysis were used to screen the major pathways and key genes. RT-qPCR and Western blot were performed to verify the differences in mRNA and protein expression of key genes（p53 and CASP9） in the major pathways. After p53 inhibitor Pifithrin-α inhibited the expression of p53,the effect of DD on p53 mRNA and protein expression levels was examined,and the proliferative effect on H1299 cells was observed. Results Soy isoflavone crude extract and DD promoted proliferation and inhibited apoptosis of normal lung cells and inhibited proliferation and promoted apoptosis of lung cancer cells. p53 signaling pathway was significantly enriched in the DD-treated group（NES=1.78,P=0.000）,and the expressions of p53 and CASP9 genes were found to be significantly up-regulated in the treated group. Compared with the control group,mRNA expression of CASP9 and p53 significantly increased in both HELF and H1299 cells treated with DD（P<0.05）,and p53 protein expression also increased in HELF cells（P<0.05）. After inhibition of p53 expression,DD significantly increased the mRNA expression of p53 in H1299 and HELF cells（P<0.05） and also markedly increased the expression of p53 protein in H1299 cells（P<0.05）,and it was observed that DD inhibited the proliferation of lung cancer cells. Conclusions DD inhibits the proliferation and promotes the apoptosis of lung cancer H1299 cells,and the mechanism mainly involves the p53 signaling pathway. © 2023 Publication Centre of Anhui Medical University. All rights reserved.     

血小板相关参数对评估炎症性肠病活动性的临床意义

目的探讨血小板相关参数评估炎症性肠病(IBD)活动性的价值。方法回顾性收集2010年1月至2019年6月九江学院附属医院消化内科住院的溃疡性结肠炎(UC)及克罗恩病(CD)患者共206例,另选取于九江学院附属医院健康体检50例健康人员作为对照;收集研究对象临床资料,并依据病史、Myao活动指数、蒙特利尔分级及克罗恩病活动指数(CDAI)对患者进行分组及疾病严重程度分级。收集患者首次诊断时的血常规检测指标。结果IBD患者的血小板相关参数除P-LCR外与对照组比较均有明显差异(P<0.05);CD患者PCT及PLT显著高于UC(P分别0.007、<0.001);IBD活动期患者血小板参数与对照组存在显著差异(P<0.05);且UC患者病情与血小板参数存在相关性,重度患者PLT高于轻度患者(P<0.05)、MPV低于轻度患者(P=0.001);将MPV、PDW、P-LCR、PCT、PLT联合诊断IBD的活动性,得到AUC=0.857,95%CI 0.803~0.912,P<0.05。结论MPV、PDW在IBD活动期降低;PLT、PCT则增高;血小板相关参数联合诊断可较好反映IBD活动性。     

豆类食品摄入及EGFR、ESR2基因多态性在非吸烟女性肺癌发生中的作用

目的研究豆类食品的摄入及EGFR、ESR2基因多态性与非吸烟女性肺癌发病的关系。方法调查收集非吸烟女性肺癌患者和对照,分析豆类食品与女性肺癌发病风险的关系。对非吸烟女性肺癌患者和对照组进行SNPS检测,分析EGFR和ESR2基因多态性与非吸烟女性肺癌的关联关系,并对大豆异黄酮的摄入、EGFR和ESR2基因多态性与非吸烟女性肺癌两两之间的交互作用进行分析。结果分析发现豆类食品的摄入能够降低非吸烟女性肺癌的发病风险(P=0.015),随着膳食豆类食品摄入量的增加,女性肺癌的风险效应值减少。经Bonferroni校正后,发现EGFR基因的rs11534100位点与非吸烟女性肺癌的发生之间存在关联。未发现豆类食品的摄入与EGFR、ESR2的SNPs在非吸烟女性肺癌发生的交互作用。结论豆类食品能降低女性非吸烟肺癌的发病风险,增加膳食大豆异黄酮的摄入量能减少女性肺癌的风险效应值。EGFR、ESR2基因多态性与非吸烟女性肺癌的发病存在关联。