目的探讨人胃癌组织及胃癌细胞系中细胞因子信号转导抑制因子3(suppressors of cytokine signaling-3,SOCS-3)的表达。方法应用RT-PCR法测定10例人正常胃组织、10例人胃癌组织及人胃癌细胞系SWWC中SOCS-3的表达。结果与正常胃组织相比较...目的探讨人胃癌组织及胃癌细胞系中细胞因子信号转导抑制因子3(suppressors of cytokine signaling-3,SOCS-3)的表达。方法应用RT-PCR法测定10例人正常胃组织、10例人胃癌组织及人胃癌细胞系SWWC中SOCS-3的表达。结果与正常胃组织相比较,本研究中所测定的人胃癌组织(P<0.05)及人胃癌细胞系SWWC(P<0.001)SOCS-3 mRNA的表达呈降低趋势。结论在人胃癌的发生、发展过程中SOCS-3基因发生显著变化。展开更多
Accurate preoperative prediction of lymph node metastasis(LNM)in esophageal cancer(EC)patients is of crucial clinical significance for treatment planning and prognosis.AIM To develop a clinical radiomics nomogram that...Accurate preoperative prediction of lymph node metastasis(LNM)in esophageal cancer(EC)patients is of crucial clinical significance for treatment planning and prognosis.AIM To develop a clinical radiomics nomogram that can predict the preoperative lymph node(LN)status in EC patients.METHODS A total of 32 EC patients confirmed by clinical pathology(who underwent surgical treatment)were included.Real-time fluorescent quantitative reverse transcription-polymerase chain reaction was used to detect the expression of B7-H3 mRNA in EC tissue obtained during preoperative gastroscopy,and its correlation with LNM was analyzed.Radiomics features were extracted from multi-modal magnetic resonance imaging of EC using Pyradiomics in Python.Feature extraction,data dimensionality reduction,and feature selection were performed using XGBoost model and leave-one-out cross-validation.Multivariable logistic regression analysis was used to establish the prediction model,which included radiomics features,LN status from computed tomography(CT)reports,and B7-H3 mRNA expression,represented by a radiomics nomogram.Receiver operating characteristic area under the curve(AUC)and decision curve analysis(DCA)were used to evaluate the predictive performance and clinical application value of the model.RESULTS The relative expression of B7-H3 mRNA in EC patients with LNM was higher than in those without metastasis,and the difference was statistically significant(P<0.05).The AUC value in the receiver operating characteristic(ROC)curve was 0.718(95%CI:0.528-0.907),with a sensitivity of 0.733 and specificity of 0.706,indicating good diagnostic performance.The individualized clinical prediction nomogram included radiomics features,LN status from CT reports,and B7-H3 mRNA expression.The ROC curve demonstrated good diagnostic value,with an AUC value of 0.765(95%CI:0.598-0.931),sensitivity of 0.800,and specificity of 0.706.DCA indicated the practical value of the radiomics nomogram in clinical practice.CONCLUSION This study developed a radiomics nomogram that includes radiomics features,LN status from CT reports,and B7-H3 mRNA expression,enabling convenient preoperative individualized prediction of LNM in EC patients.展开更多
Background:Apolipoprotein B mRNA editing catalytic polypeptide(APOBEC),an endogenous mutator,induces DNA damage and activates the ataxia telangiectasia and Rad3-related(ATR)-checkpoint kinase 1(Chk1)pathway.Although c...Background:Apolipoprotein B mRNA editing catalytic polypeptide(APOBEC),an endogenous mutator,induces DNA damage and activates the ataxia telangiectasia and Rad3-related(ATR)-checkpoint kinase 1(Chk1)pathway.Although cisplatin-based therapy is the mainstay for muscle-invasive bladder cancer(MIBC),it has a poor survival rate.Therefore,this study aimed to evaluate the efficacy of an ATR inhibitor combined with cisplatin in the treatment of APOBEC catalytic subunit 3B(APOBEC3B)expressing MIBC.Methods:Immunohistochemical staining was performed to analyze an association between APOBEC3B and ATR in patients with MIBC.The APOBEC3B expression in MIBC cell lines was assessed using real-time polymerase chain reaction and western blot analysis.Western blot analysis was performed to confirm differences in phosphorylated Chk1(pChk1)expression according to the APOBEC3B expression.Cell viability and apoptosis analyses were performed to examine the anti-tumor activity of ATR inhibitors combined with cisplatin.Results:There was a significant association between APOBEC3B and ATR expression in the tumor tissues obtained from patients with MIBC.Cells with higher APOBEC3B expression showed higher pChk1 expression than cells expressing low APOBEC3B levels.Combination treatment of ATR inhibitor and cisplatin inhibited cell growth in MIBC cells with a higher APOBEC3B expression.Compared to cisplatin single treatment,combination treatment induced more apoptotic cell death in the cells with higher APOBEC3B expression.Conclusion:Our study shows that APOBEC3B’s higher expression status can enhance the sensitivity of MIBC to cisplatin upon ATR inhibition.This result provides new insight into appropriate patient selection for the effective application of ATR inhibitors in MIBC.展开更多
目的:观察百令胶囊联合达格列净治疗糖尿病肾病疗效及对Caspase-1mRNA、NLRP3炎症小体水平的影响。方法:采用随机数字表法将80例糖尿病肾病患者分成观察组和对照组。对照组予达格列净治疗,观察组同时联合百令胶囊治疗。经连续治疗3个月...目的:观察百令胶囊联合达格列净治疗糖尿病肾病疗效及对Caspase-1mRNA、NLRP3炎症小体水平的影响。方法:采用随机数字表法将80例糖尿病肾病患者分成观察组和对照组。对照组予达格列净治疗,观察组同时联合百令胶囊治疗。经连续治疗3个月,比较两组治疗前后空腹血糖(FPG)、餐后2 h血糖(2 h PG)、糖化血红蛋白(HbA1c)、肾功能指标[肾小球滤过率(eGFR)、血肌酐(Scr)、24 h尿微量白蛋白]、NLRP3炎性小体、半胱氨酸蛋白酶1(Caspase-1)mRNA、炎性因子[肿瘤坏死因子(TNF-α)、白细胞介素-1β(IL-1β)、超敏C反应蛋白(hs-CRP)]水平变化,统计两组治疗总有效率,评价治疗安全性。结果:治疗后,两组FPG、2 h PG、HbA1c水平,Scr、eGFR、24 h尿微量白蛋白水平,Caspase-1mRNA、NLRP3炎症小体表达水平,TNF-α、IL-1β、hs-CRP水平均明显低于治疗前(P<0.05),且观察组治疗以上指标水平均低于对照组(P<0.05);观察组总有效率为92.5%,优于对照组(75.0%)(P<0.05);两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论:百令胶囊联合达格列净治疗糖尿病肾病疗效显著,能够有效控制血糖水平,减少24 h尿蛋白,改善患者肾功能,治疗机制可能与抑制炎症反应、降低NLRP3炎症小体水平有关。展开更多
文摘目的探讨人胃癌组织及胃癌细胞系中细胞因子信号转导抑制因子3(suppressors of cytokine signaling-3,SOCS-3)的表达。方法应用RT-PCR法测定10例人正常胃组织、10例人胃癌组织及人胃癌细胞系SWWC中SOCS-3的表达。结果与正常胃组织相比较,本研究中所测定的人胃癌组织(P<0.05)及人胃癌细胞系SWWC(P<0.001)SOCS-3 mRNA的表达呈降低趋势。结论在人胃癌的发生、发展过程中SOCS-3基因发生显著变化。
基金The Yancheng Key Research and Development Program(Social Development),No.YCBE202324。
文摘Accurate preoperative prediction of lymph node metastasis(LNM)in esophageal cancer(EC)patients is of crucial clinical significance for treatment planning and prognosis.AIM To develop a clinical radiomics nomogram that can predict the preoperative lymph node(LN)status in EC patients.METHODS A total of 32 EC patients confirmed by clinical pathology(who underwent surgical treatment)were included.Real-time fluorescent quantitative reverse transcription-polymerase chain reaction was used to detect the expression of B7-H3 mRNA in EC tissue obtained during preoperative gastroscopy,and its correlation with LNM was analyzed.Radiomics features were extracted from multi-modal magnetic resonance imaging of EC using Pyradiomics in Python.Feature extraction,data dimensionality reduction,and feature selection were performed using XGBoost model and leave-one-out cross-validation.Multivariable logistic regression analysis was used to establish the prediction model,which included radiomics features,LN status from computed tomography(CT)reports,and B7-H3 mRNA expression,represented by a radiomics nomogram.Receiver operating characteristic area under the curve(AUC)and decision curve analysis(DCA)were used to evaluate the predictive performance and clinical application value of the model.RESULTS The relative expression of B7-H3 mRNA in EC patients with LNM was higher than in those without metastasis,and the difference was statistically significant(P<0.05).The AUC value in the receiver operating characteristic(ROC)curve was 0.718(95%CI:0.528-0.907),with a sensitivity of 0.733 and specificity of 0.706,indicating good diagnostic performance.The individualized clinical prediction nomogram included radiomics features,LN status from CT reports,and B7-H3 mRNA expression.The ROC curve demonstrated good diagnostic value,with an AUC value of 0.765(95%CI:0.598-0.931),sensitivity of 0.800,and specificity of 0.706.DCA indicated the practical value of the radiomics nomogram in clinical practice.CONCLUSION This study developed a radiomics nomogram that includes radiomics features,LN status from CT reports,and B7-H3 mRNA expression,enabling convenient preoperative individualized prediction of LNM in EC patients.
基金supported by St.Vincent’s Hospital,the Research Institute of Medical Science(Grant Number:SVHR-2021-03).
文摘Background:Apolipoprotein B mRNA editing catalytic polypeptide(APOBEC),an endogenous mutator,induces DNA damage and activates the ataxia telangiectasia and Rad3-related(ATR)-checkpoint kinase 1(Chk1)pathway.Although cisplatin-based therapy is the mainstay for muscle-invasive bladder cancer(MIBC),it has a poor survival rate.Therefore,this study aimed to evaluate the efficacy of an ATR inhibitor combined with cisplatin in the treatment of APOBEC catalytic subunit 3B(APOBEC3B)expressing MIBC.Methods:Immunohistochemical staining was performed to analyze an association between APOBEC3B and ATR in patients with MIBC.The APOBEC3B expression in MIBC cell lines was assessed using real-time polymerase chain reaction and western blot analysis.Western blot analysis was performed to confirm differences in phosphorylated Chk1(pChk1)expression according to the APOBEC3B expression.Cell viability and apoptosis analyses were performed to examine the anti-tumor activity of ATR inhibitors combined with cisplatin.Results:There was a significant association between APOBEC3B and ATR expression in the tumor tissues obtained from patients with MIBC.Cells with higher APOBEC3B expression showed higher pChk1 expression than cells expressing low APOBEC3B levels.Combination treatment of ATR inhibitor and cisplatin inhibited cell growth in MIBC cells with a higher APOBEC3B expression.Compared to cisplatin single treatment,combination treatment induced more apoptotic cell death in the cells with higher APOBEC3B expression.Conclusion:Our study shows that APOBEC3B’s higher expression status can enhance the sensitivity of MIBC to cisplatin upon ATR inhibition.This result provides new insight into appropriate patient selection for the effective application of ATR inhibitors in MIBC.
文摘目的:观察百令胶囊联合达格列净治疗糖尿病肾病疗效及对Caspase-1mRNA、NLRP3炎症小体水平的影响。方法:采用随机数字表法将80例糖尿病肾病患者分成观察组和对照组。对照组予达格列净治疗,观察组同时联合百令胶囊治疗。经连续治疗3个月,比较两组治疗前后空腹血糖(FPG)、餐后2 h血糖(2 h PG)、糖化血红蛋白(HbA1c)、肾功能指标[肾小球滤过率(eGFR)、血肌酐(Scr)、24 h尿微量白蛋白]、NLRP3炎性小体、半胱氨酸蛋白酶1(Caspase-1)mRNA、炎性因子[肿瘤坏死因子(TNF-α)、白细胞介素-1β(IL-1β)、超敏C反应蛋白(hs-CRP)]水平变化,统计两组治疗总有效率,评价治疗安全性。结果:治疗后,两组FPG、2 h PG、HbA1c水平,Scr、eGFR、24 h尿微量白蛋白水平,Caspase-1mRNA、NLRP3炎症小体表达水平,TNF-α、IL-1β、hs-CRP水平均明显低于治疗前(P<0.05),且观察组治疗以上指标水平均低于对照组(P<0.05);观察组总有效率为92.5%,优于对照组(75.0%)(P<0.05);两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论:百令胶囊联合达格列净治疗糖尿病肾病疗效显著,能够有效控制血糖水平,减少24 h尿蛋白,改善患者肾功能,治疗机制可能与抑制炎症反应、降低NLRP3炎症小体水平有关。
