BACKGROUND In metastatic colorectal cancer(mCRC),the anti-vascular endothelial growth factor drug bevacizumab(BVZ)plus chemotherapy significantly improves progression-free survival compared to chemotherapy(CT)alone.Th...BACKGROUND In metastatic colorectal cancer(mCRC),the anti-vascular endothelial growth factor drug bevacizumab(BVZ)plus chemotherapy significantly improves progression-free survival compared to chemotherapy(CT)alone.This benefit is not,however,observed in all patients.While increased chemokine CXCL5 gene expression promoting angiogenesis has been proposed as a prognostic mCRC biomarker,few studies have examined its relationship with drug efficacy.This study sought to analyze tumor CXCL5 gene expression in six patients with different efficacy of BVZ-containing CT in terms of the tumor response to treatment.CASE SUMMARY We report six cases of stage IV KRAS-mutated mCRC.Patients were given first line treatment with BVZ-containing chemotherapy in University Hospital of Fuenlabrada.The six patients differed in terms of primary tumor location(right/left side),tumor burden(mostly hepatic and peritoneal disease)and clinical disease course.Before treatment onset,total RNA was isolated from paraffinated tumor biopsy specimens and CXCL5 gene expression quantified through conventional RT-qPCR procedures.Our main finding was that CXCL5 expression levels were several times higher in three patients with lower progression free survival(under 6 mo)from the start of treatment.CONCLUSION A higher expression of CXCL5 was observed in the three patients showing worse tumor response to treatment.展开更多
目的 分析CXC类趋化因子配体5(CXCl-5)、可溶性白细胞分化抗原14亚型(sCD14-ST)、胰岛素样生长因子-1(IGF-1)、胰岛素样生长因子-2(IGF-2)在急性细菌性脑膜炎患儿脑脊液中的表达及意义。方法 选取2020年7月-2021年7月湖州市中心医院收治...目的 分析CXC类趋化因子配体5(CXCl-5)、可溶性白细胞分化抗原14亚型(sCD14-ST)、胰岛素样生长因子-1(IGF-1)、胰岛素样生长因子-2(IGF-2)在急性细菌性脑膜炎患儿脑脊液中的表达及意义。方法 选取2020年7月-2021年7月湖州市中心医院收治的55例急性细菌性脑膜炎患儿为观察组,另选取同期在院进行健康体检的健康儿童45例为对照组。检测对照组血液及观察组血液、脑脊液中CXCl-5、sCD14-ST、IGF-1及IGF-2水平。分析CXCl-5、sCD14-ST、IGF-1及IGF-2在急性细菌性脑膜炎患儿脑脊液中表达及对急性细菌性脑膜炎的诊断价值。结果 与对照组相比,观察组血清、脑脊液中CXCl-5(36.88±11.23 vs. 50.27±5.38 vs. 67.55±20.37)ng/L、sCD14-ST(2.86±0.23 vs. 3.32±0.33 vs. 4.01±1.35)pg/ml、IGF-1(70.96±20.78 vs. 101.69±31.77 vs. 122.36±39.21)mg/L、IGF-2(65.37±18.65 vs. 102.33±27.88 vs. 121.58±37.69)mg/L水平较高(P<0.05);与观察组患儿血清相比,患儿脑脊液中CXCl-5(50.27±5.38 vs. 67.55±20.37)ng/L、sCD14-ST(3.32±0.33 vs. 4.01±1.35)pg/ml、IGF-1(101.69±31.77 vs. 122.36±39.21)mg/L、IGF-2(102.33±27.88 vs. 121.58±37.69)mg/L水平较高(P<0.05)。logistic回归分析显示CXCl-5、sCD14-ST、IGF-1及IGF-2水平升高是急性细菌性脑膜炎发生的影响因素。ROC曲线显示,4项联合对急性细菌性脑膜炎的诊断价值高于CXCl-5、sCD14-ST、IGF-1及IGF-2单项诊断(AUC=0.843、0.747、0.702、0.660、0.765),差异有统计学意义(P<0.05)。结论 急性细菌性脑膜炎患儿脑脊液中CXCl-5、sCD14-ST、IGF-1及IGF-2表达较高,CXCl-5、sCD14-ST、IGF-1及IGF-2联合对急性细菌性脑膜炎的诊断价值较高。展开更多
基金Supported by University Hospital of Fuenlabrada,Universidad Europea de Madrid(project numbers 2015/UEM12 and2016/UEM13)Fundación de la Universidad Europea(project numbers FGUE001804 and FGUE001805).
文摘BACKGROUND In metastatic colorectal cancer(mCRC),the anti-vascular endothelial growth factor drug bevacizumab(BVZ)plus chemotherapy significantly improves progression-free survival compared to chemotherapy(CT)alone.This benefit is not,however,observed in all patients.While increased chemokine CXCL5 gene expression promoting angiogenesis has been proposed as a prognostic mCRC biomarker,few studies have examined its relationship with drug efficacy.This study sought to analyze tumor CXCL5 gene expression in six patients with different efficacy of BVZ-containing CT in terms of the tumor response to treatment.CASE SUMMARY We report six cases of stage IV KRAS-mutated mCRC.Patients were given first line treatment with BVZ-containing chemotherapy in University Hospital of Fuenlabrada.The six patients differed in terms of primary tumor location(right/left side),tumor burden(mostly hepatic and peritoneal disease)and clinical disease course.Before treatment onset,total RNA was isolated from paraffinated tumor biopsy specimens and CXCL5 gene expression quantified through conventional RT-qPCR procedures.Our main finding was that CXCL5 expression levels were several times higher in three patients with lower progression free survival(under 6 mo)from the start of treatment.CONCLUSION A higher expression of CXCL5 was observed in the three patients showing worse tumor response to treatment.
文摘目的 分析CXC类趋化因子配体5(CXCl-5)、可溶性白细胞分化抗原14亚型(sCD14-ST)、胰岛素样生长因子-1(IGF-1)、胰岛素样生长因子-2(IGF-2)在急性细菌性脑膜炎患儿脑脊液中的表达及意义。方法 选取2020年7月-2021年7月湖州市中心医院收治的55例急性细菌性脑膜炎患儿为观察组,另选取同期在院进行健康体检的健康儿童45例为对照组。检测对照组血液及观察组血液、脑脊液中CXCl-5、sCD14-ST、IGF-1及IGF-2水平。分析CXCl-5、sCD14-ST、IGF-1及IGF-2在急性细菌性脑膜炎患儿脑脊液中表达及对急性细菌性脑膜炎的诊断价值。结果 与对照组相比,观察组血清、脑脊液中CXCl-5(36.88±11.23 vs. 50.27±5.38 vs. 67.55±20.37)ng/L、sCD14-ST(2.86±0.23 vs. 3.32±0.33 vs. 4.01±1.35)pg/ml、IGF-1(70.96±20.78 vs. 101.69±31.77 vs. 122.36±39.21)mg/L、IGF-2(65.37±18.65 vs. 102.33±27.88 vs. 121.58±37.69)mg/L水平较高(P<0.05);与观察组患儿血清相比,患儿脑脊液中CXCl-5(50.27±5.38 vs. 67.55±20.37)ng/L、sCD14-ST(3.32±0.33 vs. 4.01±1.35)pg/ml、IGF-1(101.69±31.77 vs. 122.36±39.21)mg/L、IGF-2(102.33±27.88 vs. 121.58±37.69)mg/L水平较高(P<0.05)。logistic回归分析显示CXCl-5、sCD14-ST、IGF-1及IGF-2水平升高是急性细菌性脑膜炎发生的影响因素。ROC曲线显示,4项联合对急性细菌性脑膜炎的诊断价值高于CXCl-5、sCD14-ST、IGF-1及IGF-2单项诊断(AUC=0.843、0.747、0.702、0.660、0.765),差异有统计学意义(P<0.05)。结论 急性细菌性脑膜炎患儿脑脊液中CXCl-5、sCD14-ST、IGF-1及IGF-2表达较高,CXCl-5、sCD14-ST、IGF-1及IGF-2联合对急性细菌性脑膜炎的诊断价值较高。
