Background:Inhibitor of NF-κB kinase-interacting protein(IKIP)is known to promote proliferation of glioblastoma(GBM)cells,but how it affects migration and invasion by those cells is unclear.Methods:We compared levels...Background:Inhibitor of NF-κB kinase-interacting protein(IKIP)is known to promote proliferation of glioblastoma(GBM)cells,but how it affects migration and invasion by those cells is unclear.Methods:We compared levels of IKIP between glioma tissues and normal brain tissue in clinical samples and public databases.We examined the effects of IKIP overexpression and knockdown on the migration and invasion of GBM using transwell and wound healing assays,and we compared the transcriptomes under these different conditions to identify the molecular mechanisms involved.Results:Based on data from our clinical samples and from public databases,IKIP was overexpressed in GBM tumors,and its expression level correlated inversely with survival.IKIP overexpression in GBM cells inhibited migration and invasion in transwell and wound healing assays,whereas IKIP knockdown exerted the opposite effects.IKIP overexpression in GBM cells that were injected into mouse brain promoted tumor growth but inhibited tumor invasion of surrounding tissue.The effects of IKIP were associated with downregulation of THBS1 mRNA and concomitant inhibition of THBS1/FAK signaling.Conclusions:IKIP inhibits THBS1/FAK signaling to suppress migration and invasion of GBM cells.展开更多
Macromolecular crystallography beamline BL17U1 at the Shanghai Synchrotron Radiation Facility has been relocated,upgraded,and given a new ID(BL02U1).It now delivers X-rays in the energy range of 6–16 keV,with a focus...Macromolecular crystallography beamline BL17U1 at the Shanghai Synchrotron Radiation Facility has been relocated,upgraded,and given a new ID(BL02U1).It now delivers X-rays in the energy range of 6–16 keV,with a focused beam of 11.6μm×4.8μm and photon flux greater than 1012 phs/s.The high credibility and stability of the beam and good timing synchronization of the equipment significantly improve the experimental efficiency.Since June 2021,when it officially opened to users,over 4200 h of beamtime have been provided to over 200 research groups to collect data at the beamline.Its good performance and stable operation have led to the resolution of several structures based on data collected at the beamline.展开更多
目的分析超声心动图联合血清凝血酶敏感蛋白1(thrombospondin-1,TSP-1)、甲壳质酶蛋白40(chitinase protein 40,YKL-40)浓度检测对高血压性心脏病患者的诊断价值。方法选择2021年1月至2022年6月四川友谊医院收治的高血压性心脏病患者98...目的分析超声心动图联合血清凝血酶敏感蛋白1(thrombospondin-1,TSP-1)、甲壳质酶蛋白40(chitinase protein 40,YKL-40)浓度检测对高血压性心脏病患者的诊断价值。方法选择2021年1月至2022年6月四川友谊医院收治的高血压性心脏病患者98例(心脏病组)进行研究,患者入组均接受超声心动图检查。酶联免疫吸附测定法(enzyme-linked immunosorbent assay,ELISA)检测血清TSP-1、YKL-40浓度。Pearson法分析高血压性心脏病患者血清TSP-1、YKL-40浓度与超声心动图各项参数的相关性,采用受试者工作特征曲线(receiver operating characteristic curve,ROC)评估血清TSP-1、YKL-40浓度诊断高血压性心脏病的可靠性。结果与对照组相比,心脏病组患者的收缩压、舒张压、左心房前后直径(left atrial anteroposterior diameter,LAD)、左心室收缩末期内径(left ventricular end systolic diameter,LVESD)、左心房内径指数(left atrial inner diameter index,LADI)、室间隔舒张末期厚度(end-diastolic interventricular septum thickness,IVST)、左心室舒张末期内径(left ventricular end-diastolic diameter,LVEDD)、左心室后壁舒张末期厚度(left ventricular posterior wall end-diastolic thickness,LVPWT)、左心室舒张晚期峰值流速(diastolic advanced stage filling peak rate of flow,VA)值较高,二尖瓣血流舒张早期左心室充盈峰速(peak velocity of left ventricular filling during early diastole,VE)值、峰值速度比率(ratio of E velocity to A velocity,E/A)较低,差异有统计学意义(P<0.05)。与对照组相比,心脏病组患者血清TSP-1、YKL-40浓度较高,差异有统计学意义(P<0.05)。Pearson法分析显示,血清TSP-1、YKL-40浓度与LAD、LVESD、LADI、IVST、LVEDD、LVPWT、VA值均呈正相关(P<0.05),与VE值、E/A均呈负相关(P<0.05)。超声心动图评估患者发生高血压性心脏病的准确度为88.00%,血清TSP-1、YKL-40浓度对高血压性心脏病诊断的准确度为81.00%、82.50%。超声心动图联合血清TSP-1、YKL-40浓度对高血压性心脏病诊断的准确度为91.50%,其灵敏度为95.92%,特异度为87.25%。结论高血压性心脏病患者血清中TSP-1、YKL-40浓度升高,血清TSP-1、YKL-40浓度对高血压性心脏病有一定诊断价值,超声心动图联合血清TSP-1、YKL-40浓度可明显提高高血压性心脏病诊断的准确性。展开更多
基金supported by the National Natural Science Foundation of China(82002638)the National Natural Science Foundation of Sichuan Province(2023NSFSC0734).
文摘Background:Inhibitor of NF-κB kinase-interacting protein(IKIP)is known to promote proliferation of glioblastoma(GBM)cells,but how it affects migration and invasion by those cells is unclear.Methods:We compared levels of IKIP between glioma tissues and normal brain tissue in clinical samples and public databases.We examined the effects of IKIP overexpression and knockdown on the migration and invasion of GBM using transwell and wound healing assays,and we compared the transcriptomes under these different conditions to identify the molecular mechanisms involved.Results:Based on data from our clinical samples and from public databases,IKIP was overexpressed in GBM tumors,and its expression level correlated inversely with survival.IKIP overexpression in GBM cells inhibited migration and invasion in transwell and wound healing assays,whereas IKIP knockdown exerted the opposite effects.IKIP overexpression in GBM cells that were injected into mouse brain promoted tumor growth but inhibited tumor invasion of surrounding tissue.The effects of IKIP were associated with downregulation of THBS1 mRNA and concomitant inhibition of THBS1/FAK signaling.Conclusions:IKIP inhibits THBS1/FAK signaling to suppress migration and invasion of GBM cells.
基金supported by the National Key Research and Development Program of China(No.2021YFC2301405)the National Natural Science Foundation of China(No.31971121)Shanghai Science and Technology Plan Project(No.21ZR14718)。
文摘Macromolecular crystallography beamline BL17U1 at the Shanghai Synchrotron Radiation Facility has been relocated,upgraded,and given a new ID(BL02U1).It now delivers X-rays in the energy range of 6–16 keV,with a focused beam of 11.6μm×4.8μm and photon flux greater than 1012 phs/s.The high credibility and stability of the beam and good timing synchronization of the equipment significantly improve the experimental efficiency.Since June 2021,when it officially opened to users,over 4200 h of beamtime have been provided to over 200 research groups to collect data at the beamline.Its good performance and stable operation have led to the resolution of several structures based on data collected at the beamline.
文摘目的分析超声心动图联合血清凝血酶敏感蛋白1(thrombospondin-1,TSP-1)、甲壳质酶蛋白40(chitinase protein 40,YKL-40)浓度检测对高血压性心脏病患者的诊断价值。方法选择2021年1月至2022年6月四川友谊医院收治的高血压性心脏病患者98例(心脏病组)进行研究,患者入组均接受超声心动图检查。酶联免疫吸附测定法(enzyme-linked immunosorbent assay,ELISA)检测血清TSP-1、YKL-40浓度。Pearson法分析高血压性心脏病患者血清TSP-1、YKL-40浓度与超声心动图各项参数的相关性,采用受试者工作特征曲线(receiver operating characteristic curve,ROC)评估血清TSP-1、YKL-40浓度诊断高血压性心脏病的可靠性。结果与对照组相比,心脏病组患者的收缩压、舒张压、左心房前后直径(left atrial anteroposterior diameter,LAD)、左心室收缩末期内径(left ventricular end systolic diameter,LVESD)、左心房内径指数(left atrial inner diameter index,LADI)、室间隔舒张末期厚度(end-diastolic interventricular septum thickness,IVST)、左心室舒张末期内径(left ventricular end-diastolic diameter,LVEDD)、左心室后壁舒张末期厚度(left ventricular posterior wall end-diastolic thickness,LVPWT)、左心室舒张晚期峰值流速(diastolic advanced stage filling peak rate of flow,VA)值较高,二尖瓣血流舒张早期左心室充盈峰速(peak velocity of left ventricular filling during early diastole,VE)值、峰值速度比率(ratio of E velocity to A velocity,E/A)较低,差异有统计学意义(P<0.05)。与对照组相比,心脏病组患者血清TSP-1、YKL-40浓度较高,差异有统计学意义(P<0.05)。Pearson法分析显示,血清TSP-1、YKL-40浓度与LAD、LVESD、LADI、IVST、LVEDD、LVPWT、VA值均呈正相关(P<0.05),与VE值、E/A均呈负相关(P<0.05)。超声心动图评估患者发生高血压性心脏病的准确度为88.00%,血清TSP-1、YKL-40浓度对高血压性心脏病诊断的准确度为81.00%、82.50%。超声心动图联合血清TSP-1、YKL-40浓度对高血压性心脏病诊断的准确度为91.50%,其灵敏度为95.92%,特异度为87.25%。结论高血压性心脏病患者血清中TSP-1、YKL-40浓度升高,血清TSP-1、YKL-40浓度对高血压性心脏病有一定诊断价值,超声心动图联合血清TSP-1、YKL-40浓度可明显提高高血压性心脏病诊断的准确性。
