Our aim is to evaluate the association between body mass index(BMI)and preoperative total testosterone(TT)levels with the risk of single and multiple metastatic lymph node invasion(LNI)in prostate cancer patients unde...Our aim is to evaluate the association between body mass index(BMI)and preoperative total testosterone(TT)levels with the risk of single and multiple metastatic lymph node invasion(LNI)in prostate cancer patients undergoing radical prostatectomy and extended pelvic lymph node dissection.Preoperative BMI,basal levels of TT,and prostate-specific antigen(PSA)were evaluated in 361 consecutive patients undergoing radical prostatectomy with extended pelvic lymph node dissection between 2014 and 2017・Patients were grouped into either nonmetastatic,one,or more than one metastatic lymph node invasion groups.The association among clinical factors and LNI was evaluated.LNI was detected in 52(14.4%)patients:28(7.8%)cases had one metastatic node and 24(6.6%)had more than one metastatic node.In the overall study population,BMI correlated inversely with TT(r=-0.256;P<0.0001).In patients without metastases,BMI inversely correlated with TT(r=-0.282;P<0.0001).In patients with metastasis,this correlation was lost.In the overall study population,BMI(odds ratio[OR]=1.268;P=0.005)was the only in dependent clinical factor associated with the risk of multiple metastatic LNI compared to cases with one metastatic node.In the nonmetastatic group,TT was lower in patients with BMI>28 kg m^2(P<0.0001).In patients with any LNI,this association was lost(P=0.232).The median number of positive nodes was higher in patients with BMI>28 kg m^2(P-0.048).In our study,overweight and obese patients had a higher risk of harboring multiple prostate cancer lymph node metastases and lower TT levels when compared to patients with normal BMI.展开更多
[目的]探讨linc01376在鼻咽癌组织与细胞内的表达特征,分析其可能的调控机制。[方法]采用实时荧光定量(qT-PCR)方法检测鼻咽癌组织和细胞中linc01376表达水平;采用CCK-8法、克隆平板形成实验、流式细胞学检测、划痕实验、Transwell侵袭...[目的]探讨linc01376在鼻咽癌组织与细胞内的表达特征,分析其可能的调控机制。[方法]采用实时荧光定量(qT-PCR)方法检测鼻咽癌组织和细胞中linc01376表达水平;采用CCK-8法、克隆平板形成实验、流式细胞学检测、划痕实验、Transwell侵袭实验等检测细胞增殖、迁移和侵袭能力变化;通过Western blot实验测定分子蛋白水平,探索linc01376的下游调控机制。[结果]qT-PCR结果表明,linc01376在鼻咽癌组织中表达明显高于正常鼻咽组织(20.230±1.815 vs 1.281±0.454,P<0.01)。linc01376表达越高,患者分期越晚(χ2=7.670,P<0.05),肿瘤负荷越大(χ2=6.312,P<0.05)。细胞功能学实验显示与对照组相比,沉默linc01376明显抑制鼻咽癌细胞的增殖(5-8F:2.248±0.055 vs 1.790±0.041,t=6.675,P<0.01;CNE2:1.502±0.046 vs 1.012±0.068,t=5.994,P<0.01)、迁移和侵袭能力(5-8F:182.00±8.60 vs 92.67±6.24,t=11.89,P<0.01;CNE2:166.67±8.18 vs 90.67±3.68,t=11.98,P<0.01)。机制研究发现linc01376可通过影响miR-4757调控下游IGF1的表达,最终激活AKT/p-AKT信号通路发挥促进肿瘤进程作用。[结论]linc01376在鼻咽癌进展中发挥重要调控作用,可能成为鼻咽癌靶向治疗的新靶点。展开更多
Despite significant progress in cancer research during the past decades,yet there are no major breakthroughs that can be translated into major benefits for the general public in terms of treatment or therapy for the c...Despite significant progress in cancer research during the past decades,yet there are no major breakthroughs that can be translated into major benefits for the general public in terms of treatment or therapy for the complex neoplastic diseases,especially for the malignant solid tumors.This depressing but indisputable fact leads to a call for new ideas to target tumor metastasis by editors of Nature Medicine<sup>[1]</sup>.The real problems are that the fundamental issues of transformation and malignancy in vivo are poorly understood.In a recent review on cancer,展开更多
文摘Our aim is to evaluate the association between body mass index(BMI)and preoperative total testosterone(TT)levels with the risk of single and multiple metastatic lymph node invasion(LNI)in prostate cancer patients undergoing radical prostatectomy and extended pelvic lymph node dissection.Preoperative BMI,basal levels of TT,and prostate-specific antigen(PSA)were evaluated in 361 consecutive patients undergoing radical prostatectomy with extended pelvic lymph node dissection between 2014 and 2017・Patients were grouped into either nonmetastatic,one,or more than one metastatic lymph node invasion groups.The association among clinical factors and LNI was evaluated.LNI was detected in 52(14.4%)patients:28(7.8%)cases had one metastatic node and 24(6.6%)had more than one metastatic node.In the overall study population,BMI correlated inversely with TT(r=-0.256;P<0.0001).In patients without metastases,BMI inversely correlated with TT(r=-0.282;P<0.0001).In patients with metastasis,this correlation was lost.In the overall study population,BMI(odds ratio[OR]=1.268;P=0.005)was the only in dependent clinical factor associated with the risk of multiple metastatic LNI compared to cases with one metastatic node.In the nonmetastatic group,TT was lower in patients with BMI>28 kg m^2(P<0.0001).In patients with any LNI,this association was lost(P=0.232).The median number of positive nodes was higher in patients with BMI>28 kg m^2(P-0.048).In our study,overweight and obese patients had a higher risk of harboring multiple prostate cancer lymph node metastases and lower TT levels when compared to patients with normal BMI.
文摘[目的]探讨linc01376在鼻咽癌组织与细胞内的表达特征,分析其可能的调控机制。[方法]采用实时荧光定量(qT-PCR)方法检测鼻咽癌组织和细胞中linc01376表达水平;采用CCK-8法、克隆平板形成实验、流式细胞学检测、划痕实验、Transwell侵袭实验等检测细胞增殖、迁移和侵袭能力变化;通过Western blot实验测定分子蛋白水平,探索linc01376的下游调控机制。[结果]qT-PCR结果表明,linc01376在鼻咽癌组织中表达明显高于正常鼻咽组织(20.230±1.815 vs 1.281±0.454,P<0.01)。linc01376表达越高,患者分期越晚(χ2=7.670,P<0.05),肿瘤负荷越大(χ2=6.312,P<0.05)。细胞功能学实验显示与对照组相比,沉默linc01376明显抑制鼻咽癌细胞的增殖(5-8F:2.248±0.055 vs 1.790±0.041,t=6.675,P<0.01;CNE2:1.502±0.046 vs 1.012±0.068,t=5.994,P<0.01)、迁移和侵袭能力(5-8F:182.00±8.60 vs 92.67±6.24,t=11.89,P<0.01;CNE2:166.67±8.18 vs 90.67±3.68,t=11.98,P<0.01)。机制研究发现linc01376可通过影响miR-4757调控下游IGF1的表达,最终激活AKT/p-AKT信号通路发挥促进肿瘤进程作用。[结论]linc01376在鼻咽癌进展中发挥重要调控作用,可能成为鼻咽癌靶向治疗的新靶点。
基金supported by the funds from Huazhong University of Science and TechnologyUS NIH grant GM072744
文摘Despite significant progress in cancer research during the past decades,yet there are no major breakthroughs that can be translated into major benefits for the general public in terms of treatment or therapy for the complex neoplastic diseases,especially for the malignant solid tumors.This depressing but indisputable fact leads to a call for new ideas to target tumor metastasis by editors of Nature Medicine<sup>[1]</sup>.The real problems are that the fundamental issues of transformation and malignancy in vivo are poorly understood.In a recent review on cancer,
