前列腺癌是老年男性的常见恶性肿瘤,我国患者在治疗时多属于中晚期,总体预后不佳。如何提高疾病早期诊断率,是其治疗关键。目前PSA和直肠指诊是前列腺癌筛查的主要手段,而如何在前列腺特异性抗原(prostate specific antigen, PSA)灰区时...前列腺癌是老年男性的常见恶性肿瘤,我国患者在治疗时多属于中晚期,总体预后不佳。如何提高疾病早期诊断率,是其治疗关键。目前PSA和直肠指诊是前列腺癌筛查的主要手段,而如何在前列腺特异性抗原(prostate specific antigen, PSA)灰区时,提高诊断的灵敏度和特异性及避免不必要的前列腺穿刺活检是目前研究的热点。近年的实验研究中,发现了一些蛋白质标志物、分子标志物和微小RNA (microRNA, miRNA)等。且研究也证实了这些指标可以提高前列腺癌诊断灵敏度和准确性,本文将对此类国内外关于血清miRNA-135、miRNA-141与PSA对前列腺癌的诊断及预后的研究情况进行综述。Prostate cancer is a common malignant tumor in elderly men. Most patients in our country are in the middle and late stages of treatment, and the overall prognosis is poor. How to improve the early diagnosis rate of the disease is the key to its treatment. At present, PSA and digital rectal examination are the main means of prostate cancer screening, and how to improve the sensitivity and specificity of diagnosis and avoid unnecessary prostate biopsy in the gray area of prostate specific antigen (PSA) is a current research hotspot. In recent years, some protein markers, molecular markers and microRNA (microRNA, miRNA) have been discovered in experimental studies. And studies have also confirmed that these indicators can improve the sensitivity and accuracy of prostate cancer diagnosis. This article will review the research on the diagnosis and prognosis of serum miRNA-135, miRNA-141 and PSA for prostate cancer at home and abroad.展开更多
目的探讨miRNA-141在弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)中的表达及其与预后的关系。方法选取锦州医科大学附属第一医院2017年1月-2019年12月收治的40例DLBCL患者初始治疗前的石蜡包埋组织标本。应用荧光实时定量...目的探讨miRNA-141在弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)中的表达及其与预后的关系。方法选取锦州医科大学附属第一医院2017年1月-2019年12月收治的40例DLBCL患者初始治疗前的石蜡包埋组织标本。应用荧光实时定量PCR法检测其中miRNA-141的表达水平。同时按照免疫分型、国际预后指数(IPI评分)等分组,探讨miRNA-141的相对表达量与免疫分型等临床特征之间的关系。另收集性别、年龄相匹配的20例淋巴结反应性增生(reactive hyperplasia of lymph node,RHL)患者的石蜡组织标本作为对照组。结果miRNA-141在DLBCL患者中的表达水平低于RHL组(P<0.05)。DLBCL中miRNA-141高表达组的2年总体生存率(92.2%)高于低表达组(26.2%)(P=0.001)。多因素COX模型分析显示:40例DLBCL中,miRNA-141低表达(P=0.009)、国际预后指数IPI≥3分(P=0.012)分别为各自独立的预后不良的因素。结论miRNA-141在弥漫大B细胞淋巴瘤患者中表达下降,miRNA-141高表达组总体生存率明显高于低表达组,提示miRNA-141可能是辅助诊断及评估预后的另一个标志物。展开更多
Objective:The objective of this study was to investigate the expression levels of microRNA-141-5p(miRNA-141-5p),MAPK1 and neutrophil elastase in patients with and without preeclampsia(PE),and the relationship between ...Objective:The objective of this study was to investigate the expression levels of microRNA-141-5p(miRNA-141-5p),MAPK1 and neutrophil elastase in patients with and without preeclampsia(PE),and the relationship between miRNA-141-5p and MAPK1 with respect to the secretion of elastase by neutrophils in patients with PE.Methods:Thirty patients with PE and 30 healthy pregnant(HP)women were recruited from The Second Hospital of Shanxi Medical University,Taiyuan,China,between February 2017 and July 2018.Neutrophils were isolated from 8 mL peripheral blood samples and cultured.We recorded neutrophil count and morphology during culture.Apoptosis was detected by flow cytometry in different groups at 0,24,and 48 h.The expression levels of elastase were detected in neutrophils by enzyme-linked immunosorbent assay,whereas the expression levels of miRNA-141-5p in peripheral blood neutrophils were detected by real-time polymerase chain reaction.We used TargetScanHuman Release 7.2 to analyze the target genes of miRNA-141-5p.The expression of MAPK1 in peripheral blood neutrophils was detected by western blotting.Data were analyzed by SPSS version 21.0 software,and comparisons between groups were carried out with the Studentt test.Results:There was no significant difference between the PE and HP groups(P>0.050)with regard to age or body mass index.The weight of newborns in the PE group(2846.00±600.00 g)was significantly lower than that in the HP group(3055.00±230.68 g).The number of neutrophilic granulocytes(NGs)in blood samples from the PE group was significantly higher than that in the HP group(P=0.003).There was no significant difference between the groups with regard to morphology.Apoptosis in the PE group was delayed when compared with the HP group at different time points.TheP value of apoptosis in the PE and HP groups were respectively 0.790,<0.001 and 0.030 at 0 h,24 h and 48 h.The expression levels of miRNA-141-5p in the PE group were significantly lower than those in the HP group(P<0.050).The expression levels of MAPK1 in neutrophils from the PE group were significantly higher than those in the HP group(P<0.050)by western blot.The expression levels of elastase in neutrophils from the PE group were significantly higher than those in the HP group(P<0.050).Furthermore,the number of NGs in peripheral blood from the PE group was higher than that of the HP group;however,the levels of apoptosis were lower.The expression levels of miRNA-141-5p in NGs decreased,the expression of MAPK1 increased,and the secretion of neutrophil elastase in the NG medium increased in the PE group than those in the HP group.Conclusion:Collectively,our analysis suggested that miRNA-141-5p may be involved in the pathogenesis of PE by regulating the MAPK1 signaling pathway to activate neutrophils and increase the secretion of elastase.展开更多
文摘前列腺癌是老年男性的常见恶性肿瘤,我国患者在治疗时多属于中晚期,总体预后不佳。如何提高疾病早期诊断率,是其治疗关键。目前PSA和直肠指诊是前列腺癌筛查的主要手段,而如何在前列腺特异性抗原(prostate specific antigen, PSA)灰区时,提高诊断的灵敏度和特异性及避免不必要的前列腺穿刺活检是目前研究的热点。近年的实验研究中,发现了一些蛋白质标志物、分子标志物和微小RNA (microRNA, miRNA)等。且研究也证实了这些指标可以提高前列腺癌诊断灵敏度和准确性,本文将对此类国内外关于血清miRNA-135、miRNA-141与PSA对前列腺癌的诊断及预后的研究情况进行综述。Prostate cancer is a common malignant tumor in elderly men. Most patients in our country are in the middle and late stages of treatment, and the overall prognosis is poor. How to improve the early diagnosis rate of the disease is the key to its treatment. At present, PSA and digital rectal examination are the main means of prostate cancer screening, and how to improve the sensitivity and specificity of diagnosis and avoid unnecessary prostate biopsy in the gray area of prostate specific antigen (PSA) is a current research hotspot. In recent years, some protein markers, molecular markers and microRNA (microRNA, miRNA) have been discovered in experimental studies. And studies have also confirmed that these indicators can improve the sensitivity and accuracy of prostate cancer diagnosis. This article will review the research on the diagnosis and prognosis of serum miRNA-135, miRNA-141 and PSA for prostate cancer at home and abroad.
文摘目的探讨miRNA-141在弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)中的表达及其与预后的关系。方法选取锦州医科大学附属第一医院2017年1月-2019年12月收治的40例DLBCL患者初始治疗前的石蜡包埋组织标本。应用荧光实时定量PCR法检测其中miRNA-141的表达水平。同时按照免疫分型、国际预后指数(IPI评分)等分组,探讨miRNA-141的相对表达量与免疫分型等临床特征之间的关系。另收集性别、年龄相匹配的20例淋巴结反应性增生(reactive hyperplasia of lymph node,RHL)患者的石蜡组织标本作为对照组。结果miRNA-141在DLBCL患者中的表达水平低于RHL组(P<0.05)。DLBCL中miRNA-141高表达组的2年总体生存率(92.2%)高于低表达组(26.2%)(P=0.001)。多因素COX模型分析显示:40例DLBCL中,miRNA-141低表达(P=0.009)、国际预后指数IPI≥3分(P=0.012)分别为各自独立的预后不良的因素。结论miRNA-141在弥漫大B细胞淋巴瘤患者中表达下降,miRNA-141高表达组总体生存率明显高于低表达组,提示miRNA-141可能是辅助诊断及评估预后的另一个标志物。
基金supported by a grant from the Natural Science Foundation of Shanxi(No.201901D111367)Scientific research plan of National Health Commission(No.2019050,and the major research project of Shanxi Province(Directory)(201603D321038)doctoral research fund of Shanxi Medical University(BS201713)。
文摘Objective:The objective of this study was to investigate the expression levels of microRNA-141-5p(miRNA-141-5p),MAPK1 and neutrophil elastase in patients with and without preeclampsia(PE),and the relationship between miRNA-141-5p and MAPK1 with respect to the secretion of elastase by neutrophils in patients with PE.Methods:Thirty patients with PE and 30 healthy pregnant(HP)women were recruited from The Second Hospital of Shanxi Medical University,Taiyuan,China,between February 2017 and July 2018.Neutrophils were isolated from 8 mL peripheral blood samples and cultured.We recorded neutrophil count and morphology during culture.Apoptosis was detected by flow cytometry in different groups at 0,24,and 48 h.The expression levels of elastase were detected in neutrophils by enzyme-linked immunosorbent assay,whereas the expression levels of miRNA-141-5p in peripheral blood neutrophils were detected by real-time polymerase chain reaction.We used TargetScanHuman Release 7.2 to analyze the target genes of miRNA-141-5p.The expression of MAPK1 in peripheral blood neutrophils was detected by western blotting.Data were analyzed by SPSS version 21.0 software,and comparisons between groups were carried out with the Studentt test.Results:There was no significant difference between the PE and HP groups(P>0.050)with regard to age or body mass index.The weight of newborns in the PE group(2846.00±600.00 g)was significantly lower than that in the HP group(3055.00±230.68 g).The number of neutrophilic granulocytes(NGs)in blood samples from the PE group was significantly higher than that in the HP group(P=0.003).There was no significant difference between the groups with regard to morphology.Apoptosis in the PE group was delayed when compared with the HP group at different time points.TheP value of apoptosis in the PE and HP groups were respectively 0.790,<0.001 and 0.030 at 0 h,24 h and 48 h.The expression levels of miRNA-141-5p in the PE group were significantly lower than those in the HP group(P<0.050).The expression levels of MAPK1 in neutrophils from the PE group were significantly higher than those in the HP group(P<0.050)by western blot.The expression levels of elastase in neutrophils from the PE group were significantly higher than those in the HP group(P<0.050).Furthermore,the number of NGs in peripheral blood from the PE group was higher than that of the HP group;however,the levels of apoptosis were lower.The expression levels of miRNA-141-5p in NGs decreased,the expression of MAPK1 increased,and the secretion of neutrophil elastase in the NG medium increased in the PE group than those in the HP group.Conclusion:Collectively,our analysis suggested that miRNA-141-5p may be involved in the pathogenesis of PE by regulating the MAPK1 signaling pathway to activate neutrophils and increase the secretion of elastase.
