目的探讨食管癌组织中CT10激酶调节子样蛋白(CT10 regulator of kinase like protein,CRKL)及细胞增殖核抗原Ki67的表达及与病理学特征的相关性。方法采用免疫组化(SP)法,检测60例食管癌组织及与其配对的56例正常癌旁组织中的CRKL及Ki6...目的探讨食管癌组织中CT10激酶调节子样蛋白(CT10 regulator of kinase like protein,CRKL)及细胞增殖核抗原Ki67的表达及与病理学特征的相关性。方法采用免疫组化(SP)法,检测60例食管癌组织及与其配对的56例正常癌旁组织中的CRKL及Ki67蛋白表达情况。结果 CRKL蛋白在食管癌中阳性表达率为56.7%(34/60),明显高于在正常癌旁组织的阳性表达率5.4%(3/56,P<0.01);其表达与食管癌分化程度(P=0.027)、TMN分期(P=0.029)、浸润深度(P=0.049)及淋巴结转移(P=0.012)有关,与患者年龄、性别、肿瘤大小、部位无关(P>0.05)。Ki67蛋白在食管癌中阳性表达率为68.3%(41/60),明显高于在正常癌旁组织的阳性表达率9.1%(5/56)(P<0.01);其表达与肿瘤的TMN分期(P=0.006)、淋巴结转移(P=0.028)有关,与患者年龄、性别、肿瘤大小、部位、分化程度、浸润深度无关(P>0.05)。CRKL及Ki67蛋白在食管癌组织中的表达呈正相关(r=0.352,P=0.006)。结论检测CRKL及Ki67可判断食管癌的恶性程度,CRKL可成为食管癌预后的临床预测指标及分子治疗的新靶点。展开更多
In order to compare the spark plasma sintedng （SPS） process plus hot isostatic press （HIP） with vacuum sintedng plus HIP, an investigation was carried out on the topography, microstructure and gain size distributi...In order to compare the spark plasma sintedng （SPS） process plus hot isostatic press （HIP） with vacuum sintedng plus HIP, an investigation was carried out on the topography, microstructure and gain size distribution of nanocrystalline WC-10Co composite powder and the sintered specimens prepared by SPS plus HIP and by vacuum sintering plus HIP by means of atomic force microscopy （AFM）. The mechanical properties of the sintered specimens were also investigated. It is very easy to find cobalt lakes in the specimen prepared by vacuum sintering plus HIP process. But the microstructure of the specimen prepared by SPS plus HIP is more homogeneous, and the grain size is smaller than that prepared by vacuum sintering plus HIP. The WC-10Co ultrafine cemented carbide consolidated by SPS plus HIP can reach a relative density of 99.4%, and the transverse rupture strength （TRS） is higher than 3540 MPa, the Rockwell A hardness （HRA） is higher than 92.8, the average grain size is smaller than 300 nm, and the WC-10Co ultrafine cemented carbide with excellent properties is achieved. The specimen prepared by SPS with HIP has better properties and microstructure than that prepared by vacuum sintering with HIP.展开更多
文摘目的探讨食管癌组织中CT10激酶调节子样蛋白(CT10 regulator of kinase like protein,CRKL)及细胞增殖核抗原Ki67的表达及与病理学特征的相关性。方法采用免疫组化(SP)法,检测60例食管癌组织及与其配对的56例正常癌旁组织中的CRKL及Ki67蛋白表达情况。结果 CRKL蛋白在食管癌中阳性表达率为56.7%(34/60),明显高于在正常癌旁组织的阳性表达率5.4%(3/56,P<0.01);其表达与食管癌分化程度(P=0.027)、TMN分期(P=0.029)、浸润深度(P=0.049)及淋巴结转移(P=0.012)有关,与患者年龄、性别、肿瘤大小、部位无关(P>0.05)。Ki67蛋白在食管癌中阳性表达率为68.3%(41/60),明显高于在正常癌旁组织的阳性表达率9.1%(5/56)(P<0.01);其表达与肿瘤的TMN分期(P=0.006)、淋巴结转移(P=0.028)有关,与患者年龄、性别、肿瘤大小、部位、分化程度、浸润深度无关(P>0.05)。CRKL及Ki67蛋白在食管癌组织中的表达呈正相关(r=0.352,P=0.006)。结论检测CRKL及Ki67可判断食管癌的恶性程度,CRKL可成为食管癌预后的临床预测指标及分子治疗的新靶点。
基金This work was financially supported by the Postdoctoral Science Foundation of China (No.2003034504),the Open Foundation ofState Key Laboratory of Advanced Technology for Materials Synthesis & Processing, Wuhan University of Technology (2004-2005)and the National High-Tech Research and Development Program of China (No.2002AA302504).
文摘In order to compare the spark plasma sintedng （SPS） process plus hot isostatic press （HIP） with vacuum sintedng plus HIP, an investigation was carried out on the topography, microstructure and gain size distribution of nanocrystalline WC-10Co composite powder and the sintered specimens prepared by SPS plus HIP and by vacuum sintering plus HIP by means of atomic force microscopy （AFM）. The mechanical properties of the sintered specimens were also investigated. It is very easy to find cobalt lakes in the specimen prepared by vacuum sintering plus HIP process. But the microstructure of the specimen prepared by SPS plus HIP is more homogeneous, and the grain size is smaller than that prepared by vacuum sintering plus HIP. The WC-10Co ultrafine cemented carbide consolidated by SPS plus HIP can reach a relative density of 99.4%, and the transverse rupture strength （TRS） is higher than 3540 MPa, the Rockwell A hardness （HRA） is higher than 92.8, the average grain size is smaller than 300 nm, and the WC-10Co ultrafine cemented carbide with excellent properties is achieved. The specimen prepared by SPS with HIP has better properties and microstructure than that prepared by vacuum sintering with HIP.
