Antisense Smad2 inhibits high glucose-stimulated production of extracellular matrix in cultured rat glomerular mesangial cells

Transforminggrowthfactor-β1(TGF-β1)is amultifunctionalpolypeptidethatregulatesanum-berofcellularprocesses,includingcellprolifera-tion,differentiation,apoptosis,migration,matrix synthesis,andtheimmuneresponse[1,2].Inchron-icrenaldiseases,TGF-β1isakeymediatorofex-tracellularmatrix(ECM)accumulation[3].Oneof thetargetrenalcellsforTGF-β1isglomerular mesangialcellsthatarecapableofproducingcom-ponentsofECM,suchascollagens,lamininand fibronectin[4,5].Recentstudiesindicatedthatinhi-bitionofT…     

白细胞介素—2辅助治疗结核病疗效观察

1993年9月～1994年12月,我院用长春生物制品所的白细胞介素-2治疗结核15例,现报道如下.病例选择及治疗方法1.病例选择结核病人15例,均为男性,年龄29～42岁,肺结核4例,其中2例同时伴有腰背部软组织结核性脓肿;颈淋巴结核11例,4例合并脓肿,2例脓肿破溃.上述病例均经病理检查确诊,包括脓肿局部穿刺脓液送检;肿大淋巴结局部穿刺活检,肺结核根据胸片所示并行PPD试验阳性者.在外院均常规三联抗痨治疗半年以上,效果不佳.入我院后继续抗衡外加用基因工程白细胞介素-2免疫治疗.     

老年急性心肌梗死患者T淋巴细胞亚群与SIL—2R的检测

以间接免疫荧光法、单克隆与多克隆双抗体夹心法测定了２０例老年急性心肌梗死患者及健康老人外周血Ｔ细胞亚群、可溶性白细胞介素－２受体（ＳＩＬ－２Ｒ）的水平，发现老年急性心肌梗死组ＯＫＴ３、ＯＫＴ４、ＯＫＴ８水平显著降低，ＯＫＴ４／ＯＫＴ８与ＳＩＬ－２Ｒ水平则明显升高，提示老年急性心肌梗死患者Ｔ细胞亚群变化与ＳＩＬ－２Ｒ水平有一定关系。     

香菇多糖注射液对慢性乙型肝炎外周血单个核细胞膜IL—2受体表达的影响

The effects of lentinan on peripheral blood mononuclear cell (PBMC) expression of IL-2 receptor in patients with chronic hepatitis B in vitro and in vivo were studied. The expression percentage of IL-2 receptor in 44 patients with chronic hepatitis before treatment was 36.74 +/- 7.74, which was lower than healthy subjects, and was 48.92 +/- 3.79 after 2 months treatment of lentinan, which was approximated the normal control. PBMC from 30 patients with chronic hepatitis B were cultured in vitro with or without lentinan. The percentage of expression IL-2 receptor was 12.81 +/- 2.62 without lentinan and was 35.70 +/- 4.87 in the presence of lentinan. The concentration of lentinan stimulating expression of IL-2 receptor was between 0.2 to 200 g.ml-1. The results suggest that lentinan stimulates expression of IL-2 receptor on PBMC, which is associated with the therapeutic effectiveness of lentinan treatment.