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刺激分子B7-1蛋白单克隆抗体
包装与价格:
产品名称 CD80 Mouse mAb 产品介绍
商品属性 产品介绍CD80 is a member of the Ig superfamily and serves as the ligand for two T cell molecules, CD28 and CTLA4. Interactions between CD28 and CD80 on activated B cells result in enhanced T cell activation. CD80 is rapidly induced on the surface of in vitro activated B cells, Epstein Barr Virus (EBV) transformed B cell lines, Burkitts lymphoma cell lines, freshly isolated follicular B lymphoma cells, T cells, and monocytes. It is also expressed at high levels in dendritic cells. It reacts weakly with a small proportion of non activated normal B cells and with HTLV1 infected T cells. CD80 does not react with peripheral monocytes, resting and activated normal T cells, T cell lines and T cell clones, nor with myelomonocytic cell lines.
商品详情 英文名称CD80 Mouse mAb 中文名称刺激分子B7-1蛋白单克隆抗体 别 名Activation B7-1 antigen; B lymphocyte activation antigen B7; B7; B7-1; B7-1 antigen; BB1; CD28 antigen ligand 1; CD28LG; CD28LG1; CD80 antigen(CD28 antigen ligand 1, B7-1 antigen); CD80 antigen; CD80 molecule; CD80_HUMAN; Costimulatory factor CD80; costimulatory molecule variant IgV-CD80; CTLA-4 counter-receptor B7.1; LAB7; T-lymphocyte activation antigen CD80. 抗体来源Mouse 克隆类型Monoclonal 克 隆 号10H5 交叉反应Human 产品应用IHC-P=1:50-200,IHC-F=1:50-200,IF=1:50-200 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量32 kDa 检测分子量 细胞定位细胞膜 性 状Liquid 浓 度1mg/ml 免 疫 原KLH conjugated synthetic peptide derived from human CD80 亚 型IgG1, k 纯化方法affinity purified by Protein G 缓 冲 液0.01M TBS(pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. 保存条件Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. 注意事项This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMedPubMed 靶点与功能 B7-1(CD80)是免疫球蛋白超家族成员,像T细胞活化的“加速器”,主要表达在活化的B细胞、单核细胞和树突状细胞表面。它通过与T细胞表面的CD28结合,提供T细胞活化必需的“**信号”(**信号为TCR识别抗原),没有它,T细胞就会“沉睡”(失能或凋亡)。同时,它还能与CTLA-4结合传递抑制信号,像“刹车”一样调节免疫平衡。在研究中,该抗体主要用于: 标记抗原提呈细胞(如树突状细胞)的活化状态; 阻断B7-1/CD28相互作用,研究免疫耐受机制(如自身免疫病模型); 检测肿瘤微环境中B7-1的表达,评估免疫治疗响应(如PD-1抑制剂联合治疗)。 实验操作关键要点 IHC实验(淋巴结组织切片): 抗原修复:柠檬酸钠缓冲液(pH6.0)微波修复15分钟(95℃),自然冷却; 阳性定位:活化B细胞或树突状细胞胞膜呈棕黄色阳性,生发中心区域信号较强; 对照设置:用脂多糖(LPS)活化的B细胞作阳性对照,未活化B细胞作阴性对照。 WB验证(THP-1单核细胞): 样本处理:细胞经PMA刺激48小时(诱导B7-1表达),RIPA裂解液(含1mM PMSF)冰上裂解30分钟; 关键技巧:上样量需达50μg总蛋白,一抗1:500稀释(5% BSA+TBST),4℃孵育过夜,曝光时间20秒(预期条带50-60kDa)。 功能阻断实验(T细胞增殖抑制): 抗体用量:10μg/mL抗体预处理抗原提呈细胞(如DC2.4细胞),37℃孵育1小时; 检测指标:CFSE染色法检测T细胞增殖率,B7-1抗体处理组增殖率应比对照组降低50%以上(提示共刺激信号被阻断)。 公司正在出售的产品
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