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多配体蛋白聚糖1(CD138)重组兔单抗
包装与价格:
产品名称 CD138 Recombinant Rabbit mAb 产品介绍
商品属性 产品介绍The protein encoded by this gene is a transmembrane (type I) heparan sulfate proteoglycan and is a member of the syndecan proteoglycan family. The syndecans mediate cell binding, cell signaling, and cytoskeletal organization and syndecan receptors are required for internalization of the HIV-1 tat protein. The syndecan-1 protein functions as an integral membrane protein and participates in cell proliferation, cell migration and cell-matrix interactions via its receptor for extracellular matrix proteins. Altered syndecan-1 expression has been detected in several different tumor types. While several transcript variants may exist for this gene, the full-length natures of only two have been described to date. These two represent the major variants of this gene and encode the same protein. [provided by RefSeq, Jul 2008]
商品详情 英文名称CD138 Recombinant Rabbit mAb 中文名称多配体蛋白聚糖1(CD138)重组兔单抗 别 名SDC1; SDC; SYND1; Syndecan I; SyndecanI; syndecan; Sdc1; Syndecan1; AA408134; AA409076; Sstn; syn-1; CD 138; CD-138; CD138 antigen; Heparan sulfate proteoglycan fibroblast growth factor receptor; SDC 1; Syndecan1 precursor; SDC1_HUMAN. 抗体来源Rabbit 克隆类型Recombinant 克 隆 号5D12 交叉反应Human 产品应用IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量34 kDa 检测分子量 细胞定位细胞膜 分泌型蛋白 性 状Liquid 浓 度1mg/ml 免 疫 原KLH conjugated synthetic peptide derived from human CD138 亚 型IgG 纯化方法affinity purified by Protein A 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 CD138(Syndecan-1,SDC1)是跨膜硫酸乙酰肝素蛋白聚糖(分子量约34kDa),核心功能与研究价值包括: 浆细胞标志物:在多发性骨髓瘤(MM) 中,CD138是肿瘤浆细胞的特异性表面抗原(阳性率>95%),是骨髓活检IHC和流式细胞术分型的核心指标; 肿瘤微环境调控:通过胞外域肝素 sulfate 链结合FGF、VEGF等生长因子,促进肿瘤血管生成;胞内域与细胞骨架蛋白(如肌动蛋白)相互作用,增强肿瘤细胞黏附与侵袭; 治疗靶点:CD138单抗偶联药物(如Indatuximab ravtansine)可靶向递送细胞毒素至MM细胞,临床前研究显示对耐药性MM有效。 实验操作关键要点 IHC-P多发性骨髓瘤诊断: 样本处理:骨髓活检石蜡切片,EDTA缓冲液(pH9.0)高压修复20分钟(优于柠檬酸盐缓冲液,保留硫酸肝素链抗原性); 抗体孵育:一抗1:200稀释(5% BSA+TBST),4℃湿盒孵育过夜,HRP二抗1:500室温孵育30分钟; 阳性判读:骨髓瘤细胞细胞膜呈棕黄色强阳性,正常浆细胞弱阳性,淋巴细胞/粒细胞阴性(与CD38共染可提高诊断特异性)。 流式细胞术(MM细胞分选): 样本制备:骨髓单个核细胞用PBS+2% FBS洗涤,CD138抗体(如艾普蒂生物APC标记)1:50稀释,4℃避光孵育30分钟; 抗体组合:与CD38-PE、CD45-FITC共染,MM细胞典型表型为CD138⁺CD38⁺⁺CD45⁻/dim; 注意事项:CD138易因蛋白酶降解脱落,样本需新鲜处理(离体后2小时内染色)。 IF肿瘤细胞黏附研究: 与整合素β1(ITGB1) 共染,CD138(绿色)与ITGB1(红色)在细胞边缘共定位,促进肿瘤细胞与细胞外基质黏附(共定位系数>0.5)。 公司正在出售的产品
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