重组抗人CD28单抗(9.3) | Syd Labs PA007458

重组抗人CD28单抗(9.3) Syd Labs PA007458 - 武汉多找找科技

重组抗人CD28单抗(9.3) | Syd Labs PA007458

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体内实验级重组抗人CD28单克隆抗体,小鼠IgG2a Kappa(克隆号9.3,Syd Labs货号:PA007458)是用哺乳动物细胞生产的重组抗体,适用于体外和体内研究,纯度>95%。其不变区为小鼠Mouse IgG2a Kappa (mIgG2a或m2a),可与重组小鼠IgG2a同型对照抗体配套使用。样品制备条件和最佳样品稀释度应由研究人员通过实验确定。

产品参数

货号 PA007458
产品名称重组抗人CD28单抗(9.3) | Syd Labs PA007458
英文名 In vivo Grade Recombinant Anti-Human CD28 Monoclonal Antibody, Mouse IgG2a Kappa (Clone: 9.3)
供货商名称 Syd Labs, Inc.
品牌名 Syd Labs
别称 T 细胞特异性表面糖蛋白 CD28,TP44
概述 Syd Labs提供重组小鼠IgG2a同型对照抗体。样品制备条件和最佳样品稀释度应由研究人员通过实验确定。
克隆号 9.3
同种型 小鼠 IgG2a kappa
应用 ELISA、流式细胞术、中和、功能测定,如生物分析PK和ADA测定,以及用于研究受人CD28蛋白影响的生物途径的测定。
免疫源 重组抗人CD28单克隆抗体(克隆:9.3)在哺乳动物细胞中产生
抗体形式 0.2 μM过滤溶液,1x PBS
内毒素 根据 LAL 方法,≤1 EU每1mg 蛋白质
纯度 >95%(在还原条件下通过SDS-PAGE测定)
运输 体内实验级重组抗人CD28单克隆抗体,小鼠IgG2a Kappa(克隆号9.3) 用冰袋运输。收到后,请立即将其存放在下面建议的温度下。
稳定性与存储 使用手动除霜冰箱并避免重复冻融循环。 自收到之日起 1 个月,保存在2 至 8°C。 自收到之日起12个月,保存在-20 至 -70°C。
注意事项 PA007458 Syd Labs提供重组小鼠IgG2a同型对照抗体。样品制备条件和最佳样品稀释度应由研究人员通过实验确定。
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关于Syd Labs产品如果有任何技术或其它问题,欢迎随时联系Syd Labs国内市场推广合作伙伴:武汉多找找科技有限公司,企业微信:duozhaozhao2024 联系电话:18162581039(龙经理)
应用详情 ELISA、流式细胞术、中和、功能测定,如生物分析PK和ADA测定,以及用于研究受人CD28蛋白影响的生物途径的测定。

文献

抗人CD28单克隆抗体,体内实验级重组,小鼠IgG2a Kappa(克隆号9.3)(In vivo Grade Recombinant Anti-Human CD28 Monoclonal Antibody, Mouse IgG2a Kappa (Clone: 9.3),货号:PA007458 Syd Labs)

抗人CD28单抗(9.3)是一种特异性针对人CD28分子的经典克隆号单克隆抗体。CD28作为T细胞表面的关键共刺激受体,在与配体CD80/CD86结合后可提供T细胞完全激活所需的第二信号。在免疫学研究中,9.3抗体常与抗CD3单抗协同使用,通过交联结合模拟抗原提呈细胞的共刺激途径,显著促进T细胞增殖、诱导IL-2等细胞因子的分泌以及增强细胞毒性反应,广泛应用于T细胞体外激活与扩增、免疫共刺激通路调控、过继性细胞免疫治疗(如CAR-T细胞培养)及肿瘤免疫等前沿研究。

Syd Labs推出的重组抗人CD28单抗(9.3)采用哺乳动物细胞重组表达系统生产,为体内实验级高纯度试剂。该产品严格控制内毒素水平,且无载体蛋白与防腐剂,有效避免了传统杂交瘤表达可能带来的免疫干扰与批间差异。重组工程设计的Mouse IgG2a Kappa结构不仅能消除杂交瘤轻重链错配风险,还具备优异的结构一致性与批次稳定性,可配套重组小鼠IgG2a同型对照抗体使用,完全适用于高标准的体外细胞功能实验与体内免疫学实验。

抗人CD28单抗(9.3)部分引用文献:

1. Profiling T cell activation using single-molecule fluorescence in situ hybridization and flow cytometry.
Bushkin, Y., et al. J Immunol. 2015 Jan 15;194(2):836-41. PMID: 25505292
“Flow cytometric characterization of Ag-specific T cells typically relies on detection of protein analytes. …Shifting the analysis to detection of RNA would provide several significant advantages, which we illustrate by developing a new host immunity-based platform for detection of infections. …Cytokine mRNAs synthesized in response to ex vivo stimulation with pathogen-specific Ags are detected in T cells with single-molecule fluorescence in situ hybridization followed by flow cytometry. …Background from pre-existing in vivo analytes is lower for RNAs than for proteins, allowing greater sensitivity for detection of low-frequency cells. …The utility of probing immunological memory of infections is demonstrated by detecting T cells that recognize mycobacterial and viral Ags in donors exposed to the respective pathogens.”

2. Glycogen synthase kinase-3 controls IL-10 expression in CD4(+) effector T-cell subsets through epigenetic modification of the IL-10 promoter.
Hill, E. V., et al. Eur J Immunol. 2015 Apr;45(4):1103-15. PMID: 25627813
“To investigate the requirement for APCs during GSK3 inhibition mediated induction of IL-10 in CD4+ T cells, naive or polarized Tg4 CD4+ T cells were cultured with anti-CD3/ anti-CD28 stimulation in the presence of GSK3 inhibitors and IL-10 secretion was assessed. …(A) Naive CD4+ T cells were isolated from Tg4 splenocytes and cultured with anti-CD3 and anti-CD28 in the presence of IL-2 and GSK3 inhibitors or vehicle control. …NS, not significant (ANOVA). (B) Th1 polarized Tg4 cells were restimulated with anti-CD3 and anti-CD28 in the presence of IL-2 and GSK3 inhibitors or vehicle control. …Alternatively, live CD4+ T cells were isolated by Ficoll centrifugation and then magnetic separation using the CD4+ T cell Isolation kit II and restimulated with either anti-CD3 and anti-CD28 coated beads (Dynabeads, Life Technologies) or on anti-CD3 (1 µg/mL, eBioscience; clone 145-2C11) and anti-CD28 (2 µg/mL, eBioscience; clone 37.51) coated plates. …Total mRNA from 3-5 × 10^6 CD4+ T cells after overnight anti-CD3 and anti-CD28 stimulation was isolated using RNAeasy Mini Kit (Qiagen) and quality and quantity were verified using a Nanodrop (Thermo scientific).”