Dynabeads™ 小鼠 pan B (B220) 是一种磁珠,可提供稳健的通用工具,用于直接从任何样品中分离或去除小鼠 T 细胞,包括组织酶切物,如脾脏或淋巴结、全血、骨髓和单核细胞了解更多信息
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货号
数量
11441D
5 mL
货号 11441D
价格(CNY)
10,003.00
飞享价
Ends: 31-Dec-2025
14,232.00
共减 4,229.00 (30%)
Each
添加至购物车
数量:
5 mL
价格(CNY)
10,003.00
飞享价
Ends: 31-Dec-2025
14,232.00
共减 4,229.00 (30%)
Each
添加至购物车
Dynabeads™ 小鼠 pan B (B220) 是一种磁珠,可提供稳健的通用工具,用于直接从任何样品中分离或去除小鼠 T 细胞,包括组织酶切物,如脾脏或淋巴结、全血、骨髓和单核细胞 (MNC)。 •从任何样品中快速分离小鼠 T 细胞 – 无需色谱柱 • 阳性分离以用于分子下游检测或高效去除小鼠 B 细胞
回收的细胞具有出色的得率、纯度和活力 Dynabeads™ 小鼠 pan B (B220) 是均匀、具有超顺磁性的微珠(4.5 µm 直径),可从脾脏或淋巴结中轻松分离小鼠 B 细胞,但可能使用任何单细胞悬浮液。Dynabeads™ 小鼠 pan B 微珠包被有原代单克隆抗体,对 B220 膜抗原具有特异性。从 B 细胞分化的早期祖 B 阶段开始,在整个发育过程中 B220(也称为 CD45R)在所有 B 细胞上表达。在培养管中加入 Dynabeads™ 小鼠 pan B,其会在较短的孵育期中结合 B 细胞,然后用磁力架将微珠结合细胞与未结合细胞分离开来。这种快速且温和的分离方法不需要使用色谱柱,有助于确保分离的 B 细胞的高纯度、回收率和活力。
适用于下游分子检测的去除和阳性分离 由于用于分离的强大磁力架,Dynabeads™ 小鼠 pan B (B220) 可用于黏性样品,如来自组织、全血和骨髓的单细胞悬浮液,并可在约 30 分钟内有效去除小鼠 B 细胞。当用于阳性分离以供下游研究时,Dynabeads™ 小鼠 pan B 还可以高效回收高纯度的活细胞;例如,细胞被裂解但仍与微珠附着并进一步纯化核酸或蛋白。请注意,这些微珠不会释放活细胞。因此,如果您想要分离基于细胞应用的小鼠 B 细胞,或者需要使用流式细胞分析检查样品,则应使用 Dynabeads™ 小鼠 CD43(Untouched™ B 细胞)。
磁化率能够衡量磁珠向磁力架迁移的速度,其大小取决于铁含量和氧化铁的特性。Dynabeads磁珠的磁化率是指质量磁化率,单位可以是cgs单位/g或m^3/kg(国际单位制)。对于亚铁磁性和铁磁性物质,质量磁化率取决于磁场强度(H),这些物质的磁化强度与H不是线性关系,而是随着场强增加而趋于饱和。因此, Dynabeads磁珠的质量磁化率是在固定条件下由标准操作程序而测定的。我们产品目录中给出的质量磁化率是国际单位制。磁化率由从高斯(cgs、emu)单位向国际单位的转换,是通过“高斯系数(emu/g或cgs/g)x 4π x 10^-3”而实现的。所得单位也被称为合理化质量磁化率,与(国际单位制)无量纲磁化率单位有所区别。通常,质量磁化率可用来衡量在非均匀磁场中影响物体的力(Fz)。测定Dynabeads磁珠的质量磁化率时,首先对样本称重,然后将样本放置于已知强度的磁场中。随后,再次称重得到样本重量(F1),并与关闭磁场时样本的重量(F0)进行对比。使用下述公式计算磁化率:K x 10^–3 = [(F1-F0) x m x 0.335 x 10^6],K表示质量为m的样本的质量磁化率。最后,将磁化率转换为国际单位制。
IL-6 plays a unique role in initiating c-Maf expression during early stage of CD4 T cell activation.
Authors:Yang Y, Ochando J, Yopp A, Bromberg JS, Ding Y,
Journal:J Immunol
PubMed ID:15728480
'The transcription factor c-Maf plays a critical and selective role in IL-4 gene transcription. Little is known about the mechanism that guides c-Maf regulation during early T cell activation. We report that IL-6 but not IL-4 or other cytokines, rapidly up-regulates c-Maf transcription, as early as 3 h after TCR ... More
Molecular basis for the interaction of the hepatitis B virus core antigen with the surface immunoglobulin receptor on naive B cells.
Authors:Lazdina U, Cao T, Steinbergs J, Alheim M, Pumpens P, Peterson DL, Milich DR, Leroux-Roels G, Sällberg M,
Journal:J Virol
PubMed ID:11413303
'The nucleocapsid of the hepatitis B virus (HBV) is composed of 180 to 240 copies of the HBV core (HBc) protein. HBc antigen (HBcAg) capsids are extremely immunogenic and can activate naive B cells by cross-linking their surface receptors. The molecular basis for the interaction between HBcAg and naive B ... More
Lymphocytes genetically modified to express tumor antigens target DCs in vivo and induce antitumor immunity.
'The exploitation of the physiologic processing and presenting machinery of DCs by in vivo loading of tumor-associated antigens may improve the immunogenic potential and clinical efficacy of DC-based cancer vaccines. Here we show that lymphocytes genetically modified to express self/tumor antigens, acting as antigen carriers, efficiently target DCs in vivo ... More
Development of autoimmunity in IL-14alpha-transgenic mice.
Authors:Shen L, Zhang C, Wang T, Brooks S, Ford RJ, Lin-Lee YC, Kasianowicz A, Kumar V, Martin L, Liang P, Cowell J, Ambrus JL,
Journal:J Immunol
PubMed ID:17015757
Multiple genetic loci contribute to the development of systemic lupus erythematosus (SLE). In murine models for SLE, various genes on chromosome four have been implicated. IL-14 is a cytokine originally identified as a B cell growth factor. The il14 gene is located on chromosome 4. IL-14alpha is a cytokine encoded ... More
Sle1ab mediates the aberrant activation of STAT3 and Ras-ERK signaling pathways in B lymphocytes.
Authors:Liu K, Liang C, Liang Z, Tus K, Wakeland EK,
Journal:J Immunol
PubMed ID:15661926
The Sle1ab genomic interval on murine chromosome 1 mediates the loss of immune tolerance to chromatin resulting in antinuclear Abs (ANA) production in the lupus-prone NZM2410 mouse. Global gene expression analysis was used to identify the molecular pathways that are dysregulated at the initiation of B lymphocyte autoimmunity in B6.Sle1ab ... More