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TNFSF13B

B细胞激活因子(B-cell activation factor,BAFF)又称BLyS、zTNF4、TNFSF13B、THANK和TALL-1,是TNF样细胞因子家族中的一员。BAFF与三种受体结合:b细胞激活因子受体(BAFF-r)、跨膜激活剂-钙调剂-亲环配体相互作用剂(TACI)、b细胞成熟抗原(BCMA)。

BAFF与它的受体之间的相互作用触发对于B细胞的形成和维持来说是必要的信号,进而响应外来物质的侵袭合成免疫球蛋白。在患者中适当的BAFF有助于维持正常的免疫力水平,而不足的水平可能会引起免疫缺陷,但过高的水平可能会引起异常高的抗体产生。当患者表现出自身免疫时,它产生针对自身组织的抗体。系统性红斑狼疮和类风湿关节炎都是由于体内较高水平的BAFF引起的。因此,调节BAFF的水平对于自身免疫疾病的治疗相当重要。

Belimumab是一种靶向可溶性BAFF的人类抗体,它的成功开发标志着系统性红斑狼疮(SLE)生物治疗发展的一个重要里程碑。Lanalumab是一种新的BAFF靶向抗体,通过阻断B细胞上的BAFF受体来阻止BAFF信号,该药物在干燥综合征临床试验中显示出很好的疗效,目前正在开展治疗SLE的临床Ⅱ期试验。

Recombinant Human TNFSF13B 活性蛋白实验验证数据

High Purity Validated
by SDS-PAGE

CSB-MP015007HU is detected by Mouse anti-6*His monoclonal antibody.

Excellent Bioactivity Validated by Functional ELISA

Measured by its binding ability in a functional ELISA. Immobilized TNFSF13B at 2 μg/ml can bind TNFRSF13C(CSB-MP853495HU1), the EC50 is 9.943-15.72 ng/ml.

Excellent Bioactivity Validated by LSPR Assay

Human TNFSF13B protein Fc tag (CSB-MP897523HU1) captured on COOH chip can bind Human BCMA protein Fc tag (CSB-MP023974HU1) with an affinity constant of 39 nM as detected by LSPR Assay.


TNFSF13B Antibodies

TNFSF13B for Homo sapiens (Human)

TNFSF13B Proteins

TNFSF13B Proteins for Mus musculus (Mouse)

TNFSF13B Proteins for Homo sapiens (Human)

TNFSF13B ELISA Kit

TNFSF13B ELISA Kit for Homo sapiens (Human)