Introduction To TNFSF13B/CD257
Drug targets a biomolecule that can directly bind to drugs and then react. Generally, the target refers to a protein related to the cause of disease. The focus of the target began with focusing on tumors and then began to spread to various fields. Introduction to TNFSF13B/CD257 is a common target in medicine.
CD257 (also known as BAFF, TNFSF13B), is an important B cell activation factor and belongs to the tumor necrosis factor family (TNFSF). It is expressed as a homotrimeric transmembrane protein. In health, BAFF and APRIL are mainly produced by myeloid cells, including conventional dendritic cells (CDC), follicular DC, monocytes, neutrophils, and macrophages, and less often by activated B cells.
Function of Target TNFSF13B/CD257
BAFF and APRIL are two members of the TNF superfamily that play a central role in B cell survival. BAFF or BLyS is a B-cell survival factor that supports autoreactive B cells and prevents their absence. BAFF expression is strongly associated with autoimmunity and is enhanced by genetic alterations and viral infection. Furthermore, BAFF appears to be associated with lipogenesis, atherosclerosis, neuroinflammatory processes, and ischemia-reperfusion (I/R) injury. Increased BAFF levels may directly and indirectly interfere with B cell immunity; this may lead to a breakdown of immune tolerance, production of autoantibodies, and persistent local brain inflammation and destruction of brain tissue.
Gene Pathway of Target TNFSF13B/CD257
When BAFF binds to its receptor, it activates a series of signaling pathways, the most important of which is the NF- κ B (nuclear factor κ B) signaling pathway. Moreover, other signaling pathways such as PI3K / Akt and mTOR may be involved. After the binding of BAFF to its receptor, it eventually activates NF- κ B through the transmission of a series of signaling molecules. NF- κ B is a transcription factor, whose activation promotes the transcription of a range of genes, thereby regulating the proliferation, differentiation, and activation of B cells. BAFF blockade protected against colitis to some extent by relieving inflammation and inhibiting the intestinal NLRP 3 inflammasome and the macrophage NF- κ B signaling-based pathway. BAFF and APRIL have two common receptors, namely, the TNFR cognate transmembrane activator and the Ca 2 + regulator the CAML interactor (TACI), and the B cell maturation antigen. BAFF alone can also be coupled to a third receptor called BAFFR (also known as BR 3 or BLyS receptor). These receptors are normally expressed by immune cells in the B cell lineage. The binding of BAFF or APRIL to its receptor supports the differentiation of B cells and proliferation and upregulation of immunoglobulin production and expression of B cell effector molecules.

Fig 1: BAFF Gene Pathway. (Reference source: Ullah MA, Mackay F. The BAFF-APRIL System in Cancer. Cancers (Basel). 2023 Mar 16;15(6):1791.)
Alpha Lifetech Can Provide
Currently, various immune drugs targeting TNFSF13B/CD257 targets are in the updating iteration, and taking the disease alone or in combination with other products has become a new approach with remarkable achievements. The TNFSF13B/CD257 targets have shown important research value and application prospects in both biology and drug research and development. With further research and detection technology advances, TNFSF13B/CD257 target products are also essential in medical research. Alpha Lifetech can provide TNFSF13B/CD257 corresponding products and help each customer's research and development. Alpha Lifetech provides end-to-end biotechnology development solutions, from upstream cell culture optimization to downstream purification scale. Our process is validated through analytical techniques such as HPLC, SDS-PAGE, and mass spectrometry to ensure product consistency and regulatory compliance. By combining cutting-edge biotechnology expertise with flexible service models, we help clients accelerate project research progress and ensure smooth experimentation.
| Catalog Number | Product Name | Product Sizes |
|---|---|---|
| ADT1079 | 1mg,5mg | |
| ADT1615 | 100ug,1mg,5mg | |
| ADT1646 | 1mg,5mg | |
Reference
[1] Zhang W, Kater AP, Widhopf GF 2nd, Chuang HY, Enzler T, James DF, Poustovoitov M, Tseng PH, Janz S, Hoh C, Herschman H, Karin M, Kipps TJ. B-cell activating factor and v-Myc myelocytomatosis viral oncogene homolog (c-Myc) influence the progression of chronic lymphocytic leukemia. Proc Natl Acad Sci U S A. 2010 Nov 2;107(44):18956-60.
[2] Langat DL, Wheaton DA, Platt JS, Sifers T, Hunt JS. Signaling pathways for B cell-activating factor (BAFF) and a proliferation-inducing ligand (APRIL) in human placenta. Am J Pathol. 2008 May;172(5):1303-11.
[3] Pelekanou V, Kampa M, Kafousi M, Darivianaki K, Sanidas E, Tsiftsis DD, Stathopoulos EN, Tsapis A, Castanas E. Expression of TNF-superfamily members BAFF and APRIL in breast cancer: immunohistochemical study in 52 invasive ductal breast carcinomas. BMC Cancer. 2008 Mar 20;8:76.
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2018-07-16


