DST crosslinker(disuccinimide tartarate) is an isotype bifunctional, cleavable crosslinker (cleavable by an oxidizer) for applications that require crosslinking cleavability and that do not interfere with protein disulfide bonds with reducing agents.
Interleukin-2-inducible T cell kinase (ITK) is a non-receptor tyrosine kinase expressed in T cells, NKT cells and mast cells which plays a crucial role in regulating the T cell receptor (TCR), CD28, CD2, chemokine receptor CXCR4, and FcepsilonR-mediated signaling pathways. ITK inhibitors can be used for the treatment of inflammation and immune-mediated disorders. ITK inhibitor (N-[5-[[3-[(4-Acetylpiperazin-1-yl)carbonyl]-4-methyl-6-methoxy-phenyl]thio]thiazol-2-yl]-4-(N-1,2-dimethylpropylaminomethyl)benzamide) is the analogue of BMS-509744, which can potently and selectively inhibit Itk kinase activity. In vitro: BMS-509744 could reduce TCR-induced functions including PLCγ1 tyrosine phosphorylation, calcium mobilization, IL-2 secretion, and T-cell proliferation in vitro in both human and mouse cells [1]. In vivo: BMS-509744 suppressed the production of IL-2 induced by anti-TCR antibody administered to mice. BMS-509744 also significantly diminishes lung inflammation in a mouse model of ovalbumin-induced allergy/asthma [1]. Clinical trial: Up to now, both BMS-509744 and ITK inhibitor is still in the preclinical development stage.
AX-024 is a novel chemical compound that acts as an orally available inhibitor of the TCR-Nck interaction. Its primary mechanism of action is the selective inhibition of T cell activation triggered by TCR stimulation. With an IC50 value of approximately 1 nM, AX-024 effectively modulates cell signaling by specifically targeting SH3 domains. Additionally, AX-024 demonstrates desirable characteristics such as low acute toxicity, high potency, and excellent selectivity. Notably, it exhibits strong inhibitory effects on the production of IL-6, TNF-α, IFN-γ, IL-10, and IL-17A.