PROTAC BTK Degrader-1

PROTAC BTK Degrader-1, a powerful, selective, and orally bioavailable degrader of PROTAC BTK, demonstrates effective reduction in BTK protein levels and tumor suppression. It exhibits IC50 values of 34.51 nM for BTK WT and 64.56 nM for BTK-481S, highlighting its potency and efficacy in targeting and diminishing BTK protein abundance [1].

PROTAC BTK Degrader-11 is a PROTAC degrader that targets and degrades BTK with a DC50 of 1.7 nM. It is utilized in oncological research.

PROTAC BTK Degrader-12 (EXAMPLE 19) is a PROTAC-based BTK degrader, featuring a structure where the BTK ligand and linker are highlighted in pink and black, the linker in black, and the VHL ligand in blue.

PROTAC BTK Degrader-10 (Example 1P) is a PROTAC compound that targets BTK for degradation. It is applicable in the research of chronic lymphocytic leukemia (CLL). [Pink: ligand for target protein; Black: linker; Blue: ligand for E3 ligase Cereblon].

PROTAC BTK Degrader-13 (Compound 25) is a targeted BTK PROTAC degrader with a DC50 of 0.27 μM. It inhibits BTK activity with an IC50 of 0.44 μM and suppresses IL-2-induced T cell kinase (ITK) with an IC50 of 2.16 μM. This compound also inhibits the p38 MAPK signaling pathway, thereby blocking the activation of the BCR (B cell receptor) signaling pathway. [Pink: ligand for target protein BTK ligand 15; Black: linker; Blue: ligand for E3 ligase cereblon]

MT-802 is an effective BTK degrader based on PROTAC technology (DC50: 1 nM). MT-802 has the potential to treat C481S mutant chronic lymphocytic leukemia (CLL).

Lenalidomide-PEG3-iodine, an E3 ligase ligand-linker conjugate, consists of a cereblon-based Lenalidomide ligand and a 3-unit polyethylene glycol (PEG) linker. This compound is utilized in creating various proteolysis targeting chimeras (PROTACs), including the highly effective PROTAC BTK degrader SJF620, which has a degradation concentration 50 (DC50) of 7.9 nM[1].

FDU73 is a potent and selective BTK PROTAC degrader with a DC50 of 2.9 nM in JeKo-1 cells. It inhibits tumor cell proliferation and exhibits antitumor activity.

1-(Piperidin-4-ylmethyl)piperidine is a PROTAC linker used in the synthesis of PROTAC molecules, such as PROTAC BTK Degrader-9.

PROTAC BTK Degrader-2, a potent degrader of BTK through the PROTAC mechanism, effectively diminishes BTK protein levels [1].

PROTAC BTK Degrader-6 (Compound 15), with a DC50 of 3.18 nM, exhibits anti-inflammatory properties by inhibiting NF-κB activation and suppressing the expression of pro-inflammatory cytokines such as IL-1β and IL-6 [1].

GBD-9, a dual-mechanism degrader, effectively promotes the degradation of BTK and GSPT1 through recruitment of E3 ligase cereblon (CRBN). As a PROTAC molecule, GBD-9 induces BTK degradation, while also acting as a molecular glue for GSPT1 degradation, demonstrating potent inhibition of cancer cell growth [1].

PTD10 is a BTK-targeting PROTAC degradator (DC50=0.5 nM, KD=2.28 nM) that induces apoptosis via caspase-dependent and mitochondrial pathways, suitable for studying B-cell dysregulation.

PROTAC BTK Degraders-5 (Compound 3e) is a selective Bruton's tyrosine kinase (BTK) degrader with a DC50 of 7.0 nM in JeKo-1 cells, demonstrating specificity by not affecting CRBN neosubstrates. It also exhibits antiproliferative effects on various lymphoma cell lines, underscoring its potential application in chronic lymphoid malignancies research.