pd-1/pd-l1 interaction

Motixafortide (BKT140 4-fluorobenzoyl) is an antagonist of CXCR4 (IC50: 1 nM). BMS-1166 hydrochloride is an inhibitor of PD-1/PD-L1 interaction (IC50: 1.4 nM). BMS-1166 rivalries the inhibitory effect of PD-1/PD-L1 immune checkpoint on T cell activation.

BMS-202 (PD1-PDL1 inhibitor 2) is an inhibitor of the PD-1 (Programmed death- 1) /PD-Ll (Programmed death-ligand 1) protein/protein interaction.

BMS-1 (PD-1/PD-L1 inhibitor 1) is an inhibitor of the PD1-PD-L1 protein-protein interaction. It also acts as an immunomodulator. Programmed death ligand 1 (PD-L1) is a protein in humans that is encoded by the CD274 gene and the upregulation of PD-L1 allows Ys to evade the host immune system. High tumor expression of PD-L1 was associated with increased tumor aggressiveness and a 4.5-fold increased risk of death.

Atezolizumab is an antibody inhibitor, a humanized monoclonal antibody, IgG1, which targets PD-L1 and blocks the interaction of PD-L1 with PD-1. Atezolizumab has antitumor activity and promotes T-cells to attack tumor cells.

PD-1-IN-22 is a potent inhibitor of the programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) interaction, with an IC50 of 92.3 nM.

BMS-1166-N-piperidine-CO-N-piperazine dihydrochloride, a resorcinol di-Ph ether scaffold-based programmed cell death-1 (PD-1)/programmed cell death ligand 1 (PD-L1) inhibitor, inhibits the PD-1/PD-L1 interaction with an IC50 of 39.2 nM. It contains the target protein PD-1/PD-L1 ligand and PROTAC linker, which can be used to synthesize PROTAC PD-1/PD-L1 degrader-1 and has anticancer activity. Additionally, it serves as a diluent for the preparation of tablets for direct compression.

PD-1/PD-L1-IN-9, with an IC50 of 3.8 nM, is a potent and orally active inhibitor of the PD-1/PD-L1 interaction. It enhances the immune cells' ability to kill tumor cells and demonstrates significant antitumor activity in vivo in a CT26 mouse model.

Durvalumab (MEDI 4736) is a humanized monoclonal antibody targeting PD-L1. It can block the interaction of PD-L1 with PD-1 and CD80, with IC50 values of 0.1 and 0.04 nM, respectively. Durvalumab is often used in combination with platinum-based compounds for the treatment of non-small cell lung cancer and advanced hepatocellular carcinoma cells.

PD-1/PD-L1-IN-51 (Compound III-4) is an inhibitor of PD-1/PD-L1 (IC50: hPD-L1 at 2.9 nM). It binds directly to PD-L1, blocking the interaction between PD-1 and PD-L1, and enhancing the release of IFN-γ. Additionally, PD-1/PD-L1-IN-51 exhibits antitumor activity.

LSD1-IN-35 (Compound Z-1) is a selective inhibitor of LSD1, exhibiting an IC50 of 108 nM. This compound inhibits the demethylation of H3K4me1/2 and acts as an immunomodulator. Additionally, LSD1-IN-35 enhances the responsiveness of gastric cancer cells to T-cell killing by reducing PD-L1 expression, thereby weakening the PD-1/PD-L1 interaction.

PD-1/PD-L1-IN-52 (Compound Ⅲ-5) is an orally active inhibitor of PD-1/PD-L1 interaction, exhibiting an IC50 of 109.9 nM. It demonstrates antitumor activity in a C57BL/6 mouse model of MC38 colon carcinoma cells expressing human PD-1, achieving a tumor growth inhibition (TGI) rate of 49.6%.

PD-L1degrader-2 (Compound B3) is an orally effective AUTAC degrader that degrades PD-L1 via the autophagy-lysosome pathway with a DC50 of 0.5 μM. It inhibits the interaction between PD-1 and PD-L1, with an IC50 of 22.8 nM. PD-L1degrader-2 upregulates the expression of Atg9b, Lamp1, and Mitf, activating the autophagy-lysosome system. It exhibits antitumor activity in the CT26 mouse model.

D5B is an effective and selective PD-L1 inhibitor that has been modified with DBCO. It degrades PD-L1 in 4T1 and B16-F10 tumor cells with EC50 values of 5.4 μM and 6.2 μM, respectively. D5B can block the PD-L1/PD-1 interaction and exhibits antitumor activity.

PD-L1/VISTA-IN-1 (Compound P17) is an orally active dual inhibitor targeting PD-L1 and VISTA. It effectively hinders the PD-1/PD-L1 interaction (IC50: 0.1492 μM) and the VISTA pathway (KD: 0.2723 μM), leading to the reactivation of T cells. Additionally, PD-L1/VISTA-IN-1 exhibits antitumor activity.

PD-L1/HDAC-IN-1 (Compound 14) is an inhibitor of PD-L1 and HDAC, effectively blocking PD-1/PD-L1 interaction as well as HDAC2 and HDAC3 with IC50 values of 88.10, 27.98, and 14.47 nM, respectively. It exhibits mild cytotoxicity in MCF-7 cells (IC50=19.34 μM) and enhances the expression of PD-L1 and CXCL10, promoting antitumor immune responses by recruiting T cell infiltration into the tumor microenvironment (TME).

PD-L1/HDAC6-IN-1 (Compound HP29) is an inhibitor targeting both PD-L1 and HDAC6, effectively disrupting the PD-L1/PD-1 interaction and inhibiting HDAC6 activity, with IC50 values of 26.8 nM and 69 nM, respectively. This compound enhances the cytotoxicity of Jurkat T cells against HepG2 cells, exhibiting an IC50 of 3.4 μM. In rats, PD-L1/HDAC6-IN-1 demonstrates favorable pharmacokinetics, showing a drug exposure level of 871.62 ng·h/mL, and displays antitumor activity in a B16-F10 xenograft mouse model.

PD-L1-IN-4 (Compound X18) is an orally active PD-L1 inhibitor that demonstrates notable inhibitory activity on the PD-1/PD-L1 interaction (IC50= 1.3 nM) and enhances the inhibitory effect of PD-L1 on T cells (EC50= 152.8 nM). PD-L1-IN-4 can be utilized in cancer research.

PD-1/PD-L1 antagonist 1 (Compound A5) is an inhibitor of the interaction between programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1), with an IC50 value of 23.78 nM.

PD-1/PD-L1-IN-43 (Compound Z13) is a small molecule inhibitor that specifically targets the interaction between PD-1 and PD-L1. It exhibits significant in vivo antitumor activity against B16-F10 melanoma. By disrupting the interaction between PD-1 and PD-L1, PD-1/PD-L1-IN-43 effectively inhibits tumor growth and is applicable in antitumor research.

LZFPN-90 (LZ90) is a dual-target compound aimed at NAMPT and PD-L1. It inhibits the interaction between PD-1/PD-L1 and NAMPT activity. LZFPN-90 suppresses cell growth in a NAMPT-dependent manner, blocking the cell cycle and subsequently inducing apoptosis. Additionally, LZFPN-90 exhibits target-dependent antitumor activity, impacting metabolic processes and the immune system.

Antitumor agent-169 (Compound B3) is a dual inhibitor of PD-1/PD-L1 interaction and PARP7, with IC50 values of 0.426 μM and 2.50 nM, respectively. It exhibits affinity for human PD-L1 with a Ki of 20.2 nM and can restore T cell function by increasing IFN-γ secretion. Antitumor agent-169 inhibits cell viability in MDA-MB-231 and Jurkat T cells, demonstrates antitumor activity against melanoma in mouse models, and possesses favorable pharmacokinetic properties.

LLW-018 is a potent PD-1/PD-L1 inhibitor with an IC50 value of 2.61 nM. It can disrupt the PD-1/PD-L1 interaction, with a cell-based PD-1/PD-L1 blocking bioassay IC50 value of 0.88 μM. LLW-018 holds potential for research in immune-related diseases.

Antitumor agent-170 (Compound C6) inhibits PD-1/PD-L1 interaction and PARP7 with IC50 values of 0.342 μM and 7.05 nM, respectively. It shows high affinity for human PD-L1, with a Ki of 9.31 nM, and can restore T cell function while increasing IFN-γ secretion. In mouse models, Antitumor agent-170 exhibits antitumor effects against melanoma and demonstrates favorable pharmacokinetic properties.

BMS-242 is an effective inhibitor of PD-1/PD-L1 interaction.