1. Immunology/Inflammation
  2. PD-1/PD-L1


Programmed death-1 (PD-1) is a cell surface receptor that functions as a T cell checkpoint and plays a central role in regulating T cell exhaustion. PD-1 is activated by the engagement of its ligands PDL-1 or PDL-2. PD-1 receptor delivers inhibitory checkpoint signals to activated T cells upon binding to its ligands PD-L1 and PD-L2 expressed on antigen-presenting cells and cancer cells, resulting in suppression of T-cell effector function and tumor immune evasion. Inhibiting the programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) pathway is an attractive strategy for tumor immunotherapy.

PD-1 is expressed on activated T cells, B cells, monocytes, dendritic cells (DCs), regulatory T cells (Tregs), and natural killer T cells (NKT). It is a member of a family of immunoglobulin domain (Ig) co-receptors that modify the outcome of activation of the T cell receptor by an antigen-presenting cell (APC) or infected target cell. PD-L1 is widely and constitutively expressed on both hematopoietic and nonhematopoietic cells; e.g., naive T and B cells, vascular endothelial cells, and pancreatic islet cells, whereas PD-L2 is exclusively and inducibly expressed on professional APCs.

PD-1/PD-L1 Related Products (135):

Cat. No. Product Name Effect Purity
  • HY-P9904
    Atezolizumab Inhibitor
    Atezolizumab (MPDL3280A) is a selective humanized monoclonal IgG1 antibody against programmed death ligand 1 (PD-L1), used for cancer research.
  • HY-P9903
    Nivolumab Inhibitor 98.83%
    Nivolumab is a programmed death receptor-1 (PD-1) blocking human IgG4 antibody to treat advanced (metastatic) non-small cell lung cancer.
  • HY-16141
    Cilengitide Inhibitor 99.36%
    Cilengitide (EMD 121974) is a potent integrins antagonist with IC50s of 0.61 nM (ανβ3), 8.4 nM (ανβ5) and 14.9 nM (α5β1), respectively. Cilengitide inhibits the binding of ανβ3 and ανβ5 to Vitronectin with IC50s of 4 nM and 79 nM, respectively. Cilengitide inhibits TGF-β/Smad signaling, mediates PD-L1 expression. Cilengitide also induces apoptosis, shows antiangiogenic effect in the research against glioblastoma and other cancers[1][2][3].
  • HY-P9902
    Pembrolizumab Inhibitor 99.06%
    Pembrolizumab (MK-3475) is a humanized IgG4 antibody inhibiting the programmed cell death 1 (PD-1) receptor, used in cancer immunotherapy.
  • HY-19991
    BMS-1 Inhibitor 99.56%
    BMS-1 is an inhibitor of the PD-1/PD-L1 protein/protein interaction (IC50 between 6 and 100 nM)[1][2].
  • HY-P99799
    Pacmilimab Inhibitor
    Pacmilimab (CX-072) is a potent PD-L1 inhibitor. Pacmilimab shows antitumor activity[1].
  • HY-P99785
    Opucolimab Inhibitor
    Opucolimab is an anti-PD-L1 recombinant human monoclonal antibody. Opucolimab can be used to synthesis antibody drug conjugates. Opucolimab can be used for the research of advanced solid tumors[1].
  • HY-P99944
    SHR-1701 (Retlirafusp alfa) is a bifunctional fusion protein targeting PD-L1 and TGF-β for cancer research[1].
  • HY-P99633
    Garivulimab Inhibitor
    Garivulimab (BGB-A333) is a humanized IgG1-variant monoclonal antibody that specifically targets and binds to PD-L1. Garivulimab selectively blocks the interaction of PD-L1 and PD-1. Garivulimab has antitumor activity[1].
  • HY-P3440
    WL12 98.49%
    WL12 is a specifically targeting programmed death ligand 1 (PD-L1) binding peptide. WL12 can be radiolabeled by different radionuclides, generating radiotracers, which can assess the tumor PD-L1 expression[1].
  • HY-P9903A
    Nivolumab (anti-PD-1) Inhibitor 99.20%
    Nivolumab (anti-PD-1) is a programmed death receptor-1 (PD-1) blocking human IgG4 antibody to treat advanced (metastatic) non-small cell lung cancer[1].
  • HY-P99419
    Acasunlimab Inhibitor
    Acasunlimab (GEN1046) is a bispecific antibody (bsAb) targeting PD-L1 and 4-1BB. Acasunlimab enhances T-cell and NK-cell function through conditional 4-1BB stimulation while constitutively blocking the PD-1/PD-L1 inhibitory axis. Acasunlimab can be used in research of cancer[1][2].
  • HY-132192
    PD-1/PD-L1-IN-9 Inhibitor 98.01%
    PD-1/PD-L1-IN-9 is a potent and orally active inhibitor of PD-1/PD-L1 interaction, with an IC50 of 3.8 nM. PD-1/PD-L1-IN-9 can enhance the killing activity of tumor cells by immune cells. PD-1/PD-L1-IN-9 also exhibits significant in vivo antitumor activity in a CT26 mouse model[1].
  • HY-130625
    PD-1/PD-L1-IN 6 Inhibitor
    PD-1/PD-L1-IN 6 (compound A13) is a potent PD-1/PD-L1 interaction inhibitor, with an IC50 of 132.8 nM. PD-1/PD-L1-IN 6 exhibits outstanding immunoregulatory activity. PD-1/PD-L1-IN 6 significantly elevates interferon-γ secretion in a Hep3B/OS-8/hPD-L1 and CD3 T cell co-culture model, without significant toxic effect. PD-1/PD-L1-IN 6 restores the immune response in a T cell-tumor co-culture model[1].
  • HY-P99489
    Budigalimab Inhibitor
    Budigalimab (ABBV 181; PR 1648817) is a humanized IgG1 monoclonal antibody targeting programmed cell death 1 (PD-1) receptor. Budigalimab is Fc mutated thus to reduce Fc receptor interactions and limit effector function[1].
  • HY-P99109
    Zimberelimab Antagonist
    Zimberelimab is a fully human IgG4 anti-PD-1 monoclonal antibody with high affinity and selectivity. Zimberelimab shows antitumor activities and can be used for various cancers research including cervical cancer, non-small cell lung cancer and classical Hodgkin’s lymphoma[1].
  • HY-P2478
    Human PD-L1 inhibitor V Inhibitor
    Human PD-L1 inhibitor V, a human PD-1 protein binding peptide with a Kd value of 3.32 μM. Human PD-L1 inhibitor V inhibit the interaction of hPD-1/hPD-L1[1].
  • HY-101098
    PD-1-IN-18 Inhibitor
    PD-1-IN-18 is a PD1 signaling pathway inhibitor, which acts as an immunomodulator.
  • HY-P99499
    Cetrelimab Inhibitor
    Cetrelimab (JNJ 63723283; JNJ 3283) is a humanized IgG4κ mAb targeting PD-1. Cetrelimab binds PD-1 (Kd=1.72 nM, HEK293) to block the interaction of PD-1 with PD-L1 and PD-L2 (IC50s=111.7 ng/mL and 138.6 ng/mL, respectively). Cetrelimab stimulates peripheral T cells, increases IFN-γ, IL-2, TNF-α level and inhibits tumor growth in vivo[1].
  • HY-P4072
    (D)-PPA 1 Inhibitor
    (D)-PPA 1 is a hydrolysisresistant d-peptide antagonist. (D)-PPA 1 serves as a potent PD-1/PD-L1 inhibitor. (D)-PPA 1 binds to PD-1 with the affinity 0f 0.51 μM with in vitro and in vivo efficacy[1].