2. Signaling Pathways
  3. Immunology/Inflammation
  4. PD-1/PD-L1

PD-1/PD-L1

PD-1/Programmed death-ligand 1

PD-1/PD-L1

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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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-131183
    PROTAC PD-1/PD-L1 degrader-1
    		Inhibitor 99.52%
    PROTAC PD-1/PD-L1 degrader-1, a PD-1/PD-L1 PROTAC based on Cereblon E3 ligand, inhibits PD-1/PD-L1 interaction with an IC50 of 39.2 nM. PROTAC PD-1/PD-L1 degrader-1 significantly restores the immunity repressed in a co-culture model of Hep3B/OS-8/hPD-L1 and CD3 T cells. PROTAC PD-1/PD-L1 degrader-1 moderately reduces the protein levels of PD-L1 in a lysosome-dependent manner.
    PROTAC PD-1/PD-L1 degrader-1
  • HY-P99118
    Serplulimab
    		Inhibitor 99.30%
    Serplulimab (HLX 10) is humanized monoclonal anti-PD-1 antibody. Serplulimab can be used in research of small cell lung cancer.
    Serplulimab
  • HY-P99345
    Dostarlimab
    		Inhibitor
    Dostarlimab (TSR-042) is a humanized anti-PD-1 monoclonal antibody. Dostarlimab binds with high affinity to human PD-1 and competitively inhibits its interaction with its ligands, PD-L1 and PD-L2, with IC50s of 1.8 and 1.5 nM, respectively.
    Dostarlimab
  • HY-P99040
    Onvatilimab
    		Inhibitor
    Onvatilimab (JNJ-61610588) is a human IgG1κ anti-VISTA (V-domain Ig Suppressor of T-cell Activation) monoclonal antibody. Onvatilimab has an anti-tumor activity.
    Onvatilimab
  • HY-P99675
    Ivonescimab
    		Inhibitor
    Ivonescimab (AK112) is a PD-1/VEGF Bispecific Antibody. Ivonescimab can be used for cancer research.
    Ivonescimab
  • HY-120635
    BMS-1001 hydrochloride
    		Inhibitor 99.32%
    BMS-1001 is an orally active human PD-L1/PD-1 immune checkpoint inhibitor. BMS-1001 exhibits low-toxicity in cells. The IC50 value of BMS-1001 in a homogeneous time-resolved fluorescence (HTRF) binding assay is 2.25 nM.
    BMS-1001 hydrochloride
  • HY-P99687
    Latikafusp
    		Inhibitor 99.00%
    Latikafusp (AMG 256) is a bifunctional fusion protein comprising a PD-1-targeting antibody and IL-21 mutein designed to deliver IL-21 pathway stimulation to PD-1+ cells. Latikafusp is designed to prime and extend the activity of cytotoxic and memory T cells and induce anti-tumor immunity. Latikafusp has the potential for solid tumors research.Latikafusp may lead to the development of immunogenicity-mediated responses.
    Latikafusp
  • HY-142221
    ARB-272572
    		Inhibitor 99.85%
    ARB-272572 is an oral effective small molecule PD-L1 inhibitor, with an IC50 value of 400 pM. ARB-272572 has research significance in tumors and chronic viral infections.
    ARB-272572
  • HY-101097
    PD-1-IN-17
    		Inhibitor 99.57%
    PD-1-IN-17 is a programmed cell death-1 (PD-1) inhibitor extracted from patent WO2015033301A1, Compound 12, inhibits 92% splenocyte proliferation at 100 nM.
    PD-1-IN-17
  • HY-144501
    D18
    		Activator 98.79%
    D18 is an immune modulator. D18 acts as a TLR7/8 dual agonist (EC50=24 nM for hTLR7 and 10 nM for hTLR8, respectively). D18 increases PD-L1 expression through epigenetic regulation, thus sensitizing tumors to PD-1/PD-L1 blockade. D18 is a ADC cytotoxin uesd for the systhesis of ADC HE-S2.
    D18
  • HY-108730A
    Avelumab (anti-PD-L1)
    		Inhibitor
    Avelumab (anti-PD-L1) is a fully human IgG1 anti-PD-L1 monoclonal antibody with potential antibody-dependent cell-mediated cytotoxicity.
    Avelumab (anti-PD-L1)
  • HY-P99833
    Cosibelimab
    		Inhibitor 99.90%
    Cosibelimab (CK-301; TG-1501) is a high-affinity, fully human PD-L1-blocking monoclonal antibody that binds PD-L1 and blocks its interaction with PD-1. Cosibelimab has a functional Fc domain and is capable of inducing ADCC and complement-dependent cytotoxicity (CDC)-mediated killing of PD-L1+ cell lines, including lymphoma cells.
    Cosibelimab
  • HY-P99166
    Vudalimab
    		Inhibitor ≥99.0%
    Vudalimab is a potent dual PD-1 and CTLA-4 inhibitor as a fully humanized bispecific monoclonal antibody. Vudalimab targets immune checkpoint receptors PD-1 and CTLA-4 and promotes tumor-selective T-cell activation.
    Vudalimab
  • HY-101058A
    PD1-PDL1-IN 1 TFA
    		Inhibitor
    PD1-PDL1-IN 1 TFA (compound 16) is a potent programmed cell death 1 (PD-1) inhibitor. PD1-PDL1-IN 1 TFA is useful as immune modulator.
    PD1-PDL1-IN 1 TFA
  • HY-P3139
    TPP-1
    		Inhibitor 99.19%
    TPP-1 is a potent inhibitor of the PD-1/PD-L1 interaction. TPP-1 binds specifically to PD-L1 with a high affinity (KD=95 nM). TPP-1 inhibits human tumor growth in vivo via reactivating T-cell function.
    TPP-1
  • HY-144258
    PD-1/PD-L1-IN-14
    		Inhibitor 99.85%
    PD-1/PD-L1-IN-14 (compound 17) is a bifunctional inhibitor of PD-1/PD-L1 interactions, with an IC50 of 27.8 nM. PD-1/PD-L1-IN-14 (compound 17) inhibits PD-1/PD-L1 interactions and promotes dimerization, internalization, and degradation of PD-L1.
    PD-1/PD-L1-IN-14
  • HY-153064
    MAX-10181
    		Inhibitor 98.07%
    MAX-10181 (PD-1/PD-L1-IN-30) is a PD-1/PD-L1 binding inhibitor, with an IC50 value of 0.018 μM. MAX-10181 can be used for research of cancers and other related diseases.
    MAX-10181
  • HY-P99941
    Retifanlimab
    Retifanlimab is an anti-programmed cell death protein 1 (anti-PD-1) monoclonal antibody (mAb). Retifanlimab can be used for the research of gastroesophageal adenocarcinoma (GEA).
    Retifanlimab
  • HY-P99618
    Fidasimtamab
    		Inhibitor
    Fidasimtamab (IBI-315; BH2950) is a recombinant human IgG1 bispecific antibody that targets, binds and inhibits both HER2 and PD-1 and their downstream signalling pathways, and links PD-1 expressing T cells to HER2 expressing tumour cells. Fidasimtamab has potential immunosuppressive and antitumor activity.
    Fidasimtamab
  • HY-103048A
    PD-1/PD-L1-IN 3 TFA
    		Inhibitor 99.34%
    PD-1/PD-L1-IN 3 TFA, a macrocyclic peptide, is a potent and selective inhibitor of the PD-1/PD-L1 and CD80/PD-L1 interactions extracted from patent WO2014151634A1, compound No.1. PD-1/PD-L1-IN 3 TFA interferes with PD-L1 binding to PD-1 and CD80 by binding to PD-L1, with IC50s of 5.60 nM and 7.04 nM, respectively. PD-1/PD-L1-IN 3 TFA can be used for the research of various diseases, including cancer and infectious diseases.
    PD-1/PD-L1-IN 3 TFA
Cat. No. Product Name / Synonyms Application Reactivity