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-P3143A
    BMSpep-57 hydrochloride
    		Inhibitor 99.69%
    BMSpep-57 hydrochloride is a potent and competitive macrocyclic peptide inhibitor of PD-1/PD-L1 interaction with an IC50 of 7.68 nM. BMSpep-57 hydrochloride binds to PD-L1 with Kds of 19 nM and 19.88 nM in MST and SPR assays, respectively. BMSpep-57 hydrochloride facilitates T cell function by in creasing IL-2 production in PBMCs.
    BMSpep-57 hydrochloride
  • HY-132212
    LH1307
    		Inhibitor
    LH1307 is a C2-symmetric inhibitor of PD-1/PD-L1 protein-protein interactions with a IC50 value of 3.0 μM and can be used in cancer studies.
    LH1307
  • HY-P10217
    PD-1/PD-L1-IN-42
    		Inhibitor 99.82%
    PD-1/PD-L1-IN-42 (Compound B8.4) is an inhibitor of the interaction between PD-1 and PD-L1, with an EC50 of 0.1 μM. PD-1/PD-L1-IN-42 can be used for the research of cancer immunotherapy.
    PD-1/PD-L1-IN-42
  • 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
  • HY-P1812A
    AUNP-12 TFA
    		Antagonist
    AUNP-12 TFA (NP-12 TFA) is a peptide antagonist of the PD-1 signaling pathway, displays equipotent antagonism toward PD-L1 and PD-L2 in rescue of lymphocyte proliferation and effector functions. AUNP-12 TFA exhibits immune activation, excellent antitumor activity, and potential for better management of immune-related adverse events (irAEs).
    AUNP-12 TFA
  • HY-132192A
    PD-1/PD-L1-IN-9 hydrochloride
    		Inhibitor 99.26%
    PD-1/PD-L1-IN-9 hydrochloride 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 hydrochloride can enhance the killing activity of tumor cells by immune cells. PD-1/PD-L1-IN-9 hydrochloride also exhibits significant in vivo antitumor activity in a CT26 mouse model.
    PD-1/PD-L1-IN-9 hydrochloride
  • HY-P99807
    Prolgolimab
    		Inhibitor
    Prolgolimab (BCD-100) is a human IgG1 anti-PD-1 monoclonal antibody containing the Fc-silencing 'LALA' mutation. Prolgolimab can be used for the research of advanced melanoma.
    Prolgolimab
  • HY-128605
    PD-1-IN-22
    		Inhibitor
    PD-1-IN-22 is a potent programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) interaction inhibitor with an IC50 of 92.3 nM.
    PD-1-IN-22
  • HY-P99594
    Socazolimab
    		Inhibitor 98.52%
    Socazolimab (ZKAB001) is an anti-PD-L1 monoclonal antibody. Socazolimab has lasting safety and efficacy in the treatment of recurrent or metastatic cervical cancer. Socazolimab also has potential applications in small cell lung cancer, esophageal squamous cell carcinoma (ESCC), advanced urothelial carcinoma and osteosarcoma.
    Socazolimab
  • HY-P99639
    Geptanolimab
    		Inhibitor
    Geptanolimab (CBT-501) is a humanized IgG4k monoclonal antibody against programmed death-1 (PD-1). Siplizumab inhibits the binding of PD-L1/L2 to PD-1 through a competitive action. Siplizumab can be used in research of cancer.
    Geptanolimab
  • HY-P2477
    Human PD-L1 inhibitor IV
    		Inhibitor 99.68%
    Human PD-L1 inhibitor IV, a polypeptide, is a competitive human PD-1 protein inhibitor with a Kd value of 1.38 μM. Human PD-L1 inhibitor IV inhibits the interaction of hPD-1/hPD-L1.
    Human PD-L1 inhibitor IV
  • HY-P2478A
    Human PD-L1 inhibitor V TFA
    		Inhibitor
    Human PD-L1 inhibitor V TFA, a human PD-1 protein binding peptide with a Kd value of 3.32 μM. Human PD-L1 inhibitor V TFA inhibit the interaction of hPD-1/hPD-L1.
    Human PD-L1 inhibitor V TFA
  • HY-101058
    PD1-PDL1-IN 1
    		Inhibitor
    PD1-PDL1-IN 1 (compound 16) is a potent programmed cell death 1 (PD-1) inhibitor. PD1-PDL1-IN 1 is useful as immune modulator.
    PD1-PDL1-IN 1
  • HY-P2470
    Human PD-L1 inhibitor II
    		Inhibitor 98.34%
    Human PD-L1 inhibitor II is a potent PD-L1 inhibitor with anti-cancer activity.
    Human PD-L1 inhibitor II
  • HY-168530
    PDL1 degrader-1
    		Degrader
    PDL1 degrader-1 (compound PMT-O9-1A) is a potent PD-L1 degrader. PDL1 degrader-1 decreases the protein expression of PD-L1. PDL1 degrader-1 shows cytotoxicity. PDL1 degrader-1 shows anticancer activity.
    PDL1 degrader-1
  • HY-163757
    PROTAC PD-L1 degrader-1
    		Inhibitor
    PROTAC PD-L1 degrader-1 is a CRBN-based PD-L1-PROTAC degrader with a notable PD-L1 protein degradation capability. PROTAC PD-L1 degrader-1 shows potent PD-L1 degradation in 4T1 cells with a DC50 of 0.609 μM. PROTAC PD-L1 degrader-1 can be used for the study of breast cancer. (Blue: CRBN ligand (HY-150839), Black: linker; Pink: PD-L inhibitor (HY-19745)).
    PROTAC PD-L1 degrader-1
  • HY-163041
    PD-1/PD-L1-IN-36
    		Inhibitor
    PD-1/PD-L1-IN-36 (Compound 2k) is a PD-1/PD-L1 complex inhibitor (IC50: 15 nM). PD-1/PD-L1-IN-36 can be used for research of cancer immunotherapy.
    PD-1/PD-L1-IN-36
  • HY-P99758
    Nofazinlimab
    		Inhibitor 98.83%
    Nofazinlimab (CS1003) is a humanised IgG4 anti-PD-1 monoclonal antibody. Nofazinlimab can be used for unresectable hepatocellular carcinoma (uHCC) research.
    Nofazinlimab
  • HY-P990171
    Anti-Mouse PD-L1/B7-H1 (LALA-PG) Antibody (10F.9G2)
    		Inhibitor
    Anti-Mouse PD-L1/B7-H1 (LALA-PG) Antibody (10F.9G2) is a mouse-derived IgG2a, κ type antibody inhibitor, targeting to mouse PD-L1/B7-H1.
    Anti-Mouse PD-L1/B7-H1 (LALA-PG) Antibody (10F.9G2)
  • HY-120402
    BMS-200
    		Inhibitor
    BMS-200 is a potent PD-1/PD-L1 interaction inhibitor with an IC50 of 80 nM. BMS-200 can induce dimerization of PD-L1.
    BMS-200
Cat. No. Product Name / Synonyms Application Reactivity