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-P9993
    Peresolimab
    		Activator 99.62%
    Peresolimab is a humanized IgG1-κ antibody targeting to PD-1. Peresolimab potentially stimulates physiological immune inhibitory pathways to restore immune homeostasis. Peresolimab can be used in research of rheumatoid arthritis.
    Peresolimab
  • HY-177439
    HLX43
    		Inhibitor 99.60%
    HLX43 is an antibody-drug conjugate (ADC) targeting PD-L1. HLX43 consists of a human monoclonal antibody anti-PD-L1 antibody Opucolimab (HY-P99785) with the drug-linker conjugate being DL-01 (HY-155870A). HLX43 exerts superior anticancer efficacy with safety profile in vivo. HLX43 can be used for non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), esophageal squamous cell carcinoma (ESCC), melanoma (MEL), ovarian cancer (Ovc) research.
    HLX43
  • HY-B0008
    Sulindac
    		Modulator 99.68%
    Sulindac (MK-231) is an orally active nonsteroidal anti-inflammatory agent. Sulindac also is an immunomodulatory agent. Sulindac can be used for the research of arthritis of the spine, gouty arthritis and kinds of cancer including colorectal cancer (CRC) and lung cancer.
    Sulindac
  • HY-P99048
    Sintilimab
    		Inhibitor 99.1%
    Sintilimab (IBI308) is a safe and effectivel humanized IgG4 monoclonal antibody that binds to PD-1 with a KD value of 74 pM. Sintilimab blocks the interaction of PD-1 with its ligands (PD-L1 and PL-L2), consequently helping to restore the endogenous antitumour T-cell response. Sintilimab combined with prebiotics inhibits tumor volume and regulates immune cell subpopulation balance in lung adenocarcinoma mice. Sintilimab can be used for the research of classical Hodgkin's lymphoma, non-small cell lung cancer and oesophageal cancer.
    Sintilimab
  • HY-P9978
    Toripalimab
    		Inhibitor 99.30%
    Toripalimab is a selective, recombinant, humanized monoclonal antibody against PD-1. Toripalimab is able to bind to PD-1 and block the interaction with its ligands. Toripalimab has exhibited primary anti-tumor effects in tumors such as melanoma, lung cancer, digestive tract tumors, hepatobiliary and pancreatic tumors, neuroendocrine neoplasms, nasopharyngeal carcinoma and urothelial carcinoma.
    Toripalimab
  • HY-P99115
    Envafolimab
    		Inhibitor 99.77%
    Envafolimab (ASC 22; KN 035) is a recombinant protein of a humanized single-domain anti- PD-L1 antibody. Envafolimab is created by a fusion of the of anti-PD-L1 domain with Fc fragment of human IgG1 antibody. Envafolimab blocks interaction between PD-L1 and PD-1 with an IC50 value of 5.25 nM. Envafolimab has the potential for the research of solid tumors.
    Envafolimab
  • HY-P990788
    Anti-Mouse PD-1 Antibody (29F.1A12)
    		Inhibitor 99.01%
    Anti-Mouse PD-1 Antibody (29F.1A12) is a rat-derived IgG2a κ type antibody inhibitor, targeting to mouse PD-1. Anti-Mouse PD-1 Antibody (29F.1A12) blocks the binding of PD-1 to its two ligands, PD-L1 and PD-L2. Anti-Mouse PD-1 Antibody (29F.1A12) can be used for the researches of cancer and immunology, such as CT26 tumor and pancreatic cancer.
    Anti-Mouse PD-1 Antibody (29F.1A12)
  • HY-P991097
    Pumitamig
    		Inhibitor 99.6%
    Pumitamig (PM-8002, BNT-327) is a bispecific antibody targeting PD-L1 and VEGF-A, with immune activation and anti-angiogenic activities. By binding to PD-L1, Pumitamig restores the function of effector T cells, while neutralizing VEGF-A in the tumor microenvironment to reverse its inhibition on the infiltration and activation of immune cells and normalize tumor blood vessels. Pumitamig can also be combined with various ADCs targeting TROP2, B7H3, HER2, HER3 for the research of advanced/metastatic solid tumors, including non-small cell lung cancer, ovarian cancer, triple-negative breast cancer, cervical cancer, etc. Pumitamig also exhibits potential efficacy in "cold" tumors with low PD-L1 expression that are insensitive to immunotherapy.
    Pumitamig
  • HY-P99144A
    Anti-Mouse PD-1 Antibody (S-5001)
    		Inhibitor 99.50%
    Anti-Mouse PD-1 Antibody (S-5001) is a selective inhibitor targeting PD-1, blocking the PD-1/PD-L1 immune checkpoint axis through competitive binding to PD-1. Anti-Mouse PD-1 Antibody (S-5001) works by reversing the tumor immunosuppressive microenvironment and reactivating the anti-tumor activity of cytotoxic T lymphocytes. It can be used in research on tumors such as melanoma and HPV-positive oropharyngeal squamous cell carcinoma. Anti-Mouse PD-1 Antibody (S-5001) is often combined with photothermal therapy, chemotherapy, etc., to enhance efficacy.
    Anti-Mouse PD-1 Antibody (S-5001)
  • HY-P99117
    Cadonilimab
    		Inhibitor 99.87%
    Cadonilimab (AK104) is a humanized tetravalent IgG1 bispecific antibody targeting PD1/CTLA4. Cadonilimab blocks both PD-1 and CTLA-4 pathways, thereby relieving their corresponding immunosuppressive effects and reversing tumor specific T cell exhaustion. Cadonilimab significantly downregulates Fc-mediated effector functions, including antibody-dependent cell-mediated cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP), complement dependent cytotoxicity (CDC). Cadonilimab can be used for research of metastatic cervical cancer, as well as other malignancies such as gastric cancer, GEJ adenocarcinoma and non-small cell lung cancer (NSCLC).
    Cadonilimab
  • HY-150617
    Lartesertib
    		99.94%
    Lartesertib (M4076) is an inhibitor of the serine/threonine protein kinase ATM with high potency. Lartesertib can inhibit the growth of multiple hematopoietic cell lines. Additionally, when combined with the ATR inhibitor Tuvusertib (HY-111451), Lartesertib can promote the death of tumor cells, activate the immune signaling pathway, and exhibit anti-tumor activity.
    Lartesertib
  • HY-P9971
    Camrelizumab
    		Inhibitor 98.80%
    Camrelizumab (SHR-1210) is a potent humanied high-affinity IgG4-κ monoclonal antibody (mAb) to PD-1. Camrelizumab binds PD-1 at a high affinity of 3 nM and inhibits the binding interaction of PD-1 and PD-L1 with an IC50 of 0.70 nM. Camrelizumab acts as anti-PD-1/PD-L1 agent and can be used for cancer research, including NSCLC, ESCC, Hodgkin lymphoma, and advanced HCC et,al.
    Camrelizumab
  • HY-P5005
    VIPhyb
    		Activator 99.82%
    VIPhyb is a vasoactive intestinal polypeptide (VIP) receptor antagonist. VIPhyb can inhibit VIP signaling, increase T-cell immunity and downregulate PD1. VIPhyb can inhibit cancer cell proliferation. VIPhyb can reduce inflammatory cytokine expression. VIPhyb can enhance viral clearance. VIPhyb can be used for the researches of cancer, infection and inflammation and immunology, such as non-small cell lung cancer (NSCLC), cytomegalovirus infection and colitis.
    VIPhyb
  • HY-108730A
    Avelumab (anti-PD-L1)
    		Inhibitor
    Avelumab (anti-PD-L1) a fully human IgG1 anti-PD-L1 monoclonal antibody (mAb) with potential antibody-dependent cell-mediated cytotoxicity (ADCC). Avelumab (anti-PD-L1) enhances ADCC on several cancer cell lines expressing PD-L1. Avelumab (anti-PD-L1) can be used for the study of chordoma.
    Avelumab (anti-PD-L1)
  • HY-P99203
    Cemiplimab
    		Inhibitor 99.89%
    Cemiplimab (Anti-Human PD-1) is a high-affinity programmed death receptor-1 (PD-1) monoclonal IgG4 antibody that blocks PD-1/PD-L1-mediated T-cell suppression. Cemiplimab is commonly used in squamous cell skin cancer research.
    Cemiplimab
  • HY-P10091
    CD24/Siglec-10 blocking peptide, CSBP
    		Inhibitor 98.91%
    CD24/Siglec-10 blocking peptide, CSBP can not only block the interaction of CD24/Siglec-10 but also PD-1/PD-L1. CD24/Siglec-10 blocking peptide, CSBP can induce the phagocytosis of tumor cell.
    CD24/Siglec-10 blocking peptide, CSBP
  • HY-102011
    BMS-1166
    		Inhibitor 99.49%
    BMS-1166 is a potent PD-1/PD-L1 immune checkpoint inhibitor. BMS-1166 induces dimerization of PD-L1 and blocks its interaction with PD-1, with an IC50 of 1.4 nM. BMS-1166 antagonizes the inhibitory effect of PD-1/PD-L1 immune checkpoint on T cell activation.
    BMS-1166
  • HY-P9919A
    Durvalumab (anti-PD-L1)
    		Inhibitor 99.0%
    Durvalumab (anti-PD-L1)(MEDI 4736) is a human anti-PD-L1 protein monoclonal antibody. Durvalumab (anti-PD-L1) completely blocks PD-L1 binding to PD-1 and CD80, IC 50 are 0.1 and 0.04 nM respectively, has anti-tumor activity.
    Durvalumab (anti-PD-L1)
  • HY-171821
    PF-08046054
    		Inhibitor
    PF-08046054 (SGN-PDL1V) is a PD-L1-directed Antibody-drug conjugate (ADC), which is comprised of an anti-PD-L1 antibody conjugated to VcMMAE (HY-15575). PF-08046054 is direct cytotoxicity to PD-L1-expressing tumor cells via the intracellular delivery of MMAE. PF-08046054 can be used for the study of solid tumors
    PF-08046054
  • HY-P991740
    IBI-363
    		Inhibitor 99.60%
    IBI-363 is a PD-1/IL-2 bispecific antibody with functions of blocking the PD-1/PD-L1 pathway and activating the IL-2 pathway. The IL-2 arm of IBI-363 retains affinity for IL-2Rα but attenuates binding ability to IL-2Rβ and IL-2Rγ to reduce toxicity. The PD-1 binding arm of IBI-363 enables PD-1 blockade and selective delivery of IL-2. IBI-363 can be used in cancer research, such as non-small cell lung cancer.
    IBI-363
Cat. No. Product Name / Synonyms Application Reactivity