• A novel therapeutic anti-CD39 antibody that enhances anti-tumor immunity by ameliorating the immunosuppressive tumor microenvironment
  • CD39 degrades extracellular adenosine-triphosphate (eATP), a molecule intimately involved in immune-activation and modulates the immunological state in the tumor microenvironment (TME)
  • CD39 is highly expressed on immune cells and in hematological and solid tumors and is associated with poor prognosis


BP1202 is a humanized anti-CD39 therapeutic antibody developed by BrightPath. It has a high affinity and specificity to CD39, and potently inhibits the enzymatic activity of CD39, thereby regulating the balance of eATP and adenosine (Ado) in the TME, preventing immunosuppression and enhancing anti-tumor activity.

While eATP is pro-inflammatory and induces immune responses via the ATP receptor and inflammasome, its degradation product Ado is immunosuppressive by diminishing T cell activation and cytokine production. CD39 is highly expressed on various types of immune cells in the TME, including tumor cells, exhausted T cells, regulatory T cells (Treg), macrophages, and dendritic cells, and degrades eATP to Ado through the concerted action with CD73. Due to the effects of eATP and Ado, CD39 regulates a variety of immune responses in the TME by balancing eATP and immunosuppressive Ado. It has been reported that high CD39 expression in the TME is associated with poor prognosis in many hematological and solid tumors, suggesting a role in tumor progression.

BP1202-NF2, a novel ADCC-enhancing CD39 antibody, induces destruction of regulatory T cells and enhances cytotoxic T lymphocytes induction

SITC 2022


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