ANV600 is a novel PD-1 targeted IL-2Rβγ agonist that selectively expands tumor antigen-specific T cells and potentiates PD-1 checkpoint inhibitor therapy.

ABSTRACT:

Background

Combining interleukin-2 (IL-2) agonism with programmed cell death protein 1 (PD-1) checkpoint inhibition has shown synergistic potential in reinvigorating antitumor T cell responses. However, integrating these two mechanisms within a single molecule has been challenging due to competing requirements for PD-1 engagement and IL-2 receptor signaling. ANV600 is a novel bispecific antibody-cytokine fusion protein that targets a non-blocking epitope on PD-1, enabling cis-targeted IL-2Rβγ agonism while preserving combinability with therapeutic PD-1 inhibitors. This design allows for selective expansion of tumor antigen-specific T cells while avoiding the systemic toxicity and regulatory T cell (Treg) expansion associated with conventional IL-2 therapies.

Methods

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SUBMITTER: Murer P 

PROVIDER: S-EPMC12265831 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature