Tumor-Infiltrating Myeloid Cells Confer De Novo Resistance to PD-L1 Blockade through EMT-Stromal and Tgfβ-Dependent Mechanisms.
Haocheng YuJohn P SfakianosLi WangYang HuJorge DazaMatthew D GalskyHarkirat S SandhuOlivier ElementoBishoy Morris FaltasAdam M FarkasNina BhardwajJun ZhuDavid J MulhollandPublished in: Molecular cancer therapeutics (2022)
Most patients with bladder cancer do not respond to ICB targeting of the PD-L1 signaling axis. Our modeling applied a de novo resistance signature to show that tumor-infiltrating myeloid cells promote poor treatment response in a TGFβ-dependent mechanism.