Acod1 Expression in Cancer Cells Promotes Immune Evasion through the Generation of Inhibitory Peptides
James H. Schofield,
Joseph Longo,
Ryan D. Sheldon
et al.
Abstract:Targeting PD-1 is an important component of many immune checkpoint blockade (ICB) therapeutic approaches. However, ICB is not an efficacious strategy in a variety of cancer types, in part due to immunosuppressive metabolites in the tumor microenvironment (TME). Here, we find that anti-PD-1-resistant cancer cells produce abundant itaconate (ITA) due to enhanced levels of aconitate decarboxylase (Acod1). Acod1 has an important role in the resistance to anti-PD-1, as decreasing Acod1 levels in anti-PD-1 resistant… Show more
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