IL-1α Expands SLC2A1highSPP1highIFNlow Myeloid Cells to Drive Immune Escape and Malignant Transformation of Precancers.

IL-1α drives expansion of SLC2A1highSPP1highIFNlow myeloid cells, promoting immune escape and malignant transformation in pre-cancerous head and neck lesions.

• Why it matters: Understanding how immune suppression occurs early in cancer development can reveal targets to prevent malignant progression. This work addresses the gap in knowledge about immune cell states that facilitate tumor escape in precancerous stages.
• What they did: Using a genetically engineered mouse model with Sox2 amplification, the study examined myeloid cell populations, their gene expression profiles, and responses to IL-1α signaling, focusing on early immune changes.
• The result: Blocking IL-1 signaling reduced suppressive myeloid subsets, enhanced immune surveillance, and prolonged survival, highlighting IL-1α’s role in establishing an immune-escape program that enables tumor progression.