C57BL/6/J and LysM-Cre (B6.129p2-Lyz2tm1(cre)lfo/J) mice were purchased from Jackson Laboratory and housed in the animal facility of University of Lausanne. Macrophage-specific Cas9 knock-in were generated as previously described29 (link). Macrophage-specific XBP1 Knockout mice were generated by crossing LysM-Cre mice (myeloid-specific overexpression of Cre recombinase) with XBP1fl/fl mice. Macrophages-specific Lpcat3 knockout mice were generated by crossing LysM-Cre mice with Lpcat3fl/fl mice53 (link). BRafCA; Tyr::CreER; Ptenlox4-5 (Braf/PTEN) was obtained from M. Bonsenburg at Yale University. Bone marrow of Mincle-knockout mice was provided by David Sancho54 (link). All experiments were performed in accordance with Swiss federal regulations and procedures ethically approved by veterinary authority of Canton Vaud.