Abstract
Study of disease-relevant immune cells, namely monocytes and macrophages, is limited based on availability of primary tissue, a limitation that can be remedied using human induced pluripotent stem cell (hiPSC) technology. Here, we present a protocol for differentiation of monocytes and macrophages from hiPSCs. We describe steps for hiPSC maintenance, mesoderm lineage induction, hematopoietic progenitor cells (HPCs) commitment and expansion, and myeloid lineage induction. We then detail procedures for monocyte formation and functional macrophage formation and polarization. For complete details on the use and execution of this protocol, please refer to Chen et al.1.