This video describes an in vitro method for generating macrophages from human induced pluripotent stem cells (iPSCs). Macrophage generation from iPSCs occurs in three stages: (i) aggregation of iPSCs in suspension to form three-dimensional embryoid bodies (EBs) that differentiate into mesodermal cells, (ii) formation of macrophage precursor cells from the differentiated EBs, and (iii) differentiation of the macrophage precursor cells into mature, functional macrophages.
Protocol
1. Human iPSC Differentiation to Macrophages NOTE: A schematic summary of the macrophage differentiation protocol is depicted in Figure 1. Preparing cell differentiation growth factors and other reagents Prepare human embryonic stem cell-serum-free media (hESC-SFM; see Table of Materials) by supplementing Dulbecco's modified Eagle medium-F12 (DMEM/F12) with hESC supplement, 1.8% w/v…
Representative Results
Figure 1: Graphic summary of iPSC differentiation to mature functional macrophages. Diagram drawn with Biorender. Figure 2: iPSC differentiation towards macrophages and iPSC-DM number and morphology. (A) Bright Field images obt…