A. Timeline of human iPSC differentiation into late stage cardiac myocytes (days 0, 3, 5, 7, 14, 30, 60, 120, and 180) with corresponding gene activation as measured by PCR (n = 3). Error bars are standard deviation. Flow chart relates culture time with media, supplement, and cell type.
B. Immunofluorescence staining on differentiated cells isolated between days 30–60 for cardiac markers α-actinin, troponin T, and myosin heavy chain (MHC). Scale bars, 50 μm.
C. Flow cytometry analysis of a representative culture of human iPS-derived cardiac myocytes positive for α-actinin (left) and troponin T (right), isolated between days 30–60 post-differentiation.