Fig. 2.
Spontaneous proplatelet formation by megakaryocytes in methylcellulose culture medium. Peripheral blood CD34+cells were cultured with 10 ng/mL TPO and 10 ng/mL SCF in 35-mm plastic dishes. On day 9 of the culture, megakaryocytes with spontaneous proplatelet formation were observed under an inverted microscope (bar, 50 μm).