Fig. 8.
Ploidy MKs release more platelets than diploid MKs.
(A) MKs from PB culture were sorted on the basis of the cell size at day 8. The R1 obtained population (∼10%) was recultured in serum-free medium in the presence of TPO (100 ng/mL). (B) Morphology of the megakaryocytic-sorted fraction after Wright-Giemsa staining (Bar = 30 μm). (C) ▪: percentage of proplatelets forming MKs on PB-R1 fraction and day 12 CB-derived MKs. ■: platelets produced by the same populations were enumerated at days 12 and 14, respectively. (See also “Materials and methods” and “Results.”)