Cells Capable of Colony Formation in the Peripheral Blood of Man

Science  22 Jan 1971:
Vol. 171, Issue 3968, pp. 293-294
DOI: 10.1126/science.171.3968.293


Colony-forming cells have been found in the peripheral blood of man and have been grown in vitro by use of a soft agar gel technique. It has been possible to collect these cells with a blood-cell separator in numbers similar to those found in the peripheral circulation. Repeat leukapheresis of the same donor does not reduce the number of circulating colony-forming cells.