[Radiosensitivity of hematopoietic stroma precursor cells from long-term bone marrow cultures]

Radiosensitivity of hemopoietic stroma precursors from long-term bone marrow culture was measured by implantation of adherent cell layer under renal capsule of syngeneic mice. D0 was 4.86 +/- 0.15 Gy and n was 2.4, i.e. radiosensitivity of cultured cells was nearly the same as that of stromal precursors from fresh bone marrow.