Open AccessSTUDY OF CELL DEATH IN FRIEND LEUKAEMIA
Author(s) -
SmadjaJoffe F.,
Klein B.,
Kerdiles C.,
Feinendegen L.,
Jasmin C.
Publication year - 1976
Publication title -
cell proliferation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.647
H-Index - 74
eISSN - 1365-2184
pISSN - 0960-7722
DOI - 10.1111/j.1365-2184.1976.tb01261.x
Subject(s) - biology , immunology
Cell death of splenic Friend leukaemic cells has been studied in vivo , using 125 I‐UdR and 3 H‐TdR pulse labelling. The evolution of the splenic specific activity has been measured by autoradiography and external counting during 40 hr after injection of the labelled precursor. These two techniques show the existence of a large reutilization of 3 H‐TdR (50%), which is measurable as soon as 7 hr after the injection. The DNA turnover rate is rapid, 83‐8 % of the splenic cellular DNA being renewed per day. These results confirm that most of the cells produced in the Friend leukaemic spleen are rapidly lost; they also demonstrate that this cell loss is mainly due to a massive death, which occurs in proerythroblastic and erythroblastic compartments after one or two cell divisions. Friend leukaemic cells, which are characterized by a limited capacity of proliferation and a short lifespan, do not appear to be malignant.