[Blast cell differentiation of a continuous human leukemia line as affected by dimethyl sulfoxide]. / Differentsirovka blastnykh kletok perevivaemoi linii leikoza cheloveka pod deistviem dimetilsul'foksida.

The human blast cells line L-101 isolated from blood leukocytes of the patient with the cutaneous erythromyeloleukemia in the media with dimethyl-sulfoxide (DMSO) and maintained by permanent cultivation stimulate myeloid differentiation of this cells. The number of differentiated cells depends on DMSO concentration. Maximum of differentiated cells (up to 75%) have exposed on the 6th day of incubation with 0,75% DMSO. The cell line L-101 is a suitable model for investigation of myeloid differentiation.

A rise in activity of natural cold isolymphocytotoxins after hemostimulation.

Natural cold isolymphocytotoxins (NCILCT) were studied in sera of patients with chronic renal insufficiency who had undergone 3-200 hemodialyses, in sera of healthy subjects before and after intramuscular injections of 5-9 ml of whole autologous blood, and in sera of hemophilia patients before and after a transfusion of 130-250 ml of freshly drawn donor plasma concentrate. It was noted NCILCT activity rose from 20-50% to 50-100% dead cells after injections of autologous blood and plasma transfusions in the majority of cases. In subjects who had undergone hemodialysis from 50 to 200 time NCILCT activity was considerably higher (50-80% dead cells) compared to patients with 3-10 hemodialyses (20-30% dead cells). It was suggested that the graft protection effect of blood transfusions and hemodialysis on kidney graft may be associated with an increase in NCILCT activity.

[Increase in the level of cold lymphocytotoxins in the blood serum after autohemostimulation]. / Povyshenie urovnia kholodnyky limfotsitotoksinov v syvorotke krovi posle autogemostimuliatsii.

Activity of natural cold isolymphocytotoxins (NCILCT) was studied in the serum of 16 volunteers who received whole auto blood injections. Autohemostimulation was shown to result in the increased activity of NCILCT. The evidence obtained allowed the conclusion that autohemostimulation can be used for preparation of active NCILCT test sera.