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Biomedical subjects

L M Mentkevich

Publications and source records attributed to L M Mentkevich.

At least 19 recordsLinked to original sources

Stimulation by calcium chloride of virus-induced interferon formation by blood, haemopoietic organ and continuous human cells.

Calcium chloride stimulated virus-induced production of leukocyte interferon by human and animal blood and haemopoietic organ cells. CaCl2 treatment of surviving cells (leukocytes, human and mouse bone marrow) and Namalva cells was the most effective when carried out simultaneously with adsorption of the virus-inducer or when CaCl2 pretreatment was combines with its subsequent addition together with the virus-inducer. Optimal CaCl2 concentrations were 5 mM for human bone marrow cells and 10 mM for human leukocytes and mouse bone marrow cells. CaCl2 treatment was equivalent to priming in case of interferon induction in human leukocytes and, as distinct from priming, it considerably increased virus-induced interferon production by Namalva cells.

Animals↗

The course of influrenza infection in mice with graft-versus-host reaction.

The course of influenza infection in mice with a developed graft-versus-host reaction (GVHR) was changed. Due to disturbances in the inflammatory process the pneumonia was delayed and less marked. Consequently, the infected mice died later than controls. Influenza virus reproduction in the lungs was more intensive and its persistence more prolonged. Interferon production in the lungs of mice with GVHR was similar to that in the controls.

Animals↗

[Suppression of interferon synthesis during the "graft-versus-host" reaction in F1(CBAXC57BL/6) mice].

The development of the graft-versus-host reaction (GVHR) in the F1(1CBA X C57BL/6 hybrid mice after the transplantation of spleen cells from the C57BL/6 parent donor resulted in a strong inhibition of the serum interferon production induced by the intraperitoneal injection of the Newcastle disease virus. In vitro with the mouse bone marrow cells during the development of the GVHR the interferon response was first reduced and then disappeared completely. The described phenomenon could therefore serve as an index of the development of the GVHR.

Animals↗

[Bone marrow interferon].

The nucleated cells of the bone marrow of mouse, rat, guinea pig, chick, cattle and humans proved to be capable of producing interferon in vitro following induction with the Newcastle disease virus. The production of interferon by these cells was characterized by high stability. The bone marrow interferon was not inferior in its activity to the corresponding interferon prepared with the blood leukocytes or splenic cells.

Animals↗