O. I. Krifuks

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The search for a suitable and reliable animal model for human AIDS that is easy to use on a large scale continues. Here we describe a new condition in mice that closely resembles human AIDS, namely, chronic lymphoproliferation with dramatic depletion of CD4-positive cells, progressive impairment of the immune responses, and Kaposi's sarcoma-like tumors or(More)
The involvement of protein kinases and phosphatases in the down-modulation of expression of CD4 molecules on peripheral blood lymphocytes (PBL) by gangliosides was studied. Exposure of PBL either to genistein or to H7 practically abolished the down-modulation of CD4 induced by GM1 and diminished their susceptibility to CD4+ down-modulation by exposure to(More)
The receptors (FcR, C3R) and functional activity, determined by the nitroblue tetrazolium (NRT) test, of polymorphonuclear leukocytes (PML) of low and normal density were studied in erysipelas patients. The leukocytes were obtained by sedimentation on the 2-stage gradient of Ficoll-Verographin (1.077 and 1.119 g/cu cm). No statistically significant(More)
A simple method for the assessment of the body sensitization has been developed, with peripheral blood neutrophils acting as the test system. The method consists in scintillation of the neutrophil count among the cells of the interphase ring obtained by centrifugation of 1:1 diluted peripheral blood in verografin density gradient, 1.077 g/cm3, after blood(More)
8. M. Mackett, G. L. Smith, and B. Moss, DNA Cloning: A Practical Approach, ed. by D. M. Glover, Vol. 2, Oxford (1985), pp. 191-211. 9. M. Nakanishi, T. Uchida, H. Sugawa, etal., Exp. Cell Res., 159, 399 (1985). I0. L. Ratner, W. Haseltlne, R. Patarka, et al., Nature, 313, 277 (1985). ii. G. L. Smith and B. Moss, Gene, 25, 21 (1983). 12. E. Southern, J.(More)
We have shown a new phenomenon demonstrating that BALB/c female mice mated to C57BL/6 males during a year (7-10 pregnancies) develop AIDS-like disease or acute leukemia after an additional immunization with fixed ConA activated paternal (C57BL/6) lymphocytes. The AIDS-like disease is sexually and vertically transmissible and easily transferable to intact(More)
The "skin window" test with phytohemagglutinin and pyrogenal reveals the multiple character of disturbances in the cooperative interaction of dermal T-lymphocytes and macrophages in patients with clinical forms of erysipelas, which indicates the necessity of differentiated immunological correction.
The reaction of antigen-dependent E-rosette formation with the hemolytic streptococcal antigen in erysipelas patients is indicative of the ambiguous role of the specific immunological transformation of the body in respect of the infective agent antigens in different clinical forms of the disease and is of prognostic importance as regards the chronic(More)