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101.
S. Z. Sapozhnikov V. Yu. Mityakov A. V. Mityakov S. A. Mozhaĭskiĭ 《Technical Physics Letters》2008,34(10):815-817
New gradient-type heat flux sensors (GHFSs) are created, the thermal stability of which is increased due to the use of refractory
metals and alloys forming a heterogeneous layered macrostructure. The new GHFSs allow the heat flux measurements to be performed
at temperatures up to 1300 K. 相似文献
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Julia D. Vavilova Anna A. Boyko Natalya V. Ponomareva Vitaly F. Fokin Ekaterina Y. Fedotova Maria A. Streltsova Sofya A. Kust Maria V. Grechikhina Ekaterina V. Bril Olga S. Zimnyakova Elena I. Kovalenko Alexander M. Sapozhnikov 《International journal of molecular sciences》2021,22(23)
Immunosenescence is a process of remodeling the immune system under the influence of chronic inflammation during aging. Parkinson’s disease (PD) is a common age-associated neurodegenerative disorder and is frequently accompanied by neuroinflammation. On the other hand, cytomegalovirus (CMV), one of the most spread infections in humans, may induce chronic inflammation which contributes to immunosenescence, differentiation and the inflation of T cells and NK cells. Currently, there is no clear understanding of immunosenescence severity in PD patients infected with CMV. In this study, we analyzed differentiation stages and immunosenescence characteristics of T cells and NK cells in 31 patients with mild and moderate PD severity, 33 age-matched and 30 young healthy donors. The PD patients were 100% CMV-seropositive compared to 76% age-matched and 73% young CMV-infected healthy donors. The proportion of effector memory T cells re-expressing CD45RA, CD57+CD56− T cells and CD57+CD56+ T cells was significantly reduced in PD patients compared with CMV-seropositive age-matched healthy individuals. The CD57+CD56− T cell proportion in PD patients was similar to that of CMV-seropositive young healthy donors. Thus, PD is characterized by reduced peripheral blood T cell immunosenescence, even against the background of CMV infection. 相似文献
103.
Anastasia I. Palamarchuk Nadezhda A. Alekseeva Maria A. Streltsova Maria O. Ustiuzhanina Polina A. Kobyzeva Sofya A. Kust Maria V. Grechikhina Anna A. Boyko Olga A. Shustova Alexander M. Sapozhnikov Elena I. Kovalenko 《International journal of molecular sciences》2021,22(24)
Nowadays, the use of genetically modified NK cells is a promising strategy for cancer immunotherapy. The additional insertion of genes capable of inducing cell suicide allows for the timely elimination of the modified NK cells. Different subsets of the heterogenic NK cell population may differ in proliferative potential, in susceptibility to genetic viral transduction, and to the subsequent induction of cell death. The CD57−NKG2C+ NK cells are of special interest as potential candidates for therapeutic usage due to their high proliferative potential and certain features of adaptive NK cells. In this study, CD57− NK cell subsets differing in KIR2DL2/3 and NKG2C expression were transduced with the iCasp9 suicide gene. The highest transduction efficacy was observed in the KIR2DL2/3+NKG2C+ NK cell subset, which demonstrated an increased proliferative potential with prolonged cultivation. The increased transduction efficiency of the cell cultures was associated with the higher expression level of the HLA-DR activation marker. Among the iCasp9-transduced subsets, KIR2DL2/3+ cells had the weakest response to the apoptosis induction by the chemical inductor of dimerization (CID). Thus, KIR2DL2/3+NKG2C+ NK cells showed an increased susceptibility to the iCasp9 retroviral transduction, which was associated with higher proliferative potential and activation status. However, the complete elimination of these cells with CID is impeded. 相似文献
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Sapozhnikov S. Z. Mityakov V. Yu. Mityakov A. V. Subbotina V. V. 《Technical Physics Letters》2019,45(3):253-255
Technical Physics Letters - The process of subcooled water boiling is qualitatively described based on data obtained using gradient heat flux measurement. The proposed method was used for the first... 相似文献
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