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Expression of the apoptosis-releated genes in patients with newly diagnosed chronic lymphocytic leukemia in clinical data context

https://doi.org/10.17650/1726-9784-2018-17-2-41-46

Abstract

Introduction. The given data of fundamental studies of apoptosis processes in B-cell lymphocytic leukemia (B-CLL) testifies about the complexity and variety of mechanisms affecting the kinetics of normal cells and tumor lymphocytes in this disease. It is important to study the severity of clinical manifestations of the disease depending on the expression of the genes that modulate apoptosis.

The purpose of the study is to compare the activity of genes encoding apoptosis modulators, the cell cycle and cancer-testicular PRAME protein with clinical manifestations of the disease in primary patients with B-CLL.

Materials and methods. The level of expression of the proapoptotic genes FAS, TRAIL, TNFR2, DR4/5 and DR3, as well as the HSP27, XIAP genes, blocking apoptosis was determined in 23 patients with newly diagnosed chronic B-CLL. In addition, expression of genes TP53 and P21 and cancer-testis gene PRAME are tested.

Results. According to the multivariate regression analysis, the FAS gene expression in the onset of the disease had the greatest impact on the clinical characteristics of the disease. In this connection, the patients were divided into groups with normal (group) and low gene level (group II). A low level of FAS expression (Me 387 %) was associated with stage II disease (p = 0.03), a large number of lympho cytes (p = 0.001), fewer erythrocytes (p = 0.08), and a lower level of TNFR2 gene expression (p = 0.08), high level of expression of XIAP, HSP27, P21. Overall, the anti-apoptotic potential in Group II patients was higher, which was accompanied by more pronounced clinical manifestations of the disease.

Conclusions. The increased anti-apoptotic potential of tumor lymphocytes in newly diagnosed B-CLL is accompanied by a larger tumor mass and greater clinical and hematological manifestation of the disease.

About the Authors

S. G. Zakharov
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



A. K. Golenkov
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



A. V. Misyurin
N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
Russian Federation

24 Kashirskoe Shosse, Moscow 115478



E. V. Kataeva
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



A. A. Rudakova
N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
Russian Federation

24 Kashirskoe Shosse, Moscow 115478



M. A. Baryshnikova
N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
Russian Federation

24 Kashirskoe Shosse, Moscow 115478



T. A. Mitina
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



E. V. Trifonova
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



L. L. Vysotskaya
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



Yu. B. Chernykh
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



E. F. Klinushkina
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



K. A. Belousov
MONIKI
Russian Federation

bldg. 1, 61/2 Shchepkina St., Moscow 129110



Yu. P. Finashutina
N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
Russian Federation

24 Kashirskoe Shosse, Moscow 115478



V. A. Misyurin
N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
Russian Federation

24 Kashirskoe Shosse, Moscow 115478




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Review

For citations:


Zakharov S.G., Golenkov A.K., Misyurin A.V., Kataeva E.V., Rudakova A.A., Baryshnikova M.A., Mitina T.A., Trifonova E.V., Vysotskaya L.L., Chernykh Yu.B., Klinushkina E.F., Belousov K.A., Finashutina Yu.P., Misyurin V.A. Expression of the apoptosis-releated genes in patients with newly diagnosed chronic lymphocytic leukemia in clinical data context. Russian Journal of Biotherapy. 2018;17(2):41-46. (In Russ.) https://doi.org/10.17650/1726-9784-2018-17-2-41-46

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ISSN 1726-9784 (Print)
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