scholarly journals Enzymatic characterization of blood lymphocytes in various clinical and pathogenetic variants of respiratory allergy

2021 ◽  
Vol 23 (1) ◽  
pp. 107-116
Author(s):  
A. M. Lazareva ◽  
O. A. Kolenchukova ◽  
S. V. Smirnova

Allergy is a sufficient social and economic issue of modern times. Altered immunity in allergic disorders is based, mainly, on the lymphocyte disturbances.Immune characteristics depend both on populations and subpopulational profile of immune cells, and on intrinsic intensity and specific features of theirintracellular metabolism. Interest to studies of intracellular metabolism of lymphocytes id determined by high-scale energetic and plastic processes aimed for support of immune homeostasis. The aim of this study was to evaluate the state of intracellular metabolism in peripheral blood lymphocytes from the patients with respiratory allergies of different genesis and respiratory affection.The study included patients with various clinical variants of respiratory allergy (n = 152) at the age of 21 to 63 years old, and virtually healthy blood donors (n = 209), comparable for age and sex. Within these cohorts, we have separately analyzed, e.g., respiratory atopy (atopic rhinosinusitis and atopic bronchial asthma), as well as respiratory pseudoatopy (polypous rhinosinusitis and asthmatic triad). Allergic disorders of upper respiratory ways were diagnosed in a complex clinical examination by allergologist/immunologist and otorhinolaryngologists. Bronchial asthma verification was based on current GINA criteria (2014). We used m standard common clinical methods and specific allergological diagnostics, e.g., allergological anamnesis, skin prick tests, with different non-infectious allergens, measurement of total and specific IgE’s with ELISA method. The parameters of intracellular metabolism of peripheral blood lymphocytes were determined with bioluminescent technique with bacterial luciferase. Actifity of NAD(P) and NAD(P)H enzymes was measured.Dehydrogenase activities in lymphocytes were expressed as enzyme un its (EU, 1 unit = 1 mcmol/min) per 104 cells.Certain changes of intracellular activities in peripheral lymphocytes are revealed, dependent on genesis and origin of allergic inflammation, and affection level of respiratory ways. In respiratory atopy (atopic rhinosinusitis and atopic bronchial asthma), irrelevant on the level of respiratory affection, the activities of intracellular enzymes suggest increased plastic processes that are maximally pronounced in atopic bronchial asthma. In respiratory pseudoatopy (polypous rhinosinusitis and asthmatic triad) the metabolic changes of lymphocytes presume activation of both plastic and energetic processes, with decreased intensity in asthmatic triad condition. Independent on genesis of respiratory allergic inflammation, we have determined low activity of NAD(P)-dependent glutamate dehydrogenase, and NAD(H)-dependent lactate dehydrogenase in allergic inflammation of upper respiratory ways (atopic rhinosinusitis and polypous). Its activity is statistically higher in bronchial asthma (atopic bronchial asthma and asthmatic triad.

1991 ◽  
Vol 111 (1) ◽  
pp. 58-61 ◽  
Author(s):  
P. V. Sergeev ◽  
A. S. Dukhanin ◽  
S. I. Ogurtsov ◽  
F. I. Abazova ◽  
V. V. Omel'yanovskii ◽  
...  

2007 ◽  
pp. 41-46
Author(s):  
I. V. Demko ◽  
A. B. Salmina ◽  
A. V. Morgun ◽  
N. A. Malinovskaya

P-glycoprotein (Pgp) is a membrane transporter of hydrophobic molecules providing efflux of xenobiotics from the cytosole outside the cell. In epithelial cells, Pgp is thought to be responsible for resistance to steroids. Severe bronchial asthma (SBA) is a heterogenous disease characterized by resistance to and dependence on steroids. The goal of this study was to assess expression of Pgp on peripheral blood lymphocytes in severe bronchial asthma and to evaluate the role of Pgp in developing the resistance to glucocorticoid therapy (GC). Assessment of Pgp expression revealed difference in response to GC treatment. All the patients were susceptible to GC, however, the time of therapeutic effect appearance and the number of Pgp-immunopositive cells differed significantly. Thus, more prolonged application of GC for reducing clinical manifestations was required in patients with aspirin induced or fatal bronchial asthma. The number of Pgp-immunopositive lymphocytes per one patients was significantly higher in patients with fatal bronchial asthma and in patients with steroid dependent bronchial asthma (6.8 ± 0.1 and 7.2 ± 0.2, respectively) comparing with patients with non stable bronchial asthma being therapeutically resistant (3.2±0.2 and 3.5±0.1, respectively). Thus, our findings suggest possible pathogenic role of Pgp in development of resistance to GC therapy in patients with bronchial asthma. Detection of Pgp expression on peripheral blood lymphocytes would allow optimizing the volume and duration of intensive anti inflammatory therapy and predicting the doses of basic drugs.


2014 ◽  
Vol 12 (1-2) ◽  
pp. 21
Author(s):  
V. N. Mineev ◽  
L. N. Sorokina ◽  
M. A. Nyoma ◽  
V. I. Trofimov

2021 ◽  
Vol 23 (1) ◽  
pp. 149-156
Author(s):  
A. I. Turyanskaya ◽  
N. G. Plekhova ◽  
V. A. Sabynych ◽  
E. V. Procekova

The changing states of T cell populations responsible for the chronic course of allergic inflammation and diseases, including allergic bronchial asthma, are not yet sufficiently characterized. The aim of this study was to detect phenotypic changes in the CD45RA/CD45RO positive T lymphocytes and the level of regulatory cytokines (TNFα, IFNγ, IL-4, IL-6, IL-8, IL-10, IL-13, IL-17А, IL-17F) in allergic respiratory diseases (ARD) in children. In blood of 90 children aged 3-11 (60 children with ARD and 30 healthy peers) were studied of the immune cellular populations and cytokine indices. The levels of IL-4, IL-8, IL-10, IL-13, IL-17A and IL-17F in blood serum of children with bronchial asthma and allergic rhinitis differed from appropriate indices in control group (p = 0.001). The quantity of CD3+CD8+CD45RACD45RO+ cells, T helpers (p < 0.05) and Th effectors simultaneously expressing both isoforms of the CD45RA+ and CD45RO receptor in peripheral blood of children with ARD significantly exceeded those in control group (p < 0.001). In healthy children, Th17 population (CD3+CD4+CD196 lymphocytes) comprised 9.49±1.6% of CD3+CD4+ of cells, the number of such lymphocytes was significantly increased to 14.5±0.77 in children with allergic diseases (p < 0.001). Absolute numbers of Th17+ cells were 93.0±9.30 and 127,0±72.0 cells/µl respectively (p = 0.002). Indicators of CD4CD45RO positive memory cells in children with ARD was determined as significantly lower (p < 0.001), whereas quantity of CD3+CD19+ proved to be higher (p < 0.05) than in healthy peers. Absolute counts of these cells did not differ between the groups. The number of CD8+CD45RO+T lymphocytes was significantly higher in children with allergic diseases (p < 0.025). This research shows that the quantitative ratio of CD3+CD8+CD45RA+ and CD3+CD8+CD45RO+ populations of T cells, and increased levels of cytokines, synthesizable via Th2 and Th17, in peripheral blood may be helpful for understanding genesis of allergic respiratory diseases, and extends our knowledge on immune mechanisms of allergic disorders for individualization of therapeutic programs.


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